summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--.clang-format17
-rw-r--r--.gitattributes1
-rw-r--r--.gitignore11
-rw-r--r--Documentation/CodingGuidelines6
-rw-r--r--Documentation/Makefile1
-rw-r--r--Documentation/MyFirstContribution.txt1134
-rw-r--r--Documentation/RelNotes/2.23.0.txt349
-rw-r--r--Documentation/blame-options.txt19
-rw-r--r--Documentation/config.txt19
-rw-r--r--Documentation/config/advice.txt25
-rw-r--r--Documentation/config/alias.txt22
-rw-r--r--Documentation/config/blame.txt16
-rw-r--r--Documentation/config/branch.txt4
-rw-r--r--Documentation/config/checkout.txt17
-rw-r--r--Documentation/config/diff.txt3
-rw-r--r--Documentation/config/fetch.txt5
-rw-r--r--Documentation/config/format.txt15
-rw-r--r--Documentation/config/gpg.txt2
-rw-r--r--Documentation/config/interactive.txt3
-rw-r--r--Documentation/config/status.txt5
-rw-r--r--Documentation/config/tag.txt8
-rw-r--r--Documentation/fetch-options.txt17
-rw-r--r--Documentation/git-blame.txt1
-rw-r--r--Documentation/git-branch.txt56
-rw-r--r--Documentation/git-check-ref-format.txt3
-rw-r--r--Documentation/git-checkout.txt222
-rw-r--r--Documentation/git-cherry-pick.txt4
-rw-r--r--Documentation/git-clean.txt2
-rw-r--r--Documentation/git-clone.txt43
-rw-r--r--Documentation/git-commit-graph.txt26
-rw-r--r--Documentation/git-commit.txt2
-rw-r--r--Documentation/git-fast-export.txt7
-rw-r--r--Documentation/git-fast-import.txt7
-rw-r--r--Documentation/git-for-each-ref.txt5
-rw-r--r--Documentation/git-format-patch.txt11
-rw-r--r--Documentation/git-hash-object.txt4
-rw-r--r--Documentation/git-merge-base.txt2
-rw-r--r--Documentation/git-merge.txt12
-rw-r--r--Documentation/git-multi-pack-index.txt32
-rw-r--r--Documentation/git-rebase.txt4
-rw-r--r--Documentation/git-remote.txt2
-rw-r--r--Documentation/git-rerere.txt10
-rw-r--r--Documentation/git-reset.txt33
-rw-r--r--Documentation/git-restore.txt185
-rw-r--r--Documentation/git-rev-list.txt1
-rw-r--r--Documentation/git-revert.txt11
-rw-r--r--Documentation/git-send-email.txt16
-rw-r--r--Documentation/git-stash.txt9
-rw-r--r--Documentation/git-switch.txt273
-rw-r--r--Documentation/git-tag.txt7
-rw-r--r--Documentation/git-update-server-info.txt11
-rw-r--r--Documentation/git.txt26
-rw-r--r--Documentation/gitattributes.txt7
-rw-r--r--Documentation/gitcli.txt16
-rw-r--r--Documentation/gitcore-tutorial.txt19
-rw-r--r--Documentation/giteveryday.txt29
-rw-r--r--Documentation/githooks.txt8
-rw-r--r--Documentation/gitignore.txt66
-rw-r--r--Documentation/gittutorial-2.txt4
-rw-r--r--Documentation/gittutorial.txt6
-rw-r--r--Documentation/gitweb.txt3
-rw-r--r--Documentation/gitworkflows.txt3
-rw-r--r--Documentation/merge-options.txt2
-rw-r--r--Documentation/rev-list-options.txt18
-rw-r--r--Documentation/revisions.txt2
-rw-r--r--Documentation/sequencer.txt4
-rw-r--r--Documentation/technical/api-trace2.txt4
-rw-r--r--Documentation/technical/commit-graph-format.txt11
-rw-r--r--Documentation/technical/commit-graph.txt210
-rw-r--r--Documentation/user-manual.txt70
-rwxr-xr-xGIT-VERSION-GEN2
-rw-r--r--Makefile63
l---------RelNotes2
-rw-r--r--advice.c23
-rw-r--r--advice.h3
-rw-r--r--apply.c188
-rw-r--r--apply.h48
-rw-r--r--archive.c4
-rw-r--r--blame.c1019
-rw-r--r--blame.h6
-rw-r--r--blob.c5
-rw-r--r--branch.c9
-rw-r--r--branch.h8
-rw-r--r--builtin.h3
-rw-r--r--builtin/am.c27
-rw-r--r--builtin/bisect--helper.c5
-rw-r--r--builtin/blame.c62
-rw-r--r--builtin/branch.c19
-rw-r--r--builtin/cat-file.c3
-rw-r--r--builtin/checkout.c904
-rw-r--r--builtin/clone.c19
-rw-r--r--builtin/column.c2
-rw-r--r--builtin/commit-graph.c68
-rw-r--r--builtin/commit.c41
-rw-r--r--builtin/describe.c4
-rw-r--r--builtin/env--helper.c95
-rw-r--r--builtin/fast-export.c59
-rw-r--r--builtin/fetch.c81
-rw-r--r--builtin/fsck.c8
-rw-r--r--builtin/gc.c12
-rw-r--r--builtin/grep.c6
-rw-r--r--builtin/hash-object.c2
-rw-r--r--builtin/index-pack.c26
-rw-r--r--builtin/init-db.c3
-rw-r--r--builtin/interpret-trailers.c3
-rw-r--r--builtin/log.c22
-rw-r--r--builtin/ls-files.c2
-rw-r--r--builtin/merge-tree.c22
-rw-r--r--builtin/merge.c97
-rw-r--r--builtin/mktree.c4
-rw-r--r--builtin/multi-pack-index.c14
-rw-r--r--builtin/name-rev.c8
-rw-r--r--builtin/pack-objects.c34
-rw-r--r--builtin/patch-id.c17
-rw-r--r--builtin/prune.c2
-rw-r--r--builtin/pull.c7
-rw-r--r--builtin/range-diff.c2
-rw-r--r--builtin/read-tree.c4
-rw-r--r--builtin/rebase.c68
-rw-r--r--builtin/receive-pack.c8
-rw-r--r--builtin/remote.c4
-rw-r--r--builtin/repack.c34
-rw-r--r--builtin/reset.c6
-rw-r--r--builtin/rev-list.c29
-rw-r--r--builtin/revert.c7
-rw-r--r--builtin/rm.c8
-rw-r--r--builtin/show-branch.c3
-rw-r--r--builtin/stash.c9
-rw-r--r--builtin/submodule--helper.c4
-rw-r--r--builtin/tag.c22
-rw-r--r--builtin/unpack-objects.c2
-rw-r--r--builtin/update-index.c4
-rw-r--r--builtin/upload-pack.c2
-rw-r--r--builtin/verify-commit.c23
-rw-r--r--builtin/worktree.c10
-rw-r--r--builtin/write-tree.c12
-rw-r--r--bundle.c3
-rw-r--r--cache-tree.c14
-rw-r--r--cache.h34
-rwxr-xr-xci/install-dependencies.sh2
-rwxr-xr-xci/lib.sh8
-rw-r--r--command-list.txt8
-rw-r--r--commit-graph.c1410
-rw-r--r--commit-graph.h43
-rw-r--r--commit.c7
-rw-r--r--compat/mingw.c135
-rw-r--r--compat/mingw.h24
-rw-r--r--compat/msvc.h10
-rw-r--r--compat/obstack.h2
-rw-r--r--compat/poll/poll.c4
-rw-r--r--compat/vcbuild/.gitignore3
-rw-r--r--compat/vcbuild/README39
-rw-r--r--compat/vcbuild/find_vs_env.bat168
-rwxr-xr-xcompat/vcbuild/scripts/clink.pl41
-rw-r--r--compat/vcbuild/vcpkg_copy_dlls.bat39
-rw-r--r--compat/vcbuild/vcpkg_install.bat80
-rw-r--r--compat/win32/git.manifest25
-rw-r--r--compat/winansi.c37
-rw-r--r--config.c100
-rw-r--r--config.mak.uname86
-rw-r--r--configure.ac14
-rw-r--r--connected.c1
-rw-r--r--contrib/coccinelle/array.cocci61
-rw-r--r--contrib/completion/git-completion.bash59
-rw-r--r--contrib/completion/git-prompt.sh37
-rw-r--r--decorate.c2
-rw-r--r--delta-islands.c29
-rw-r--r--delta-islands.h2
-rw-r--r--diff-lib.c2
-rw-r--r--diff.c39
-rw-r--r--diff.h4
-rw-r--r--diffcore-rename.c6
-rw-r--r--dir.c2
-rw-r--r--editor.c6
-rw-r--r--entry.c2
-rw-r--r--fast-import.c22
-rw-r--r--fetch-pack.c73
-rw-r--r--fsck.c39
-rw-r--r--fsmonitor.c8
-rw-r--r--fsmonitor.h5
-rw-r--r--gettext.c26
-rwxr-xr-xgit-add--interactive.perl58
-rw-r--r--git-compat-util.h9
-rwxr-xr-xgit-mergetool.sh45
-rwxr-xr-xgit-p4.py48
-rw-r--r--git-rebase--am.sh85
-rw-r--r--git-rebase--common.sh69
-rw-r--r--git-rebase--preserve-merges.sh55
-rwxr-xr-xgit-request-pull.sh46
-rwxr-xr-xgit-send-email.perl205
-rw-r--r--git-sh-i18n.sh4
-rw-r--r--git.c6
-rw-r--r--git.rc2
-rw-r--r--grep.c4
-rw-r--r--hash.h24
-rw-r--r--hashmap.h8
-rw-r--r--help.c8
-rw-r--r--http-push.c4
-rw-r--r--khash.h22
-rw-r--r--kwset.c10
-rw-r--r--line-log.c7
-rw-r--r--list-objects-filter-options.c2
-rw-r--r--list-objects-filter.c16
-rw-r--r--ls-refs.c3
-rw-r--r--match-trees.c12
-rw-r--r--merge-recursive.c43
-rw-r--r--midx.c440
-rw-r--r--midx.h2
-rw-r--r--name-hash.c3
-rw-r--r--notes.c4
-rw-r--r--object-store.h12
-rw-r--r--object.c28
-rw-r--r--object.h6
-rw-r--r--oidmap.c13
-rw-r--r--oidset.c47
-rw-r--r--oidset.h12
-rw-r--r--pack-bitmap-write.c30
-rw-r--r--pack-bitmap.c16
-rw-r--r--pack-bitmap.h2
-rw-r--r--pack-objects.c12
-rw-r--r--pack-objects.h2
-rw-r--r--packfile.c41
-rw-r--r--packfile.h9
-rw-r--r--pager.c20
-rw-r--r--parse-options-cb.c17
-rw-r--r--parse-options.h1
-rw-r--r--patch-ids.c12
-rw-r--r--patch-ids.h2
-rw-r--r--po/README2
-rw-r--r--preload-index.c2
-rw-r--r--pretty.c4
-rw-r--r--progress.c31
-rw-r--r--range-diff.c124
-rw-r--r--reachable.c4
-rw-r--r--read-cache.c16
-rw-r--r--ref-filter.c213
-rw-r--r--refs.c112
-rw-r--r--refs.h6
-rw-r--r--revision.c36
-rw-r--r--sequencer.c226
-rw-r--r--sequencer.h3
-rw-r--r--server-info.c158
-rw-r--r--sh-i18n--envsubst.c2
-rw-r--r--sha1-file.c104
-rw-r--r--sha1-name.c27
-rw-r--r--shallow.c3
-rw-r--r--strbuf.c42
-rw-r--r--strbuf.h6
-rw-r--r--submodule.c10
-rw-r--r--submodule.h3
-rw-r--r--t/README19
-rw-r--r--t/helper/test-example-decorate.c6
-rw-r--r--t/helper/test-hashmap.c9
-rw-r--r--t/helper/test-match-trees.c2
-rw-r--r--t/helper/test-oidmap.c112
-rw-r--r--t/helper/test-tool.c1
-rw-r--r--t/helper/test-tool.h1
-rw-r--r--t/lib-git-daemon.sh7
-rw-r--r--t/lib-git-svn.sh11
-rw-r--r--t/lib-httpd.sh15
-rw-r--r--t/lib-patch-mode.sh12
-rwxr-xr-xt/perf/p5600-clone-reference.sh27
-rwxr-xr-xt/t0000-basic.sh10
-rwxr-xr-xt/t0001-init.sh28
-rwxr-xr-xt/t0007-git-var.sh2
-rwxr-xr-xt/t0011-hashmap.sh9
-rwxr-xr-xt/t0016-oidmap.sh102
-rwxr-xr-xt/t0017-env-helper.sh99
-rwxr-xr-xt/t0205-gettext-poison.sh7
-rwxr-xr-xt/t1090-sparse-checkout-scope.sh14
-rwxr-xr-xt/t1301-shared-repo.sh6
-rwxr-xr-xt/t1305-config-include.sh60
-rwxr-xr-xt/t2014-checkout-switch.sh (renamed from t/t2014-switch.sh)0
-rwxr-xr-xt/t2020-checkout-detach.sh28
-rwxr-xr-xt/t2060-switch.sh96
-rwxr-xr-xt/t2070-restore.sh98
-rwxr-xr-xt/t2071-restore-patch.sh110
-rwxr-xr-xt/t2400-worktree-add.sh17
-rwxr-xr-xt/t3200-branch.sh16
-rwxr-xr-xt/t3203-branch-output.sh44
-rwxr-xr-xt/t3206-range-diff.sh124
-rw-r--r--t/t3206/history.export84
-rwxr-xr-xt/t3400-rebase.sh2
-rwxr-xr-xt/t3404-rebase-interactive.sh122
-rwxr-xr-xt/t3418-rebase-continue.sh8
-rwxr-xr-xt/t3420-rebase-autostash.sh15
-rwxr-xr-xt/t3430-rebase-merges.sh31
-rwxr-xr-xt/t3510-cherry-pick-sequence.sh122
-rwxr-xr-xt/t3701-add-interactive.sh8
-rwxr-xr-xt/t3903-stash.sh18
-rwxr-xr-xt/t4014-format-patch.sh102
-rwxr-xr-xt/t4018-diff-funcname.sh1
-rw-r--r--t/t4018/matlab-class-definition5
-rw-r--r--t/t4018/matlab-function4
-rw-r--r--t/t4018/matlab-octave-section-13
-rw-r--r--t/t4018/matlab-octave-section-23
-rw-r--r--t/t4018/matlab-section3
-rw-r--r--t/t4018/rust-fn5
-rw-r--r--t/t4018/rust-impl5
-rw-r--r--t/t4018/rust-struct5
-rw-r--r--t/t4018/rust-trait5
-rwxr-xr-xt/t4202-log.sh2
-rwxr-xr-xt/t4257-am-interactive.sh52
-rwxr-xr-xt/t5150-request-pull.sh53
-rwxr-xr-xt/t5200-update-server-info.sh41
-rwxr-xr-xt/t5318-commit-graph.sh10
-rwxr-xr-xt/t5319-multi-pack-index.sh184
-rwxr-xr-xt/t5324-split-commit-graph.sh343
-rwxr-xr-xt/t5504-fetch-receive-strict.sh14
-rwxr-xr-xt/t5509-fetch-push-namespaces.sh28
-rwxr-xr-xt/t5510-fetch.sh23
-rwxr-xr-xt/t5512-ls-remote.sh3
-rwxr-xr-xt/t5514-fetch-multiple.sh7
-rwxr-xr-xt/t5541-http-push-smart.sh6
-rwxr-xr-xt/t5551-http-fetch-smart.sh9
-rwxr-xr-xt/t5601-clone.sh16
-rwxr-xr-xt/t5607-clone-bundle.sh6
-rwxr-xr-xt/t5616-partial-clone.sh112
-rwxr-xr-xt/t5617-clone-submodules-remote.sh54
-rwxr-xr-xt/t5618-alternate-refs.sh60
-rwxr-xr-xt/t5801-remote-helpers.sh18
-rwxr-xr-xt/t5801/git-remote-testgit22
-rwxr-xr-xt/t6000-rev-list-misc.sh20
-rwxr-xr-xt/t6040-tracking-info.sh37
-rwxr-xr-xt/t6300-for-each-ref.sh26
-rwxr-xr-xt/t6302-for-each-ref-filter.sh13
-rwxr-xr-xt/t6500-gc.sh2
-rwxr-xr-xt/t7004-tag.sh21
-rwxr-xr-xt/t7060-wtstatus.sh5
-rwxr-xr-xt/t7064-wtstatus-pv2.sh8
-rwxr-xr-xt/t7201-co.sh2
-rwxr-xr-xt/t7405-submodule-merge.sh2
-rwxr-xr-xt/t7407-submodule-foreach.sh7
-rwxr-xr-xt/t7502-commit-porcelain.sh2
-rwxr-xr-xt/t7508-status.sh144
-rwxr-xr-xt/t7512-status-help.sh50
-rwxr-xr-xt/t7513-interpret-trailers.sh71
-rwxr-xr-xt/t7600-merge.sh52
-rwxr-xr-xt/t7610-mergetool.sh309
-rwxr-xr-xt/t7700-repack.sh10
-rwxr-xr-xt/t7810-grep.sh6
-rwxr-xr-xt/t7814-grep-recurse-submodules.sh18
-rwxr-xr-xt/t8003-blame-corner-cases.sh36
-rwxr-xr-xt/t8013-blame-ignore-revs.sh274
-rwxr-xr-xt/t8014-blame-ignore-fuzzy.sh437
-rwxr-xr-xt/t9001-send-email.sh102
-rwxr-xr-xt/t9300-fast-import.sh20
-rwxr-xr-xt/t9350-fast-export.sh78
-rw-r--r--t/t9350/broken-iso-8859-7-commit-message.txt1
-rw-r--r--t/t9350/simple-iso-8859-7-commit-message.txt1
-rwxr-xr-xt/t9801-git-p4-branch.sh132
-rwxr-xr-xt/t9817-git-p4-exclude.sh51
-rwxr-xr-xt/t9832-unshelve.sh8
-rwxr-xr-xt/t9902-completion.sh2
-rwxr-xr-xt/t9903-bash-prompt.sh20
-rw-r--r--t/test-lib-functions.sh91
-rw-r--r--t/test-lib.sh28
-rw-r--r--tag.c5
-rw-r--r--transport-helper.c2
-rw-r--r--transport.c97
-rw-r--r--transport.h2
-rw-r--r--tree-diff.c4
-rw-r--r--tree-walk.c35
-rw-r--r--tree-walk.h8
-rw-r--r--tree.c5
-rw-r--r--unicode-width.h3
-rw-r--r--unpack-trees.c4
-rw-r--r--upload-pack.c14
-rw-r--r--url.c4
-rw-r--r--userdiff.c13
-rw-r--r--walker.c2
-rw-r--r--worktree.c7
-rw-r--r--wrapper.c2
-rw-r--r--wt-status.c57
-rw-r--r--wt-status.h3
375 files changed, 13606 insertions, 3404 deletions
diff --git a/.clang-format b/.clang-format
index 41d4cd2..c592dda 100644
--- a/.clang-format
+++ b/.clang-format
@@ -148,8 +148,21 @@ SpacesInSquareBrackets: false
Cpp11BracedListStyle: false
# A list of macros that should be interpreted as foreach loops instead of as
-# function calls.
-ForEachMacros: ['for_each_string_list_item', 'for_each_wanted_builtin', 'for_each_builtin', 'for_each_ut']
+# function calls. Taken from:
+# git grep -h '^#define [^[:space:]]*for_each[^[:space:]]*(' \
+# | sed "s,^#define \([^[:space:]]*for_each[^[:space:]]*\)(.*$, - '\1'," \
+# | sort | uniq
+ForEachMacros:
+ - 'for_each_abbrev'
+ - 'for_each_builtin'
+ - 'for_each_string_list_item'
+ - 'for_each_ut'
+ - 'for_each_wanted_builtin'
+ - 'list_for_each'
+ - 'list_for_each_dir'
+ - 'list_for_each_prev'
+ - 'list_for_each_prev_safe'
+ - 'list_for_each_safe'
# The maximum number of consecutive empty lines to keep.
MaxEmptyLinesToKeep: 1
diff --git a/.gitattributes b/.gitattributes
index 9fa72ad..b08a141 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -5,6 +5,7 @@
*.pl eof=lf diff=perl
*.pm eol=lf diff=perl
*.py eol=lf diff=python
+*.bat eol=crlf
/Documentation/**/*.txt eol=lf
/command-list.txt eol=lf
/GIT-VERSION-GEN eol=lf
diff --git a/.gitignore b/.gitignore
index 2374f77..069c190 100644
--- a/.gitignore
+++ b/.gitignore
@@ -58,6 +58,7 @@
/git-difftool
/git-difftool--helper
/git-describe
+/git-env--helper
/git-fast-export
/git-fast-import
/git-fetch
@@ -122,9 +123,6 @@
/git-range-diff
/git-read-tree
/git-rebase
-/git-rebase--am
-/git-rebase--common
-/git-rebase--interactive
/git-rebase--preserve-merges
/git-receive-pack
/git-reflog
@@ -142,6 +140,7 @@
/git-request-pull
/git-rerere
/git-reset
+/git-restore
/git-rev-list
/git-rev-parse
/git-revert
@@ -166,6 +165,7 @@
/git-submodule
/git-submodule--helper
/git-svn
+/git-switch
/git-symbolic-ref
/git-tag
/git-unpack-file
@@ -226,6 +226,11 @@
*.user
*.idb
*.pdb
+*.ilk
+*.iobj
+*.ipdb
+*.dll
+.vs/
/Debug/
/Release/
*.dSYM
diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines
index 32210a4..1169ff6 100644
--- a/Documentation/CodingGuidelines
+++ b/Documentation/CodingGuidelines
@@ -412,6 +412,12 @@ For C programs:
must be declared with "extern" in header files. However, function
declarations should not use "extern", as that is already the default.
+ - You can launch gdb around your program using the shorthand GIT_DEBUGGER.
+ Run `GIT_DEBUGGER=1 ./bin-wrappers/git foo` to simply use gdb as is, or
+ run `GIT_DEBUGGER="<debugger> <debugger-args>" ./bin-wrappers/git foo` to
+ use your own debugger and arguments. Example: `GIT_DEBUGGER="ddd --gdb"
+ ./bin-wrappers/git log` (See `wrap-for-bin.sh`.)
+
For Perl programs:
- Most of the C guidelines above apply.
diff --git a/Documentation/Makefile b/Documentation/Makefile
index dbf5a0f..76f2ecf 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -76,6 +76,7 @@ SP_ARTICLES += howto/maintain-git
API_DOCS = $(patsubst %.txt,%,$(filter-out technical/api-index-skel.txt technical/api-index.txt, $(wildcard technical/api-*.txt)))
SP_ARTICLES += $(API_DOCS)
+TECH_DOCS += MyFirstContribution
TECH_DOCS += SubmittingPatches
TECH_DOCS += technical/hash-function-transition
TECH_DOCS += technical/http-protocol
diff --git a/Documentation/MyFirstContribution.txt b/Documentation/MyFirstContribution.txt
new file mode 100644
index 0000000..f867037
--- /dev/null
+++ b/Documentation/MyFirstContribution.txt
@@ -0,0 +1,1134 @@
+My First Contribution to the Git Project
+========================================
+:sectanchors:
+
+[[summary]]
+== Summary
+
+This is a tutorial demonstrating the end-to-end workflow of creating a change to
+the Git tree, sending it for review, and making changes based on comments.
+
+[[prerequisites]]
+=== Prerequisites
+
+This tutorial assumes you're already fairly familiar with using Git to manage
+source code. The Git workflow steps will largely remain unexplained.
+
+[[related-reading]]
+=== Related Reading
+
+This tutorial aims to summarize the following documents, but the reader may find
+useful additional context:
+
+- `Documentation/SubmittingPatches`
+- `Documentation/howto/new-command.txt`
+
+[[getting-started]]
+== Getting Started
+
+[[cloning]]
+=== Clone the Git Repository
+
+Git is mirrored in a number of locations. Clone the repository from one of them;
+https://git-scm.com/downloads suggests one of the best places to clone from is
+the mirror on GitHub.
+
+----
+$ git clone https://github.com/git/git git
+$ cd git
+----
+
+[[identify-problem]]
+=== Identify Problem to Solve
+
+////
+Use + to indicate fixed-width here; couldn't get ` to work nicely with the
+quotes around "Pony Saying 'Um, Hello'".
+////
+In this tutorial, we will add a new command, +git psuh+, short for ``Pony Saying
+`Um, Hello''' - a feature which has gone unimplemented despite a high frequency
+of invocation during users' typical daily workflow.
+
+(We've seen some other effort in this space with the implementation of popular
+commands such as `sl`.)
+
+[[setup-workspace]]
+=== Set Up Your Workspace
+
+Let's start by making a development branch to work on our changes. Per
+`Documentation/SubmittingPatches`, since a brand new command is a new feature,
+it's fine to base your work on `master`. However, in the future for bugfixes,
+etc., you should check that document and base it on the appropriate branch.
+
+For the purposes of this document, we will base all our work on the `master`
+branch of the upstream project. Create the `psuh` branch you will use for
+development like so:
+
+----
+$ git checkout -b psuh origin/master
+----
+
+We'll make a number of commits here in order to demonstrate how to send a topic
+with multiple patches up for review simultaneously.
+
+[[code-it-up]]
+== Code It Up!
+
+NOTE: A reference implementation can be found at
+https://github.com/nasamuffin/git/tree/psuh.
+
+[[add-new-command]]
+=== Adding a New Command
+
+Lots of the subcommands are written as builtins, which means they are
+implemented in C and compiled into the main `git` executable. Implementing the
+very simple `psuh` command as a built-in will demonstrate the structure of the
+codebase, the internal API, and the process of working together as a contributor
+with the reviewers and maintainer to integrate this change into the system.
+
+Built-in subcommands are typically implemented in a function named "cmd_"
+followed by the name of the subcommand, in a source file named after the
+subcommand and contained within `builtin/`. So it makes sense to implement your
+command in `builtin/psuh.c`. Create that file, and within it, write the entry
+point for your command in a function matching the style and signature:
+
+----
+int cmd_psuh(int argc, const char **argv, const char *prefix)
+----
+
+We'll also need to add the declaration of psuh; open up `builtin.h`, find the
+declaration for `cmd_push`, and add a new line for `psuh` immediately before it,
+in order to keep the declarations sorted:
+
+----
+int cmd_psuh(int argc, const char **argv, const char *prefix);
+----
+
+Be sure to `#include "builtin.h"` in your `psuh.c`.
+
+Go ahead and add some throwaway printf to that function. This is a decent
+starting point as we can now add build rules and register the command.
+
+NOTE: Your throwaway text, as well as much of the text you will be adding over
+the course of this tutorial, is user-facing. That means it needs to be
+localizable. Take a look at `po/README` under "Marking strings for translation".
+Throughout the tutorial, we will mark strings for translation as necessary; you
+should also do so when writing your user-facing commands in the future.
+
+----
+int cmd_psuh(int argc, const char **argv, const char *prefix)
+{
+ printf(_("Pony saying hello goes here.\n"));
+ return 0;
+}
+----
+
+Let's try to build it. Open `Makefile`, find where `builtin/push.o` is added
+to `BUILTIN_OBJS`, and add `builtin/psuh.o` in the same way next to it in
+alphabetical order. Once you've done so, move to the top-level directory and
+build simply with `make`. Also add the `DEVELOPER=1` variable to turn on
+some additional warnings:
+
+----
+$ echo DEVELOPER=1 >config.mak
+$ make
+----
+
+NOTE: When you are developing the Git project, it's preferred that you use the
+`DEVELOPER` flag; if there's some reason it doesn't work for you, you can turn
+it off, but it's a good idea to mention the problem to the mailing list.
+
+NOTE: The Git build is parallelizable. `-j#` is not included above but you can
+use it as you prefer, here and elsewhere.
+
+Great, now your new command builds happily on its own. But nobody invokes it.
+Let's change that.
+
+The list of commands lives in `git.c`. We can register a new command by adding
+a `cmd_struct` to the `commands[]` array. `struct cmd_struct` takes a string
+with the command name, a function pointer to the command implementation, and a
+setup option flag. For now, let's keep mimicking `push`. Find the line where
+`cmd_push` is registered, copy it, and modify it for `cmd_psuh`, placing the new
+line in alphabetical order.
+
+The options are documented in `builtin.h` under "Adding a new built-in." Since
+we hope to print some data about the user's current workspace context later,
+we need a Git directory, so choose `RUN_SETUP` as your only option.
+
+Go ahead and build again. You should see a clean build, so let's kick the tires
+and see if it works. There's a binary you can use to test with in the
+`bin-wrappers` directory.
+
+----
+$ ./bin-wrappers/git psuh
+----
+
+Check it out! You've got a command! Nice work! Let's commit this.
+
+`git status` reveals modified `Makefile`, `builtin.h`, and `git.c` as well as
+untracked `builtin/psuh.c` and `git-psuh`. First, let's take care of the binary,
+which should be ignored. Open `.gitignore` in your editor, find `/git-push`, and
+add an entry for your new command in alphabetical order:
+
+----
+...
+/git-prune-packed
+/git-psuh
+/git-pull
+/git-push
+/git-quiltimport
+/git-range-diff
+...
+----
+
+Checking `git status` again should show that `git-psuh` has been removed from
+the untracked list and `.gitignore` has been added to the modified list. Now we
+can stage and commit:
+
+----
+$ git add Makefile builtin.h builtin/psuh.c git.c .gitignore
+$ git commit -s
+----
+
+You will be presented with your editor in order to write a commit message. Start
+the commit with a 50-column or less subject line, including the name of the
+component you're working on, followed by a blank line (always required) and then
+the body of your commit message, which should provide the bulk of the context.
+Remember to be explicit and provide the "Why" of your change, especially if it
+couldn't easily be understood from your diff. When editing your commit message,
+don't remove the Signed-off-by line which was added by `-s` above.
+
+----
+psuh: add a built-in by popular demand
+
+Internal metrics indicate this is a command many users expect to be
+present. So here's an implementation to help drive customer
+satisfaction and engagement: a pony which doubtfully greets the user,
+or, a Pony Saying "Um, Hello" (PSUH).
+
+This commit message is intentionally formatted to 72 columns per line,
+starts with a single line as "commit message subject" that is written as
+if to command the codebase to do something (add this, teach a command
+that). The body of the message is designed to add information about the
+commit that is not readily deduced from reading the associated diff,
+such as answering the question "why?".
+
+Signed-off-by: A U Thor <author@example.com>
+----
+
+Go ahead and inspect your new commit with `git show`. "psuh:" indicates you
+have modified mainly the `psuh` command. The subject line gives readers an idea
+of what you've changed. The sign-off line (`-s`) indicates that you agree to
+the Developer's Certificate of Origin 1.1 (see the
+`Documentation/SubmittingPatches` +++[[dco]]+++ header).
+
+For the remainder of the tutorial, the subject line only will be listed for the
+sake of brevity. However, fully-fleshed example commit messages are available
+on the reference implementation linked at the top of this document.
+
+[[implementation]]
+=== Implementation
+
+It's probably useful to do at least something besides printing out a string.
+Let's start by having a look at everything we get.
+
+Modify your `cmd_psuh` implementation to dump the args you're passed, keeping
+existing `printf()` calls in place:
+
+----
+ int i;
+
+ ...
+
+ printf(Q_("Your args (there is %d):\n",
+ "Your args (there are %d):\n",
+ argc),
+ argc);
+ for (i = 0; i < argc; i++)
+ printf("%d: %s\n", i, argv[i]);
+
+ printf(_("Your current working directory:\n<top-level>%s%s\n"),
+ prefix ? "/" : "", prefix ? prefix : "");
+
+----
+
+Build and try it. As you may expect, there's pretty much just whatever we give
+on the command line, including the name of our command. (If `prefix` is empty
+for you, try `cd Documentation/ && ../bin-wrappers/git psuh`). That's not so
+helpful. So what other context can we get?
+
+Add a line to `#include "config.h"`. Then, add the following bits to the
+function body:
+
+----
+ const char *cfg_name;
+
+...
+
+ git_config(git_default_config, NULL);
+ if (git_config_get_string_const("user.name", &cfg_name) > 0)
+ printf(_("No name is found in config\n"));
+ else
+ printf(_("Your name: %s\n"), cfg_name);
+----
+
+`git_config()` will grab the configuration from config files known to Git and
+apply standard precedence rules. `git_config_get_string_const()` will look up
+a specific key ("user.name") and give you the value. There are a number of
+single-key lookup functions like this one; you can see them all (and more info
+about how to use `git_config()`) in `Documentation/technical/api-config.txt`.
+
+You should see that the name printed matches the one you see when you run:
+
+----
+$ git config --get user.name
+----
+
+Great! Now we know how to check for values in the Git config. Let's commit this
+too, so we don't lose our progress.
+
+----
+$ git add builtin/psuh.c
+$ git commit -sm "psuh: show parameters & config opts"
+----
+
+NOTE: Again, the above is for sake of brevity in this tutorial. In a real change
+you should not use `-m` but instead use the editor to write a meaningful
+message.
+
+Still, it'd be nice to know what the user's working context is like. Let's see
+if we can print the name of the user's current branch. We can mimic the
+`git status` implementation; the printer is located in `wt-status.c` and we can
+see that the branch is held in a `struct wt_status`.
+
+`wt_status_print()` gets invoked by `cmd_status()` in `builtin/commit.c`.
+Looking at that implementation we see the status config being populated like so:
+
+----
+status_init_config(&s, git_status_config);
+----
+
+But as we drill down, we can find that `status_init_config()` wraps a call
+to `git_config()`. Let's modify the code we wrote in the previous commit.
+
+Be sure to include the header to allow you to use `struct wt_status`:
+----
+#include "wt-status.h"
+----
+
+Then modify your `cmd_psuh` implementation to declare your `struct wt_status`,
+prepare it, and print its contents:
+
+----
+ struct wt_status status;
+
+...
+
+ wt_status_prepare(the_repository, &status);
+ git_config(git_default_config, &status);
+
+...
+
+ printf(_("Your current branch: %s\n"), status.branch);
+----
+
+Run it again. Check it out - here's the (verbose) name of your current branch!
+
+Let's commit this as well.
+
+----
+$ git add builtin/psuh.c
+$ git commit -sm "psuh: print the current branch"
+----
+
+Now let's see if we can get some info about a specific commit.
+
+Luckily, there are some helpers for us here. `commit.h` has a function called
+`lookup_commit_reference_by_name` to which we can simply provide a hardcoded
+string; `pretty.h` has an extremely handy `pp_commit_easy()` call which doesn't
+require a full format object to be passed.
+
+Add the following includes:
+
+----
+#include "commit.h"
+#include "pretty.h"
+----
+
+Then, add the following lines within your implementation of `cmd_psuh()` near
+the declarations and the logic, respectively.
+
+----
+ struct commit *c = NULL;
+ struct strbuf commitline = STRBUF_INIT;
+
+...
+
+ c = lookup_commit_reference_by_name("origin/master");
+
+ if (c != NULL) {
+ pp_commit_easy(CMIT_FMT_ONELINE, c, &commitline);
+ printf(_("Current commit: %s\n"), commitline.buf);
+ }
+----
+
+The `struct strbuf` provides some safety belts to your basic `char*`, one of
+which is a length member to prevent buffer overruns. It needs to be initialized
+nicely with `STRBUF_INIT`. Keep it in mind when you need to pass around `char*`.
+
+`lookup_commit_reference_by_name` resolves the name you pass it, so you can play
+with the value there and see what kind of things you can come up with.
+
+`pp_commit_easy` is a convenience wrapper in `pretty.h` that takes a single
+format enum shorthand, rather than an entire format struct. It then
+pretty-prints the commit according to that shorthand. These are similar to the
+formats available with `--pretty=FOO` in many Git commands.
+
+Build it and run, and if you're using the same name in the example, you should
+see the subject line of the most recent commit in `origin/master` that you know
+about. Neat! Let's commit that as well.
+
+----
+$ git add builtin/psuh.c
+$ git commit -sm "psuh: display the top of origin/master"
+----
+
+[[add-documentation]]
+=== Adding Documentation
+
+Awesome! You've got a fantastic new command that you're ready to share with the
+community. But hang on just a minute - this isn't very user-friendly. Run the
+following:
+
+----
+$ ./bin-wrappers/git help psuh
+----
+
+Your new command is undocumented! Let's fix that.
+
+Take a look at `Documentation/git-*.txt`. These are the manpages for the
+subcommands that Git knows about. You can open these up and take a look to get
+acquainted with the format, but then go ahead and make a new file
+`Documentation/git-psuh.txt`. Like with most of the documentation in the Git
+project, help pages are written with AsciiDoc (see CodingGuidelines, "Writing
+Documentation" section). Use the following template to fill out your own
+manpage:
+
+// Surprisingly difficult to embed AsciiDoc source within AsciiDoc.
+[listing]
+....
+git-psuh(1)
+===========
+
+NAME
+----
+git-psuh - Delight users' typo with a shy horse
+
+
+SYNOPSIS
+--------
+[verse]
+'git-psuh [<arg>...]'
+
+DESCRIPTION
+-----------
+...
+
+OPTIONS[[OPTIONS]]
+------------------
+...
+
+OUTPUT
+------
+...
+
+GIT
+---
+Part of the linkgit:git[1] suite
+....
+
+The most important pieces of this to note are the file header, underlined by =,
+the NAME section, and the SYNOPSIS, which would normally contain the grammar if
+your command took arguments. Try to use well-established manpage headers so your
+documentation is consistent with other Git and UNIX manpages; this makes life
+easier for your user, who can skip to the section they know contains the
+information they need.
+
+Now that you've written your manpage, you'll need to build it explicitly. We
+convert your AsciiDoc to troff which is man-readable like so:
+
+----
+$ make all doc
+$ man Documentation/git-psuh.1
+----
+
+or
+
+----
+$ make -C Documentation/ git-psuh.1
+$ man Documentation/git-psuh.1
+----
+
+NOTE: You may need to install the package `asciidoc` to get this to work.
+
+While this isn't as satisfying as running through `git help`, you can at least
+check that your help page looks right.
+
+You can also check that the documentation coverage is good (that is, the project
+sees that your command has been implemented as well as documented) by running
+`make check-docs` from the top-level.
+
+Go ahead and commit your new documentation change.
+
+[[add-usage]]
+=== Adding Usage Text
+
+Try and run `./bin-wrappers/git psuh -h`. Your command should crash at the end.
+That's because `-h` is a special case which your command should handle by
+printing usage.
+
+Take a look at `Documentation/technical/api-parse-options.txt`. This is a handy
+tool for pulling out options you need to be able to handle, and it takes a
+usage string.
+
+In order to use it, we'll need to prepare a NULL-terminated array of usage
+strings and a `builtin_psuh_options` array.
+
+Add a line to `#include "parse-options.h"`.
+
+At global scope, add your array of usage strings:
+
+----
+static const char * const psuh_usage[] = {
+ N_("git psuh [<arg>...]"),
+ NULL,
+};
+----
+
+Then, within your `cmd_psuh()` implementation, we can declare and populate our
+`option` struct. Ours is pretty boring but you can add more to it if you want to
+explore `parse_options()` in more detail:
+
+----
+ struct option options[] = {
+ OPT_END()
+ };
+----
+
+Finally, before you print your args and prefix, add the call to
+`parse-options()`:
+
+----
+ argc = parse_options(argc, argv, prefix, options, psuh_usage, 0);
+----
+
+This call will modify your `argv` parameter. It will strip the options you
+specified in `options` from `argv` and the locations pointed to from `options`
+entries will be updated. Be sure to replace your `argc` with the result from
+`parse_options()`, or you will be confused if you try to parse `argv` later.
+
+It's worth noting the special argument `--`. As you may be aware, many Unix
+commands use `--` to indicate "end of named parameters" - all parameters after
+the `--` are interpreted merely as positional arguments. (This can be handy if
+you want to pass as a parameter something which would usually be interpreted as
+a flag.) `parse_options()` will terminate parsing when it reaches `--` and give
+you the rest of the options afterwards, untouched.
+
+Build again. Now, when you run with `-h`, you should see your usage printed and
+your command terminated before anything else interesting happens. Great!
+
+Go ahead and commit this one, too.
+
+[[testing]]
+== Testing
+
+It's important to test your code - even for a little toy command like this one.
+Moreover, your patch won't be accepted into the Git tree without tests. Your
+tests should:
+
+* Illustrate the current behavior of the feature
+* Prove the current behavior matches the expected behavior
+* Ensure the externally-visible behavior isn't broken in later changes
+
+So let's write some tests.
+
+Related reading: `t/README`
+
+[[overview-test-structure]]
+=== Overview of Testing Structure
+
+The tests in Git live in `t/` and are named with a 4-digit decimal number using
+the schema shown in the Naming Tests section of `t/README`.
+
+[[write-new-test]]
+=== Writing Your Test
+
+Since this a toy command, let's go ahead and name the test with t9999. However,
+as many of the family/subcmd combinations are full, best practice seems to be
+to find a command close enough to the one you've added and share its naming
+space.
+
+Create a new file `t/t9999-psuh-tutorial.sh`. Begin with the header as so (see
+"Writing Tests" and "Source 'test-lib.sh'" in `t/README`):
+
+----
+#!/bin/sh
+
+test_description='git-psuh test
+
+This test runs git-psuh and makes sure it does not crash.'
+
+. ./test-lib.sh
+----
+
+Tests are framed inside of a `test_expect_success` in order to output TAP
+formatted results. Let's make sure that `git psuh` doesn't exit poorly and does
+mention the right animal somewhere:
+
+----
+test_expect_success 'runs correctly with no args and good output' '
+ git psuh >actual &&
+ test_i18ngrep Pony actual
+'
+----
+
+Indicate that you've run everything you wanted by adding the following at the
+bottom of your script:
+
+----
+test_done
+----
+
+Make sure you mark your test script executable:
+
+----
+$ chmod +x t/t9999-psuh-tutorial.sh
+----
+
+You can get an idea of whether you created your new test script successfully
+by running `make -C t test-lint`, which will check for things like test number
+uniqueness, executable bit, and so on.
+
+[[local-test]]
+=== Running Locally
+
+Let's try and run locally:
+
+----
+$ make
+$ cd t/ && prove t9999-psuh-tutorial.sh
+----
+
+You can run the full test suite and ensure `git-psuh` didn't break anything:
+
+----
+$ cd t/
+$ prove -j$(nproc) --shuffle t[0-9]*.sh
+----
+
+NOTE: You can also do this with `make test` or use any testing harness which can
+speak TAP. `prove` can run concurrently. `shuffle` randomizes the order the
+tests are run in, which makes them resilient against unwanted inter-test
+dependencies. `prove` also makes the output nicer.
+
+Go ahead and commit this change, as well.
+
+[[ready-to-share]]
+== Getting Ready to Share
+
+You may have noticed already that the Git project performs its code reviews via
+emailed patches, which are then applied by the maintainer when they are ready
+and approved by the community. The Git project does not accept patches from
+pull requests, and the patches emailed for review need to be formatted a
+specific way. At this point the tutorial diverges, in order to demonstrate two
+different methods of formatting your patchset and getting it reviewed.
+
+The first method to be covered is GitGitGadget, which is useful for those
+already familiar with GitHub's common pull request workflow. This method
+requires a GitHub account.
+
+The second method to be covered is `git send-email`, which can give slightly
+more fine-grained control over the emails to be sent. This method requires some
+setup which can change depending on your system and will not be covered in this
+tutorial.
+
+Regardless of which method you choose, your engagement with reviewers will be
+the same; the review process will be covered after the sections on GitGitGadget
+and `git send-email`.
+
+[[howto-ggg]]
+== Sending Patches via GitGitGadget
+
+One option for sending patches is to follow a typical pull request workflow and
+send your patches out via GitGitGadget. GitGitGadget is a tool created by
+Johannes Schindelin to make life as a Git contributor easier for those used to
+the GitHub PR workflow. It allows contributors to open pull requests against its
+mirror of the Git project, and does some magic to turn the PR into a set of
+emails and send them out for you. It also runs the Git continuous integration
+suite for you. It's documented at http://gitgitgadget.github.io.
+
+[[create-fork]]
+=== Forking `git/git` on GitHub
+
+Before you can send your patch off to be reviewed using GitGitGadget, you will
+need to fork the Git project and upload your changes. First thing - make sure
+you have a GitHub account.
+
+Head to the https://github.com/git/git[GitHub mirror] and look for the Fork
+button. Place your fork wherever you deem appropriate and create it.
+
+[[upload-to-fork]]
+=== Uploading to Your Own Fork
+
+To upload your branch to your own fork, you'll need to add the new fork as a
+remote. You can use `git remote -v` to show the remotes you have added already.
+From your new fork's page on GitHub, you can press "Clone or download" to get
+the URL; then you need to run the following to add, replacing your own URL and
+remote name for the examples provided:
+
+----
+$ git remote add remotename git@github.com:remotename/git.git
+----
+
+or to use the HTTPS URL:
+
+----
+$ git remote add remotename https://github.com/remotename/git/.git
+----
+
+Run `git remote -v` again and you should see the new remote showing up.
+`git fetch remotename` (with the real name of your remote replaced) in order to
+get ready to push.
+
+Next, double-check that you've been doing all your development in a new branch
+by running `git branch`. If you didn't, now is a good time to move your new
+commits to their own branch.
+
+As mentioned briefly at the beginning of this document, we are basing our work
+on `master`, so go ahead and update as shown below, or using your preferred
+workflow.
+
+----
+$ git checkout master
+$ git pull -r
+$ git rebase master psuh
+----
+
+Finally, you're ready to push your new topic branch! (Due to our branch and
+command name choices, be careful when you type the command below.)
+
+----
+$ git push remotename psuh
+----
+
+Now you should be able to go and check out your newly created branch on GitHub.
+
+[[send-pr-ggg]]
+=== Sending a PR to GitGitGadget
+
+In order to have your code tested and formatted for review, you need to start by
+opening a Pull Request against `gitgitgadget/git`. Head to
+https://github.com/gitgitgadget/git and open a PR either with the "New pull
+request" button or the convenient "Compare & pull request" button that may
+appear with the name of your newly pushed branch.
+
+Review the PR's title and description, as it's used by GitGitGadget as the cover
+letter for your change. When you're happy, submit your pull request.
+
+[[run-ci-ggg]]
+=== Running CI and Getting Ready to Send
+
+If it's your first time using GitGitGadget (which is likely, as you're using
+this tutorial) then someone will need to give you permission to use the tool.
+As mentioned in the GitGitGadget documentation, you just need someone who
+already uses it to comment on your PR with `/allow <username>`. GitGitGadget
+will automatically run your PRs through the CI even without the permission given
+but you will not be able to `/submit` your changes until someone allows you to
+use the tool.
+
+If the CI fails, you can update your changes with `git rebase -i` and push your
+branch again:
+
+----
+$ git push -f remotename psuh
+----
+
+In fact, you should continue to make changes this way up until the point when
+your patch is accepted into `next`.
+
+////
+TODO https://github.com/gitgitgadget/gitgitgadget/issues/83
+It'd be nice to be able to verify that the patch looks good before sending it
+to everyone on Git mailing list.
+[[check-work-ggg]]
+=== Check Your Work
+////
+
+[[send-mail-ggg]]
+=== Sending Your Patches
+
+Now that your CI is passing and someone has granted you permission to use
+GitGitGadget with the `/allow` command, sending out for review is as simple as
+commenting on your PR with `/submit`.
+
+[[responding-ggg]]
+=== Updating With Comments
+
+Skip ahead to <<reviewing,Responding to Reviews>> for information on how to
+reply to review comments you will receive on the mailing list.
+
+Once you have your branch again in the shape you want following all review
+comments, you can submit again:
+
+----
+$ git push -f remotename psuh
+----
+
+Next, go look at your pull request against GitGitGadget; you should see the CI
+has been kicked off again. Now while the CI is running is a good time for you
+to modify your description at the top of the pull request thread; it will be
+used again as the cover letter. You should use this space to describe what
+has changed since your previous version, so that your reviewers have some idea
+of what they're looking at. When the CI is done running, you can comment once
+more with `/submit` - GitGitGadget will automatically add a v2 mark to your
+changes.
+
+[[howto-git-send-email]]
+== Sending Patches with `git send-email`
+
+If you don't want to use GitGitGadget, you can also use Git itself to mail your
+patches. Some benefits of using Git this way include finer grained control of
+subject line (for example, being able to use the tag [RFC PATCH] in the subject)
+and being able to send a ``dry run'' mail to yourself to ensure it all looks
+good before going out to the list.
+
+[[setup-git-send-email]]
+=== Prerequisite: Setting Up `git send-email`
+
+Configuration for `send-email` can vary based on your operating system and email
+provider, and so will not be covered in this tutorial, beyond stating that in
+many distributions of Linux, `git-send-email` is not packaged alongside the
+typical `git` install. You may need to install this additional package; there
+are a number of resources online to help you do so. You will also need to
+determine the right way to configure it to use your SMTP server; again, as this
+configuration can change significantly based on your system and email setup, it
+is out of scope for the context of this tutorial.
+
+[[format-patch]]
+=== Preparing Initial Patchset
+
+Sending emails with Git is a two-part process; before you can prepare the emails
+themselves, you'll need to prepare the patches. Luckily, this is pretty simple:
+
+----
+$ git format-patch --cover-letter -o psuh/ master..psuh
+----
+
+The `--cover-letter` parameter tells `format-patch` to create a cover letter
+template for you. You will need to fill in the template before you're ready
+to send - but for now, the template will be next to your other patches.
+
+The `-o psuh/` parameter tells `format-patch` to place the patch files into a
+directory. This is useful because `git send-email` can take a directory and
+send out all the patches from there.
+
+`master..psuh` tells `format-patch` to generate patches for the difference
+between `master` and `psuh`. It will make one patch file per commit. After you
+run, you can go have a look at each of the patches with your favorite text
+editor and make sure everything looks alright; however, it's not recommended to
+make code fixups via the patch file. It's a better idea to make the change the
+normal way using `git rebase -i` or by adding a new commit than by modifying a
+patch.
+
+NOTE: Optionally, you can also use the `--rfc` flag to prefix your patch subject
+with ``[RFC PATCH]'' instead of ``[PATCH]''. RFC stands for ``request for
+comments'' and indicates that while your code isn't quite ready for submission,
+you'd like to begin the code review process. This can also be used when your
+patch is a proposal, but you aren't sure whether the community wants to solve
+the problem with that approach or not - to conduct a sort of design review. You
+may also see on the list patches marked ``WIP'' - this means they are incomplete
+but want reviewers to look at what they have so far. You can add this flag with
+`--subject-prefix=WIP`.
+
+Check and make sure that your patches and cover letter template exist in the
+directory you specified - you're nearly ready to send out your review!
+
+[[cover-letter]]
+=== Preparing Email
+
+In addition to an email per patch, the Git community also expects your patches
+to come with a cover letter, typically with a subject line [PATCH 0/x] (where
+x is the number of patches you're sending). Since you invoked `format-patch`
+with `--cover-letter`, you've already got a template ready. Open it up in your
+favorite editor.
+
+You should see a number of headers present already. Check that your `From:`
+header is correct. Then modify your `Subject:` to something which succinctly
+covers the purpose of your entire topic branch, for example:
+
+----
+Subject: [PATCH 0/7] adding the 'psuh' command
+----
+
+Make sure you retain the ``[PATCH 0/X]'' part; that's what indicates to the Git
+community that this email is the beginning of a review, and many reviewers
+filter their email for this type of flag.
+
+You'll need to add some extra parameters when you invoke `git send-email` to add
+the cover letter.
+
+Next you'll have to fill out the body of your cover letter. This is an important
+component of change submission as it explains to the community from a high level
+what you're trying to do, and why, in a way that's more apparent than just
+looking at your diff. Be sure to explain anything your diff doesn't make clear
+on its own.
+
+Here's an example body for `psuh`:
+
+----
+Our internal metrics indicate widespread interest in the command
+git-psuh - that is, many users are trying to use it, but finding it is
+unavailable, using some unknown workaround instead.
+
+The following handful of patches add the psuh command and implement some
+handy features on top of it.
+
+This patchset is part of the MyFirstContribution tutorial and should not
+be merged.
+----
+
+The template created by `git format-patch --cover-letter` includes a diffstat.
+This gives reviewers a summary of what they're in for when reviewing your topic.
+The one generated for `psuh` from the sample implementation looks like this:
+
+----
+ Documentation/git-psuh.txt | 40 +++++++++++++++++++++
+ Makefile | 1 +
+ builtin.h | 1 +
+ builtin/psuh.c | 73 ++++++++++++++++++++++++++++++++++++++
+ git.c | 1 +
+ t/t9999-psuh-tutorial.sh | 12 +++++++
+ 6 files changed, 128 insertions(+)
+ create mode 100644 Documentation/git-psuh.txt
+ create mode 100644 builtin/psuh.c
+ create mode 100755 t/t9999-psuh-tutorial.sh
+----
+
+Finally, the letter will include the version of Git used to generate the
+patches. You can leave that string alone.
+
+[[sending-git-send-email]]
+=== Sending Email
+
+At this point you should have a directory `psuh/` which is filled with your
+patches and a cover letter. Time to mail it out! You can send it like this:
+
+----
+$ git send-email --to=target@example.com psuh/*.patch
+----
+
+NOTE: Check `git help send-email` for some other options which you may find
+valuable, such as changing the Reply-to address or adding more CC and BCC lines.
+
+NOTE: When you are sending a real patch, it will go to git@vger.kernel.org - but
+please don't send your patchset from the tutorial to the real mailing list! For
+now, you can send it to yourself, to make sure you understand how it will look.
+
+After you run the command above, you will be presented with an interactive
+prompt for each patch that's about to go out. This gives you one last chance to
+edit or quit sending something (but again, don't edit code this way). Once you
+press `y` or `a` at these prompts your emails will be sent! Congratulations!
+
+Awesome, now the community will drop everything and review your changes. (Just
+kidding - be patient!)
+
+[[v2-git-send-email]]
+=== Sending v2
+
+Skip ahead to <<reviewing,Responding to Reviews>> for information on how to
+handle comments from reviewers. Continue this section when your topic branch is
+shaped the way you want it to look for your patchset v2.
+
+When you're ready with the next iteration of your patch, the process is fairly
+similar.
+
+First, generate your v2 patches again:
+
+----
+$ git format-patch -v2 --cover-letter -o psuh/ master..psuh
+----
+
+This will add your v2 patches, all named like `v2-000n-my-commit-subject.patch`,
+to the `psuh/` directory. You may notice that they are sitting alongside the v1
+patches; that's fine, but be careful when you are ready to send them.
+
+Edit your cover letter again. Now is a good time to mention what's different
+between your last version and now, if it's something significant. You do not
+need the exact same body in your second cover letter; focus on explaining to
+reviewers the changes you've made that may not be as visible.
+
+You will also need to go and find the Message-Id of your previous cover letter.
+You can either note it when you send the first series, from the output of `git
+send-email`, or you can look it up on the
+https://public-inbox.org/git[mailing list]. Find your cover letter in the
+archives, click on it, then click "permalink" or "raw" to reveal the Message-Id
+header. It should match:
+
+----
+Message-Id: <foo.12345.author@example.com>
+----
+
+Your Message-Id is `<foo.12345.author@example.com>`. This example will be used
+below as well; make sure to replace it with the correct Message-Id for your
+**previous cover letter** - that is, if you're sending v2, use the Message-Id
+from v1; if you're sending v3, use the Message-Id from v2.
+
+While you're looking at the email, you should also note who is CC'd, as it's
+common practice in the mailing list to keep all CCs on a thread. You can add
+these CC lines directly to your cover letter with a line like so in the header
+(before the Subject line):
+
+----
+CC: author@example.com, Othe R <other@example.com>
+----
+
+Now send the emails again, paying close attention to which messages you pass in
+to the command:
+
+----
+$ git send-email --to=target@example.com
+ --in-reply-to="<foo.12345.author@example.com>"
+ psuh/v2*
+----
+
+[[single-patch]]
+=== Bonus Chapter: One-Patch Changes
+
+In some cases, your very small change may consist of only one patch. When that
+happens, you only need to send one email. Your commit message should already be
+meaningful and explain at a high level the purpose (what is happening and why)
+of your patch, but if you need to supply even more context, you can do so below
+the `---` in your patch. Take the example below, which was generated with `git
+format-patch` on a single commit, and then edited to add the content between
+the `---` and the diffstat.
+
+----
+From 1345bbb3f7ac74abde040c12e737204689a72723 Mon Sep 17 00:00:00 2001
+From: A U Thor <author@example.com>
+Date: Thu, 18 Apr 2019 15:11:02 -0700
+Subject: [PATCH] README: change the grammar
+
+I think it looks better this way. This part of the commit message will
+end up in the commit-log.
+
+Signed-off-by: A U Thor <author@example.com>
+---
+Let's have a wild discussion about grammar on the mailing list. This
+part of my email will never end up in the commit log. Here is where I
+can add additional context to the mailing list about my intent, outside
+of the context of the commit log. This section was added after `git
+format-patch` was run, by editing the patch file in a text editor.
+
+ README.md | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/README.md b/README.md
+index 88f126184c..38da593a60 100644
+--- a/README.md
++++ b/README.md
+@@ -3,7 +3,7 @@
+ Git - fast, scalable, distributed revision control system
+ =========================================================
+
+-Git is a fast, scalable, distributed revision control system with an
++Git is a fast, scalable, and distributed revision control system with an
+ unusually rich command set that provides both high-level operations
+ and full access to internals.
+
+--
+2.21.0.392.gf8f6787159e-goog
+----
+
+[[now-what]]
+== My Patch Got Emailed - Now What?
+
+[[reviewing]]
+=== Responding to Reviews
+
+After a few days, you will hopefully receive a reply to your patchset with some
+comments. Woohoo! Now you can get back to work.
+
+It's good manners to reply to each comment, notifying the reviewer that you have
+made the change requested, feel the original is better, or that the comment
+inspired you to do something a new way which is superior to both the original
+and the suggested change. This way reviewers don't need to inspect your v2 to
+figure out whether you implemented their comment or not.
+
+If you are going to push back on a comment, be polite and explain why you feel
+your original is better; be prepared that the reviewer may still disagree with
+you, and the rest of the community may weigh in on one side or the other. As
+with all code reviews, it's important to keep an open mind to doing something a
+different way than you originally planned; other reviewers have a different
+perspective on the project than you do, and may be thinking of a valid side
+effect which had not occurred to you. It is always okay to ask for clarification
+if you aren't sure why a change was suggested, or what the reviewer is asking
+you to do.
+
+Make sure your email client has a plaintext email mode and it is turned on; the
+Git list rejects HTML email. Please also follow the mailing list etiquette
+outlined in the
+https://kernel.googlesource.com/pub/scm/git/git/+/todo/MaintNotes[Maintainer's
+Note], which are similar to etiquette rules in most open source communities
+surrounding bottom-posting and inline replies.
+
+When you're making changes to your code, it is cleanest - that is, the resulting
+commits are easiest to look at - if you use `git rebase -i` (interactive
+rebase). Take a look at this
+https://www.oreilly.com/library/view/git-pocket-guide/9781449327507/ch10.html[overview]
+from O'Reilly. The general idea is to modify each commit which requires changes;
+this way, instead of having a patch A with a mistake, a patch B which was fine
+and required no upstream reviews in v1, and a patch C which fixes patch A for
+v2, you can just ship a v2 with a correct patch A and correct patch B. This is
+changing history, but since it's local history which you haven't shared with
+anyone, that is okay for now! (Later, it may not make sense to do this; take a
+look at the section below this one for some context.)
+
+[[after-approval]]
+=== After Review Approval
+
+The Git project has four integration branches: `pu`, `next`, `master`, and
+`maint`. Your change will be placed into `pu` fairly early on by the maintainer
+while it is still in the review process; from there, when it is ready for wider
+testing, it will be merged into `next`. Plenty of early testers use `next` and
+may report issues. Eventually, changes in `next` will make it to `master`,
+which is typically considered stable. Finally, when a new release is cut,
+`maint` is used to base bugfixes onto. As mentioned at the beginning of this
+document, you can read `Documents/SubmittingPatches` for some more info about
+the use of the various integration branches.
+
+Back to now: your code has been lauded by the upstream reviewers. It is perfect.
+It is ready to be accepted. You don't need to do anything else; the maintainer
+will merge your topic branch to `next` and life is good.
+
+However, if you discover it isn't so perfect after this point, you may need to
+take some special steps depending on where you are in the process.
+
+If the maintainer has announced in the "What's cooking in git.git" email that
+your topic is marked for `next` - that is, that they plan to merge it to `next`
+but have not yet done so - you should send an email asking the maintainer to
+wait a little longer: "I've sent v4 of my series and you marked it for `next`,
+but I need to change this and that - please wait for v5 before you merge it."
+
+If the topic has already been merged to `next`, rather than modifying your
+patches with `git rebase -i`, you should make further changes incrementally -
+that is, with another commit, based on top of the maintainer's topic branch as
+detailed in https://github.com/gitster/git. Your work is still in the same topic
+but is now incremental, rather than a wholesale rewrite of the topic branch.
+
+The topic branches in the maintainer's GitHub are mirrored in GitGitGadget, so
+if you're sending your reviews out that way, you should be sure to open your PR
+against the appropriate GitGitGadget/Git branch.
+
+If you're using `git send-email`, you can use it the same way as before, but you
+should generate your diffs from `<topic>..<mybranch>` and base your work on
+`<topic>` instead of `master`.
diff --git a/Documentation/RelNotes/2.23.0.txt b/Documentation/RelNotes/2.23.0.txt
new file mode 100644
index 0000000..8268355
--- /dev/null
+++ b/Documentation/RelNotes/2.23.0.txt
@@ -0,0 +1,349 @@
+Git 2.23 Release Notes
+======================
+
+Updates since v2.22
+-------------------
+
+Backward compatibility note
+
+ * The "--base" option of "format-patch" computed the patch-ids for
+ prerequisite patches in an unstable way, which has been updated to
+ compute in a way that is compatible with "git patch-id --stable".
+
+
+UI, Workflows & Features
+
+ * The "git fast-export/import" pair has been taught to handle commits
+ with log messages in encoding other than UTF-8 better.
+
+ * In recent versions of Git, per-worktree refs are exposed in
+ refs/worktrees/<wtname>/ hierarchy, which means that worktree names
+ must be a valid refname component. The code now sanitizes the names
+ given to worktrees, to make sure these refs are well-formed.
+
+ * "git merge" learned "--quit" option that cleans up the in-progress
+ merge while leaving the working tree and the index still in a mess.
+
+ * "git format-patch" learns a configuration to set the default for
+ its --notes=<ref> option.
+
+ * The code to show args with potential typo that cannot be
+ interpreted as a commit-ish has been improved.
+
+ * "git clone --recurse-submodules" learned to set up the submodules
+ to ignore commit object names recorded in the superproject gitlink
+ and instead use the commits that happen to be at the tip of the
+ remote-tracking branches from the get-go, by passing the new
+ "--remote-submodules" option.
+
+ * The pattern "git diff/grep" use to extract funcname and words
+ boundary for Matlab has been extend to cover Octave, which is more
+ or less equivalent.
+
+ * "git help git" was hard to discover (well, at least for some
+ people).
+
+ * The pattern "git diff/grep" use to extract funcname and words
+ boundary for Rust has been added.
+
+ * "git status" can be told a non-standard default value for the
+ "--[no-]ahead-behind" option with a new configuration variable
+ status.aheadBehind.
+
+ * "git fetch" and "git pull" reports when a fetch results in
+ non-fast-forward updates to let the user notice unusual situation.
+ The commands learned "--no-shown-forced-updates" option to disable
+ this safety feature.
+
+ * Two new commands "git switch" and "git restore" are introduced to
+ split "checking out a branch to work on advancing its history" and
+ "checking out paths out of the index and/or a tree-ish to work on
+ advancing the current history" out of the single "git checkout"
+ command.
+
+ * "git branch --list" learned to always output the detached HEAD as
+ the first item (when the HEAD is detached, of course), regardless
+ of the locale.
+
+ * The conditional inclusion mechanism learned to base the choice on
+ the branch the HEAD currently is on.
+
+ * "git rev-list --objects" learned with "--no-object-names" option to
+ squelch the path to the object that is used as a grouping hint for
+ pack-objects.
+
+ * A new tag.gpgSign configuration variable turns "git tag -a" into
+ "git tag -s".
+
+ * "git multi-pack-index" learned expire and repack subcommands.
+
+ * "git blame" learned to "ignore" commits in the history, whose
+ effects (as well as their presence) get ignored.
+
+ * "git cherry-pick/revert" learned a new "--skip" action.
+
+ * The tips of refs from the alternate object store can be used as
+ starting point for reachability computation now.
+
+ * Extra blank lines in "git status" output have been reduced.
+
+ * The commits in a repository can be described by multiple
+ commit-graph files now, which allows the commit-graph files to be
+ updated incrementally.
+
+
+Performance, Internal Implementation, Development Support etc.
+
+ * Update supporting parts of "git rebase" to remove code that should
+ no longer be used.
+
+ * Developer support to emulate unsatisfied prerequisites in tests to
+ ensure that the remainer of the tests still succeeds when tests
+ with prerequisites are skipped.
+
+ * "git update-server-info" learned not to rewrite the file with the
+ same contents.
+
+ * The way of specifying the path to find dynamic libraries at runtime
+ has been simplified. The old default to pass -R/path/to/dir has been
+ replaced with the new default to pass -Wl,-rpath,/path/to/dir,
+ which is the more recent GCC uses. Those who need to build with an
+ old GCC can still use "CC_LD_DYNPATH=-R"
+
+ * Prepare use of reachability index in topological walker that works
+ on a range (A..B).
+
+ * A new tutorial targetting specifically aspiring git-core
+ developers has been added.
+
+ * Auto-detect how to tell HP-UX aCC where to use dynamically linked
+ libraries from at runtime.
+
+ * "git mergetool" and its tests now spawn fewer subprocesses.
+
+ * Dev support update to help tracing out tests.
+
+ * Support to build with MSVC has been updated.
+
+ * "git fetch" that grabs from a group of remotes learned to run the
+ auto-gc only once at the very end.
+
+ * A handful of Windows build patches have been upstreamed.
+
+ * The code to read state files used by the sequencer machinery for
+ "git status" has been made more robust against a corrupt or stale
+ state files.
+
+ * "git for-each-ref" with multiple patterns have been optimized.
+
+ * The tree-walk API learned to pass an in-core repository
+ instance throughout more codepaths.
+
+ * When one step in multi step cherry-pick or revert is reset or
+ committed, the command line prompt script failed to notice the
+ current status, which has been improved.
+
+
+Fixes since v2.22
+-----------------
+
+ * A relative pathname given to "git init --template=<path> <repo>"
+ ought to be relative to the directory "git init" gets invoked in,
+ but it instead was made relative to the repository, which has been
+ corrected.
+ (merge e1df7fe43f nd/init-relative-template-fix later to maint).
+
+ * "git worktree add" used to fail when another worktree connected to
+ the same repository was corrupt, which has been corrected.
+ (merge 105df73e71 nd/corrupt-worktrees later to maint).
+
+ * The ownership rule for the file descriptor to fast-import remote
+ backend was mixed up, leading to unrelated file descriptor getting
+ closed, which has been fixed.
+ (merge 3203566a71 mh/import-transport-fd-fix later to maint).
+
+ * A "merge -c" instruction during "git rebase --rebase-merges" should
+ give the user a chance to edit the log message, even when there is
+ otherwise no need to create a new merge and replace the existing
+ one (i.e. fast-forward instead), but did not. Which has been
+ corrected.
+
+ * Code cleanup and futureproof.
+ (merge 31f5256c82 ds/object-info-for-prefetch-fix later to maint).
+
+ * More parameter validation.
+ (merge de99eb0c24 es/grep-require-name-when-needed later to maint).
+
+ * "git update-server-info" used to leave stale packfiles in its
+ output, which has been corrected.
+ (merge e941c48d49 ew/server-info-remove-crufts later to maint).
+
+ * The server side support for "git fetch" used to show incorrect
+ value for the HEAD symbolic ref when the namespace feature is in
+ use, which has been corrected.
+ (merge 533e088250 jk/HEAD-symref-in-xfer-namespaces later to maint).
+
+ * "git am -i --resolved" segfaulted after trying to see a commit as
+ if it were a tree, which has been corrected.
+ (merge 7663e438c5 jk/am-i-resolved-fix later to maint).
+
+ * "git bundle verify" needs to see if prerequisite objects exist in
+ the receiving repository, but the command did not check if we are
+ in a repository upfront, which has been corrected.
+ (merge 3bbbe467f2 js/bundle-verify-require-object-store later to maint).
+
+ * "git merge --squash" is designed to update the working tree and the
+ index without creating the commit, and this cannot be countermanded
+ by adding the "--commit" option; the command now refuses to work
+ when both options are given.
+ (merge 1d14d0c994 vv/merge-squash-with-explicit-commit later to maint).
+
+ * The data collected by fsmonitor was not properly written back to
+ the on-disk index file, breaking t7519 tests occasionally, which
+ has been corrected.
+ (merge b5a8169752 js/fsmonitor-unflake later to maint).
+
+ * Update to Unicode 12.1 width table.
+ (merge 5817f9caa3 bb/unicode-12.1-reiwa later to maint).
+
+ * The command line to invoke a "git cat-file" command from inside
+ "git p4" was not properly quoted to protect a caret and running a
+ broken command on Windows, which has been corrected.
+ (merge c3f2358de3 mm/p4-unshelve-windows-fix later to maint).
+
+ * "git request-pull" learned to warn when the ref we ask them to pull
+ from in the local repository and in the published repository are
+ different.
+ (merge 0454220d66 pb/request-pull-verify-remote-ref later to maint).
+
+ * When creating a partial clone, the object filtering criteria is
+ recorded for the origin of the clone, but this incorrectly used a
+ hardcoded name "origin" to name that remote; it has been corrected
+ to honor the "--origin <name>" option.
+ (merge 1c4a9f9114 xl/record-partial-clone-origin later to maint).
+
+ * "git fetch" into a lazy clone forgot to fetch base objects that are
+ necessary to complete delta in a thin packfile, which has been
+ corrected.
+ (merge 810e19322d jt/partial-clone-missing-ref-delta-base later to maint).
+
+ * The filter_data used in the list-objects-filter (which manages a
+ lazily sparse clone repository) did not use the dynamic array API
+ correctly---'nr' is supposed to point at one past the last element
+ of the array in use. This has been corrected.
+ (merge 7140600e2e md/list-objects-filter-memfix later to maint).
+
+ * The description about slashes in gitignore patterns (used to
+ indicate things like "anchored to this level only" and "only
+ matches directories") has been revamped.
+ (merge 1a58bad014 an/ignore-doc-update later to maint).
+
+ * The URL decoding code has been updated to avoid going past the end
+ of the string while parsing %-<hex>-<hex> sequence.
+ (merge d37dc239a4 md/url-parse-harden later to maint).
+
+ * The list of for-each like macros used by clang-format has been
+ updated.
+ (merge fc7e03aace mo/clang-format-for-each-update later to maint).
+
+ * "git branch --list" learned to show branches that are checked out
+ in other worktrees connected to the same repository prefixed with
+ '+', similar to the way the currently checked out branch is shown
+ with '*' in front.
+ (merge 6e9381469e nb/branch-show-other-worktrees-head later to maint).
+
+ * Code restructuring during 2.20 period broke fetching tags via
+ "import" based transports.
+ (merge f80d922355 fc/fetch-with-import-fix later to maint).
+
+ * The commit-graph file is now part of the "files that the runtime
+ may keep open file descriptors on, all of which would need to be
+ closed when done with the object store", and the file descriptor to
+ an existing commit-graph file now is closed before "gc" finalizes a
+ new instance to replace it.
+ (merge 2d511cfc0b ds/close-object-store later to maint).
+
+ * "git checkout -p" needs to selectively apply a patch in reverse,
+ which did not work well.
+ (merge 2bd69b9024 pw/add-p-recount later to maint).
+
+ * Code clean-up to avoid signed integer wraparounds during binary search.
+ (merge 568a05c5ec rs/avoid-overflow-in-midpoint-computation later to maint).
+
+ * "git interpret-trailers" always treated '#' as the comment
+ character, regardless of core.commentChar setting, which has been
+ corrected.
+ (merge 29c83fc23f jk/trailers-use-config later to maint).
+
+ * "git stash show 23" used to work, but no more after getting
+ rewritten in C; this regression has been corrected.
+ (merge 63b50c8ffe tg/stash-ref-by-index-fix later to maint).
+
+ * "git rebase --abort" used to leave refs/rewritten/ when concluding
+ "git rebase -r", which has been corrected.
+ (merge d559f502c5 pw/rebase-abort-clean-rewritten later to maint).
+
+ * An incorrect list of options was cached after command line
+ completion failed (e.g. trying to complete a command that requires
+ a repository outside one), which has been corrected.
+ (merge 69702523af nd/completion-no-cache-failure later to maint).
+
+ * The code to parse scaled numbers out of configuration files has
+ been made more robust and also easier to follow.
+ (merge 39c575c969 rs/config-unit-parsing later to maint).
+
+ * The codepath to compute delta islands used to spew progress output
+ without giving the callers any way to squelch it, which has been
+ fixed.
+ (merge bdbdf42f8a jk/delta-islands-progress-fix later to maint).
+
+ * Protocol capabilities that go over wire should never be translated,
+ but it was incorrectly marked for translation, which has been
+ corrected. The output of protocol capabilities for debugging has
+ been tweaked a bit.
+
+ * Use "Erase in Line" CSI sequence that is already used in the editor
+ support to clear cruft in the progress output.
+ (merge 5b12e3123b sg/rebase-progress later to maint).
+
+ * "git submodule foreach" did not protect command line options passed
+ to the command to be run in each submodule correctly, when the
+ "--recursive" option was in use.
+ (merge 30db18b148 ms/submodule-foreach-fix later to maint).
+
+ * The configuration variable rebase.rescheduleFailedExec should be
+ effective only while running an interactive rebase and should not
+ affect anything when running an non-interactive one, which was not
+ the case. This has been corrected.
+ (merge 906b63942a js/rebase-reschedule-applies-only-to-interactive later to maint).
+
+ * The "git clone" documentation refers to command line options in its
+ description in the short form; they have been replaced with long
+ forms to make them more recognisable.
+ (merge bfc8c84ed5 qn/clone-doc-use-long-form later to maint).
+
+ * Generation of pack bitmaps are now disabled when .keep files exist,
+ as these are mutually exclusive features.
+ (merge 7328482253 ew/repack-with-bitmaps-by-default later to maint).
+
+ * Other code cleanup, docfix, build fix, etc.
+ (merge f547101b26 es/git-debugger-doc later to maint).
+ (merge 7877ac3d7b js/bisect-helper-check-get-oid-return-value later to maint).
+ (merge 0108f47eb3 sw/git-p4-unshelve-branched-files later to maint).
+ (merge 9df8f734fd cm/send-email-document-req-modules later to maint).
+ (merge afc3bf6eb1 ab/hash-object-doc later to maint).
+ (merge 1fde99cfc7 po/doc-branch later to maint).
+ (merge 459842e1c2 dl/config-alias-doc later to maint).
+ (merge 5d137fc2c7 cb/fsmonitor-intfix later to maint).
+ (merge 921d49be86 rs/copy-array later to maint).
+ (merge cc8d872e69 js/t3404-typofix later to maint).
+ (merge 729a9b558b cb/mkstemps-uint-type-fix later to maint).
+ (merge 9dae4fe79f js/gcc-8-and-9 later to maint).
+ (merge ed33bd8f30 js/t0001-case-insensitive later to maint).
+ (merge dfa880e336 jw/gitweb-sample-update later to maint).
+ (merge e532a90a9f sg/t5551-fetch-smart-error-is-translated later to maint).
+ (merge 8d45ad8c29 jt/t5551-test-chunked later to maint).
+ (merge 1a64e07d23 sg/git-C-empty-doc later to maint).
+ (merge 37a2e35395 sg/ci-brew-gcc-workaround later to maint).
+ (merge 24df0d49c4 js/trace2-signo-typofix later to maint).
+ (merge fbec05c210 cc/test-oidmap later to maint).
diff --git a/Documentation/blame-options.txt b/Documentation/blame-options.txt
index dc41957..5d122db 100644
--- a/Documentation/blame-options.txt
+++ b/Documentation/blame-options.txt
@@ -110,5 +110,24 @@ commit. And the default value is 40. If there are more than one
`-C` options given, the <num> argument of the last `-C` will
take effect.
+--ignore-rev <rev>::
+ Ignore changes made by the revision when assigning blame, as if the
+ change never happened. Lines that were changed or added by an ignored
+ commit will be blamed on the previous commit that changed that line or
+ nearby lines. This option may be specified multiple times to ignore
+ more than one revision. If the `blame.markIgnoredLines` config option
+ is set, then lines that were changed by an ignored commit and attributed to
+ another commit will be marked with a `?` in the blame output. If the
+ `blame.markUnblamableLines` config option is set, then those lines touched
+ by an ignored commit that we could not attribute to another revision are
+ marked with a '*'.
+
+--ignore-revs-file <file>::
+ Ignore revisions listed in `file`, which must be in the same format as an
+ `fsck.skipList`. This option may be repeated, and these files will be
+ processed after any files specified with the `blame.ignoreRevsFile` config
+ option. An empty file name, `""`, will clear the list of revs from
+ previously processed files.
+
-h::
Show help message.
diff --git a/Documentation/config.txt b/Documentation/config.txt
index 7e2a6f6..e3f5bc3 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -144,6 +144,20 @@ refer to linkgit:gitignore[5] for details. For convenience:
This is the same as `gitdir` except that matching is done
case-insensitively (e.g. on case-insensitive file sytems)
+`onbranch`::
+ The data that follows the keyword `onbranch:` is taken to be a
+ pattern with standard globbing wildcards and two additional
+ ones, `**/` and `/**`, that can match multiple path components.
+ If we are in a worktree where the name of the branch that is
+ currently checked out matches the pattern, the include condition
+ is met.
++
+If the pattern ends with `/`, `**` will be automatically added. For
+example, the pattern `foo/` becomes `foo/**`. In other words, it matches
+all branches that begin with `foo/`. This is useful if your branches are
+organized hierarchically and you would like to apply a configuration to
+all the branches in that hierarchy.
+
A few more notes on matching via `gitdir` and `gitdir/i`:
* Symlinks in `$GIT_DIR` are not resolved before matching.
@@ -206,6 +220,11 @@ Example
[includeIf "gitdir:/path/to/group/"]
path = foo.inc
+ ; include only if we are in a worktree where foo-branch is
+ ; currently checked out
+ [includeIf "onbranch:foo-branch"]
+ path = foo.inc
+
Values
~~~~~~
diff --git a/Documentation/config/advice.txt b/Documentation/config/advice.txt
index ec4f6ae..6aaa360 100644
--- a/Documentation/config/advice.txt
+++ b/Documentation/config/advice.txt
@@ -4,6 +4,10 @@ advice.*::
can tell Git that you do not need help by setting these to 'false':
+
--
+ fetchShowForcedUpdates::
+ Advice shown when linkgit:git-fetch[1] takes a long time
+ to calculate forced updates after ref updates, or to warn
+ that the check is disabled.
pushUpdateRejected::
Set this variable to 'false' if you want to disable
'pushNonFFCurrent',
@@ -37,12 +41,19 @@ advice.*::
we can still suggest that the user push to either
refs/heads/* or refs/tags/* based on the type of the
source object.
+ statusAheadBehind::
+ Shown when linkgit:git-status[1] computes the ahead/behind
+ counts for a local ref compared to its remote tracking ref,
+ and that calculation takes longer than expected. Will not
+ appear if `status.aheadBehind` is false or the option
+ `--no-ahead-behind` is given.
statusHints::
Show directions on how to proceed from the current
state in the output of linkgit:git-status[1], in
the template shown when writing commit messages in
linkgit:git-commit[1], and in the help message shown
- by linkgit:git-checkout[1] when switching branch.
+ by linkgit:git-switch[1] or
+ linkgit:git-checkout[1] when switching branch.
statusUoption::
Advise to consider using the `-u` option to linkgit:git-status[1]
when the command takes more than 2 seconds to enumerate untracked
@@ -57,17 +68,21 @@ advice.*::
resolveConflict::
Advice shown by various commands when conflicts
prevent the operation from being performed.
+ sequencerInUse::
+ Advice shown when a sequencer command is already in progress.
implicitIdentity::
Advice on how to set your identity configuration when
your information is guessed from the system username and
domain name.
detachedHead::
- Advice shown when you used linkgit:git-checkout[1] to
- move to the detach HEAD state, to instruct how to create
- a local branch after the fact.
+ Advice shown when you used
+ linkgit:git-switch[1] or linkgit:git-checkout[1]
+ to move to the detach HEAD state, to instruct how to
+ create a local branch after the fact.
checkoutAmbiguousRemoteBranchName::
Advice shown when the argument to
- linkgit:git-checkout[1] ambiguously resolves to a
+ linkgit:git-checkout[1] and linkgit:git-switch[1]
+ ambiguously resolves to a
remote tracking branch on more than one remote in
situations where an unambiguous argument would have
otherwise caused a remote-tracking branch to be
diff --git a/Documentation/config/alias.txt b/Documentation/config/alias.txt
index 0b14178..f1ca739 100644
--- a/Documentation/config/alias.txt
+++ b/Documentation/config/alias.txt
@@ -1,18 +1,28 @@
alias.*::
Command aliases for the linkgit:git[1] command wrapper - e.g.
- after defining "alias.last = cat-file commit HEAD", the invocation
- "git last" is equivalent to "git cat-file commit HEAD". To avoid
+ after defining `alias.last = cat-file commit HEAD`, the invocation
+ `git last` is equivalent to `git cat-file commit HEAD`. To avoid
confusion and troubles with script usage, aliases that
hide existing Git commands are ignored. Arguments are split by
spaces, the usual shell quoting and escaping is supported.
A quote pair or a backslash can be used to quote them.
+
+Note that the first word of an alias does not necessarily have to be a
+command. It can be a command-line option that will be passed into the
+invocation of `git`. In particular, this is useful when used with `-c`
+to pass in one-time configurations or `-p` to force pagination. For example,
+`loud-rebase = -c commit.verbose=true rebase` can be defined such that
+running `git loud-rebase` would be equivalent to
+`git -c commit.verbose=true rebase`. Also, `ps = -p status` would be a
+helpful alias since `git ps` would paginate the output of `git status`
+where the original command does not.
++
If the alias expansion is prefixed with an exclamation point,
it will be treated as a shell command. For example, defining
-"alias.new = !gitk --all --not ORIG_HEAD", the invocation
-"git new" is equivalent to running the shell command
-"gitk --all --not ORIG_HEAD". Note that shell commands will be
+`alias.new = !gitk --all --not ORIG_HEAD`, the invocation
+`git new` is equivalent to running the shell command
+`gitk --all --not ORIG_HEAD`. Note that shell commands will be
executed from the top-level directory of a repository, which may
not necessarily be the current directory.
-`GIT_PREFIX` is set as returned by running 'git rev-parse --show-prefix'
+`GIT_PREFIX` is set as returned by running `git rev-parse --show-prefix`
from the original current directory. See linkgit:git-rev-parse[1].
diff --git a/Documentation/config/blame.txt b/Documentation/config/blame.txt
index 67b5c1d..9468e85 100644
--- a/Documentation/config/blame.txt
+++ b/Documentation/config/blame.txt
@@ -19,3 +19,19 @@ blame.showEmail::
blame.showRoot::
Do not treat root commits as boundaries in linkgit:git-blame[1].
This option defaults to false.
+
+blame.ignoreRevsFile::
+ Ignore revisions listed in the file, one unabbreviated object name per
+ line, in linkgit:git-blame[1]. Whitespace and comments beginning with
+ `#` are ignored. This option may be repeated multiple times. Empty
+ file names will reset the list of ignored revisions. This option will
+ be handled before the command line option `--ignore-revs-file`.
+
+blame.markUnblamables::
+ Mark lines that were changed by an ignored revision that we could not
+ attribute to another commit with a '*' in the output of
+ linkgit:git-blame[1].
+
+blame.markIgnoredLines::
+ Mark lines that were changed by an ignored revision that we attributed to
+ another commit with a '?' in the output of linkgit:git-blame[1].
diff --git a/Documentation/config/branch.txt b/Documentation/config/branch.txt
index 8f4b3fa..a592d52 100644
--- a/Documentation/config/branch.txt
+++ b/Documentation/config/branch.txt
@@ -1,5 +1,5 @@
branch.autoSetupMerge::
- Tells 'git branch' and 'git checkout' to set up new branches
+ Tells 'git branch', 'git switch' and 'git checkout' to set up new branches
so that linkgit:git-pull[1] will appropriately merge from the
starting point branch. Note that even if this option is not set,
this behavior can be chosen per-branch using the `--track`
@@ -11,7 +11,7 @@ branch.autoSetupMerge::
branch. This option defaults to true.
branch.autoSetupRebase::
- When a new branch is created with 'git branch' or 'git checkout'
+ When a new branch is created with 'git branch', 'git switch' or 'git checkout'
that tracks another branch, this variable tells Git to set
up pull to rebase instead of merge (see "branch.<name>.rebase").
When `never`, rebase is never automatically set to true.
diff --git a/Documentation/config/checkout.txt b/Documentation/config/checkout.txt
index c4118fa..6b64681 100644
--- a/Documentation/config/checkout.txt
+++ b/Documentation/config/checkout.txt
@@ -1,5 +1,6 @@
checkout.defaultRemote::
- When you run 'git checkout <something>' and only have one
+ When you run 'git checkout <something>'
+ or 'git switch <something>' and only have one
remote, it may implicitly fall back on checking out and
tracking e.g. 'origin/<something>'. This stops working as soon
as you have more than one remote with a '<something>'
@@ -8,16 +9,10 @@ checkout.defaultRemote::
disambiguation. The typical use-case is to set this to
`origin`.
+
-Currently this is used by linkgit:git-checkout[1] when 'git checkout
-<something>' will checkout the '<something>' branch on another remote,
+Currently this is used by linkgit:git-switch[1] and
+linkgit:git-checkout[1] when 'git checkout <something>'
+or 'git switch <something>'
+will checkout the '<something>' branch on another remote,
and by linkgit:git-worktree[1] when 'git worktree add' refers to a
remote branch. This setting might be used for other checkout-like
commands or functionality in the future.
-
-checkout.optimizeNewBranch::
- Optimizes the performance of "git checkout -b <new_branch>" when
- using sparse-checkout. When set to true, git will not update the
- repo based on the current sparse-checkout settings. This means it
- will not update the skip-worktree bit in the index nor add/remove
- files in the working directory to reflect the current sparse checkout
- settings nor will it show the local changes.
diff --git a/Documentation/config/diff.txt b/Documentation/config/diff.txt
index 2c4c9ba..5afb5a2 100644
--- a/Documentation/config/diff.txt
+++ b/Documentation/config/diff.txt
@@ -78,7 +78,8 @@ diff.external::
diff.ignoreSubmodules::
Sets the default value of --ignore-submodules. Note that this
affects only 'git diff' Porcelain, and not lower level 'diff'
- commands such as 'git diff-files'. 'git checkout' also honors
+ commands such as 'git diff-files'. 'git checkout'
+ and 'git switch' also honor
this setting when reporting uncommitted changes. Setting it to
'all' disables the submodule summary normally shown by 'git commit'
and 'git status' when `status.submoduleSummary` is set unless it is
diff --git a/Documentation/config/fetch.txt b/Documentation/config/fetch.txt
index cbfad6c..ba890b5 100644
--- a/Documentation/config/fetch.txt
+++ b/Documentation/config/fetch.txt
@@ -63,3 +63,8 @@ fetch.negotiationAlgorithm::
Unknown values will cause 'git fetch' to error out.
+
See also the `--negotiation-tip` option for linkgit:git-fetch[1].
+
+fetch.showForcedUpdates::
+ Set to false to enable `--no-show-forced-updates` in
+ linkgit:git-fetch[1] and linkgit:git-pull[1] commands.
+ Defaults to true.
diff --git a/Documentation/config/format.txt b/Documentation/config/format.txt
index dc77941..414a5a8 100644
--- a/Documentation/config/format.txt
+++ b/Documentation/config/format.txt
@@ -85,3 +85,18 @@ format.outputDirectory::
format.useAutoBase::
A boolean value which lets you enable the `--base=auto` option of
format-patch by default.
+
+format.notes::
+ Provides the default value for the `--notes` option to
+ format-patch. Accepts a boolean value, or a ref which specifies
+ where to get notes. If false, format-patch defaults to
+ `--no-notes`. If true, format-patch defaults to `--notes`. If
+ set to a non-boolean value, format-patch defaults to
+ `--notes=<ref>`, where `ref` is the non-boolean value. Defaults
+ to false.
++
+If one wishes to use the ref `ref/notes/true`, please use that literal
+instead.
++
+This configuration can be specified multiple times in order to allow
+multiple notes refs to be included.
diff --git a/Documentation/config/gpg.txt b/Documentation/config/gpg.txt
index f999f8e..cce2c89 100644
--- a/Documentation/config/gpg.txt
+++ b/Documentation/config/gpg.txt
@@ -2,7 +2,7 @@ gpg.program::
Use this custom program instead of "`gpg`" found on `$PATH` when
making or verifying a PGP signature. The program must support the
same command-line interface as GPG, namely, to verify a detached
- signature, "`gpg --verify $file - <$signature`" is run, and the
+ signature, "`gpg --verify $signature - <$file`" is run, and the
program is expected to signal a good signature by exiting with
code 0, and to generate an ASCII-armored detached signature, the
standard input of "`gpg -bsau $key`" is fed with the contents to be
diff --git a/Documentation/config/interactive.txt b/Documentation/config/interactive.txt
index ad846dd..a2d3c7e 100644
--- a/Documentation/config/interactive.txt
+++ b/Documentation/config/interactive.txt
@@ -2,7 +2,8 @@ interactive.singleKey::
In interactive commands, allow the user to provide one-letter
input with a single key (i.e., without hitting enter).
Currently this is used by the `--patch` mode of
- linkgit:git-add[1], linkgit:git-checkout[1], linkgit:git-commit[1],
+ linkgit:git-add[1], linkgit:git-checkout[1],
+ linkgit:git-restore[1], linkgit:git-commit[1],
linkgit:git-reset[1], and linkgit:git-stash[1]. Note that this
setting is silently ignored if portable keystroke input
is not available; requires the Perl module Term::ReadKey.
diff --git a/Documentation/config/status.txt b/Documentation/config/status.txt
index ed72fa7..0fc704a 100644
--- a/Documentation/config/status.txt
+++ b/Documentation/config/status.txt
@@ -12,6 +12,11 @@ status.branch::
Set to true to enable --branch by default in linkgit:git-status[1].
The option --no-branch takes precedence over this variable.
+status.aheadBehind::
+ Set to true to enable `--ahead-behind` and false to enable
+ `--no-ahead-behind` by default in linkgit:git-status[1] for
+ non-porcelain status formats. Defaults to true.
+
status.displayCommentPrefix::
If set to true, linkgit:git-status[1] will insert a comment
prefix before each output line (starting with
diff --git a/Documentation/config/tag.txt b/Documentation/config/tag.txt
index 663663b..ef5adb3 100644
--- a/Documentation/config/tag.txt
+++ b/Documentation/config/tag.txt
@@ -8,6 +8,14 @@ tag.sort::
linkgit:git-tag[1]. Without the "--sort=<value>" option provided, the
value of this variable will be used as the default.
+tag.gpgSign::
+ A boolean to specify whether all tags should be GPG signed.
+ Use of this option when running in an automated script can
+ result in a large number of tags being signed. It is therefore
+ convenient to use an agent to avoid typing your gpg passphrase
+ several times. Note that this option doesn't affects tag signing
+ behavior enabled by "-u <keyid>" or "--local-user=<keyid>" options.
+
tar.umask::
This variable can be used to restrict the permission bits of
tar archive entries. The default is 0002, which turns off the
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt
index 91c4775..3c9b4f9 100644
--- a/Documentation/fetch-options.txt
+++ b/Documentation/fetch-options.txt
@@ -88,6 +88,10 @@ ifndef::git-pull[]
Allow several <repository> and <group> arguments to be
specified. No <refspec>s may be specified.
+--[no-]auto-gc::
+ Run `git gc --auto` at the end to perform garbage collection
+ if needed. This is enabled by default.
+
-p::
--prune::
Before fetching, remove any remote-tracking references that no
@@ -221,6 +225,19 @@ endif::git-pull[]
When multiple `--server-option=<option>` are given, they are all
sent to the other side in the order listed on the command line.
+--show-forced-updates::
+ By default, git checks if a branch is force-updated during
+ fetch. This can be disabled through fetch.showForcedUpdates, but
+ the --show-forced-updates option guarantees this check occurs.
+ See linkgit:git-config[1].
+
+--no-show-forced-updates::
+ By default, git checks if a branch is force-updated during
+ fetch. Pass --no-show-forced-updates or set fetch.showForcedUpdates
+ to false to skip this check for performance reasons. If used during
+ 'git-pull' the --ff-only option will still check for forced updates
+ before attempting a fast-forward update. See linkgit:git-config[1].
+
-4::
--ipv4::
Use IPv4 addresses only, ignoring IPv6 addresses.
diff --git a/Documentation/git-blame.txt b/Documentation/git-blame.txt
index 16323eb..7e81541 100644
--- a/Documentation/git-blame.txt
+++ b/Documentation/git-blame.txt
@@ -10,6 +10,7 @@ SYNOPSIS
[verse]
'git blame' [-c] [-b] [-l] [--root] [-t] [-f] [-n] [-s] [-e] [-p] [-w] [--incremental]
[-L <range>] [-S <revs-file>] [-M] [-C] [-C] [-C] [--since=<date>]
+ [--ignore-rev <rev>] [--ignore-revs-file <file>]
[--progress] [--abbrev=<n>] [<rev> | --contents <file> | --reverse <rev>..<rev>]
[--] <file>
diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index 6ebd512..135206f 100644
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -8,12 +8,14 @@ git-branch - List, create, or delete branches
SYNOPSIS
--------
[verse]
-'git branch' [--color[=<when>] | --no-color] [-r | -a]
- [--list] [--show-current] [-v [--abbrev=<length> | --no-abbrev]]
+'git branch' [--color[=<when>] | --no-color] [--show-current]
+ [-v [--abbrev=<length> | --no-abbrev]]
[--column[=<options>] | --no-column] [--sort=<key>]
[(--merged | --no-merged) [<commit>]]
[--contains [<commit]] [--no-contains [<commit>]]
- [--points-at <object>] [--format=<format>] [<pattern>...]
+ [--points-at <object>] [--format=<format>]
+ [(-r | --remotes) | (-a | --all)]
+ [--list] [<pattern>...]
'git branch' [--track | --no-track] [-f] <branchname> [<start-point>]
'git branch' (--set-upstream-to=<upstream> | -u <upstream>) [<branchname>]
'git branch' --unset-upstream [<branchname>]
@@ -26,13 +28,19 @@ DESCRIPTION
-----------
If `--list` is given, or if there are no non-option arguments, existing
-branches are listed; the current branch will be highlighted with an
-asterisk. Option `-r` causes the remote-tracking branches to be listed,
-and option `-a` shows both local and remote branches. If a `<pattern>`
+branches are listed; the current branch will be highlighted in green and
+marked with an asterisk. Any branches checked out in linked worktrees will
+be highlighted in cyan and marked with a plus sign. Option `-r` causes the
+remote-tracking branches to be listed,
+and option `-a` shows both local and remote branches.
+
+If a `<pattern>`
is given, it is used as a shell wildcard to restrict the output to
matching branches. If multiple patterns are given, a branch is shown if
-it matches any of the patterns. Note that when providing a
-`<pattern>`, you must use `--list`; otherwise the command is interpreted
+it matches any of the patterns.
+
+Note that when providing a
+`<pattern>`, you must use `--list`; otherwise the command may be interpreted
as branch creation.
With `--contains`, shows only the branches that contain the named commit
@@ -52,7 +60,7 @@ can leave out at most one of `A` and `B`, in which case it defaults to
`HEAD`.
Note that this will create the new branch, but it will not switch the
-working tree to it; use "git checkout <newbranch>" to switch to the
+working tree to it; use "git switch <newbranch>" to switch to the
new branch.
When a local branch is started off a remote-tracking branch, Git sets up the
@@ -153,10 +161,12 @@ This option is only applicable in non-verbose mode.
-r::
--remotes::
List or delete (if used with -d) the remote-tracking branches.
+ Combine with `--list` to match the optional pattern(s).
-a::
--all::
List both remote-tracking branches and local branches.
+ Combine with `--list` to match optional pattern(s).
-l::
--list::
@@ -174,8 +184,10 @@ This option is only applicable in non-verbose mode.
When in list mode,
show sha1 and commit subject line for each head, along with
relationship to upstream branch (if any). If given twice, print
- the name of the upstream branch, as well (see also `git remote
- show <remote>`).
+ the path of the linked worktree (if any) and the name of the upstream
+ branch, as well (see also `git remote show <remote>`). Note that the
+ current worktree's HEAD will not have its path printed (it will always
+ be your current directory).
-q::
--quiet::
@@ -202,7 +214,7 @@ This option is only applicable in non-verbose mode.
+
This behavior is the default when the start point is a remote-tracking branch.
Set the branch.autoSetupMerge configuration variable to `false` if you
-want `git checkout` and `git branch` to always behave as if `--no-track`
+want `git switch`, `git checkout` and `git branch` to always behave as if `--no-track`
were given. Set it to `always` if you want this behavior when the
start-point is either a local or remote-tracking branch.
@@ -301,7 +313,7 @@ Start development from a known tag::
$ git clone git://git.kernel.org/pub/scm/.../linux-2.6 my2.6
$ cd my2.6
$ git branch my2.6.14 v2.6.14 <1>
-$ git checkout my2.6.14
+$ git switch my2.6.14
------------
+
<1> This step and the next one could be combined into a single step with
@@ -322,13 +334,25 @@ $ git branch -D test <2>
<2> Delete the "test" branch even if the "master" branch (or whichever branch
is currently checked out) does not have all commits from the test branch.
+Listing branches from a specific remote::
++
+------------
+$ git branch -r -l '<remote>/<pattern>' <1>
+$ git for-each-ref 'refs/remotes/<remote>/<pattern>' <2>
+------------
++
+<1> Using `-a` would conflate <remote> with any local branches you happen to
+ have been prefixed with the same <remote> pattern.
+<2> `for-each-ref` can take a wide range of options. See linkgit:git-for-each-ref[1]
+
+Patterns will normally need quoting.
NOTES
-----
-If you are creating a branch that you want to checkout immediately, it is
-easier to use the git checkout command with its `-b` option to create
-a branch and check it out with a single command.
+If you are creating a branch that you want to switch to immediately,
+it is easier to use the "git switch" command with its `-c` option to
+do the same thing with a single command.
The options `--contains`, `--no-contains`, `--merged` and `--no-merged`
serve four related but different purposes:
diff --git a/Documentation/git-check-ref-format.txt b/Documentation/git-check-ref-format.txt
index d9de992..ee6a414 100644
--- a/Documentation/git-check-ref-format.txt
+++ b/Documentation/git-check-ref-format.txt
@@ -88,7 +88,8 @@ but it is explicitly forbidden at the beginning of a branch name).
When run with `--branch` option in a repository, the input is first
expanded for the ``previous checkout syntax''
`@{-n}`. For example, `@{-1}` is a way to refer the last thing that
-was checked out using "git checkout" operation. This option should be
+was checked out using "git switch" or "git checkout" operation.
+This option should be
used by porcelains to accept this syntax anywhere a branch name is
expected, so they can act as if you typed the branch name. As an
exception note that, the ``previous checkout operation'' might result
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index 964f912..cf3cac0 100644
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -23,31 +23,22 @@ or the specified tree. If no paths are given, 'git checkout' will
also update `HEAD` to set the specified branch as the current
branch.
-'git checkout' <branch>::
- To prepare for working on <branch>, switch to it by updating
+'git checkout' [<branch>]::
+ To prepare for working on `<branch>`, switch to it by updating
the index and the files in the working tree, and by pointing
- HEAD at the branch. Local modifications to the files in the
+ `HEAD` at the branch. Local modifications to the files in the
working tree are kept, so that they can be committed to the
- <branch>.
+ `<branch>`.
+
-If <branch> is not found but there does exist a tracking branch in
-exactly one remote (call it <remote>) with a matching name, treat as
-equivalent to
+If `<branch>` is not found but there does exist a tracking branch in
+exactly one remote (call it `<remote>`) with a matching name and
+`--no-guess` is not specified, treat as equivalent to
+
------------
$ git checkout -b <branch> --track <remote>/<branch>
------------
+
-If the branch exists in multiple remotes and one of them is named by
-the `checkout.defaultRemote` configuration variable, we'll use that
-one for the purposes of disambiguation, even if the `<branch>` isn't
-unique across all remotes. Set it to
-e.g. `checkout.defaultRemote=origin` to always checkout remote
-branches from there if `<branch>` is ambiguous but exists on the
-'origin' remote. See also `checkout.defaultRemote` in
-linkgit:git-config[1].
-+
-You could omit <branch>, in which case the command degenerates to
+You could omit `<branch>`, in which case the command degenerates to
"check out the current branch", which is a glorified no-op with
rather expensive side-effects to show only the tracking information,
if exists, for the current branch.
@@ -61,7 +52,7 @@ if exists, for the current branch.
`--track` without `-b` implies branch creation; see the
description of `--track` below.
+
-If `-B` is given, <new_branch> is created if it doesn't exist; otherwise, it
+If `-B` is given, `<new_branch>` is created if it doesn't exist; otherwise, it
is reset. This is the transactional equivalent of
+
------------
@@ -75,25 +66,25 @@ successful.
'git checkout' --detach [<branch>]::
'git checkout' [--detach] <commit>::
- Prepare to work on top of <commit>, by detaching HEAD at it
+ Prepare to work on top of `<commit>`, by detaching `HEAD` at it
(see "DETACHED HEAD" section), and updating the index and the
files in the working tree. Local modifications to the files
in the working tree are kept, so that the resulting working
tree will be the state recorded in the commit plus the local
modifications.
+
-When the <commit> argument is a branch name, the `--detach` option can
-be used to detach HEAD at the tip of the branch (`git checkout
-<branch>` would check out that branch without detaching HEAD).
+When the `<commit>` argument is a branch name, the `--detach` option can
+be used to detach `HEAD` at the tip of the branch (`git checkout
+<branch>` would check out that branch without detaching `HEAD`).
+
-Omitting <branch> detaches HEAD at the tip of the current branch.
+Omitting `<branch>` detaches `HEAD` at the tip of the current branch.
'git checkout' [<tree-ish>] [--] <pathspec>...::
Overwrite paths in the working tree by replacing with the
- contents in the index or in the <tree-ish> (most often a
- commit). When a <tree-ish> is given, the paths that
- match the <pathspec> are updated both in the index and in
+ contents in the index or in the `<tree-ish>` (most often a
+ commit). When a `<tree-ish>` is given, the paths that
+ match the `<pathspec>` are updated both in the index and in
the working tree.
+
The index may contain unmerged entries because of a previous failed merge.
@@ -118,7 +109,8 @@ OPTIONS
--quiet::
Quiet, suppress feedback messages.
---[no-]progress::
+--progress::
+--no-progress::
Progress status is reported on the standard error stream
by default when it is attached to a terminal, unless `--quiet`
is specified. This flag enables progress reporting even if not
@@ -127,7 +119,7 @@ OPTIONS
-f::
--force::
When switching branches, proceed even if the index or the
- working tree differs from HEAD. This is used to throw away
+ working tree differs from `HEAD`. This is used to throw away
local changes.
+
When checking out paths from the index, do not fail upon unmerged
@@ -154,12 +146,12 @@ on your side branch as `theirs` (i.e. "one contributor's work on top
of it").
-b <new_branch>::
- Create a new branch named <new_branch> and start it at
- <start_point>; see linkgit:git-branch[1] for details.
+ Create a new branch named `<new_branch>` and start it at
+ `<start_point>`; see linkgit:git-branch[1] for details.
-B <new_branch>::
- Creates the branch <new_branch> and start it at <start_point>;
- if it already exists, then reset it to <start_point>. This is
+ Creates the branch `<new_branch>` and start it at `<start_point>`;
+ if it already exists, then reset it to `<start_point>`. This is
equivalent to running "git branch" with "-f"; see
linkgit:git-branch[1] for details.
@@ -172,15 +164,36 @@ If no `-b` option is given, the name of the new branch will be
derived from the remote-tracking branch, by looking at the local part of
the refspec configured for the corresponding remote, and then stripping
the initial part up to the "*".
-This would tell us to use "hack" as the local branch when branching
-off of "origin/hack" (or "remotes/origin/hack", or even
-"refs/remotes/origin/hack"). If the given name has no slash, or the above
+This would tell us to use `hack` as the local branch when branching
+off of `origin/hack` (or `remotes/origin/hack`, or even
+`refs/remotes/origin/hack`). If the given name has no slash, or the above
guessing results in an empty name, the guessing is aborted. You can
explicitly give a name with `-b` in such a case.
--no-track::
Do not set up "upstream" configuration, even if the
- branch.autoSetupMerge configuration variable is true.
+ `branch.autoSetupMerge` configuration variable is true.
+
+--guess::
+--no-guess::
+ If `<branch>` is not found but there does exist a tracking
+ branch in exactly one remote (call it `<remote>`) with a
+ matching name, treat as equivalent to
++
+------------
+$ git checkout -b <branch> --track <remote>/<branch>
+------------
++
+If the branch exists in multiple remotes and one of them is named by
+the `checkout.defaultRemote` configuration variable, we'll use that
+one for the purposes of disambiguation, even if the `<branch>` isn't
+unique across all remotes. Set it to
+e.g. `checkout.defaultRemote=origin` to always checkout remote
+branches from there if `<branch>` is ambiguous but exists on the
+'origin' remote. See also `checkout.defaultRemote` in
+linkgit:git-config[1].
++
+Use `--no-guess` to disable this.
-l::
Create the new branch's reflog; see linkgit:git-branch[1] for
@@ -189,21 +202,21 @@ explicitly give a name with `-b` in such a case.
--detach::
Rather than checking out a branch to work on it, check out a
commit for inspection and discardable experiments.
- This is the default behavior of "git checkout <commit>" when
- <commit> is not a branch name. See the "DETACHED HEAD" section
+ This is the default behavior of `git checkout <commit>` when
+ `<commit>` is not a branch name. See the "DETACHED HEAD" section
below for details.
--orphan <new_branch>::
- Create a new 'orphan' branch, named <new_branch>, started from
- <start_point> and switch to it. The first commit made on this
+ Create a new 'orphan' branch, named `<new_branch>`, started from
+ `<start_point>` and switch to it. The first commit made on this
new branch will have no parents and it will be the root of a new
history totally disconnected from all the other branches and
commits.
+
The index and the working tree are adjusted as if you had previously run
-"git checkout <start_point>". This allows you to start a new history
-that records a set of paths similar to <start_point> by easily running
-"git commit -a" to make the root commit.
+`git checkout <start_point>`. This allows you to start a new history
+that records a set of paths similar to `<start_point>` by easily running
+`git commit -a` to make the root commit.
+
This can be useful when you want to publish the tree from a commit
without exposing its full history. You might want to do this to publish
@@ -212,17 +225,17 @@ whose full history contains proprietary or otherwise encumbered bits of
code.
+
If you want to start a disconnected history that records a set of paths
-that is totally different from the one of <start_point>, then you should
+that is totally different from the one of `<start_point>`, then you should
clear the index and the working tree right after creating the orphan
-branch by running "git rm -rf ." from the top level of the working tree.
+branch by running `git rm -rf .` from the top level of the working tree.
Afterwards you will be ready to prepare your new files, repopulating the
working tree, by copying them from elsewhere, extracting a tarball, etc.
--ignore-skip-worktree-bits::
In sparse checkout mode, `git checkout -- <paths>` would
- update only entries matched by <paths> and sparse patterns
- in $GIT_DIR/info/sparse-checkout. This option ignores
- the sparse patterns and adds back any files in <paths>.
+ update only entries matched by `<paths>` and sparse patterns
+ in `$GIT_DIR/info/sparse-checkout`. This option ignores
+ the sparse patterns and adds back any files in `<paths>`.
-m::
--merge::
@@ -246,25 +259,25 @@ the conflicted merge in the specified paths.
When switching branches with `--merge`, staged changes may be lost.
--conflict=<style>::
- The same as --merge option above, but changes the way the
+ The same as `--merge` option above, but changes the way the
conflicting hunks are presented, overriding the
- merge.conflictStyle configuration variable. Possible values are
+ `merge.conflictStyle` configuration variable. Possible values are
"merge" (default) and "diff3" (in addition to what is shown by
"merge" style, shows the original contents).
-p::
--patch::
Interactively select hunks in the difference between the
- <tree-ish> (or the index, if unspecified) and the working
+ `<tree-ish>` (or the index, if unspecified) and the working
tree. The chosen hunks are then applied in reverse to the
- working tree (and if a <tree-ish> was specified, the index).
+ working tree (and if a `<tree-ish>` was specified, the index).
+
This means that you can use `git checkout -p` to selectively discard
edits from your current working tree. See the ``Interactive Mode''
section of linkgit:git-add[1] to learn how to operate the `--patch` mode.
+
Note that this option uses the no overlay mode by default (see also
-`--[no-]overlay`), and currently doesn't support overlay mode.
+`--overlay`), and currently doesn't support overlay mode.
--ignore-other-worktrees::
`git checkout` refuses when the wanted ref is already checked
@@ -272,38 +285,42 @@ Note that this option uses the no overlay mode by default (see also
out anyway. In other words, the ref can be held by more than one
worktree.
---[no-]recurse-submodules::
- Using --recurse-submodules will update the content of all initialized
+--overwrite-ignore::
+--no-overwrite-ignore::
+ Silently overwrite ignored files when switching branches. This
+ is the default behavior. Use `--no-overwrite-ignore` to abort
+ the operation when the new branch contains ignored files.
+
+--recurse-submodules::
+--no-recurse-submodules::
+ Using `--recurse-submodules` will update the content of all initialized
submodules according to the commit recorded in the superproject. If
local modifications in a submodule would be overwritten the checkout
- will fail unless `-f` is used. If nothing (or --no-recurse-submodules)
+ will fail unless `-f` is used. If nothing (or `--no-recurse-submodules`)
is used, the work trees of submodules will not be updated.
- Just like linkgit:git-submodule[1], this will detach the
- submodules HEAD.
-
---no-guess::
- Do not attempt to create a branch if a remote tracking branch
- of the same name exists.
+ Just like linkgit:git-submodule[1], this will detach `HEAD` of the
+ submodule.
---[no-]overlay::
+--overlay::
+--no-overlay::
In the default overlay mode, `git checkout` never
removes files from the index or the working tree. When
specifying `--no-overlay`, files that appear in the index and
- working tree, but not in <tree-ish> are removed, to make them
- match <tree-ish> exactly.
+ working tree, but not in `<tree-ish>` are removed, to make them
+ match `<tree-ish>` exactly.
<branch>::
Branch to checkout; if it refers to a branch (i.e., a name that,
when prepended with "refs/heads/", is a valid ref), then that
branch is checked out. Otherwise, if it refers to a valid
- commit, your HEAD becomes "detached" and you are no longer on
+ commit, your `HEAD` becomes "detached" and you are no longer on
any branch (see below for details).
+
-You can use the `"@{-N}"` syntax to refer to the N-th last
+You can use the `@{-N}` syntax to refer to the N-th last
branch/commit checked out using "git checkout" operation. You may
-also specify `-` which is synonymous to `"@{-1}"`.
+also specify `-` which is synonymous to `@{-1}`.
+
-As a special case, you may use `"A...B"` as a shortcut for the
+As a special case, you may use `A...B` as a shortcut for the
merge base of `A` and `B` if there is exactly one merge base. You can
leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.
@@ -312,7 +329,7 @@ leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.
<start_point>::
The name of a commit at which to start the new branch; see
- linkgit:git-branch[1] for details. Defaults to HEAD.
+ linkgit:git-branch[1] for details. Defaults to `HEAD`.
+
As a special case, you may use `"A...B"` as a shortcut for the
merge base of `A` and `B` if there is exactly one merge base. You can
@@ -326,9 +343,9 @@ leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.
DETACHED HEAD
-------------
-HEAD normally refers to a named branch (e.g. 'master'). Meanwhile, each
+`HEAD` normally refers to a named branch (e.g. `master`). Meanwhile, each
branch refers to a specific commit. Let's look at a repo with three
-commits, one of them tagged, and with branch 'master' checked out:
+commits, one of them tagged, and with branch `master` checked out:
------------
HEAD (refers to branch 'master')
@@ -341,10 +358,10 @@ a---b---c branch 'master' (refers to commit 'c')
------------
When a commit is created in this state, the branch is updated to refer to
-the new commit. Specifically, 'git commit' creates a new commit 'd', whose
-parent is commit 'c', and then updates branch 'master' to refer to new
-commit 'd'. HEAD still refers to branch 'master' and so indirectly now refers
-to commit 'd':
+the new commit. Specifically, 'git commit' creates a new commit `d`, whose
+parent is commit `c`, and then updates branch `master` to refer to new
+commit `d`. `HEAD` still refers to branch `master` and so indirectly now refers
+to commit `d`:
------------
$ edit; git add; git commit
@@ -361,7 +378,7 @@ a---b---c---d branch 'master' (refers to commit 'd')
It is sometimes useful to be able to checkout a commit that is not at
the tip of any named branch, or even to create a new commit that is not
referenced by a named branch. Let's look at what happens when we
-checkout commit 'b' (here we show two ways this may be done):
+checkout commit `b` (here we show two ways this may be done):
------------
$ git checkout v2.0 # or
@@ -376,9 +393,9 @@ a---b---c---d branch 'master' (refers to commit 'd')
tag 'v2.0' (refers to commit 'b')
------------
-Notice that regardless of which checkout command we use, HEAD now refers
-directly to commit 'b'. This is known as being in detached HEAD state.
-It means simply that HEAD refers to a specific commit, as opposed to
+Notice that regardless of which checkout command we use, `HEAD` now refers
+directly to commit `b`. This is known as being in detached `HEAD` state.
+It means simply that `HEAD` refers to a specific commit, as opposed to
referring to a named branch. Let's see what happens when we create a commit:
------------
@@ -395,7 +412,7 @@ a---b---c---d branch 'master' (refers to commit 'd')
tag 'v2.0' (refers to commit 'b')
------------
-There is now a new commit 'e', but it is referenced only by HEAD. We can
+There is now a new commit `e`, but it is referenced only by `HEAD`. We can
of course add yet another commit in this state:
------------
@@ -413,7 +430,7 @@ a---b---c---d branch 'master' (refers to commit 'd')
------------
In fact, we can perform all the normal Git operations. But, let's look
-at what happens when we then checkout master:
+at what happens when we then checkout `master`:
------------
$ git checkout master
@@ -428,9 +445,9 @@ a---b---c---d branch 'master' (refers to commit 'd')
------------
It is important to realize that at this point nothing refers to commit
-'f'. Eventually commit 'f' (and by extension commit 'e') will be deleted
+`f`. Eventually commit `f` (and by extension commit `e`) will be deleted
by the routine Git garbage collection process, unless we create a reference
-before that happens. If we have not yet moved away from commit 'f',
+before that happens. If we have not yet moved away from commit `f`,
any of these will create a reference to it:
------------
@@ -439,19 +456,19 @@ $ git branch foo <2>
$ git tag foo <3>
------------
-<1> creates a new branch 'foo', which refers to commit 'f', and then
- updates HEAD to refer to branch 'foo'. In other words, we'll no longer
- be in detached HEAD state after this command.
+<1> creates a new branch `foo`, which refers to commit `f`, and then
+ updates `HEAD` to refer to branch `foo`. In other words, we'll no longer
+ be in detached `HEAD` state after this command.
-<2> similarly creates a new branch 'foo', which refers to commit 'f',
- but leaves HEAD detached.
+<2> similarly creates a new branch `foo`, which refers to commit `f`,
+ but leaves `HEAD` detached.
-<3> creates a new tag 'foo', which refers to commit 'f',
- leaving HEAD detached.
+<3> creates a new tag `foo`, which refers to commit `f`,
+ leaving `HEAD` detached.
-If we have moved away from commit 'f', then we must first recover its object
+If we have moved away from commit `f`, then we must first recover its object
name (typically by using git reflog), and then we can create a reference to
-it. For example, to see the last two commits to which HEAD referred, we
+it. For example, to see the last two commits to which `HEAD` referred, we
can use either of these commands:
------------
@@ -462,12 +479,12 @@ $ git log -g -2 HEAD
ARGUMENT DISAMBIGUATION
-----------------------
-When there is only one argument given and it is not `--` (e.g. "git
-checkout abc"), and when the argument is both a valid `<tree-ish>`
-(e.g. a branch "abc" exists) and a valid `<pathspec>` (e.g. a file
+When there is only one argument given and it is not `--` (e.g. `git
+checkout abc`), and when the argument is both a valid `<tree-ish>`
+(e.g. a branch `abc` exists) and a valid `<pathspec>` (e.g. a file
or a directory whose name is "abc" exists), Git would usually ask
you to disambiguate. Because checking out a branch is so common an
-operation, however, "git checkout abc" takes "abc" as a `<tree-ish>`
+operation, however, `git checkout abc` takes "abc" as a `<tree-ish>`
in such a situation. Use `git checkout -- <pathspec>` if you want
to checkout these paths out of the index.
@@ -475,7 +492,7 @@ EXAMPLES
--------
. The following sequence checks out the `master` branch, reverts
- the `Makefile` to two revisions back, deletes hello.c by
+ the `Makefile` to two revisions back, deletes `hello.c` by
mistake, and gets it back from the index.
+
------------
@@ -487,7 +504,7 @@ $ git checkout hello.c <3>
+
<1> switch branch
<2> take a file out of another commit
-<3> restore hello.c from the index
+<3> restore `hello.c` from the index
+
If you want to check out _all_ C source files out of the index,
you can say
@@ -516,7 +533,7 @@ $ git checkout -- hello.c
$ git checkout mytopic
------------
+
-However, your "wrong" branch and correct "mytopic" branch may
+However, your "wrong" branch and correct `mytopic` branch may
differ in files that you have modified locally, in which case
the above checkout would fail like this:
+
@@ -557,6 +574,11 @@ $ edit frotz
$ git add frotz
------------
+SEE ALSO
+--------
+linkgit:git-switch[1],
+linkgit:git-restore[1]
+
GIT
---
Part of the linkgit:git[1] suite
diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt
index 754b16c..83ce51a 100644
--- a/Documentation/git-cherry-pick.txt
+++ b/Documentation/git-cherry-pick.txt
@@ -10,9 +10,7 @@ SYNOPSIS
[verse]
'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] [--ff]
[-S[<keyid>]] <commit>...
-'git cherry-pick' --continue
-'git cherry-pick' --quit
-'git cherry-pick' --abort
+'git cherry-pick' (--continue | --skip | --abort | --quit)
DESCRIPTION
-----------
diff --git a/Documentation/git-clean.txt b/Documentation/git-clean.txt
index db876f7..0028ff1 100644
--- a/Documentation/git-clean.txt
+++ b/Documentation/git-clean.txt
@@ -63,7 +63,7 @@ OPTIONS
still use the ignore rules given with `-e` options from the command
line. This allows removing all untracked
files, including build products. This can be used (possibly in
- conjunction with 'git reset') to create a pristine
+ conjunction with 'git restore' or 'git reset') to create a pristine
working directory to test a clean build.
-X::
diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt
index a0f14b5..34011c2 100644
--- a/Documentation/git-clone.txt
+++ b/Documentation/git-clone.txt
@@ -15,14 +15,15 @@ SYNOPSIS
[--dissociate] [--separate-git-dir <git dir>]
[--depth <depth>] [--[no-]single-branch] [--no-tags]
[--recurse-submodules[=<pathspec>]] [--[no-]shallow-submodules]
- [--jobs <n>] [--] <repository> [<directory>]
+ [--[no-]remote-submodules] [--jobs <n>] [--] <repository>
+ [<directory>]
DESCRIPTION
-----------
Clones a repository into a newly created directory, creates
remote-tracking branches for each branch in the cloned repository
-(visible using `git branch -r`), and creates and checks out an
+(visible using `git branch --remotes`), and creates and checks out an
initial branch that is forked from the cloned repository's
currently active branch.
@@ -40,8 +41,8 @@ configuration variables.
OPTIONS
-------
---local::
-l::
+--local::
When the repository to clone from is on a local machine,
this flag bypasses the normal "Git aware" transport
mechanism and clones the repository by making a copy of
@@ -62,8 +63,8 @@ Git transport instead.
directory instead of using hardlinks. This may be desirable
if you are trying to make a back-up of your repository.
---shared::
-s::
+--shared::
When the repository to clone is on the local machine,
instead of using hard links, automatically setup
`.git/objects/info/alternates` to share the objects
@@ -80,13 +81,13 @@ which automatically call `git gc --auto`. (See linkgit:git-gc[1].)
If these objects are removed and were referenced by the cloned repository,
then the cloned repository will become corrupt.
+
-Note that running `git repack` without the `-l` option in a repository
-cloned with `-s` will copy objects from the source repository into a pack
-in the cloned repository, removing the disk space savings of `clone -s`.
-It is safe, however, to run `git gc`, which uses the `-l` option by
+Note that running `git repack` without the `--local` option in a repository
+cloned with `--shared` will copy objects from the source repository into a pack
+in the cloned repository, removing the disk space savings of `clone --shared`.
+It is safe, however, to run `git gc`, which uses the `--local` option by
default.
+
-If you want to break the dependency of a repository cloned with `-s` on
+If you want to break the dependency of a repository cloned with `--shared` on
its source repository, you can simply run `git repack -a` to copy all
objects from the source repository into a pack in the cloned repository.
@@ -115,19 +116,19 @@ objects from the source repository into a pack in the cloned repository.
same repository, and this option can be used to stop the
borrowing.
---quiet::
-q::
+--quiet::
Operate quietly. Progress is not reported to the standard
error stream.
---verbose::
-v::
+--verbose::
Run verbosely. Does not affect the reporting of progress status
to the standard error stream.
--progress::
Progress status is reported on the standard error stream
- by default when it is attached to a terminal, unless -q
+ by default when it is attached to a terminal, unless `--quiet`
is specified. This flag forces progress status even if the
standard error stream is not directed to a terminal.
@@ -139,15 +140,15 @@ objects from the source repository into a pack in the cloned repository.
When multiple `--server-option=<option>` are given, they are all
sent to the other side in the order listed on the command line.
---no-checkout::
-n::
+--no-checkout::
No checkout of HEAD is performed after the clone is complete.
--bare::
Make a 'bare' Git repository. That is, instead of
creating `<directory>` and placing the administrative
files in `<directory>/.git`, make the `<directory>`
- itself the `$GIT_DIR`. This obviously implies the `-n`
+ itself the `$GIT_DIR`. This obviously implies the `--no-checkout`
because there is nowhere to check out the working tree.
Also the branch heads at the remote are copied directly
to corresponding local branch heads, without mapping
@@ -163,13 +164,13 @@ objects from the source repository into a pack in the cloned repository.
that all these refs are overwritten by a `git remote update` in the
target repository.
---origin <name>::
-o <name>::
+--origin <name>::
Instead of using the remote name `origin` to keep track
of the upstream repository, use `<name>`.
---branch <name>::
-b <name>::
+--branch <name>::
Instead of pointing the newly created HEAD to the branch pointed
to by the cloned repository's HEAD, point to `<name>` branch
instead. In a non-bare repository, this is the branch that will
@@ -177,8 +178,8 @@ objects from the source repository into a pack in the cloned repository.
`--branch` can also take tags and detaches the HEAD at that commit
in the resulting repository.
---upload-pack <upload-pack>::
-u <upload-pack>::
+--upload-pack <upload-pack>::
When given, and the repository to clone from is accessed
via ssh, this specifies a non-default path for the command
run on the other end.
@@ -187,8 +188,8 @@ objects from the source repository into a pack in the cloned repository.
Specify the directory from which templates will be used;
(See the "TEMPLATE DIRECTORY" section of linkgit:git-init[1].)
---config <key>=<value>::
-c <key>=<value>::
+--config <key>=<value>::
Set a configuration variable in the newly-created repository;
this takes effect immediately after the repository is
initialized, but before the remote history is fetched or any
@@ -260,6 +261,12 @@ or `--mirror` is given)
--[no-]shallow-submodules::
All submodules which are cloned will be shallow with a depth of 1.
+--[no-]remote-submodules::
+ All submodules which are cloned will use the status of the submodule’s
+ remote-tracking branch to update the submodule, rather than the
+ superproject’s recorded SHA-1. Equivalent to passing `--remote` to
+ `git submodule update`.
+
--separate-git-dir=<git dir>::
Instead of placing the cloned repository where it is supposed
to be, place the cloned repository at the specified directory,
diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt
index 624470e..eb5e786 100644
--- a/Documentation/git-commit-graph.txt
+++ b/Documentation/git-commit-graph.txt
@@ -10,7 +10,7 @@ SYNOPSIS
--------
[verse]
'git commit-graph read' [--object-dir <dir>]
-'git commit-graph verify' [--object-dir <dir>]
+'git commit-graph verify' [--object-dir <dir>] [--shallow]
'git commit-graph write' <options> [--object-dir <dir>]
@@ -26,7 +26,7 @@ OPTIONS
Use given directory for the location of packfiles and commit-graph
file. This parameter exists to specify the location of an alternate
that only has the objects directory, not a full `.git` directory. The
- commit-graph file is expected to be at `<dir>/info/commit-graph` and
+ commit-graph file is expected to be in the `<dir>/info` directory and
the packfiles are expected to be in `<dir>/pack`.
@@ -51,6 +51,25 @@ or `--stdin-packs`.)
+
With the `--append` option, include all commits that are present in the
existing commit-graph file.
++
+With the `--split` option, write the commit-graph as a chain of multiple
+commit-graph files stored in `<dir>/info/commit-graphs`. The new commits
+not already in the commit-graph are added in a new "tip" file. This file
+is merged with the existing file if the following merge conditions are
+met:
++
+* If `--size-multiple=<X>` is not specified, let `X` equal 2. If the new
+tip file would have `N` commits and the previous tip has `M` commits and
+`X` times `N` is greater than `M`, instead merge the two files into a
+single file.
++
+* If `--max-commits=<M>` is specified with `M` a positive integer, and the
+new tip file would have more than `M` commits, then instead merge the new
+tip with the previous tip.
++
+Finally, if `--expire-time=<datetime>` is not specified, let `datetime`
+be the current time. After writing the split commit-graph, delete all
+unused commit-graph whose modified times are older than `datetime`.
'read'::
@@ -61,6 +80,9 @@ Used for debugging purposes.
Read the commit-graph file and verify its contents against the object
database. Used to check for corrupted data.
++
+With the `--shallow` option, only check the tip commit-graph file in
+a chain of split commit-graphs.
EXAMPLES
diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
index a85c2c2..7628193 100644
--- a/Documentation/git-commit.txt
+++ b/Documentation/git-commit.txt
@@ -359,7 +359,7 @@ When recording your own work, the contents of modified files in
your working tree are temporarily stored to a staging area
called the "index" with 'git add'. A file can be
reverted back, only in the index but not in the working tree,
-to that of the last commit with `git reset HEAD -- <file>`,
+to that of the last commit with `git restore --staged <file>`,
which effectively reverts 'git add' and prevents the changes to
this file from participating in the next commit. After building
the state to be committed incrementally with these commands,
diff --git a/Documentation/git-fast-export.txt b/Documentation/git-fast-export.txt
index 64c01ba..11427ac 100644
--- a/Documentation/git-fast-export.txt
+++ b/Documentation/git-fast-export.txt
@@ -129,6 +129,13 @@ marks the same across runs.
for intermediary filters (e.g. for rewriting commit messages
which refer to older commits, or for stripping blobs by id).
+--reencode=(yes|no|abort)::
+ Specify how to handle `encoding` header in commit objects. When
+ asking to 'abort' (which is the default), this program will die
+ when encountering such a commit object. With 'yes', the commit
+ message will be reencoded into UTF-8. With 'no', the original
+ encoding will be preserved.
+
--refspec::
Apply the specified refspec to each ref exported. Multiple of them can
be specified.
diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt
index d65cdb3..7baf9e4 100644
--- a/Documentation/git-fast-import.txt
+++ b/Documentation/git-fast-import.txt
@@ -388,6 +388,7 @@ change to the project.
original-oid?
('author' (SP <name>)? SP LT <email> GT SP <when> LF)?
'committer' (SP <name>)? SP LT <email> GT SP <when> LF
+ ('encoding' SP <encoding>)?
data
('from' SP <commit-ish> LF)?
('merge' SP <commit-ish> LF)?
@@ -455,6 +456,12 @@ that was selected by the --date-format=<fmt> command-line option.
See ``Date Formats'' above for the set of supported formats, and
their syntax.
+`encoding`
+^^^^^^^^^^
+The optional `encoding` command indicates the encoding of the commit
+message. Most commits are UTF-8 and the encoding is omitted, but this
+allows importing commit messages into git without first reencoding them.
+
`from`
^^^^^^
The `from` command is used to specify the commit to initialize
diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index 774cecc..6dcd39f 100644
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -214,6 +214,11 @@ symref::
`:lstrip` and `:rstrip` options in the same way as `refname`
above.
+worktreepath::
+ The absolute path to the worktree in which the ref is checked
+ out, if it is checked out in any linked worktree. Empty string
+ otherwise.
+
In addition to the above, for commit and tag objects, the header
field names (`tree`, `parent`, `object`, `type`, and `tag`) can
be used to specify the value in the header field.
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 1af85d4..b9b97e6 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -22,7 +22,8 @@ SYNOPSIS
[--rfc] [--subject-prefix=Subject-Prefix]
[(--reroll-count|-v) <n>]
[--to=<email>] [--cc=<email>]
- [--[no-]cover-letter] [--quiet] [--notes[=<ref>]]
+ [--[no-]cover-letter] [--quiet]
+ [--no-notes | --notes[=<ref>]]
[--interdiff=<previous>]
[--range-diff=<previous> [--creation-factor=<percent>]]
[--progress]
@@ -263,6 +264,7 @@ material (this may change in the future).
for details.
--notes[=<ref>]::
+--no-notes::
Append the notes (see linkgit:git-notes[1]) for the commit
after the three-dash line.
+
@@ -273,6 +275,9 @@ these explanations after `format-patch` has run but before sending,
keeping them as Git notes allows them to be maintained between versions
of the patch series (but see the discussion of the `notes.rewrite`
configuration options in linkgit:git-notes[1] to use this workflow).
++
+The default is `--no-notes`, unless the `format.notes` configuration is
+set.
--[no-]signature=<signature>::
Add a signature to each message produced. Per RFC 3676 the signature
@@ -421,8 +426,8 @@ One way to test if your MUA is set up correctly is:
* Apply it:
$ git fetch <project> master:test-apply
- $ git checkout test-apply
- $ git reset --hard
+ $ git switch test-apply
+ $ git restore --source=HEAD --staged --worktree :/
$ git am a.patch
If it does not apply correctly, there can be various reasons.
diff --git a/Documentation/git-hash-object.txt b/Documentation/git-hash-object.txt
index 814e744..df9e2c5 100644
--- a/Documentation/git-hash-object.txt
+++ b/Documentation/git-hash-object.txt
@@ -18,9 +18,7 @@ Computes the object ID value for an object with specified type
with the contents of the named file (which can be outside of the
work tree), and optionally writes the resulting object into the
object database. Reports its object ID to its standard output.
-This is used by 'git cvsimport' to update the index
-without modifying files in the work tree. When <type> is not
-specified, it defaults to "blob".
+When <type> is not specified, it defaults to "blob".
OPTIONS
-------
diff --git a/Documentation/git-merge-base.txt b/Documentation/git-merge-base.txt
index 9f07f4f..261d5c1 100644
--- a/Documentation/git-merge-base.txt
+++ b/Documentation/git-merge-base.txt
@@ -149,7 +149,7 @@ instead.
Discussion on fork-point mode
-----------------------------
-After working on the `topic` branch created with `git checkout -b
+After working on the `topic` branch created with `git switch -c
topic origin/master`, the history of remote-tracking branch
`origin/master` may have been rewound and rebuilt, leading to a
history of this shape:
diff --git a/Documentation/git-merge.txt b/Documentation/git-merge.txt
index 6294dbc..01fd52d 100644
--- a/Documentation/git-merge.txt
+++ b/Documentation/git-merge.txt
@@ -13,8 +13,7 @@ SYNOPSIS
[-s <strategy>] [-X <strategy-option>] [-S[<keyid>]]
[--[no-]allow-unrelated-histories]
[--[no-]rerere-autoupdate] [-m <msg>] [-F <file>] [<commit>...]
-'git merge' --abort
-'git merge' --continue
+'git merge' (--continue | --abort | --quit)
DESCRIPTION
-----------
@@ -88,6 +87,11 @@ will be appended to the specified message.
Allow the rerere mechanism to update the index with the
result of auto-conflict resolution if possible.
+--overwrite-ignore::
+--no-overwrite-ignore::
+ Silently overwrite ignored files from the merge result. This
+ is the default behavior. Use `--no-overwrite-ignore` to abort.
+
--abort::
Abort the current conflict resolution process, and
try to reconstruct the pre-merge state.
@@ -100,6 +104,10 @@ commit or stash your changes before running 'git merge'.
'git merge --abort' is equivalent to 'git reset --merge' when
`MERGE_HEAD` is present.
+--quit::
+ Forget about the current merge in progress. Leave the index
+ and the working tree as-is.
+
--continue::
After a 'git merge' stops due to conflicts you can conclude the
merge by running 'git merge --continue' (see "HOW TO RESOLVE
diff --git a/Documentation/git-multi-pack-index.txt b/Documentation/git-multi-pack-index.txt
index f7778a2..233b2b7 100644
--- a/Documentation/git-multi-pack-index.txt
+++ b/Documentation/git-multi-pack-index.txt
@@ -9,7 +9,7 @@ git-multi-pack-index - Write and verify multi-pack-indexes
SYNOPSIS
--------
[verse]
-'git multi-pack-index' [--object-dir=<dir>] <verb>
+'git multi-pack-index' [--object-dir=<dir>] <subcommand>
DESCRIPTION
-----------
@@ -23,13 +23,35 @@ OPTIONS
`<dir>/packs/multi-pack-index` for the current MIDX file, and
`<dir>/packs` for the pack-files to index.
+The following subcommands are available:
+
write::
- When given as the verb, write a new MIDX file to
- `<dir>/packs/multi-pack-index`.
+ Write a new MIDX file.
verify::
- When given as the verb, verify the contents of the MIDX file
- at `<dir>/packs/multi-pack-index`.
+ Verify the contents of the MIDX file.
+
+expire::
+ Delete the pack-files that are tracked by the MIDX file, but
+ have no objects referenced by the MIDX. Rewrite the MIDX file
+ afterward to remove all references to these pack-files.
+
+repack::
+ Create a new pack-file containing objects in small pack-files
+ referenced by the multi-pack-index. If the size given by the
+ `--batch-size=<size>` argument is zero, then create a pack
+ containing all objects referenced by the multi-pack-index. For
+ a non-zero batch size, Select the pack-files by examining packs
+ from oldest-to-newest, computing the "expected size" by counting
+ the number of objects in the pack referenced by the
+ multi-pack-index, then divide by the total number of objects in
+ the pack and multiply by the pack size. We select packs with
+ expected size below the batch size until the set of packs have
+ total expected size at least the batch size. If the total size
+ does not reach the batch size, then do nothing. If a new pack-
+ file is created, rewrite the multi-pack-index to reference the
+ new pack-file. A later run of 'git multi-pack-index expire' will
+ delete the pack-files that were part of this batch.
EXAMPLES
diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 5e4e927..6156609 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -12,12 +12,12 @@ SYNOPSIS
[<upstream> [<branch>]]
'git rebase' [-i | --interactive] [<options>] [--exec <cmd>] [--onto <newbase>]
--root [<branch>]
-'git rebase' --continue | --skip | --abort | --quit | --edit-todo | --show-current-patch
+'git rebase' (--continue | --skip | --abort | --quit | --edit-todo | --show-current-patch)
DESCRIPTION
-----------
If <branch> is specified, 'git rebase' will perform an automatic
-`git checkout <branch>` before doing anything else. Otherwise
+`git switch <branch>` before doing anything else. Otherwise
it remains on the current branch.
If <upstream> is not specified, the upstream configured in
diff --git a/Documentation/git-remote.txt b/Documentation/git-remote.txt
index 0cad37f..9659abb 100644
--- a/Documentation/git-remote.txt
+++ b/Documentation/git-remote.txt
@@ -230,7 +230,7 @@ $ git branch -r
staging/master
staging/staging-linus
staging/staging-next
-$ git checkout -b staging staging/master
+$ git switch -c staging staging/master
...
------------
diff --git a/Documentation/git-rerere.txt b/Documentation/git-rerere.txt
index 95763d7..4cfc883 100644
--- a/Documentation/git-rerere.txt
+++ b/Documentation/git-rerere.txt
@@ -91,7 +91,7 @@ For such a test, you need to merge master and topic somehow.
One way to do it is to pull master into the topic branch:
------------
- $ git checkout topic
+ $ git switch topic
$ git merge master
o---*---o---+ topic
@@ -113,10 +113,10 @@ the upstream might have been advanced since the test merge `+`,
in which case the final commit graph would look like this:
------------
- $ git checkout topic
+ $ git switch topic
$ git merge master
$ ... work on both topic and master branches
- $ git checkout master
+ $ git switch master
$ git merge topic
o---*---o---+---o---o topic
@@ -136,11 +136,11 @@ merges, you could blow away the test merge, and keep building on
top of the tip before the test merge:
------------
- $ git checkout topic
+ $ git switch topic
$ git merge master
$ git reset --hard HEAD^ ;# rewind the test merge
$ ... work on both topic and master branches
- $ git checkout master
+ $ git switch master
$ git merge topic
o---*---o-------o---o topic
diff --git a/Documentation/git-reset.txt b/Documentation/git-reset.txt
index 26e746c..97e0544 100644
--- a/Documentation/git-reset.txt
+++ b/Documentation/git-reset.txt
@@ -25,12 +25,13 @@ The `<tree-ish>`/`<commit>` defaults to `HEAD` in all forms.
the current branch.)
+
This means that `git reset <paths>` is the opposite of `git add
-<paths>`.
+<paths>`. This command is equivalent to
+`git restore [--source=<tree-ish>] --staged <paths>...`.
+
After running `git reset <paths>` to update the index entry, you can
-use linkgit:git-checkout[1] to check the contents out of the index to
-the working tree.
-Alternatively, using linkgit:git-checkout[1] and specifying a commit, you
+use linkgit:git-restore[1] to check the contents out of the index to
+the working tree. Alternatively, using linkgit:git-restore[1]
+and specifying a commit with `--source`, you
can copy the contents of a path out of a commit to the index and to the
working tree in one go.
@@ -86,8 +87,8 @@ but carries forward unmerged index entries.
changes, reset is aborted.
--
-If you want to undo a commit other than the latest on a branch,
-linkgit:git-revert[1] is your friend.
+See "Reset, restore and revert" in linkgit:git[1] for the differences
+between the three commands.
OPTIONS
@@ -149,9 +150,9 @@ See also the `--amend` option to linkgit:git-commit[1].
Undo a commit, making it a topic branch::
+
------------
-$ git branch topic/wip <1>
-$ git reset --hard HEAD~3 <2>
-$ git checkout topic/wip <3>
+$ git branch topic/wip <1>
+$ git reset --hard HEAD~3 <2>
+$ git switch topic/wip <3>
------------
+
<1> You have made some commits, but realize they were premature
@@ -232,13 +233,13 @@ working tree are not in any shape to be committed yet, but you
need to get to the other branch for a quick bugfix.
+
------------
-$ git checkout feature ;# you were working in "feature" branch and
-$ work work work ;# got interrupted
+$ git switch feature ;# you were working in "feature" branch and
+$ work work work ;# got interrupted
$ git commit -a -m "snapshot WIP" <1>
-$ git checkout master
+$ git switch master
$ fix fix fix
$ git commit ;# commit with real log
-$ git checkout feature
+$ git switch feature
$ git reset --soft HEAD^ ;# go back to WIP state <2>
$ git reset <3>
------------
@@ -279,18 +280,18 @@ reset it while keeping the changes in your working tree.
+
------------
$ git tag start
-$ git checkout -b branch1
+$ git switch -c branch1
$ edit
$ git commit ... <1>
$ edit
-$ git checkout -b branch2 <2>
+$ git switch -c branch2 <2>
$ git reset --keep start <3>
------------
+
<1> This commits your first edits in `branch1`.
<2> In the ideal world, you could have realized that the earlier
commit did not belong to the new topic when you created and switched
- to `branch2` (i.e. `git checkout -b branch2 start`), but nobody is
+ to `branch2` (i.e. `git switch -c branch2 start`), but nobody is
perfect.
<3> But you can use `reset --keep` to remove the unwanted commit after
you switched to `branch2`.
diff --git a/Documentation/git-restore.txt b/Documentation/git-restore.txt
new file mode 100644
index 0000000..d90093f
--- /dev/null
+++ b/Documentation/git-restore.txt
@@ -0,0 +1,185 @@
+git-restore(1)
+==============
+
+NAME
+----
+git-restore - Restore working tree files
+
+SYNOPSIS
+--------
+[verse]
+'git restore' [<options>] [--source=<tree>] [--staged] [--worktree] <pathspec>...
+'git restore' (-p|--patch) [<options>] [--source=<tree>] [--staged] [--worktree] [<pathspec>...]
+
+DESCRIPTION
+-----------
+Restore specified paths in the working tree with some contents from a
+restore source. If a path is tracked but does not exist in the restore
+source, it will be removed to match the source.
+
+The command can also be used to restore the content in the index with
+`--staged`, or restore both the working tree and the index with
+`--staged --worktree`.
+
+By default, the restore sources for working tree and the index are the
+index and `HEAD` respectively. `--source` could be used to specify a
+commit as the restore source.
+
+See "Reset, restore and revert" in linkgit:git[1] for the differences
+between the three commands.
+
+THIS COMMAND IS EXPERIMENTAL. THE BEHAVIOR MAY CHANGE.
+
+OPTIONS
+-------
+-s <tree>::
+--source=<tree>::
+ Restore the working tree files with the content from the given
+ tree. It is common to specify the source tree by naming a
+ commit, branch or tag associated with it.
++
+If not specified, the default restore source for the working tree is
+the index, and the default restore source for the index index is
+`HEAD`. When both `--staged` and `--worktree` are specified,
+`--source` must also be specified.
+
+-p::
+--patch::
+ Interactively select hunks in the difference between the
+ restore source and the restore location. See the ``Interactive
+ Mode'' section of linkgit:git-add[1] to learn how to operate
+ the `--patch` mode.
++
+Note that `--patch` can accept no pathspec and will prompt to restore
+all modified paths.
+
+-W::
+--worktree::
+-S::
+--staged::
+ Specify the restore location. If neither option is specified,
+ by default the working tree is restored. Specifying `--staged`
+ will only restore the index. Specifying both restores both.
+
+-q::
+--quiet::
+ Quiet, suppress feedback messages. Implies `--no-progress`.
+
+--progress::
+--no-progress::
+ Progress status is reported on the standard error stream
+ by default when it is attached to a terminal, unless `--quiet`
+ is specified. This flag enables progress reporting even if not
+ attached to a terminal, regardless of `--quiet`.
+
+--ours::
+--theirs::
+ When restoring files in the working tree from the index, use
+ stage #2 ('ours') or #3 ('theirs') for unmerged paths.
++
+Note that during `git rebase` and `git pull --rebase`, 'ours' and
+'theirs' may appear swapped. See the explanation of the same options
+in linkgit:git-checkout[1] for details.
+
+-m::
+--merge::
+ When restoring files on the working tree from the index,
+ recreate the conflicted merge in the unmerged paths.
+
+--conflict=<style>::
+ The same as `--merge` option above, but changes the way the
+ conflicting hunks are presented, overriding the
+ `merge.conflictStyle` configuration variable. Possible values
+ are "merge" (default) and "diff3" (in addition to what is
+ shown by "merge" style, shows the original contents).
+
+--ignore-unmerged::
+ When restoring files on the working tree from the index, do
+ not abort the operation if there are unmerged entries and
+ neither `--ours`, `--theirs`, `--merge` or `--conflict` is
+ specified. Unmerged paths on the working tree are left alone.
+
+--ignore-skip-worktree-bits::
+ In sparse checkout mode, by default is to only update entries
+ matched by `<pathspec>` and sparse patterns in
+ $GIT_DIR/info/sparse-checkout. This option ignores the sparse
+ patterns and unconditionally restores any files in
+ `<pathspec>`.
+
+--overlay::
+--no-overlay::
+ In overlay mode, the command never removes files when
+ restoring. In no-overlay mode, tracked files that do not
+ appear in the `--source` tree are removed, to make them match
+ `<tree>` exactly. The default is no-overlay mode.
+
+EXAMPLES
+--------
+
+The following sequence switches to the `master` branch, reverts the
+`Makefile` to two revisions back, deletes hello.c by mistake, and gets
+it back from the index.
+
+------------
+$ git switch master
+$ git restore --source master~2 Makefile <1>
+$ rm -f hello.c
+$ git restore hello.c <2>
+------------
+
+<1> take a file out of another commit
+<2> restore hello.c from the index
+
+If you want to restore _all_ C source files to match the version in
+the index, you can say
+
+------------
+$ git restore '*.c'
+------------
+
+Note the quotes around `*.c`. The file `hello.c` will also be
+restored, even though it is no longer in the working tree, because the
+file globbing is used to match entries in the index (not in the
+working tree by the shell).
+
+To restore all files in the current directory
+
+------------
+$ git restore .
+------------
+
+or to restore all working tree files with 'top' pathspec magic (see
+linkgit:gitglossary[7])
+
+------------
+$ git restore :/
+------------
+
+To restore a file in the index to match the version in `HEAD` (this is
+the same as using linkgit:git-reset[1])
+
+------------
+$ git restore --staged hello.c
+------------
+
+or you can restore both the index and the working tree (this the same
+as using linkgit:git-checkout[1])
+
+------------
+$ git restore --source=HEAD --staged --worktree hello.c
+------------
+
+or the short form which is more practical but less readable:
+
+------------
+$ git restore -s@ -SW hello.c
+------------
+
+SEE ALSO
+--------
+linkgit:git-checkout[1],
+linkgit:git-reset[1]
+
+GIT
+---
+Part of the linkgit:git[1] suite
diff --git a/Documentation/git-rev-list.txt b/Documentation/git-rev-list.txt
index 88609ff..9392760 100644
--- a/Documentation/git-rev-list.txt
+++ b/Documentation/git-rev-list.txt
@@ -48,6 +48,7 @@ SYNOPSIS
[ --date=<format>]
[ [ --objects | --objects-edge | --objects-edge-aggressive ]
[ --unpacked ]
+ [ --object-names | --no-object-names ]
[ --filter=<filter-spec> [ --filter-print-omitted ] ] ]
[ --missing=<missing-action> ]
[ --pretty | --header ]
diff --git a/Documentation/git-revert.txt b/Documentation/git-revert.txt
index 0c82ca5..9d22270 100644
--- a/Documentation/git-revert.txt
+++ b/Documentation/git-revert.txt
@@ -9,9 +9,7 @@ SYNOPSIS
--------
[verse]
'git revert' [--[no-]edit] [-n] [-m parent-number] [-s] [-S[<keyid>]] <commit>...
-'git revert' --continue
-'git revert' --quit
-'git revert' --abort
+'git revert' (--continue | --skip | --abort | --quit)
DESCRIPTION
-----------
@@ -26,10 +24,13 @@ effect of some earlier commits (often only a faulty one). If you want to
throw away all uncommitted changes in your working directory, you
should see linkgit:git-reset[1], particularly the `--hard` option. If
you want to extract specific files as they were in another commit, you
-should see linkgit:git-checkout[1], specifically the `git checkout
-<commit> -- <filename>` syntax. Take care with these alternatives as
+should see linkgit:git-restore[1], specifically the `--source`
+option. Take care with these alternatives as
both will discard uncommitted changes in your working directory.
+See "Reset, restore and revert" in linkgit:git[1] for the differences
+between the three commands.
+
OPTIONS
-------
<commit>...::
diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt
index 1afe9fc..d93e5d0 100644
--- a/Documentation/git-send-email.txt
+++ b/Documentation/git-send-email.txt
@@ -278,6 +278,14 @@ must be used for each option.
Automating
~~~~~~~~~~
+--no-[to|cc|bcc]::
+ Clears any list of "To:", "Cc:", "Bcc:" addresses previously
+ set via config.
+
+--no-identity::
+ Clears the previously read value of `sendemail.identity` set
+ via config, if any.
+
--to-cmd=<command>::
Specify a command to execute once per patch file which
should generate patch file specific "To:" entries.
@@ -500,8 +508,12 @@ app-specific or your regular password as appropriate. If you have credential
helper configured (see linkgit:git-credential[1]), the password will be saved in
the credential store so you won't have to type it the next time.
-Note: the following perl modules are required
- Net::SMTP::SSL, MIME::Base64 and Authen::SASL
+Note: the following core Perl modules that may be installed with your
+distribution of Perl are required:
+MIME::Base64, MIME::QuotedPrint, Net::Domain and Net::SMTP.
+These additional Perl modules are also required:
+Authen::SASL and Mail::Address.
+
SEE ALSO
--------
diff --git a/Documentation/git-stash.txt b/Documentation/git-stash.txt
index e31ea7d..8fbe12c 100644
--- a/Documentation/git-stash.txt
+++ b/Documentation/git-stash.txt
@@ -235,12 +235,12 @@ return to your original branch to make the emergency fix, like this:
+
----------------------------------------------------------------
# ... hack hack hack ...
-$ git checkout -b my_wip
+$ git switch -c my_wip
$ git commit -a -m "WIP"
-$ git checkout master
+$ git switch master
$ edit emergency fix
$ git commit -a -m "Fix in a hurry"
-$ git checkout my_wip
+$ git switch my_wip
$ git reset --soft HEAD^
# ... continue hacking ...
----------------------------------------------------------------
@@ -293,7 +293,8 @@ SEE ALSO
linkgit:git-checkout[1],
linkgit:git-commit[1],
linkgit:git-reflog[1],
-linkgit:git-reset[1]
+linkgit:git-reset[1],
+linkgit:git-switch[1]
GIT
---
diff --git a/Documentation/git-switch.txt b/Documentation/git-switch.txt
new file mode 100644
index 0000000..1979003
--- /dev/null
+++ b/Documentation/git-switch.txt
@@ -0,0 +1,273 @@
+git-switch(1)
+=============
+
+NAME
+----
+git-switch - Switch branches
+
+SYNOPSIS
+--------
+[verse]
+'git switch' [<options>] [--no-guess] <branch>
+'git switch' [<options>] --detach [<start-point>]
+'git switch' [<options>] (-c|-C) <new-branch> [<start-point>]
+'git switch' [<options>] --orphan <new-branch>
+
+DESCRIPTION
+-----------
+Switch to a specified branch. The working tree and the index are
+updated to match the branch. All new commits will be added to the tip
+of this branch.
+
+Optionally a new branch could be created with either `-c`, `-C`,
+automatically from a remote branch of same name (see `--guess`), or
+detach the working tree from any branch with `--detach`, along with
+switching.
+
+Switching branches does not require a clean index and working tree
+(i.e. no differences compared to `HEAD`). The operation is aborted
+however if the operation leads to loss of local changes, unless told
+otherwise with `--discard-changes` or `--merge`.
+
+THIS COMMAND IS EXPERIMENTAL. THE BEHAVIOR MAY CHANGE.
+
+OPTIONS
+-------
+<branch>::
+ Branch to switch to.
+
+<new-branch>::
+ Name for the new branch.
+
+<start-point>::
+ The starting point for the new branch. Specifying a
+ `<start-point>` allows you to create a branch based on some
+ other point in history than where HEAD currently points. (Or,
+ in the case of `--detach`, allows you to inspect and detach
+ from some other point.)
++
+You can use the `@{-N}` syntax to refer to the N-th last
+branch/commit switched to using "git switch" or "git checkout"
+operation. You may also specify `-` which is synonymous to `@{-1}`.
+This is often used to switch quickly between two branches, or to undo
+a branch switch by mistake.
++
+As a special case, you may use `A...B` as a shortcut for the merge
+base of `A` and `B` if there is exactly one merge base. You can leave
+out at most one of `A` and `B`, in which case it defaults to `HEAD`.
+
+-c <new-branch>::
+--create <new-branch>::
+ Create a new branch named `<new-branch>` starting at
+ `<start-point>` before switching to the branch. This is a
+ convenient shortcut for:
++
+------------
+$ git branch <new-branch>
+$ git switch <new-branch>
+------------
+
+-C <new-branch>::
+--force-create <new-branch>::
+ Similar to `--create` except that if `<new-branch>` already
+ exists, it will be reset to `<start-point>`. This is a
+ convenient shortcut for:
++
+------------
+$ git branch -f <new-branch>
+$ git switch <new-branch>
+------------
+
+-d::
+--detach::
+ Switch to a commit for inspection and discardable
+ experiments. See the "DETACHED HEAD" section in
+ linkgit:git-checkout[1] for details.
+
+--guess::
+--no-guess::
+ If `<branch>` is not found but there does exist a tracking
+ branch in exactly one remote (call it `<remote>`) with a
+ matching name, treat as equivalent to
++
+------------
+$ git switch -c <branch> --track <remote>/<branch>
+------------
++
+If the branch exists in multiple remotes and one of them is named by
+the `checkout.defaultRemote` configuration variable, we'll use that
+one for the purposes of disambiguation, even if the `<branch>` isn't
+unique across all remotes. Set it to e.g. `checkout.defaultRemote=origin`
+to always checkout remote branches from there if `<branch>` is
+ambiguous but exists on the 'origin' remote. See also
+`checkout.defaultRemote` in linkgit:git-config[1].
++
+`--guess` is the default behavior. Use `--no-guess` to disable it.
+
+-f::
+--force::
+ An alias for `--discard-changes`.
+
+--discard-changes::
+ Proceed even if the index or the working tree differs from
+ `HEAD`. Both the index and working tree are restored to match
+ the switching target. If `--recurse-submodules` is specified,
+ submodule content is also restored to match the switching
+ target. This is used to throw away local changes.
+
+-m::
+--merge::
+ If you have local modifications to one or more files that are
+ different between the current branch and the branch to which
+ you are switching, the command refuses to switch branches in
+ order to preserve your modifications in context. However,
+ with this option, a three-way merge between the current
+ branch, your working tree contents, and the new branch is
+ done, and you will be on the new branch.
++
+When a merge conflict happens, the index entries for conflicting
+paths are left unmerged, and you need to resolve the conflicts
+and mark the resolved paths with `git add` (or `git rm` if the merge
+should result in deletion of the path).
+
+--conflict=<style>::
+ The same as `--merge` option above, but changes the way the
+ conflicting hunks are presented, overriding the
+ `merge.conflictStyle` configuration variable. Possible values are
+ "merge" (default) and "diff3" (in addition to what is shown by
+ "merge" style, shows the original contents).
+
+-q::
+--quiet::
+ Quiet, suppress feedback messages.
+
+--progress::
+--no-progress::
+ Progress status is reported on the standard error stream
+ by default when it is attached to a terminal, unless `--quiet`
+ is specified. This flag enables progress reporting even if not
+ attached to a terminal, regardless of `--quiet`.
+
+-t::
+--track::
+ When creating a new branch, set up "upstream" configuration.
+ `-c` is implied. See `--track` in linkgit:git-branch[1] for
+ details.
++
+If no `-c` option is given, the name of the new branch will be derived
+from the remote-tracking branch, by looking at the local part of the
+refspec configured for the corresponding remote, and then stripping
+the initial part up to the "*". This would tell us to use `hack` as
+the local branch when branching off of `origin/hack` (or
+`remotes/origin/hack`, or even `refs/remotes/origin/hack`). If the
+given name has no slash, or the above guessing results in an empty
+name, the guessing is aborted. You can explicitly give a name with
+`-c` in such a case.
+
+--no-track::
+ Do not set up "upstream" configuration, even if the
+ `branch.autoSetupMerge` configuration variable is true.
+
+--orphan <new-branch>::
+ Create a new 'orphan' branch, named `<new-branch>`. All
+ tracked files are removed.
+
+--ignore-other-worktrees::
+ `git switch` refuses when the wanted ref is already
+ checked out by another worktree. This option makes it check
+ the ref out anyway. In other words, the ref can be held by
+ more than one worktree.
+
+--recurse-submodules::
+--no-recurse-submodules::
+ Using `--recurse-submodules` will update the content of all
+ initialized submodules according to the commit recorded in the
+ superproject. If nothing (or `--no-recurse-submodules`) is
+ used, the work trees of submodules will not be updated. Just
+ like linkgit:git-submodule[1], this will detach `HEAD` of the
+ submodules.
+
+EXAMPLES
+--------
+
+The following command switches to the "master" branch:
+
+------------
+$ git switch master
+------------
+
+After working in the wrong branch, switching to the correct branch
+would be done using:
+
+------------
+$ git switch mytopic
+------------
+
+However, your "wrong" branch and correct "mytopic" branch may differ
+in files that you have modified locally, in which case the above
+switch would fail like this:
+
+------------
+$ git switch mytopic
+error: You have local changes to 'frotz'; not switching branches.
+------------
+
+You can give the `-m` flag to the command, which would try a three-way
+merge:
+
+------------
+$ git switch -m mytopic
+Auto-merging frotz
+------------
+
+After this three-way merge, the local modifications are _not_
+registered in your index file, so `git diff` would show you what
+changes you made since the tip of the new branch.
+
+To switch back to the previous branch before we switched to mytopic
+(i.e. "master" branch):
+
+------------
+$ git switch -
+------------
+
+You can grow a new branch from any commit. For example, switch to
+"HEAD~3" and create branch "fixup":
+
+------------
+$ git switch -c fixup HEAD~3
+Switched to a new branch 'fixup'
+------------
+
+If you want to start a new branch from a remote branch of the same
+name:
+
+------------
+$ git switch new-topic
+Branch 'new-topic' set up to track remote branch 'new-topic' from 'origin'
+Switched to a new branch 'new-topic'
+------------
+
+To check out commit `HEAD~3` for temporary inspection or experiment
+without creating a new branch:
+
+------------
+$ git switch --detach HEAD~3
+HEAD is now at 9fc9555312 Merge branch 'cc/shared-index-permbits'
+------------
+
+If it turns out whatever you have done is worth keeping, you can
+always create a new name for it (without switching away):
+
+------------
+$ git switch -c good-surprises
+------------
+
+SEE ALSO
+--------
+linkgit:git-checkout[1],
+linkgit:git-branch[1]
+
+GIT
+---
+Part of the linkgit:git[1] suite
diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index a74e7b9..2e5599a 100644
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -64,6 +64,13 @@ OPTIONS
-s::
--sign::
Make a GPG-signed tag, using the default e-mail address's key.
+ The default behavior of tag GPG-signing is controlled by `tag.gpgSign`
+ configuration variable if it exists, or disabled oder otherwise.
+ See linkgit:git-config[1].
+
+--no-sign::
+ Override `tag.gpgSign` configuration variable that is
+ set to force each and every tag to be signed.
-u <keyid>::
--local-user=<keyid>::
diff --git a/Documentation/git-update-server-info.txt b/Documentation/git-update-server-info.txt
index bd0e364..969bb2e 100644
--- a/Documentation/git-update-server-info.txt
+++ b/Documentation/git-update-server-info.txt
@@ -9,7 +9,7 @@ git-update-server-info - Update auxiliary info file to help dumb servers
SYNOPSIS
--------
[verse]
-'git update-server-info' [--force]
+'git update-server-info'
DESCRIPTION
-----------
@@ -19,15 +19,6 @@ $GIT_OBJECT_DIRECTORY/info directories to help clients discover
what references and packs the server has. This command
generates such auxiliary files.
-
-OPTIONS
--------
-
--f::
---force::
- Update the info files from scratch.
-
-
OUTPUT
------
diff --git a/Documentation/git.txt b/Documentation/git.txt
index 6ddc1e2..9b82564 100644
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -33,7 +33,8 @@ individual Git commands with "git help command". linkgit:gitcli[7]
manual page gives you an overview of the command-line command syntax.
A formatted and hyperlinked copy of the latest Git documentation
-can be viewed at `https://git.github.io/htmldocs/git.html`.
+can be viewed at https://git.github.io/htmldocs/git.html
+or https://git-scm.com/docs.
OPTIONS
@@ -56,7 +57,8 @@ help ...`.
Run as if git was started in '<path>' instead of the current working
directory. When multiple `-C` options are given, each subsequent
non-absolute `-C <path>` is interpreted relative to the preceding `-C
- <path>`.
+ <path>`. If '<path>' is present but empty, e.g. `-C ""`, then the
+ current working directory is left unchanged.
+
This option affects options that expect path name like `--git-dir` and
`--work-tree` in that their interpretations of the path names would be
@@ -210,6 +212,26 @@ people via patch over e-mail.
include::cmds-foreignscminterface.txt[]
+Reset, restore and revert
+~~~~~~~~~~~~~~~~~~~~~~~~~
+There are three commands with similar names: `git reset`,
+`git restore` and `git revert`.
+
+* linkgit:git-revert[1] is about making a new commit that reverts the
+ changes made by other commits.
+
+* linkgit:git-restore[1] is about restoring files in the working tree
+ from either the index or another commit. This command does not
+ update your branch. The command can also be used to restore files in
+ the index from another commit.
+
+* linkgit:git-reset[1] is about updating your branch, moving the tip
+ in order to add or remove commits from the branch. This operation
+ changes the commit history.
++
+`git reset` can also be used to restore the index, overlapping with
+`git restore`.
+
Low-level commands (plumbing)
-----------------------------
diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt
index 4fb20cd..fb1d188 100644
--- a/Documentation/gitattributes.txt
+++ b/Documentation/gitattributes.txt
@@ -112,7 +112,8 @@ Checking-out and checking-in
These attributes affect how the contents stored in the
repository are copied to the working tree files when commands
-such as 'git checkout' and 'git merge' run. They also affect how
+such as 'git switch', 'git checkout' and 'git merge' run.
+They also affect how
Git stores the contents you prepare in the working tree in the
repository upon 'git add' and 'git commit'.
@@ -819,7 +820,7 @@ patterns are available:
- `java` suitable for source code in the Java language.
-- `matlab` suitable for source code in the MATLAB language.
+- `matlab` suitable for source code in the MATLAB and Octave languages.
- `objc` suitable for source code in the Objective-C language.
@@ -833,6 +834,8 @@ patterns are available:
- `ruby` suitable for source code in the Ruby language.
+- `rust` suitable for source code in the Rust language.
+
- `tex` suitable for source code for LaTeX documents.
diff --git a/Documentation/gitcli.txt b/Documentation/gitcli.txt
index 592e06d..1ed3ca3 100644
--- a/Documentation/gitcli.txt
+++ b/Documentation/gitcli.txt
@@ -47,8 +47,8 @@ disambiguating `--` at appropriate places.
things:
+
--------------------------------
-$ git checkout -- *.c
-$ git checkout -- \*.c
+$ git restore *.c
+$ git restore \*.c
--------------------------------
+
The former lets your shell expand the fileglob, and you are asking
@@ -209,6 +209,18 @@ See also http://marc.info/?l=git&m=116563135620359 and
http://marc.info/?l=git&m=119150393620273 for further
information.
+Some other commands that also work on files in the working tree and/or
+in the index can take `--staged` and/or `--worktree`.
+
+* `--staged` is exactly like `--cached`, which is used to ask a
+ command to only work on the index, not the working tree.
+
+* `--worktree` is the opposite, to ask a command to work on the
+ working tree only, not the index.
+
+* The two options can be specified together to ask a command to work
+ on both the index and the working tree.
+
GIT
---
Part of the linkgit:git[1] suite
diff --git a/Documentation/gitcore-tutorial.txt b/Documentation/gitcore-tutorial.txt
index e29a9ef..f880d21 100644
--- a/Documentation/gitcore-tutorial.txt
+++ b/Documentation/gitcore-tutorial.txt
@@ -741,7 +741,7 @@ used earlier, and create a branch in it. You do that by simply just
saying that you want to check out a new branch:
------------
-$ git checkout -b mybranch
+$ git switch -c mybranch
------------
will create a new branch based at the current `HEAD` position, and switch
@@ -755,7 +755,7 @@ just telling 'git checkout' what the base of the checkout would be.
In other words, if you have an earlier tag or branch, you'd just do
------------
-$ git checkout -b mybranch earlier-commit
+$ git switch -c mybranch earlier-commit
------------
and it would create the new branch `mybranch` at the earlier commit,
@@ -765,7 +765,7 @@ and check out the state at that time.
You can always just jump back to your original `master` branch by doing
------------
-$ git checkout master
+$ git switch master
------------
(or any other branch-name, for that matter) and if you forget which
@@ -794,7 +794,7 @@ $ git branch <branchname> [startingpoint]
which will simply _create_ the branch, but will not do anything further.
You can then later -- once you decide that you want to actually develop
-on that branch -- switch to that branch with a regular 'git checkout'
+on that branch -- switch to that branch with a regular 'git switch'
with the branchname as the argument.
@@ -808,7 +808,7 @@ being the same as the original `master` branch, let's make sure we're in
that branch, and do some work there.
------------------------------------------------
-$ git checkout mybranch
+$ git switch mybranch
$ echo "Work, work, work" >>hello
$ git commit -m "Some work." -i hello
------------------------------------------------
@@ -825,7 +825,7 @@ does some work in the original branch, and simulate that by going back
to the master branch, and editing the same file differently there:
------------
-$ git checkout master
+$ git switch master
------------
Here, take a moment to look at the contents of `hello`, and notice how they
@@ -958,7 +958,7 @@ to the `master` branch. Let's go back to `mybranch`, and run
'git merge' to get the "upstream changes" back to your branch.
------------
-$ git checkout mybranch
+$ git switch mybranch
$ git merge -m "Merge upstream changes." master
------------
@@ -1133,9 +1133,8 @@ Remember, before running 'git merge', our `master` head was at
work." commit.
------------
-$ git checkout mybranch
-$ git reset --hard master^2
-$ git checkout master
+$ git switch -C mybranch master^2
+$ git switch master
$ git reset --hard master^
------------
diff --git a/Documentation/giteveryday.txt b/Documentation/giteveryday.txt
index 9f2528f..1bd919f 100644
--- a/Documentation/giteveryday.txt
+++ b/Documentation/giteveryday.txt
@@ -41,7 +41,7 @@ following commands.
* linkgit:git-log[1] to see what happened.
- * linkgit:git-checkout[1] and linkgit:git-branch[1] to switch
+ * linkgit:git-switch[1] and linkgit:git-branch[1] to switch
branches.
* linkgit:git-add[1] to manage the index file.
@@ -51,8 +51,7 @@ following commands.
* linkgit:git-commit[1] to advance the current branch.
- * linkgit:git-reset[1] and linkgit:git-checkout[1] (with
- pathname parameters) to undo changes.
+ * linkgit:git-restore[1] to undo changes.
* linkgit:git-merge[1] to merge between local branches.
@@ -80,9 +79,9 @@ $ git tag v2.43 <2>
Create a topic branch and develop.::
+
------------
-$ git checkout -b alsa-audio <1>
+$ git switch -c alsa-audio <1>
$ edit/compile/test
-$ git checkout -- curses/ux_audio_oss.c <2>
+$ git restore curses/ux_audio_oss.c <2>
$ git add curses/ux_audio_alsa.c <3>
$ edit/compile/test
$ git diff HEAD <4>
@@ -90,7 +89,7 @@ $ git commit -a -s <5>
$ edit/compile/test
$ git diff HEAD^ <6>
$ git commit -a --amend <7>
-$ git checkout master <8>
+$ git switch master <8>
$ git merge alsa-audio <9>
$ git log --since='3 days ago' <10>
$ git log v2.43.. curses/ <11>
@@ -148,11 +147,11 @@ Clone the upstream and work on it. Feed changes to upstream.::
------------
$ git clone git://git.kernel.org/pub/scm/.../torvalds/linux-2.6 my2.6
$ cd my2.6
-$ git checkout -b mine master <1>
+$ git switch -c mine master <1>
$ edit/compile/test; git commit -a -s <2>
$ git format-patch master <3>
$ git send-email --to="person <email@example.com>" 00*.patch <4>
-$ git checkout master <5>
+$ git switch master <5>
$ git pull <6>
$ git log -p ORIG_HEAD.. arch/i386 include/asm-i386 <7>
$ git ls-remote --heads http://git.kernel.org/.../jgarzik/libata-dev.git <8>
@@ -194,7 +193,7 @@ satellite$ edit/compile/test/commit
satellite$ git push origin <4>
mothership$ cd frotz
-mothership$ git checkout master
+mothership$ git switch master
mothership$ git merge satellite/master <5>
------------
+
@@ -216,7 +215,7 @@ machine into the master branch.
Branch off of a specific tag.::
+
------------
-$ git checkout -b private2.6.14 v2.6.14 <1>
+$ git switch -c private2.6.14 v2.6.14 <1>
$ edit/compile/test; git commit -a
$ git checkout master
$ git cherry-pick v2.6.14..private2.6.14 <2>
@@ -274,14 +273,14 @@ $ mailx <3>
& s 2 3 4 5 ./+to-apply
& s 7 8 ./+hold-linus
& q
-$ git checkout -b topic/one master
+$ git switch -c topic/one master
$ git am -3 -i -s ./+to-apply <4>
$ compile/test
-$ git checkout -b hold/linus && git am -3 -i -s ./+hold-linus <5>
-$ git checkout topic/one && git rebase master <6>
-$ git checkout pu && git reset --hard next <7>
+$ git switch -c hold/linus && git am -3 -i -s ./+hold-linus <5>
+$ git switch topic/one && git rebase master <6>
+$ git switch -C pu next <7>
$ git merge topic/one topic/two && git merge hold/linus <8>
-$ git checkout maint
+$ git switch maint
$ git cherry-pick master~4 <9>
$ compile/test
$ git tag -s -m "GIT 0.99.9x" v0.99.9x <10>
diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt
index 786e778..82cd573 100644
--- a/Documentation/githooks.txt
+++ b/Documentation/githooks.txt
@@ -165,12 +165,13 @@ rebased, and is not set when rebasing the current branch.
post-checkout
~~~~~~~~~~~~~
-This hook is invoked when a linkgit:git-checkout[1] is run after having updated the
+This hook is invoked when a linkgit:git-checkout[1] or
+linkgit:git-switch[1] is run after having updated the
worktree. The hook is given three parameters: the ref of the previous HEAD,
the ref of the new HEAD (which may or may not have changed), and a flag
indicating whether the checkout was a branch checkout (changing branches,
flag=1) or a file checkout (retrieving a file from the index, flag=0).
-This hook cannot affect the outcome of `git checkout`.
+This hook cannot affect the outcome of `git switch` or `git checkout`.
It is also run after linkgit:git-clone[1], unless the `--no-checkout` (`-n`) option is
used. The first parameter given to the hook is the null-ref, the second the
@@ -406,7 +407,8 @@ exit with a zero status.
For example, the hook can simply run `git read-tree -u -m HEAD "$1"`
in order to emulate `git fetch` that is run in the reverse direction
with `git push`, as the two-tree form of `git read-tree -u -m` is
-essentially the same as `git checkout` that switches branches while
+essentially the same as `git switch` or `git checkout`
+that switches branches while
keeping the local changes in the working tree that do not interfere
with the difference between the branches.
diff --git a/Documentation/gitignore.txt b/Documentation/gitignore.txt
index b5bc9db..d47b1ae 100644
--- a/Documentation/gitignore.txt
+++ b/Documentation/gitignore.txt
@@ -89,28 +89,28 @@ PATTERN FORMAT
Put a backslash ("`\`") in front of the first "`!`" for patterns
that begin with a literal "`!`", for example, "`\!important!.txt`".
- - If the pattern ends with a slash, it is removed for the
- purpose of the following description, but it would only find
- a match with a directory. In other words, `foo/` will match a
- directory `foo` and paths underneath it, but will not match a
- regular file or a symbolic link `foo` (this is consistent
- with the way how pathspec works in general in Git).
-
- - If the pattern does not contain a slash '/', Git treats it as
- a shell glob pattern and checks for a match against the
- pathname relative to the location of the `.gitignore` file
- (relative to the toplevel of the work tree if not from a
- `.gitignore` file).
-
- - Otherwise, Git treats the pattern as a shell glob: "`*`" matches
- anything except "`/`", "`?`" matches any one character except "`/`"
- and "`[]`" matches one character in a selected range. See
- fnmatch(3) and the FNM_PATHNAME flag for a more detailed
- description.
-
- - A leading slash matches the beginning of the pathname.
- For example, "/{asterisk}.c" matches "cat-file.c" but not
- "mozilla-sha1/sha1.c".
+ - The slash '/' is used as the directory separator. Separators may
+ occur at the beginning, middle or end of the `.gitignore` search pattern.
+
+ - If there is a separator at the beginning or middle (or both) of the
+ pattern, then the pattern is relative to the directory level of the
+ particular `.gitignore` file itself. Otherwise the pattern may also
+ match at any level below the `.gitignore` level.
+
+ - If there is a separator at the end of the pattern then the pattern
+ will only match directories, otherwise the pattern can match both
+ files and directories.
+
+ - For example, a pattern `doc/frotz/` matches `doc/frotz` directory,
+ but not `a/doc/frotz` directory; however `frotz/` matches `frotz`
+ and `a/frotz` that is a directory (all paths are relative from
+ the `.gitignore` file).
+
+ - An asterisk "`*`" matches anything except a slash.
+ The character "`?`" matches any one character except "`/`".
+ The range notation, e.g. `[a-zA-Z]`, can be used to match
+ one of the characters in a range. See fnmatch(3) and the
+ FNM_PATHNAME flag for a more detailed description.
Two consecutive asterisks ("`**`") in patterns matched against
full pathname may have special meaning:
@@ -152,6 +152,28 @@ To stop tracking a file that is currently tracked, use
EXAMPLES
--------
+ - The pattern `hello.*` matches any file or folder
+ whose name begins with `hello`. If one wants to restrict
+ this only to the directory and not in its subdirectories,
+ one can prepend the pattern with a slash, i.e. `/hello.*`;
+ the pattern now matches `hello.txt`, `hello.c` but not
+ `a/hello.java`.
+
+ - The pattern `foo/` will match a directory `foo` and
+ paths underneath it, but will not match a regular file
+ or a symbolic link `foo` (this is consistent with the
+ way how pathspec works in general in Git)
+
+ - The pattern `doc/frotz` and `/doc/frotz` have the same effect
+ in any `.gitignore` file. In other words, a leading slash
+ is not relevant if there is already a middle slash in
+ the pattern.
+
+ - The pattern "foo/*", matches "foo/test.json"
+ (a regular file), "foo/bar" (a directory), but it does not match
+ "foo/bar/hello.c" (a regular file), as the asterisk in the
+ pattern does not match "bar/hello.c" which has a slash in it.
+
--------------------------------------------------------------
$ git status
[...]
diff --git a/Documentation/gittutorial-2.txt b/Documentation/gittutorial-2.txt
index e0976f6..8bdb7d0 100644
--- a/Documentation/gittutorial-2.txt
+++ b/Documentation/gittutorial-2.txt
@@ -370,13 +370,13 @@ situation:
$ git status
On branch master
Changes to be committed:
- (use "git reset HEAD <file>..." to unstage)
+ (use "git restore --staged <file>..." to unstage)
new file: closing.txt
Changes not staged for commit:
(use "git add <file>..." to update what will be committed)
- (use "git checkout -- <file>..." to discard changes in working directory)
+ (use "git restore <file>..." to discard changes in working directory)
modified: file.txt
diff --git a/Documentation/gittutorial.txt b/Documentation/gittutorial.txt
index 242de31..59ef5ce 100644
--- a/Documentation/gittutorial.txt
+++ b/Documentation/gittutorial.txt
@@ -110,7 +110,7 @@ $ git status
On branch master
Changes to be committed:
Your branch is up to date with 'origin/master'.
- (use "git reset HEAD <file>..." to unstage)
+ (use "git restore --staged <file>..." to unstage)
modified: file1
modified: file2
@@ -207,7 +207,7 @@ automatically. The asterisk marks the branch you are currently on;
type
------------------------------------------------
-$ git checkout experimental
+$ git switch experimental
------------------------------------------------
to switch to the experimental branch. Now edit a file, commit the
@@ -216,7 +216,7 @@ change, and switch back to the master branch:
------------------------------------------------
(edit file)
$ git commit -a
-$ git checkout master
+$ git switch master
------------------------------------------------
Check that the change you made is no longer visible, since it was
diff --git a/Documentation/gitweb.txt b/Documentation/gitweb.txt
index c743609..3cc9b03 100644
--- a/Documentation/gitweb.txt
+++ b/Documentation/gitweb.txt
@@ -28,8 +28,7 @@ Gitweb provides a web interface to Git repositories. Its features include:
revisions one at a time, viewing the history of the repository.
* Finding commits which commit messages matches given search term.
-See http://git.kernel.org/?p=git/git.git;a=tree;f=gitweb[] or
-http://repo.or.cz/w/git.git/tree/HEAD:/gitweb/[] for gitweb source code,
+See http://repo.or.cz/w/git.git/tree/HEAD:/gitweb/[] for gitweb source code,
browsed using gitweb itself.
diff --git a/Documentation/gitworkflows.txt b/Documentation/gitworkflows.txt
index ca11c7b..abc0dc6 100644
--- a/Documentation/gitworkflows.txt
+++ b/Documentation/gitworkflows.txt
@@ -301,8 +301,7 @@ topics on 'next':
.Rewind and rebuild next
[caption="Recipe: "]
=====================================
-* `git checkout next`
-* `git reset --hard master`
+* `git switch -C next master`
* `git merge ai/topic_in_next1`
* `git merge ai/topic_in_next2`
* ...
diff --git a/Documentation/merge-options.txt b/Documentation/merge-options.txt
index 61876db..79a00d2 100644
--- a/Documentation/merge-options.txt
+++ b/Documentation/merge-options.txt
@@ -102,6 +102,8 @@ merge.
+
With --no-squash perform the merge and commit the result. This
option can be used to override --squash.
++
+With --squash, --commit is not allowed, and will fail.
-s <strategy>::
--strategy=<strategy>::
diff --git a/Documentation/rev-list-options.txt b/Documentation/rev-list-options.txt
index 71a1fcc..bb1251c 100644
--- a/Documentation/rev-list-options.txt
+++ b/Documentation/rev-list-options.txt
@@ -182,6 +182,14 @@ explicitly.
Pretend as if all objects mentioned by reflogs are listed on the
command line as `<commit>`.
+--alternate-refs::
+ Pretend as if all objects mentioned as ref tips of alternate
+ repositories were listed on the command line. An alternate
+ repository is any repository whose object directory is specified
+ in `objects/info/alternates`. The set of included objects may
+ be modified by `core.alternateRefsCommand`, etc. See
+ linkgit:git-config[1].
+
--single-worktree::
By default, all working trees will be examined by the
following options when there are more than one (see
@@ -708,6 +716,16 @@ ifdef::git-rev-list[]
Only useful with `--objects`; print the object IDs that are not
in packs.
+--object-names::
+ Only useful with `--objects`; print the names of the object IDs
+ that are found. This is the default behavior.
+
+--no-object-names::
+ Only useful with `--objects`; does not print the names of the object
+ IDs that are found. This inverts `--object-names`. This flag allows
+ the output to be more easily parsed by commands such as
+ linkgit:git-cat-file[1].
+
--filter=<filter-spec>::
Only useful with one of the `--objects*`; omits objects (usually
blobs) from the list of printed objects. The '<filter-spec>'
diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt
index 82c1e57..97f995e 100644
--- a/Documentation/revisions.txt
+++ b/Documentation/revisions.txt
@@ -115,7 +115,7 @@ Here's an example to make it more clear:
------------------------------
$ git config push.default current
$ git config remote.pushdefault myfork
-$ git checkout -b mybranch origin/master
+$ git switch -c mybranch origin/master
$ git rev-parse --symbolic-full-name @{upstream}
refs/remotes/origin/master
diff --git a/Documentation/sequencer.txt b/Documentation/sequencer.txt
index 5a57c4a..3bceb56 100644
--- a/Documentation/sequencer.txt
+++ b/Documentation/sequencer.txt
@@ -3,6 +3,10 @@
`.git/sequencer`. Can be used to continue after resolving
conflicts in a failed cherry-pick or revert.
+--skip::
+ Skip the current commit and continue with the rest of the
+ sequence.
+
--quit::
Forget about the current operation in progress. Can be used
to clear the sequencer state after a failed cherry-pick or
diff --git a/Documentation/technical/api-trace2.txt b/Documentation/technical/api-trace2.txt
index 23c3cc7..71eb081 100644
--- a/Documentation/technical/api-trace2.txt
+++ b/Documentation/technical/api-trace2.txt
@@ -35,7 +35,7 @@ Format details are given in a later section.
=== The Normal Format Target
The normal format target is a tradition printf format and similar
-to GIT_TRACE format. This format is enabled with the `GIT_TR`
+to GIT_TRACE format. This format is enabled with the `GIT_TRACE2`
environment variable or the `trace2.normalTarget` system or global
config setting.
@@ -668,7 +668,7 @@ completed.)
"event":"signal",
...
"t_abs":0.001227, # elapsed time in seconds
- "signal":13 # SIGTERM, SIGINT, etc.
+ "signo":13 # SIGTERM, SIGINT, etc.
}
------------
diff --git a/Documentation/technical/commit-graph-format.txt b/Documentation/technical/commit-graph-format.txt
index 16452a0..a4f1744 100644
--- a/Documentation/technical/commit-graph-format.txt
+++ b/Documentation/technical/commit-graph-format.txt
@@ -44,8 +44,9 @@ HEADER:
1-byte number (C) of "chunks"
- 1-byte (reserved for later use)
- Current clients should ignore this value.
+ 1-byte number (B) of base commit-graphs
+ We infer the length (H*B) of the Base Graphs chunk
+ from this value.
CHUNK LOOKUP:
@@ -92,6 +93,12 @@ CHUNK DATA:
positions for the parents until reaching a value with the most-significant
bit on. The other bits correspond to the position of the last parent.
+ Base Graphs List (ID: {'B', 'A', 'S', 'E'}) [Optional]
+ This list of H-byte hashes describe a set of B commit-graph files that
+ form a commit-graph chain. The graph position for the ith commit in this
+ file's OID Lookup chunk is equal to i plus the number of commits in all
+ base graphs. If B is non-zero, this chunk must exist.
+
TRAILER:
H-byte HASH-checksum of all of the above.
diff --git a/Documentation/technical/commit-graph.txt b/Documentation/technical/commit-graph.txt
index 7805b09..729fbcb 100644
--- a/Documentation/technical/commit-graph.txt
+++ b/Documentation/technical/commit-graph.txt
@@ -127,22 +127,196 @@ Design Details
helpful for these clones, anyway. The commit-graph will not be read or
written when shallow commits are present.
-Future Work
------------
-
-- After computing and storing generation numbers, we must make graph
- walks aware of generation numbers to gain the performance benefits they
- enable. This will mostly be accomplished by swapping a commit-date-ordered
- priority queue with one ordered by generation number. The following
- operations are important candidates:
-
- - 'log --topo-order'
- - 'tag --merged'
-
-- A server could provide a commit-graph file as part of the network protocol
- to avoid extra calculations by clients. This feature is only of benefit if
- the user is willing to trust the file, because verifying the file is correct
- is as hard as computing it from scratch.
+Commit Graphs Chains
+--------------------
+
+Typically, repos grow with near-constant velocity (commits per day). Over time,
+the number of commits added by a fetch operation is much smaller than the
+number of commits in the full history. By creating a "chain" of commit-graphs,
+we enable fast writes of new commit data without rewriting the entire commit
+history -- at least, most of the time.
+
+## File Layout
+
+A commit-graph chain uses multiple files, and we use a fixed naming convention
+to organize these files. Each commit-graph file has a name
+`$OBJDIR/info/commit-graphs/graph-{hash}.graph` where `{hash}` is the hex-
+valued hash stored in the footer of that file (which is a hash of the file's
+contents before that hash). For a chain of commit-graph files, a plain-text
+file at `$OBJDIR/info/commit-graphs/commit-graph-chain` contains the
+hashes for the files in order from "lowest" to "highest".
+
+For example, if the `commit-graph-chain` file contains the lines
+
+```
+ {hash0}
+ {hash1}
+ {hash2}
+```
+
+then the commit-graph chain looks like the following diagram:
+
+ +-----------------------+
+ | graph-{hash2}.graph |
+ +-----------------------+
+ |
+ +-----------------------+
+ | |
+ | graph-{hash1}.graph |
+ | |
+ +-----------------------+
+ |
+ +-----------------------+
+ | |
+ | |
+ | |
+ | graph-{hash0}.graph |
+ | |
+ | |
+ | |
+ +-----------------------+
+
+Let X0 be the number of commits in `graph-{hash0}.graph`, X1 be the number of
+commits in `graph-{hash1}.graph`, and X2 be the number of commits in
+`graph-{hash2}.graph`. If a commit appears in position i in `graph-{hash2}.graph`,
+then we interpret this as being the commit in position (X0 + X1 + i), and that
+will be used as its "graph position". The commits in `graph-{hash2}.graph` use these
+positions to refer to their parents, which may be in `graph-{hash1}.graph` or
+`graph-{hash0}.graph`. We can navigate to an arbitrary commit in position j by checking
+its containment in the intervals [0, X0), [X0, X0 + X1), [X0 + X1, X0 + X1 +
+X2).
+
+Each commit-graph file (except the base, `graph-{hash0}.graph`) contains data
+specifying the hashes of all files in the lower layers. In the above example,
+`graph-{hash1}.graph` contains `{hash0}` while `graph-{hash2}.graph` contains
+`{hash0}` and `{hash1}`.
+
+## Merging commit-graph files
+
+If we only added a new commit-graph file on every write, we would run into a
+linear search problem through many commit-graph files. Instead, we use a merge
+strategy to decide when the stack should collapse some number of levels.
+
+The diagram below shows such a collapse. As a set of new commits are added, it
+is determined by the merge strategy that the files should collapse to
+`graph-{hash1}`. Thus, the new commits, the commits in `graph-{hash2}` and
+the commits in `graph-{hash1}` should be combined into a new `graph-{hash3}`
+file.
+
+ +---------------------+
+ | |
+ | (new commits) |
+ | |
+ +---------------------+
+ | |
+ +-----------------------+ +---------------------+
+ | graph-{hash2} |->| |
+ +-----------------------+ +---------------------+
+ | | |
+ +-----------------------+ +---------------------+
+ | | | |
+ | graph-{hash1} |->| |
+ | | | |
+ +-----------------------+ +---------------------+
+ | tmp_graphXXX
+ +-----------------------+
+ | |
+ | |
+ | |
+ | graph-{hash0} |
+ | |
+ | |
+ | |
+ +-----------------------+
+
+During this process, the commits to write are combined, sorted and we write the
+contents to a temporary file, all while holding a `commit-graph-chain.lock`
+lock-file. When the file is flushed, we rename it to `graph-{hash3}`
+according to the computed `{hash3}`. Finally, we write the new chain data to
+`commit-graph-chain.lock`:
+
+```
+ {hash3}
+ {hash0}
+```
+
+We then close the lock-file.
+
+## Merge Strategy
+
+When writing a set of commits that do not exist in the commit-graph stack of
+height N, we default to creating a new file at level N + 1. We then decide to
+merge with the Nth level if one of two conditions hold:
+
+ 1. `--size-multiple=<X>` is specified or X = 2, and the number of commits in
+ level N is less than X times the number of commits in level N + 1.
+
+ 2. `--max-commits=<C>` is specified with non-zero C and the number of commits
+ in level N + 1 is more than C commits.
+
+This decision cascades down the levels: when we merge a level we create a new
+set of commits that then compares to the next level.
+
+The first condition bounds the number of levels to be logarithmic in the total
+number of commits. The second condition bounds the total number of commits in
+a `graph-{hashN}` file and not in the `commit-graph` file, preventing
+significant performance issues when the stack merges and another process only
+partially reads the previous stack.
+
+The merge strategy values (2 for the size multiple, 64,000 for the maximum
+number of commits) could be extracted into config settings for full
+flexibility.
+
+## Deleting graph-{hash} files
+
+After a new tip file is written, some `graph-{hash}` files may no longer
+be part of a chain. It is important to remove these files from disk, eventually.
+The main reason to delay removal is that another process could read the
+`commit-graph-chain` file before it is rewritten, but then look for the
+`graph-{hash}` files after they are deleted.
+
+To allow holding old split commit-graphs for a while after they are unreferenced,
+we update the modified times of the files when they become unreferenced. Then,
+we scan the `$OBJDIR/info/commit-graphs/` directory for `graph-{hash}`
+files whose modified times are older than a given expiry window. This window
+defaults to zero, but can be changed using command-line arguments or a config
+setting.
+
+## Chains across multiple object directories
+
+In a repo with alternates, we look for the `commit-graph-chain` file starting
+in the local object directory and then in each alternate. The first file that
+exists defines our chain. As we look for the `graph-{hash}` files for
+each `{hash}` in the chain file, we follow the same pattern for the host
+directories.
+
+This allows commit-graphs to be split across multiple forks in a fork network.
+The typical case is a large "base" repo with many smaller forks.
+
+As the base repo advances, it will likely update and merge its commit-graph
+chain more frequently than the forks. If a fork updates their commit-graph after
+the base repo, then it should "reparent" the commit-graph chain onto the new
+chain in the base repo. When reading each `graph-{hash}` file, we track
+the object directory containing it. During a write of a new commit-graph file,
+we check for any changes in the source object directory and read the
+`commit-graph-chain` file for that source and create a new file based on those
+files. During this "reparent" operation, we necessarily need to collapse all
+levels in the fork, as all of the files are invalid against the new base file.
+
+It is crucial to be careful when cleaning up "unreferenced" `graph-{hash}.graph`
+files in this scenario. It falls to the user to define the proper settings for
+their custom environment:
+
+ 1. When merging levels in the base repo, the unreferenced files may still be
+ referenced by chains from fork repos.
+
+ 2. The expiry time should be set to a length of time such that every fork has
+ time to recompute their commit-graph chain to "reparent" onto the new base
+ file(s).
+
+ 3. If the commit-graph chain is updated in the base, the fork will not have
+ access to the new chain until its chain is updated to reference those files.
+ (This may change in the future [5].)
Related Links
-------------
@@ -170,3 +344,7 @@ Related Links
[4] https://public-inbox.org/git/20180108154822.54829-1-git@jeffhostetler.com/T/#u
A patch to remove the ahead-behind calculation from 'status'.
+
+[5] https://public-inbox.org/git/f27db281-abad-5043-6d71-cbb083b1c877@gmail.com/
+ A discussion of a "two-dimensional graph position" that can allow reading
+ multiple commit-graph chains at the same time.
diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt
index eff7890..8bce75b 100644
--- a/Documentation/user-manual.txt
+++ b/Documentation/user-manual.txt
@@ -122,10 +122,10 @@ Tags are expected to always point at the same version of a project,
while heads are expected to advance as development progresses.
Create a new branch head pointing to one of these versions and check it
-out using linkgit:git-checkout[1]:
+out using linkgit:git-switch[1]:
------------------------------------------------
-$ git checkout -b new v2.6.13
+$ git switch -c new v2.6.13
------------------------------------------------
The working directory then reflects the contents that the project had
@@ -282,10 +282,10 @@ a summary of the commands:
this command will fail with a warning.
`git branch -D <branch>`::
delete the branch `<branch>` irrespective of its merged status.
-`git checkout <branch>`::
+`git switch <branch>`::
make the current branch `<branch>`, updating the working
directory to reflect the version referenced by `<branch>`.
-`git checkout -b <new> <start-point>`::
+`git switch -c <new> <start-point>`::
create a new branch `<new>` referencing `<start-point>`, and
check it out.
@@ -302,22 +302,22 @@ ref: refs/heads/master
Examining an old version without creating a new branch
------------------------------------------------------
-The `git checkout` command normally expects a branch head, but will also
-accept an arbitrary commit; for example, you can check out the commit
-referenced by a tag:
+The `git switch` command normally expects a branch head, but will also
+accept an arbitrary commit when invoked with --detach; for example,
+you can check out the commit referenced by a tag:
------------------------------------------------
-$ git checkout v2.6.17
+$ git switch --detach v2.6.17
Note: checking out 'v2.6.17'.
You are in 'detached HEAD' state. You can look around, make experimental
changes and commit them, and you can discard any commits you make in this
-state without impacting any branches by performing another checkout.
+state without impacting any branches by performing another switch.
If you want to create a new branch to retain commits you create, you may
-do so (now or later) by using -b with the checkout command again. Example:
+do so (now or later) by using -c with the switch command again. Example:
- git checkout -b new_branch_name
+ git switch -c new_branch_name
HEAD is now at 427abfa Linux v2.6.17
------------------------------------------------
@@ -373,7 +373,7 @@ You might want to build on one of these remote-tracking branches
on a branch of your own, just as you would for a tag:
------------------------------------------------
-$ git checkout -b my-todo-copy origin/todo
+$ git switch -c my-todo-copy origin/todo
------------------------------------------------
You can also check out `origin/todo` directly to examine it or
@@ -1408,7 +1408,7 @@ If you get stuck and decide to just give up and throw the whole mess
away, you can always return to the pre-merge state with
-------------------------------------------------
-$ git reset --hard HEAD
+$ git merge --abort
-------------------------------------------------
Or, if you've already committed the merge that you want to throw away,
@@ -1446,7 +1446,7 @@ mistake, you can return the entire working tree to the last committed
state with
-------------------------------------------------
-$ git reset --hard HEAD
+$ git restore --staged --worktree :/
-------------------------------------------------
If you make a commit that you later wish you hadn't, there are two
@@ -1523,12 +1523,10 @@ Checking out an old version of a file
In the process of undoing a previous bad change, you may find it
useful to check out an older version of a particular file using
-linkgit:git-checkout[1]. We've used `git checkout` before to switch
-branches, but it has quite different behavior if it is given a path
-name: the command
+linkgit:git-restore[1]. The command
-------------------------------------------------
-$ git checkout HEAD^ path/to/file
+$ git restore --source=HEAD^ path/to/file
-------------------------------------------------
replaces path/to/file by the contents it had in the commit HEAD^, and
@@ -2211,8 +2209,8 @@ $ git branch --track release origin/master
These can be easily kept up to date using linkgit:git-pull[1].
-------------------------------------------------
-$ git checkout test && git pull
-$ git checkout release && git pull
+$ git switch test && git pull
+$ git switch release && git pull
-------------------------------------------------
Important note! If you have any local changes in these branches, then
@@ -2264,7 +2262,7 @@ tested changes
2) help future bug hunters that use `git bisect` to find problems
-------------------------------------------------
-$ git checkout -b speed-up-spinlocks v2.6.35
+$ git switch -c speed-up-spinlocks v2.6.35
-------------------------------------------------
Now you apply the patch(es), run some tests, and commit the change(s). If
@@ -2279,7 +2277,7 @@ When you are happy with the state of this change, you can merge it into the
"test" branch in preparation to make it public:
-------------------------------------------------
-$ git checkout test && git merge speed-up-spinlocks
+$ git switch test && git merge speed-up-spinlocks
-------------------------------------------------
It is unlikely that you would have any conflicts here ... but you might if you
@@ -2291,7 +2289,7 @@ see the value of keeping each patch (or patch series) in its own branch. It
means that the patches can be moved into the `release` tree in any order.
-------------------------------------------------
-$ git checkout release && git merge speed-up-spinlocks
+$ git switch release && git merge speed-up-spinlocks
-------------------------------------------------
After a while, you will have a number of branches, and despite the
@@ -2512,7 +2510,7 @@ Suppose that you create a branch `mywork` on a remote-tracking branch
`origin`, and create some commits on top of it:
-------------------------------------------------
-$ git checkout -b mywork origin
+$ git switch -c mywork origin
$ vi file.txt
$ git commit
$ vi otherfile.txt
@@ -2552,7 +2550,7 @@ commits without any merges, you may instead choose to use
linkgit:git-rebase[1]:
-------------------------------------------------
-$ git checkout mywork
+$ git switch mywork
$ git rebase origin
-------------------------------------------------
@@ -3668,13 +3666,13 @@ change within the submodule, and then update the superproject to reference the
new commit:
-------------------------------------------------
-$ git checkout master
+$ git switch master
-------------------------------------------------
or
-------------------------------------------------
-$ git checkout -b fix-up
+$ git switch -c fix-up
-------------------------------------------------
then
@@ -3800,8 +3798,8 @@ use linkgit:git-tag[1] for both.
The Workflow
------------
-High-level operations such as linkgit:git-commit[1],
-linkgit:git-checkout[1] and linkgit:git-reset[1] work by moving data
+High-level operations such as linkgit:git-commit[1] and
+linkgit:git-restore[1] work by moving data
between the working tree, the index, and the object database. Git
provides low-level operations which perform each of these steps
individually.
@@ -4194,7 +4192,7 @@ start.
A good place to start is with the contents of the initial commit, with:
----------------------------------------------------
-$ git checkout e83c5163
+$ git switch --detach e83c5163
----------------------------------------------------
The initial revision lays the foundation for almost everything Git has
@@ -4437,10 +4435,10 @@ Managing branches
-----------------
-----------------------------------------------
-$ git branch # list all local branches in this repo
-$ git checkout test # switch working directory to branch "test"
-$ git branch new # create branch "new" starting at current HEAD
-$ git branch -d new # delete branch "new"
+$ git branch # list all local branches in this repo
+$ git switch test # switch working directory to branch "test"
+$ git branch new # create branch "new" starting at current HEAD
+$ git branch -d new # delete branch "new"
-----------------------------------------------
Instead of basing a new branch on current HEAD (the default), use:
@@ -4456,7 +4454,7 @@ $ git branch new test~10 # ten commits before tip of branch "test"
Create and switch to a new branch at the same time:
-----------------------------------------------
-$ git checkout -b new v2.6.15
+$ git switch -c new v2.6.15
-----------------------------------------------
Update and examine branches from the repository you cloned from:
@@ -4467,7 +4465,7 @@ $ git branch -r # list
origin/master
origin/next
...
-$ git checkout -b masterwork origin/master
+$ git switch -c masterwork origin/master
-----------------------------------------------
Fetch a branch from a different repository, and give it a new
diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 67f86b3..122f647 100755
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
#!/bin/sh
GVF=GIT-VERSION-FILE
-DEF_VER=v2.22.0
+DEF_VER=v2.22.GIT
LF='
'
diff --git a/Makefile b/Makefile
index 8a7e235..b11cdd4 100644
--- a/Makefile
+++ b/Makefile
@@ -265,10 +265,6 @@ all::
#
# Define NO_DEFLATE_BOUND if your zlib does not have deflateBound.
#
-# Define NO_R_TO_GCC_LINKER if your gcc does not like "-R/path/lib"
-# that tells runtime paths to dynamic libraries;
-# "-Wl,-rpath=/path/lib" is used instead.
-#
# Define NO_NORETURN if using buggy versions of gcc 4.6+ and profile feedback,
# as the compiler can crash (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49299)
#
@@ -624,8 +620,6 @@ SCRIPT_SH += git-web--browse.sh
SCRIPT_LIB += git-mergetool--lib
SCRIPT_LIB += git-parse-remote
-SCRIPT_LIB += git-rebase--am
-SCRIPT_LIB += git-rebase--common
SCRIPT_LIB += git-rebase--preserve-merges
SCRIPT_LIB += git-sh-setup
SCRIPT_LIB += git-sh-i18n
@@ -727,6 +721,7 @@ TEST_BUILTINS_OBJS += test-lazy-init-name-hash.o
TEST_BUILTINS_OBJS += test-match-trees.o
TEST_BUILTINS_OBJS += test-mergesort.o
TEST_BUILTINS_OBJS += test-mktemp.o
+TEST_BUILTINS_OBJS += test-oidmap.o
TEST_BUILTINS_OBJS += test-online-cpus.o
TEST_BUILTINS_OBJS += test-parse-options.o
TEST_BUILTINS_OBJS += test-path-utils.o
@@ -777,9 +772,11 @@ BUILT_INS += git-format-patch$X
BUILT_INS += git-fsck-objects$X
BUILT_INS += git-init$X
BUILT_INS += git-merge-subtree$X
+BUILT_INS += git-restore$X
BUILT_INS += git-show$X
BUILT_INS += git-stage$X
BUILT_INS += git-status$X
+BUILT_INS += git-switch$X
BUILT_INS += git-whatchanged$X
# what 'all' will build and 'install' will install in gitexecdir,
@@ -1065,6 +1062,7 @@ BUILTIN_OBJS += builtin/diff-index.o
BUILTIN_OBJS += builtin/diff-tree.o
BUILTIN_OBJS += builtin/diff.o
BUILTIN_OBJS += builtin/difftool.o
+BUILTIN_OBJS += builtin/env--helper.o
BUILTIN_OBJS += builtin/fast-export.o
BUILTIN_OBJS += builtin/fetch-pack.o
BUILTIN_OBJS += builtin/fetch.o
@@ -1160,6 +1158,7 @@ endif
# which'll override these defaults.
CFLAGS = -g -O2 -Wall
LDFLAGS =
+CC_LD_DYNPATH = -Wl,-rpath,
BASIC_CFLAGS = -I.
BASIC_LDFLAGS =
@@ -1240,7 +1239,7 @@ endif
ifdef SANE_TOOL_PATH
SANE_TOOL_PATH_SQ = $(subst ','\'',$(SANE_TOOL_PATH))
-BROKEN_PATH_FIX = 's|^\# @@BROKEN_PATH_FIX@@$$|git_broken_path_fix $(SANE_TOOL_PATH_SQ)|'
+BROKEN_PATH_FIX = 's|^\# @@BROKEN_PATH_FIX@@$$|git_broken_path_fix "$(SANE_TOOL_PATH_SQ)"|'
PATH := $(SANE_TOOL_PATH):${PATH}
else
BROKEN_PATH_FIX = '/^\# @@BROKEN_PATH_FIX@@$$/d'
@@ -1290,16 +1289,6 @@ ifeq ($(uname_S),Darwin)
PTHREAD_LIBS =
endif
-ifndef CC_LD_DYNPATH
- ifdef NO_R_TO_GCC_LINKER
- # Some gcc does not accept and pass -R to the linker to specify
- # the runtime dynamic library path.
- CC_LD_DYNPATH = -Wl,-rpath,
- else
- CC_LD_DYNPATH = -R
- endif
-endif
-
ifdef NO_LIBGEN_H
COMPAT_CFLAGS += -DNO_LIBGEN_H
COMPAT_OBJS += compat/basename.o
@@ -2873,6 +2862,33 @@ install: all
$(INSTALL) $(ALL_PROGRAMS) '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
$(INSTALL) -m 644 $(SCRIPT_LIB) '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
$(INSTALL) $(install_bindir_programs) '$(DESTDIR_SQ)$(bindir_SQ)'
+ifdef MSVC
+ # We DO NOT install the individual foo.o.pdb files because they
+ # have already been rolled up into the exe's pdb file.
+ # We DO NOT have pdb files for the builtin commands (like git-status.exe)
+ # because it is just a copy/hardlink of git.exe, rather than a unique binary.
+ $(INSTALL) git.pdb '$(DESTDIR_SQ)$(bindir_SQ)'
+ $(INSTALL) git-shell.pdb '$(DESTDIR_SQ)$(bindir_SQ)'
+ $(INSTALL) git-upload-pack.pdb '$(DESTDIR_SQ)$(bindir_SQ)'
+ $(INSTALL) git-credential-store.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-daemon.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-fast-import.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-http-backend.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-http-fetch.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-http-push.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-imap-send.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-remote-http.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-remote-testsvn.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-sh-i18n--envsubst.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ $(INSTALL) git-show-index.pdb '$(DESTDIR_SQ)$(gitexec_instdir_SQ)'
+ifndef DEBUG
+ $(INSTALL) $(vcpkg_rel_bin)/*.dll '$(DESTDIR_SQ)$(bindir_SQ)'
+ $(INSTALL) $(vcpkg_rel_bin)/*.pdb '$(DESTDIR_SQ)$(bindir_SQ)'
+else
+ $(INSTALL) $(vcpkg_dbg_bin)/*.dll '$(DESTDIR_SQ)$(bindir_SQ)'
+ $(INSTALL) $(vcpkg_dbg_bin)/*.pdb '$(DESTDIR_SQ)$(bindir_SQ)'
+endif
+endif
$(MAKE) -C templates DESTDIR='$(DESTDIR_SQ)' install
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(mergetools_instdir_SQ)'
$(INSTALL) -m 644 mergetools/* '$(DESTDIR_SQ)$(mergetools_instdir_SQ)'
@@ -3085,6 +3101,19 @@ endif
$(RM) GIT-VERSION-FILE GIT-CFLAGS GIT-LDFLAGS GIT-BUILD-OPTIONS
$(RM) GIT-USER-AGENT GIT-PREFIX
$(RM) GIT-SCRIPT-DEFINES GIT-PERL-DEFINES GIT-PERL-HEADER GIT-PYTHON-VARS
+ifdef MSVC
+ $(RM) $(patsubst %.o,%.o.pdb,$(OBJECTS))
+ $(RM) $(patsubst %.exe,%.pdb,$(OTHER_PROGRAMS))
+ $(RM) $(patsubst %.exe,%.iobj,$(OTHER_PROGRAMS))
+ $(RM) $(patsubst %.exe,%.ipdb,$(OTHER_PROGRAMS))
+ $(RM) $(patsubst %.exe,%.pdb,$(PROGRAMS))
+ $(RM) $(patsubst %.exe,%.iobj,$(PROGRAMS))
+ $(RM) $(patsubst %.exe,%.ipdb,$(PROGRAMS))
+ $(RM) $(patsubst %.exe,%.pdb,$(TEST_PROGRAMS))
+ $(RM) $(patsubst %.exe,%.iobj,$(TEST_PROGRAMS))
+ $(RM) $(patsubst %.exe,%.ipdb,$(TEST_PROGRAMS))
+ $(RM) compat/vcbuild/MSVC-DEFS-GEN
+endif
.PHONY: all install profile-clean cocciclean clean strip
.PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
diff --git a/RelNotes b/RelNotes
index 0b6d9fd..248d137 120000
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes/2.22.0.txt \ No newline at end of file
+Documentation/RelNotes/2.23.0.txt \ No newline at end of file
diff --git a/advice.c b/advice.c
index ce5f374..3ee0ee2 100644
--- a/advice.c
+++ b/advice.c
@@ -3,6 +3,7 @@
#include "color.h"
#include "help.h"
+int advice_fetch_show_forced_updates = 1;
int advice_push_update_rejected = 1;
int advice_push_non_ff_current = 1;
int advice_push_non_ff_matching = 1;
@@ -12,9 +13,11 @@ int advice_push_needs_force = 1;
int advice_push_unqualified_ref_name = 1;
int advice_status_hints = 1;
int advice_status_u_option = 1;
+int advice_status_ahead_behind_warning = 1;
int advice_commit_before_merge = 1;
int advice_reset_quiet_warning = 1;
int advice_resolve_conflict = 1;
+int advice_sequencer_in_use = 1;
int advice_implicit_identity = 1;
int advice_detached_head = 1;
int advice_set_upstream_failure = 1;
@@ -59,6 +62,7 @@ static struct {
const char *name;
int *preference;
} advice_config[] = {
+ { "fetchShowForcedUpdates", &advice_fetch_show_forced_updates },
{ "pushUpdateRejected", &advice_push_update_rejected },
{ "pushNonFFCurrent", &advice_push_non_ff_current },
{ "pushNonFFMatching", &advice_push_non_ff_matching },
@@ -68,9 +72,11 @@ static struct {
{ "pushUnqualifiedRefName", &advice_push_unqualified_ref_name },
{ "statusHints", &advice_status_hints },
{ "statusUoption", &advice_status_u_option },
+ { "statusAheadBehindWarning", &advice_status_ahead_behind_warning },
{ "commitBeforeMerge", &advice_commit_before_merge },
{ "resetQuiet", &advice_reset_quiet_warning },
{ "resolveConflict", &advice_resolve_conflict },
+ { "sequencerInUse", &advice_sequencer_in_use },
{ "implicitIdentity", &advice_implicit_identity },
{ "detachedHead", &advice_detached_head },
{ "setupStreamFailure", &advice_set_upstream_failure },
@@ -193,13 +199,22 @@ void NORETURN die_conclude_merge(void)
void detach_advice(const char *new_name)
{
const char *fmt =
- _("Note: checking out '%s'.\n\n"
+ _("Note: switching to '%s'.\n"
+ "\n"
"You are in 'detached HEAD' state. You can look around, make experimental\n"
"changes and commit them, and you can discard any commits you make in this\n"
- "state without impacting any branches by performing another checkout.\n\n"
+ "state without impacting any branches by switching back to a branch.\n"
+ "\n"
"If you want to create a new branch to retain commits you create, you may\n"
- "do so (now or later) by using -b with the checkout command again. Example:\n\n"
- " git checkout -b <new-branch-name>\n\n");
+ "do so (now or later) by using -c with the switch command. Example:\n"
+ "\n"
+ " git switch -c <new-branch-name>\n"
+ "\n"
+ "Or undo this operation with:\n"
+ "\n"
+ " git switch -\n"
+ "\n"
+ "Turn off this advice by setting config variable advice.detachedHead to false\n\n");
fprintf(stderr, fmt, new_name);
}
diff --git a/advice.h b/advice.h
index e50f02c..d015404 100644
--- a/advice.h
+++ b/advice.h
@@ -3,6 +3,7 @@
#include "git-compat-util.h"
+extern int advice_fetch_show_forced_updates;
extern int advice_push_update_rejected;
extern int advice_push_non_ff_current;
extern int advice_push_non_ff_matching;
@@ -12,9 +13,11 @@ extern int advice_push_needs_force;
extern int advice_push_unqualified_ref_name;
extern int advice_status_hints;
extern int advice_status_u_option;
+extern int advice_status_ahead_behind_warning;
extern int advice_commit_before_merge;
extern int advice_reset_quiet_warning;
extern int advice_resolve_conflict;
+extern int advice_sequencer_in_use;
extern int advice_implicit_identity;
extern int advice_detached_head;
extern int advice_set_upstream_failure;
diff --git a/apply.c b/apply.c
index f15afa9..cde9536 100644
--- a/apply.c
+++ b/apply.c
@@ -22,6 +22,12 @@
#include "rerere.h"
#include "apply.h"
+struct gitdiff_data {
+ struct strbuf *root;
+ int linenr;
+ int p_value;
+};
+
static void git_apply_config(void)
{
git_config_get_string_const("apply.whitespace", &apply_default_whitespace);
@@ -201,40 +207,6 @@ struct fragment {
#define BINARY_DELTA_DEFLATED 1
#define BINARY_LITERAL_DEFLATED 2
-/*
- * This represents a "patch" to a file, both metainfo changes
- * such as creation/deletion, filemode and content changes represented
- * as a series of fragments.
- */
-struct patch {
- char *new_name, *old_name, *def_name;
- unsigned int old_mode, new_mode;
- int is_new, is_delete; /* -1 = unknown, 0 = false, 1 = true */
- int rejected;
- unsigned ws_rule;
- int lines_added, lines_deleted;
- int score;
- int extension_linenr; /* first line specifying delete/new/rename/copy */
- unsigned int is_toplevel_relative:1;
- unsigned int inaccurate_eof:1;
- unsigned int is_binary:1;
- unsigned int is_copy:1;
- unsigned int is_rename:1;
- unsigned int recount:1;
- unsigned int conflicted_threeway:1;
- unsigned int direct_to_threeway:1;
- unsigned int crlf_in_old:1;
- struct fragment *fragments;
- char *result;
- size_t resultsize;
- char old_oid_prefix[GIT_MAX_HEXSZ + 1];
- char new_oid_prefix[GIT_MAX_HEXSZ + 1];
- struct patch *next;
-
- /* three-way fallback result */
- struct object_id threeway_stage[3];
-};
-
static void free_fragment_list(struct fragment *list)
{
while (list) {
@@ -469,7 +441,7 @@ static char *squash_slash(char *name)
return name;
}
-static char *find_name_gnu(struct apply_state *state,
+static char *find_name_gnu(struct strbuf *root,
const char *line,
int p_value)
{
@@ -478,7 +450,7 @@ static char *find_name_gnu(struct apply_state *state,
/*
* Proposed "new-style" GNU patch/diff format; see
- * http://marc.info/?l=git&m=112927316408690&w=2
+ * https://public-inbox.org/git/7vll0wvb2a.fsf@assigned-by-dhcp.cox.net/
*/
if (unquote_c_style(&name, line, NULL)) {
strbuf_release(&name);
@@ -495,8 +467,8 @@ static char *find_name_gnu(struct apply_state *state,
}
strbuf_remove(&name, 0, cp - name.buf);
- if (state->root.len)
- strbuf_insert(&name, 0, state->root.buf, state->root.len);
+ if (root->len)
+ strbuf_insert(&name, 0, root->buf, root->len);
return squash_slash(strbuf_detach(&name, NULL));
}
@@ -659,7 +631,7 @@ static size_t diff_timestamp_len(const char *line, size_t len)
return line + len - end;
}
-static char *find_name_common(struct apply_state *state,
+static char *find_name_common(struct strbuf *root,
const char *line,
const char *def,
int p_value,
@@ -702,30 +674,30 @@ static char *find_name_common(struct apply_state *state,
return squash_slash(xstrdup(def));
}
- if (state->root.len) {
- char *ret = xstrfmt("%s%.*s", state->root.buf, len, start);
+ if (root->len) {
+ char *ret = xstrfmt("%s%.*s", root->buf, len, start);
return squash_slash(ret);
}
return squash_slash(xmemdupz(start, len));
}
-static char *find_name(struct apply_state *state,
+static char *find_name(struct strbuf *root,
const char *line,
char *def,
int p_value,
int terminate)
{
if (*line == '"') {
- char *name = find_name_gnu(state, line, p_value);
+ char *name = find_name_gnu(root, line, p_value);
if (name)
return name;
}
- return find_name_common(state, line, def, p_value, NULL, terminate);
+ return find_name_common(root, line, def, p_value, NULL, terminate);
}
-static char *find_name_traditional(struct apply_state *state,
+static char *find_name_traditional(struct strbuf *root,
const char *line,
char *def,
int p_value)
@@ -734,7 +706,7 @@ static char *find_name_traditional(struct apply_state *state,
size_t date_len;
if (*line == '"') {
- char *name = find_name_gnu(state, line, p_value);
+ char *name = find_name_gnu(root, line, p_value);
if (name)
return name;
}
@@ -742,10 +714,10 @@ static char *find_name_traditional(struct apply_state *state,
len = strchrnul(line, '\n') - line;
date_len = diff_timestamp_len(line, len);
if (!date_len)
- return find_name_common(state, line, def, p_value, NULL, TERM_TAB);
+ return find_name_common(root, line, def, p_value, NULL, TERM_TAB);
len -= date_len;
- return find_name_common(state, line, def, p_value, line + len, 0);
+ return find_name_common(root, line, def, p_value, line + len, 0);
}
/*
@@ -759,7 +731,7 @@ static int guess_p_value(struct apply_state *state, const char *nameline)
if (is_dev_null(nameline))
return -1;
- name = find_name_traditional(state, nameline, NULL, 0);
+ name = find_name_traditional(&state->root, nameline, NULL, 0);
if (!name)
return -1;
cp = strchr(name, '/');
@@ -883,17 +855,17 @@ static int parse_traditional_patch(struct apply_state *state,
if (is_dev_null(first)) {
patch->is_new = 1;
patch->is_delete = 0;
- name = find_name_traditional(state, second, NULL, state->p_value);
+ name = find_name_traditional(&state->root, second, NULL, state->p_value);
patch->new_name = name;
} else if (is_dev_null(second)) {
patch->is_new = 0;
patch->is_delete = 1;
- name = find_name_traditional(state, first, NULL, state->p_value);
+ name = find_name_traditional(&state->root, first, NULL, state->p_value);
patch->old_name = name;
} else {
char *first_name;
- first_name = find_name_traditional(state, first, NULL, state->p_value);
- name = find_name_traditional(state, second, first_name, state->p_value);
+ first_name = find_name_traditional(&state->root, first, NULL, state->p_value);
+ name = find_name_traditional(&state->root, second, first_name, state->p_value);
free(first_name);
if (has_epoch_timestamp(first)) {
patch->is_new = 1;
@@ -914,7 +886,7 @@ static int parse_traditional_patch(struct apply_state *state,
return 0;
}
-static int gitdiff_hdrend(struct apply_state *state,
+static int gitdiff_hdrend(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
@@ -933,14 +905,14 @@ static int gitdiff_hdrend(struct apply_state *state,
#define DIFF_OLD_NAME 0
#define DIFF_NEW_NAME 1
-static int gitdiff_verify_name(struct apply_state *state,
+static int gitdiff_verify_name(struct gitdiff_data *state,
const char *line,
int isnull,
char **name,
int side)
{
if (!*name && !isnull) {
- *name = find_name(state, line, NULL, state->p_value, TERM_TAB);
+ *name = find_name(state->root, line, NULL, state->p_value, TERM_TAB);
return 0;
}
@@ -949,7 +921,7 @@ static int gitdiff_verify_name(struct apply_state *state,
if (isnull)
return error(_("git apply: bad git-diff - expected /dev/null, got %s on line %d"),
*name, state->linenr);
- another = find_name(state, line, NULL, state->p_value, TERM_TAB);
+ another = find_name(state->root, line, NULL, state->p_value, TERM_TAB);
if (!another || strcmp(another, *name)) {
free(another);
return error((side == DIFF_NEW_NAME) ?
@@ -965,7 +937,7 @@ static int gitdiff_verify_name(struct apply_state *state,
return 0;
}
-static int gitdiff_oldname(struct apply_state *state,
+static int gitdiff_oldname(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
@@ -974,7 +946,7 @@ static int gitdiff_oldname(struct apply_state *state,
DIFF_OLD_NAME);
}
-static int gitdiff_newname(struct apply_state *state,
+static int gitdiff_newname(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
@@ -992,21 +964,21 @@ static int parse_mode_line(const char *line, int linenr, unsigned int *mode)
return 0;
}
-static int gitdiff_oldmode(struct apply_state *state,
+static int gitdiff_oldmode(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
return parse_mode_line(line, state->linenr, &patch->old_mode);
}
-static int gitdiff_newmode(struct apply_state *state,
+static int gitdiff_newmode(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
return parse_mode_line(line, state->linenr, &patch->new_mode);
}
-static int gitdiff_delete(struct apply_state *state,
+static int gitdiff_delete(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
@@ -1016,7 +988,7 @@ static int gitdiff_delete(struct apply_state *state,
return gitdiff_oldmode(state, line, patch);
}
-static int gitdiff_newfile(struct apply_state *state,
+static int gitdiff_newfile(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
@@ -1026,47 +998,47 @@ static int gitdiff_newfile(struct apply_state *state,
return gitdiff_newmode(state, line, patch);
}
-static int gitdiff_copysrc(struct apply_state *state,
+static int gitdiff_copysrc(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
patch->is_copy = 1;
free(patch->old_name);
- patch->old_name = find_name(state, line, NULL, state->p_value ? state->p_value - 1 : 0, 0);
+ patch->old_name = find_name(state->root, line, NULL, state->p_value ? state->p_value - 1 : 0, 0);
return 0;
}
-static int gitdiff_copydst(struct apply_state *state,
+static int gitdiff_copydst(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
patch->is_copy = 1;
free(patch->new_name);
- patch->new_name = find_name(state, line, NULL, state->p_value ? state->p_value - 1 : 0, 0);
+ patch->new_name = find_name(state->root, line, NULL, state->p_value ? state->p_value - 1 : 0, 0);
return 0;
}
-static int gitdiff_renamesrc(struct apply_state *state,
+static int gitdiff_renamesrc(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
patch->is_rename = 1;
free(patch->old_name);
- patch->old_name = find_name(state, line, NULL, state->p_value ? state->p_value - 1 : 0, 0);
+ patch->old_name = find_name(state->root, line, NULL, state->p_value ? state->p_value - 1 : 0, 0);
return 0;
}
-static int gitdiff_renamedst(struct apply_state *state,
+static int gitdiff_renamedst(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
patch->is_rename = 1;
free(patch->new_name);
- patch->new_name = find_name(state, line, NULL, state->p_value ? state->p_value - 1 : 0, 0);
+ patch->new_name = find_name(state->root, line, NULL, state->p_value ? state->p_value - 1 : 0, 0);
return 0;
}
-static int gitdiff_similarity(struct apply_state *state,
+static int gitdiff_similarity(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
@@ -1076,7 +1048,7 @@ static int gitdiff_similarity(struct apply_state *state,
return 0;
}
-static int gitdiff_dissimilarity(struct apply_state *state,
+static int gitdiff_dissimilarity(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
@@ -1086,7 +1058,7 @@ static int gitdiff_dissimilarity(struct apply_state *state,
return 0;
}
-static int gitdiff_index(struct apply_state *state,
+static int gitdiff_index(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
@@ -1126,7 +1098,7 @@ static int gitdiff_index(struct apply_state *state,
* This is normal for a diff that doesn't change anything: we'll fall through
* into the next diff. Tell the parser to break out.
*/
-static int gitdiff_unrecognized(struct apply_state *state,
+static int gitdiff_unrecognized(struct gitdiff_data *state,
const char *line,
struct patch *patch)
{
@@ -1137,17 +1109,17 @@ static int gitdiff_unrecognized(struct apply_state *state,
* Skip p_value leading components from "line"; as we do not accept
* absolute paths, return NULL in that case.
*/
-static const char *skip_tree_prefix(struct apply_state *state,
+static const char *skip_tree_prefix(int p_value,
const char *line,
int llen)
{
int nslash;
int i;
- if (!state->p_value)
+ if (!p_value)
return (llen && line[0] == '/') ? NULL : line;
- nslash = state->p_value;
+ nslash = p_value;
for (i = 0; i < llen; i++) {
int ch = line[i];
if (ch == '/' && --nslash <= 0)
@@ -1164,7 +1136,7 @@ static const char *skip_tree_prefix(struct apply_state *state,
* creation or deletion of an empty file. In any of these cases,
* both sides are the same name under a/ and b/ respectively.
*/
-static char *git_header_name(struct apply_state *state,
+static char *git_header_name(int p_value,
const char *line,
int llen)
{
@@ -1184,7 +1156,7 @@ static char *git_header_name(struct apply_state *state,
goto free_and_fail1;
/* strip the a/b prefix including trailing slash */
- cp = skip_tree_prefix(state, first.buf, first.len);
+ cp = skip_tree_prefix(p_value, first.buf, first.len);
if (!cp)
goto free_and_fail1;
strbuf_remove(&first, 0, cp - first.buf);
@@ -1201,7 +1173,7 @@ static char *git_header_name(struct apply_state *state,
if (*second == '"') {
if (unquote_c_style(&sp, second, NULL))
goto free_and_fail1;
- cp = skip_tree_prefix(state, sp.buf, sp.len);
+ cp = skip_tree_prefix(p_value, sp.buf, sp.len);
if (!cp)
goto free_and_fail1;
/* They must match, otherwise ignore */
@@ -1212,7 +1184,7 @@ static char *git_header_name(struct apply_state *state,
}
/* unquoted second */
- cp = skip_tree_prefix(state, second, line + llen - second);
+ cp = skip_tree_prefix(p_value, second, line + llen - second);
if (!cp)
goto free_and_fail1;
if (line + llen - cp != first.len ||
@@ -1227,7 +1199,7 @@ static char *git_header_name(struct apply_state *state,
}
/* unquoted first name */
- name = skip_tree_prefix(state, line, llen);
+ name = skip_tree_prefix(p_value, line, llen);
if (!name)
return NULL;
@@ -1243,7 +1215,7 @@ static char *git_header_name(struct apply_state *state,
if (unquote_c_style(&sp, second, NULL))
goto free_and_fail2;
- np = skip_tree_prefix(state, sp.buf, sp.len);
+ np = skip_tree_prefix(p_value, sp.buf, sp.len);
if (!np)
goto free_and_fail2;
@@ -1287,7 +1259,7 @@ static char *git_header_name(struct apply_state *state,
*/
if (!name[len + 1])
return NULL; /* no postimage name */
- second = skip_tree_prefix(state, name + len + 1,
+ second = skip_tree_prefix(p_value, name + len + 1,
line_len - (len + 1));
if (!second)
return NULL;
@@ -1302,26 +1274,28 @@ static char *git_header_name(struct apply_state *state,
}
}
-static int check_header_line(struct apply_state *state, struct patch *patch)
+static int check_header_line(int linenr, struct patch *patch)
{
int extensions = (patch->is_delete == 1) + (patch->is_new == 1) +
(patch->is_rename == 1) + (patch->is_copy == 1);
if (extensions > 1)
return error(_("inconsistent header lines %d and %d"),
- patch->extension_linenr, state->linenr);
+ patch->extension_linenr, linenr);
if (extensions && !patch->extension_linenr)
- patch->extension_linenr = state->linenr;
+ patch->extension_linenr = linenr;
return 0;
}
-/* Verify that we recognize the lines following a git header */
-static int parse_git_header(struct apply_state *state,
- const char *line,
- int len,
- unsigned int size,
- struct patch *patch)
+int parse_git_diff_header(struct strbuf *root,
+ int *linenr,
+ int p_value,
+ const char *line,
+ int len,
+ unsigned int size,
+ struct patch *patch)
{
unsigned long offset;
+ struct gitdiff_data parse_hdr_state;
/* A git diff has explicit new/delete information, so we don't guess */
patch->is_new = 0;
@@ -1333,20 +1307,24 @@ static int parse_git_header(struct apply_state *state,
* or removing or adding empty files), so we get
* the default name from the header.
*/
- patch->def_name = git_header_name(state, line, len);
- if (patch->def_name && state->root.len) {
- char *s = xstrfmt("%s%s", state->root.buf, patch->def_name);
+ patch->def_name = git_header_name(p_value, line, len);
+ if (patch->def_name && root->len) {
+ char *s = xstrfmt("%s%s", root->buf, patch->def_name);
free(patch->def_name);
patch->def_name = s;
}
line += len;
size -= len;
- state->linenr++;
- for (offset = len ; size > 0 ; offset += len, size -= len, line += len, state->linenr++) {
+ (*linenr)++;
+ parse_hdr_state.root = root;
+ parse_hdr_state.linenr = *linenr;
+ parse_hdr_state.p_value = p_value;
+
+ for (offset = len ; size > 0 ; offset += len, size -= len, line += len, (*linenr)++) {
static const struct opentry {
const char *str;
- int (*fn)(struct apply_state *, const char *, struct patch *);
+ int (*fn)(struct gitdiff_data *, const char *, struct patch *);
} optable[] = {
{ "@@ -", gitdiff_hdrend },
{ "--- ", gitdiff_oldname },
@@ -1377,10 +1355,10 @@ static int parse_git_header(struct apply_state *state,
int res;
if (len < oplen || memcmp(p->str, line, oplen))
continue;
- res = p->fn(state, line + oplen, patch);
+ res = p->fn(&parse_hdr_state, line + oplen, patch);
if (res < 0)
return -1;
- if (check_header_line(state, patch))
+ if (check_header_line(*linenr, patch))
return -1;
if (res > 0)
return offset;
@@ -1561,7 +1539,9 @@ static int find_header(struct apply_state *state,
* or mode change, so we handle that specially
*/
if (!memcmp("diff --git ", line, 11)) {
- int git_hdr_len = parse_git_header(state, line, len, size, patch);
+ int git_hdr_len = parse_git_diff_header(&state->root, &state->linenr,
+ state->p_value, line, len,
+ size, patch);
if (git_hdr_len < 0)
return -128;
if (git_hdr_len <= len)
@@ -4310,7 +4290,7 @@ static int add_index_file(struct apply_state *state,
"created file '%s'"),
path);
}
- fill_stat_cache_info(ce, &st);
+ fill_stat_cache_info(state->repo->index, ce, &st);
}
if (write_object_file(buf, size, blob_type, &ce->oid) < 0) {
discard_cache_entry(ce);
diff --git a/apply.h b/apply.h
index 5948348..a795193 100644
--- a/apply.h
+++ b/apply.h
@@ -117,6 +117,40 @@ struct apply_state {
int applied_after_fixing_ws;
};
+/*
+ * This represents a "patch" to a file, both metainfo changes
+ * such as creation/deletion, filemode and content changes represented
+ * as a series of fragments.
+ */
+struct patch {
+ char *new_name, *old_name, *def_name;
+ unsigned int old_mode, new_mode;
+ int is_new, is_delete; /* -1 = unknown, 0 = false, 1 = true */
+ int rejected;
+ unsigned ws_rule;
+ int lines_added, lines_deleted;
+ int score;
+ int extension_linenr; /* first line specifying delete/new/rename/copy */
+ unsigned int is_toplevel_relative:1;
+ unsigned int inaccurate_eof:1;
+ unsigned int is_binary:1;
+ unsigned int is_copy:1;
+ unsigned int is_rename:1;
+ unsigned int recount:1;
+ unsigned int conflicted_threeway:1;
+ unsigned int direct_to_threeway:1;
+ unsigned int crlf_in_old:1;
+ struct fragment *fragments;
+ char *result;
+ size_t resultsize;
+ char old_oid_prefix[GIT_MAX_HEXSZ + 1];
+ char new_oid_prefix[GIT_MAX_HEXSZ + 1];
+ struct patch *next;
+
+ /* three-way fallback result */
+ struct object_id threeway_stage[3];
+};
+
int apply_parse_options(int argc, const char **argv,
struct apply_state *state,
int *force_apply, int *options,
@@ -128,6 +162,20 @@ void clear_apply_state(struct apply_state *state);
int check_apply_state(struct apply_state *state, int force_apply);
/*
+ * Parse a git diff header, starting at line. Fills the relevant
+ * metadata information in 'struct patch'.
+ *
+ * Returns -1 on failure, the length of the parsed header otherwise.
+ */
+int parse_git_diff_header(struct strbuf *root,
+ int *linenr,
+ int p_value,
+ const char *line,
+ int len,
+ unsigned int size,
+ struct patch *patch);
+
+/*
* Some aspects of the apply behavior are controlled by the following
* bits in the "options" parameter passed to apply_all_patches().
*/
diff --git a/archive.c b/archive.c
index 53141c1..a8da0fc 100644
--- a/archive.c
+++ b/archive.c
@@ -418,7 +418,9 @@ static void parse_treeish_arg(const char **argv,
unsigned short mode;
int err;
- err = get_tree_entry(&tree->object.oid, prefix, &tree_oid,
+ err = get_tree_entry(ar_args->repo,
+ &tree->object.oid,
+ prefix, &tree_oid,
&mode);
if (err || !S_ISDIR(mode))
die(_("current working directory is untracked"));
diff --git a/blame.c b/blame.c
index 145eaf2..36a2e7e 100644
--- a/blame.c
+++ b/blame.c
@@ -101,7 +101,7 @@ static void verify_working_tree_path(struct repository *r,
struct object_id blob_oid;
unsigned short mode;
- if (!get_tree_entry(commit_oid, path, &blob_oid, &mode) &&
+ if (!get_tree_entry(r, commit_oid, path, &blob_oid, &mode) &&
oid_object_info(r, &blob_oid, NULL) == OBJ_BLOB)
return;
}
@@ -311,12 +311,707 @@ static int diff_hunks(mmfile_t *file_a, mmfile_t *file_b,
return xdi_diff(file_a, file_b, &xpp, &xecfg, &ecb);
}
+static const char *get_next_line(const char *start, const char *end)
+{
+ const char *nl = memchr(start, '\n', end - start);
+
+ return nl ? nl + 1 : end;
+}
+
+static int find_line_starts(int **line_starts, const char *buf,
+ unsigned long len)
+{
+ const char *end = buf + len;
+ const char *p;
+ int *lineno;
+ int num = 0;
+
+ for (p = buf; p < end; p = get_next_line(p, end))
+ num++;
+
+ ALLOC_ARRAY(*line_starts, num + 1);
+ lineno = *line_starts;
+
+ for (p = buf; p < end; p = get_next_line(p, end))
+ *lineno++ = p - buf;
+
+ *lineno = len;
+
+ return num;
+}
+
+struct fingerprint_entry;
+
+/* A fingerprint is intended to loosely represent a string, such that two
+ * fingerprints can be quickly compared to give an indication of the similarity
+ * of the strings that they represent.
+ *
+ * A fingerprint is represented as a multiset of the lower-cased byte pairs in
+ * the string that it represents. Whitespace is added at each end of the
+ * string. Whitespace pairs are ignored. Whitespace is converted to '\0'.
+ * For example, the string "Darth Radar" will be converted to the following
+ * fingerprint:
+ * {"\0d", "da", "da", "ar", "ar", "rt", "th", "h\0", "\0r", "ra", "ad", "r\0"}
+ *
+ * The similarity between two fingerprints is the size of the intersection of
+ * their multisets, including repeated elements. See fingerprint_similarity for
+ * examples.
+ *
+ * For ease of implementation, the fingerprint is implemented as a map
+ * of byte pairs to the count of that byte pair in the string, instead of
+ * allowing repeated elements in a set.
+ */
+struct fingerprint {
+ struct hashmap map;
+ /* As we know the maximum number of entries in advance, it's
+ * convenient to store the entries in a single array instead of having
+ * the hashmap manage the memory.
+ */
+ struct fingerprint_entry *entries;
+};
+
+/* A byte pair in a fingerprint. Stores the number of times the byte pair
+ * occurs in the string that the fingerprint represents.
+ */
+struct fingerprint_entry {
+ /* The hashmap entry - the hash represents the byte pair in its
+ * entirety so we don't need to store the byte pair separately.
+ */
+ struct hashmap_entry entry;
+ /* The number of times the byte pair occurs in the string that the
+ * fingerprint represents.
+ */
+ int count;
+};
+
+/* See `struct fingerprint` for an explanation of what a fingerprint is.
+ * \param result the fingerprint of the string is stored here. This must be
+ * freed later using free_fingerprint.
+ * \param line_begin the start of the string
+ * \param line_end the end of the string
+ */
+static void get_fingerprint(struct fingerprint *result,
+ const char *line_begin,
+ const char *line_end)
+{
+ unsigned int hash, c0 = 0, c1;
+ const char *p;
+ int max_map_entry_count = 1 + line_end - line_begin;
+ struct fingerprint_entry *entry = xcalloc(max_map_entry_count,
+ sizeof(struct fingerprint_entry));
+ struct fingerprint_entry *found_entry;
+
+ hashmap_init(&result->map, NULL, NULL, max_map_entry_count);
+ result->entries = entry;
+ for (p = line_begin; p <= line_end; ++p, c0 = c1) {
+ /* Always terminate the string with whitespace.
+ * Normalise whitespace to 0, and normalise letters to
+ * lower case. This won't work for multibyte characters but at
+ * worst will match some unrelated characters.
+ */
+ if ((p == line_end) || isspace(*p))
+ c1 = 0;
+ else
+ c1 = tolower(*p);
+ hash = c0 | (c1 << 8);
+ /* Ignore whitespace pairs */
+ if (hash == 0)
+ continue;
+ hashmap_entry_init(entry, hash);
+
+ found_entry = hashmap_get(&result->map, entry, NULL);
+ if (found_entry) {
+ found_entry->count += 1;
+ } else {
+ entry->count = 1;
+ hashmap_add(&result->map, entry);
+ ++entry;
+ }
+ }
+}
+
+static void free_fingerprint(struct fingerprint *f)
+{
+ hashmap_free(&f->map, 0);
+ free(f->entries);
+}
+
+/* Calculates the similarity between two fingerprints as the size of the
+ * intersection of their multisets, including repeated elements. See
+ * `struct fingerprint` for an explanation of the fingerprint representation.
+ * The similarity between "cat mat" and "father rather" is 2 because "at" is
+ * present twice in both strings while the similarity between "tim" and "mit"
+ * is 0.
+ */
+static int fingerprint_similarity(struct fingerprint *a, struct fingerprint *b)
+{
+ int intersection = 0;
+ struct hashmap_iter iter;
+ const struct fingerprint_entry *entry_a, *entry_b;
+
+ hashmap_iter_init(&b->map, &iter);
+
+ while ((entry_b = hashmap_iter_next(&iter))) {
+ if ((entry_a = hashmap_get(&a->map, entry_b, NULL))) {
+ intersection += entry_a->count < entry_b->count ?
+ entry_a->count : entry_b->count;
+ }
+ }
+ return intersection;
+}
+
+/* Subtracts byte-pair elements in B from A, modifying A in place.
+ */
+static void fingerprint_subtract(struct fingerprint *a, struct fingerprint *b)
+{
+ struct hashmap_iter iter;
+ struct fingerprint_entry *entry_a;
+ const struct fingerprint_entry *entry_b;
+
+ hashmap_iter_init(&b->map, &iter);
+
+ while ((entry_b = hashmap_iter_next(&iter))) {
+ if ((entry_a = hashmap_get(&a->map, entry_b, NULL))) {
+ if (entry_a->count <= entry_b->count)
+ hashmap_remove(&a->map, entry_b, NULL);
+ else
+ entry_a->count -= entry_b->count;
+ }
+ }
+}
+
+/* Calculate fingerprints for a series of lines.
+ * Puts the fingerprints in the fingerprints array, which must have been
+ * preallocated to allow storing line_count elements.
+ */
+static void get_line_fingerprints(struct fingerprint *fingerprints,
+ const char *content, const int *line_starts,
+ long first_line, long line_count)
+{
+ int i;
+ const char *linestart, *lineend;
+
+ line_starts += first_line;
+ for (i = 0; i < line_count; ++i) {
+ linestart = content + line_starts[i];
+ lineend = content + line_starts[i + 1];
+ get_fingerprint(fingerprints + i, linestart, lineend);
+ }
+}
+
+static void free_line_fingerprints(struct fingerprint *fingerprints,
+ int nr_fingerprints)
+{
+ int i;
+
+ for (i = 0; i < nr_fingerprints; i++)
+ free_fingerprint(&fingerprints[i]);
+}
+
+/* This contains the data necessary to linearly map a line number in one half
+ * of a diff chunk to the line in the other half of the diff chunk that is
+ * closest in terms of its position as a fraction of the length of the chunk.
+ */
+struct line_number_mapping {
+ int destination_start, destination_length,
+ source_start, source_length;
+};
+
+/* Given a line number in one range, offset and scale it to map it onto the
+ * other range.
+ * Essentially this mapping is a simple linear equation but the calculation is
+ * more complicated to allow performing it with integer operations.
+ * Another complication is that if a line could map onto many lines in the
+ * destination range then we want to choose the line at the center of those
+ * possibilities.
+ * Example: if the chunk is 2 lines long in A and 10 lines long in B then the
+ * first 5 lines in B will map onto the first line in the A chunk, while the
+ * last 5 lines will all map onto the second line in the A chunk.
+ * Example: if the chunk is 10 lines long in A and 2 lines long in B then line
+ * 0 in B will map onto line 2 in A, and line 1 in B will map onto line 7 in A.
+ */
+static int map_line_number(int line_number,
+ const struct line_number_mapping *mapping)
+{
+ return ((line_number - mapping->source_start) * 2 + 1) *
+ mapping->destination_length /
+ (mapping->source_length * 2) +
+ mapping->destination_start;
+}
+
+/* Get a pointer to the element storing the similarity between a line in A
+ * and a line in B.
+ *
+ * The similarities are stored in a 2-dimensional array. Each "row" in the
+ * array contains the similarities for a line in B. The similarities stored in
+ * a row are the similarities between the line in B and the nearby lines in A.
+ * To keep the length of each row the same, it is padded out with values of -1
+ * where the search range extends beyond the lines in A.
+ * For example, if max_search_distance_a is 2 and the two sides of a diff chunk
+ * look like this:
+ * a | m
+ * b | n
+ * c | o
+ * d | p
+ * e | q
+ * Then the similarity array will contain:
+ * [-1, -1, am, bm, cm,
+ * -1, an, bn, cn, dn,
+ * ao, bo, co, do, eo,
+ * bp, cp, dp, ep, -1,
+ * cq, dq, eq, -1, -1]
+ * Where similarities are denoted either by -1 for invalid, or the
+ * concatenation of the two lines in the diff being compared.
+ *
+ * \param similarities array of similarities between lines in A and B
+ * \param line_a the index of the line in A, in the same frame of reference as
+ * closest_line_a.
+ * \param local_line_b the index of the line in B, relative to the first line
+ * in B that similarities represents.
+ * \param closest_line_a the index of the line in A that is deemed to be
+ * closest to local_line_b. This must be in the same
+ * frame of reference as line_a. This value defines
+ * where similarities is centered for the line in B.
+ * \param max_search_distance_a maximum distance in lines from the closest line
+ * in A for other lines in A for which
+ * similarities may be calculated.
+ */
+static int *get_similarity(int *similarities,
+ int line_a, int local_line_b,
+ int closest_line_a, int max_search_distance_a)
+{
+ assert(abs(line_a - closest_line_a) <=
+ max_search_distance_a);
+ return similarities + line_a - closest_line_a +
+ max_search_distance_a +
+ local_line_b * (max_search_distance_a * 2 + 1);
+}
+
+#define CERTAIN_NOTHING_MATCHES -2
+#define CERTAINTY_NOT_CALCULATED -1
+
+/* Given a line in B, first calculate its similarities with nearby lines in A
+ * if not already calculated, then identify the most similar and second most
+ * similar lines. The "certainty" is calculated based on those two
+ * similarities.
+ *
+ * \param start_a the index of the first line of the chunk in A
+ * \param length_a the length in lines of the chunk in A
+ * \param local_line_b the index of the line in B, relative to the first line
+ * in the chunk.
+ * \param fingerprints_a array of fingerprints for the chunk in A
+ * \param fingerprints_b array of fingerprints for the chunk in B
+ * \param similarities 2-dimensional array of similarities between lines in A
+ * and B. See get_similarity() for more details.
+ * \param certainties array of values indicating how strongly a line in B is
+ * matched with some line in A.
+ * \param second_best_result array of absolute indices in A for the second
+ * closest match of a line in B.
+ * \param result array of absolute indices in A for the closest match of a line
+ * in B.
+ * \param max_search_distance_a maximum distance in lines from the closest line
+ * in A for other lines in A for which
+ * similarities may be calculated.
+ * \param map_line_number_in_b_to_a parameter to map_line_number().
+ */
+static void find_best_line_matches(
+ int start_a,
+ int length_a,
+ int start_b,
+ int local_line_b,
+ struct fingerprint *fingerprints_a,
+ struct fingerprint *fingerprints_b,
+ int *similarities,
+ int *certainties,
+ int *second_best_result,
+ int *result,
+ const int max_search_distance_a,
+ const struct line_number_mapping *map_line_number_in_b_to_a)
+{
+
+ int i, search_start, search_end, closest_local_line_a, *similarity,
+ best_similarity = 0, second_best_similarity = 0,
+ best_similarity_index = 0, second_best_similarity_index = 0;
+
+ /* certainty has already been calculated so no need to redo the work */
+ if (certainties[local_line_b] != CERTAINTY_NOT_CALCULATED)
+ return;
+
+ closest_local_line_a = map_line_number(
+ local_line_b + start_b, map_line_number_in_b_to_a) - start_a;
+
+ search_start = closest_local_line_a - max_search_distance_a;
+ if (search_start < 0)
+ search_start = 0;
+
+ search_end = closest_local_line_a + max_search_distance_a + 1;
+ if (search_end > length_a)
+ search_end = length_a;
+
+ for (i = search_start; i < search_end; ++i) {
+ similarity = get_similarity(similarities,
+ i, local_line_b,
+ closest_local_line_a,
+ max_search_distance_a);
+ if (*similarity == -1) {
+ /* This value will never exceed 10 but assert just in
+ * case
+ */
+ assert(abs(i - closest_local_line_a) < 1000);
+ /* scale the similarity by (1000 - distance from
+ * closest line) to act as a tie break between lines
+ * that otherwise are equally similar.
+ */
+ *similarity = fingerprint_similarity(
+ fingerprints_b + local_line_b,
+ fingerprints_a + i) *
+ (1000 - abs(i - closest_local_line_a));
+ }
+ if (*similarity > best_similarity) {
+ second_best_similarity = best_similarity;
+ second_best_similarity_index = best_similarity_index;
+ best_similarity = *similarity;
+ best_similarity_index = i;
+ } else if (*similarity > second_best_similarity) {
+ second_best_similarity = *similarity;
+ second_best_similarity_index = i;
+ }
+ }
+
+ if (best_similarity == 0) {
+ /* this line definitely doesn't match with anything. Mark it
+ * with this special value so it doesn't get invalidated and
+ * won't be recalculated.
+ */
+ certainties[local_line_b] = CERTAIN_NOTHING_MATCHES;
+ result[local_line_b] = -1;
+ } else {
+ /* Calculate the certainty with which this line matches.
+ * If the line matches well with two lines then that reduces
+ * the certainty. However we still want to prioritise matching
+ * a line that matches very well with two lines over matching a
+ * line that matches poorly with one line, hence doubling
+ * best_similarity.
+ * This means that if we have
+ * line X that matches only one line with a score of 3,
+ * line Y that matches two lines equally with a score of 5,
+ * and line Z that matches only one line with a score or 2,
+ * then the lines in order of certainty are X, Y, Z.
+ */
+ certainties[local_line_b] = best_similarity * 2 -
+ second_best_similarity;
+
+ /* We keep both the best and second best results to allow us to
+ * check at a later stage of the matching process whether the
+ * result needs to be invalidated.
+ */
+ result[local_line_b] = start_a + best_similarity_index;
+ second_best_result[local_line_b] =
+ start_a + second_best_similarity_index;
+ }
+}
+
+/*
+ * This finds the line that we can match with the most confidence, and
+ * uses it as a partition. It then calls itself on the lines on either side of
+ * that partition. In this way we avoid lines appearing out of order, and
+ * retain a sensible line ordering.
+ * \param start_a index of the first line in A with which lines in B may be
+ * compared.
+ * \param start_b index of the first line in B for which matching should be
+ * done.
+ * \param length_a number of lines in A with which lines in B may be compared.
+ * \param length_b number of lines in B for which matching should be done.
+ * \param fingerprints_a mutable array of fingerprints in A. The first element
+ * corresponds to the line at start_a.
+ * \param fingerprints_b array of fingerprints in B. The first element
+ * corresponds to the line at start_b.
+ * \param similarities 2-dimensional array of similarities between lines in A
+ * and B. See get_similarity() for more details.
+ * \param certainties array of values indicating how strongly a line in B is
+ * matched with some line in A.
+ * \param second_best_result array of absolute indices in A for the second
+ * closest match of a line in B.
+ * \param result array of absolute indices in A for the closest match of a line
+ * in B.
+ * \param max_search_distance_a maximum distance in lines from the closest line
+ * in A for other lines in A for which
+ * similarities may be calculated.
+ * \param max_search_distance_b an upper bound on the greatest possible
+ * distance between lines in B such that they will
+ * both be compared with the same line in A
+ * according to max_search_distance_a.
+ * \param map_line_number_in_b_to_a parameter to map_line_number().
+ */
+static void fuzzy_find_matching_lines_recurse(
+ int start_a, int start_b,
+ int length_a, int length_b,
+ struct fingerprint *fingerprints_a,
+ struct fingerprint *fingerprints_b,
+ int *similarities,
+ int *certainties,
+ int *second_best_result,
+ int *result,
+ int max_search_distance_a,
+ int max_search_distance_b,
+ const struct line_number_mapping *map_line_number_in_b_to_a)
+{
+ int i, invalidate_min, invalidate_max, offset_b,
+ second_half_start_a, second_half_start_b,
+ second_half_length_a, second_half_length_b,
+ most_certain_line_a, most_certain_local_line_b = -1,
+ most_certain_line_certainty = -1,
+ closest_local_line_a;
+
+ for (i = 0; i < length_b; ++i) {
+ find_best_line_matches(start_a,
+ length_a,
+ start_b,
+ i,
+ fingerprints_a,
+ fingerprints_b,
+ similarities,
+ certainties,
+ second_best_result,
+ result,
+ max_search_distance_a,
+ map_line_number_in_b_to_a);
+
+ if (certainties[i] > most_certain_line_certainty) {
+ most_certain_line_certainty = certainties[i];
+ most_certain_local_line_b = i;
+ }
+ }
+
+ /* No matches. */
+ if (most_certain_local_line_b == -1)
+ return;
+
+ most_certain_line_a = result[most_certain_local_line_b];
+
+ /*
+ * Subtract the most certain line's fingerprint in B from the matched
+ * fingerprint in A. This means that other lines in B can't also match
+ * the same parts of the line in A.
+ */
+ fingerprint_subtract(fingerprints_a + most_certain_line_a - start_a,
+ fingerprints_b + most_certain_local_line_b);
+
+ /* Invalidate results that may be affected by the choice of most
+ * certain line.
+ */
+ invalidate_min = most_certain_local_line_b - max_search_distance_b;
+ invalidate_max = most_certain_local_line_b + max_search_distance_b + 1;
+ if (invalidate_min < 0)
+ invalidate_min = 0;
+ if (invalidate_max > length_b)
+ invalidate_max = length_b;
+
+ /* As the fingerprint in A has changed, discard previously calculated
+ * similarity values with that fingerprint.
+ */
+ for (i = invalidate_min; i < invalidate_max; ++i) {
+ closest_local_line_a = map_line_number(
+ i + start_b, map_line_number_in_b_to_a) - start_a;
+
+ /* Check that the lines in A and B are close enough that there
+ * is a similarity value for them.
+ */
+ if (abs(most_certain_line_a - start_a - closest_local_line_a) >
+ max_search_distance_a) {
+ continue;
+ }
+
+ *get_similarity(similarities, most_certain_line_a - start_a,
+ i, closest_local_line_a,
+ max_search_distance_a) = -1;
+ }
+
+ /* More invalidating of results that may be affected by the choice of
+ * most certain line.
+ * Discard the matches for lines in B that are currently matched with a
+ * line in A such that their ordering contradicts the ordering imposed
+ * by the choice of most certain line.
+ */
+ for (i = most_certain_local_line_b - 1; i >= invalidate_min; --i) {
+ /* In this loop we discard results for lines in B that are
+ * before most-certain-line-B but are matched with a line in A
+ * that is after most-certain-line-A.
+ */
+ if (certainties[i] >= 0 &&
+ (result[i] >= most_certain_line_a ||
+ second_best_result[i] >= most_certain_line_a)) {
+ certainties[i] = CERTAINTY_NOT_CALCULATED;
+ }
+ }
+ for (i = most_certain_local_line_b + 1; i < invalidate_max; ++i) {
+ /* In this loop we discard results for lines in B that are
+ * after most-certain-line-B but are matched with a line in A
+ * that is before most-certain-line-A.
+ */
+ if (certainties[i] >= 0 &&
+ (result[i] <= most_certain_line_a ||
+ second_best_result[i] <= most_certain_line_a)) {
+ certainties[i] = CERTAINTY_NOT_CALCULATED;
+ }
+ }
+
+ /* Repeat the matching process for lines before the most certain line.
+ */
+ if (most_certain_local_line_b > 0) {
+ fuzzy_find_matching_lines_recurse(
+ start_a, start_b,
+ most_certain_line_a + 1 - start_a,
+ most_certain_local_line_b,
+ fingerprints_a, fingerprints_b, similarities,
+ certainties, second_best_result, result,
+ max_search_distance_a,
+ max_search_distance_b,
+ map_line_number_in_b_to_a);
+ }
+ /* Repeat the matching process for lines after the most certain line.
+ */
+ if (most_certain_local_line_b + 1 < length_b) {
+ second_half_start_a = most_certain_line_a;
+ offset_b = most_certain_local_line_b + 1;
+ second_half_start_b = start_b + offset_b;
+ second_half_length_a =
+ length_a + start_a - second_half_start_a;
+ second_half_length_b =
+ length_b + start_b - second_half_start_b;
+ fuzzy_find_matching_lines_recurse(
+ second_half_start_a, second_half_start_b,
+ second_half_length_a, second_half_length_b,
+ fingerprints_a + second_half_start_a - start_a,
+ fingerprints_b + offset_b,
+ similarities +
+ offset_b * (max_search_distance_a * 2 + 1),
+ certainties + offset_b,
+ second_best_result + offset_b, result + offset_b,
+ max_search_distance_a,
+ max_search_distance_b,
+ map_line_number_in_b_to_a);
+ }
+}
+
+/* Find the lines in the parent line range that most closely match the lines in
+ * the target line range. This is accomplished by matching fingerprints in each
+ * blame_origin, and choosing the best matches that preserve the line ordering.
+ * See struct fingerprint for details of fingerprint matching, and
+ * fuzzy_find_matching_lines_recurse for details of preserving line ordering.
+ *
+ * The performance is believed to be O(n log n) in the typical case and O(n^2)
+ * in a pathological case, where n is the number of lines in the target range.
+ */
+static int *fuzzy_find_matching_lines(struct blame_origin *parent,
+ struct blame_origin *target,
+ int tlno, int parent_slno, int same,
+ int parent_len)
+{
+ /* We use the terminology "A" for the left hand side of the diff AKA
+ * parent, and "B" for the right hand side of the diff AKA target. */
+ int start_a = parent_slno;
+ int length_a = parent_len;
+ int start_b = tlno;
+ int length_b = same - tlno;
+
+ struct line_number_mapping map_line_number_in_b_to_a = {
+ start_a, length_a, start_b, length_b
+ };
+
+ struct fingerprint *fingerprints_a = parent->fingerprints;
+ struct fingerprint *fingerprints_b = target->fingerprints;
+
+ int i, *result, *second_best_result,
+ *certainties, *similarities, similarity_count;
+
+ /*
+ * max_search_distance_a means that given a line in B, compare it to
+ * the line in A that is closest to its position, and the lines in A
+ * that are no greater than max_search_distance_a lines away from the
+ * closest line in A.
+ *
+ * max_search_distance_b is an upper bound on the greatest possible
+ * distance between lines in B such that they will both be compared
+ * with the same line in A according to max_search_distance_a.
+ */
+ int max_search_distance_a = 10, max_search_distance_b;
+
+ if (length_a <= 0)
+ return NULL;
+
+ if (max_search_distance_a >= length_a)
+ max_search_distance_a = length_a ? length_a - 1 : 0;
+
+ max_search_distance_b = ((2 * max_search_distance_a + 1) * length_b
+ - 1) / length_a;
+
+ result = xcalloc(sizeof(int), length_b);
+ second_best_result = xcalloc(sizeof(int), length_b);
+ certainties = xcalloc(sizeof(int), length_b);
+
+ /* See get_similarity() for details of similarities. */
+ similarity_count = length_b * (max_search_distance_a * 2 + 1);
+ similarities = xcalloc(sizeof(int), similarity_count);
+
+ for (i = 0; i < length_b; ++i) {
+ result[i] = -1;
+ second_best_result[i] = -1;
+ certainties[i] = CERTAINTY_NOT_CALCULATED;
+ }
+
+ for (i = 0; i < similarity_count; ++i)
+ similarities[i] = -1;
+
+ fuzzy_find_matching_lines_recurse(start_a, start_b,
+ length_a, length_b,
+ fingerprints_a + start_a,
+ fingerprints_b + start_b,
+ similarities,
+ certainties,
+ second_best_result,
+ result,
+ max_search_distance_a,
+ max_search_distance_b,
+ &map_line_number_in_b_to_a);
+
+ free(similarities);
+ free(certainties);
+ free(second_best_result);
+
+ return result;
+}
+
+static void fill_origin_fingerprints(struct blame_origin *o)
+{
+ int *line_starts;
+
+ if (o->fingerprints)
+ return;
+ o->num_lines = find_line_starts(&line_starts, o->file.ptr,
+ o->file.size);
+ o->fingerprints = xcalloc(sizeof(struct fingerprint), o->num_lines);
+ get_line_fingerprints(o->fingerprints, o->file.ptr, line_starts,
+ 0, o->num_lines);
+ free(line_starts);
+}
+
+static void drop_origin_fingerprints(struct blame_origin *o)
+{
+ if (o->fingerprints) {
+ free_line_fingerprints(o->fingerprints, o->num_lines);
+ o->num_lines = 0;
+ FREE_AND_NULL(o->fingerprints);
+ }
+}
+
/*
* Given an origin, prepare mmfile_t structure to be used by the
* diff machinery
*/
static void fill_origin_blob(struct diff_options *opt,
- struct blame_origin *o, mmfile_t *file, int *num_read_blob)
+ struct blame_origin *o, mmfile_t *file,
+ int *num_read_blob, int fill_fingerprints)
{
if (!o->file.ptr) {
enum object_type type;
@@ -340,11 +1035,14 @@ static void fill_origin_blob(struct diff_options *opt,
}
else
*file = o->file;
+ if (fill_fingerprints)
+ fill_origin_fingerprints(o);
}
static void drop_origin_blob(struct blame_origin *o)
{
FREE_AND_NULL(o->file.ptr);
+ drop_origin_fingerprints(o);
}
/*
@@ -480,7 +1178,9 @@ void blame_coalesce(struct blame_scoreboard *sb)
for (ent = sb->ent; ent && (next = ent->next); ent = next) {
if (ent->suspect == next->suspect &&
- ent->s_lno + ent->num_lines == next->s_lno) {
+ ent->s_lno + ent->num_lines == next->s_lno &&
+ ent->ignored == next->ignored &&
+ ent->unblamable == next->unblamable) {
ent->num_lines += next->num_lines;
ent->next = next->next;
blame_origin_decref(next->suspect);
@@ -532,7 +1232,7 @@ static int fill_blob_sha1_and_mode(struct repository *r,
{
if (!is_null_oid(&origin->blob_oid))
return 0;
- if (get_tree_entry(&origin->commit->object.oid, origin->path, &origin->blob_oid, &origin->mode))
+ if (get_tree_entry(r, &origin->commit->object.oid, origin->path, &origin->blob_oid, &origin->mode))
goto error_out;
if (oid_object_info(r, &origin->blob_oid, NULL) != OBJ_BLOB)
goto error_out;
@@ -730,8 +1430,14 @@ static void split_overlap(struct blame_entry *split,
struct blame_origin *parent)
{
int chunk_end_lno;
+ int i;
memset(split, 0, sizeof(struct blame_entry [3]));
+ for (i = 0; i < 3; i++) {
+ split[i].ignored = e->ignored;
+ split[i].unblamable = e->unblamable;
+ }
+
if (e->s_lno < tlno) {
/* there is a pre-chunk part not blamed on parent */
split[0].suspect = blame_origin_incref(e->suspect);
@@ -840,6 +1546,164 @@ static struct blame_entry *reverse_blame(struct blame_entry *head,
}
/*
+ * Splits a blame entry into two entries at 'len' lines. The original 'e'
+ * consists of len lines, i.e. [e->lno, e->lno + len), and the second part,
+ * which is returned, consists of the remainder: [e->lno + len, e->lno +
+ * e->num_lines). The caller needs to sort out the reference counting for the
+ * new entry's suspect.
+ */
+static struct blame_entry *split_blame_at(struct blame_entry *e, int len,
+ struct blame_origin *new_suspect)
+{
+ struct blame_entry *n = xcalloc(1, sizeof(struct blame_entry));
+
+ n->suspect = new_suspect;
+ n->ignored = e->ignored;
+ n->unblamable = e->unblamable;
+ n->lno = e->lno + len;
+ n->s_lno = e->s_lno + len;
+ n->num_lines = e->num_lines - len;
+ e->num_lines = len;
+ e->score = 0;
+ return n;
+}
+
+struct blame_line_tracker {
+ int is_parent;
+ int s_lno;
+};
+
+static int are_lines_adjacent(struct blame_line_tracker *first,
+ struct blame_line_tracker *second)
+{
+ return first->is_parent == second->is_parent &&
+ first->s_lno + 1 == second->s_lno;
+}
+
+static int scan_parent_range(struct fingerprint *p_fps,
+ struct fingerprint *t_fps, int t_idx,
+ int from, int nr_lines)
+{
+ int sim, p_idx;
+ #define FINGERPRINT_FILE_THRESHOLD 10
+ int best_sim_val = FINGERPRINT_FILE_THRESHOLD;
+ int best_sim_idx = -1;
+
+ for (p_idx = from; p_idx < from + nr_lines; p_idx++) {
+ sim = fingerprint_similarity(&t_fps[t_idx], &p_fps[p_idx]);
+ if (sim < best_sim_val)
+ continue;
+ /* Break ties with the closest-to-target line number */
+ if (sim == best_sim_val && best_sim_idx != -1 &&
+ abs(best_sim_idx - t_idx) < abs(p_idx - t_idx))
+ continue;
+ best_sim_val = sim;
+ best_sim_idx = p_idx;
+ }
+ return best_sim_idx;
+}
+
+/*
+ * The first pass checks the blame entry (from the target) against the parent's
+ * diff chunk. If that fails for a line, the second pass tries to match that
+ * line to any part of parent file. That catches cases where a change was
+ * broken into two chunks by 'context.'
+ */
+static void guess_line_blames(struct blame_origin *parent,
+ struct blame_origin *target,
+ int tlno, int offset, int same, int parent_len,
+ struct blame_line_tracker *line_blames)
+{
+ int i, best_idx, target_idx;
+ int parent_slno = tlno + offset;
+ int *fuzzy_matches;
+
+ fuzzy_matches = fuzzy_find_matching_lines(parent, target,
+ tlno, parent_slno, same,
+ parent_len);
+ for (i = 0; i < same - tlno; i++) {
+ target_idx = tlno + i;
+ if (fuzzy_matches && fuzzy_matches[i] >= 0) {
+ best_idx = fuzzy_matches[i];
+ } else {
+ best_idx = scan_parent_range(parent->fingerprints,
+ target->fingerprints,
+ target_idx, 0,
+ parent->num_lines);
+ }
+ if (best_idx >= 0) {
+ line_blames[i].is_parent = 1;
+ line_blames[i].s_lno = best_idx;
+ } else {
+ line_blames[i].is_parent = 0;
+ line_blames[i].s_lno = target_idx;
+ }
+ }
+ free(fuzzy_matches);
+}
+
+/*
+ * This decides which parts of a blame entry go to the parent (added to the
+ * ignoredp list) and which stay with the target (added to the diffp list). The
+ * actual decision was made in a separate heuristic function, and those answers
+ * for the lines in 'e' are in line_blames. This consumes e, essentially
+ * putting it on a list.
+ *
+ * Note that the blame entries on the ignoredp list are not necessarily sorted
+ * with respect to the parent's line numbers yet.
+ */
+static void ignore_blame_entry(struct blame_entry *e,
+ struct blame_origin *parent,
+ struct blame_entry **diffp,
+ struct blame_entry **ignoredp,
+ struct blame_line_tracker *line_blames)
+{
+ int entry_len, nr_lines, i;
+
+ /*
+ * We carve new entries off the front of e. Each entry comes from a
+ * contiguous chunk of lines: adjacent lines from the same origin
+ * (either the parent or the target).
+ */
+ entry_len = 1;
+ nr_lines = e->num_lines; /* e changes in the loop */
+ for (i = 0; i < nr_lines; i++) {
+ struct blame_entry *next = NULL;
+
+ /*
+ * We are often adjacent to the next line - only split the blame
+ * entry when we have to.
+ */
+ if (i + 1 < nr_lines) {
+ if (are_lines_adjacent(&line_blames[i],
+ &line_blames[i + 1])) {
+ entry_len++;
+ continue;
+ }
+ next = split_blame_at(e, entry_len,
+ blame_origin_incref(e->suspect));
+ }
+ if (line_blames[i].is_parent) {
+ e->ignored = 1;
+ blame_origin_decref(e->suspect);
+ e->suspect = blame_origin_incref(parent);
+ e->s_lno = line_blames[i - entry_len + 1].s_lno;
+ e->next = *ignoredp;
+ *ignoredp = e;
+ } else {
+ e->unblamable = 1;
+ /* e->s_lno is already in the target's address space. */
+ e->next = *diffp;
+ *diffp = e;
+ }
+ assert(e->num_lines == entry_len);
+ e = next;
+ entry_len = 1;
+ }
+ assert(!e);
+}
+
+/*
* Process one hunk from the patch between the current suspect for
* blame_entry e and its parent. This first blames any unfinished
* entries before the chunk (which is where target and parent start
@@ -848,13 +1712,20 @@ static struct blame_entry *reverse_blame(struct blame_entry *head,
* -C options may lead to overlapping/duplicate source line number
* ranges, all we can rely on from sorting/merging is the order of the
* first suspect line number.
+ *
+ * tlno: line number in the target where this chunk begins
+ * same: line number in the target where this chunk ends
+ * offset: add to tlno to get the chunk starting point in the parent
+ * parent_len: number of lines in the parent chunk
*/
static void blame_chunk(struct blame_entry ***dstq, struct blame_entry ***srcq,
- int tlno, int offset, int same,
- struct blame_origin *parent)
+ int tlno, int offset, int same, int parent_len,
+ struct blame_origin *parent,
+ struct blame_origin *target, int ignore_diffs)
{
struct blame_entry *e = **srcq;
- struct blame_entry *samep = NULL, *diffp = NULL;
+ struct blame_entry *samep = NULL, *diffp = NULL, *ignoredp = NULL;
+ struct blame_line_tracker *line_blames = NULL;
while (e && e->s_lno < tlno) {
struct blame_entry *next = e->next;
@@ -865,14 +1736,9 @@ static void blame_chunk(struct blame_entry ***dstq, struct blame_entry ***srcq,
*/
if (e->s_lno + e->num_lines > tlno) {
/* Move second half to a new record */
- int len = tlno - e->s_lno;
- struct blame_entry *n = xcalloc(1, sizeof (struct blame_entry));
- n->suspect = e->suspect;
- n->lno = e->lno + len;
- n->s_lno = e->s_lno + len;
- n->num_lines = e->num_lines - len;
- e->num_lines = len;
- e->score = 0;
+ struct blame_entry *n;
+
+ n = split_blame_at(e, tlno - e->s_lno, e->suspect);
/* Push new record to diffp */
n->next = diffp;
diffp = n;
@@ -908,6 +1774,14 @@ static void blame_chunk(struct blame_entry ***dstq, struct blame_entry ***srcq,
*/
samep = NULL;
diffp = NULL;
+
+ if (ignore_diffs && same - tlno > 0) {
+ line_blames = xcalloc(sizeof(struct blame_line_tracker),
+ same - tlno);
+ guess_line_blames(parent, target, tlno, offset, same,
+ parent_len, line_blames);
+ }
+
while (e && e->s_lno < same) {
struct blame_entry *next = e->next;
@@ -919,22 +1793,37 @@ static void blame_chunk(struct blame_entry ***dstq, struct blame_entry ***srcq,
* Move second half to a new record to be
* processed by later chunks
*/
- int len = same - e->s_lno;
- struct blame_entry *n = xcalloc(1, sizeof (struct blame_entry));
- n->suspect = blame_origin_incref(e->suspect);
- n->lno = e->lno + len;
- n->s_lno = e->s_lno + len;
- n->num_lines = e->num_lines - len;
- e->num_lines = len;
- e->score = 0;
+ struct blame_entry *n;
+
+ n = split_blame_at(e, same - e->s_lno,
+ blame_origin_incref(e->suspect));
/* Push new record to samep */
n->next = samep;
samep = n;
}
- e->next = diffp;
- diffp = e;
+ if (ignore_diffs) {
+ ignore_blame_entry(e, parent, &diffp, &ignoredp,
+ line_blames + e->s_lno - tlno);
+ } else {
+ e->next = diffp;
+ diffp = e;
+ }
e = next;
}
+ free(line_blames);
+ if (ignoredp) {
+ /*
+ * Note ignoredp is not sorted yet, and thus neither is dstq.
+ * That list must be sorted before we queue_blames(). We defer
+ * sorting until after all diff hunks are processed, so that
+ * guess_line_blames() can pick *any* line in the parent. The
+ * slight drawback is that we end up sorting all blame entries
+ * passed to the parent, including those that are unrelated to
+ * changes made by the ignored commit.
+ */
+ **dstq = reverse_blame(ignoredp, **dstq);
+ *dstq = &ignoredp->next;
+ }
**srcq = reverse_blame(diffp, reverse_blame(samep, e));
/* Move across elements that are in the unblamable portion */
if (diffp)
@@ -943,7 +1832,9 @@ static void blame_chunk(struct blame_entry ***dstq, struct blame_entry ***srcq,
struct blame_chunk_cb_data {
struct blame_origin *parent;
+ struct blame_origin *target;
long offset;
+ int ignore_diffs;
struct blame_entry **dstq;
struct blame_entry **srcq;
};
@@ -956,7 +1847,8 @@ static int blame_chunk_cb(long start_a, long count_a,
if (start_a - start_b != d->offset)
die("internal error in blame::blame_chunk_cb");
blame_chunk(&d->dstq, &d->srcq, start_b, start_a - start_b,
- start_b + count_b, d->parent);
+ start_b + count_b, count_a, d->parent, d->target,
+ d->ignore_diffs);
d->offset = start_a + count_a - (start_b + count_b);
return 0;
}
@@ -968,7 +1860,7 @@ static int blame_chunk_cb(long start_a, long count_a,
*/
static void pass_blame_to_parent(struct blame_scoreboard *sb,
struct blame_origin *target,
- struct blame_origin *parent)
+ struct blame_origin *parent, int ignore_diffs)
{
mmfile_t file_p, file_o;
struct blame_chunk_cb_data d;
@@ -978,11 +1870,15 @@ static void pass_blame_to_parent(struct blame_scoreboard *sb,
return; /* nothing remains for this target */
d.parent = parent;
+ d.target = target;
d.offset = 0;
+ d.ignore_diffs = ignore_diffs;
d.dstq = &newdest; d.srcq = &target->suspects;
- fill_origin_blob(&sb->revs->diffopt, parent, &file_p, &sb->num_read_blob);
- fill_origin_blob(&sb->revs->diffopt, target, &file_o, &sb->num_read_blob);
+ fill_origin_blob(&sb->revs->diffopt, parent, &file_p,
+ &sb->num_read_blob, ignore_diffs);
+ fill_origin_blob(&sb->revs->diffopt, target, &file_o,
+ &sb->num_read_blob, ignore_diffs);
sb->num_get_patch++;
if (diff_hunks(&file_p, &file_o, blame_chunk_cb, &d, sb->xdl_opts))
@@ -990,8 +1886,13 @@ static void pass_blame_to_parent(struct blame_scoreboard *sb,
oid_to_hex(&parent->commit->object.oid),
oid_to_hex(&target->commit->object.oid));
/* The rest are the same as the parent */
- blame_chunk(&d.dstq, &d.srcq, INT_MAX, d.offset, INT_MAX, parent);
+ blame_chunk(&d.dstq, &d.srcq, INT_MAX, d.offset, INT_MAX, 0,
+ parent, target, 0);
*d.dstq = NULL;
+ if (ignore_diffs)
+ newdest = llist_mergesort(newdest, get_next_blame,
+ set_next_blame,
+ compare_blame_suspect);
queue_blames(sb, parent, newdest);
return;
@@ -1188,7 +2089,8 @@ static void find_move_in_parent(struct blame_scoreboard *sb,
if (!unblamed)
return; /* nothing remains for this target */
- fill_origin_blob(&sb->revs->diffopt, parent, &file_p, &sb->num_read_blob);
+ fill_origin_blob(&sb->revs->diffopt, parent, &file_p,
+ &sb->num_read_blob, 0);
if (!file_p.ptr)
return;
@@ -1317,7 +2219,8 @@ static void find_copy_in_parent(struct blame_scoreboard *sb,
norigin = get_origin(parent, p->one->path);
oidcpy(&norigin->blob_oid, &p->one->oid);
norigin->mode = p->one->mode;
- fill_origin_blob(&sb->revs->diffopt, norigin, &file_p, &sb->num_read_blob);
+ fill_origin_blob(&sb->revs->diffopt, norigin, &file_p,
+ &sb->num_read_blob, 0);
if (!file_p.ptr)
continue;
@@ -1495,12 +2398,35 @@ static void pass_blame(struct blame_scoreboard *sb, struct blame_origin *origin,
blame_origin_incref(porigin);
origin->previous = porigin;
}
- pass_blame_to_parent(sb, origin, porigin);
+ pass_blame_to_parent(sb, origin, porigin, 0);
if (!origin->suspects)
goto finish;
}
/*
+ * Pass remaining suspects for ignored commits to their parents.
+ */
+ if (oidset_contains(&sb->ignore_list, &commit->object.oid)) {
+ for (i = 0, sg = first_scapegoat(revs, commit, sb->reverse);
+ i < num_sg && sg;
+ sg = sg->next, i++) {
+ struct blame_origin *porigin = sg_origin[i];
+
+ if (!porigin)
+ continue;
+ pass_blame_to_parent(sb, origin, porigin, 1);
+ /*
+ * Preemptively drop porigin so we can refresh the
+ * fingerprints if we use the parent again, which can
+ * occur if you ignore back-to-back commits.
+ */
+ drop_origin_blob(porigin);
+ if (!origin->suspects)
+ goto finish;
+ }
+ }
+
+ /*
* Optionally find moves in parents' files.
*/
if (opt & PICKAXE_BLAME_MOVE) {
@@ -1640,37 +2566,14 @@ void assign_blame(struct blame_scoreboard *sb, int opt)
}
}
-static const char *get_next_line(const char *start, const char *end)
-{
- const char *nl = memchr(start, '\n', end - start);
- return nl ? nl + 1 : end;
-}
-
/*
* To allow quick access to the contents of nth line in the
* final image, prepare an index in the scoreboard.
*/
static int prepare_lines(struct blame_scoreboard *sb)
{
- const char *buf = sb->final_buf;
- unsigned long len = sb->final_buf_size;
- const char *end = buf + len;
- const char *p;
- int *lineno;
- int num = 0;
-
- for (p = buf; p < end; p = get_next_line(p, end))
- num++;
-
- ALLOC_ARRAY(sb->lineno, num + 1);
- lineno = sb->lineno;
-
- for (p = buf; p < end; p = get_next_line(p, end))
- *lineno++ = p - buf;
-
- *lineno = len;
-
- sb->num_lines = num;
+ sb->num_lines = find_line_starts(&sb->lineno, sb->final_buf,
+ sb->final_buf_size);
return sb->num_lines;
}
diff --git a/blame.h b/blame.h
index d62f80f..4a9e127 100644
--- a/blame.h
+++ b/blame.h
@@ -51,6 +51,8 @@ struct blame_origin {
*/
struct blame_entry *suspects;
mmfile_t file;
+ int num_lines;
+ void *fingerprints;
struct object_id blob_oid;
unsigned short mode;
/* guilty gets set when shipping any suspects to the final
@@ -92,6 +94,8 @@ struct blame_entry {
* scanning the lines over and over.
*/
unsigned score;
+ int ignored;
+ int unblamable;
};
/*
@@ -117,6 +121,8 @@ struct blame_scoreboard {
/* linked list of blames */
struct blame_entry *ent;
+ struct oidset ignore_list;
+
/* look-up a line in the final buffer */
int num_lines;
int *lineno;
diff --git a/blob.c b/blob.c
index 342bdbb..36f9abd 100644
--- a/blob.c
+++ b/blob.c
@@ -7,10 +7,9 @@ const char *blob_type = "blob";
struct blob *lookup_blob(struct repository *r, const struct object_id *oid)
{
- struct object *obj = lookup_object(r, oid->hash);
+ struct object *obj = lookup_object(r, oid);
if (!obj)
- return create_object(r, oid->hash,
- alloc_blob_node(r));
+ return create_object(r, oid, alloc_blob_node(r));
return object_as_type(r, obj, OBJ_BLOB, 0);
}
diff --git a/branch.c b/branch.c
index a594cc2..5794947 100644
--- a/branch.c
+++ b/branch.c
@@ -338,14 +338,19 @@ void create_branch(struct repository *r,
free(real_ref);
}
-void remove_branch_state(struct repository *r)
+void remove_merge_branch_state(struct repository *r)
{
- sequencer_post_commit_cleanup(r);
unlink(git_path_merge_head(r));
unlink(git_path_merge_rr(r));
unlink(git_path_merge_msg(r));
unlink(git_path_merge_mode(r));
+}
+
+void remove_branch_state(struct repository *r, int verbose)
+{
+ sequencer_post_commit_cleanup(r, verbose);
unlink(git_path_squash_msg(r));
+ remove_merge_branch_state(r);
}
void die_if_checked_out(const char *branch, int ignore_current_worktree)
diff --git a/branch.h b/branch.h
index 6f38db1..df0be61 100644
--- a/branch.h
+++ b/branch.h
@@ -61,10 +61,16 @@ int validate_branchname(const char *name, struct strbuf *ref);
int validate_new_branchname(const char *name, struct strbuf *ref, int force);
/*
+ * Remove information about the merge state on the current
+ * branch. (E.g., MERGE_HEAD)
+ */
+void remove_merge_branch_state(struct repository *r);
+
+/*
* Remove information about the state of working on the current
* branch. (E.g., MERGE_HEAD)
*/
-void remove_branch_state(struct repository *r);
+void remove_branch_state(struct repository *r, int verbose);
/*
* Configure local branch "local" as downstream to branch "remote"
diff --git a/builtin.h b/builtin.h
index ec7e095..5cf5df6 100644
--- a/builtin.h
+++ b/builtin.h
@@ -160,6 +160,7 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix);
int cmd_diff(int argc, const char **argv, const char *prefix);
int cmd_diff_tree(int argc, const char **argv, const char *prefix);
int cmd_difftool(int argc, const char **argv, const char *prefix);
+int cmd_env__helper(int argc, const char **argv, const char *prefix);
int cmd_fast_export(int argc, const char **argv, const char *prefix);
int cmd_fetch(int argc, const char **argv, const char *prefix);
int cmd_fetch_pack(int argc, const char **argv, const char *prefix);
@@ -214,6 +215,7 @@ int cmd_remote_fd(int argc, const char **argv, const char *prefix);
int cmd_repack(int argc, const char **argv, const char *prefix);
int cmd_rerere(int argc, const char **argv, const char *prefix);
int cmd_reset(int argc, const char **argv, const char *prefix);
+int cmd_restore(int argc, const char **argv, const char *prefix);
int cmd_rev_list(int argc, const char **argv, const char *prefix);
int cmd_rev_parse(int argc, const char **argv, const char *prefix);
int cmd_revert(int argc, const char **argv, const char *prefix);
@@ -227,6 +229,7 @@ int cmd_status(int argc, const char **argv, const char *prefix);
int cmd_stash(int argc, const char **argv, const char *prefix);
int cmd_stripspace(int argc, const char **argv, const char *prefix);
int cmd_submodule__helper(int argc, const char **argv, const char *prefix);
+int cmd_switch(int argc, const char **argv, const char *prefix);
int cmd_symbolic_ref(int argc, const char **argv, const char *prefix);
int cmd_tag(int argc, const char **argv, const char *prefix);
int cmd_tar_tree(int argc, const char **argv, const char *prefix);
diff --git a/builtin/am.c b/builtin/am.c
index 912d982..1aea657 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1339,9 +1339,10 @@ static void write_index_patch(const struct am_state *state)
struct rev_info rev_info;
FILE *fp;
- if (!get_oid_tree("HEAD", &head))
- tree = lookup_tree(the_repository, &head);
- else
+ if (!get_oid("HEAD", &head)) {
+ struct commit *commit = lookup_commit_or_die(&head, "HEAD");
+ tree = get_commit_tree(commit);
+ } else
tree = lookup_tree(the_repository,
the_repository->hash_algo->empty_tree);
@@ -1643,11 +1644,8 @@ static int do_interactive(struct am_state *state)
{
assert(state->msg);
- if (!isatty(0))
- die(_("cannot be interactive without stdin connected to a terminal."));
-
for (;;) {
- const char *reply;
+ char reply[64];
puts(_("Commit Body is:"));
puts("--------------------------");
@@ -1659,11 +1657,11 @@ static int do_interactive(struct am_state *state)
* in your translation. The program will only accept English
* input at this point.
*/
- reply = git_prompt(_("Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all: "), PROMPT_ECHO);
+ printf(_("Apply? [y]es/[n]o/[e]dit/[v]iew patch/[a]ccept all: "));
+ if (!fgets(reply, sizeof(reply), stdin))
+ die("unable to read from stdin; aborting");
- if (!reply) {
- continue;
- } else if (*reply == 'y' || *reply == 'Y') {
+ if (*reply == 'y' || *reply == 'Y') {
return 0;
} else if (*reply == 'a' || *reply == 'A') {
state->interactive = 0;
@@ -1803,7 +1801,7 @@ next:
*/
if (!state->rebasing) {
am_destroy(state);
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
}
}
@@ -1958,7 +1956,7 @@ static int clean_index(const struct object_id *head, const struct object_id *rem
if (merge_tree(remote_tree))
return -1;
- remove_branch_state(the_repository);
+ remove_branch_state(the_repository, 0);
return 0;
}
@@ -2334,6 +2332,9 @@ int cmd_am(int argc, const char **argv, const char *prefix)
argv_array_push(&paths, mkpath("%s/%s", prefix, argv[i]));
}
+ if (state.interactive && !paths.argc)
+ die(_("interactive mode requires patches on the command line"));
+
am_setup(&state, patch_format, paths.argv, keep_cr);
argv_array_clear(&paths);
diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
index e7325fe..1fbe156 100644
--- a/builtin/bisect--helper.c
+++ b/builtin/bisect--helper.c
@@ -570,7 +570,10 @@ static int bisect_start(struct bisect_terms *terms, int no_checkout,
write_file(git_path_bisect_start(), "%s\n", start_head.buf);
if (no_checkout) {
- get_oid(start_head.buf, &oid);
+ if (get_oid(start_head.buf, &oid) < 0) {
+ retval = error(_("invalid ref: '%s'"), start_head.buf);
+ goto finish;
+ }
if (update_ref(NULL, "BISECT_HEAD", &oid, NULL, 0,
UPDATE_REFS_MSG_ON_ERR)) {
retval = -1;
diff --git a/builtin/blame.c b/builtin/blame.c
index 21cde57..b6534d4 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -53,14 +53,17 @@ static int no_whole_file_rename;
static int show_progress;
static char repeated_meta_color[COLOR_MAXLEN];
static int coloring_mode;
+static struct string_list ignore_revs_file_list = STRING_LIST_INIT_NODUP;
+static int mark_unblamable_lines;
+static int mark_ignored_lines;
static struct date_mode blame_date_mode = { DATE_ISO8601 };
static size_t blame_date_width;
static struct string_list mailmap = STRING_LIST_INIT_NODUP;
-#ifndef DEBUG
-#define DEBUG 0
+#ifndef DEBUG_BLAME
+#define DEBUG_BLAME 0
#endif
static unsigned blame_move_score;
@@ -480,6 +483,14 @@ static void emit_other(struct blame_scoreboard *sb, struct blame_entry *ent, int
}
}
+ if (mark_unblamable_lines && ent->unblamable) {
+ length--;
+ putchar('*');
+ }
+ if (mark_ignored_lines && ent->ignored) {
+ length--;
+ putchar('?');
+ }
printf("%.*s", length, hex);
if (opt & OUTPUT_ANNOTATE_COMPAT) {
const char *name;
@@ -696,6 +707,24 @@ static int git_blame_config(const char *var, const char *value, void *cb)
parse_date_format(value, &blame_date_mode);
return 0;
}
+ if (!strcmp(var, "blame.ignorerevsfile")) {
+ const char *str;
+ int ret;
+
+ ret = git_config_pathname(&str, var, value);
+ if (ret)
+ return ret;
+ string_list_insert(&ignore_revs_file_list, str);
+ return 0;
+ }
+ if (!strcmp(var, "blame.markunblamablelines")) {
+ mark_unblamable_lines = git_config_bool(var, value);
+ return 0;
+ }
+ if (!strcmp(var, "blame.markignoredlines")) {
+ mark_ignored_lines = git_config_bool(var, value);
+ return 0;
+ }
if (!strcmp(var, "color.blame.repeatedlines")) {
if (color_parse_mem(value, strlen(value), repeated_meta_color))
warning(_("invalid color '%s' in color.blame.repeatedLines"),
@@ -775,6 +804,27 @@ static int is_a_rev(const char *name)
return OBJ_NONE < oid_object_info(the_repository, &oid, NULL);
}
+static void build_ignorelist(struct blame_scoreboard *sb,
+ struct string_list *ignore_revs_file_list,
+ struct string_list *ignore_rev_list)
+{
+ struct string_list_item *i;
+ struct object_id oid;
+
+ oidset_init(&sb->ignore_list, 0);
+ for_each_string_list_item(i, ignore_revs_file_list) {
+ if (!strcmp(i->string, ""))
+ oidset_clear(&sb->ignore_list);
+ else
+ oidset_parse_file(&sb->ignore_list, i->string);
+ }
+ for_each_string_list_item(i, ignore_rev_list) {
+ if (get_oid_committish(i->string, &oid))
+ die(_("cannot find revision %s to ignore"), i->string);
+ oidset_insert(&sb->ignore_list, &oid);
+ }
+}
+
int cmd_blame(int argc, const char **argv, const char *prefix)
{
struct rev_info revs;
@@ -786,6 +836,7 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
struct progress_info pi = { NULL, 0 };
struct string_list range_list = STRING_LIST_INIT_NODUP;
+ struct string_list ignore_rev_list = STRING_LIST_INIT_NODUP;
int output_option = 0, opt = 0;
int show_stats = 0;
const char *revs_file = NULL;
@@ -807,6 +858,8 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
OPT_BIT('s', NULL, &output_option, N_("Suppress author name and timestamp (Default: off)"), OUTPUT_NO_AUTHOR),
OPT_BIT('e', "show-email", &output_option, N_("Show author email instead of name (Default: off)"), OUTPUT_SHOW_EMAIL),
OPT_BIT('w', NULL, &xdl_opts, N_("Ignore whitespace differences"), XDF_IGNORE_WHITESPACE),
+ OPT_STRING_LIST(0, "ignore-rev", &ignore_rev_list, N_("rev"), N_("Ignore <rev> when blaming")),
+ OPT_STRING_LIST(0, "ignore-revs-file", &ignore_revs_file_list, N_("file"), N_("Ignore revisions from <file>")),
OPT_BIT(0, "color-lines", &output_option, N_("color redundant metadata from previous line differently"), OUTPUT_COLOR_LINE),
OPT_BIT(0, "color-by-age", &output_option, N_("color lines by age"), OUTPUT_SHOW_AGE_WITH_COLOR),
@@ -1012,6 +1065,9 @@ parse_done:
sb.contents_from = contents_from;
sb.reverse = reverse;
sb.repo = the_repository;
+ build_ignorelist(&sb, &ignore_revs_file_list, &ignore_rev_list);
+ string_list_clear(&ignore_revs_file_list, 0);
+ string_list_clear(&ignore_rev_list, 0);
setup_scoreboard(&sb, path, &o);
lno = sb.num_lines;
@@ -1062,7 +1118,7 @@ parse_done:
if (blame_copy_score)
sb.copy_score = blame_copy_score;
- sb.debug = DEBUG;
+ sb.debug = DEBUG_BLAME;
sb.on_sanity_fail = &sanity_check_on_fail;
sb.show_root = show_root;
diff --git a/builtin/branch.c b/builtin/branch.c
index d4359b3..2ef2146 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -47,6 +47,7 @@ static char branch_colors[][COLOR_MAXLEN] = {
GIT_COLOR_NORMAL, /* LOCAL */
GIT_COLOR_GREEN, /* CURRENT */
GIT_COLOR_BLUE, /* UPSTREAM */
+ GIT_COLOR_CYAN, /* WORKTREE */
};
enum color_branch {
BRANCH_COLOR_RESET = 0,
@@ -54,7 +55,8 @@ enum color_branch {
BRANCH_COLOR_REMOTE = 2,
BRANCH_COLOR_LOCAL = 3,
BRANCH_COLOR_CURRENT = 4,
- BRANCH_COLOR_UPSTREAM = 5
+ BRANCH_COLOR_UPSTREAM = 5,
+ BRANCH_COLOR_WORKTREE = 6
};
static const char *color_branch_slots[] = {
@@ -64,6 +66,7 @@ static const char *color_branch_slots[] = {
[BRANCH_COLOR_LOCAL] = "local",
[BRANCH_COLOR_CURRENT] = "current",
[BRANCH_COLOR_UPSTREAM] = "upstream",
+ [BRANCH_COLOR_WORKTREE] = "worktree",
};
static struct string_list output = STRING_LIST_INIT_DUP;
@@ -342,9 +345,10 @@ static char *build_format(struct ref_filter *filter, int maxwidth, const char *r
struct strbuf local = STRBUF_INIT;
struct strbuf remote = STRBUF_INIT;
- strbuf_addf(&local, "%%(if)%%(HEAD)%%(then)* %s%%(else) %s%%(end)",
- branch_get_color(BRANCH_COLOR_CURRENT),
- branch_get_color(BRANCH_COLOR_LOCAL));
+ strbuf_addf(&local, "%%(if)%%(HEAD)%%(then)* %s%%(else)%%(if)%%(worktreepath)%%(then)+ %s%%(else) %s%%(end)%%(end)",
+ branch_get_color(BRANCH_COLOR_CURRENT),
+ branch_get_color(BRANCH_COLOR_WORKTREE),
+ branch_get_color(BRANCH_COLOR_LOCAL));
strbuf_addf(&remote, " %s",
branch_get_color(BRANCH_COLOR_REMOTE));
@@ -363,9 +367,13 @@ static char *build_format(struct ref_filter *filter, int maxwidth, const char *r
strbuf_addf(&local, " %s ", obname.buf);
if (filter->verbose > 1)
+ {
+ strbuf_addf(&local, "%%(if:notequals=*)%%(HEAD)%%(then)%%(if)%%(worktreepath)%%(then)(%s%%(worktreepath)%s) %%(end)%%(end)",
+ branch_get_color(BRANCH_COLOR_WORKTREE), branch_get_color(BRANCH_COLOR_RESET));
strbuf_addf(&local, "%%(if)%%(upstream)%%(then)[%s%%(upstream:short)%s%%(if)%%(upstream:track)"
"%%(then): %%(upstream:track,nobracket)%%(end)] %%(end)%%(contents:subject)",
branch_get_color(BRANCH_COLOR_UPSTREAM), branch_get_color(BRANCH_COLOR_RESET));
+ }
else
strbuf_addf(&local, "%%(if)%%(upstream:track)%%(then)%%(upstream:track) %%(end)%%(contents:subject)");
@@ -830,7 +838,8 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
strbuf_release(&buf);
} else if (argc > 0 && argc <= 2) {
if (filter.kind != FILTER_REFS_BRANCHES)
- die(_("-a and -r options to 'git branch' do not make sense with a branch name"));
+ die(_("The -a, and -r, options to 'git branch' do not take a branch name.\n"
+ "Did you mean to use: -a|-r --list <pattern>?"));
if (track == BRANCH_TRACK_OVERRIDE)
die(_("the '--set-upstream' option is no longer supported. Please use '--track' or '--set-upstream-to' instead."));
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 0f09238..995d47c 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -172,7 +172,8 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
* fall-back to the usual case.
*/
}
- buf = read_object_with_reference(&oid, exp_type, &size, NULL);
+ buf = read_object_with_reference(the_repository,
+ &oid, exp_type, &size, NULL);
break;
default:
diff --git a/builtin/checkout.c b/builtin/checkout.c
index ffa776c..91f8509 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -1,32 +1,31 @@
#define USE_THE_INDEX_COMPATIBILITY_MACROS
#include "builtin.h"
-#include "config.h"
+#include "advice.h"
+#include "blob.h"
+#include "branch.h"
+#include "cache-tree.h"
#include "checkout.h"
+#include "commit.h"
+#include "config.h"
+#include "diff.h"
+#include "dir.h"
+#include "ll-merge.h"
#include "lockfile.h"
+#include "merge-recursive.h"
+#include "object-store.h"
#include "parse-options.h"
#include "refs.h"
-#include "object-store.h"
-#include "commit.h"
+#include "remote.h"
+#include "resolve-undo.h"
+#include "revision.h"
+#include "run-command.h"
+#include "submodule.h"
+#include "submodule-config.h"
#include "tree.h"
#include "tree-walk.h"
-#include "cache-tree.h"
#include "unpack-trees.h"
-#include "dir.h"
-#include "run-command.h"
-#include "merge-recursive.h"
-#include "branch.h"
-#include "diff.h"
-#include "revision.h"
-#include "remote.h"
-#include "blob.h"
+#include "wt-status.h"
#include "xdiff-interface.h"
-#include "ll-merge.h"
-#include "resolve-undo.h"
-#include "submodule-config.h"
-#include "submodule.h"
-#include "advice.h"
-
-static int checkout_optimize_new_branch;
static const char * const checkout_usage[] = {
N_("git checkout [<options>] <branch>"),
@@ -34,12 +33,23 @@ static const char * const checkout_usage[] = {
NULL,
};
+static const char * const switch_branch_usage[] = {
+ N_("git switch [<options>] [<branch>]"),
+ NULL,
+};
+
+static const char * const restore_usage[] = {
+ N_("git restore [<options>] [--source=<branch>] <file>..."),
+ NULL,
+};
+
struct checkout_opts {
int patch_mode;
int quiet;
int merge;
int force;
int force_detach;
+ int implicit_detach;
int writeout_stage;
int overwrite_ignore;
int ignore_skipworktree;
@@ -47,10 +57,19 @@ struct checkout_opts {
int show_progress;
int count_checkout_paths;
int overlay_mode;
- /*
- * If new checkout options are added, skip_merge_working_tree
- * should be updated accordingly.
- */
+ int dwim_new_local_branch;
+ int discard_changes;
+ int accept_ref;
+ int accept_pathspec;
+ int switch_branch_doing_nothing_is_ok;
+ int only_merge_on_switching_branches;
+ int can_switch_when_in_progress;
+ int orphan_from_empty_tree;
+ int empty_pathspec_ok;
+ int checkout_index;
+ int checkout_worktree;
+ const char *ignore_unmerged_opt;
+ int ignore_unmerged;
const char *new_branch;
const char *new_branch_force;
@@ -58,10 +77,12 @@ struct checkout_opts {
int new_branch_log;
enum branch_track track;
struct diff_options diff_options;
+ char *conflict_style;
int branch_exists;
const char *prefix;
struct pathspec pathspec;
+ const char *from_treeish;
struct tree *source_tree;
};
@@ -313,17 +334,74 @@ static void mark_ce_for_checkout_no_overlay(struct cache_entry *ce,
}
}
+static int checkout_worktree(const struct checkout_opts *opts)
+{
+ struct checkout state = CHECKOUT_INIT;
+ int nr_checkouts = 0, nr_unmerged = 0;
+ int errs = 0;
+ int pos;
+
+ state.force = 1;
+ state.refresh_cache = 1;
+ state.istate = &the_index;
+
+ enable_delayed_checkout(&state);
+ for (pos = 0; pos < active_nr; pos++) {
+ struct cache_entry *ce = active_cache[pos];
+ if (ce->ce_flags & CE_MATCHED) {
+ if (!ce_stage(ce)) {
+ errs |= checkout_entry(ce, &state,
+ NULL, &nr_checkouts);
+ continue;
+ }
+ if (opts->writeout_stage)
+ errs |= checkout_stage(opts->writeout_stage,
+ ce, pos,
+ &state,
+ &nr_checkouts, opts->overlay_mode);
+ else if (opts->merge)
+ errs |= checkout_merged(pos, &state,
+ &nr_unmerged);
+ pos = skip_same_name(ce, pos) - 1;
+ }
+ }
+ remove_marked_cache_entries(&the_index, 1);
+ remove_scheduled_dirs();
+ errs |= finish_delayed_checkout(&state, &nr_checkouts);
+
+ if (opts->count_checkout_paths) {
+ if (nr_unmerged)
+ fprintf_ln(stderr, Q_("Recreated %d merge conflict",
+ "Recreated %d merge conflicts",
+ nr_unmerged),
+ nr_unmerged);
+ if (opts->source_tree)
+ fprintf_ln(stderr, Q_("Updated %d path from %s",
+ "Updated %d paths from %s",
+ nr_checkouts),
+ nr_checkouts,
+ find_unique_abbrev(&opts->source_tree->object.oid,
+ DEFAULT_ABBREV));
+ else if (!nr_unmerged || nr_checkouts)
+ fprintf_ln(stderr, Q_("Updated %d path from the index",
+ "Updated %d paths from the index",
+ nr_checkouts),
+ nr_checkouts);
+ }
+
+ return errs;
+}
+
static int checkout_paths(const struct checkout_opts *opts,
const char *revision)
{
int pos;
- struct checkout state = CHECKOUT_INIT;
static char *ps_matched;
struct object_id rev;
struct commit *head;
int errs = 0;
struct lock_file lock_file = LOCK_INIT;
- int nr_checkouts = 0, nr_unmerged = 0;
+ int checkout_index;
trace2_cmd_mode(opts->patch_mode ? "patch" : "path");
@@ -333,8 +411,9 @@ static int checkout_paths(const struct checkout_opts *opts,
if (opts->new_branch_log)
die(_("'%s' cannot be used with updating paths"), "-l");
- if (opts->force && opts->patch_mode)
- die(_("'%s' cannot be used with updating paths"), "-f");
+ if (opts->ignore_unmerged && opts->patch_mode)
+ die(_("'%s' cannot be used with updating paths"),
+ opts->ignore_unmerged_opt);
if (opts->force_detach)
die(_("'%s' cannot be used with updating paths"), "--detach");
@@ -342,16 +421,46 @@ static int checkout_paths(const struct checkout_opts *opts,
if (opts->merge && opts->patch_mode)
die(_("'%s' cannot be used with %s"), "--merge", "--patch");
- if (opts->force && opts->merge)
- die(_("'%s' cannot be used with %s"), "-f", "-m");
+ if (opts->ignore_unmerged && opts->merge)
+ die(_("'%s' cannot be used with %s"),
+ opts->ignore_unmerged_opt, "-m");
if (opts->new_branch)
die(_("Cannot update paths and switch to branch '%s' at the same time."),
opts->new_branch);
- if (opts->patch_mode)
- return run_add_interactive(revision, "--patch=checkout",
- &opts->pathspec);
+ if (!opts->checkout_worktree && !opts->checkout_index)
+ die(_("neither '%s' or '%s' is specified"),
+ "--staged", "--worktree");
+
+ if (!opts->checkout_worktree && !opts->from_treeish)
+ die(_("'%s' must be used when '%s' is not specified"),
+ "--worktree", "--source");
+
+ if (opts->checkout_index && !opts->checkout_worktree &&
+ opts->writeout_stage)
+ die(_("'%s' or '%s' cannot be used with %s"),
+ "--ours", "--theirs", "--staged");
+
+ if (opts->checkout_index && !opts->checkout_worktree &&
+ opts->merge)
+ die(_("'%s' or '%s' cannot be used with %s"),
+ "--merge", "--conflict", "--staged");
+
+ if (opts->patch_mode) {
+ const char *patch_mode;
+
+ if (opts->checkout_index && opts->checkout_worktree)
+ patch_mode = "--patch=checkout";
+ else if (opts->checkout_index && !opts->checkout_worktree)
+ patch_mode = "--patch=reset";
+ else if (!opts->checkout_index && opts->checkout_worktree)
+ patch_mode = "--patch=worktree";
+ else
+ BUG("either flag must have been set, worktree=%d, index=%d",
+ opts->checkout_worktree, opts->checkout_index);
+ return run_add_interactive(revision, patch_mode, &opts->pathspec);
+ }
repo_hold_locked_index(the_repository, &lock_file, LOCK_DIE_ON_ERROR);
if (read_cache_preload(&opts->pathspec) < 0)
@@ -392,8 +501,9 @@ static int checkout_paths(const struct checkout_opts *opts,
if (ce->ce_flags & CE_MATCHED) {
if (!ce_stage(ce))
continue;
- if (opts->force) {
- warning(_("path '%s' is unmerged"), ce->name);
+ if (opts->ignore_unmerged) {
+ if (!opts->quiet)
+ warning(_("path '%s' is unmerged"), ce->name);
} else if (opts->writeout_stage) {
errs |= check_stage(opts->writeout_stage, ce, pos, opts->overlay_mode);
} else if (opts->merge) {
@@ -409,57 +519,31 @@ static int checkout_paths(const struct checkout_opts *opts,
return 1;
/* Now we are committed to check them out */
- state.force = 1;
- state.refresh_cache = 1;
- state.istate = &the_index;
+ if (opts->checkout_worktree)
+ errs |= checkout_worktree(opts);
- enable_delayed_checkout(&state);
- for (pos = 0; pos < active_nr; pos++) {
- struct cache_entry *ce = active_cache[pos];
- if (ce->ce_flags & CE_MATCHED) {
- if (!ce_stage(ce)) {
- errs |= checkout_entry(ce, &state,
- NULL, &nr_checkouts);
- continue;
- }
- if (opts->writeout_stage)
- errs |= checkout_stage(opts->writeout_stage,
- ce, pos,
- &state,
- &nr_checkouts, opts->overlay_mode);
- else if (opts->merge)
- errs |= checkout_merged(pos, &state,
- &nr_unmerged);
- pos = skip_same_name(ce, pos) - 1;
- }
- }
- remove_marked_cache_entries(&the_index, 1);
- remove_scheduled_dirs();
- errs |= finish_delayed_checkout(&state, &nr_checkouts);
+ /*
+ * Allow updating the index when checking out from the index.
+ * This is to save new stat info.
+ */
+ if (opts->checkout_worktree && !opts->checkout_index && !opts->source_tree)
+ checkout_index = 1;
+ else
+ checkout_index = opts->checkout_index;
- if (opts->count_checkout_paths) {
- if (nr_unmerged)
- fprintf_ln(stderr, Q_("Recreated %d merge conflict",
- "Recreated %d merge conflicts",
- nr_unmerged),
- nr_unmerged);
- if (opts->source_tree)
- fprintf_ln(stderr, Q_("Updated %d path from %s",
- "Updated %d paths from %s",
- nr_checkouts),
- nr_checkouts,
- find_unique_abbrev(&opts->source_tree->object.oid,
- DEFAULT_ABBREV));
- else if (!nr_unmerged || nr_checkouts)
- fprintf_ln(stderr, Q_("Updated %d path from the index",
- "Updated %d paths from the index",
- nr_checkouts),
- nr_checkouts);
+ if (checkout_index) {
+ if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
+ die(_("unable to write new index file"));
+ } else {
+ /*
+ * NEEDSWORK: if --worktree is not specified, we
+ * should save stat info of checked out files in the
+ * index to avoid the next (potentially costly)
+ * refresh. But it's a bit tricker to do...
+ */
+ rollback_lock_file(&lock_file);
}
- if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
- die(_("unable to write new index file"));
-
read_ref_full("HEAD", 0, &rev, NULL);
head = lookup_commit_reference_gently(the_repository, &rev, 1);
@@ -553,112 +637,6 @@ static void setup_branch_path(struct branch_info *branch)
branch->path = strbuf_detach(&buf, NULL);
}
-/*
- * Skip merging the trees, updating the index and working directory if and
- * only if we are creating a new branch via "git checkout -b <new_branch>."
- */
-static int skip_merge_working_tree(const struct checkout_opts *opts,
- const struct branch_info *old_branch_info,
- const struct branch_info *new_branch_info)
-{
- /*
- * Do the merge if sparse checkout is on and the user has not opted in
- * to the optimized behavior
- */
- if (core_apply_sparse_checkout && !checkout_optimize_new_branch)
- return 0;
-
- /*
- * We must do the merge if we are actually moving to a new commit.
- */
- if (!old_branch_info->commit || !new_branch_info->commit ||
- !oideq(&old_branch_info->commit->object.oid,
- &new_branch_info->commit->object.oid))
- return 0;
-
- /*
- * opts->patch_mode cannot be used with switching branches so is
- * not tested here
- */
-
- /*
- * opts->quiet only impacts output so doesn't require a merge
- */
-
- /*
- * Honor the explicit request for a three-way merge or to throw away
- * local changes
- */
- if (opts->merge || opts->force)
- return 0;
-
- /*
- * --detach is documented as "updating the index and the files in the
- * working tree" but this optimization skips those steps so fall through
- * to the regular code path.
- */
- if (opts->force_detach)
- return 0;
-
- /*
- * opts->writeout_stage cannot be used with switching branches so is
- * not tested here
- */
-
- /*
- * Honor the explicit ignore requests
- */
- if (!opts->overwrite_ignore || opts->ignore_skipworktree ||
- opts->ignore_other_worktrees)
- return 0;
-
- /*
- * opts->show_progress only impacts output so doesn't require a merge
- */
-
- /*
- * opts->overlay_mode cannot be used with switching branches so is
- * not tested here
- */
-
- /*
- * If we aren't creating a new branch any changes or updates will
- * happen in the existing branch. Since that could only be updating
- * the index and working directory, we don't want to skip those steps
- * or we've defeated any purpose in running the command.
- */
- if (!opts->new_branch)
- return 0;
-
- /*
- * new_branch_force is defined to "create/reset and checkout a branch"
- * so needs to go through the merge to do the reset
- */
- if (opts->new_branch_force)
- return 0;
-
- /*
- * A new orphaned branch requrires the index and the working tree to be
- * adjusted to <start_point>
- */
- if (opts->new_orphan_branch)
- return 0;
-
- /*
- * Remaining variables are not checkout options but used to track state
- */
-
- /*
- * Do the merge if this is the initial checkout. We cannot use
- * is_cache_unborn() here because the index hasn't been loaded yet
- * so cache_nr and timestamp.sec are always zero.
- */
- if (!file_exists(get_index_file()))
- return 0;
-
- return 1;
-}
-
static int merge_working_tree(const struct checkout_opts *opts,
struct branch_info *old_branch_info,
struct branch_info *new_branch_info,
@@ -666,15 +644,21 @@ static int merge_working_tree(const struct checkout_opts *opts,
{
int ret;
struct lock_file lock_file = LOCK_INIT;
+ struct tree *new_tree;
hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
if (read_cache_preload(NULL) < 0)
return error(_("index file corrupt"));
resolve_undo_clear();
- if (opts->force) {
- ret = reset_tree(get_commit_tree(new_branch_info->commit),
- opts, 1, writeout_error);
+ if (opts->new_orphan_branch && opts->orphan_from_empty_tree) {
+ if (new_branch_info->commit)
+ BUG("'switch --orphan' should never accept a commit as starting point");
+ new_tree = parse_tree_indirect(the_hash_algo->empty_tree);
+ } else
+ new_tree = get_commit_tree(new_branch_info->commit);
+ if (opts->discard_changes) {
+ ret = reset_tree(new_tree, opts, 1, writeout_error);
if (ret)
return ret;
} else {
@@ -712,7 +696,8 @@ static int merge_working_tree(const struct checkout_opts *opts,
&old_branch_info->commit->object.oid :
the_hash_algo->empty_tree);
init_tree_desc(&trees[0], tree->buffer, tree->size);
- tree = parse_tree_indirect(&new_branch_info->commit->object.oid);
+ parse_tree(new_tree);
+ tree = new_tree;
init_tree_desc(&trees[1], tree->buffer, tree->size);
ret = unpack_trees(2, trees, &topts);
@@ -777,7 +762,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
o.verbosity = 0;
work = write_tree_from_memory(&o);
- ret = reset_tree(get_commit_tree(new_branch_info->commit),
+ ret = reset_tree(new_tree,
opts, 1,
writeout_error);
if (ret)
@@ -786,13 +771,13 @@ static int merge_working_tree(const struct checkout_opts *opts,
o.branch1 = new_branch_info->name;
o.branch2 = "local";
ret = merge_trees(&o,
- get_commit_tree(new_branch_info->commit),
+ new_tree,
work,
old_tree,
&result);
if (ret < 0)
exit(128);
- ret = reset_tree(get_commit_tree(new_branch_info->commit),
+ ret = reset_tree(new_tree,
opts, 0,
writeout_error);
strbuf_release(&o.obuf);
@@ -810,7 +795,7 @@ static int merge_working_tree(const struct checkout_opts *opts,
if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
die(_("unable to write new index file"));
- if (!opts->force && !opts->quiet)
+ if (!opts->discard_changes && !opts->quiet && new_branch_info->commit)
show_local_changes(&new_branch_info->commit->object, &opts->diff_options);
return 0;
@@ -915,7 +900,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
delete_reflog(old_branch_info->path);
}
}
- remove_branch_state(the_repository);
+ remove_branch_state(the_repository, !opts->quiet);
strbuf_release(&msg);
if (!opts->quiet &&
(new_branch_info->path || (!opts->force_detach && !strcmp(new_branch_info->name, "HEAD"))))
@@ -1011,7 +996,10 @@ static void orphaned_commit_warning(struct commit *old_commit, struct commit *ne
add_pending_object(&revs, object, oid_to_hex(&object->oid));
for_each_ref(add_pending_uninteresting_ref, &revs);
- add_pending_oid(&revs, "HEAD", &new_commit->object.oid, UNINTERESTING);
+ if (new_commit)
+ add_pending_oid(&revs, "HEAD",
+ &new_commit->object.oid,
+ UNINTERESTING);
if (prepare_revision_walk(&revs))
die(_("internal error in revision walk"));
@@ -1032,6 +1020,7 @@ static int switch_branches(const struct checkout_opts *opts,
void *path_to_free;
struct object_id rev;
int flag, writeout_error = 0;
+ int do_merge = 1;
trace2_cmd_mode("branch");
@@ -1045,22 +1034,26 @@ static int switch_branches(const struct checkout_opts *opts,
if (old_branch_info.path)
skip_prefix(old_branch_info.path, "refs/heads/", &old_branch_info.name);
+ if (opts->new_orphan_branch && opts->orphan_from_empty_tree) {
+ if (new_branch_info->name)
+ BUG("'switch --orphan' should never accept a commit as starting point");
+ new_branch_info->commit = NULL;
+ new_branch_info->name = "(empty)";
+ do_merge = 1;
+ }
+
if (!new_branch_info->name) {
new_branch_info->name = "HEAD";
new_branch_info->commit = old_branch_info.commit;
if (!new_branch_info->commit)
die(_("You are on a branch yet to be born"));
parse_commit_or_die(new_branch_info->commit);
+
+ if (opts->only_merge_on_switching_branches)
+ do_merge = 0;
}
- /* optimize the "checkout -b <new_branch> path */
- if (skip_merge_working_tree(opts, &old_branch_info, new_branch_info)) {
- if (!checkout_optimize_new_branch && !opts->quiet) {
- if (read_cache_preload(NULL) < 0)
- return error(_("index file corrupt"));
- show_local_changes(&new_branch_info->commit->object, &opts->diff_options);
- }
- } else {
+ if (do_merge) {
ret = merge_working_tree(opts, &old_branch_info, new_branch_info, &writeout_error);
if (ret) {
free(path_to_free);
@@ -1080,11 +1073,6 @@ static int switch_branches(const struct checkout_opts *opts,
static int git_checkout_config(const char *var, const char *value, void *cb)
{
- if (!strcmp(var, "checkout.optimizenewbranch")) {
- checkout_optimize_new_branch = git_config_bool(var, value);
- return 0;
- }
-
if (!strcmp(var, "diff.ignoresubmodules")) {
struct checkout_opts *opts = cb;
handle_ignore_submodules_arg(&opts->diff_options, value);
@@ -1097,6 +1085,34 @@ static int git_checkout_config(const char *var, const char *value, void *cb)
return git_xmerge_config(var, value, NULL);
}
+static void setup_new_branch_info_and_source_tree(
+ struct branch_info *new_branch_info,
+ struct checkout_opts *opts,
+ struct object_id *rev,
+ const char *arg)
+{
+ struct tree **source_tree = &opts->source_tree;
+ struct object_id branch_rev;
+
+ new_branch_info->name = arg;
+ setup_branch_path(new_branch_info);
+
+ if (!check_refname_format(new_branch_info->path, 0) &&
+ !read_ref(new_branch_info->path, &branch_rev))
+ oidcpy(rev, &branch_rev);
+ else
+ new_branch_info->path = NULL; /* not an existing branch */
+
+ new_branch_info->commit = lookup_commit_reference_gently(the_repository, rev, 1);
+ if (!new_branch_info->commit) {
+ /* not a commit */
+ *source_tree = parse_tree_indirect(rev);
+ } else {
+ parse_commit_or_die(new_branch_info->commit);
+ *source_tree = get_commit_tree(new_branch_info->commit);
+ }
+}
+
static int parse_branchname_arg(int argc, const char **argv,
int dwim_new_local_branch_ok,
struct branch_info *new_branch_info,
@@ -1104,10 +1120,8 @@ static int parse_branchname_arg(int argc, const char **argv,
struct object_id *rev,
int *dwim_remotes_matched)
{
- struct tree **source_tree = &opts->source_tree;
const char **new_branch = &opts->new_branch;
int argcount = 0;
- struct object_id branch_rev;
const char *arg;
int dash_dash_pos;
int has_dash_dash = 0;
@@ -1157,10 +1171,16 @@ static int parse_branchname_arg(int argc, const char **argv,
if (!argc)
return 0;
+ if (!opts->accept_pathspec) {
+ if (argc > 1)
+ die(_("only one reference expected"));
+ has_dash_dash = 1; /* helps disambiguate */
+ }
+
arg = argv[0];
dash_dash_pos = -1;
for (i = 0; i < argc; i++) {
- if (!strcmp(argv[i], "--")) {
+ if (opts->accept_pathspec && !strcmp(argv[i], "--")) {
dash_dash_pos = i;
break;
}
@@ -1194,11 +1214,12 @@ static int parse_branchname_arg(int argc, const char **argv,
recover_with_dwim = 0;
/*
- * Accept "git checkout foo" and "git checkout foo --"
- * as candidates for dwim.
+ * Accept "git checkout foo", "git checkout foo --"
+ * and "git switch foo" as candidates for dwim.
*/
if (!(argc == 1 && !has_dash_dash) &&
- !(argc == 2 && has_dash_dash))
+ !(argc == 2 && has_dash_dash) &&
+ opts->accept_pathspec)
recover_with_dwim = 0;
if (recover_with_dwim) {
@@ -1229,26 +1250,11 @@ static int parse_branchname_arg(int argc, const char **argv,
argv++;
argc--;
- new_branch_info->name = arg;
- setup_branch_path(new_branch_info);
-
- if (!check_refname_format(new_branch_info->path, 0) &&
- !read_ref(new_branch_info->path, &branch_rev))
- oidcpy(rev, &branch_rev);
- else
- new_branch_info->path = NULL; /* not an existing branch */
-
- new_branch_info->commit = lookup_commit_reference_gently(the_repository, rev, 1);
- if (!new_branch_info->commit) {
- /* not a commit */
- *source_tree = parse_tree_indirect(rev);
- } else {
- parse_commit_or_die(new_branch_info->commit);
- *source_tree = get_commit_tree(new_branch_info->commit);
- }
+ setup_new_branch_info_and_source_tree(new_branch_info, opts, rev, arg);
- if (!*source_tree) /* case (1): want a tree */
+ if (!opts->source_tree) /* case (1): want a tree */
die(_("reference is not a tree: %s"), arg);
+
if (!has_dash_dash) { /* case (3).(d) -> (1) */
/*
* Do not complain the most common case
@@ -1258,7 +1264,7 @@ static int parse_branchname_arg(int argc, const char **argv,
*/
if (argc)
verify_non_filename(opts->prefix, arg);
- } else {
+ } else if (opts->accept_pathspec) {
argcount++;
argv++;
argc--;
@@ -1285,6 +1291,60 @@ static int switch_unborn_to_new_branch(const struct checkout_opts *opts)
return status;
}
+static void die_expecting_a_branch(const struct branch_info *branch_info)
+{
+ struct object_id oid;
+ char *to_free;
+
+ if (dwim_ref(branch_info->name, strlen(branch_info->name), &oid, &to_free) == 1) {
+ const char *ref = to_free;
+
+ if (skip_prefix(ref, "refs/tags/", &ref))
+ die(_("a branch is expected, got tag '%s'"), ref);
+ if (skip_prefix(ref, "refs/remotes/", &ref))
+ die(_("a branch is expected, got remote branch '%s'"), ref);
+ die(_("a branch is expected, got '%s'"), ref);
+ }
+ if (branch_info->commit)
+ die(_("a branch is expected, got commit '%s'"), branch_info->name);
+ /*
+ * This case should never happen because we already die() on
+ * non-commit, but just in case.
+ */
+ die(_("a branch is expected, got '%s'"), branch_info->name);
+}
+
+static void die_if_some_operation_in_progress(void)
+{
+ struct wt_status_state state;
+
+ memset(&state, 0, sizeof(state));
+ wt_status_get_state(the_repository, &state, 0);
+
+ if (state.merge_in_progress)
+ die(_("cannot switch branch while merging\n"
+ "Consider \"git merge --quit\" "
+ "or \"git worktree add\"."));
+ if (state.am_in_progress)
+ die(_("cannot switch branch in the middle of an am session\n"
+ "Consider \"git am --quit\" "
+ "or \"git worktree add\"."));
+ if (state.rebase_interactive_in_progress || state.rebase_in_progress)
+ die(_("cannot switch branch while rebasing\n"
+ "Consider \"git rebase --quit\" "
+ "or \"git worktree add\"."));
+ if (state.cherry_pick_in_progress)
+ die(_("cannot switch branch while cherry-picking\n"
+ "Consider \"git cherry-pick --quit\" "
+ "or \"git worktree add\"."));
+ if (state.revert_in_progress)
+ die(_("cannot switch branch while reverting\n"
+ "Consider \"git revert --quit\" "
+ "or \"git worktree add\"."));
+ if (state.bisect_in_progress)
+ warning(_("you are switching branch while bisecting"));
+}
+
static int checkout_branch(struct checkout_opts *opts,
struct branch_info *new_branch_info)
{
@@ -1295,9 +1355,9 @@ static int checkout_branch(struct checkout_opts *opts,
die(_("'%s' cannot be used with switching branches"),
"--patch");
- if (!opts->overlay_mode)
+ if (opts->overlay_mode != -1)
die(_("'%s' cannot be used with switching branches"),
- "--no-overlay");
+ "--[no]-overlay");
if (opts->writeout_stage)
die(_("'%s' cannot be used with switching branches"),
@@ -1306,6 +1366,9 @@ static int checkout_branch(struct checkout_opts *opts,
if (opts->force && opts->merge)
die(_("'%s' cannot be used with '%s'"), "-f", "-m");
+ if (opts->discard_changes && opts->merge)
+ die(_("'%s' cannot be used with '%s'"), "--discard-changes", "--merge");
+
if (opts->force_detach && opts->new_branch)
die(_("'%s' cannot be used with '%s'"),
"--detach", "-b/-B/--orphan");
@@ -1313,6 +1376,8 @@ static int checkout_branch(struct checkout_opts *opts,
if (opts->new_orphan_branch) {
if (opts->track != BRANCH_TRACK_UNSPECIFIED)
die(_("'%s' cannot be used with '%s'"), "--orphan", "-t");
+ if (opts->orphan_from_empty_tree && new_branch_info->name)
+ die(_("'%s' cannot take <start-point>"), "--orphan");
} else if (opts->force_detach) {
if (opts->track != BRANCH_TRACK_UNSPECIFIED)
die(_("'%s' cannot be used with '%s'"), "--detach", "-t");
@@ -1323,6 +1388,23 @@ static int checkout_branch(struct checkout_opts *opts,
die(_("Cannot switch branch to a non-commit '%s'"),
new_branch_info->name);
+ if (!opts->switch_branch_doing_nothing_is_ok &&
+ !new_branch_info->name &&
+ !opts->new_branch &&
+ !opts->force_detach)
+ die(_("missing branch or commit argument"));
+
+ if (!opts->implicit_detach &&
+ !opts->force_detach &&
+ !opts->new_branch &&
+ !opts->new_branch_force &&
+ new_branch_info->name &&
+ !new_branch_info->path)
+ die_expecting_a_branch(new_branch_info);
+
+ if (!opts->can_switch_when_in_progress)
+ die_if_some_operation_in_progress();
+
if (new_branch_info->path && !opts->force_detach && !opts->new_branch &&
!opts->ignore_other_worktrees) {
int flag;
@@ -1344,99 +1426,148 @@ static int checkout_branch(struct checkout_opts *opts,
return switch_branches(opts, new_branch_info);
}
-int cmd_checkout(int argc, const char **argv, const char *prefix)
+static struct option *add_common_options(struct checkout_opts *opts,
+ struct option *prevopts)
{
- struct checkout_opts opts;
- struct branch_info new_branch_info;
- char *conflict_style = NULL;
- int dwim_new_local_branch, no_dwim_new_local_branch = 0;
- int dwim_remotes_matched = 0;
struct option options[] = {
- OPT__QUIET(&opts.quiet, N_("suppress progress reporting")),
- OPT_STRING('b', NULL, &opts.new_branch, N_("branch"),
- N_("create and checkout a new branch")),
- OPT_STRING('B', NULL, &opts.new_branch_force, N_("branch"),
- N_("create/reset and checkout a branch")),
- OPT_BOOL('l', NULL, &opts.new_branch_log, N_("create reflog for new branch")),
- OPT_BOOL(0, "detach", &opts.force_detach, N_("detach HEAD at named commit")),
- OPT_SET_INT('t', "track", &opts.track, N_("set upstream info for new branch"),
+ OPT__QUIET(&opts->quiet, N_("suppress progress reporting")),
+ { OPTION_CALLBACK, 0, "recurse-submodules", NULL,
+ "checkout", "control recursive updating of submodules",
+ PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater },
+ OPT_BOOL(0, "progress", &opts->show_progress, N_("force progress reporting")),
+ OPT_BOOL('m', "merge", &opts->merge, N_("perform a 3-way merge with the new branch")),
+ OPT_STRING(0, "conflict", &opts->conflict_style, N_("style"),
+ N_("conflict style (merge or diff3)")),
+ OPT_END()
+ };
+ struct option *newopts = parse_options_concat(prevopts, options);
+ free(prevopts);
+ return newopts;
+}
+
+static struct option *add_common_switch_branch_options(
+ struct checkout_opts *opts, struct option *prevopts)
+{
+ struct option options[] = {
+ OPT_BOOL('d', "detach", &opts->force_detach, N_("detach HEAD at named commit")),
+ OPT_SET_INT('t', "track", &opts->track, N_("set upstream info for new branch"),
BRANCH_TRACK_EXPLICIT),
- OPT_STRING(0, "orphan", &opts.new_orphan_branch, N_("new-branch"), N_("new unparented branch")),
- OPT_SET_INT_F('2', "ours", &opts.writeout_stage,
+ OPT__FORCE(&opts->force, N_("force checkout (throw away local modifications)"),
+ PARSE_OPT_NOCOMPLETE),
+ OPT_STRING(0, "orphan", &opts->new_orphan_branch, N_("new-branch"), N_("new unparented branch")),
+ OPT_BOOL_F(0, "overwrite-ignore", &opts->overwrite_ignore,
+ N_("update ignored files (default)"),
+ PARSE_OPT_NOCOMPLETE),
+ OPT_BOOL(0, "ignore-other-worktrees", &opts->ignore_other_worktrees,
+ N_("do not check if another worktree is holding the given ref")),
+ OPT_END()
+ };
+ struct option *newopts = parse_options_concat(prevopts, options);
+ free(prevopts);
+ return newopts;
+}
+
+static struct option *add_checkout_path_options(struct checkout_opts *opts,
+ struct option *prevopts)
+{
+ struct option options[] = {
+ OPT_SET_INT_F('2', "ours", &opts->writeout_stage,
N_("checkout our version for unmerged files"),
2, PARSE_OPT_NONEG),
- OPT_SET_INT_F('3', "theirs", &opts.writeout_stage,
+ OPT_SET_INT_F('3', "theirs", &opts->writeout_stage,
N_("checkout their version for unmerged files"),
3, PARSE_OPT_NONEG),
- OPT__FORCE(&opts.force, N_("force checkout (throw away local modifications)"),
- PARSE_OPT_NOCOMPLETE),
- OPT_BOOL('m', "merge", &opts.merge, N_("perform a 3-way merge with the new branch")),
- OPT_BOOL_F(0, "overwrite-ignore", &opts.overwrite_ignore,
- N_("update ignored files (default)"),
- PARSE_OPT_NOCOMPLETE),
- OPT_STRING(0, "conflict", &conflict_style, N_("style"),
- N_("conflict style (merge or diff3)")),
- OPT_BOOL('p', "patch", &opts.patch_mode, N_("select hunks interactively")),
- OPT_BOOL(0, "ignore-skip-worktree-bits", &opts.ignore_skipworktree,
+ OPT_BOOL('p', "patch", &opts->patch_mode, N_("select hunks interactively")),
+ OPT_BOOL(0, "ignore-skip-worktree-bits", &opts->ignore_skipworktree,
N_("do not limit pathspecs to sparse entries only")),
- OPT_BOOL(0, "no-guess", &no_dwim_new_local_branch,
- N_("do not second guess 'git checkout <no-such-branch>'")),
- OPT_BOOL(0, "ignore-other-worktrees", &opts.ignore_other_worktrees,
- N_("do not check if another worktree is holding the given ref")),
- { OPTION_CALLBACK, 0, "recurse-submodules", NULL,
- "checkout", "control recursive updating of submodules",
- PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater },
- OPT_BOOL(0, "progress", &opts.show_progress, N_("force progress reporting")),
- OPT_BOOL(0, "overlay", &opts.overlay_mode, N_("use overlay mode (default)")),
- OPT_END(),
+ OPT_END()
};
+ struct option *newopts = parse_options_concat(prevopts, options);
+ free(prevopts);
+ return newopts;
+}
+
+static int checkout_main(int argc, const char **argv, const char *prefix,
+ struct checkout_opts *opts, struct option *options,
+ const char * const usagestr[])
+{
+ struct branch_info new_branch_info;
+ int dwim_remotes_matched = 0;
+ int parseopt_flags = 0;
- memset(&opts, 0, sizeof(opts));
memset(&new_branch_info, 0, sizeof(new_branch_info));
- opts.overwrite_ignore = 1;
- opts.prefix = prefix;
- opts.show_progress = -1;
- opts.overlay_mode = -1;
+ opts->overwrite_ignore = 1;
+ opts->prefix = prefix;
+ opts->show_progress = -1;
+
+ git_config(git_checkout_config, opts);
- git_config(git_checkout_config, &opts);
+ opts->track = BRANCH_TRACK_UNSPECIFIED;
- opts.track = BRANCH_TRACK_UNSPECIFIED;
+ if (!opts->accept_pathspec && !opts->accept_ref)
+ BUG("make up your mind, you need to take _something_");
+ if (opts->accept_pathspec && opts->accept_ref)
+ parseopt_flags = PARSE_OPT_KEEP_DASHDASH;
- argc = parse_options(argc, argv, prefix, options, checkout_usage,
- PARSE_OPT_KEEP_DASHDASH);
+ argc = parse_options(argc, argv, prefix, options,
+ usagestr, parseopt_flags);
- dwim_new_local_branch = !no_dwim_new_local_branch;
- if (opts.show_progress < 0) {
- if (opts.quiet)
- opts.show_progress = 0;
+ if (opts->show_progress < 0) {
+ if (opts->quiet)
+ opts->show_progress = 0;
else
- opts.show_progress = isatty(2);
+ opts->show_progress = isatty(2);
}
- if (conflict_style) {
- opts.merge = 1; /* implied */
- git_xmerge_config("merge.conflictstyle", conflict_style, NULL);
+ if (opts->conflict_style) {
+ opts->merge = 1; /* implied */
+ git_xmerge_config("merge.conflictstyle", opts->conflict_style, NULL);
+ }
+ if (opts->force) {
+ opts->discard_changes = 1;
+ opts->ignore_unmerged_opt = "--force";
+ opts->ignore_unmerged = 1;
}
- if ((!!opts.new_branch + !!opts.new_branch_force + !!opts.new_orphan_branch) > 1)
+ if ((!!opts->new_branch + !!opts->new_branch_force + !!opts->new_orphan_branch) > 1)
die(_("-b, -B and --orphan are mutually exclusive"));
- if (opts.overlay_mode == 1 && opts.patch_mode)
+ if (opts->overlay_mode == 1 && opts->patch_mode)
die(_("-p and --overlay are mutually exclusive"));
+ if (opts->checkout_index >= 0 || opts->checkout_worktree >= 0) {
+ if (opts->checkout_index < 0)
+ opts->checkout_index = 0;
+ if (opts->checkout_worktree < 0)
+ opts->checkout_worktree = 0;
+ } else {
+ if (opts->checkout_index < 0)
+ opts->checkout_index = -opts->checkout_index - 1;
+ if (opts->checkout_worktree < 0)
+ opts->checkout_worktree = -opts->checkout_worktree - 1;
+ }
+ if (opts->checkout_index < 0 || opts->checkout_worktree < 0)
+ BUG("these flags should be non-negative by now");
+ /*
+ * convenient shortcut: "git restore --staged" equals
+ * "git restore --staged --source HEAD"
+ */
+ if (!opts->from_treeish && opts->checkout_index && !opts->checkout_worktree)
+ opts->from_treeish = "HEAD";
+
/*
* From here on, new_branch will contain the branch to be checked out,
* and new_branch_force and new_orphan_branch will tell us which one of
* -b/-B/--orphan is being used.
*/
- if (opts.new_branch_force)
- opts.new_branch = opts.new_branch_force;
+ if (opts->new_branch_force)
+ opts->new_branch = opts->new_branch_force;
- if (opts.new_orphan_branch)
- opts.new_branch = opts.new_orphan_branch;
+ if (opts->new_orphan_branch)
+ opts->new_branch = opts->new_orphan_branch;
/* --track without -b/-B/--orphan should DWIM */
- if (opts.track != BRANCH_TRACK_UNSPECIFIED && !opts.new_branch) {
+ if (opts->track != BRANCH_TRACK_UNSPECIFIED && !opts->new_branch) {
const char *argv0 = argv[0];
if (!argc || !strcmp(argv0, "--"))
die(_("--track needs a branch name"));
@@ -1445,7 +1576,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
argv0 = strchr(argv0, '/');
if (!argv0 || !argv0[1])
die(_("missing branch name; try -b"));
- opts.new_branch = argv0 + 1;
+ opts->new_branch = argv0 + 1;
}
/*
@@ -1461,59 +1592,75 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
* including "last branch" syntax and DWIM-ery for names of
* remote branches, erroring out for invalid or ambiguous cases.
*/
- if (argc) {
+ if (argc && opts->accept_ref) {
struct object_id rev;
int dwim_ok =
- !opts.patch_mode &&
- dwim_new_local_branch &&
- opts.track == BRANCH_TRACK_UNSPECIFIED &&
- !opts.new_branch;
+ !opts->patch_mode &&
+ opts->dwim_new_local_branch &&
+ opts->track == BRANCH_TRACK_UNSPECIFIED &&
+ !opts->new_branch;
int n = parse_branchname_arg(argc, argv, dwim_ok,
- &new_branch_info, &opts, &rev,
+ &new_branch_info, opts, &rev,
&dwim_remotes_matched);
argv += n;
argc -= n;
+ } else if (!opts->accept_ref && opts->from_treeish) {
+ struct object_id rev;
+
+ if (get_oid_mb(opts->from_treeish, &rev))
+ die(_("could not resolve %s"), opts->from_treeish);
+
+ setup_new_branch_info_and_source_tree(&new_branch_info,
+ opts, &rev,
+ opts->from_treeish);
+
+ if (!opts->source_tree)
+ die(_("reference is not a tree: %s"), opts->from_treeish);
}
+ if (opts->accept_pathspec && !opts->empty_pathspec_ok && !argc &&
+ !opts->patch_mode) /* patch mode is special */
+ die(_("you must specify path(s) to restore"));
+
if (argc) {
- parse_pathspec(&opts.pathspec, 0,
- opts.patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0,
+ parse_pathspec(&opts->pathspec, 0,
+ opts->patch_mode ? PATHSPEC_PREFIX_ORIGIN : 0,
prefix, argv);
- if (!opts.pathspec.nr)
+ if (!opts->pathspec.nr)
die(_("invalid path specification"));
/*
* Try to give more helpful suggestion.
* new_branch && argc > 1 will be caught later.
*/
- if (opts.new_branch && argc == 1)
+ if (opts->new_branch && argc == 1)
die(_("'%s' is not a commit and a branch '%s' cannot be created from it"),
- argv[0], opts.new_branch);
+ argv[0], opts->new_branch);
- if (opts.force_detach)
+ if (opts->force_detach)
die(_("git checkout: --detach does not take a path argument '%s'"),
argv[0]);
- if (1 < !!opts.writeout_stage + !!opts.force + !!opts.merge)
+ if (1 < !!opts->writeout_stage + !!opts->force + !!opts->merge)
die(_("git checkout: --ours/--theirs, --force and --merge are incompatible when\n"
"checking out of the index."));
}
- if (opts.new_branch) {
+ if (opts->new_branch) {
struct strbuf buf = STRBUF_INIT;
- if (opts.new_branch_force)
- opts.branch_exists = validate_branchname(opts.new_branch, &buf);
+ if (opts->new_branch_force)
+ opts->branch_exists = validate_branchname(opts->new_branch, &buf);
else
- opts.branch_exists =
- validate_new_branchname(opts.new_branch, &buf, 0);
+ opts->branch_exists =
+ validate_new_branchname(opts->new_branch, &buf, 0);
strbuf_release(&buf);
}
UNLEAK(opts);
- if (opts.patch_mode || opts.pathspec.nr) {
- int ret = checkout_paths(&opts, new_branch_info.name);
+ if (opts->patch_mode || opts->pathspec.nr) {
+ int ret = checkout_paths(opts, new_branch_info.name);
if (ret && dwim_remotes_matched > 1 &&
advice_checkout_ambiguous_remote_branch_name)
advise(_("'%s' matched more than one remote tracking branch.\n"
@@ -1532,6 +1679,123 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
dwim_remotes_matched);
return ret;
} else {
- return checkout_branch(&opts, &new_branch_info);
+ return checkout_branch(opts, &new_branch_info);
}
}
+
+int cmd_checkout(int argc, const char **argv, const char *prefix)
+{
+ struct checkout_opts opts;
+ struct option *options;
+ struct option checkout_options[] = {
+ OPT_STRING('b', NULL, &opts.new_branch, N_("branch"),
+ N_("create and checkout a new branch")),
+ OPT_STRING('B', NULL, &opts.new_branch_force, N_("branch"),
+ N_("create/reset and checkout a branch")),
+ OPT_BOOL('l', NULL, &opts.new_branch_log, N_("create reflog for new branch")),
+ OPT_BOOL(0, "guess", &opts.dwim_new_local_branch,
+ N_("second guess 'git checkout <no-such-branch>' (default)")),
+ OPT_BOOL(0, "overlay", &opts.overlay_mode, N_("use overlay mode (default)")),
+ OPT_END()
+ };
+ int ret;
+
+ memset(&opts, 0, sizeof(opts));
+ opts.dwim_new_local_branch = 1;
+ opts.switch_branch_doing_nothing_is_ok = 1;
+ opts.only_merge_on_switching_branches = 0;
+ opts.accept_ref = 1;
+ opts.accept_pathspec = 1;
+ opts.implicit_detach = 1;
+ opts.can_switch_when_in_progress = 1;
+ opts.orphan_from_empty_tree = 0;
+ opts.empty_pathspec_ok = 1;
+ opts.overlay_mode = -1;
+ opts.checkout_index = -2; /* default on */
+ opts.checkout_worktree = -2; /* default on */
+
+ options = parse_options_dup(checkout_options);
+ options = add_common_options(&opts, options);
+ options = add_common_switch_branch_options(&opts, options);
+ options = add_checkout_path_options(&opts, options);
+
+ ret = checkout_main(argc, argv, prefix, &opts,
+ options, checkout_usage);
+ FREE_AND_NULL(options);
+ return ret;
+}
+
+int cmd_switch(int argc, const char **argv, const char *prefix)
+{
+ struct checkout_opts opts;
+ struct option *options = NULL;
+ struct option switch_options[] = {
+ OPT_STRING('c', "create", &opts.new_branch, N_("branch"),
+ N_("create and switch to a new branch")),
+ OPT_STRING('C', "force-create", &opts.new_branch_force, N_("branch"),
+ N_("create/reset and switch to a branch")),
+ OPT_BOOL(0, "guess", &opts.dwim_new_local_branch,
+ N_("second guess 'git switch <no-such-branch>'")),
+ OPT_BOOL(0, "discard-changes", &opts.discard_changes,
+ N_("throw away local modifications")),
+ OPT_END()
+ };
+ int ret;
+
+ memset(&opts, 0, sizeof(opts));
+ opts.dwim_new_local_branch = 1;
+ opts.accept_ref = 1;
+ opts.accept_pathspec = 0;
+ opts.switch_branch_doing_nothing_is_ok = 0;
+ opts.only_merge_on_switching_branches = 1;
+ opts.implicit_detach = 0;
+ opts.can_switch_when_in_progress = 0;
+ opts.orphan_from_empty_tree = 1;
+ opts.overlay_mode = -1;
+
+ options = parse_options_dup(switch_options);
+ options = add_common_options(&opts, options);
+ options = add_common_switch_branch_options(&opts, options);
+
+ ret = checkout_main(argc, argv, prefix, &opts,
+ options, switch_branch_usage);
+ FREE_AND_NULL(options);
+ return ret;
+}
+
+int cmd_restore(int argc, const char **argv, const char *prefix)
+{
+ struct checkout_opts opts;
+ struct option *options;
+ struct option restore_options[] = {
+ OPT_STRING('s', "source", &opts.from_treeish, "<tree-ish>",
+ N_("where the checkout from")),
+ OPT_BOOL('S', "staged", &opts.checkout_index,
+ N_("restore the index")),
+ OPT_BOOL('W', "worktree", &opts.checkout_worktree,
+ N_("restore the working tree (default)")),
+ OPT_BOOL(0, "ignore-unmerged", &opts.ignore_unmerged,
+ N_("ignore unmerged entries")),
+ OPT_BOOL(0, "overlay", &opts.overlay_mode, N_("use overlay mode")),
+ OPT_END()
+ };
+ int ret;
+
+ memset(&opts, 0, sizeof(opts));
+ opts.accept_ref = 0;
+ opts.accept_pathspec = 1;
+ opts.empty_pathspec_ok = 0;
+ opts.overlay_mode = 0;
+ opts.checkout_index = -1; /* default off */
+ opts.checkout_worktree = -2; /* default on */
+ opts.ignore_unmerged_opt = "--ignore-unmerged";
+
+ options = parse_options_dup(restore_options);
+ options = add_common_options(&opts, options);
+ options = add_checkout_path_options(&opts, options);
+
+ ret = checkout_main(argc, argv, prefix, &opts,
+ options, restore_usage);
+ FREE_AND_NULL(options);
+ return ret;
+}
diff --git a/builtin/clone.c b/builtin/clone.c
index 85b0d31..a4fe728 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -67,6 +67,7 @@ static int max_jobs = -1;
static struct string_list option_recurse_submodules = STRING_LIST_INIT_NODUP;
static struct list_objects_filter_options filter_options;
static struct string_list server_options = STRING_LIST_INIT_NODUP;
+static int option_remote_submodules;
static int recurse_submodules_cb(const struct option *opt,
const char *arg, int unset)
@@ -142,6 +143,8 @@ static struct option builtin_clone_options[] = {
OPT_SET_INT('6', "ipv6", &family, N_("use IPv6 addresses only"),
TRANSPORT_FAMILY_IPV6),
OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),
+ OPT_BOOL(0, "remote-submodules", &option_remote_submodules,
+ N_("any cloned submodules will use their remote-tracking branch")),
OPT_END()
};
@@ -354,8 +357,7 @@ static void setup_reference(void)
add_one_reference, &required);
}
-static void copy_alternates(struct strbuf *src, struct strbuf *dst,
- const char *src_repo)
+static void copy_alternates(struct strbuf *src, const char *src_repo)
{
/*
* Read from the source objects/info/alternates file
@@ -436,7 +438,7 @@ static void copy_or_link_directory(struct strbuf *src, struct strbuf *dest,
/* Files that cannot be copied bit-for-bit... */
if (!strcmp(src->buf + src_baselen, "/info/alternates")) {
- copy_alternates(src, dest, src_repo);
+ copy_alternates(src, src_repo);
continue;
}
@@ -492,7 +494,7 @@ static enum {
static const char junk_leave_repo_msg[] =
N_("Clone succeeded, but checkout failed.\n"
"You can inspect what was checked out with 'git status'\n"
- "and retry the checkout with 'git checkout -f HEAD'\n");
+ "and retry with 'git restore --source=HEAD :/'\n");
static void remove_junk(void)
{
@@ -791,6 +793,11 @@ static int checkout(int submodule_progress)
if (option_verbosity < 0)
argv_array_push(&args, "--quiet");
+ if (option_remote_submodules) {
+ argv_array_push(&args, "--remote");
+ argv_array_push(&args, "--no-fetch");
+ }
+
err = run_command_v_opt(args.argv, RUN_GIT_CMD);
argv_array_clear(&args);
}
@@ -1220,7 +1227,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
remote_head_points_at, &branch_top);
if (filter_options.choice)
- partial_clone_register("origin", &filter_options);
+ partial_clone_register(option_origin, &filter_options);
if (is_local)
clone_local(path, git_dir);
@@ -1245,7 +1252,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
transport_disconnect(transport);
if (option_dissociate) {
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
dissociate_from_references();
}
diff --git a/builtin/column.c b/builtin/column.c
index 5228ccf..e815e14 100644
--- a/builtin/column.c
+++ b/builtin/column.c
@@ -43,7 +43,7 @@ int cmd_column(int argc, const char **argv, const char *prefix)
memset(&copts, 0, sizeof(copts));
copts.padding = 1;
- argc = parse_options(argc, argv, "", options, builtin_column_usage, 0);
+ argc = parse_options(argc, argv, prefix, options, builtin_column_usage, 0);
if (argc)
usage_with_options(builtin_column_usage, options);
if (real_command || command) {
diff --git a/builtin/commit-graph.c b/builtin/commit-graph.c
index 537fdfd..38027b8 100644
--- a/builtin/commit-graph.c
+++ b/builtin/commit-graph.c
@@ -5,17 +5,18 @@
#include "parse-options.h"
#include "repository.h"
#include "commit-graph.h"
+#include "object-store.h"
static char const * const builtin_commit_graph_usage[] = {
N_("git commit-graph [--object-dir <objdir>]"),
N_("git commit-graph read [--object-dir <objdir>]"),
- N_("git commit-graph verify [--object-dir <objdir>]"),
- N_("git commit-graph write [--object-dir <objdir>] [--append] [--reachable|--stdin-packs|--stdin-commits]"),
+ N_("git commit-graph verify [--object-dir <objdir>] [--shallow]"),
+ N_("git commit-graph write [--object-dir <objdir>] [--append|--split] [--reachable|--stdin-packs|--stdin-commits] <split options>"),
NULL
};
static const char * const builtin_commit_graph_verify_usage[] = {
- N_("git commit-graph verify [--object-dir <objdir>]"),
+ N_("git commit-graph verify [--object-dir <objdir>] [--shallow]"),
NULL
};
@@ -25,7 +26,7 @@ static const char * const builtin_commit_graph_read_usage[] = {
};
static const char * const builtin_commit_graph_write_usage[] = {
- N_("git commit-graph write [--object-dir <objdir>] [--append] [--reachable|--stdin-packs|--stdin-commits]"),
+ N_("git commit-graph write [--object-dir <objdir>] [--append|--split] [--reachable|--stdin-packs|--stdin-commits] <split options>"),
NULL
};
@@ -35,9 +36,10 @@ static struct opts_commit_graph {
int stdin_packs;
int stdin_commits;
int append;
+ int split;
+ int shallow;
} opts;
-
static int graph_verify(int argc, const char **argv)
{
struct commit_graph *graph = NULL;
@@ -45,11 +47,14 @@ static int graph_verify(int argc, const char **argv)
int open_ok;
int fd;
struct stat st;
+ int flags = 0;
static struct option builtin_commit_graph_verify_options[] = {
OPT_STRING(0, "object-dir", &opts.obj_dir,
N_("dir"),
N_("The object directory to store the graph")),
+ OPT_BOOL(0, "shallow", &opts.shallow,
+ N_("if the commit-graph is split, only verify the tip file")),
OPT_END(),
};
@@ -59,21 +64,27 @@ static int graph_verify(int argc, const char **argv)
if (!opts.obj_dir)
opts.obj_dir = get_object_directory();
+ if (opts.shallow)
+ flags |= COMMIT_GRAPH_VERIFY_SHALLOW;
graph_name = get_commit_graph_filename(opts.obj_dir);
open_ok = open_commit_graph(graph_name, &fd, &st);
- if (!open_ok && errno == ENOENT)
- return 0;
- if (!open_ok)
+ if (!open_ok && errno != ENOENT)
die_errno(_("Could not open commit-graph '%s'"), graph_name);
- graph = load_commit_graph_one_fd_st(fd, &st);
+
FREE_AND_NULL(graph_name);
+ if (open_ok)
+ graph = load_commit_graph_one_fd_st(fd, &st);
+ else
+ graph = read_commit_graph_one(the_repository, opts.obj_dir);
+
+ /* Return failure if open_ok predicted success */
if (!graph)
- return 1;
+ return !!open_ok;
UNLEAK(graph);
- return verify_commit_graph(the_repository, graph);
+ return verify_commit_graph(the_repository, graph, flags);
}
static int graph_read(int argc, const char **argv)
@@ -135,12 +146,15 @@ static int graph_read(int argc, const char **argv)
}
extern int read_replace_refs;
+static struct split_commit_graph_opts split_opts;
static int graph_write(int argc, const char **argv)
{
struct string_list *pack_indexes = NULL;
struct string_list *commit_hex = NULL;
struct string_list lines;
+ int result = 0;
+ unsigned int flags = COMMIT_GRAPH_PROGRESS;
static struct option builtin_commit_graph_write_options[] = {
OPT_STRING(0, "object-dir", &opts.obj_dir,
@@ -154,9 +168,21 @@ static int graph_write(int argc, const char **argv)
N_("start walk at commits listed by stdin")),
OPT_BOOL(0, "append", &opts.append,
N_("include all commits already in the commit-graph file")),
+ OPT_BOOL(0, "split", &opts.split,
+ N_("allow writing an incremental commit-graph file")),
+ OPT_INTEGER(0, "max-commits", &split_opts.max_commits,
+ N_("maximum number of commits in a non-base split commit-graph")),
+ OPT_INTEGER(0, "size-multiple", &split_opts.size_multiple,
+ N_("maximum ratio between two levels of a split commit-graph")),
+ OPT_EXPIRY_DATE(0, "expire-time", &split_opts.expire_time,
+ N_("maximum number of commits in a non-base split commit-graph")),
OPT_END(),
};
+ split_opts.size_multiple = 2;
+ split_opts.max_commits = 0;
+ split_opts.expire_time = 0;
+
argc = parse_options(argc, argv, NULL,
builtin_commit_graph_write_options,
builtin_commit_graph_write_usage, 0);
@@ -165,11 +191,16 @@ static int graph_write(int argc, const char **argv)
die(_("use at most one of --reachable, --stdin-commits, or --stdin-packs"));
if (!opts.obj_dir)
opts.obj_dir = get_object_directory();
+ if (opts.append)
+ flags |= COMMIT_GRAPH_APPEND;
+ if (opts.split)
+ flags |= COMMIT_GRAPH_SPLIT;
read_replace_refs = 0;
if (opts.reachable) {
- write_commit_graph_reachable(opts.obj_dir, opts.append, 1);
+ if (write_commit_graph_reachable(opts.obj_dir, flags, &split_opts))
+ return 1;
return 0;
}
@@ -188,14 +219,15 @@ static int graph_write(int argc, const char **argv)
UNLEAK(buf);
}
- write_commit_graph(opts.obj_dir,
- pack_indexes,
- commit_hex,
- opts.append,
- 1);
+ if (write_commit_graph(opts.obj_dir,
+ pack_indexes,
+ commit_hex,
+ flags,
+ &split_opts))
+ result = 1;
UNLEAK(lines);
- return 0;
+ return result;
}
int cmd_commit_graph(int argc, const char **argv, const char *prefix)
diff --git a/builtin/commit.c b/builtin/commit.c
index 1c9e8e2..ae7aaf6 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -60,15 +60,18 @@ N_("The previous cherry-pick is now empty, possibly due to conflict resolution.\
"\n");
static const char empty_cherry_pick_advice_single[] =
-N_("Otherwise, please use 'git reset'\n");
+N_("Otherwise, please use 'git cherry-pick --skip'\n");
static const char empty_cherry_pick_advice_multi[] =
-N_("If you wish to skip this commit, use:\n"
+N_("and then use:\n"
"\n"
-" git reset\n"
+" git cherry-pick --continue\n"
"\n"
-"Then \"git cherry-pick --continue\" will resume cherry-picking\n"
-"the remaining commits.\n");
+"to resume cherry-picking the remaining commits.\n"
+"If you wish to skip this commit, use:\n"
+"\n"
+" git cherry-pick --skip\n"
+"\n");
static const char *color_status_slots[] = {
[WT_STATUS_HEADER] = "header",
@@ -1078,9 +1081,11 @@ static const char *read_commit_message(const char *name)
static struct status_deferred_config {
enum wt_status_format status_format;
int show_branch;
+ enum ahead_behind_flags ahead_behind;
} status_deferred_config = {
STATUS_FORMAT_UNSPECIFIED,
- -1 /* unspecified */
+ -1, /* unspecified */
+ AHEAD_BEHIND_UNSPECIFIED,
};
static void finalize_deferred_config(struct wt_status *s)
@@ -1107,6 +1112,17 @@ static void finalize_deferred_config(struct wt_status *s)
if (s->show_branch < 0)
s->show_branch = 0;
+ /*
+ * If the user did not give a "--[no]-ahead-behind" command
+ * line argument *AND* we will print in a human-readable format
+ * (short, long etc.) then we inherit from the status.aheadbehind
+ * config setting. In all other cases (and porcelain V[12] formats
+ * in particular), we inherit _FULL for backwards compatibility.
+ */
+ if (use_deferred_config &&
+ s->ahead_behind_flags == AHEAD_BEHIND_UNSPECIFIED)
+ s->ahead_behind_flags = status_deferred_config.ahead_behind;
+
if (s->ahead_behind_flags == AHEAD_BEHIND_UNSPECIFIED)
s->ahead_behind_flags = AHEAD_BEHIND_FULL;
}
@@ -1246,6 +1262,10 @@ static int git_status_config(const char *k, const char *v, void *cb)
status_deferred_config.show_branch = git_config_bool(k, v);
return 0;
}
+ if (!strcmp(k, "status.aheadbehind")) {
+ status_deferred_config.ahead_behind = git_config_bool(k, v);
+ return 0;
+ }
if (!strcmp(k, "status.showstash")) {
s->show_stash = git_config_bool(k, v);
return 0;
@@ -1658,7 +1678,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
die("%s", err.buf);
}
- sequencer_post_commit_cleanup(the_repository);
+ sequencer_post_commit_cleanup(the_repository, 0);
unlink(git_path_merge_head(the_repository));
unlink(git_path_merge_msg(the_repository));
unlink(git_path_merge_mode(the_repository));
@@ -1667,10 +1687,11 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
if (commit_index_files())
die(_("repository has been updated, but unable to write\n"
"new_index file. Check that disk is not full and quota is\n"
- "not exceeded, and then \"git reset HEAD\" to recover."));
+ "not exceeded, and then \"git restore --staged :/\" to recover."));
- if (git_env_bool(GIT_TEST_COMMIT_GRAPH, 0))
- write_commit_graph_reachable(get_object_directory(), 0, 0);
+ if (git_env_bool(GIT_TEST_COMMIT_GRAPH, 0) &&
+ write_commit_graph_reachable(get_object_directory(), 0, NULL))
+ return 1;
repo_rerere(the_repository, 0);
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
diff --git a/builtin/describe.c b/builtin/describe.c
index 1409ced..2001542 100644
--- a/builtin/describe.c
+++ b/builtin/describe.c
@@ -76,7 +76,7 @@ static int commit_name_neq(const void *unused_cmp_data,
static inline struct commit_name *find_commit_name(const struct object_id *peeled)
{
- return hashmap_get_from_hash(&names, sha1hash(peeled->hash), peeled->hash);
+ return hashmap_get_from_hash(&names, oidhash(peeled), peeled);
}
static int replace_name(struct commit_name *e,
@@ -123,7 +123,7 @@ static void add_to_known_names(const char *path,
if (!e) {
e = xmalloc(sizeof(struct commit_name));
oidcpy(&e->peeled, peeled);
- hashmap_entry_init(e, sha1hash(peeled->hash));
+ hashmap_entry_init(e, oidhash(peeled));
hashmap_add(&names, e);
e->path = NULL;
}
diff --git a/builtin/env--helper.c b/builtin/env--helper.c
new file mode 100644
index 0000000..23c214f
--- /dev/null
+++ b/builtin/env--helper.c
@@ -0,0 +1,95 @@
+#include "builtin.h"
+#include "config.h"
+#include "parse-options.h"
+
+static char const * const env__helper_usage[] = {
+ N_("git env--helper --type=[bool|ulong] <options> <env-var>"),
+ NULL
+};
+
+static enum {
+ ENV_HELPER_TYPE_BOOL = 1,
+ ENV_HELPER_TYPE_ULONG
+} cmdmode = 0;
+
+static int option_parse_type(const struct option *opt, const char *arg,
+ int unset)
+{
+ if (!strcmp(arg, "bool"))
+ cmdmode = ENV_HELPER_TYPE_BOOL;
+ else if (!strcmp(arg, "ulong"))
+ cmdmode = ENV_HELPER_TYPE_ULONG;
+ else
+ die(_("unrecognized --type argument, %s"), arg);
+
+ return 0;
+}
+
+int cmd_env__helper(int argc, const char **argv, const char *prefix)
+{
+ int exit_code = 0;
+ const char *env_variable = NULL;
+ const char *env_default = NULL;
+ int ret;
+ int ret_int, default_int;
+ unsigned long ret_ulong, default_ulong;
+ struct option opts[] = {
+ OPT_CALLBACK_F(0, "type", &cmdmode, N_("type"),
+ N_("value is given this type"), PARSE_OPT_NONEG,
+ option_parse_type),
+ OPT_STRING(0, "default", &env_default, N_("value"),
+ N_("default for git_env_*(...) to fall back on")),
+ OPT_BOOL(0, "exit-code", &exit_code,
+ N_("be quiet only use git_env_*() value as exit code")),
+ OPT_END(),
+ };
+
+ argc = parse_options(argc, argv, prefix, opts, env__helper_usage,
+ PARSE_OPT_KEEP_UNKNOWN);
+ if (env_default && !*env_default)
+ usage_with_options(env__helper_usage, opts);
+ if (!cmdmode)
+ usage_with_options(env__helper_usage, opts);
+ if (argc != 1)
+ usage_with_options(env__helper_usage, opts);
+ env_variable = argv[0];
+
+ switch (cmdmode) {
+ case ENV_HELPER_TYPE_BOOL:
+ if (env_default) {
+ default_int = git_parse_maybe_bool(env_default);
+ if (default_int == -1) {
+ error(_("option `--default' expects a boolean value with `--type=bool`, not `%s`"),
+ env_default);
+ usage_with_options(env__helper_usage, opts);
+ }
+ } else {
+ default_int = 0;
+ }
+ ret_int = git_env_bool(env_variable, default_int);
+ if (!exit_code)
+ puts(ret_int ? "true" : "false");
+ ret = ret_int;
+ break;
+ case ENV_HELPER_TYPE_ULONG:
+ if (env_default) {
+ if (!git_parse_ulong(env_default, &default_ulong)) {
+ error(_("option `--default' expects an unsigned long value with `--type=ulong`, not `%s`"),
+ env_default);
+ usage_with_options(env__helper_usage, opts);
+ }
+ } else {
+ default_ulong = 0;
+ }
+ ret_ulong = git_env_ulong(env_variable, default_ulong);
+ if (!exit_code)
+ printf("%lu\n", ret_ulong);
+ ret = ret_ulong;
+ break;
+ default:
+ BUG("unknown <type> value");
+ break;
+ }
+
+ return !ret;
+}
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index 9e28348..f541f55 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -33,6 +33,7 @@ static const char *fast_export_usage[] = {
static int progress;
static enum { SIGNED_TAG_ABORT, VERBATIM, WARN, WARN_STRIP, STRIP } signed_tag_mode = SIGNED_TAG_ABORT;
static enum { TAG_FILTERING_ABORT, DROP, REWRITE } tag_of_filtered_mode = TAG_FILTERING_ABORT;
+static enum { REENCODE_ABORT, REENCODE_YES, REENCODE_NO } reencode_mode = REENCODE_ABORT;
static int fake_missing_tagger;
static int use_done_feature;
static int no_data;
@@ -77,6 +78,31 @@ static int parse_opt_tag_of_filtered_mode(const struct option *opt,
return 0;
}
+static int parse_opt_reencode_mode(const struct option *opt,
+ const char *arg, int unset)
+{
+ if (unset) {
+ reencode_mode = REENCODE_ABORT;
+ return 0;
+ }
+
+ switch (git_parse_maybe_bool(arg)) {
+ case 0:
+ reencode_mode = REENCODE_NO;
+ break;
+ case 1:
+ reencode_mode = REENCODE_YES;
+ break;
+ default:
+ if (!strcasecmp(arg, "abort"))
+ reencode_mode = REENCODE_ABORT;
+ else
+ return error("Unknown reencoding mode: %s", arg);
+ }
+
+ return 0;
+}
+
static struct decoration idnums;
static uint32_t last_idnum;
@@ -249,7 +275,7 @@ static void export_blob(const struct object_id *oid)
if (is_null_oid(oid))
return;
- object = lookup_object(the_repository, oid->hash);
+ object = lookup_object(the_repository, oid);
if (object && object->flags & SHOWN)
return;
@@ -427,7 +453,7 @@ static void show_filemodify(struct diff_queue_struct *q,
&spec->oid));
else {
struct object *object = lookup_object(the_repository,
- spec->oid.hash);
+ &spec->oid);
printf("M %06o :%d ", spec->mode,
get_object_mark(object));
}
@@ -453,7 +479,7 @@ static const char *find_encoding(const char *begin, const char *end)
bol = memmem(begin, end ? end - begin : strlen(begin),
needle, strlen(needle));
if (!bol)
- return git_commit_encoding;
+ return NULL;
bol += strlen(needle);
eol = strchrnul(bol, '\n');
*eol = '\0';
@@ -633,18 +659,32 @@ static void handle_commit(struct commit *commit, struct rev_info *rev,
}
mark_next_object(&commit->object);
- if (anonymize)
+ if (anonymize) {
reencoded = anonymize_commit_message(message);
- else if (!is_encoding_utf8(encoding))
- reencoded = reencode_string(message, "UTF-8", encoding);
+ } else if (encoding) {
+ switch(reencode_mode) {
+ case REENCODE_YES:
+ reencoded = reencode_string(message, "UTF-8", encoding);
+ break;
+ case REENCODE_NO:
+ break;
+ case REENCODE_ABORT:
+ die("Encountered commit-specific encoding %s in commit "
+ "%s; use --reencode=[yes|no] to handle it",
+ encoding, oid_to_hex(&commit->object.oid));
+ }
+ }
if (!commit->parents)
printf("reset %s\n", refname);
printf("commit %s\nmark :%"PRIu32"\n", refname, last_idnum);
if (show_original_ids)
printf("original-oid %s\n", oid_to_hex(&commit->object.oid));
- printf("%.*s\n%.*s\ndata %u\n%s",
+ printf("%.*s\n%.*s\n",
(int)(author_end - author), author,
- (int)(committer_end - committer), committer,
+ (int)(committer_end - committer), committer);
+ if (!reencoded && encoding)
+ printf("encoding %s\n", encoding);
+ printf("data %u\n%s",
(unsigned)(reencoded
? strlen(reencoded) : message
? strlen(message) : 0),
@@ -1088,6 +1128,9 @@ int cmd_fast_export(int argc, const char **argv, const char *prefix)
OPT_CALLBACK(0, "tag-of-filtered-object", &tag_of_filtered_mode, N_("mode"),
N_("select handling of tags that tag filtered objects"),
parse_opt_tag_of_filtered_mode),
+ OPT_CALLBACK(0, "reencode", &reencode_mode, N_("mode"),
+ N_("select handling of commit messages in an alternate encoding"),
+ parse_opt_reencode_mode),
OPT_STRING(0, "export-marks", &export_filename, N_("file"),
N_("Dump marks to this file")),
OPT_STRING(0, "import-marks", &import_filename, N_("file"),
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 4ba63d5..53ce99d 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -24,6 +24,8 @@
#include "list-objects-filter-options.h"
#include "commit-reach.h"
+#define FORCED_UPDATES_DELAY_WARNING_IN_MS (10 * 1000)
+
static const char * const builtin_fetch_usage[] = {
N_("git fetch [<options>] [<repository> [<refspec>...]]"),
N_("git fetch [<options>] <group>"),
@@ -39,6 +41,8 @@ enum {
};
static int fetch_prune_config = -1; /* unspecified */
+static int fetch_show_forced_updates = 1;
+static uint64_t forced_updates_ms = 0;
static int prune = -1; /* unspecified */
#define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
@@ -48,6 +52,7 @@ static int prune_tags = -1; /* unspecified */
static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity, deepen_relative;
static int progress = -1;
+static int enable_auto_gc = 1;
static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen;
static int max_children = 1;
static enum transport_family family;
@@ -79,6 +84,11 @@ static int git_fetch_config(const char *k, const char *v, void *cb)
return 0;
}
+ if (!strcmp(k, "fetch.showforcedupdates")) {
+ fetch_show_forced_updates = git_config_bool(k, v);
+ return 0;
+ }
+
if (!strcmp(k, "submodule.recurse")) {
int r = git_config_bool(k, v) ?
RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF;
@@ -169,6 +179,10 @@ static struct option builtin_fetch_options[] = {
OPT_STRING_LIST(0, "negotiation-tip", &negotiation_tip, N_("revision"),
N_("report that we have only objects reachable from this object")),
OPT_PARSE_LIST_OBJECTS_FILTER(&filter_options),
+ OPT_BOOL(0, "auto-gc", &enable_auto_gc,
+ N_("run 'gc --auto' after fetching")),
+ OPT_BOOL(0, "show-forced-updates", &fetch_show_forced_updates,
+ N_("check for forced-updates on all updated branches")),
OPT_END()
};
@@ -239,6 +253,7 @@ static int will_fetch(struct ref **head, const unsigned char *sha1)
struct refname_hash_entry {
struct hashmap_entry ent; /* must be the first member */
struct object_id oid;
+ int ignore;
char refname[FLEX_ARRAY];
};
@@ -287,6 +302,11 @@ static int refname_hash_exists(struct hashmap *map, const char *refname)
return !!hashmap_get_from_hash(map, strhash(refname), refname);
}
+static void clear_item(struct refname_hash_entry *item)
+{
+ item->ignore = 1;
+}
+
static void find_non_local_tags(const struct ref *refs,
struct ref **head,
struct ref ***tail)
@@ -319,7 +339,7 @@ static void find_non_local_tags(const struct ref *refs,
!will_fetch(head, ref->old_oid.hash) &&
!has_object_file_with_flags(&item->oid, OBJECT_INFO_QUICK) &&
!will_fetch(head, item->oid.hash))
- oidclr(&item->oid);
+ clear_item(item);
item = NULL;
continue;
}
@@ -333,7 +353,7 @@ static void find_non_local_tags(const struct ref *refs,
if (item &&
!has_object_file_with_flags(&item->oid, OBJECT_INFO_QUICK) &&
!will_fetch(head, item->oid.hash))
- oidclr(&item->oid);
+ clear_item(item);
item = NULL;
@@ -354,7 +374,7 @@ static void find_non_local_tags(const struct ref *refs,
if (item &&
!has_object_file_with_flags(&item->oid, OBJECT_INFO_QUICK) &&
!will_fetch(head, item->oid.hash))
- oidclr(&item->oid);
+ clear_item(item);
/*
* For all the tags in the remote_refs_list,
@@ -362,19 +382,21 @@ static void find_non_local_tags(const struct ref *refs,
*/
for_each_string_list_item(remote_ref_item, &remote_refs_list) {
const char *refname = remote_ref_item->string;
+ struct ref *rm;
item = hashmap_get_from_hash(&remote_refs, strhash(refname), refname);
if (!item)
BUG("unseen remote ref?");
/* Unless we have already decided to ignore this item... */
- if (!is_null_oid(&item->oid)) {
- struct ref *rm = alloc_ref(item->refname);
- rm->peer_ref = alloc_ref(item->refname);
- oidcpy(&rm->old_oid, &item->oid);
- **tail = rm;
- *tail = &rm->next;
- }
+ if (item->ignore)
+ continue;
+
+ rm = alloc_ref(item->refname);
+ rm->peer_ref = alloc_ref(item->refname);
+ oidcpy(&rm->old_oid, &item->oid);
+ **tail = rm;
+ *tail = &rm->next;
}
hashmap_free(&remote_refs, 1);
string_list_clear(&remote_refs_list, 0);
@@ -699,6 +721,7 @@ static int update_local_ref(struct ref *ref,
enum object_type type;
struct branch *current_branch = branch_get(NULL);
const char *pretty_ref = prettify_refname(ref->name);
+ int fast_forward = 0;
type = oid_object_info(the_repository, &ref->new_oid, NULL);
if (type < 0)
@@ -773,9 +796,18 @@ static int update_local_ref(struct ref *ref,
return r;
}
- if (in_merge_bases(current, updated)) {
+ if (fetch_show_forced_updates) {
+ uint64_t t_before = getnanotime();
+ fast_forward = in_merge_bases(current, updated);
+ forced_updates_ms += (getnanotime() - t_before) / 1000000;
+ } else {
+ fast_forward = 1;
+ }
+
+ if (fast_forward) {
struct strbuf quickref = STRBUF_INIT;
int r;
+
strbuf_add_unique_abbrev(&quickref, &current->object.oid, DEFAULT_ABBREV);
strbuf_addstr(&quickref, "..");
strbuf_add_unique_abbrev(&quickref, &ref->new_oid, DEFAULT_ABBREV);
@@ -971,6 +1003,17 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
" 'git remote prune %s' to remove any old, conflicting "
"branches"), remote_name);
+ if (advice_fetch_show_forced_updates) {
+ if (!fetch_show_forced_updates) {
+ warning(_("Fetch normally indicates which branches had a forced update, but that check has been disabled."));
+ warning(_("To re-enable, use '--show-forced-updates' flag or run 'git config fetch.showForcedUpdates true'."));
+ } else if (forced_updates_ms > FORCED_UPDATES_DELAY_WARNING_IN_MS) {
+ warning(_("It took %.2f seconds to check forced updates. You can use '--no-show-forced-updates'\n"),
+ forced_updates_ms / 1000.0);
+ warning(_("or run 'git config fetch.showForcedUpdates false' to avoid this check.\n"));
+ }
+ }
+
abort:
strbuf_release(&note);
free(url);
@@ -1424,7 +1467,7 @@ static int fetch_multiple(struct string_list *list)
return errcode;
}
- argv_array_pushl(&argv, "fetch", "--append", NULL);
+ argv_array_pushl(&argv, "fetch", "--append", "--no-auto-gc", NULL);
add_options_to_argv(&argv);
for (i = 0; i < list->nr; i++) {
@@ -1672,13 +1715,15 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
string_list_clear(&list, 0);
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
- argv_array_pushl(&argv_gc_auto, "gc", "--auto", NULL);
- if (verbosity < 0)
- argv_array_push(&argv_gc_auto, "--quiet");
- run_command_v_opt(argv_gc_auto.argv, RUN_GIT_CMD);
- argv_array_clear(&argv_gc_auto);
+ if (enable_auto_gc) {
+ argv_array_pushl(&argv_gc_auto, "gc", "--auto", NULL);
+ if (verbosity < 0)
+ argv_array_push(&argv_gc_auto, "--quiet");
+ run_command_v_opt(argv_gc_auto.argv, RUN_GIT_CMD);
+ argv_array_clear(&argv_gc_auto);
+ }
return result;
}
diff --git a/builtin/fsck.c b/builtin/fsck.c
index d26fb0a..18403a9 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -238,7 +238,7 @@ static int mark_used(struct object *obj, int type, void *data, struct fsck_optio
static void mark_unreachable_referents(const struct object_id *oid)
{
struct fsck_options options = FSCK_OPTIONS_DEFAULT;
- struct object *obj = lookup_object(the_repository, oid->hash);
+ struct object *obj = lookup_object(the_repository, oid);
if (!obj || !(obj->flags & HAS_OBJ))
return; /* not part of our original set */
@@ -497,7 +497,7 @@ static void fsck_handle_reflog_oid(const char *refname, struct object_id *oid,
struct object *obj;
if (!is_null_oid(oid)) {
- obj = lookup_object(the_repository, oid->hash);
+ obj = lookup_object(the_repository, oid);
if (obj && (obj->flags & HAS_OBJ)) {
if (timestamp && name_objects)
add_decoration(fsck_walk_options.object_names,
@@ -756,7 +756,7 @@ static int fsck_cache_tree(struct cache_tree *it)
static void mark_object_for_connectivity(const struct object_id *oid)
{
- struct object *obj = lookup_unknown_object(oid->hash);
+ struct object *obj = lookup_unknown_object(oid);
obj->flags |= HAS_OBJ;
}
@@ -879,7 +879,7 @@ int cmd_fsck(int argc, const char **argv, const char *prefix)
struct object_id oid;
if (!get_oid(arg, &oid)) {
struct object *obj = lookup_object(the_repository,
- oid.hash);
+ &oid);
if (!obj || !(obj->flags & HAS_OBJ)) {
if (is_promisor_object(&oid))
diff --git a/builtin/gc.c b/builtin/gc.c
index 8943bcc..c18efad 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -653,7 +653,7 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
gc_before_repack();
if (!repository_format_precious_objects) {
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
if (run_command_v_opt(repack.argv, RUN_GIT_CMD))
die(FAILED_RUN, repack.argv[0]);
@@ -681,13 +681,15 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
report_garbage = report_pack_garbage;
reprepare_packed_git(the_repository);
if (pack_garbage.nr > 0) {
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
clean_pack_garbage();
}
- if (gc_write_commit_graph)
- write_commit_graph_reachable(get_object_directory(), 0,
- !quiet && !daemonized);
+ if (gc_write_commit_graph &&
+ write_commit_graph_reachable(get_object_directory(),
+ !quiet && !daemonized ? COMMIT_GRAPH_PROGRESS : 0,
+ NULL))
+ return 1;
if (auto_gc && too_many_loose_objects())
warning(_("There are too many unreachable loose objects; "
diff --git a/builtin/grep.c b/builtin/grep.c
index 580fd38..5600517 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -458,7 +458,8 @@ static int grep_submodule(struct grep_opt *opt,
object = parse_object_or_die(oid, oid_to_hex(oid));
grep_read_lock();
- data = read_object_with_reference(&object->oid, tree_type,
+ data = read_object_with_reference(&subrepo,
+ &object->oid, tree_type,
&size, NULL);
grep_read_unlock();
@@ -623,7 +624,8 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
int hit, len;
grep_read_lock();
- data = read_object_with_reference(&obj->oid, tree_type,
+ data = read_object_with_reference(opt->repo,
+ &obj->oid, tree_type,
&size, NULL);
grep_read_unlock();
diff --git a/builtin/hash-object.c b/builtin/hash-object.c
index e055c11..640ef4d 100644
--- a/builtin/hash-object.c
+++ b/builtin/hash-object.c
@@ -108,7 +108,7 @@ int cmd_hash_object(int argc, const char **argv, const char *prefix)
int i;
const char *errstr = NULL;
- argc = parse_options(argc, argv, NULL, hash_object_options,
+ argc = parse_options(argc, argv, prefix, hash_object_options,
hash_object_usage, 0);
if (flags & HASH_WRITE_OBJECT)
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index ccf4eb7..0d55f73 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -14,6 +14,7 @@
#include "thread-utils.h"
#include "packfile.h"
#include "object-store.h"
+#include "fetch-object.h"
static const char index_pack_usage[] =
"git index-pack [-v] [-o <index-file>] [--keep | --keep=<msg>] [--verify] [--strict] (<pack-file> | --stdin [--fix-thin] [<pack-file>])";
@@ -1351,6 +1352,25 @@ static void fix_unresolved_deltas(struct hashfile *f)
sorted_by_pos[i] = &ref_deltas[i];
QSORT(sorted_by_pos, nr_ref_deltas, delta_pos_compare);
+ if (repository_format_partial_clone) {
+ /*
+ * Prefetch the delta bases.
+ */
+ struct oid_array to_fetch = OID_ARRAY_INIT;
+ for (i = 0; i < nr_ref_deltas; i++) {
+ struct ref_delta_entry *d = sorted_by_pos[i];
+ if (!oid_object_info_extended(the_repository, &d->oid,
+ NULL,
+ OBJECT_INFO_FOR_PREFETCH))
+ continue;
+ oid_array_append(&to_fetch, &d->oid);
+ }
+ if (to_fetch.nr)
+ fetch_objects(repository_format_partial_clone,
+ to_fetch.oid, to_fetch.nr);
+ oid_array_clear(&to_fetch);
+ }
+
for (i = 0; i < nr_ref_deltas; i++) {
struct ref_delta_entry *d = sorted_by_pos[i];
enum object_type type;
@@ -1650,8 +1670,10 @@ int cmd_index_pack(int argc, const char **argv, const char *prefix)
int report_end_of_input = 0;
/*
- * index-pack never needs to fetch missing objects, since it only
- * accesses the repo to do hash collision checks
+ * index-pack never needs to fetch missing objects except when
+ * REF_DELTA bases are missing (which are explicitly handled). It only
+ * accesses the repo to do hash collision checks and to check which
+ * REF_DELTA bases need to be fetched.
*/
fetch_if_missing = 0;
diff --git a/builtin/init-db.c b/builtin/init-db.c
index 6ca0028..944ec77 100644
--- a/builtin/init-db.c
+++ b/builtin/init-db.c
@@ -502,6 +502,9 @@ int cmd_init_db(int argc, const char **argv, const char *prefix)
if (real_git_dir && !is_absolute_path(real_git_dir))
real_git_dir = real_pathdup(real_git_dir, 1);
+ if (template_dir && *template_dir && !is_absolute_path(template_dir))
+ template_dir = absolute_pathdup(template_dir);
+
if (argc == 1) {
int mkdir_tried = 0;
retry:
diff --git a/builtin/interpret-trailers.c b/builtin/interpret-trailers.c
index 8ae40de..f101d09 100644
--- a/builtin/interpret-trailers.c
+++ b/builtin/interpret-trailers.c
@@ -10,6 +10,7 @@
#include "parse-options.h"
#include "string-list.h"
#include "trailer.h"
+#include "config.h"
static const char * const git_interpret_trailers_usage[] = {
N_("git interpret-trailers [--in-place] [--trim-empty] [(--trailer <token>[(=|:)<value>])...] [<file>...]"),
@@ -112,6 +113,8 @@ int cmd_interpret_trailers(int argc, const char **argv, const char *prefix)
OPT_END()
};
+ git_config(git_default_config, NULL);
+
argc = parse_options(argc, argv, prefix, options,
git_interpret_trailers_usage, 0);
diff --git a/builtin/log.c b/builtin/log.c
index e43ee12..7c8767d 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -779,6 +779,8 @@ enum {
static int git_format_config(const char *var, const char *value, void *cb)
{
+ struct rev_info *rev = cb;
+
if (!strcmp(var, "format.headers")) {
if (!value)
die(_("format.headers without value"));
@@ -864,6 +866,22 @@ static int git_format_config(const char *var, const char *value, void *cb)
from = NULL;
return 0;
}
+ if (!strcmp(var, "format.notes")) {
+ struct strbuf buf = STRBUF_INIT;
+ int b = git_parse_maybe_bool(value);
+ if (!b)
+ return 0;
+ rev->show_notes = 1;
+ if (b < 0) {
+ strbuf_addstr(&buf, value);
+ expand_notes_ref(&buf);
+ string_list_append(&rev->notes_opt.extra_notes_refs,
+ strbuf_detach(&buf, NULL));
+ } else {
+ rev->notes_opt.use_default_notes = 1;
+ }
+ return 0;
+ }
return git_log_config(var, value, cb);
}
@@ -1435,7 +1453,7 @@ static void prepare_bases(struct base_tree_info *bases,
struct object_id *patch_id;
if (*commit_base_at(&commit_base, commit))
continue;
- if (commit_patch_id(commit, &diffopt, &oid, 0))
+ if (commit_patch_id(commit, &diffopt, &oid, 0, 1))
die(_("cannot get patch id"));
ALLOC_GROW(bases->patch_id, bases->nr_patch_id + 1, bases->alloc_patch_id);
patch_id = bases->patch_id + bases->nr_patch_id;
@@ -1617,8 +1635,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
extra_to.strdup_strings = 1;
extra_cc.strdup_strings = 1;
init_log_defaults();
- git_config(git_format_config, NULL);
repo_init_revisions(the_repository, &rev, prefix);
+ git_config(git_format_config, &rev);
rev.commit_format = CMIT_FMT_EMAIL;
rev.expand_tabs_in_log_default = 0;
rev.verbose_header = 1;
diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index 7f83c9a..670e8fb 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -373,7 +373,7 @@ static void prune_index(struct index_state *istate,
first = pos;
last = istate->cache_nr;
while (last > first) {
- int next = (last + first) >> 1;
+ int next = first + ((last - first) >> 1);
const struct cache_entry *ce = istate->cache[next];
if (!strncmp(ce->name, prefix, prefixlen)) {
first = next+1;
diff --git a/builtin/merge-tree.c b/builtin/merge-tree.c
index 34ca025..97b54ca 100644
--- a/builtin/merge-tree.c
+++ b/builtin/merge-tree.c
@@ -205,6 +205,7 @@ static void resolve(const struct traverse_info *info, struct name_entry *ours, s
static void unresolved_directory(const struct traverse_info *info,
struct name_entry n[3])
{
+ struct repository *r = the_repository;
char *newbase;
struct name_entry *p;
struct tree_desc t[3];
@@ -220,9 +221,9 @@ static void unresolved_directory(const struct traverse_info *info,
newbase = traverse_path(info, p);
#define ENTRY_OID(e) (((e)->mode && S_ISDIR((e)->mode)) ? &(e)->oid : NULL)
- buf0 = fill_tree_descriptor(t + 0, ENTRY_OID(n + 0));
- buf1 = fill_tree_descriptor(t + 1, ENTRY_OID(n + 1));
- buf2 = fill_tree_descriptor(t + 2, ENTRY_OID(n + 2));
+ buf0 = fill_tree_descriptor(r, t + 0, ENTRY_OID(n + 0));
+ buf1 = fill_tree_descriptor(r, t + 1, ENTRY_OID(n + 1));
+ buf2 = fill_tree_descriptor(r, t + 2, ENTRY_OID(n + 2));
#undef ENTRY_OID
merge_trees(t, newbase);
@@ -351,14 +352,16 @@ static void merge_trees(struct tree_desc t[3], const char *base)
traverse_trees(&the_index, 3, t, &info);
}
-static void *get_tree_descriptor(struct tree_desc *desc, const char *rev)
+static void *get_tree_descriptor(struct repository *r,
+ struct tree_desc *desc,
+ const char *rev)
{
struct object_id oid;
void *buf;
- if (get_oid(rev, &oid))
+ if (repo_get_oid(r, rev, &oid))
die("unknown rev %s", rev);
- buf = fill_tree_descriptor(desc, &oid);
+ buf = fill_tree_descriptor(r, desc, &oid);
if (!buf)
die("%s is not a tree", rev);
return buf;
@@ -366,15 +369,16 @@ static void *get_tree_descriptor(struct tree_desc *desc, const char *rev)
int cmd_merge_tree(int argc, const char **argv, const char *prefix)
{
+ struct repository *r = the_repository;
struct tree_desc t[3];
void *buf1, *buf2, *buf3;
if (argc != 4)
usage(merge_tree_usage);
- buf1 = get_tree_descriptor(t+0, argv[1]);
- buf2 = get_tree_descriptor(t+1, argv[2]);
- buf3 = get_tree_descriptor(t+2, argv[3]);
+ buf1 = get_tree_descriptor(r, t+0, argv[1]);
+ buf2 = get_tree_descriptor(r, t+1, argv[2]);
+ buf3 = get_tree_descriptor(r, t+2, argv[3]);
merge_trees(t, "");
free(buf1);
free(buf2);
diff --git a/builtin/merge.c b/builtin/merge.c
index e96f72a..e2ccbc4 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -37,6 +37,7 @@
#include "packfile.h"
#include "tag.h"
#include "alias.h"
+#include "branch.h"
#include "commit-reach.h"
#include "wt-status.h"
@@ -58,7 +59,7 @@ static const char * const builtin_merge_usage[] = {
};
static int show_diffstat = 1, shortlog_len = -1, squash;
-static int option_commit = 1;
+static int option_commit = -1;
static int option_edit = -1;
static int allow_trivial = 1, have_message, verify_signatures;
static int overwrite_ignore = 1;
@@ -73,6 +74,7 @@ static int option_renormalize;
static int verbosity;
static int allow_rerere_auto;
static int abort_current_merge;
+static int quit_current_merge;
static int continue_current_merge;
static int allow_unrelated_histories;
static int show_progress = -1;
@@ -274,6 +276,8 @@ static struct option builtin_merge_options[] = {
OPT__VERBOSITY(&verbosity),
OPT_BOOL(0, "abort", &abort_current_merge,
N_("abort the current in-progress merge")),
+ OPT_BOOL(0, "quit", &quit_current_merge,
+ N_("--abort but leave index and working tree alone")),
OPT_BOOL(0, "continue", &continue_current_merge,
N_("continue the current in-progress merge")),
OPT_BOOL(0, "allow-unrelated-histories", &allow_unrelated_histories,
@@ -287,14 +291,6 @@ static struct option builtin_merge_options[] = {
OPT_END()
};
-/* Cleans up metadata that is uninteresting after a succeeded merge. */
-static void drop_save(void)
-{
- unlink(git_path_merge_head(the_repository));
- unlink(git_path_merge_msg(the_repository));
- unlink(git_path_merge_mode(the_repository));
-}
-
static int save_state(struct object_id *stash)
{
int len;
@@ -388,7 +384,7 @@ static void finish_up_to_date(const char *msg)
{
if (verbosity >= 0)
printf("%s%s\n", squash ? _(" (nothing to squash)") : "", msg);
- drop_save();
+ remove_merge_branch_state(the_repository);
}
static void squash_message(struct commit *commit, struct commit_list *remoteheads)
@@ -457,7 +453,7 @@ static void finish(struct commit *head_commit,
* We ignore errors in 'gc --auto', since the
* user should see them.
*/
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
}
}
@@ -881,7 +877,7 @@ static int merge_trivial(struct commit *head, struct commit_list *remoteheads)
&result_commit, NULL, sign_commit))
die(_("failed to write commit object"));
finish(head, remoteheads, &result_commit, "In-index merge");
- drop_save();
+ remove_merge_branch_state(the_repository);
return 0;
}
@@ -896,6 +892,7 @@ static int finish_automerge(struct commit *head,
struct strbuf buf = STRBUF_INIT;
struct object_id result_commit;
+ write_tree_trivial(result_tree);
free_commit_list(common);
parents = remoteheads;
if (!head_subsumed || fast_forward == FF_NO)
@@ -907,7 +904,7 @@ static int finish_automerge(struct commit *head,
strbuf_addf(&buf, "Merge made by the '%s' strategy.", wt_strategy);
finish(head, remoteheads, &result_commit, buf.buf);
strbuf_release(&buf);
- drop_save();
+ remove_merge_branch_state(the_repository);
return 0;
}
@@ -1289,6 +1286,16 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
goto done;
}
+ if (quit_current_merge) {
+ if (orig_argc != 2)
+ usage_msg_opt(_("--quit expects no arguments"),
+ builtin_merge_usage,
+ builtin_merge_options);
+
+ remove_merge_branch_state(the_repository);
+ goto done;
+ }
+
if (continue_current_merge) {
int nargc = 1;
const char *nargv[] = {"commit", NULL};
@@ -1339,9 +1346,19 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
if (squash) {
if (fast_forward == FF_NO)
die(_("You cannot combine --squash with --no-ff."));
+ if (option_commit > 0)
+ die(_("You cannot combine --squash with --commit."));
+ /*
+ * squash can now silently disable option_commit - this is not
+ * a problem as it is only overriding the default, not a user
+ * supplied option.
+ */
option_commit = 0;
}
+ if (option_commit < 0)
+ option_commit = 1;
+
if (!argc) {
if (default_to_upstream)
argc = setup_with_upstream(&argv);
@@ -1495,7 +1512,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
}
finish(head_commit, remoteheads, &commit->object.oid, msg.buf);
- drop_save();
+ remove_merge_branch_state(the_repository);
goto done;
} else if (!remoteheads->next && common->next)
;
@@ -1570,8 +1587,8 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
save_state(&stash))
oidclr(&stash);
- for (i = 0; i < use_strategies_nr; i++) {
- int ret;
+ for (i = 0; !merge_was_ok && i < use_strategies_nr; i++) {
+ int ret, cnt;
if (i) {
printf(_("Rewinding the tree to pristine...\n"));
restore_state(&head_commit->object.oid, &stash);
@@ -1588,40 +1605,26 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
ret = try_merge_strategy(use_strategies[i]->name,
common, remoteheads,
head_commit);
- if (!option_commit && !ret) {
- merge_was_ok = 1;
- /*
- * This is necessary here just to avoid writing
- * the tree, but later we will *not* exit with
- * status code 1 because merge_was_ok is set.
- */
- ret = 1;
- }
-
- if (ret) {
- /*
- * The backend exits with 1 when conflicts are
- * left to be resolved, with 2 when it does not
- * handle the given merge at all.
- */
- if (ret == 1) {
- int cnt = evaluate_result();
-
- if (best_cnt <= 0 || cnt <= best_cnt) {
- best_strategy = use_strategies[i]->name;
- best_cnt = cnt;
+ /*
+ * The backend exits with 1 when conflicts are
+ * left to be resolved, with 2 when it does not
+ * handle the given merge at all.
+ */
+ if (ret < 2) {
+ if (!ret) {
+ if (option_commit) {
+ /* Automerge succeeded. */
+ automerge_was_ok = 1;
+ break;
}
+ merge_was_ok = 1;
+ }
+ cnt = evaluate_result();
+ if (best_cnt <= 0 || cnt <= best_cnt) {
+ best_strategy = use_strategies[i]->name;
+ best_cnt = cnt;
}
- if (merge_was_ok)
- break;
- else
- continue;
}
-
- /* Automerge succeeded. */
- write_tree_trivial(&result_tree);
- automerge_was_ok = 1;
- break;
}
/*
diff --git a/builtin/mktree.c b/builtin/mktree.c
index 94e82b8..891991b 100644
--- a/builtin/mktree.c
+++ b/builtin/mktree.c
@@ -67,7 +67,7 @@ static const char *mktree_usage[] = {
NULL
};
-static void mktree_line(char *buf, size_t len, int nul_term_line, int allow_missing)
+static void mktree_line(char *buf, int nul_term_line, int allow_missing)
{
char *ptr, *ntr;
const char *p;
@@ -172,7 +172,7 @@ int cmd_mktree(int ac, const char **av, const char *prefix)
break;
die("input format error: (blank line only valid in batch mode)");
}
- mktree_line(sb.buf, sb.len, nul_term_line, allow_missing);
+ mktree_line(sb.buf, nul_term_line, allow_missing);
}
if (is_batch_mode && got_eof && used < 1) {
/*
diff --git a/builtin/multi-pack-index.c b/builtin/multi-pack-index.c
index 72dfd3d..b1ea1a6 100644
--- a/builtin/multi-pack-index.c
+++ b/builtin/multi-pack-index.c
@@ -6,12 +6,13 @@
#include "trace2.h"
static char const * const builtin_multi_pack_index_usage[] = {
- N_("git multi-pack-index [--object-dir=<dir>] (write|verify)"),
+ N_("git multi-pack-index [--object-dir=<dir>] (write|verify|expire|repack --batch-size=<size>)"),
NULL
};
static struct opts_multi_pack_index {
const char *object_dir;
+ unsigned long batch_size;
} opts;
int cmd_multi_pack_index(int argc, const char **argv,
@@ -20,6 +21,8 @@ int cmd_multi_pack_index(int argc, const char **argv,
static struct option builtin_multi_pack_index_options[] = {
OPT_FILENAME(0, "object-dir", &opts.object_dir,
N_("object directory containing set of packfile and pack-index pairs")),
+ OPT_MAGNITUDE(0, "batch-size", &opts.batch_size,
+ N_("during repack, collect pack-files of smaller size into a batch that is larger than this size")),
OPT_END(),
};
@@ -43,10 +46,17 @@ int cmd_multi_pack_index(int argc, const char **argv,
trace2_cmd_mode(argv[0]);
+ if (!strcmp(argv[0], "repack"))
+ return midx_repack(the_repository, opts.object_dir, (size_t)opts.batch_size);
+ if (opts.batch_size)
+ die(_("--batch-size option is only for 'repack' subcommand"));
+
if (!strcmp(argv[0], "write"))
return write_midx_file(opts.object_dir);
if (!strcmp(argv[0], "verify"))
return verify_midx_file(the_repository, opts.object_dir);
+ if (!strcmp(argv[0], "expire"))
+ return expire_midx_packs(the_repository, opts.object_dir);
- die(_("unrecognized verb: %s"), argv[0]);
+ die(_("unrecognized subcommand: %s"), argv[0]);
}
diff --git a/builtin/name-rev.c b/builtin/name-rev.c
index 05ccf53..c785fe1 100644
--- a/builtin/name-rev.c
+++ b/builtin/name-rev.c
@@ -40,9 +40,7 @@ static void set_commit_rev_name(struct commit *commit, struct rev_name *name)
}
static int is_better_name(struct rev_name *name,
- const char *tip_name,
timestamp_t taggerdate,
- int generation,
int distance,
int from_tag)
{
@@ -103,8 +101,7 @@ static void name_rev(struct commit *commit,
name = xmalloc(sizeof(rev_name));
set_commit_rev_name(commit, name);
goto copy_data;
- } else if (is_better_name(name, tip_name, taggerdate,
- generation, distance, from_tag)) {
+ } else if (is_better_name(name, taggerdate, distance, from_tag)) {
copy_data:
name->tip_name = tip_name;
name->taggerdate = taggerdate;
@@ -381,8 +378,7 @@ static void name_rev_line(char *p, struct name_ref_data *data)
*(p+1) = 0;
if (!get_oid(p - (hexsz - 1), &oid)) {
struct object *o =
- lookup_object(the_repository,
- oid.hash);
+ lookup_object(the_repository, &oid);
if (o)
name = get_rev_name(o, &buf);
}
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 41d7fc5..267c562 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -606,12 +606,12 @@ static int mark_tagged(const char *path, const struct object_id *oid, int flag,
void *cb_data)
{
struct object_id peeled;
- struct object_entry *entry = packlist_find(&to_pack, oid->hash, NULL);
+ struct object_entry *entry = packlist_find(&to_pack, oid, NULL);
if (entry)
entry->tagged = 1;
if (!peel_ref(path, &peeled)) {
- entry = packlist_find(&to_pack, peeled.hash, NULL);
+ entry = packlist_find(&to_pack, &peeled, NULL);
if (entry)
entry->tagged = 1;
}
@@ -996,7 +996,7 @@ static int have_duplicate_entry(const struct object_id *oid,
{
struct object_entry *entry;
- entry = packlist_find(&to_pack, oid->hash, index_pos);
+ entry = packlist_find(&to_pack, oid, index_pos);
if (!entry)
return 0;
@@ -1428,7 +1428,8 @@ static void add_preferred_base(struct object_id *oid)
if (window <= num_preferred_base++)
return;
- data = read_object_with_reference(oid, tree_type, &size, &tree_oid);
+ data = read_object_with_reference(the_repository, oid,
+ tree_type, &size, &tree_oid);
if (!data)
return;
@@ -1494,11 +1495,13 @@ static int can_reuse_delta(const unsigned char *base_sha1,
if (!base_sha1)
return 0;
+ oidread(&base_oid, base_sha1);
+
/*
* First see if we're already sending the base (or it's explicitly in
* our "excluded" list).
*/
- base = packlist_find(&to_pack, base_sha1, NULL);
+ base = packlist_find(&to_pack, &base_oid, NULL);
if (base) {
if (!in_same_island(&delta->idx.oid, &base->idx.oid))
return 0;
@@ -1511,7 +1514,6 @@ static int can_reuse_delta(const unsigned char *base_sha1,
* even if it was buried too deep in history to make it into the
* packing list.
*/
- oidread(&base_oid, base_sha1);
if (thin && bitmap_has_oid_in_uninteresting(bitmap_git, &base_oid)) {
if (use_delta_islands) {
if (!in_same_island(&delta->idx.oid, &base_oid))
@@ -2571,7 +2573,7 @@ static void add_tag_chain(const struct object_id *oid)
* it was included via bitmaps, we would not have parsed it
* previously).
*/
- if (packlist_find(&to_pack, oid->hash, NULL))
+ if (packlist_find(&to_pack, oid, NULL))
return;
tag = lookup_tag(the_repository, oid);
@@ -2595,7 +2597,7 @@ static int add_ref_tag(const char *path, const struct object_id *oid, int flag,
if (starts_with(path, "refs/tags/") && /* is a tag? */
!peel_ref(path, &peeled) && /* peelable? */
- packlist_find(&to_pack, peeled.hash, NULL)) /* object packed? */
+ packlist_find(&to_pack, &peeled, NULL)) /* object packed? */
add_tag_chain(oid);
return 0;
}
@@ -2795,7 +2797,7 @@ static void show_object(struct object *obj, const char *name, void *data)
for (p = strchr(name, '/'); p; p = strchr(p + 1, '/'))
depth++;
- ent = packlist_find(&to_pack, obj->oid.hash, NULL);
+ ent = packlist_find(&to_pack, &obj->oid, NULL);
if (ent && depth > oe_tree_depth(&to_pack, ent))
oe_set_tree_depth(&to_pack, ent, depth);
}
@@ -2899,7 +2901,7 @@ static int ofscmp(const void *a_, const void *b_)
return oidcmp(&a->object->oid, &b->object->oid);
}
-static void add_objects_in_unpacked_packs(struct rev_info *revs)
+static void add_objects_in_unpacked_packs(void)
{
struct packed_git *p;
struct in_pack in_pack;
@@ -2922,7 +2924,7 @@ static void add_objects_in_unpacked_packs(struct rev_info *revs)
for (i = 0; i < p->num_objects; i++) {
nth_packed_object_oid(&oid, p, i);
- o = lookup_unknown_object(oid.hash);
+ o = lookup_unknown_object(&oid);
if (!(o->flags & OBJECT_ADDED))
mark_in_pack_object(o, p, &in_pack);
o->flags |= OBJECT_ADDED;
@@ -3011,7 +3013,7 @@ static int loosened_object_can_be_discarded(const struct object_id *oid,
return 1;
}
-static void loosen_unused_packed_objects(struct rev_info *revs)
+static void loosen_unused_packed_objects(void)
{
struct packed_git *p;
uint32_t i;
@@ -3026,7 +3028,7 @@ static void loosen_unused_packed_objects(struct rev_info *revs)
for (i = 0; i < p->num_objects; i++) {
nth_packed_object_oid(&oid, p, i);
- if (!packlist_find(&to_pack, oid.hash, NULL) &&
+ if (!packlist_find(&to_pack, &oid, NULL) &&
!has_sha1_pack_kept_or_nonlocal(&oid) &&
!loosened_object_can_be_discarded(&oid, p->mtime))
if (force_object_loose(&oid, p->mtime))
@@ -3134,7 +3136,7 @@ static void get_object_list(int ac, const char **av)
return;
if (use_delta_islands)
- load_delta_islands(the_repository);
+ load_delta_islands(the_repository, progress);
if (prepare_revision_walk(&revs))
die(_("revision walk setup failed"));
@@ -3158,11 +3160,11 @@ static void get_object_list(int ac, const char **av)
}
if (keep_unreachable)
- add_objects_in_unpacked_packs(&revs);
+ add_objects_in_unpacked_packs();
if (pack_loose_unreachable)
add_unreachable_loose_objects();
if (unpack_unreachable)
- loosen_unused_packed_objects(&revs);
+ loosen_unused_packed_objects();
oid_array_clear(&recent_objects);
}
diff --git a/builtin/patch-id.c b/builtin/patch-id.c
index 970d0d3..bd28b80 100644
--- a/builtin/patch-id.c
+++ b/builtin/patch-id.c
@@ -1,5 +1,6 @@
#include "builtin.h"
#include "config.h"
+#include "diff.h"
static void flush_current_id(int patchlen, struct object_id *id, struct object_id *result)
{
@@ -54,22 +55,6 @@ static int scan_hunk_header(const char *p, int *p_before, int *p_after)
return 1;
}
-static void flush_one_hunk(struct object_id *result, git_SHA_CTX *ctx)
-{
- unsigned char hash[GIT_MAX_RAWSZ];
- unsigned short carry = 0;
- int i;
-
- git_SHA1_Final(hash, ctx);
- git_SHA1_Init(ctx);
- /* 20-byte sum, with carry */
- for (i = 0; i < GIT_SHA1_RAWSZ; ++i) {
- carry += result->hash[i] + hash[i];
- result->hash[i] = carry;
- carry >>= 8;
- }
-}
-
static int get_one_patchid(struct object_id *next_oid, struct object_id *result,
struct strbuf *line_buf, int stable)
{
diff --git a/builtin/prune.c b/builtin/prune.c
index 97613ec..2b76872 100644
--- a/builtin/prune.c
+++ b/builtin/prune.c
@@ -53,7 +53,7 @@ static int is_object_reachable(const struct object_id *oid,
perform_reachability_traversal(revs);
- obj = lookup_object(the_repository, oid->hash);
+ obj = lookup_object(the_repository, oid);
return obj && (obj->flags & SEEN);
}
diff --git a/builtin/pull.c b/builtin/pull.c
index 9dd32a1..f1eaf6e 100644
--- a/builtin/pull.c
+++ b/builtin/pull.c
@@ -128,6 +128,7 @@ static char *opt_update_shallow;
static char *opt_refmap;
static char *opt_ipv4;
static char *opt_ipv6;
+static int opt_show_forced_updates = -1;
static struct option pull_options[] = {
/* Shared options */
@@ -240,6 +241,8 @@ static struct option pull_options[] = {
OPT_PASSTHRU('6', "ipv6", &opt_ipv6, NULL,
N_("use IPv6 addresses only"),
PARSE_OPT_NOARG),
+ OPT_BOOL(0, "show-forced-updates", &opt_show_forced_updates,
+ N_("check for forced-updates on all updated branches")),
OPT_END()
};
@@ -549,6 +552,10 @@ static int run_fetch(const char *repo, const char **refspecs)
argv_array_push(&args, opt_ipv4);
if (opt_ipv6)
argv_array_push(&args, opt_ipv6);
+ if (opt_show_forced_updates > 0)
+ argv_array_push(&args, "--show-forced-updates");
+ else if (opt_show_forced_updates == 0)
+ argv_array_push(&args, "--no-show-forced-updates");
if (repo) {
argv_array_push(&args, repo);
diff --git a/builtin/range-diff.c b/builtin/range-diff.c
index 784bd19..9202e75 100644
--- a/builtin/range-diff.c
+++ b/builtin/range-diff.c
@@ -32,7 +32,7 @@ int cmd_range_diff(int argc, const char **argv, const char *prefix)
repo_diff_setup(the_repository, &diffopt);
options = parse_options_concat(range_diff_options, diffopt.parseopts);
- argc = parse_options(argc, argv, NULL, options,
+ argc = parse_options(argc, argv, prefix, options,
builtin_range_diff_usage, 0);
diff_setup_done(&diffopt);
diff --git a/builtin/read-tree.c b/builtin/read-tree.c
index 5c9c082..ca5e655 100644
--- a/builtin/read-tree.c
+++ b/builtin/read-tree.c
@@ -111,7 +111,7 @@ static int git_read_tree_config(const char *var, const char *value, void *cb)
return git_default_config(var, value, cb);
}
-int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
+int cmd_read_tree(int argc, const char **argv, const char *cmd_prefix)
{
int i, stage = 0;
struct object_id oid;
@@ -165,7 +165,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
git_config(git_read_tree_config, NULL);
- argc = parse_options(argc, argv, unused_prefix, read_tree_options,
+ argc = parse_options(argc, argv, cmd_prefix, read_tree_options,
read_tree_usage, 0);
hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
diff --git a/builtin/rebase.c b/builtin/rebase.c
index db6ca9b..95d3422 100644
--- a/builtin/rebase.c
+++ b/builtin/rebase.c
@@ -508,7 +508,7 @@ int cmd_rebase__interactive(int argc, const char **argv, const char *prefix)
if (argc == 1)
usage_with_options(builtin_rebase_interactive_usage, options);
- argc = parse_options(argc, argv, NULL, options,
+ argc = parse_options(argc, argv, prefix, options,
builtin_rebase_interactive_usage, PARSE_OPT_KEEP_ARGV0);
if (!is_null_oid(&squash_onto))
@@ -738,20 +738,30 @@ static int finish_rebase(struct rebase_options *opts)
{
struct strbuf dir = STRBUF_INIT;
const char *argv_gc_auto[] = { "gc", "--auto", NULL };
+ int ret = 0;
delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF);
apply_autostash(opts);
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
/*
* We ignore errors in 'gc --auto', since the
* user should see them.
*/
run_command_v_opt(argv_gc_auto, RUN_GIT_CMD);
- strbuf_addstr(&dir, opts->state_dir);
- remove_dir_recursively(&dir, 0);
- strbuf_release(&dir);
+ if (opts->type == REBASE_INTERACTIVE) {
+ struct replay_opts replay = REPLAY_OPTS_INIT;
- return 0;
+ replay.action = REPLAY_INTERACTIVE_REBASE;
+ ret = sequencer_remove_state(&replay);
+ } else {
+ strbuf_addstr(&dir, opts->state_dir);
+ if (remove_dir_recursively(&dir, 0))
+ ret = error(_("could not remove '%s'"),
+ opts->state_dir);
+ strbuf_release(&dir);
+ }
+
+ return ret;
}
static struct commit *peel_committish(const char *name)
@@ -840,13 +850,13 @@ static int reset_head(struct object_id *oid, const char *action,
goto leave_reset_head;
}
- if (!reset_hard && !fill_tree_descriptor(&desc[nr++], &head_oid)) {
+ if (!reset_hard && !fill_tree_descriptor(the_repository, &desc[nr++], &head_oid)) {
ret = error(_("failed to find tree of %s"),
oid_to_hex(&head_oid));
goto leave_reset_head;
}
- if (!fill_tree_descriptor(&desc[nr++], oid)) {
+ if (!fill_tree_descriptor(the_repository, &desc[nr++], oid)) {
ret = error(_("failed to find tree of %s"), oid_to_hex(oid));
goto leave_reset_head;
}
@@ -1153,10 +1163,6 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
}
switch (opts->type) {
- case REBASE_AM:
- backend = "git-rebase--am";
- backend_func = "git_rebase__am";
- break;
case REBASE_PRESERVE_MERGES:
backend = "git-rebase--preserve-merges";
backend_func = "git_rebase__preserve_merges";
@@ -1167,8 +1173,7 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action)
}
strbuf_addf(&script_snippet,
- ". git-sh-setup && . git-rebase--common &&"
- " . %s && %s", backend, backend_func);
+ ". git-sh-setup && . %s && %s", backend, backend_func);
argv[0] = script_snippet.buf;
status = run_command_v_opt(argv, RUN_USING_SHELL);
@@ -1384,6 +1389,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
struct string_list strategy_options = STRING_LIST_INIT_NODUP;
struct object_id squash_onto;
char *squash_onto_name = NULL;
+ int reschedule_failed_exec = -1;
struct option builtin_rebase_options[] = {
OPT_STRING(0, "onto", &options.onto_name,
N_("revision"),
@@ -1476,7 +1482,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
OPT_BOOL(0, "root", &options.root,
N_("rebase all reachable commits up to the root(s)")),
OPT_BOOL(0, "reschedule-failed-exec",
- &options.reschedule_failed_exec,
+ &reschedule_failed_exec,
N_("automatically re-schedule any `exec` that fails")),
OPT_END(),
};
@@ -1605,7 +1611,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
if (reset_head(NULL, "reset", NULL, RESET_HEAD_HARD,
NULL, NULL) < 0)
die(_("could not discard worktree changes"));
- remove_branch_state(the_repository);
+ remove_branch_state(the_repository, 0);
if (read_basic_state(&options))
exit(1);
goto run_rebase;
@@ -1625,16 +1631,24 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
NULL, NULL) < 0)
die(_("could not move back to %s"),
oid_to_hex(&options.orig_head));
- remove_branch_state(the_repository);
- ret = finish_rebase(&options);
+ remove_branch_state(the_repository, 0);
+ ret = !!finish_rebase(&options);
goto cleanup;
}
case ACTION_QUIT: {
- strbuf_reset(&buf);
- strbuf_addstr(&buf, options.state_dir);
- ret = !!remove_dir_recursively(&buf, 0);
- if (ret)
- die(_("could not remove '%s'"), options.state_dir);
+ if (options.type == REBASE_INTERACTIVE) {
+ struct replay_opts replay = REPLAY_OPTS_INIT;
+
+ replay.action = REPLAY_INTERACTIVE_REBASE;
+ ret = !!sequencer_remove_state(&replay);
+ } else {
+ strbuf_reset(&buf);
+ strbuf_addstr(&buf, options.state_dir);
+ ret = !!remove_dir_recursively(&buf, 0);
+ if (ret)
+ error(_("could not remove '%s'"),
+ options.state_dir);
+ }
goto cleanup;
}
case ACTION_EDIT_TODO:
@@ -1783,8 +1797,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
break;
}
- if (options.reschedule_failed_exec && !is_interactive(&options))
- die(_("%s requires an interactive rebase"), "--reschedule-failed-exec");
+ if (reschedule_failed_exec > 0 && !is_interactive(&options))
+ die(_("--reschedule-failed-exec requires "
+ "--exec or --interactive"));
+ if (reschedule_failed_exec >= 0)
+ options.reschedule_failed_exec = reschedule_failed_exec;
if (options.git_am_opts.argc) {
/* all am options except -q are compatible only with --am */
@@ -2146,6 +2163,7 @@ run_rebase:
ret = !!run_specific_rebase(&options, action);
cleanup:
+ strbuf_release(&buf);
strbuf_release(&revisions);
free(options.head_name);
free(options.gpg_sign_opt);
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index 29f165d..dcf3855 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -12,7 +12,6 @@
#include "object.h"
#include "remote.h"
#include "connect.h"
-#include "transport.h"
#include "string-list.h"
#include "sha1-array.h"
#include "connected.h"
@@ -1809,8 +1808,7 @@ static const char *unpack_with_sideband(struct shallow_info *si)
return ret;
}
-static void prepare_shallow_update(struct command *commands,
- struct shallow_info *si)
+static void prepare_shallow_update(struct shallow_info *si)
{
int i, j, k, bitmap_size = DIV_ROUND_UP(si->ref->nr, 32);
@@ -1876,7 +1874,7 @@ static void update_shallow_info(struct command *commands,
si->ref = ref;
if (shallow_update) {
- prepare_shallow_update(commands, si);
+ prepare_shallow_update(si);
return;
}
@@ -2043,7 +2041,7 @@ int cmd_receive_pack(int argc, const char **argv, const char *prefix)
proc.git_cmd = 1;
proc.argv = argv_gc_auto;
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
if (!start_command(&proc)) {
if (use_sideband)
copy_to_sideband(proc.err, -1, NULL);
diff --git a/builtin/remote.c b/builtin/remote.c
index f7edf7f..5591cef 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -1407,7 +1407,7 @@ static int update(int argc, const char **argv)
return retval;
}
-static int remove_all_fetch_refspecs(const char *remote, const char *key)
+static int remove_all_fetch_refspecs(const char *key)
{
return git_config_set_multivar_gently(key, NULL, NULL, 1);
}
@@ -1437,7 +1437,7 @@ static int set_remote_branches(const char *remotename, const char **branches,
if (!remote_is_configured(remote, 1))
die(_("No such remote '%s'"), remotename);
- if (!add_mode && remove_all_fetch_refspecs(remotename, key.buf)) {
+ if (!add_mode && remove_all_fetch_refspecs(key.buf)) {
strbuf_release(&key);
return 1;
}
diff --git a/builtin/repack.c b/builtin/repack.c
index caca113..30982ed 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c
@@ -89,6 +89,17 @@ static void remove_pack_on_signal(int signo)
raise(signo);
}
+static int has_pack_keep_file(void)
+{
+ struct packed_git *p;
+
+ for (p = get_all_packs(the_repository); p; p = p->next) {
+ if (p->pack_keep)
+ return 1;
+ }
+ return 0;
+}
+
/*
* Adds all packs hex strings to the fname list, which do not
* have a corresponding .keep file. These packs are not to
@@ -129,19 +140,9 @@ static void get_non_kept_pack_filenames(struct string_list *fname_list,
static void remove_redundant_pack(const char *dir_name, const char *base_name)
{
- const char *exts[] = {".pack", ".idx", ".keep", ".bitmap", ".promisor"};
- int i;
struct strbuf buf = STRBUF_INIT;
- size_t plen;
-
- strbuf_addf(&buf, "%s/%s", dir_name, base_name);
- plen = buf.len;
-
- for (i = 0; i < ARRAY_SIZE(exts); i++) {
- strbuf_setlen(&buf, plen);
- strbuf_addstr(&buf, exts[i]);
- unlink(buf.buf);
- }
+ strbuf_addf(&buf, "%s/%s.pack", dir_name, base_name);
+ unlink_pack_path(buf.buf, 1);
strbuf_release(&buf);
}
@@ -343,9 +344,12 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
(unpack_unreachable || (pack_everything & LOOSEN_UNREACHABLE)))
die(_("--keep-unreachable and -A are incompatible"));
- if (write_bitmaps < 0)
+ if (write_bitmaps < 0) {
write_bitmaps = (pack_everything & ALL_INTO_ONE) &&
- is_bare_repository();
+ is_bare_repository() &&
+ keep_pack_list.nr == 0 &&
+ !has_pack_keep_file();
+ }
if (pack_kept_objects < 0)
pack_kept_objects = write_bitmaps;
@@ -422,7 +426,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix)
if (!names.nr && !po_args.quiet)
printf_ln(_("Nothing new to pack."));
- close_all_packs(the_repository->objects);
+ close_object_store(the_repository->objects);
/*
* Ok we have prepared all new packfiles.
diff --git a/builtin/reset.c b/builtin/reset.c
index 26ef9a7..fdd5721 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -79,13 +79,13 @@ static int reset_index(const struct object_id *oid, int reset_type, int quiet)
struct object_id head_oid;
if (get_oid("HEAD", &head_oid))
return error(_("You do not have a valid HEAD."));
- if (!fill_tree_descriptor(desc + nr, &head_oid))
+ if (!fill_tree_descriptor(the_repository, desc + nr, &head_oid))
return error(_("Failed to find tree of HEAD."));
nr++;
opts.fn = twoway_merge;
}
- if (!fill_tree_descriptor(desc + nr, oid)) {
+ if (!fill_tree_descriptor(the_repository, desc + nr, oid)) {
error(_("Failed to find tree of %s."), oid_to_hex(oid));
goto out;
}
@@ -421,7 +421,7 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
print_new_head_line(lookup_commit_reference(the_repository, &oid));
}
if (!pathspec.nr)
- remove_branch_state(the_repository);
+ remove_branch_state(the_repository, 0);
return update_ref_status;
}
diff --git a/builtin/rev-list.c b/builtin/rev-list.c
index 9f31837..301ccb9 100644
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@ -49,6 +49,7 @@ static const char rev_list_usage[] =
" --objects | --objects-edge\n"
" --unpacked\n"
" --header | --pretty\n"
+" --[no-]object-names\n"
" --abbrev=<n> | --no-abbrev\n"
" --abbrev-commit\n"
" --left-right\n"
@@ -75,9 +76,12 @@ enum missing_action {
};
static enum missing_action arg_missing_action;
+/* display only the oid of each object encountered */
+static int arg_show_object_names = 1;
+
#define DEFAULT_OIDSET_SIZE (16*1024)
-static void finish_commit(struct commit *commit, void *data);
+static void finish_commit(struct commit *commit);
static void show_commit(struct commit *commit, void *data)
{
struct rev_list_info *info = data;
@@ -86,7 +90,7 @@ static void show_commit(struct commit *commit, void *data)
display_progress(progress, ++progress_counter);
if (info->flags & REV_LIST_QUIET) {
- finish_commit(commit, data);
+ finish_commit(commit);
return;
}
@@ -99,7 +103,7 @@ static void show_commit(struct commit *commit, void *data)
revs->count_left++;
else
revs->count_right++;
- finish_commit(commit, data);
+ finish_commit(commit);
return;
}
@@ -188,10 +192,10 @@ static void show_commit(struct commit *commit, void *data)
putchar('\n');
}
maybe_flush_or_die(stdout, "stdout");
- finish_commit(commit, data);
+ finish_commit(commit);
}
-static void finish_commit(struct commit *commit, void *data)
+static void finish_commit(struct commit *commit)
{
if (commit->parents) {
free_commit_list(commit->parents);
@@ -255,7 +259,10 @@ static void show_object(struct object *obj, const char *name, void *cb_data)
display_progress(progress, ++progress_counter);
if (info->flags & REV_LIST_QUIET)
return;
- show_object_with_name(stdout, obj, name);
+ if (arg_show_object_names)
+ show_object_with_name(stdout, obj, name);
+ else
+ printf("%s\n", oid_to_hex(&obj->oid));
}
static void show_edge(struct commit *commit)
@@ -484,6 +491,16 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
if (skip_prefix(arg, "--missing=", &arg))
continue; /* already handled above */
+ if (!strcmp(arg, ("--no-object-names"))) {
+ arg_show_object_names = 0;
+ continue;
+ }
+
+ if (!strcmp(arg, ("--object-names"))) {
+ arg_show_object_names = 1;
+ continue;
+ }
+
usage(rev_list_usage);
}
diff --git a/builtin/revert.c b/builtin/revert.c
index d4dcedb..f61cc5d 100644
--- a/builtin/revert.c
+++ b/builtin/revert.c
@@ -102,6 +102,7 @@ static int run_sequencer(int argc, const char **argv, struct replay_opts *opts)
OPT_CMDMODE(0, "quit", &cmd, N_("end revert or cherry-pick sequence"), 'q'),
OPT_CMDMODE(0, "continue", &cmd, N_("resume revert or cherry-pick sequence"), 'c'),
OPT_CMDMODE(0, "abort", &cmd, N_("cancel revert or cherry-pick sequence"), 'a'),
+ OPT_CMDMODE(0, "skip", &cmd, N_("skip current commit and continue"), 's'),
OPT_CLEANUP(&cleanup_arg),
OPT_BOOL('n', "no-commit", &opts->no_commit, N_("don't automatically commit")),
OPT_BOOL('e', "edit", &opts->edit, N_("edit the commit message")),
@@ -151,6 +152,8 @@ static int run_sequencer(int argc, const char **argv, struct replay_opts *opts)
this_operation = "--quit";
else if (cmd == 'c')
this_operation = "--continue";
+ else if (cmd == 's')
+ this_operation = "--skip";
else {
assert(cmd == 'a');
this_operation = "--abort";
@@ -203,13 +206,15 @@ static int run_sequencer(int argc, const char **argv, struct replay_opts *opts)
if (cmd == 'q') {
int ret = sequencer_remove_state(opts);
if (!ret)
- remove_branch_state(the_repository);
+ remove_branch_state(the_repository, 0);
return ret;
}
if (cmd == 'c')
return sequencer_continue(the_repository, opts);
if (cmd == 'a')
return sequencer_rollback(the_repository, opts);
+ if (cmd == 's')
+ return sequencer_skip(the_repository, opts);
return sequencer_pick_revisions(the_repository, opts);
}
diff --git a/builtin/rm.c b/builtin/rm.c
index 90cbe89..2eacda4 100644
--- a/builtin/rm.c
+++ b/builtin/rm.c
@@ -61,7 +61,7 @@ static void print_error_files(struct string_list *files_list,
}
}
-static void submodules_absorb_gitdir_if_needed(const char *prefix)
+static void submodules_absorb_gitdir_if_needed(void)
{
int i;
for (i = 0; i < list.nr; i++) {
@@ -83,7 +83,7 @@ static void submodules_absorb_gitdir_if_needed(const char *prefix)
continue;
if (!submodule_uses_gitfile(name))
- absorb_git_dir_into_superproject(prefix, name,
+ absorb_git_dir_into_superproject(name,
ABSORB_GITDIR_RECURSE_SUBMODULES);
}
}
@@ -179,7 +179,7 @@ static int check_local_mod(struct object_id *head, int index_only)
* way as changed from the HEAD.
*/
if (no_head
- || get_tree_entry(head, name, &oid, &mode)
+ || get_tree_entry(the_repository, head, name, &oid, &mode)
|| ce->ce_mode != create_ce_mode(mode)
|| !oideq(&ce->oid, &oid))
staged_changes = 1;
@@ -313,7 +313,7 @@ int cmd_rm(int argc, const char **argv, const char *prefix)
}
if (!index_only)
- submodules_absorb_gitdir_if_needed(prefix);
+ submodules_absorb_gitdir_if_needed();
/*
* If not forced, the file, the index and the HEAD (if exists)
diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index 082daea..35d7f51 100644
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -514,7 +514,6 @@ static int show_merge_base(struct commit_list *seen, int num_rev)
static int show_independent(struct commit **rev,
int num_rev,
- char **ref_name,
unsigned int *rev_mask)
{
int i;
@@ -862,7 +861,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
return show_merge_base(seen, num_rev);
if (independent)
- return show_independent(rev, num_rev, ref_name, rev_mask);
+ return show_independent(rev, num_rev, rev_mask);
/* Show list; --more=-1 means list-only */
if (1 < num_rev || extra < 0) {
diff --git a/builtin/stash.c b/builtin/stash.c
index 2a8e6d0..fde6397 100644
--- a/builtin/stash.c
+++ b/builtin/stash.c
@@ -713,11 +713,11 @@ static int git_stash_config(const char *var, const char *value, void *cb)
static int show_stash(int argc, const char **argv, const char *prefix)
{
int i;
- int opts = 0;
int ret = 0;
struct stash_info info;
struct rev_info rev;
struct argv_array stash_args = ARGV_ARRAY_INIT;
+ struct argv_array revision_args = ARGV_ARRAY_INIT;
struct option options[] = {
OPT_END()
};
@@ -726,11 +726,12 @@ static int show_stash(int argc, const char **argv, const char *prefix)
git_config(git_diff_ui_config, NULL);
init_revisions(&rev, prefix);
+ argv_array_push(&revision_args, argv[0]);
for (i = 1; i < argc; i++) {
if (argv[i][0] != '-')
argv_array_push(&stash_args, argv[i]);
else
- opts++;
+ argv_array_push(&revision_args, argv[i]);
}
ret = get_stash_info(&info, stash_args.argc, stash_args.argv);
@@ -742,7 +743,7 @@ static int show_stash(int argc, const char **argv, const char *prefix)
* The config settings are applied only if there are not passed
* any options.
*/
- if (!opts) {
+ if (revision_args.argc == 1) {
git_config(git_stash_config, NULL);
if (show_stat)
rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT;
@@ -756,7 +757,7 @@ static int show_stash(int argc, const char **argv, const char *prefix)
}
}
- argc = setup_revisions(argc, argv, &rev, NULL);
+ argc = setup_revisions(revision_args.argc, revision_args.argv, &rev, NULL);
if (argc > 1) {
free_stash_info(&info);
usage_with_options(git_stash_show_usage, options);
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 0bf4aa0..909e77e 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -540,6 +540,7 @@ static void runcommand_in_submodule_cb(const struct cache_entry *list_item,
if (info->quiet)
argv_array_push(&cpr.args, "--quiet");
+ argv_array_push(&cpr.args, "--");
argv_array_pushv(&cpr.args, info->argv);
if (run_command(&cpr))
@@ -2107,8 +2108,7 @@ static int absorb_git_dirs(int argc, const char **argv, const char *prefix)
return 1;
for (i = 0; i < list.nr; i++)
- absorb_git_dir_into_superproject(prefix,
- list.entries[i]->name, flags);
+ absorb_git_dir_into_superproject(list.entries[i]->name, flags);
return 0;
}
diff --git a/builtin/tag.c b/builtin/tag.c
index ef37dcc..e0a4c25 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -33,6 +33,7 @@ static const char * const git_tag_usage[] = {
static unsigned int colopts;
static int force_sign_annotate;
+static int config_sign_tag = -1; /* unspecified */
static int list_tags(struct ref_filter *filter, struct ref_sorting *sorting,
struct ref_format *format)
@@ -144,6 +145,11 @@ static int git_tag_config(const char *var, const char *value, void *cb)
int status;
struct ref_sorting **sorting_tail = (struct ref_sorting **)cb;
+ if (!strcmp(var, "tag.gpgsign")) {
+ config_sign_tag = git_config_bool(var, value);
+ return 0;
+ }
+
if (!strcmp(var, "tag.sort")) {
if (!value)
return config_error_nonbool(var);
@@ -442,15 +448,10 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
memset(&opt, 0, sizeof(opt));
memset(&filter, 0, sizeof(filter));
filter.lines = -1;
+ opt.sign = -1;
argc = parse_options(argc, argv, prefix, options, git_tag_usage, 0);
- if (keyid) {
- opt.sign = 1;
- set_signing_key(keyid);
- }
- create_tag_object = (opt.sign || annotate || msg.given || msgfile);
-
if (!cmdmode) {
if (argc == 0)
cmdmode = 'l';
@@ -463,6 +464,15 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
if (cmdmode == 'l')
setup_auto_pager("tag", 1);
+ if (opt.sign == -1)
+ opt.sign = cmdmode ? 0 : config_sign_tag > 0;
+
+ if (keyid) {
+ opt.sign = 1;
+ set_signing_key(keyid);
+ }
+ create_tag_object = (opt.sign || annotate || msg.given || msgfile);
+
if ((create_tag_object || force) && (cmdmode != 0))
usage_with_options(git_tag_usage, options);
diff --git a/builtin/unpack-objects.c b/builtin/unpack-objects.c
index 8047880..a87a4bf 100644
--- a/builtin/unpack-objects.c
+++ b/builtin/unpack-objects.c
@@ -332,7 +332,7 @@ static int resolve_against_held(unsigned nr, const struct object_id *base,
{
struct object *obj;
struct obj_buffer *obj_buffer;
- obj = lookup_object(the_repository, base->hash);
+ obj = lookup_object(the_repository, base);
if (!obj)
return 0;
obj_buffer = lookup_object_buffer(obj);
diff --git a/builtin/update-index.c b/builtin/update-index.c
index 27db092..dff2f4b 100644
--- a/builtin/update-index.c
+++ b/builtin/update-index.c
@@ -280,7 +280,7 @@ static int add_one_path(const struct cache_entry *old, const char *path, int len
memcpy(ce->name, path, len);
ce->ce_flags = create_ce_flags(0);
ce->ce_namelen = len;
- fill_stat_cache_info(ce, st);
+ fill_stat_cache_info(&the_index, ce, st);
ce->ce_mode = ce_mode_from_stat(old, st->st_mode);
if (index_path(&the_index, &ce->oid, path, st,
@@ -601,7 +601,7 @@ static struct cache_entry *read_one_ent(const char *which,
struct object_id oid;
struct cache_entry *ce;
- if (get_tree_entry(ent, path, &oid, &mode)) {
+ if (get_tree_entry(the_repository, ent, path, &oid, &mode)) {
if (which)
error("%s: not in %s branch.", path, which);
return NULL;
diff --git a/builtin/upload-pack.c b/builtin/upload-pack.c
index 42dc4da..6da8fa2 100644
--- a/builtin/upload-pack.c
+++ b/builtin/upload-pack.c
@@ -33,7 +33,7 @@ int cmd_upload_pack(int argc, const char **argv, const char *prefix)
packet_trace_identity("upload-pack");
read_replace_refs = 0;
- argc = parse_options(argc, argv, NULL, options, upload_pack_usage, 0);
+ argc = parse_options(argc, argv, prefix, options, upload_pack_usage, 0);
if (argc != 1)
usage_with_options(upload_pack_usage, options);
diff --git a/builtin/verify-commit.c b/builtin/verify-commit.c
index 7772c07..4b9e823 100644
--- a/builtin/verify-commit.c
+++ b/builtin/verify-commit.c
@@ -21,15 +21,14 @@ static const char * const verify_commit_usage[] = {
NULL
};
-static int run_gpg_verify(const struct object_id *oid, const char *buf, unsigned long size, unsigned flags)
+static int run_gpg_verify(struct commit *commit, unsigned flags)
{
struct signature_check signature_check;
int ret;
memset(&signature_check, 0, sizeof(signature_check));
- ret = check_commit_signature(lookup_commit(the_repository, oid),
- &signature_check);
+ ret = check_commit_signature(commit, &signature_check);
print_signature_buffer(&signature_check, flags);
signature_check_clear(&signature_check);
@@ -38,26 +37,20 @@ static int run_gpg_verify(const struct object_id *oid, const char *buf, unsigned
static int verify_commit(const char *name, unsigned flags)
{
- enum object_type type;
struct object_id oid;
- char *buf;
- unsigned long size;
- int ret;
+ struct object *obj;
if (get_oid(name, &oid))
return error("commit '%s' not found.", name);
- buf = read_object_file(&oid, &type, &size);
- if (!buf)
+ obj = parse_object(the_repository, &oid);
+ if (!obj)
return error("%s: unable to read file.", name);
- if (type != OBJ_COMMIT)
+ if (obj->type != OBJ_COMMIT)
return error("%s: cannot verify a non-commit object of type %s.",
- name, type_name(type));
-
- ret = run_gpg_verify(&oid, buf, size, flags);
+ name, type_name(obj->type));
- free(buf);
- return ret;
+ return run_gpg_verify((struct commit *)obj, flags);
}
static int git_verify_commit_config(const char *var, const char *value, void *cb)
diff --git a/builtin/worktree.c b/builtin/worktree.c
index d2a7e2f..a5bb02b 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -275,6 +275,7 @@ static int add_worktree(const char *path, const char *refname,
struct strbuf symref = STRBUF_INIT;
struct commit *commit = NULL;
int is_branch = 0;
+ struct strbuf sb_name = STRBUF_INIT;
validate_worktree_add(path, opts);
@@ -290,7 +291,13 @@ static int add_worktree(const char *path, const char *refname,
die(_("invalid reference: %s"), refname);
name = worktree_basename(path, &len);
- git_path_buf(&sb_repo, "worktrees/%.*s", (int)(path + len - name), name);
+ strbuf_add(&sb, name, path + len - name);
+ sanitize_refname_component(sb.buf, &sb_name);
+ if (!sb_name.len)
+ BUG("How come '%s' becomes empty after sanitization?", sb.buf);
+ strbuf_reset(&sb);
+ name = sb_name.buf;
+ git_path_buf(&sb_repo, "worktrees/%s", name);
len = sb_repo.len;
if (safe_create_leading_directories_const(sb_repo.buf))
die_errno(_("could not create leading directories of '%s'"),
@@ -418,6 +425,7 @@ done:
strbuf_release(&symref);
strbuf_release(&sb_repo);
strbuf_release(&sb_git);
+ strbuf_release(&sb_name);
return ret;
}
diff --git a/builtin/write-tree.c b/builtin/write-tree.c
index 3d46d22..45d6170 100644
--- a/builtin/write-tree.c
+++ b/builtin/write-tree.c
@@ -16,16 +16,16 @@ static const char * const write_tree_usage[] = {
NULL
};
-int cmd_write_tree(int argc, const char **argv, const char *unused_prefix)
+int cmd_write_tree(int argc, const char **argv, const char *cmd_prefix)
{
int flags = 0, ret;
- const char *prefix = NULL;
+ const char *tree_prefix = NULL;
struct object_id oid;
const char *me = "git-write-tree";
struct option write_tree_options[] = {
OPT_BIT(0, "missing-ok", &flags, N_("allow missing objects"),
WRITE_TREE_MISSING_OK),
- OPT_STRING(0, "prefix", &prefix, N_("<prefix>/"),
+ OPT_STRING(0, "prefix", &tree_prefix, N_("<prefix>/"),
N_("write tree object for a subdirectory <prefix>")),
{ OPTION_BIT, 0, "ignore-cache-tree", &flags, NULL,
N_("only useful for debugging"),
@@ -35,10 +35,10 @@ int cmd_write_tree(int argc, const char **argv, const char *unused_prefix)
};
git_config(git_default_config, NULL);
- argc = parse_options(argc, argv, unused_prefix, write_tree_options,
+ argc = parse_options(argc, argv, cmd_prefix, write_tree_options,
write_tree_usage, 0);
- ret = write_cache_as_tree(&oid, flags, prefix);
+ ret = write_cache_as_tree(&oid, flags, tree_prefix);
switch (ret) {
case 0:
printf("%s\n", oid_to_hex(&oid));
@@ -50,7 +50,7 @@ int cmd_write_tree(int argc, const char **argv, const char *unused_prefix)
die("%s: error building trees", me);
break;
case WRITE_TREE_PREFIX_ERROR:
- die("%s: prefix %s not found", me, prefix);
+ die("%s: prefix %s not found", me, tree_prefix);
break;
}
return ret;
diff --git a/bundle.c b/bundle.c
index b45666c..b5d21cd 100644
--- a/bundle.c
+++ b/bundle.c
@@ -142,6 +142,9 @@ int verify_bundle(struct repository *r,
int i, ret = 0, req_nr;
const char *message = _("Repository lacks these prerequisite commits:");
+ if (!r || !r->objects || !r->objects->odb)
+ return error(_("need a repository to verify a bundle"));
+
repo_init_revisions(r, &revs, NULL);
for (i = 0; i < p->nr; i++) {
struct ref_list_entry *e = p->list + i;
diff --git a/cache-tree.c b/cache-tree.c
index b13bfaf..706ffcf 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -6,8 +6,8 @@
#include "object-store.h"
#include "replace-object.h"
-#ifndef DEBUG
-#define DEBUG 0
+#ifndef DEBUG_CACHE_TREE
+#define DEBUG_CACHE_TREE 0
#endif
struct cache_tree *cache_tree(void)
@@ -111,7 +111,7 @@ static int do_invalidate_path(struct cache_tree *it, const char *path)
int namelen;
struct cache_tree_sub *down;
-#if DEBUG
+#if DEBUG_CACHE_TREE
fprintf(stderr, "cache-tree invalidate <%s>\n", path);
#endif
@@ -398,7 +398,7 @@ static int update_one(struct cache_tree *it,
strbuf_addf(&buffer, "%o %.*s%c", mode, entlen, path + baselen, '\0');
strbuf_add(&buffer, oid->hash, the_hash_algo->rawsz);
-#if DEBUG
+#if DEBUG_CACHE_TREE
fprintf(stderr, "cache-tree update-one %o %.*s\n",
mode, entlen, path + baselen);
#endif
@@ -421,7 +421,7 @@ static int update_one(struct cache_tree *it,
strbuf_release(&buffer);
it->entry_count = to_invalidate ? -1 : i - *skip_count;
-#if DEBUG
+#if DEBUG_CACHE_TREE
fprintf(stderr, "cache-tree update-one (%d ent, %d subtree) %s\n",
it->entry_count, it->subtree_nr,
oid_to_hex(&it->oid));
@@ -462,7 +462,7 @@ static void write_one(struct strbuf *buffer, struct cache_tree *it,
strbuf_add(buffer, path, pathlen);
strbuf_addf(buffer, "%c%d %d\n", 0, it->entry_count, it->subtree_nr);
-#if DEBUG
+#if DEBUG_CACHE_TREE
if (0 <= it->entry_count)
fprintf(stderr, "cache-tree <%.*s> (%d ent, %d subtree) %s\n",
pathlen, path, it->entry_count, it->subtree_nr,
@@ -536,7 +536,7 @@ static struct cache_tree *read_one(const char **buffer, unsigned long *size_p)
size -= rawsz;
}
-#if DEBUG
+#if DEBUG_CACHE_TREE
if (0 <= it->entry_count)
fprintf(stderr, "cache-tree <%s> (%d ent, %d subtree) %s\n",
*buffer, it->entry_count, subtree_nr,
diff --git a/cache.h b/cache.h
index b4bb2e2..b1da1ab 100644
--- a/cache.h
+++ b/cache.h
@@ -43,30 +43,6 @@ int git_deflate_end_gently(git_zstream *);
int git_deflate(git_zstream *, int flush);
unsigned long git_deflate_bound(git_zstream *, unsigned long);
-/* The length in bytes and in hex digits of an object name (SHA-1 value). */
-#define GIT_SHA1_RAWSZ 20
-#define GIT_SHA1_HEXSZ (2 * GIT_SHA1_RAWSZ)
-/* The block size of SHA-1. */
-#define GIT_SHA1_BLKSZ 64
-
-/* The length in bytes and in hex digits of an object name (SHA-256 value). */
-#define GIT_SHA256_RAWSZ 32
-#define GIT_SHA256_HEXSZ (2 * GIT_SHA256_RAWSZ)
-/* The block size of SHA-256. */
-#define GIT_SHA256_BLKSZ 64
-
-/* The length in byte and in hex digits of the largest possible hash value. */
-#define GIT_MAX_RAWSZ GIT_SHA256_RAWSZ
-#define GIT_MAX_HEXSZ GIT_SHA256_HEXSZ
-/* The largest possible block size for any supported hash. */
-#define GIT_MAX_BLKSZ GIT_SHA256_BLKSZ
-
-struct object_id {
- unsigned char hash[GIT_MAX_RAWSZ];
-};
-
-#define the_hash_algo the_repository->hash_algo
-
#if defined(DT_UNKNOWN) && !defined(NO_D_TYPE_IN_DIRENT)
#define DTYPE(de) ((de)->d_type)
#else
@@ -826,7 +802,7 @@ int match_stat_data(const struct stat_data *sd, struct stat *st);
int match_stat_data_racy(const struct index_state *istate,
const struct stat_data *sd, struct stat *st);
-void fill_stat_cache_info(struct cache_entry *ce, struct stat *st);
+void fill_stat_cache_info(struct index_state *istate, struct cache_entry *ce, struct stat *st);
#define REFRESH_REALLY 0x0001 /* ignore_valid */
#define REFRESH_UNMERGED 0x0002 /* allow unmerged */
@@ -1500,7 +1476,8 @@ int df_name_compare(const char *name1, int len1, int mode1, const char *name2, i
int name_compare(const char *name1, size_t len1, const char *name2, size_t len2);
int cache_name_stage_compare(const char *name1, int len1, int stage1, const char *name2, int len2, int stage2);
-void *read_object_with_reference(const struct object_id *oid,
+void *read_object_with_reference(struct repository *r,
+ const struct object_id *oid,
const char *required_type,
unsigned long *size,
struct object_id *oid_ret);
@@ -1759,6 +1736,7 @@ void setup_pager(void);
int pager_in_use(void);
extern int pager_use_color;
int term_columns(void);
+void term_clear_line(void);
int decimal_width(uintmax_t);
int check_pager_config(const char *cmd);
void prepare_pager_args(struct child_process *, const char *pager);
@@ -1785,8 +1763,8 @@ int add_files_to_cache(const char *prefix, const struct pathspec *pathspec, int
extern int diff_auto_refresh_index;
/* match-trees.c */
-void shift_tree(const struct object_id *, const struct object_id *, struct object_id *, int);
-void shift_tree_by(const struct object_id *, const struct object_id *, struct object_id *, const char *);
+void shift_tree(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, int);
+void shift_tree_by(struct repository *, const struct object_id *, const struct object_id *, struct object_id *, const char *);
/*
* whitespace rules.
diff --git a/ci/install-dependencies.sh b/ci/install-dependencies.sh
index 7f6acdd..8cc7250 100755
--- a/ci/install-dependencies.sh
+++ b/ci/install-dependencies.sh
@@ -34,7 +34,7 @@ linux-clang|linux-gcc)
popd
;;
osx-clang|osx-gcc)
- brew update >/dev/null
+ export HOMEBREW_NO_AUTO_UPDATE=1 HOMEBREW_NO_INSTALL_CLEANUP=1
# Uncomment this if you want to run perf tests:
# brew install gnu-time
test -z "$BREW_INSTALL_PACKAGES" ||
diff --git a/ci/lib.sh b/ci/lib.sh
index 288a5b3..44db2d5 100755
--- a/ci/lib.sh
+++ b/ci/lib.sh
@@ -163,8 +163,10 @@ linux-clang|linux-gcc)
export GIT_TEST_HTTPD=YesPlease
# The Linux build installs the defined dependency versions below.
- # The OS X build installs the latest available versions. Keep that
- # in mind when you encounter a broken OS X build!
+ # The OS X build installs much more recent versions, whichever
+ # were recorded in the Homebrew database upon creating the OS X
+ # image.
+ # Keep that in mind when you encounter a broken OS X build!
export LINUX_P4_VERSION="16.2"
export LINUX_GIT_LFS_VERSION="1.5.2"
@@ -184,7 +186,7 @@ osx-clang|osx-gcc)
export GIT_SKIP_TESTS="t9810 t9816"
;;
GIT_TEST_GETTEXT_POISON)
- export GIT_TEST_GETTEXT_POISON=YesPlease
+ export GIT_TEST_GETTEXT_POISON=true
;;
esac
diff --git a/command-list.txt b/command-list.txt
index 3a9af10..a9ac72b 100644
--- a/command-list.txt
+++ b/command-list.txt
@@ -59,7 +59,7 @@ git-cat-file plumbinginterrogators
git-check-attr purehelpers
git-check-ignore purehelpers
git-check-mailmap purehelpers
-git-checkout mainporcelain history
+git-checkout mainporcelain
git-checkout-index plumbingmanipulators
git-check-ref-format purehelpers
git-cherry plumbinginterrogators complete
@@ -81,7 +81,7 @@ git-cvsimport foreignscminterface
git-cvsserver foreignscminterface
git-daemon synchingrepositories
git-describe mainporcelain
-git-diff mainporcelain history
+git-diff mainporcelain info
git-diff-files plumbinginterrogators
git-diff-index plumbinginterrogators
git-diff-tree plumbinginterrogators
@@ -150,7 +150,8 @@ git-repack ancillarymanipulators complete
git-replace ancillarymanipulators complete
git-request-pull foreignscminterface complete
git-rerere ancillaryinterrogators
-git-reset mainporcelain worktree
+git-reset mainporcelain history
+git-restore mainporcelain worktree
git-revert mainporcelain
git-rev-list plumbinginterrogators
git-rev-parse plumbinginterrogators
@@ -171,6 +172,7 @@ git-status mainporcelain info
git-stripspace purehelpers
git-submodule mainporcelain
git-svn foreignscminterface
+git-switch mainporcelain history
git-symbolic-ref plumbingmanipulators
git-tag mainporcelain history
git-unpack-file plumbinginterrogators
diff --git a/commit-graph.c b/commit-graph.c
index 7c5e548..b3c4de7 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -22,6 +22,7 @@
#define GRAPH_CHUNKID_OIDLOOKUP 0x4f49444c /* "OIDL" */
#define GRAPH_CHUNKID_DATA 0x43444154 /* "CDAT" */
#define GRAPH_CHUNKID_EXTRAEDGES 0x45444745 /* "EDGE" */
+#define GRAPH_CHUNKID_BASE 0x42415345 /* "BASE" */
#define GRAPH_DATA_WIDTH (the_hash_algo->rawsz + 16)
@@ -42,7 +43,28 @@
char *get_commit_graph_filename(const char *obj_dir)
{
- return xstrfmt("%s/info/commit-graph", obj_dir);
+ char *filename = xstrfmt("%s/info/commit-graph", obj_dir);
+ char *normalized = xmalloc(strlen(filename) + 1);
+ normalize_path_copy(normalized, filename);
+ free(filename);
+ return normalized;
+}
+
+static char *get_split_graph_filename(const char *obj_dir,
+ const char *oid_hex)
+{
+ char *filename = xstrfmt("%s/info/commit-graphs/graph-%s.graph",
+ obj_dir,
+ oid_hex);
+ char *normalized = xmalloc(strlen(filename) + 1);
+ normalize_path_copy(normalized, filename);
+ free(filename);
+ return normalized;
+}
+
+static char *get_chain_filename(const char *obj_dir)
+{
+ return xstrfmt("%s/info/commit-graphs/commit-graph-chain", obj_dir);
}
static uint8_t oid_version(void)
@@ -249,6 +271,12 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
else
graph->chunk_extra_edges = data + chunk_offset;
break;
+
+ case GRAPH_CHUNKID_BASE:
+ if (graph->chunk_base_graphs)
+ chunk_repeated = 1;
+ else
+ graph->chunk_base_graphs = data + chunk_offset;
}
if (chunk_repeated) {
@@ -267,6 +295,8 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
last_chunk_offset = chunk_offset;
}
+ hashcpy(graph->oid.hash, graph->data + graph->data_len - graph->hash_len);
+
if (verify_commit_graph_lite(graph)) {
free(graph);
return NULL;
@@ -280,26 +310,151 @@ static struct commit_graph *load_commit_graph_one(const char *graph_file)
struct stat st;
int fd;
+ struct commit_graph *g;
int open_ok = open_commit_graph(graph_file, &fd, &st);
if (!open_ok)
return NULL;
- return load_commit_graph_one_fd_st(fd, &st);
+ g = load_commit_graph_one_fd_st(fd, &st);
+
+ if (g)
+ g->filename = xstrdup(graph_file);
+
+ return g;
+}
+
+static struct commit_graph *load_commit_graph_v1(struct repository *r, const char *obj_dir)
+{
+ char *graph_name = get_commit_graph_filename(obj_dir);
+ struct commit_graph *g = load_commit_graph_one(graph_name);
+ free(graph_name);
+
+ if (g)
+ g->obj_dir = obj_dir;
+
+ return g;
+}
+
+static int add_graph_to_chain(struct commit_graph *g,
+ struct commit_graph *chain,
+ struct object_id *oids,
+ int n)
+{
+ struct commit_graph *cur_g = chain;
+
+ if (n && !g->chunk_base_graphs) {
+ warning(_("commit-graph has no base graphs chunk"));
+ return 0;
+ }
+
+ while (n) {
+ n--;
+
+ if (!cur_g ||
+ !oideq(&oids[n], &cur_g->oid) ||
+ !hasheq(oids[n].hash, g->chunk_base_graphs + g->hash_len * n)) {
+ warning(_("commit-graph chain does not match"));
+ return 0;
+ }
+
+ cur_g = cur_g->base_graph;
+ }
+
+ g->base_graph = chain;
+
+ if (chain)
+ g->num_commits_in_base = chain->num_commits + chain->num_commits_in_base;
+
+ return 1;
+}
+
+static struct commit_graph *load_commit_graph_chain(struct repository *r, const char *obj_dir)
+{
+ struct commit_graph *graph_chain = NULL;
+ struct strbuf line = STRBUF_INIT;
+ struct stat st;
+ struct object_id *oids;
+ int i = 0, valid = 1, count;
+ char *chain_name = get_chain_filename(obj_dir);
+ FILE *fp;
+ int stat_res;
+
+ fp = fopen(chain_name, "r");
+ stat_res = stat(chain_name, &st);
+ free(chain_name);
+
+ if (!fp ||
+ stat_res ||
+ st.st_size <= the_hash_algo->hexsz)
+ return NULL;
+
+ count = st.st_size / (the_hash_algo->hexsz + 1);
+ oids = xcalloc(count, sizeof(struct object_id));
+
+ prepare_alt_odb(r);
+
+ for (i = 0; i < count; i++) {
+ struct object_directory *odb;
+
+ if (strbuf_getline_lf(&line, fp) == EOF)
+ break;
+
+ if (get_oid_hex(line.buf, &oids[i])) {
+ warning(_("invalid commit-graph chain: line '%s' not a hash"),
+ line.buf);
+ valid = 0;
+ break;
+ }
+
+ valid = 0;
+ for (odb = r->objects->odb; odb; odb = odb->next) {
+ char *graph_name = get_split_graph_filename(odb->path, line.buf);
+ struct commit_graph *g = load_commit_graph_one(graph_name);
+
+ free(graph_name);
+
+ if (g) {
+ g->obj_dir = odb->path;
+
+ if (add_graph_to_chain(g, graph_chain, oids, i)) {
+ graph_chain = g;
+ valid = 1;
+ }
+
+ break;
+ }
+ }
+
+ if (!valid) {
+ warning(_("unable to find all commit-graph files"));
+ break;
+ }
+ }
+
+ free(oids);
+ fclose(fp);
+
+ return graph_chain;
+}
+
+struct commit_graph *read_commit_graph_one(struct repository *r, const char *obj_dir)
+{
+ struct commit_graph *g = load_commit_graph_v1(r, obj_dir);
+
+ if (!g)
+ g = load_commit_graph_chain(r, obj_dir);
+
+ return g;
}
static void prepare_commit_graph_one(struct repository *r, const char *obj_dir)
{
- char *graph_name;
if (r->objects->commit_graph)
return;
- graph_name = get_commit_graph_filename(obj_dir);
- r->objects->commit_graph =
- load_commit_graph_one(graph_name);
-
- FREE_AND_NULL(graph_name);
+ r->objects->commit_graph = read_commit_graph_one(r, obj_dir);
}
/*
@@ -361,10 +516,19 @@ int generation_numbers_enabled(struct repository *r)
return !!first_generation;
}
-void close_commit_graph(struct repository *r)
+static void close_commit_graph_one(struct commit_graph *g)
+{
+ if (!g)
+ return;
+
+ close_commit_graph_one(g->base_graph);
+ free_commit_graph(g);
+}
+
+void close_commit_graph(struct raw_object_store *o)
{
- free_commit_graph(r->objects->commit_graph);
- r->objects->commit_graph = NULL;
+ close_commit_graph_one(o->commit_graph);
+ o->commit_graph = NULL;
}
static int bsearch_graph(struct commit_graph *g, struct object_id *oid, uint32_t *pos)
@@ -373,18 +537,38 @@ static int bsearch_graph(struct commit_graph *g, struct object_id *oid, uint32_t
g->chunk_oid_lookup, g->hash_len, pos);
}
+static void load_oid_from_graph(struct commit_graph *g,
+ uint32_t pos,
+ struct object_id *oid)
+{
+ uint32_t lex_index;
+
+ while (g && pos < g->num_commits_in_base)
+ g = g->base_graph;
+
+ if (!g)
+ BUG("NULL commit-graph");
+
+ if (pos >= g->num_commits + g->num_commits_in_base)
+ die(_("invalid commit position. commit-graph is likely corrupt"));
+
+ lex_index = pos - g->num_commits_in_base;
+
+ hashcpy(oid->hash, g->chunk_oid_lookup + g->hash_len * lex_index);
+}
+
static struct commit_list **insert_parent_or_die(struct repository *r,
struct commit_graph *g,
- uint64_t pos,
+ uint32_t pos,
struct commit_list **pptr)
{
struct commit *c;
struct object_id oid;
- if (pos >= g->num_commits)
- die("invalid parent position %"PRIu64, pos);
+ if (pos >= g->num_commits + g->num_commits_in_base)
+ die("invalid parent position %"PRIu32, pos);
- hashcpy(oid.hash, g->chunk_oid_lookup + g->hash_len * pos);
+ load_oid_from_graph(g, pos, &oid);
c = lookup_commit(r, &oid);
if (!c)
die(_("could not find commit %s"), oid_to_hex(&oid));
@@ -394,7 +578,14 @@ static struct commit_list **insert_parent_or_die(struct repository *r,
static void fill_commit_graph_info(struct commit *item, struct commit_graph *g, uint32_t pos)
{
- const unsigned char *commit_data = g->chunk_commit_data + GRAPH_DATA_WIDTH * pos;
+ const unsigned char *commit_data;
+ uint32_t lex_index;
+
+ while (pos < g->num_commits_in_base)
+ g = g->base_graph;
+
+ lex_index = pos - g->num_commits_in_base;
+ commit_data = g->chunk_commit_data + GRAPH_DATA_WIDTH * lex_index;
item->graph_pos = pos;
item->generation = get_be32(commit_data + g->hash_len + 8) >> 2;
}
@@ -412,10 +603,25 @@ static int fill_commit_in_graph(struct repository *r,
uint32_t *parent_data_ptr;
uint64_t date_low, date_high;
struct commit_list **pptr;
- const unsigned char *commit_data = g->chunk_commit_data + (g->hash_len + 16) * pos;
+ const unsigned char *commit_data;
+ uint32_t lex_index;
- item->object.parsed = 1;
+ while (pos < g->num_commits_in_base)
+ g = g->base_graph;
+
+ if (pos >= g->num_commits + g->num_commits_in_base)
+ die(_("invalid commit position. commit-graph is likely corrupt"));
+
+ /*
+ * Store the "full" position, but then use the
+ * "local" position for the rest of the calculation.
+ */
item->graph_pos = pos;
+ lex_index = pos - g->num_commits_in_base;
+
+ commit_data = g->chunk_commit_data + (g->hash_len + 16) * lex_index;
+
+ item->object.parsed = 1;
set_commit_tree(item, NULL);
@@ -459,7 +665,18 @@ static int find_commit_in_graph(struct commit *item, struct commit_graph *g, uin
*pos = item->graph_pos;
return 1;
} else {
- return bsearch_graph(g, &(item->object.oid), pos);
+ struct commit_graph *cur_g = g;
+ uint32_t lex_index;
+
+ while (cur_g && !bsearch_graph(cur_g, &(item->object.oid), &lex_index))
+ cur_g = cur_g->base_graph;
+
+ if (cur_g) {
+ *pos = lex_index + cur_g->num_commits_in_base;
+ return 1;
+ }
+
+ return 0;
}
}
@@ -499,8 +716,13 @@ static struct tree *load_tree_for_commit(struct repository *r,
struct commit *c)
{
struct object_id oid;
- const unsigned char *commit_data = g->chunk_commit_data +
- GRAPH_DATA_WIDTH * (c->graph_pos);
+ const unsigned char *commit_data;
+
+ while (c->graph_pos < g->num_commits_in_base)
+ g = g->base_graph;
+
+ commit_data = g->chunk_commit_data +
+ GRAPH_DATA_WIDTH * (c->graph_pos - g->num_commits_in_base);
hashcpy(oid.hash, commit_data);
set_commit_tree(c, lookup_tree(r, &oid));
@@ -525,14 +747,51 @@ struct tree *get_commit_tree_in_graph(struct repository *r, const struct commit
return get_commit_tree_in_graph_one(r, r->objects->commit_graph, c);
}
+struct packed_commit_list {
+ struct commit **list;
+ int nr;
+ int alloc;
+};
+
+struct packed_oid_list {
+ struct object_id *list;
+ int nr;
+ int alloc;
+};
+
+struct write_commit_graph_context {
+ struct repository *r;
+ char *obj_dir;
+ char *graph_name;
+ struct packed_oid_list oids;
+ struct packed_commit_list commits;
+ int num_extra_edges;
+ unsigned long approx_nr_objects;
+ struct progress *progress;
+ int progress_done;
+ uint64_t progress_cnt;
+
+ char *base_graph_name;
+ int num_commit_graphs_before;
+ int num_commit_graphs_after;
+ char **commit_graph_filenames_before;
+ char **commit_graph_filenames_after;
+ char **commit_graph_hash_after;
+ uint32_t new_num_commits_in_base;
+ struct commit_graph *new_base_graph;
+
+ unsigned append:1,
+ report_progress:1,
+ split:1;
+
+ const struct split_commit_graph_opts *split_opts;
+};
+
static void write_graph_chunk_fanout(struct hashfile *f,
- struct commit **commits,
- int nr_commits,
- struct progress *progress,
- uint64_t *progress_cnt)
+ struct write_commit_graph_context *ctx)
{
int i, count = 0;
- struct commit **list = commits;
+ struct commit **list = ctx->commits.list;
/*
* Write the first-level table (the list is sorted,
@@ -540,10 +799,10 @@ static void write_graph_chunk_fanout(struct hashfile *f,
* having to do eight extra binary search iterations).
*/
for (i = 0; i < 256; i++) {
- while (count < nr_commits) {
+ while (count < ctx->commits.nr) {
if ((*list)->object.oid.hash[0] != i)
break;
- display_progress(progress, ++*progress_cnt);
+ display_progress(ctx->progress, ++ctx->progress_cnt);
count++;
list++;
}
@@ -553,14 +812,12 @@ static void write_graph_chunk_fanout(struct hashfile *f,
}
static void write_graph_chunk_oids(struct hashfile *f, int hash_len,
- struct commit **commits, int nr_commits,
- struct progress *progress,
- uint64_t *progress_cnt)
+ struct write_commit_graph_context *ctx)
{
- struct commit **list = commits;
+ struct commit **list = ctx->commits.list;
int count;
- for (count = 0; count < nr_commits; count++, list++) {
- display_progress(progress, ++*progress_cnt);
+ for (count = 0; count < ctx->commits.nr; count++, list++) {
+ display_progress(ctx->progress, ++ctx->progress_cnt);
hashwrite(f, (*list)->object.oid.hash, (int)hash_len);
}
}
@@ -572,19 +829,17 @@ static const unsigned char *commit_to_sha1(size_t index, void *table)
}
static void write_graph_chunk_data(struct hashfile *f, int hash_len,
- struct commit **commits, int nr_commits,
- struct progress *progress,
- uint64_t *progress_cnt)
+ struct write_commit_graph_context *ctx)
{
- struct commit **list = commits;
- struct commit **last = commits + nr_commits;
+ struct commit **list = ctx->commits.list;
+ struct commit **last = ctx->commits.list + ctx->commits.nr;
uint32_t num_extra_edges = 0;
while (list < last) {
struct commit_list *parent;
int edge_value;
uint32_t packedDate[2];
- display_progress(progress, ++*progress_cnt);
+ display_progress(ctx->progress, ++ctx->progress_cnt);
parse_commit_no_graph(*list);
hashwrite(f, get_commit_tree_oid(*list)->hash, hash_len);
@@ -595,10 +850,20 @@ static void write_graph_chunk_data(struct hashfile *f, int hash_len,
edge_value = GRAPH_PARENT_NONE;
else {
edge_value = sha1_pos(parent->item->object.oid.hash,
- commits,
- nr_commits,
+ ctx->commits.list,
+ ctx->commits.nr,
commit_to_sha1);
+ if (edge_value >= 0)
+ edge_value += ctx->new_num_commits_in_base;
+ else {
+ uint32_t pos;
+ if (find_commit_in_graph(parent->item,
+ ctx->new_base_graph,
+ &pos))
+ edge_value = pos;
+ }
+
if (edge_value < 0)
BUG("missing parent %s for commit %s",
oid_to_hex(&parent->item->object.oid),
@@ -616,9 +881,20 @@ static void write_graph_chunk_data(struct hashfile *f, int hash_len,
edge_value = GRAPH_EXTRA_EDGES_NEEDED | num_extra_edges;
else {
edge_value = sha1_pos(parent->item->object.oid.hash,
- commits,
- nr_commits,
+ ctx->commits.list,
+ ctx->commits.nr,
commit_to_sha1);
+
+ if (edge_value >= 0)
+ edge_value += ctx->new_num_commits_in_base;
+ else {
+ uint32_t pos;
+ if (find_commit_in_graph(parent->item,
+ ctx->new_base_graph,
+ &pos))
+ edge_value = pos;
+ }
+
if (edge_value < 0)
BUG("missing parent %s for commit %s",
oid_to_hex(&parent->item->object.oid),
@@ -649,19 +925,16 @@ static void write_graph_chunk_data(struct hashfile *f, int hash_len,
}
static void write_graph_chunk_extra_edges(struct hashfile *f,
- struct commit **commits,
- int nr_commits,
- struct progress *progress,
- uint64_t *progress_cnt)
+ struct write_commit_graph_context *ctx)
{
- struct commit **list = commits;
- struct commit **last = commits + nr_commits;
+ struct commit **list = ctx->commits.list;
+ struct commit **last = ctx->commits.list + ctx->commits.nr;
struct commit_list *parent;
while (list < last) {
int num_parents = 0;
- display_progress(progress, ++*progress_cnt);
+ display_progress(ctx->progress, ++ctx->progress_cnt);
for (parent = (*list)->parents; num_parents < 3 && parent;
parent = parent->next)
@@ -675,10 +948,20 @@ static void write_graph_chunk_extra_edges(struct hashfile *f,
/* Since num_parents > 2, this initializer is safe. */
for (parent = (*list)->parents->next; parent; parent = parent->next) {
int edge_value = sha1_pos(parent->item->object.oid.hash,
- commits,
- nr_commits,
+ ctx->commits.list,
+ ctx->commits.nr,
commit_to_sha1);
+ if (edge_value >= 0)
+ edge_value += ctx->new_num_commits_in_base;
+ else {
+ uint32_t pos;
+ if (find_commit_in_graph(parent->item,
+ ctx->new_base_graph,
+ &pos))
+ edge_value = pos;
+ }
+
if (edge_value < 0)
BUG("missing parent %s for commit %s",
oid_to_hex(&parent->item->object.oid),
@@ -693,132 +976,124 @@ static void write_graph_chunk_extra_edges(struct hashfile *f,
}
}
-static int commit_compare(const void *_a, const void *_b)
+static int oid_compare(const void *_a, const void *_b)
{
const struct object_id *a = (const struct object_id *)_a;
const struct object_id *b = (const struct object_id *)_b;
return oidcmp(a, b);
}
-struct packed_commit_list {
- struct commit **list;
- int nr;
- int alloc;
-};
-
-struct packed_oid_list {
- struct object_id *list;
- int nr;
- int alloc;
- struct progress *progress;
- int progress_done;
-};
-
static int add_packed_commits(const struct object_id *oid,
struct packed_git *pack,
uint32_t pos,
void *data)
{
- struct packed_oid_list *list = (struct packed_oid_list*)data;
+ struct write_commit_graph_context *ctx = (struct write_commit_graph_context*)data;
enum object_type type;
off_t offset = nth_packed_object_offset(pack, pos);
struct object_info oi = OBJECT_INFO_INIT;
- if (list->progress)
- display_progress(list->progress, ++list->progress_done);
+ if (ctx->progress)
+ display_progress(ctx->progress, ++ctx->progress_done);
oi.typep = &type;
- if (packed_object_info(the_repository, pack, offset, &oi) < 0)
+ if (packed_object_info(ctx->r, pack, offset, &oi) < 0)
die(_("unable to get type of object %s"), oid_to_hex(oid));
if (type != OBJ_COMMIT)
return 0;
- ALLOC_GROW(list->list, list->nr + 1, list->alloc);
- oidcpy(&(list->list[list->nr]), oid);
- list->nr++;
+ ALLOC_GROW(ctx->oids.list, ctx->oids.nr + 1, ctx->oids.alloc);
+ oidcpy(&(ctx->oids.list[ctx->oids.nr]), oid);
+ ctx->oids.nr++;
return 0;
}
-static void add_missing_parents(struct packed_oid_list *oids, struct commit *commit)
+static void add_missing_parents(struct write_commit_graph_context *ctx, struct commit *commit)
{
struct commit_list *parent;
for (parent = commit->parents; parent; parent = parent->next) {
if (!(parent->item->object.flags & UNINTERESTING)) {
- ALLOC_GROW(oids->list, oids->nr + 1, oids->alloc);
- oidcpy(&oids->list[oids->nr], &(parent->item->object.oid));
- oids->nr++;
+ ALLOC_GROW(ctx->oids.list, ctx->oids.nr + 1, ctx->oids.alloc);
+ oidcpy(&ctx->oids.list[ctx->oids.nr], &(parent->item->object.oid));
+ ctx->oids.nr++;
parent->item->object.flags |= UNINTERESTING;
}
}
}
-static void close_reachable(struct packed_oid_list *oids, int report_progress)
+static void close_reachable(struct write_commit_graph_context *ctx)
{
int i;
struct commit *commit;
- struct progress *progress = NULL;
- if (report_progress)
- progress = start_delayed_progress(
- _("Loading known commits in commit graph"), oids->nr);
- for (i = 0; i < oids->nr; i++) {
- display_progress(progress, i + 1);
- commit = lookup_commit(the_repository, &oids->list[i]);
+ if (ctx->report_progress)
+ ctx->progress = start_delayed_progress(
+ _("Loading known commits in commit graph"),
+ ctx->oids.nr);
+ for (i = 0; i < ctx->oids.nr; i++) {
+ display_progress(ctx->progress, i + 1);
+ commit = lookup_commit(ctx->r, &ctx->oids.list[i]);
if (commit)
commit->object.flags |= UNINTERESTING;
}
- stop_progress(&progress);
+ stop_progress(&ctx->progress);
/*
- * As this loop runs, oids->nr may grow, but not more
+ * As this loop runs, ctx->oids.nr may grow, but not more
* than the number of missing commits in the reachable
* closure.
*/
- if (report_progress)
- progress = start_delayed_progress(
- _("Expanding reachable commits in commit graph"), oids->nr);
- for (i = 0; i < oids->nr; i++) {
- display_progress(progress, i + 1);
- commit = lookup_commit(the_repository, &oids->list[i]);
-
- if (commit && !parse_commit_no_graph(commit))
- add_missing_parents(oids, commit);
+ if (ctx->report_progress)
+ ctx->progress = start_delayed_progress(
+ _("Expanding reachable commits in commit graph"),
+ ctx->oids.nr);
+ for (i = 0; i < ctx->oids.nr; i++) {
+ display_progress(ctx->progress, i + 1);
+ commit = lookup_commit(ctx->r, &ctx->oids.list[i]);
+
+ if (!commit)
+ continue;
+ if (ctx->split) {
+ if (!parse_commit(commit) &&
+ commit->graph_pos == COMMIT_NOT_FROM_GRAPH)
+ add_missing_parents(ctx, commit);
+ } else if (!parse_commit_no_graph(commit))
+ add_missing_parents(ctx, commit);
}
- stop_progress(&progress);
+ stop_progress(&ctx->progress);
- if (report_progress)
- progress = start_delayed_progress(
- _("Clearing commit marks in commit graph"), oids->nr);
- for (i = 0; i < oids->nr; i++) {
- display_progress(progress, i + 1);
- commit = lookup_commit(the_repository, &oids->list[i]);
+ if (ctx->report_progress)
+ ctx->progress = start_delayed_progress(
+ _("Clearing commit marks in commit graph"),
+ ctx->oids.nr);
+ for (i = 0; i < ctx->oids.nr; i++) {
+ display_progress(ctx->progress, i + 1);
+ commit = lookup_commit(ctx->r, &ctx->oids.list[i]);
if (commit)
commit->object.flags &= ~UNINTERESTING;
}
- stop_progress(&progress);
+ stop_progress(&ctx->progress);
}
-static void compute_generation_numbers(struct packed_commit_list* commits,
- int report_progress)
+static void compute_generation_numbers(struct write_commit_graph_context *ctx)
{
int i;
struct commit_list *list = NULL;
- struct progress *progress = NULL;
- if (report_progress)
- progress = start_progress(
- _("Computing commit graph generation numbers"),
- commits->nr);
- for (i = 0; i < commits->nr; i++) {
- display_progress(progress, i + 1);
- if (commits->list[i]->generation != GENERATION_NUMBER_INFINITY &&
- commits->list[i]->generation != GENERATION_NUMBER_ZERO)
+ if (ctx->report_progress)
+ ctx->progress = start_progress(
+ _("Computing commit graph generation numbers"),
+ ctx->commits.nr);
+ for (i = 0; i < ctx->commits.nr; i++) {
+ display_progress(ctx->progress, i + 1);
+ if (ctx->commits.list[i]->generation != GENERATION_NUMBER_INFINITY &&
+ ctx->commits.list[i]->generation != GENERATION_NUMBER_ZERO)
continue;
- commit_list_insert(commits->list[i], &list);
+ commit_list_insert(ctx->commits.list[i], &list);
while (list) {
struct commit *current = list->item;
struct commit_list *parent;
@@ -845,7 +1120,7 @@ static void compute_generation_numbers(struct packed_commit_list* commits,
}
}
}
- stop_progress(&progress);
+ stop_progress(&ctx->progress);
}
static int add_ref_to_list(const char *refname,
@@ -858,230 +1133,294 @@ static int add_ref_to_list(const char *refname,
return 0;
}
-void write_commit_graph_reachable(const char *obj_dir, int append,
- int report_progress)
+int write_commit_graph_reachable(const char *obj_dir, unsigned int flags,
+ const struct split_commit_graph_opts *split_opts)
{
struct string_list list = STRING_LIST_INIT_DUP;
+ int result;
for_each_ref(add_ref_to_list, &list);
- write_commit_graph(obj_dir, NULL, &list, append, report_progress);
+ result = write_commit_graph(obj_dir, NULL, &list,
+ flags, split_opts);
string_list_clear(&list, 0);
+ return result;
}
-void write_commit_graph(const char *obj_dir,
- struct string_list *pack_indexes,
- struct string_list *commit_hex,
- int append, int report_progress)
+static int fill_oids_from_packs(struct write_commit_graph_context *ctx,
+ struct string_list *pack_indexes)
{
- struct packed_oid_list oids;
- struct packed_commit_list commits;
- struct hashfile *f;
- uint32_t i, count_distinct = 0;
- char *graph_name;
- struct lock_file lk = LOCK_INIT;
- uint32_t chunk_ids[5];
- uint64_t chunk_offsets[5];
- int num_chunks;
- int num_extra_edges;
- struct commit_list *parent;
- struct progress *progress = NULL;
- const unsigned hashsz = the_hash_algo->rawsz;
- uint64_t progress_cnt = 0;
+ uint32_t i;
struct strbuf progress_title = STRBUF_INIT;
- unsigned long approx_nr_objects;
-
- if (!commit_graph_compatible(the_repository))
- return;
+ struct strbuf packname = STRBUF_INIT;
+ int dirlen;
- oids.nr = 0;
- approx_nr_objects = approximate_object_count();
- oids.alloc = approx_nr_objects / 32;
- oids.progress = NULL;
- oids.progress_done = 0;
-
- if (append) {
- prepare_commit_graph_one(the_repository, obj_dir);
- if (the_repository->objects->commit_graph)
- oids.alloc += the_repository->objects->commit_graph->num_commits;
- }
-
- if (oids.alloc < 1024)
- oids.alloc = 1024;
- ALLOC_ARRAY(oids.list, oids.alloc);
-
- if (append && the_repository->objects->commit_graph) {
- struct commit_graph *commit_graph =
- the_repository->objects->commit_graph;
- for (i = 0; i < commit_graph->num_commits; i++) {
- const unsigned char *hash = commit_graph->chunk_oid_lookup +
- commit_graph->hash_len * i;
- hashcpy(oids.list[oids.nr++].hash, hash);
- }
+ strbuf_addf(&packname, "%s/pack/", ctx->obj_dir);
+ dirlen = packname.len;
+ if (ctx->report_progress) {
+ strbuf_addf(&progress_title,
+ Q_("Finding commits for commit graph in %d pack",
+ "Finding commits for commit graph in %d packs",
+ pack_indexes->nr),
+ pack_indexes->nr);
+ ctx->progress = start_delayed_progress(progress_title.buf, 0);
+ ctx->progress_done = 0;
}
-
- if (pack_indexes) {
- struct strbuf packname = STRBUF_INIT;
- int dirlen;
- strbuf_addf(&packname, "%s/pack/", obj_dir);
- dirlen = packname.len;
- if (report_progress) {
- strbuf_addf(&progress_title,
- Q_("Finding commits for commit graph in %d pack",
- "Finding commits for commit graph in %d packs",
- pack_indexes->nr),
- pack_indexes->nr);
- oids.progress = start_delayed_progress(progress_title.buf, 0);
- oids.progress_done = 0;
- }
- for (i = 0; i < pack_indexes->nr; i++) {
- struct packed_git *p;
- strbuf_setlen(&packname, dirlen);
- strbuf_addstr(&packname, pack_indexes->items[i].string);
- p = add_packed_git(packname.buf, packname.len, 1);
- if (!p)
- die(_("error adding pack %s"), packname.buf);
- if (open_pack_index(p))
- die(_("error opening index for %s"), packname.buf);
- for_each_object_in_pack(p, add_packed_commits, &oids,
- FOR_EACH_OBJECT_PACK_ORDER);
- close_pack(p);
- free(p);
+ for (i = 0; i < pack_indexes->nr; i++) {
+ struct packed_git *p;
+ strbuf_setlen(&packname, dirlen);
+ strbuf_addstr(&packname, pack_indexes->items[i].string);
+ p = add_packed_git(packname.buf, packname.len, 1);
+ if (!p) {
+ error(_("error adding pack %s"), packname.buf);
+ return -1;
}
- stop_progress(&oids.progress);
- strbuf_reset(&progress_title);
- strbuf_release(&packname);
- }
-
- if (commit_hex) {
- if (report_progress) {
- strbuf_addf(&progress_title,
- Q_("Finding commits for commit graph from %d ref",
- "Finding commits for commit graph from %d refs",
- commit_hex->nr),
- commit_hex->nr);
- progress = start_delayed_progress(progress_title.buf,
- commit_hex->nr);
- }
- for (i = 0; i < commit_hex->nr; i++) {
- const char *end;
- struct object_id oid;
- struct commit *result;
-
- display_progress(progress, i + 1);
- if (commit_hex->items[i].string &&
- parse_oid_hex(commit_hex->items[i].string, &oid, &end))
- continue;
-
- result = lookup_commit_reference_gently(the_repository, &oid, 1);
-
- if (result) {
- ALLOC_GROW(oids.list, oids.nr + 1, oids.alloc);
- oidcpy(&oids.list[oids.nr], &(result->object.oid));
- oids.nr++;
- }
+ if (open_pack_index(p)) {
+ error(_("error opening index for %s"), packname.buf);
+ return -1;
}
- stop_progress(&progress);
- strbuf_reset(&progress_title);
+ for_each_object_in_pack(p, add_packed_commits, ctx,
+ FOR_EACH_OBJECT_PACK_ORDER);
+ close_pack(p);
+ free(p);
}
- if (!pack_indexes && !commit_hex) {
- if (report_progress)
- oids.progress = start_delayed_progress(
- _("Finding commits for commit graph among packed objects"),
- approx_nr_objects);
- for_each_packed_object(add_packed_commits, &oids,
- FOR_EACH_OBJECT_PACK_ORDER);
- if (oids.progress_done < approx_nr_objects)
- display_progress(oids.progress, approx_nr_objects);
- stop_progress(&oids.progress);
+ stop_progress(&ctx->progress);
+ strbuf_reset(&progress_title);
+ strbuf_release(&packname);
+
+ return 0;
+}
+
+static void fill_oids_from_commit_hex(struct write_commit_graph_context *ctx,
+ struct string_list *commit_hex)
+{
+ uint32_t i;
+ struct strbuf progress_title = STRBUF_INIT;
+
+ if (ctx->report_progress) {
+ strbuf_addf(&progress_title,
+ Q_("Finding commits for commit graph from %d ref",
+ "Finding commits for commit graph from %d refs",
+ commit_hex->nr),
+ commit_hex->nr);
+ ctx->progress = start_delayed_progress(
+ progress_title.buf,
+ commit_hex->nr);
}
+ for (i = 0; i < commit_hex->nr; i++) {
+ const char *end;
+ struct object_id oid;
+ struct commit *result;
+
+ display_progress(ctx->progress, i + 1);
+ if (commit_hex->items[i].string &&
+ parse_oid_hex(commit_hex->items[i].string, &oid, &end))
+ continue;
- close_reachable(&oids, report_progress);
+ result = lookup_commit_reference_gently(ctx->r, &oid, 1);
- if (report_progress)
- progress = start_delayed_progress(
+ if (result) {
+ ALLOC_GROW(ctx->oids.list, ctx->oids.nr + 1, ctx->oids.alloc);
+ oidcpy(&ctx->oids.list[ctx->oids.nr], &(result->object.oid));
+ ctx->oids.nr++;
+ }
+ }
+ stop_progress(&ctx->progress);
+ strbuf_release(&progress_title);
+}
+
+static void fill_oids_from_all_packs(struct write_commit_graph_context *ctx)
+{
+ if (ctx->report_progress)
+ ctx->progress = start_delayed_progress(
+ _("Finding commits for commit graph among packed objects"),
+ ctx->approx_nr_objects);
+ for_each_packed_object(add_packed_commits, ctx,
+ FOR_EACH_OBJECT_PACK_ORDER);
+ if (ctx->progress_done < ctx->approx_nr_objects)
+ display_progress(ctx->progress, ctx->approx_nr_objects);
+ stop_progress(&ctx->progress);
+}
+
+static uint32_t count_distinct_commits(struct write_commit_graph_context *ctx)
+{
+ uint32_t i, count_distinct = 1;
+
+ if (ctx->report_progress)
+ ctx->progress = start_delayed_progress(
_("Counting distinct commits in commit graph"),
- oids.nr);
- display_progress(progress, 0); /* TODO: Measure QSORT() progress */
- QSORT(oids.list, oids.nr, commit_compare);
- count_distinct = 1;
- for (i = 1; i < oids.nr; i++) {
- display_progress(progress, i + 1);
- if (!oideq(&oids.list[i - 1], &oids.list[i]))
+ ctx->oids.nr);
+ display_progress(ctx->progress, 0); /* TODO: Measure QSORT() progress */
+ QSORT(ctx->oids.list, ctx->oids.nr, oid_compare);
+
+ for (i = 1; i < ctx->oids.nr; i++) {
+ display_progress(ctx->progress, i + 1);
+ if (!oideq(&ctx->oids.list[i - 1], &ctx->oids.list[i])) {
+ if (ctx->split) {
+ struct commit *c = lookup_commit(ctx->r, &ctx->oids.list[i]);
+
+ if (!c || c->graph_pos != COMMIT_NOT_FROM_GRAPH)
+ continue;
+ }
+
count_distinct++;
+ }
}
- stop_progress(&progress);
+ stop_progress(&ctx->progress);
- if (count_distinct >= GRAPH_EDGE_LAST_MASK)
- die(_("the commit graph format cannot write %d commits"), count_distinct);
+ return count_distinct;
+}
- commits.nr = 0;
- commits.alloc = count_distinct;
- ALLOC_ARRAY(commits.list, commits.alloc);
+static void copy_oids_to_commits(struct write_commit_graph_context *ctx)
+{
+ uint32_t i;
+ struct commit_list *parent;
- num_extra_edges = 0;
- if (report_progress)
- progress = start_delayed_progress(
+ ctx->num_extra_edges = 0;
+ if (ctx->report_progress)
+ ctx->progress = start_delayed_progress(
_("Finding extra edges in commit graph"),
- oids.nr);
- for (i = 0; i < oids.nr; i++) {
+ ctx->oids.nr);
+ for (i = 0; i < ctx->oids.nr; i++) {
int num_parents = 0;
- display_progress(progress, i + 1);
- if (i > 0 && oideq(&oids.list[i - 1], &oids.list[i]))
+ display_progress(ctx->progress, i + 1);
+ if (i > 0 && oideq(&ctx->oids.list[i - 1], &ctx->oids.list[i]))
continue;
- commits.list[commits.nr] = lookup_commit(the_repository, &oids.list[i]);
- parse_commit_no_graph(commits.list[commits.nr]);
+ ALLOC_GROW(ctx->commits.list, ctx->commits.nr + 1, ctx->commits.alloc);
+ ctx->commits.list[ctx->commits.nr] = lookup_commit(ctx->r, &ctx->oids.list[i]);
- for (parent = commits.list[commits.nr]->parents;
+ if (ctx->split &&
+ ctx->commits.list[ctx->commits.nr]->graph_pos != COMMIT_NOT_FROM_GRAPH)
+ continue;
+
+ parse_commit_no_graph(ctx->commits.list[ctx->commits.nr]);
+
+ for (parent = ctx->commits.list[ctx->commits.nr]->parents;
parent; parent = parent->next)
num_parents++;
if (num_parents > 2)
- num_extra_edges += num_parents - 1;
+ ctx->num_extra_edges += num_parents - 1;
- commits.nr++;
+ ctx->commits.nr++;
}
- num_chunks = num_extra_edges ? 4 : 3;
- stop_progress(&progress);
+ stop_progress(&ctx->progress);
+}
- if (commits.nr >= GRAPH_EDGE_LAST_MASK)
- die(_("too many commits to write graph"));
+static int write_graph_chunk_base_1(struct hashfile *f,
+ struct commit_graph *g)
+{
+ int num = 0;
- compute_generation_numbers(&commits, report_progress);
+ if (!g)
+ return 0;
+
+ num = write_graph_chunk_base_1(f, g->base_graph);
+ hashwrite(f, g->oid.hash, the_hash_algo->rawsz);
+ return num + 1;
+}
- graph_name = get_commit_graph_filename(obj_dir);
- if (safe_create_leading_directories(graph_name)) {
- UNLEAK(graph_name);
- die_errno(_("unable to create leading directories of %s"),
- graph_name);
+static int write_graph_chunk_base(struct hashfile *f,
+ struct write_commit_graph_context *ctx)
+{
+ int num = write_graph_chunk_base_1(f, ctx->new_base_graph);
+
+ if (num != ctx->num_commit_graphs_after - 1) {
+ error(_("failed to write correct number of base graph ids"));
+ return -1;
}
- hold_lock_file_for_update(&lk, graph_name, LOCK_DIE_ON_ERROR);
- f = hashfd(lk.tempfile->fd, lk.tempfile->filename.buf);
+ return 0;
+}
- hashwrite_be32(f, GRAPH_SIGNATURE);
+static int write_commit_graph_file(struct write_commit_graph_context *ctx)
+{
+ uint32_t i;
+ int fd;
+ struct hashfile *f;
+ struct lock_file lk = LOCK_INIT;
+ uint32_t chunk_ids[6];
+ uint64_t chunk_offsets[6];
+ const unsigned hashsz = the_hash_algo->rawsz;
+ struct strbuf progress_title = STRBUF_INIT;
+ int num_chunks = 3;
+ struct object_id file_hash;
- hashwrite_u8(f, GRAPH_VERSION);
- hashwrite_u8(f, oid_version());
- hashwrite_u8(f, num_chunks);
- hashwrite_u8(f, 0); /* unused padding byte */
+ if (ctx->split) {
+ struct strbuf tmp_file = STRBUF_INIT;
+
+ strbuf_addf(&tmp_file,
+ "%s/info/commit-graphs/tmp_graph_XXXXXX",
+ ctx->obj_dir);
+ ctx->graph_name = strbuf_detach(&tmp_file, NULL);
+ } else {
+ ctx->graph_name = get_commit_graph_filename(ctx->obj_dir);
+ }
+
+ if (safe_create_leading_directories(ctx->graph_name)) {
+ UNLEAK(ctx->graph_name);
+ error(_("unable to create leading directories of %s"),
+ ctx->graph_name);
+ return -1;
+ }
+
+ if (ctx->split) {
+ char *lock_name = get_chain_filename(ctx->obj_dir);
+
+ hold_lock_file_for_update(&lk, lock_name, LOCK_DIE_ON_ERROR);
+
+ fd = git_mkstemp_mode(ctx->graph_name, 0444);
+ if (fd < 0) {
+ error(_("unable to create '%s'"), ctx->graph_name);
+ return -1;
+ }
+
+ f = hashfd(fd, ctx->graph_name);
+ } else {
+ hold_lock_file_for_update(&lk, ctx->graph_name, LOCK_DIE_ON_ERROR);
+ fd = lk.tempfile->fd;
+ f = hashfd(lk.tempfile->fd, lk.tempfile->filename.buf);
+ }
chunk_ids[0] = GRAPH_CHUNKID_OIDFANOUT;
chunk_ids[1] = GRAPH_CHUNKID_OIDLOOKUP;
chunk_ids[2] = GRAPH_CHUNKID_DATA;
- if (num_extra_edges)
- chunk_ids[3] = GRAPH_CHUNKID_EXTRAEDGES;
- else
- chunk_ids[3] = 0;
- chunk_ids[4] = 0;
+ if (ctx->num_extra_edges) {
+ chunk_ids[num_chunks] = GRAPH_CHUNKID_EXTRAEDGES;
+ num_chunks++;
+ }
+ if (ctx->num_commit_graphs_after > 1) {
+ chunk_ids[num_chunks] = GRAPH_CHUNKID_BASE;
+ num_chunks++;
+ }
+
+ chunk_ids[num_chunks] = 0;
chunk_offsets[0] = 8 + (num_chunks + 1) * GRAPH_CHUNKLOOKUP_WIDTH;
chunk_offsets[1] = chunk_offsets[0] + GRAPH_FANOUT_SIZE;
- chunk_offsets[2] = chunk_offsets[1] + hashsz * commits.nr;
- chunk_offsets[3] = chunk_offsets[2] + (hashsz + 16) * commits.nr;
- chunk_offsets[4] = chunk_offsets[3] + 4 * num_extra_edges;
+ chunk_offsets[2] = chunk_offsets[1] + hashsz * ctx->commits.nr;
+ chunk_offsets[3] = chunk_offsets[2] + (hashsz + 16) * ctx->commits.nr;
+
+ num_chunks = 3;
+ if (ctx->num_extra_edges) {
+ chunk_offsets[num_chunks + 1] = chunk_offsets[num_chunks] +
+ 4 * ctx->num_extra_edges;
+ num_chunks++;
+ }
+ if (ctx->num_commit_graphs_after > 1) {
+ chunk_offsets[num_chunks + 1] = chunk_offsets[num_chunks] +
+ hashsz * (ctx->num_commit_graphs_after - 1);
+ num_chunks++;
+ }
+
+ hashwrite_be32(f, GRAPH_SIGNATURE);
+
+ hashwrite_u8(f, GRAPH_VERSION);
+ hashwrite_u8(f, oid_version());
+ hashwrite_u8(f, num_chunks);
+ hashwrite_u8(f, ctx->num_commit_graphs_after - 1);
for (i = 0; i <= num_chunks; i++) {
uint32_t chunk_write[3];
@@ -1092,31 +1431,472 @@ void write_commit_graph(const char *obj_dir,
hashwrite(f, chunk_write, 12);
}
- if (report_progress) {
+ if (ctx->report_progress) {
strbuf_addf(&progress_title,
Q_("Writing out commit graph in %d pass",
"Writing out commit graph in %d passes",
num_chunks),
num_chunks);
- progress = start_delayed_progress(
+ ctx->progress = start_delayed_progress(
progress_title.buf,
- num_chunks * commits.nr);
+ num_chunks * ctx->commits.nr);
}
- write_graph_chunk_fanout(f, commits.list, commits.nr, progress, &progress_cnt);
- write_graph_chunk_oids(f, hashsz, commits.list, commits.nr, progress, &progress_cnt);
- write_graph_chunk_data(f, hashsz, commits.list, commits.nr, progress, &progress_cnt);
- if (num_extra_edges)
- write_graph_chunk_extra_edges(f, commits.list, commits.nr, progress, &progress_cnt);
- stop_progress(&progress);
+ write_graph_chunk_fanout(f, ctx);
+ write_graph_chunk_oids(f, hashsz, ctx);
+ write_graph_chunk_data(f, hashsz, ctx);
+ if (ctx->num_extra_edges)
+ write_graph_chunk_extra_edges(f, ctx);
+ if (ctx->num_commit_graphs_after > 1 &&
+ write_graph_chunk_base(f, ctx)) {
+ return -1;
+ }
+ stop_progress(&ctx->progress);
strbuf_release(&progress_title);
- close_commit_graph(the_repository);
- finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_FSYNC);
+ if (ctx->split && ctx->base_graph_name && ctx->num_commit_graphs_after > 1) {
+ char *new_base_hash = xstrdup(oid_to_hex(&ctx->new_base_graph->oid));
+ char *new_base_name = get_split_graph_filename(ctx->new_base_graph->obj_dir, new_base_hash);
+
+ free(ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 2]);
+ free(ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 2]);
+ ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 2] = new_base_name;
+ ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 2] = new_base_hash;
+ }
+
+ close_commit_graph(ctx->r->objects);
+ finalize_hashfile(f, file_hash.hash, CSUM_HASH_IN_STREAM | CSUM_FSYNC);
+
+ if (ctx->split) {
+ FILE *chainf = fdopen_lock_file(&lk, "w");
+ char *final_graph_name;
+ int result;
+
+ close(fd);
+
+ if (!chainf) {
+ error(_("unable to open commit-graph chain file"));
+ return -1;
+ }
+
+ if (ctx->base_graph_name) {
+ const char *dest = ctx->commit_graph_filenames_after[
+ ctx->num_commit_graphs_after - 2];
+
+ if (strcmp(ctx->base_graph_name, dest)) {
+ result = rename(ctx->base_graph_name, dest);
+
+ if (result) {
+ error(_("failed to rename base commit-graph file"));
+ return -1;
+ }
+ }
+ } else {
+ char *graph_name = get_commit_graph_filename(ctx->obj_dir);
+ unlink(graph_name);
+ }
+
+ ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 1] = xstrdup(oid_to_hex(&file_hash));
+ final_graph_name = get_split_graph_filename(ctx->obj_dir,
+ ctx->commit_graph_hash_after[ctx->num_commit_graphs_after - 1]);
+ ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 1] = final_graph_name;
+
+ result = rename(ctx->graph_name, final_graph_name);
+
+ for (i = 0; i < ctx->num_commit_graphs_after; i++)
+ fprintf(lk.tempfile->fp, "%s\n", ctx->commit_graph_hash_after[i]);
+
+ if (result) {
+ error(_("failed to rename temporary commit-graph file"));
+ return -1;
+ }
+ }
+
commit_lock_file(&lk);
- free(graph_name);
- free(commits.list);
- free(oids.list);
+ return 0;
+}
+
+static void split_graph_merge_strategy(struct write_commit_graph_context *ctx)
+{
+ struct commit_graph *g = ctx->r->objects->commit_graph;
+ uint32_t num_commits = ctx->commits.nr;
+ uint32_t i;
+
+ int max_commits = 0;
+ int size_mult = 2;
+
+ if (ctx->split_opts) {
+ max_commits = ctx->split_opts->max_commits;
+ size_mult = ctx->split_opts->size_multiple;
+ }
+
+ g = ctx->r->objects->commit_graph;
+ ctx->num_commit_graphs_after = ctx->num_commit_graphs_before + 1;
+
+ while (g && (g->num_commits <= size_mult * num_commits ||
+ (max_commits && num_commits > max_commits))) {
+ if (strcmp(g->obj_dir, ctx->obj_dir))
+ break;
+
+ num_commits += g->num_commits;
+ g = g->base_graph;
+
+ ctx->num_commit_graphs_after--;
+ }
+
+ ctx->new_base_graph = g;
+
+ if (ctx->num_commit_graphs_after == 2) {
+ char *old_graph_name = get_commit_graph_filename(g->obj_dir);
+
+ if (!strcmp(g->filename, old_graph_name) &&
+ strcmp(g->obj_dir, ctx->obj_dir)) {
+ ctx->num_commit_graphs_after = 1;
+ ctx->new_base_graph = NULL;
+ }
+
+ free(old_graph_name);
+ }
+
+ ALLOC_ARRAY(ctx->commit_graph_filenames_after, ctx->num_commit_graphs_after);
+ ALLOC_ARRAY(ctx->commit_graph_hash_after, ctx->num_commit_graphs_after);
+
+ for (i = 0; i < ctx->num_commit_graphs_after &&
+ i < ctx->num_commit_graphs_before; i++)
+ ctx->commit_graph_filenames_after[i] = xstrdup(ctx->commit_graph_filenames_before[i]);
+
+ i = ctx->num_commit_graphs_before - 1;
+ g = ctx->r->objects->commit_graph;
+
+ while (g) {
+ if (i < ctx->num_commit_graphs_after)
+ ctx->commit_graph_hash_after[i] = xstrdup(oid_to_hex(&g->oid));
+
+ i--;
+ g = g->base_graph;
+ }
+}
+
+static void merge_commit_graph(struct write_commit_graph_context *ctx,
+ struct commit_graph *g)
+{
+ uint32_t i;
+ uint32_t offset = g->num_commits_in_base;
+
+ ALLOC_GROW(ctx->commits.list, ctx->commits.nr + g->num_commits, ctx->commits.alloc);
+
+ for (i = 0; i < g->num_commits; i++) {
+ struct object_id oid;
+ struct commit *result;
+
+ display_progress(ctx->progress, i + 1);
+
+ load_oid_from_graph(g, i + offset, &oid);
+
+ /* only add commits if they still exist in the repo */
+ result = lookup_commit_reference_gently(ctx->r, &oid, 1);
+
+ if (result) {
+ ctx->commits.list[ctx->commits.nr] = result;
+ ctx->commits.nr++;
+ }
+ }
+}
+
+static int commit_compare(const void *_a, const void *_b)
+{
+ const struct commit *a = *(const struct commit **)_a;
+ const struct commit *b = *(const struct commit **)_b;
+ return oidcmp(&a->object.oid, &b->object.oid);
+}
+
+static void sort_and_scan_merged_commits(struct write_commit_graph_context *ctx)
+{
+ uint32_t i, num_parents;
+ struct commit_list *parent;
+
+ if (ctx->report_progress)
+ ctx->progress = start_delayed_progress(
+ _("Scanning merged commits"),
+ ctx->commits.nr);
+
+ QSORT(ctx->commits.list, ctx->commits.nr, commit_compare);
+
+ ctx->num_extra_edges = 0;
+ for (i = 0; i < ctx->commits.nr; i++) {
+ display_progress(ctx->progress, i);
+
+ if (i && oideq(&ctx->commits.list[i - 1]->object.oid,
+ &ctx->commits.list[i]->object.oid)) {
+ die(_("unexpected duplicate commit id %s"),
+ oid_to_hex(&ctx->commits.list[i]->object.oid));
+ } else {
+ num_parents = 0;
+ for (parent = ctx->commits.list[i]->parents; parent; parent = parent->next)
+ num_parents++;
+
+ if (num_parents > 2)
+ ctx->num_extra_edges += num_parents - 2;
+ }
+ }
+
+ stop_progress(&ctx->progress);
+}
+
+static void merge_commit_graphs(struct write_commit_graph_context *ctx)
+{
+ struct commit_graph *g = ctx->r->objects->commit_graph;
+ uint32_t current_graph_number = ctx->num_commit_graphs_before;
+ struct strbuf progress_title = STRBUF_INIT;
+
+ while (g && current_graph_number >= ctx->num_commit_graphs_after) {
+ current_graph_number--;
+
+ if (ctx->report_progress) {
+ strbuf_addstr(&progress_title, _("Merging commit-graph"));
+ ctx->progress = start_delayed_progress(progress_title.buf, 0);
+ }
+
+ merge_commit_graph(ctx, g);
+ stop_progress(&ctx->progress);
+ strbuf_release(&progress_title);
+
+ g = g->base_graph;
+ }
+
+ if (g) {
+ ctx->new_base_graph = g;
+ ctx->new_num_commits_in_base = g->num_commits + g->num_commits_in_base;
+ }
+
+ if (ctx->new_base_graph)
+ ctx->base_graph_name = xstrdup(ctx->new_base_graph->filename);
+
+ sort_and_scan_merged_commits(ctx);
+}
+
+static void mark_commit_graphs(struct write_commit_graph_context *ctx)
+{
+ uint32_t i;
+ time_t now = time(NULL);
+
+ for (i = ctx->num_commit_graphs_after - 1; i < ctx->num_commit_graphs_before; i++) {
+ struct stat st;
+ struct utimbuf updated_time;
+
+ stat(ctx->commit_graph_filenames_before[i], &st);
+
+ updated_time.actime = st.st_atime;
+ updated_time.modtime = now;
+ utime(ctx->commit_graph_filenames_before[i], &updated_time);
+ }
+}
+
+static void expire_commit_graphs(struct write_commit_graph_context *ctx)
+{
+ struct strbuf path = STRBUF_INIT;
+ DIR *dir;
+ struct dirent *de;
+ size_t dirnamelen;
+ timestamp_t expire_time = time(NULL);
+
+ if (ctx->split_opts && ctx->split_opts->expire_time)
+ expire_time -= ctx->split_opts->expire_time;
+ if (!ctx->split) {
+ char *chain_file_name = get_chain_filename(ctx->obj_dir);
+ unlink(chain_file_name);
+ free(chain_file_name);
+ ctx->num_commit_graphs_after = 0;
+ }
+
+ strbuf_addstr(&path, ctx->obj_dir);
+ strbuf_addstr(&path, "/info/commit-graphs");
+ dir = opendir(path.buf);
+
+ if (!dir) {
+ strbuf_release(&path);
+ return;
+ }
+
+ strbuf_addch(&path, '/');
+ dirnamelen = path.len;
+ while ((de = readdir(dir)) != NULL) {
+ struct stat st;
+ uint32_t i, found = 0;
+
+ strbuf_setlen(&path, dirnamelen);
+ strbuf_addstr(&path, de->d_name);
+
+ stat(path.buf, &st);
+
+ if (st.st_mtime > expire_time)
+ continue;
+ if (path.len < 6 || strcmp(path.buf + path.len - 6, ".graph"))
+ continue;
+
+ for (i = 0; i < ctx->num_commit_graphs_after; i++) {
+ if (!strcmp(ctx->commit_graph_filenames_after[i],
+ path.buf)) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ unlink(path.buf);
+ }
+}
+
+int write_commit_graph(const char *obj_dir,
+ struct string_list *pack_indexes,
+ struct string_list *commit_hex,
+ unsigned int flags,
+ const struct split_commit_graph_opts *split_opts)
+{
+ struct write_commit_graph_context *ctx;
+ uint32_t i, count_distinct = 0;
+ size_t len;
+ int res = 0;
+
+ if (!commit_graph_compatible(the_repository))
+ return 0;
+
+ ctx = xcalloc(1, sizeof(struct write_commit_graph_context));
+ ctx->r = the_repository;
+
+ /* normalize object dir with no trailing slash */
+ ctx->obj_dir = xmallocz(strlen(obj_dir) + 1);
+ normalize_path_copy(ctx->obj_dir, obj_dir);
+ len = strlen(ctx->obj_dir);
+ if (len && ctx->obj_dir[len - 1] == '/')
+ ctx->obj_dir[len - 1] = 0;
+
+ ctx->append = flags & COMMIT_GRAPH_APPEND ? 1 : 0;
+ ctx->report_progress = flags & COMMIT_GRAPH_PROGRESS ? 1 : 0;
+ ctx->split = flags & COMMIT_GRAPH_SPLIT ? 1 : 0;
+ ctx->split_opts = split_opts;
+
+ if (ctx->split) {
+ struct commit_graph *g;
+ prepare_commit_graph(ctx->r);
+
+ g = ctx->r->objects->commit_graph;
+
+ while (g) {
+ ctx->num_commit_graphs_before++;
+ g = g->base_graph;
+ }
+
+ if (ctx->num_commit_graphs_before) {
+ ALLOC_ARRAY(ctx->commit_graph_filenames_before, ctx->num_commit_graphs_before);
+ i = ctx->num_commit_graphs_before;
+ g = ctx->r->objects->commit_graph;
+
+ while (g) {
+ ctx->commit_graph_filenames_before[--i] = xstrdup(g->filename);
+ g = g->base_graph;
+ }
+ }
+ }
+
+ ctx->approx_nr_objects = approximate_object_count();
+ ctx->oids.alloc = ctx->approx_nr_objects / 32;
+
+ if (ctx->split && split_opts && ctx->oids.alloc > split_opts->max_commits)
+ ctx->oids.alloc = split_opts->max_commits;
+
+ if (ctx->append) {
+ prepare_commit_graph_one(ctx->r, ctx->obj_dir);
+ if (ctx->r->objects->commit_graph)
+ ctx->oids.alloc += ctx->r->objects->commit_graph->num_commits;
+ }
+
+ if (ctx->oids.alloc < 1024)
+ ctx->oids.alloc = 1024;
+ ALLOC_ARRAY(ctx->oids.list, ctx->oids.alloc);
+
+ if (ctx->append && ctx->r->objects->commit_graph) {
+ struct commit_graph *g = ctx->r->objects->commit_graph;
+ for (i = 0; i < g->num_commits; i++) {
+ const unsigned char *hash = g->chunk_oid_lookup + g->hash_len * i;
+ hashcpy(ctx->oids.list[ctx->oids.nr++].hash, hash);
+ }
+ }
+
+ if (pack_indexes) {
+ if ((res = fill_oids_from_packs(ctx, pack_indexes)))
+ goto cleanup;
+ }
+
+ if (commit_hex)
+ fill_oids_from_commit_hex(ctx, commit_hex);
+
+ if (!pack_indexes && !commit_hex)
+ fill_oids_from_all_packs(ctx);
+
+ close_reachable(ctx);
+
+ count_distinct = count_distinct_commits(ctx);
+
+ if (count_distinct >= GRAPH_EDGE_LAST_MASK) {
+ error(_("the commit graph format cannot write %d commits"), count_distinct);
+ res = -1;
+ goto cleanup;
+ }
+
+ ctx->commits.alloc = count_distinct;
+ ALLOC_ARRAY(ctx->commits.list, ctx->commits.alloc);
+
+ copy_oids_to_commits(ctx);
+
+ if (ctx->commits.nr >= GRAPH_EDGE_LAST_MASK) {
+ error(_("too many commits to write graph"));
+ res = -1;
+ goto cleanup;
+ }
+
+ if (!ctx->commits.nr)
+ goto cleanup;
+
+ if (ctx->split) {
+ split_graph_merge_strategy(ctx);
+
+ merge_commit_graphs(ctx);
+ } else
+ ctx->num_commit_graphs_after = 1;
+
+ compute_generation_numbers(ctx);
+
+ res = write_commit_graph_file(ctx);
+
+ if (ctx->split)
+ mark_commit_graphs(ctx);
+
+ expire_commit_graphs(ctx);
+
+cleanup:
+ free(ctx->graph_name);
+ free(ctx->commits.list);
+ free(ctx->oids.list);
+ free(ctx->obj_dir);
+
+ if (ctx->commit_graph_filenames_after) {
+ for (i = 0; i < ctx->num_commit_graphs_after; i++) {
+ free(ctx->commit_graph_filenames_after[i]);
+ free(ctx->commit_graph_hash_after[i]);
+ }
+
+ for (i = 0; i < ctx->num_commit_graphs_before; i++)
+ free(ctx->commit_graph_filenames_before[i]);
+
+ free(ctx->commit_graph_filenames_after);
+ free(ctx->commit_graph_filenames_before);
+ free(ctx->commit_graph_hash_after);
+ }
+
+ free(ctx);
+
+ return res;
}
#define VERIFY_COMMIT_GRAPH_ERROR_HASH 2
@@ -1136,7 +1916,7 @@ static void graph_report(const char *fmt, ...)
#define GENERATION_ZERO_EXISTS 1
#define GENERATION_NUMBER_EXISTS 2
-int verify_commit_graph(struct repository *r, struct commit_graph *g)
+int verify_commit_graph(struct repository *r, struct commit_graph *g, int flags)
{
uint32_t i, cur_fanout_pos = 0;
struct object_id prev_oid, cur_oid, checksum;
@@ -1144,6 +1924,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
struct hashfile *f;
int devnull;
struct progress *progress = NULL;
+ int local_error = 0;
if (!g) {
graph_report("no commit-graph file loaded");
@@ -1214,7 +1995,7 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
hashcpy(cur_oid.hash, g->chunk_oid_lookup + g->hash_len * i);
graph_commit = lookup_commit(r, &cur_oid);
- odb_commit = (struct commit *)create_object(r, cur_oid.hash, alloc_commit_node(r));
+ odb_commit = (struct commit *)create_object(r, &cur_oid, alloc_commit_node(r));
if (parse_commit_internal(odb_commit, 0, 0)) {
graph_report(_("failed to parse commit %s from object database for commit-graph"),
oid_to_hex(&cur_oid));
@@ -1238,6 +2019,9 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
break;
}
+ /* parse parent in case it is in a base graph */
+ parse_commit_in_graph_one(r, g, graph_parents->item);
+
if (!oideq(&graph_parents->item->object.oid, &odb_parents->item->object.oid))
graph_report(_("commit-graph parent for %s is %s != %s"),
oid_to_hex(&cur_oid),
@@ -1289,7 +2073,12 @@ int verify_commit_graph(struct repository *r, struct commit_graph *g)
}
stop_progress(&progress);
- return verify_commit_graph_error;
+ local_error = verify_commit_graph_error;
+
+ if (!(flags & COMMIT_GRAPH_VERIFY_SHALLOW) && g->base_graph)
+ local_error |= verify_commit_graph(r, g->base_graph, flags);
+
+ return local_error;
}
void free_commit_graph(struct commit_graph *g)
@@ -1301,5 +2090,6 @@ void free_commit_graph(struct commit_graph *g)
g->data = NULL;
close(g->graph_fd);
}
+ free(g->filename);
free(g);
}
diff --git a/commit-graph.h b/commit-graph.h
index 7dfb8c8..df9a3b2 100644
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -47,15 +47,21 @@ struct commit_graph {
unsigned char num_chunks;
uint32_t num_commits;
struct object_id oid;
+ char *filename;
+ const char *obj_dir;
+
+ uint32_t num_commits_in_base;
+ struct commit_graph *base_graph;
const uint32_t *chunk_oid_fanout;
const unsigned char *chunk_oid_lookup;
const unsigned char *chunk_commit_data;
const unsigned char *chunk_extra_edges;
+ const unsigned char *chunk_base_graphs;
};
struct commit_graph *load_commit_graph_one_fd_st(int fd, struct stat *st);
-
+struct commit_graph *read_commit_graph_one(struct repository *r, const char *obj_dir);
struct commit_graph *parse_commit_graph(void *graph_map, int fd,
size_t graph_size);
@@ -65,16 +71,35 @@ struct commit_graph *parse_commit_graph(void *graph_map, int fd,
*/
int generation_numbers_enabled(struct repository *r);
-void write_commit_graph_reachable(const char *obj_dir, int append,
- int report_progress);
-void write_commit_graph(const char *obj_dir,
- struct string_list *pack_indexes,
- struct string_list *commit_hex,
- int append, int report_progress);
+#define COMMIT_GRAPH_APPEND (1 << 0)
+#define COMMIT_GRAPH_PROGRESS (1 << 1)
+#define COMMIT_GRAPH_SPLIT (1 << 2)
+
+struct split_commit_graph_opts {
+ int size_multiple;
+ int max_commits;
+ timestamp_t expire_time;
+};
+
+/*
+ * The write_commit_graph* methods return zero on success
+ * and a negative value on failure. Note that if the repository
+ * is not compatible with the commit-graph feature, then the
+ * methods will return 0 without writing a commit-graph.
+ */
+int write_commit_graph_reachable(const char *obj_dir, unsigned int flags,
+ const struct split_commit_graph_opts *split_opts);
+int write_commit_graph(const char *obj_dir,
+ struct string_list *pack_indexes,
+ struct string_list *commit_hex,
+ unsigned int flags,
+ const struct split_commit_graph_opts *split_opts);
+
+#define COMMIT_GRAPH_VERIFY_SHALLOW (1 << 0)
-int verify_commit_graph(struct repository *r, struct commit_graph *g);
+int verify_commit_graph(struct repository *r, struct commit_graph *g, int flags);
-void close_commit_graph(struct repository *);
+void close_commit_graph(struct raw_object_store *);
void free_commit_graph(struct commit_graph *);
#endif
diff --git a/commit.c b/commit.c
index 8fa1883..a98de16 100644
--- a/commit.c
+++ b/commit.c
@@ -57,10 +57,9 @@ struct commit *lookup_commit_or_die(const struct object_id *oid, const char *ref
struct commit *lookup_commit(struct repository *r, const struct object_id *oid)
{
- struct object *obj = lookup_object(r, oid->hash);
+ struct object *obj = lookup_object(r, oid);
if (!obj)
- return create_object(r, oid->hash,
- alloc_commit_node(r));
+ return create_object(r, oid, alloc_commit_node(r));
return object_as_type(r, obj, OBJ_COMMIT, 0);
}
@@ -449,7 +448,7 @@ int parse_commit_buffer(struct repository *r, struct commit *item, const void *b
item->date = parse_commit_date(bufptr, tail);
if (check_graph)
- load_commit_graph_info(the_repository, item);
+ load_commit_graph_info(r, item);
return 0;
}
diff --git a/compat/mingw.c b/compat/mingw.c
index 9b6d240..d991346 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1407,7 +1407,7 @@ static pid_t mingw_spawnve_fd(const char *cmd, const char **argv, char **deltaen
do_unset_environment_variables();
/* Determine whether or not we are associated to a console */
- cons = CreateFile("CONOUT$", GENERIC_WRITE,
+ cons = CreateFileW(L"CONOUT$", GENERIC_WRITE,
FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, NULL);
if (cons == INVALID_HANDLE_VALUE) {
@@ -1553,7 +1553,10 @@ static int try_shell_exec(const char *cmd, char *const *argv)
if (prog) {
int exec_id;
int argc = 0;
- const char **argv2;
+#ifndef _MSC_VER
+ const
+#endif
+ char **argv2;
while (argv[argc]) argc++;
ALLOC_ARRAY(argv2, argc + 1);
argv2[0] = (char *)cmd; /* full path to the script file */
@@ -1946,13 +1949,19 @@ struct passwd *getpwuid(int uid)
static unsigned initialized;
static char user_name[100];
static struct passwd *p;
+ wchar_t buf[100];
DWORD len;
if (initialized)
return p;
- len = sizeof(user_name);
- if (!GetUserName(user_name, &len)) {
+ len = ARRAY_SIZE(buf);
+ if (!GetUserNameW(buf, &len)) {
+ initialized = 1;
+ return NULL;
+ }
+
+ if (xwcstoutf(user_name, buf, sizeof(user_name)) < 0) {
initialized = 1;
return NULL;
}
@@ -2116,8 +2125,33 @@ int mingw_raise(int sig)
sigint_fn(SIGINT);
return 0;
+#if defined(_MSC_VER)
+ case SIGILL:
+ case SIGFPE:
+ case SIGSEGV:
+ case SIGTERM:
+ case SIGBREAK:
+ case SIGABRT:
+ case SIGABRT_COMPAT:
+ /*
+ * The <signal.h> header in the MS C Runtime defines 8 signals
+ * as being supported on the platform. Anything else causes an
+ * "Invalid signal or error" (which in DEBUG builds causes the
+ * Abort/Retry/Ignore dialog). We by-pass the CRT for things we
+ * already know will fail.
+ */
+ return raise(sig);
+ default:
+ errno = EINVAL;
+ return -1;
+
+#else
+
default:
return raise(sig);
+
+#endif
+
}
}
@@ -2299,20 +2333,39 @@ static void setup_windows_environment(void)
/* simulate TERM to enable auto-color (see color.c) */
if (!getenv("TERM"))
setenv("TERM", "cygwin", 1);
+
+ /* calculate HOME if not set */
+ if (!getenv("HOME")) {
+ /*
+ * try $HOMEDRIVE$HOMEPATH - the home share may be a network
+ * location, thus also check if the path exists (i.e. is not
+ * disconnected)
+ */
+ if ((tmp = getenv("HOMEDRIVE"))) {
+ struct strbuf buf = STRBUF_INIT;
+ strbuf_addstr(&buf, tmp);
+ if ((tmp = getenv("HOMEPATH"))) {
+ strbuf_addstr(&buf, tmp);
+ if (is_directory(buf.buf))
+ setenv("HOME", buf.buf, 1);
+ else
+ tmp = NULL; /* use $USERPROFILE */
+ }
+ strbuf_release(&buf);
+ }
+ /* use $USERPROFILE if the home share is not available */
+ if (!tmp && (tmp = getenv("USERPROFILE")))
+ setenv("HOME", tmp, 1);
+ }
}
+#if !defined(_MSC_VER)
/*
* Disable MSVCRT command line wildcard expansion (__getmainargs called from
* mingw startup code, see init.c in mingw runtime).
*/
int _CRT_glob = 0;
-
-typedef struct {
- int newmode;
-} _startupinfo;
-
-extern int __wgetmainargs(int *argc, wchar_t ***argv, wchar_t ***env, int glob,
- _startupinfo *si);
+#endif
static NORETURN void die_startup(void)
{
@@ -2390,21 +2443,40 @@ static void maybe_redirect_std_handles(void)
GENERIC_WRITE, FILE_FLAG_NO_BUFFERING);
}
-void mingw_startup(void)
+#ifdef _MSC_VER
+#ifdef _DEBUG
+#include <crtdbg.h>
+#endif
+#endif
+
+/*
+ * We implement wmain() and compile with -municode, which would
+ * normally ignore main(), but we call the latter from the former
+ * so that we can handle non-ASCII command-line parameters
+ * appropriately.
+ *
+ * To be more compatible with the core git code, we convert
+ * argv into UTF8 and pass them directly to main().
+ */
+int wmain(int argc, const wchar_t **wargv)
{
- int i, maxlen, argc;
- char *buffer;
- wchar_t **wenv, **wargv;
- _startupinfo si;
+ int i, maxlen, exit_status;
+ char *buffer, **save;
+ const char **argv;
trace2_initialize_clock();
- maybe_redirect_std_handles();
+#ifdef _MSC_VER
+#ifdef _DEBUG
+ _CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_DEBUG);
+#endif
- /* get wide char arguments and environment */
- si.newmode = 0;
- if (__wgetmainargs(&argc, &wargv, &wenv, _CRT_glob, &si) < 0)
- die_startup();
+#ifdef USE_MSVC_CRTDBG
+ _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
+#endif
+#endif
+
+ maybe_redirect_std_handles();
/* determine size of argv and environ conversion buffer */
maxlen = wcslen(wargv[0]);
@@ -2415,9 +2487,16 @@ void mingw_startup(void)
maxlen = 3 * maxlen + 1;
buffer = malloc_startup(maxlen);
- /* convert command line arguments and environment to UTF-8 */
+ /*
+ * Create a UTF-8 version of w_argv. Also create a "save" copy
+ * to remember all the string pointers because parse_options()
+ * will remove claimed items from the argv that we pass down.
+ */
+ ALLOC_ARRAY(argv, argc + 1);
+ ALLOC_ARRAY(save, argc + 1);
for (i = 0; i < argc; i++)
- __argv[i] = wcstoutfdup_startup(buffer, wargv[i], maxlen);
+ argv[i] = save[i] = wcstoutfdup_startup(buffer, wargv[i], maxlen);
+ argv[i] = save[i] = NULL;
free(buffer);
/* fix Windows specific environment settings */
@@ -2436,6 +2515,16 @@ void mingw_startup(void)
/* initialize Unicode console */
winansi_init();
+
+ /* invoke the real main() using our utf8 version of argv. */
+ exit_status = main(argc, argv);
+
+ for (i = 0; i < argc; i++)
+ free(save[i]);
+ free(save);
+ free(argv);
+
+ return exit_status;
}
int uname(struct utsname *buf)
diff --git a/compat/mingw.h b/compat/mingw.h
index 593bdbf..a03e40e 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -352,11 +352,13 @@ static inline int getrlimit(int resource, struct rlimit *rlp)
#ifndef __MINGW64_VERSION_MAJOR
#define off_t off64_t
#define lseek _lseeki64
+#ifndef _MSC_VER
struct timespec {
time_t tv_sec;
long tv_nsec;
};
#endif
+#endif
struct mingw_stat {
_dev_t st_dev;
@@ -562,18 +564,18 @@ int xwcstoutf(char *utf, const wchar_t *wcs, size_t utflen);
extern CRITICAL_SECTION pinfo_cs;
/*
- * A replacement of main() that adds win32 specific initialization.
+ * Git, like most portable C applications, implements a main() function. On
+ * Windows, this main() function would receive parameters encoded in the
+ * current locale, but Git for Windows would prefer UTF-8 encoded parameters.
+ *
+ * To make that happen, we still declare main() here, and then declare and
+ * implement wmain() (which is the Unicode variant of main()) and compile with
+ * -municode. This wmain() function reencodes the parameters from UTF-16 to
+ * UTF-8 format, sets up a couple of other things as required on Windows, and
+ * then hands off to the main() function.
*/
-
-void mingw_startup(void);
-#define main(c,v) dummy_decl_mingw_main(void); \
-static int mingw_main(c,v); \
-int main(int argc, const char **argv) \
-{ \
- mingw_startup(); \
- return mingw_main(__argc, (void *)__argv); \
-} \
-static int mingw_main(c,v)
+int wmain(int argc, const wchar_t **w_argv);
+int main(int argc, const char **argv);
/*
* Used by Pthread API implementation for Windows
diff --git a/compat/msvc.h b/compat/msvc.h
index 29a8ce8..1d7a8c6 100644
--- a/compat/msvc.h
+++ b/compat/msvc.h
@@ -6,6 +6,10 @@
#include <malloc.h>
#include <io.h>
+#pragma warning(disable: 4018) /* signed/unsigned comparison */
+#pragma warning(disable: 4244) /* type conversion, possible loss of data */
+#pragma warning(disable: 4090) /* 'function' : different 'const' qualifiers (ALLOC_GROW etc.)*/
+
/* porting function */
#define inline __inline
#define __inline__ __inline
@@ -18,6 +22,12 @@
#undef ERROR
+#define ftello _ftelli64
+
+typedef int sigset_t;
+/* open for reading, writing, or both (not in fcntl.h) */
+#define O_ACCMODE (_O_RDONLY | _O_WRONLY | _O_RDWR)
+
#include "compat/mingw.h"
#endif
diff --git a/compat/obstack.h b/compat/obstack.h
index ced94d0..ae36ed6 100644
--- a/compat/obstack.h
+++ b/compat/obstack.h
@@ -496,7 +496,7 @@ __extension__ \
( (h)->temp.tempint = (char *) (obj) - (char *) (h)->chunk, \
((((h)->temp.tempint > 0 \
&& (h)->temp.tempint < (h)->chunk_limit - (char *) (h)->chunk)) \
- ? (int) ((h)->next_free = (h)->object_base \
+ ? (ptrdiff_t) ((h)->next_free = (h)->object_base \
= (h)->temp.tempint + (char *) (h)->chunk) \
: (((obstack_free) ((h), (h)->temp.tempint + (char *) (h)->chunk), 0), 0)))
diff --git a/compat/poll/poll.c b/compat/poll/poll.c
index 4459408..0e95dd4 100644
--- a/compat/poll/poll.c
+++ b/compat/poll/poll.c
@@ -149,8 +149,8 @@ win32_compute_revents (HANDLE h, int *p_sought)
case FILE_TYPE_PIPE:
if (!once_only)
{
- NtQueryInformationFile = (PNtQueryInformationFile)
- GetProcAddress (GetModuleHandle ("ntdll.dll"),
+ NtQueryInformationFile = (PNtQueryInformationFile)(void (*)(void))
+ GetProcAddress (GetModuleHandleW (L"ntdll.dll"),
"NtQueryInformationFile");
once_only = TRUE;
}
diff --git a/compat/vcbuild/.gitignore b/compat/vcbuild/.gitignore
new file mode 100644
index 0000000..8f8b794
--- /dev/null
+++ b/compat/vcbuild/.gitignore
@@ -0,0 +1,3 @@
+/vcpkg/
+/MSVC-DEFS-GEN
+/VCPKG-DEFS
diff --git a/compat/vcbuild/README b/compat/vcbuild/README
index 60fd873..b633e7d 100644
--- a/compat/vcbuild/README
+++ b/compat/vcbuild/README
@@ -1,3 +1,42 @@
+The Steps to Build Git with VS2015 or VS2017 from the command line.
+
+1. Install the "vcpkg" open source package manager and build essential
+ third-party libraries. The steps for this have been captured in a
+ set of convenience scripts. These can be run from a stock Command
+ Prompt or from an SDK bash window:
+
+ $ cd <repo_root>
+ $ ./compat/vcbuild/vcpkg_install.bat
+
+ The vcpkg tools and all of the third-party sources will be installed
+ in this folder:
+ <repo_root>/compat/vcbuild/vcpkg/
+
+ A file will be created with a set of Makefile macros pointing to a
+ unified "include", "lib", and "bin" directory (release and debug) for
+ all of the required packages. This file will be included by the main
+ Makefile:
+ <repo_root>/compat/vcbuild/MSVC-DEFS-GEN
+
+2. OPTIONALLY copy the third-party *.dll and *.pdb files into the repo
+ root to make it easier to run and debug git.exe without having to
+ manipulate your PATH. This is especially true for debug sessions in
+ Visual Studio.
+
+ Use ONE of the following forms which should match how you want to
+ compile git.exe.
+
+ $ ./compat/vcbuild/vcpkg_copy_packages.bat debug
+ $ ./compat/vcbuild/vcpkg_copy_packages.bat release
+
+3. Build git using MSVC from an SDK bash window using one of the
+ following commands:
+
+ $ make MSVC=1
+ $ make MSVC=1 DEBUG=1
+
+================================================================
+
The Steps of Build Git with VS2008
1. You need the build environment, which contains the Git dependencies
diff --git a/compat/vcbuild/find_vs_env.bat b/compat/vcbuild/find_vs_env.bat
new file mode 100644
index 0000000..40194dd
--- /dev/null
+++ b/compat/vcbuild/find_vs_env.bat
@@ -0,0 +1,168 @@
+@ECHO OFF
+REM ================================================================
+REM You can use either GCC (the default) or MSVC to build git
+REM using the GIT-SDK command line tools.
+REM $ make
+REM $ make MSVC=1
+REM
+REM GIT-SDK BASH windows inherit environment variables with all of
+REM the bin/lib/include paths for GCC. It DOES NOT inherit values
+REM for the corresponding MSVC tools.
+REM
+REM During normal (non-git) Windows development, you launch one
+REM of the provided "developer command prompts" to set environment
+REM variables for the MSVC tools.
+REM
+REM Therefore, to allow MSVC command line builds of git from BASH
+REM and MAKE, we must blend these two different worlds. This script
+REM attempts to do that.
+REM ================================================================
+REM This BAT file starts in a plain (non-developer) command prompt,
+REM searches for the "best" commmand prompt setup script, installs
+REM it into the current CMD process, and exports the various MSVC
+REM environment variables for use by MAKE.
+REM
+REM The output of this script should be written to a make "include
+REM file" and referenced by the top-level Makefile.
+REM
+REM See "config.mak.uname" (look for compat/vcbuild/MSVC-DEFS-GEN).
+REM ================================================================
+REM The provided command prompts are custom to each VS release and
+REM filled with lots of internal knowledge (such as Registry settings);
+REM even their names vary by release, so it is not appropriate for us
+REM to look inside them. Rather, just run them in a subordinate
+REM process and extract the settings we need.
+REM ================================================================
+REM
+REM Current (VS2017 and beyond)
+REM -------------------
+REM Visual Studio 2017 introduced a new installation layout and
+REM support for side-by-side installation of multiple versions of
+REM VS2017. Furthermore, these can all coexist with installations
+REM of previous versions of VS (which have a completely different
+REM layout on disk).
+REM
+REM VS2017 Update 2 introduced a "vswhere.exe" command:
+REM https://github.com/Microsoft/vswhere
+REM https://blogs.msdn.microsoft.com/heaths/2017/02/25/vswhere-available/
+REM https://blogs.msdn.microsoft.com/vcblog/2017/03/06/finding-the-visual-c-compiler-tools-in-visual-studio-2017/
+REM
+REM VS2015
+REM ------
+REM Visual Studio 2015 uses the traditional VcVarsAll.
+REM
+REM Earlier Versions
+REM ----------------
+REM Currently unsupported.
+REM
+REM ================================================================
+REM Note: Throughout this script we use "dir <path> && <cmd>" rather
+REM than "if exist <path>" because of script problems with pathnames
+REM containing spaces.
+REM ================================================================
+
+REM Sanitize PATH to prevent git-sdk paths from confusing "wmic.exe"
+REM (called internally in some of the system BAT files).
+SET PATH=%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;
+
+REM ================================================================
+
+:current
+ SET vs_where=C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe
+ dir "%vs_where%" >nul 2>nul && GOTO have_vs_where
+ GOTO not_2017
+
+:have_vs_where
+ REM Try to use VsWhere to get the location of VsDevCmd.
+
+ REM Keep VsDevCmd from cd'ing away.
+ SET VSCMD_START_DIR=.
+
+ REM Get the root of the VS product installation.
+ FOR /F "usebackq tokens=*" %%i IN (`"%vs_where%" -latest -requires Microsoft.VisualStudio.Workload.NativeDesktop -property installationPath`) DO @SET vs_ip=%%i
+
+ SET vs_devcmd=%vs_ip%\Common7\Tools\VsDevCmd.bat
+ dir "%vs_devcmd%" >nul 2>nul && GOTO have_vs_devcmd
+ GOTO not_2017
+
+:have_vs_devcmd
+ REM Use VsDevCmd to setup the environment of this process.
+ REM Setup CL for building 64-bit apps using 64-bit tools.
+ @call "%vs_devcmd%" -no_logo -arch=x64 -host_arch=x64
+
+ SET tgt=%VSCMD_ARG_TGT_ARCH%
+
+ SET mn=%VCToolsInstallDir%
+ SET msvc_includes=-I"%mn%INCLUDE"
+ SET msvc_libs=-L"%mn%lib\%tgt%"
+ SET msvc_bin_dir=%mn%bin\Host%VSCMD_ARG_HOST_ARCH%\%tgt%
+
+ SET sdk_dir=%WindowsSdkDir%
+ SET sdk_ver=%WindowsSDKVersion%
+ SET si=%sdk_dir%Include\%sdk_ver%
+ SET sdk_includes=-I"%si%ucrt" -I"%si%um" -I"%si%shared"
+ SET sl=%sdk_dir%lib\%sdk_ver%
+ SET sdk_libs=-L"%sl%ucrt\%tgt%" -L"%sl%um\%tgt%"
+
+ SET vs_ver=%VisualStudioVersion%
+
+ GOTO print_vars
+
+REM ================================================================
+
+:not_2017
+ REM See if VS2015 is installed.
+
+ SET vs_2015_bat=C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat
+ dir "%vs_2015_bat%" >nul 2>nul && GOTO have_vs_2015
+ GOTO not_2015
+
+:have_vs_2015
+ REM Use VcVarsAll like the "x64 Native" command prompt.
+ REM Setup CL for building 64-bit apps using 64-bit tools.
+ @call "%vs_2015_bat%" amd64
+
+ REM Note that in VS2015 they use "x64" in some contexts and "amd64" in others.
+ SET mn=C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\
+ SET msvc_includes=-I"%mn%INCLUDE"
+ SET msvc_libs=-L"%mn%lib\amd64"
+ SET msvc_bin_dir=%mn%bin\amd64
+
+ SET sdk_dir=%WindowsSdkDir%
+ SET sdk_ver=%WindowsSDKVersion%
+ SET si=%sdk_dir%Include\%sdk_ver%
+ SET sdk_includes=-I"%si%ucrt" -I"%si%um" -I"%si%shared" -I"%si%winrt"
+ SET sl=%sdk_dir%lib\%sdk_ver%
+ SET sdk_libs=-L"%sl%ucrt\x64" -L"%sl%um\x64"
+
+ SET vs_ver=%VisualStudioVersion%
+
+ GOTO print_vars
+
+REM ================================================================
+
+:not_2015
+ echo "ERROR: unsupported VS version (older than VS2015)" >&2
+ EXIT /B 1
+
+REM ================================================================
+
+:print_vars
+ REM Dump the essential vars to stdout to allow the main
+ REM Makefile to include it. See config.mak.uname.
+ REM Include DOS-style and BASH-style path for bin dir.
+
+ echo msvc_bin_dir=%msvc_bin_dir%
+ SET X1=%msvc_bin_dir:C:=/C%
+ SET X2=%X1:\=/%
+ echo msvc_bin_dir_msys=%X2%
+
+ echo msvc_includes=%msvc_includes%
+ echo msvc_libs=%msvc_libs%
+
+ echo sdk_includes=%sdk_includes%
+ echo sdk_libs=%sdk_libs%
+
+ echo vs_ver=%vs_ver%
+
+ EXIT /B 0
diff --git a/compat/vcbuild/scripts/clink.pl b/compat/vcbuild/scripts/clink.pl
index a87d0da..c7b021b 100755
--- a/compat/vcbuild/scripts/clink.pl
+++ b/compat/vcbuild/scripts/clink.pl
@@ -12,32 +12,62 @@
use strict;
my @args = ();
my @cflags = ();
+my @lflags = ();
my $is_linking = 0;
+my $is_debug = 0;
while (@ARGV) {
my $arg = shift @ARGV;
- if ("$arg" =~ /^-[DIMGO]/) {
+ if ("$arg" eq "-DDEBUG") {
+ # Some vcpkg-based libraries have different names for release
+ # and debug versions. This hack assumes that -DDEBUG comes
+ # before any "-l*" flags.
+ $is_debug = 1;
+ }
+ if ("$arg" =~ /^-[DIMGOZ]/) {
push(@cflags, $arg);
} elsif ("$arg" eq "-o") {
my $file_out = shift @ARGV;
if ("$file_out" =~ /exe$/) {
$is_linking = 1;
+ # Create foo.exe and foo.pdb
push(@args, "-OUT:$file_out");
} else {
+ # Create foo.o and foo.o.pdb
push(@args, "-Fo$file_out");
+ push(@args, "-Fd$file_out.pdb");
}
} elsif ("$arg" eq "-lz") {
+ if ($is_debug) {
+ push(@args, "zlibd.lib");
+ } else{
push(@args, "zlib.lib");
+ }
} elsif ("$arg" eq "-liconv") {
- push(@args, "iconv.lib");
+ push(@args, "libiconv.lib");
} elsif ("$arg" eq "-lcrypto") {
push(@args, "libeay32.lib");
} elsif ("$arg" eq "-lssl") {
push(@args, "ssleay32.lib");
} elsif ("$arg" eq "-lcurl") {
- push(@args, "libcurl.lib");
+ my $lib = "";
+ # Newer vcpkg definitions call this libcurl_imp.lib; Do we
+ # need to use that instead?
+ foreach my $flag (@lflags) {
+ if ($flag =~ /^-LIBPATH:(.*)/) {
+ foreach my $l ("libcurl_imp.lib", "libcurl.lib") {
+ if (-f "$1/$l") {
+ $lib = $l;
+ last;
+ }
+ }
+ }
+ }
+ push(@args, $lib);
+ } elsif ("$arg" eq "-lexpat") {
+ push(@args, "expat.lib");
} elsif ("$arg" =~ /^-L/ && "$arg" ne "-LTCG") {
$arg =~ s/^-L/-LIBPATH:/;
- push(@args, $arg);
+ push(@lflags, $arg);
} elsif ("$arg" =~ /^-R/) {
# eat
} else {
@@ -45,10 +75,11 @@ while (@ARGV) {
}
}
if ($is_linking) {
+ push(@args, @lflags);
unshift(@args, "link.exe");
} else {
unshift(@args, "cl.exe");
push(@args, @cflags);
}
-#printf("**** @args\n");
+printf(STDERR "**** @args\n\n\n") if (!defined($ENV{'QUIET_GEN'}));
exit (system(@args) != 0);
diff --git a/compat/vcbuild/vcpkg_copy_dlls.bat b/compat/vcbuild/vcpkg_copy_dlls.bat
new file mode 100644
index 0000000..13661c1
--- /dev/null
+++ b/compat/vcbuild/vcpkg_copy_dlls.bat
@@ -0,0 +1,39 @@
+@ECHO OFF
+REM ================================================================
+REM This script is an optional step. It copies the *.dll and *.pdb
+REM files (created by vcpkg_install.bat) into the top-level directory
+REM of the repo so that you can type "./git.exe" and find them without
+REM having to fixup your PATH.
+REM
+REM NOTE: Because the names of some DLL files change between DEBUG and
+REM NOTE: RELEASE builds when built using "vcpkg.exe", you will need
+REM NOTE: to copy up the corresponding version.
+REM ================================================================
+
+ SETLOCAL EnableDelayedExpansion
+
+ @FOR /F "delims=" %%D IN ("%~dp0") DO @SET cwd=%%~fD
+ cd %cwd%
+
+ SET arch=x64-windows
+ SET inst=%cwd%vcpkg\installed\%arch%
+
+ IF [%1]==[release] (
+ echo Copying RELEASE mode DLLs to repo root...
+ ) ELSE IF [%1]==[debug] (
+ SET inst=%inst%\debug
+ echo Copying DEBUG mode DLLs to repo root...
+ ) ELSE (
+ echo ERROR: Invalid argument.
+ echo Usage: %~0 release
+ echo Usage: %~0 debug
+ EXIT /B 1
+ )
+
+ xcopy /e/s/v/y %inst%\bin\*.dll ..\..\
+ xcopy /e/s/v/y %inst%\bin\*.pdb ..\..\
+
+ xcopy /e/s/v/y %inst%\bin\*.dll ..\..\t\helper\
+ xcopy /e/s/v/y %inst%\bin\*.pdb ..\..\t\helper\
+
+ EXIT /B 0
diff --git a/compat/vcbuild/vcpkg_install.bat b/compat/vcbuild/vcpkg_install.bat
new file mode 100644
index 0000000..ebd0bad
--- /dev/null
+++ b/compat/vcbuild/vcpkg_install.bat
@@ -0,0 +1,80 @@
+@ECHO OFF
+REM ================================================================
+REM This script installs the "vcpkg" source package manager and uses
+REM it to build the third-party libraries that git requires when it
+REM is built using MSVC.
+REM
+REM [1] Install VCPKG.
+REM [a] Create <root>/compat/vcbuild/vcpkg/
+REM [b] Download "vcpkg".
+REM [c] Compile using the currently installed version of VS.
+REM [d] Create <root>/compat/vcbuild/vcpkg/vcpkg.exe
+REM
+REM [2] Install third-party libraries.
+REM [a] Download each (which may also install CMAKE).
+REM [b] Compile in RELEASE mode and install in:
+REM vcpkg/installed/<arch>/{bin,lib}
+REM [c] Compile in DEBUG mode and install in:
+REM vcpkg/installed/<arch>/debug/{bin,lib}
+REM [d] Install headers in:
+REM vcpkg/installed/<arch>/include
+REM
+REM [3] Create a set of MAKE definitions for the top-level
+REM Makefile to allow "make MSVC=1" to find the above
+REM third-party libraries.
+REM [a] Write vcpkg/VCPGK-DEFS
+REM
+REM https://blogs.msdn.microsoft.com/vcblog/2016/09/19/vcpkg-a-tool-to-acquire-and-build-c-open-source-libraries-on-windows/
+REM https://github.com/Microsoft/vcpkg
+REM https://vcpkg.readthedocs.io/en/latest/
+REM ================================================================
+
+ SETLOCAL EnableDelayedExpansion
+
+ @FOR /F "delims=" %%D IN ("%~dp0") DO @SET cwd=%%~fD
+ cd %cwd%
+
+ dir vcpkg\vcpkg.exe >nul 2>nul && GOTO :install_libraries
+
+ echo Fetching vcpkg in %cwd%vcpkg
+ git.exe clone https://github.com/Microsoft/vcpkg vcpkg
+ IF ERRORLEVEL 1 ( EXIT /B 1 )
+
+ cd vcpkg
+ echo Building vcpkg
+ powershell -exec bypass scripts\bootstrap.ps1
+ IF ERRORLEVEL 1 ( EXIT /B 1 )
+
+ echo Successfully installed %cwd%vcpkg\vcpkg.exe
+
+:install_libraries
+ SET arch=x64-windows
+
+ echo Installing third-party libraries...
+ FOR %%i IN (zlib expat libiconv openssl libssh2 curl) DO (
+ cd %cwd%vcpkg
+ IF NOT EXIST "packages\%%i_%arch%" CALL :sub__install_one %%i
+ IF ERRORLEVEL 1 ( EXIT /B 1 )
+ )
+
+:install_defines
+ cd %cwd%
+ SET inst=%cwd%vcpkg\installed\%arch%
+
+ echo vcpkg_inc=-I"%inst%\include">VCPKG-DEFS
+ echo vcpkg_rel_lib=-L"%inst%\lib">>VCPKG-DEFS
+ echo vcpkg_rel_bin="%inst%\bin">>VCPKG-DEFS
+ echo vcpkg_dbg_lib=-L"%inst%\debug\lib">>VCPKG-DEFS
+ echo vcpkg_dbg_bin="%inst%\debug\bin">>VCPKG-DEFS
+
+ EXIT /B 0
+
+
+:sub__install_one
+ echo Installing package %1...
+
+ .\vcpkg.exe install %1:%arch%
+ IF ERRORLEVEL 1 ( EXIT /B 1 )
+
+ echo Finished %1
+ goto :EOF
diff --git a/compat/win32/git.manifest b/compat/win32/git.manifest
new file mode 100644
index 0000000..771e3cc
--- /dev/null
+++ b/compat/win32/git.manifest
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+ <assemblyIdentity type="win32" name="Git" version="0.0.0.1" />
+ <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
+ <security>
+ <requestedPrivileges>
+ <requestedExecutionLevel level="asInvoker" uiAccess="false" />
+ </requestedPrivileges>
+ </security>
+ </trustInfo>
+ <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+ <application>
+ <!-- Windows Vista -->
+ <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>
+ <!-- Windows 7 -->
+ <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+ <!-- Windows 8 -->
+ <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+ <!-- Windows 8.1 -->
+ <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+ <!-- Windows 10 -->
+ <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+ </application>
+ </compatibility>
+</assembly>
diff --git a/compat/winansi.c b/compat/winansi.c
index f4f0823..cacd82c 100644
--- a/compat/winansi.c
+++ b/compat/winansi.c
@@ -7,6 +7,7 @@
#include <wingdi.h>
#include <winreg.h>
#include "win32.h"
+#include "win32/lazyload.h"
static int fd_is_interactive[3] = { 0, 0, 0 };
#define FD_CONSOLE 0x1
@@ -41,26 +42,21 @@ typedef struct _CONSOLE_FONT_INFOEX {
#endif
#endif
-typedef BOOL (WINAPI *PGETCURRENTCONSOLEFONTEX)(HANDLE, BOOL,
- PCONSOLE_FONT_INFOEX);
-
static void warn_if_raster_font(void)
{
DWORD fontFamily = 0;
- PGETCURRENTCONSOLEFONTEX pGetCurrentConsoleFontEx;
+ DECLARE_PROC_ADDR(kernel32.dll, BOOL, GetCurrentConsoleFontEx,
+ HANDLE, BOOL, PCONSOLE_FONT_INFOEX);
/* don't bother if output was ascii only */
if (!non_ascii_used)
return;
/* GetCurrentConsoleFontEx is available since Vista */
- pGetCurrentConsoleFontEx = (PGETCURRENTCONSOLEFONTEX) GetProcAddress(
- GetModuleHandle("kernel32.dll"),
- "GetCurrentConsoleFontEx");
- if (pGetCurrentConsoleFontEx) {
+ if (INIT_PROC_ADDR(GetCurrentConsoleFontEx)) {
CONSOLE_FONT_INFOEX cfi;
cfi.cbSize = sizeof(cfi);
- if (pGetCurrentConsoleFontEx(console, 0, &cfi))
+ if (GetCurrentConsoleFontEx(console, 0, &cfi))
fontFamily = cfi.FontFamily;
} else {
/* pre-Vista: check default console font in registry */
@@ -544,7 +540,20 @@ static HANDLE swap_osfhnd(int fd, HANDLE new_handle)
#ifdef DETECT_MSYS_TTY
#include <winternl.h>
+
+#if defined(_MSC_VER)
+
+typedef struct _OBJECT_NAME_INFORMATION
+{
+ UNICODE_STRING Name;
+ WCHAR NameBuffer[0];
+} OBJECT_NAME_INFORMATION, *POBJECT_NAME_INFORMATION;
+
+#define ObjectNameInformation 1
+
+#else
#include <ntstatus.h>
+#endif
static void detect_msys_tty(int fd)
{
@@ -599,7 +608,7 @@ int winansi_isatty(int fd)
void winansi_init(void)
{
int con1, con2;
- char name[32];
+ wchar_t name[32];
/* check if either stdout or stderr is a console output screen buffer */
con1 = is_console(1);
@@ -619,13 +628,15 @@ void winansi_init(void)
}
/* create a named pipe to communicate with the console thread */
- xsnprintf(name, sizeof(name), "\\\\.\\pipe\\winansi%lu", GetCurrentProcessId());
- hwrite = CreateNamedPipe(name, PIPE_ACCESS_OUTBOUND,
+ if (swprintf(name, ARRAY_SIZE(name) - 1, L"\\\\.\\pipe\\winansi%lu",
+ GetCurrentProcessId()) < 0)
+ die("Could not initialize winansi pipe name");
+ hwrite = CreateNamedPipeW(name, PIPE_ACCESS_OUTBOUND,
PIPE_TYPE_BYTE | PIPE_WAIT, 1, BUFFER_SIZE, 0, 0, NULL);
if (hwrite == INVALID_HANDLE_VALUE)
die_lasterr("CreateNamedPipe failed");
- hread = CreateFile(name, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
+ hread = CreateFileW(name, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
if (hread == INVALID_HANDLE_VALUE)
die_lasterr("CreateFile for named pipe failed");
diff --git a/config.c b/config.c
index 296a6d9..ed7f58e 100644
--- a/config.c
+++ b/config.c
@@ -19,6 +19,7 @@
#include "utf8.h"
#include "dir.h"
#include "color.h"
+#include "refs.h"
struct config_source {
struct config_source *prev;
@@ -170,6 +171,12 @@ static int handle_path_include(const char *path, struct config_include_data *inc
return ret;
}
+static void add_trailing_starstar_for_dir(struct strbuf *pat)
+{
+ if (pat->len && is_dir_sep(pat->buf[pat->len - 1]))
+ strbuf_addstr(pat, "**");
+}
+
static int prepare_include_condition_pattern(struct strbuf *pat)
{
struct strbuf path = STRBUF_INIT;
@@ -199,8 +206,7 @@ static int prepare_include_condition_pattern(struct strbuf *pat)
} else if (!is_absolute_path(pat->buf))
strbuf_insert(pat, 0, "**/", 3);
- if (pat->len && is_dir_sep(pat->buf[pat->len - 1]))
- strbuf_addstr(pat, "**");
+ add_trailing_starstar_for_dir(pat);
strbuf_release(&path);
return prefix;
@@ -264,6 +270,25 @@ done:
return ret;
}
+static int include_by_branch(const char *cond, size_t cond_len)
+{
+ int flags;
+ int ret;
+ struct strbuf pattern = STRBUF_INIT;
+ const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, &flags);
+ const char *shortname;
+
+ if (!refname || !(flags & REF_ISSYMREF) ||
+ !skip_prefix(refname, "refs/heads/", &shortname))
+ return 0;
+
+ strbuf_add(&pattern, cond, cond_len);
+ add_trailing_starstar_for_dir(&pattern);
+ ret = !wildmatch(pattern.buf, shortname, WM_PATHNAME);
+ strbuf_release(&pattern);
+ return ret;
+}
+
static int include_condition_is_true(const struct config_options *opts,
const char *cond, size_t cond_len)
{
@@ -272,6 +297,8 @@ static int include_condition_is_true(const struct config_options *opts,
return include_by_gitdir(opts, cond, cond_len, 0);
else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len))
return include_by_gitdir(opts, cond, cond_len, 1);
+ else if (skip_prefix_mem(cond, cond_len, "onbranch:", &cond, &cond_len))
+ return include_by_branch(cond, cond_len);
/* unknown conditionals are always false */
return 0;
@@ -834,22 +861,16 @@ static int git_parse_source(config_fn_t fn, void *data,
return error_return;
}
-static int parse_unit_factor(const char *end, uintmax_t *val)
+static uintmax_t get_unit_factor(const char *end)
{
if (!*end)
return 1;
- else if (!strcasecmp(end, "k")) {
- *val *= 1024;
- return 1;
- }
- else if (!strcasecmp(end, "m")) {
- *val *= 1024 * 1024;
- return 1;
- }
- else if (!strcasecmp(end, "g")) {
- *val *= 1024 * 1024 * 1024;
- return 1;
- }
+ else if (!strcasecmp(end, "k"))
+ return 1024;
+ else if (!strcasecmp(end, "m"))
+ return 1024 * 1024;
+ else if (!strcasecmp(end, "g"))
+ return 1024 * 1024 * 1024;
return 0;
}
@@ -859,19 +880,20 @@ static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max)
char *end;
intmax_t val;
uintmax_t uval;
- uintmax_t factor = 1;
+ uintmax_t factor;
errno = 0;
val = strtoimax(value, &end, 0);
if (errno == ERANGE)
return 0;
- if (!parse_unit_factor(end, &factor)) {
+ factor = get_unit_factor(end);
+ if (!factor) {
errno = EINVAL;
return 0;
}
- uval = labs(val);
- uval *= factor;
- if (uval > max || labs(val) > uval) {
+ uval = val < 0 ? -val : val;
+ if (unsigned_mult_overflows(factor, uval) ||
+ factor * uval > max) {
errno = ERANGE;
return 0;
}
@@ -888,21 +910,23 @@ static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max)
if (value && *value) {
char *end;
uintmax_t val;
- uintmax_t oldval;
+ uintmax_t factor;
errno = 0;
val = strtoumax(value, &end, 0);
if (errno == ERANGE)
return 0;
- oldval = val;
- if (!parse_unit_factor(end, &val)) {
+ factor = get_unit_factor(end);
+ if (!factor) {
errno = EINVAL;
return 0;
}
- if (val > max || oldval > val) {
+ if (unsigned_mult_overflows(factor, val) ||
+ factor * val > max) {
errno = ERANGE;
return 0;
}
+ val *= factor;
*ret = val;
return 1;
}
@@ -949,34 +973,44 @@ int git_parse_ssize_t(const char *value, ssize_t *ret)
NORETURN
static void die_bad_number(const char *name, const char *value)
{
- const char * error_type = (errno == ERANGE)? _("out of range"):_("invalid unit");
+ const char *error_type = (errno == ERANGE) ?
+ N_("out of range") : N_("invalid unit");
+ const char *bad_numeric = N_("bad numeric config value '%s' for '%s': %s");
if (!value)
value = "";
+ if (!strcmp(name, "GIT_TEST_GETTEXT_POISON"))
+ /*
+ * We explicitly *don't* use _() here since it would
+ * cause an infinite loop with _() needing to call
+ * use_gettext_poison(). This is why marked up
+ * translations with N_() above.
+ */
+ die(bad_numeric, value, name, error_type);
+
if (!(cf && cf->name))
- die(_("bad numeric config value '%s' for '%s': %s"),
- value, name, error_type);
+ die(_(bad_numeric), value, name, _(error_type));
switch (cf->origin_type) {
case CONFIG_ORIGIN_BLOB:
die(_("bad numeric config value '%s' for '%s' in blob %s: %s"),
- value, name, cf->name, error_type);
+ value, name, cf->name, _(error_type));
case CONFIG_ORIGIN_FILE:
die(_("bad numeric config value '%s' for '%s' in file %s: %s"),
- value, name, cf->name, error_type);
+ value, name, cf->name, _(error_type));
case CONFIG_ORIGIN_STDIN:
die(_("bad numeric config value '%s' for '%s' in standard input: %s"),
- value, name, error_type);
+ value, name, _(error_type));
case CONFIG_ORIGIN_SUBMODULE_BLOB:
die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"),
- value, name, cf->name, error_type);
+ value, name, cf->name, _(error_type));
case CONFIG_ORIGIN_CMDLINE:
die(_("bad numeric config value '%s' for '%s' in command line %s: %s"),
- value, name, cf->name, error_type);
+ value, name, cf->name, _(error_type));
default:
die(_("bad numeric config value '%s' for '%s' in %s: %s"),
- value, name, cf->name, error_type);
+ value, name, cf->name, _(error_type));
}
}
diff --git a/config.mak.uname b/config.mak.uname
index b71688e..48a6723 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -1,5 +1,9 @@
# Platform specific Makefile tweaks based on uname detection
+# Define NO_SAFESEH if you need MSVC/Visual Studio to ignore the lack of
+# Microsoft's Safe Exception Handling in libraries (such as zlib).
+# Typically required for VS2013+/32-bit compilation on Vista+ versions.
+
uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
uname_M := $(shell sh -c 'uname -m 2>/dev/null || echo not')
uname_O := $(shell sh -c 'uname -o 2>/dev/null || echo not')
@@ -11,6 +15,19 @@ ifdef MSVC
# avoid the MingW and Cygwin configuration sections
uname_S := Windows
uname_O := Windows
+
+ # Generate and include makefile variables that point to the
+ # currently installed set of MSVC command line tools.
+compat/vcbuild/MSVC-DEFS-GEN: compat/vcbuild/find_vs_env.bat
+ @"$<" | tr '\\' / >"$@"
+include compat/vcbuild/MSVC-DEFS-GEN
+
+ # See if vcpkg and the vcpkg-build versions of the third-party
+ # libraries that we use are installed. We include the result
+ # to get $(vcpkg_*) variables defined for the Makefile.
+compat/vcbuild/VCPKG-DEFS: compat/vcbuild/vcpkg_install.bat
+ @"$<"
+include compat/vcbuild/VCPKG-DEFS
endif
# We choose to avoid "if .. else if .. else .. endif endif"
@@ -356,6 +373,19 @@ endif
ifeq ($(uname_S),Windows)
GIT_VERSION := $(GIT_VERSION).MSVC
pathsep = ;
+ # Assume that this is built in Git for Windows' SDK
+ ifeq (MINGW32,$(MSYSTEM))
+ prefix = /mingw32
+ else
+ prefix = /mingw64
+ endif
+ # Prepend MSVC 64-bit tool-chain to PATH.
+ #
+ # A regular Git Bash *does not* have cl.exe in its $PATH. As there is a
+ # link.exe next to, and required by, cl.exe, we have to prepend this
+ # onto the existing $PATH.
+ #
+ SANE_TOOL_PATH ?= $(msvc_bin_dir_msys)
HAVE_ALLOCA_H = YesPlease
NO_PREAD = YesPlease
NEEDS_CRYPTO_WITH_SSL = YesPlease
@@ -368,11 +398,14 @@ ifeq ($(uname_S),Windows)
NO_STRCASESTR = YesPlease
NO_STRLCPY = YesPlease
NO_MEMMEM = YesPlease
- # NEEDS_LIBICONV = YesPlease
- NO_ICONV = YesPlease
+ NEEDS_LIBICONV = YesPlease
NO_STRTOUMAX = YesPlease
NO_MKDTEMP = YesPlease
- SNPRINTF_RETURNS_BOGUS = YesPlease
+ NO_INTTYPES_H = YesPlease
+ # VS2015 with UCRT claims that snprintf and friends are C99 compliant,
+ # so we don't need this:
+ #
+ # SNPRINTF_RETURNS_BOGUS = YesPlease
NO_SVN_TESTS = YesPlease
RUNTIME_PREFIX = YesPlease
HAVE_WPGMPTR = YesWeDo
@@ -385,7 +418,6 @@ ifeq ($(uname_S),Windows)
NO_REGEX = YesPlease
NO_GETTEXT = YesPlease
NO_PYTHON = YesPlease
- BLK_SHA1 = YesPlease
ETAGS_TARGET = ETAGS
NO_POSIX_GOODIES = UnfortunatelyYes
NATIVE_CRLF = YesPlease
@@ -394,26 +426,52 @@ ifeq ($(uname_S),Windows)
CC = compat/vcbuild/scripts/clink.pl
AR = compat/vcbuild/scripts/lib.pl
CFLAGS =
- BASIC_CFLAGS = -nologo -I. -I../zlib -Icompat/vcbuild -Icompat/vcbuild/include -DWIN32 -D_CONSOLE -DHAVE_STRING_H -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_DEPRECATE
+ BASIC_CFLAGS = -nologo -I. -Icompat/vcbuild/include -DWIN32 -D_CONSOLE -DHAVE_STRING_H -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_DEPRECATE
COMPAT_OBJS = compat/msvc.o compat/winansi.o \
compat/win32/path-utils.o \
compat/win32/pthread.o compat/win32/syslog.o \
compat/win32/trace2_win32_process_info.o \
compat/win32/dirent.o
- COMPAT_CFLAGS = -D__USE_MINGW_ACCESS -DNOGDI -DHAVE_STRING_H -Icompat -Icompat/regex -Icompat/win32 -DSTRIP_EXTENSION=\".exe\"
- BASIC_LDFLAGS = -IGNORE:4217 -IGNORE:4049 -NOLOGO -SUBSYSTEM:CONSOLE
- EXTLIBS = user32.lib advapi32.lib shell32.lib wininet.lib ws2_32.lib invalidcontinue.obj
+ COMPAT_CFLAGS = -D__USE_MINGW_ACCESS -DDETECT_MSYS_TTY -DNOGDI -DHAVE_STRING_H -Icompat -Icompat/regex -Icompat/win32 -DSTRIP_EXTENSION=\".exe\"
+ BASIC_LDFLAGS = -IGNORE:4217 -