summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--.gitignore1
-rw-r--r--.travis.yml16
-rw-r--r--Documentation/CodingGuidelines37
-rw-r--r--Documentation/RelNotes/2.11.0.txt593
-rw-r--r--Documentation/RelNotes/2.11.1.txt168
-rw-r--r--Documentation/blame-options.txt5
-rw-r--r--Documentation/config.txt75
-rw-r--r--Documentation/date-formats.txt2
-rw-r--r--Documentation/diff-config.txt22
-rw-r--r--Documentation/diff-heuristic-options.txt7
-rw-r--r--Documentation/diff-options.txt37
-rw-r--r--Documentation/fetch-options.txt14
-rw-r--r--Documentation/git-annotate.txt1
-rw-r--r--Documentation/git-bisect.txt4
-rw-r--r--Documentation/git-blame.txt4
-rw-r--r--Documentation/git-cat-file.txt40
-rw-r--r--Documentation/git-clone.txt13
-rw-r--r--Documentation/git-commit.txt3
-rw-r--r--Documentation/git-count-objects.txt5
-rw-r--r--Documentation/git-fetch-pack.txt20
-rw-r--r--Documentation/git-fetch.txt2
-rw-r--r--Documentation/git-format-patch.txt8
-rw-r--r--Documentation/git-gc.txt34
-rw-r--r--Documentation/git-index-pack.txt2
-rw-r--r--Documentation/git-interpret-trailers.txt15
-rw-r--r--Documentation/git-ls-files.txt7
-rw-r--r--Documentation/git-mergetool.txt7
-rw-r--r--Documentation/git-pull.txt2
-rw-r--r--Documentation/git-push.txt2
-rw-r--r--Documentation/git-receive-pack.txt3
-rw-r--r--Documentation/git-stash.txt3
-rw-r--r--Documentation/git-status.txt133
-rw-r--r--Documentation/git-svn.txt8
-rw-r--r--Documentation/git-unpack-objects.txt3
-rw-r--r--Documentation/git.txt18
-rw-r--r--Documentation/gitattributes.txt159
-rw-r--r--Documentation/gitcore-tutorial.txt12
-rw-r--r--Documentation/gitnamespaces.txt20
-rw-r--r--Documentation/gitremote-helpers.txt11
-rw-r--r--Documentation/gitweb.conf.txt21
-rw-r--r--Documentation/pretty-formats.txt10
-rw-r--r--Documentation/revisions.txt17
-rw-r--r--Documentation/technical/api-in-core-index.txt21
-rw-r--r--Documentation/technical/api-sha1-array.txt8
-rw-r--r--Documentation/technical/pack-protocol.txt4
-rw-r--r--Documentation/technical/protocol-capabilities.txt25
-rw-r--r--Documentation/transfer-data-leaks.txt30
-rwxr-xr-xGIT-VERSION-GEN2
-rw-r--r--Makefile24
-rw-r--r--README.md2
l---------RelNotes2
-rw-r--r--apply.c4988
-rw-r--r--apply.h137
-rw-r--r--archive-zip.c7
-rw-r--r--archive.c8
-rw-r--r--archive.h2
-rw-r--r--attr.c6
-rw-r--r--bisect.c2
-rw-r--r--branch.c2
-rw-r--r--builtin.h2
-rw-r--r--builtin/am.c209
-rw-r--r--builtin/apply.c4861
-rw-r--r--builtin/archive.c10
-rw-r--r--builtin/blame.c175
-rw-r--r--builtin/branch.c4
-rw-r--r--builtin/cat-file.c178
-rw-r--r--builtin/checkout-index.c2
-rw-r--r--builtin/checkout.c73
-rw-r--r--builtin/clone.c137
-rw-r--r--builtin/commit-tree.c20
-rw-r--r--builtin/commit.c97
-rw-r--r--builtin/config.c4
-rw-r--r--builtin/count-objects.c12
-rw-r--r--builtin/describe.c2
-rw-r--r--builtin/diff.c27
-rw-r--r--builtin/fast-export.c2
-rw-r--r--builtin/fetch-pack.c27
-rw-r--r--builtin/fetch.c87
-rw-r--r--builtin/fmt-merge-msg.c12
-rw-r--r--builtin/fsck.c14
-rw-r--r--builtin/gc.c9
-rw-r--r--builtin/grep.c3
-rw-r--r--builtin/hash-object.c13
-rw-r--r--builtin/help.c30
-rw-r--r--builtin/index-pack.c28
-rw-r--r--builtin/init-db.c109
-rw-r--r--builtin/log.c62
-rw-r--r--builtin/ls-files.c181
-rw-r--r--builtin/mailinfo.c19
-rw-r--r--builtin/merge-index.c2
-rw-r--r--builtin/merge-recursive.c19
-rw-r--r--builtin/merge.c11
-rw-r--r--builtin/mktree.c2
-rw-r--r--builtin/name-rev.c3
-rw-r--r--builtin/notes.c66
-rw-r--r--builtin/pack-objects.c243
-rw-r--r--builtin/pull.c93
-rw-r--r--builtin/push.c7
-rw-r--r--builtin/read-tree.c2
-rw-r--r--builtin/receive-pack.c134
-rw-r--r--builtin/remote-ext.c4
-rw-r--r--builtin/remote.c3
-rw-r--r--builtin/repack.c9
-rw-r--r--builtin/reset.c52
-rw-r--r--builtin/rev-list.c74
-rw-r--r--builtin/rev-parse.c64
-rw-r--r--builtin/revert.c46
-rw-r--r--builtin/rm.c18
-rw-r--r--builtin/shortlog.c2
-rw-r--r--builtin/show-branch.c36
-rw-r--r--builtin/stripspace.c4
-rw-r--r--builtin/submodule--helper.c156
-rw-r--r--builtin/unpack-objects.c7
-rw-r--r--builtin/update-index.c79
-rw-r--r--builtin/upload-archive.c6
-rw-r--r--builtin/worktree.c14
-rw-r--r--bulk-checkin.c2
-rw-r--r--cache-tree.c4
-rw-r--r--cache.h157
-rw-r--r--combine-diff.c6
-rw-r--r--commit.c8
-rw-r--r--commit.h2
-rw-r--r--compat/mingw.h3
-rw-r--r--compat/winansi.c176
-rw-r--r--config.c58
-rw-r--r--connect.c42
-rw-r--r--connected.c1
-rw-r--r--connected.h5
-rw-r--r--contrib/coccinelle/qsort.cocci37
-rw-r--r--contrib/credential/libsecret/Makefile25
-rw-r--r--contrib/credential/libsecret/git-credential-libsecret.c370
-rwxr-xr-xcontrib/long-running-filter/example.pl132
-rw-r--r--contrib/update-unicode/.gitignore3
-rw-r--r--contrib/update-unicode/README20
-rwxr-xr-xcontrib/update-unicode/update_unicode.sh33
-rw-r--r--convert.c401
-rw-r--r--credential-cache--daemon.c6
-rw-r--r--daemon.c2
-rw-r--r--diff-lib.c49
-rw-r--r--diff-no-index.c3
-rw-r--r--diff.c271
-rw-r--r--diff.h21
-rw-r--r--diffcore-delta.c5
-rw-r--r--diffcore-order.c2
-rw-r--r--diffcore-rename.c2
-rw-r--r--dir.c69
-rw-r--r--dir.h4
-rw-r--r--entry.c9
-rw-r--r--environment.c30
-rw-r--r--exec_cmd.c14
-rw-r--r--fast-import.c25
-rw-r--r--fetch-pack.c171
-rw-r--r--fetch-pack.h4
-rw-r--r--fsck.c18
-rwxr-xr-xgit-add--interactive.perl5
-rw-r--r--git-compat-util.h11
-rwxr-xr-xgit-difftool.perl55
-rwxr-xr-xgit-gui/GIT-VERSION-GEN2
-rw-r--r--git-gui/Makefile2
-rwxr-xr-xgit-gui/git-gui.sh154
-rw-r--r--git-gui/lib/blame.tcl2
-rw-r--r--git-gui/lib/branch_checkout.tcl2
-rw-r--r--git-gui/lib/branch_create.tcl2
-rw-r--r--git-gui/lib/branch_delete.tcl4
-rw-r--r--git-gui/lib/branch_rename.tcl2
-rw-r--r--git-gui/lib/browser.tcl6
-rw-r--r--git-gui/lib/commit.tcl36
-rw-r--r--git-gui/lib/database.tcl4
-rw-r--r--git-gui/lib/diff.tcl14
-rw-r--r--git-gui/lib/error.tcl8
-rw-r--r--git-gui/lib/index.tcl12
-rw-r--r--git-gui/lib/merge.tcl13
-rw-r--r--git-gui/lib/option.tcl8
-rw-r--r--git-gui/lib/remote.tcl8
-rw-r--r--git-gui/lib/remote_add.tcl2
-rw-r--r--git-gui/lib/remote_branch_delete.tcl2
-rw-r--r--git-gui/lib/shortcut.tcl17
-rw-r--r--git-gui/lib/themed.tcl87
-rw-r--r--git-gui/lib/tools.tcl3
-rw-r--r--git-gui/lib/tools_dlg.tcl6
-rw-r--r--git-gui/lib/transport.tcl2
-rw-r--r--git-gui/po/bg.po2833
-rw-r--r--git-gui/po/glossary/pt_pt.po293
-rw-r--r--git-gui/po/pt_pt.po2716
-rw-r--r--git-gui/po/ru.po680
-rw-r--r--git-mergetool--lib.sh56
-rwxr-xr-xgit-mergetool.sh184
-rwxr-xr-xgit-p4.py59
-rw-r--r--git-rebase--interactive.sh15
-rwxr-xr-xgit-request-pull.sh3
-rwxr-xr-xgit-stash.sh23
-rwxr-xr-xgit-submodule.sh7
-rwxr-xr-xgit-svn.perl13
-rw-r--r--git.c84
-rwxr-xr-xgitweb/gitweb.perl34
-rw-r--r--gpg-interface.c13
-rw-r--r--graph.c100
-rw-r--r--graph.h22
-rw-r--r--help.c15
-rw-r--r--http-backend.c2
-rw-r--r--http-walker.c15
-rw-r--r--http.c93
-rw-r--r--http.h10
-rw-r--r--ident.c32
-rw-r--r--line-log.c2
-rw-r--r--log-tree.c5
-rw-r--r--mailinfo.c117
-rw-r--r--mailinfo.h1
-rw-r--r--merge-recursive.c47
-rw-r--r--merge.c9
-rw-r--r--mergetools/araxis2
-rw-r--r--mergetools/bc2
-rw-r--r--mergetools/codecompare2
-rw-r--r--mergetools/deltawalker6
-rw-r--r--mergetools/diffmerge4
-rw-r--r--mergetools/diffuse2
-rw-r--r--mergetools/ecmerge2
-rw-r--r--mergetools/emerge4
-rw-r--r--mergetools/examdiff2
-rw-r--r--mergetools/kdiff34
-rw-r--r--mergetools/kompare4
-rw-r--r--mergetools/meld3
-rw-r--r--mergetools/opendiff2
-rw-r--r--mergetools/p4merge2
-rw-r--r--mergetools/tkdiff4
-rw-r--r--mergetools/tortoisemerge2
-rw-r--r--mergetools/vimdiff6
-rw-r--r--mergetools/winmerge2
-rw-r--r--mergetools/xxdiff12
-rw-r--r--notes-merge.c135
-rw-r--r--notes.c12
-rw-r--r--object.h2
-rw-r--r--pack-bitmap-write.c3
-rw-r--r--pack-bitmap.c2
-rw-r--r--pack-check.c2
-rw-r--r--pack-objects.h9
-rw-r--r--pack-write.c3
-rw-r--r--pager.c93
-rw-r--r--parse-options-cb.c12
-rw-r--r--parse-options.c2
-rw-r--r--parse-options.h1
-rw-r--r--path.c62
-rw-r--r--pathspec.c14
-rw-r--r--perl/Git.pm16
-rw-r--r--perl/Git/SVN.pm36
-rw-r--r--perl/Git/SVN/Editor.pm12
-rw-r--r--perl/Git/SVN/Fetcher.pm15
-rw-r--r--perl/Git/SVN/Migration.pm37
-rw-r--r--perl/Git/SVN/Ra.pm2
-rw-r--r--pkt-line.c152
-rw-r--r--pkt-line.h12
-rw-r--r--po/ca.po5143
-rw-r--r--po/de.po5196
-rw-r--r--po/fr.po5020
-rw-r--r--po/git.pot4802
-rw-r--r--po/ko.po5221
-rw-r--r--po/pt_PT.po4990
-rw-r--r--po/ru.po6831
-rw-r--r--po/sv.po4967
-rw-r--r--po/vi.po4965
-rw-r--r--po/zh_CN.po4917
-rw-r--r--pretty.c4
-rw-r--r--read-cache.c34
-rw-r--r--ref-filter.c4
-rw-r--r--refs.c325
-rw-r--r--refs.h17
-rw-r--r--refs/files-backend.c574
-rw-r--r--refs/refs-internal.h220
-rw-r--r--remote-curl.c110
-rw-r--r--remote.c6
-rw-r--r--rerere.c3
-rw-r--r--resolve-undo.c2
-rw-r--r--revision.c36
-rw-r--r--run-command.c58
-rw-r--r--run-command.h5
-rw-r--r--sequencer.c846
-rw-r--r--sequencer.h23
-rw-r--r--server-info.c2
-rw-r--r--sh-i18n--envsubst.c3
-rw-r--r--sha1-array.c10
-rw-r--r--sha1-array.h8
-rw-r--r--sha1_file.c558
-rw-r--r--sha1_name.c275
-rw-r--r--shallow.c119
-rw-r--r--split-index.c2
-rw-r--r--strbuf.c20
-rw-r--r--strbuf.h8
-rw-r--r--streaming.c6
-rw-r--r--streaming.h2
-rw-r--r--string-list.c2
-rw-r--r--submodule.c350
-rw-r--r--submodule.h15
-rw-r--r--t/helper/test-config.c3
-rw-r--r--t/helper/test-dump-cache-tree.c1
-rw-r--r--t/helper/test-dump-split-index.c2
-rw-r--r--t/helper/test-dump-untracked-cache.c6
-rw-r--r--t/helper/test-scrap-cache-tree.c1
-rw-r--r--t/helper/test-sha1-array.c3
-rw-r--r--t/lib-httpd/apache.conf14
-rwxr-xr-xt/perf/p0003-delta-base-cache.sh31
-rwxr-xr-xt/perf/p5310-pack-bitmaps.sh14
-rwxr-xr-xt/t0001-init.sh26
-rwxr-xr-xt/t0012-help.sh52
-rwxr-xr-xt/t0020-crlf.sh6
-rwxr-xr-xt/t0021-conversion.sh488
-rw-r--r--t/t0021/rot13-filter.pl196
-rwxr-xr-xt/t0030-stripspace.sh9
-rwxr-xr-xt/t0060-path-utils.sh29
-rwxr-xr-xt/t1007-hash-object.sh68
-rwxr-xr-xt/t1050-large.sh29
-rwxr-xr-xt/t1301-shared-repo.sh41
-rwxr-xr-xt/t1302-repo-version.sh32
-rwxr-xr-xt/t1308-config-set.sh10
-rwxr-xr-xt/t1450-fsck.sh16
-rwxr-xr-xt/t1512-rev-parse-disambiguation.sh72
-rwxr-xr-xt/t1514-rev-parse-push.sh6
-rwxr-xr-xt/t2027-worktree-list.sh40
-rwxr-xr-xt/t2203-add-intent.sh41
-rwxr-xr-xt/t3007-ls-files-recurse-submodules.sh210
-rwxr-xr-xt/t3030-merge-recursive.sh4
-rwxr-xr-xt/t3310-notes-merge-manual-resolve.sh2
-rwxr-xr-xt/t3320-notes-merge-worktrees.sh2
-rwxr-xr-xt/t3404-rebase-interactive.sh11
-rwxr-xr-xt/t3426-rebase-submodule.sh3
-rwxr-xr-xt/t3501-revert-cherry-pick.sh14
-rwxr-xr-xt/t3510-cherry-pick-sequence.sh10
-rwxr-xr-xt/t3600-rm.sh129
-rwxr-xr-xt/t3700-add.sh5
-rwxr-xr-xt/t3900-i18n-commit.sh8
-rwxr-xr-xt/t3901-i18n-patch.sh2
-rwxr-xr-xt/t3903-stash.sh44
-rwxr-xr-xt/t4012-diff-binary.sh4
-rwxr-xr-xt/t4013-diff-various.sh13
-rw-r--r--t/t4013/diff.diff_--line-prefix=abc_master_master^_side29
-rw-r--r--t/t4013/diff.diff_--line-prefix_--cached_--_file015
-rw-r--r--t/t4013/diff.diff_--no-index_--raw_--abbrev=4_dir2_dir3
-rw-r--r--t/t4013/diff.diff_--no-index_--raw_--no-abbrev_dir2_dir3
-rw-r--r--t/t4013/diff.diff_--no-index_--raw_dir2_dir3
-rw-r--r--t/t4013/diff.diff_--raw_--abbrev=4_initial6
-rw-r--r--t/t4013/diff.diff_--raw_--no-abbrev_initial6
-rw-r--r--t/t4013/diff.diff_--raw_initial6
-rwxr-xr-xt/t4014-format-patch.sh9
-rwxr-xr-xt/t4015-diff-whitespace.sh74
-rwxr-xr-xt/t4021-format-patch-numbered.sh17
-rwxr-xr-xt/t4053-diff-no-index.sh38
-rwxr-xr-xt/t4059-diff-submodule-not-initialized.sh127
-rwxr-xr-xt/t4060-diff-submodule-option-diff-format.sh749
-rwxr-xr-xt/t4061-diff-indent.sh216
-rwxr-xr-xt/t4150-am.sh23
-rwxr-xr-xt/t4202-log.sh323
-rwxr-xr-xt/t4204-patch-id.sh14
-rwxr-xr-xt/t4254-am-corrupt.sh4
-rwxr-xr-xt/t5000-tar-tree.sh21
-rwxr-xr-xt/t5003-archive-zip.sh22
-rwxr-xr-xt/t5100-mailinfo.sh15
-rw-r--r--t/t5100/info00185
-rw-r--r--t/t5100/info0018--no-inbody-headers5
-rw-r--r--t/t5100/msg00152
-rw-r--r--t/t5100/msg00182
-rw-r--r--t/t5100/msg0018--no-inbody-headers8
-rw-r--r--t/t5100/patch00186
-rw-r--r--t/t5100/patch0018--no-inbody-headers6
-rw-r--r--t/t5100/sample.mbox19
-rwxr-xr-xt/t5300-pack-object.sh15
-rwxr-xr-xt/t5310-pack-bitmaps.sh116
-rwxr-xr-xt/t5314-pack-cycle-detection.sh113
-rwxr-xr-xt/t5315-pack-objects-compression.sh44
-rwxr-xr-xt/t5500-fetch-pack.sh68
-rwxr-xr-xt/t5512-ls-remote.sh42
-rwxr-xr-xt/t5520-pull.sh17
-rwxr-xr-xt/t5528-push-default.sh10
-rwxr-xr-xt/t5531-deep-submodule-push.sh24
-rwxr-xr-xt/t5539-fetch-http-shallow.sh73
-rwxr-xr-xt/t5546-receive-limits.sh55
-rwxr-xr-xt/t5547-push-quarantine.sh61
-rwxr-xr-xt/t5550-http-fetch-dumb.sh61
-rwxr-xr-xt/t5551-http-fetch-smart.sh56
-rwxr-xr-xt/t5613-info-alternate.sh205
-rwxr-xr-xt/t5615-alternate-env.sh89
-rwxr-xr-xt/t5812-proto-disable-http.sh1
-rwxr-xr-xt/t6000-rev-list-misc.sh14
-rwxr-xr-xt/t6101-rev-parse-parents.sh112
-rwxr-xr-xt/t6300-for-each-ref.sh10
-rwxr-xr-xt/t6500-gc.sh25
-rwxr-xr-xt/t7060-wtstatus.sh21
-rwxr-xr-xt/t7064-wtstatus-pv2.sh593
-rwxr-xr-xt/t7408-submodule-reference.sh185
-rwxr-xr-xt/t7501-commit.sh9
-rwxr-xr-xt/t7510-signed-commit.sh13
-rwxr-xr-xt/t7513-interpret-trailers.sh299
-rwxr-xr-xt/t7609-merge-co-error-msgs.sh2
-rwxr-xr-xt/t7610-mergetool.sh63
-rwxr-xr-xt/t7800-difftool.sh44
-rwxr-xr-xt/t7810-grep.sh26
-rwxr-xr-xt/t8002-blame.sh32
-rwxr-xr-xt/t8003-blame-corner-cases.sh4
-rwxr-xr-xt/t8010-cat-file-filters.sh64
-rwxr-xr-xt/t8011-blame-split-file.sh117
-rwxr-xr-xt/t9100-git-svn-basic.sh17
-rwxr-xr-xt/t9301-fast-import-notes.sh42
-rwxr-xr-xt/t9303-fast-import-compression.sh67
-rwxr-xr-xt/t9500-gitweb-standalone-no-errors.sh8
-rwxr-xr-xt/t9800-git-p4-basic.sh22
-rwxr-xr-xt/t9824-git-p4-git-lfs.sh2
-rwxr-xr-xt/t9830-git-p4-symlink-dir.sh43
-rwxr-xr-xt/t9902-completion.sh7
-rw-r--r--t/test-lib-functions.sh18
-rw-r--r--t/test-lib.sh4
-rw-r--r--tmp-objdir.c291
-rw-r--r--tmp-objdir.h54
-rw-r--r--trailer.c620
-rw-r--r--transport-helper.c62
-rw-r--r--transport.c136
-rw-r--r--transport.h17
-rw-r--r--tree-walk.c83
-rw-r--r--tree-walk.h8
-rw-r--r--tree.c5
-rw-r--r--unicode_width.h131
-rw-r--r--unpack-trees.c14
-rwxr-xr-xupdate_unicode.sh40
-rw-r--r--upload-pack.c413
-rw-r--r--usage.c15
-rw-r--r--utf8.c36
-rw-r--r--worktree.c42
-rw-r--r--worktree.h4
-rw-r--r--write_or_die.c13
-rw-r--r--wt-status.c653
-rw-r--r--wt-status.h25
-rw-r--r--xdiff-interface.c8
-rw-r--r--xdiff-interface.h3
-rw-r--r--xdiff/xdiff.h1
-rw-r--r--xdiff/xdiffi.c635
432 files changed, 58291 insertions, 32345 deletions
diff --git a/.gitignore b/.gitignore
index 05cb58a..6722f78 100644
--- a/.gitignore
+++ b/.gitignore
@@ -203,7 +203,6 @@
/config.mak.autogen
/config.mak.append
/configure
-/unicode
/tags
/TAGS
/cscope*
diff --git a/.travis.yml b/.travis.yml
index 0b2ea5c..9c63c8c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,8 +27,8 @@ env:
# 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!
- - LINUX_P4_VERSION="16.1"
- - LINUX_GIT_LFS_VERSION="1.2.0"
+ - LINUX_P4_VERSION="16.2"
+ - LINUX_GIT_LFS_VERSION="1.5.2"
- DEFAULT_TEST_TARGET=prove
- GIT_PROVE_OPTS="--timer --jobs 3 --state=failed,slow,save"
- GIT_TEST_OPTS="--verbose-log"
@@ -75,20 +75,12 @@ before_install:
popd
;;
osx)
- brew_force_set_latest_binary_hash () {
- FORMULA=$1
- SHA=$(brew fetch --force $FORMULA 2>&1 | grep ^SHA256: | cut -d ' ' -f 2)
- sed -E -i.bak "s/sha256 \"[0-9a-f]{64}\"/sha256 \"$SHA\"/g" \
- "$(brew --repository homebrew/homebrew-binary)/$FORMULA.rb"
- }
brew update --quiet
- brew tap homebrew/binary --quiet
- brew_force_set_latest_binary_hash perforce
- brew_force_set_latest_binary_hash perforce-server
# Uncomment this if you want to run perf tests:
# brew install gnu-time
- brew install git-lfs perforce-server perforce gettext
+ brew install git-lfs gettext
brew link --force gettext
+ brew install caskroom/cask/perforce
;;
esac;
echo "$(tput setaf 6)Perforce Server Version$(tput sgr0)";
diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines
index 4cd95da..a4191aa 100644
--- a/Documentation/CodingGuidelines
+++ b/Documentation/CodingGuidelines
@@ -206,11 +206,38 @@ For C programs:
x = 1;
}
- is frowned upon. A gray area is when the statement extends
- over a few lines, and/or you have a lengthy comment atop of
- it. Also, like in the Linux kernel, if there is a long list
- of "else if" statements, it can make sense to add braces to
- single line blocks.
+ is frowned upon. But there are a few exceptions:
+
+ - When the statement extends over a few lines (e.g., a while loop
+ with an embedded conditional, or a comment). E.g.:
+
+ while (foo) {
+ if (x)
+ one();
+ else
+ two();
+ }
+
+ if (foo) {
+ /*
+ * This one requires some explanation,
+ * so we're better off with braces to make
+ * it obvious that the indentation is correct.
+ */
+ doit();
+ }
+
+ - When there are multiple arms to a conditional and some of them
+ require braces, enclose even a single line block in braces for
+ consistency. E.g.:
+
+ if (foo) {
+ doit();
+ } else {
+ one();
+ two();
+ three();
+ }
- We try to avoid assignments in the condition of an "if" statement.
diff --git a/Documentation/RelNotes/2.11.0.txt b/Documentation/RelNotes/2.11.0.txt
new file mode 100644
index 0000000..b7b7dd3
--- /dev/null
+++ b/Documentation/RelNotes/2.11.0.txt
@@ -0,0 +1,593 @@
+Git 2.11 Release Notes
+======================
+
+Backward compatibility notes.
+
+ * An empty string used as a pathspec element has always meant
+ 'everything matches', but it is too easy to write a script that
+ finds a path to remove in $path and run 'git rm "$paht"' by
+ mistake (when the user meant to give "$path"), which ends up
+ removing everything. This release starts warning about the
+ use of an empty string that is used for 'everything matches' and
+ asks users to use a more explicit '.' for that instead.
+
+ The hope is that existing users will not mind this change, and
+ eventually the warning can be turned into a hard error, upgrading
+ the deprecation into removal of this (mis)feature.
+
+ * The historical argument order "git merge <msg> HEAD <commit>..."
+ has been deprecated for quite some time, and will be removed in the
+ next release (not this one).
+
+ * The default abbreviation length, which has historically been 7, now
+ scales as the repository grows, using the approximate number of
+ objects in the repository and a bit of math around the birthday
+ paradox. The logic suggests to use 12 hexdigits for the Linux
+ kernel, and 9 to 10 for Git itself.
+
+
+Updates since v2.10
+-------------------
+
+UI, Workflows & Features
+
+ * Comes with new version of git-gui, now at its 0.21.0 tag.
+
+ * "git format-patch --cover-letter HEAD^" to format a single patch
+ with a separate cover letter now numbers the output as [PATCH 0/1]
+ and [PATCH 1/1] by default.
+
+ * An incoming "git push" that attempts to push too many bytes can now
+ be rejected by setting a new configuration variable at the receiving
+ end.
+
+ * "git nosuchcommand --help" said "No manual entry for gitnosuchcommand",
+ which was not intuitive, given that "git nosuchcommand" said "git:
+ 'nosuchcommand' is not a git command".
+
+ * "git clone --recurse-submodules --reference $path $URL" is a way to
+ reduce network transfer cost by borrowing objects in an existing
+ $path repository when cloning the superproject from $URL; it
+ learned to also peek into $path for presence of corresponding
+ repositories of submodules and borrow objects from there when able.
+
+ * The "git diff --submodule={short,log}" mechanism has been enhanced
+ to allow "--submodule=diff" to show the patch between the submodule
+ commits bound to the superproject.
+
+ * Even though "git hash-objects", which is a tool to take an
+ on-filesystem data stream and put it into the Git object store,
+ can perform "outside-world-to-Git" conversions (e.g.
+ end-of-line conversions and application of the clean-filter), and
+ it has had this feature on by default from very early days, its reverse
+ operation "git cat-file", which takes an object from the Git object
+ store and externalizes it for consumption by the outside world,
+ lacked an equivalent mechanism to run the "Git-to-outside-world"
+ conversion. The command learned the "--filters" option to do so.
+
+ * Output from "git diff" can be made easier to read by intelligently selecting
+ which lines are common and which lines are added/deleted
+ when the lines before and after the changed section
+ are the same. A command line option (--indent-heuristic) and a
+ configuration variable (diff.indentHeuristic) are added to help with the
+ experiment to find good heuristics.
+
+ * In some projects, it is common to use "[RFC PATCH]" as the subject
+ prefix for a patch meant for discussion rather than application. A
+ new format-patch option "--rfc" is a short-hand for "--subject-prefix=RFC PATCH"
+ to help the participants of such projects.
+
+ * "git add --chmod={+,-}x <pathspec>" only changed the
+ executable bit for paths that are either new or modified. This has
+ been corrected to change the executable bit for all paths that match
+ the given pathspec.
+
+ * When "git format-patch --stdout" output is placed as an in-body
+ header and it uses RFC2822 header folding, "git am" fails to
+ put the header line back into a single logical line. The
+ underlying "git mailinfo" was taught to handle this properly.
+
+ * "gitweb" can spawn "highlight" to show blob contents with
+ (programming) language-specific syntax highlighting, but only
+ when the language is known. "highlight" can however be told
+ to guess the language itself by giving it "--force" option, which
+ has been enabled.
+
+ * "git gui" l10n to Portuguese.
+
+ * When given an abbreviated object name that is not (or more
+ realistically, "no longer") unique, we gave a fatal error
+ "ambiguous argument". This error is now accompanied by a hint that
+ lists the objects beginning with the given prefix. During the
+ course of development of this new feature, numerous minor bugs were
+ uncovered and corrected, the most notable one of which is that we
+ gave "short SHA1 xxxx is ambiguous." twice without good reason.
+
+ * "git log rev^..rev" is an often-used revision range specification
+ to show what was done on a side branch merged at rev. This has
+ gained a short-hand "rev^-1". In general "rev^-$n" is the same as
+ "^rev^$n rev", i.e. what has happened on other branches while the
+ history leading to nth parent was looking the other way.
+
+ * In recent versions of cURL, GSSAPI credential delegation is
+ disabled by default due to CVE-2011-2192; introduce a http.delegation
+ configuration variable to selectively allow enabling this.
+ (merge 26a7b23429 ps/http-gssapi-cred-delegation later to maint).
+
+ * "git mergetool" learned to honor "-O<orderfile>" to control the
+ order of paths to present to the end user.
+
+ * "git diff/log --ws-error-highlight=<kind>" lacked the corresponding
+ configuration variable (diff.wsErrorHighlight) to set it by default.
+
+ * "git ls-files" learned the "--recurse-submodules" option
+ to get a listing of tracked files across submodules (i.e. this
+ only works with the "--cached" option, not for listing untracked or
+ ignored files). This would be a useful tool to sit on the upstream
+ side of a pipe that is read with xargs to work on all working tree
+ files from the top-level superproject.
+
+ * A new credential helper that talks via "libsecret" with
+ implementations of XDG Secret Service API has been added to
+ contrib/credential/.
+
+ * The GPG verification status shown by the "%G?" pretty format specifier
+ was not rich enough to differentiate a signature made by an expired
+ key, a signature made by a revoked key, etc. New output letters
+ have been assigned to express them.
+
+ * In addition to purely abbreviated commit object names, "gitweb"
+ learned to turn "git describe" output (e.g. v2.9.3-599-g2376d31787)
+ into clickable links in its output.
+
+ * "git commit" created an empty commit when invoked with an index
+ consisting solely of intend-to-add paths (added with "git add -N").
+ It now requires the "--allow-empty" option to create such a commit.
+ The same logic prevented "git status" from showing such paths as "new files" in the
+ "Changes not staged for commit" section.
+
+ * The smudge/clean filter API spawns an external process
+ to filter the contents of each path that has a filter defined. A
+ new type of "process" filter API has been added to allow the first
+ request to run the filter for a path to spawn a single process, and
+ all filtering is served by this single process for multiple
+ paths, reducing the process creation overhead.
+
+ * The user always has to say "stash@{$N}" when naming a single
+ element in the default location of the stash, i.e. reflogs in
+ refs/stash. The "git stash" command learned to accept "git stash
+ apply 4" as a short-hand for "git stash apply stash@{4}".
+
+
+Performance, Internal Implementation, Development Support etc.
+
+ * The delta-base-cache mechanism has been a key to the performance in
+ a repository with a tightly packed packfile, but it did not scale
+ well even with a larger value of core.deltaBaseCacheLimit.
+
+ * Enhance "git status --porcelain" output by collecting more data on
+ the state of the index and the working tree files, which may
+ further be used to teach git-prompt (in contrib/) to make fewer
+ calls to git.
+
+ * Extract a small helper out of the function that reads the authors
+ script file "git am" internally uses.
+ (merge a77598e jc/am-read-author-file later to maint).
+
+ * Lift calls to exit(2) and die() higher in the callchain in
+ sequencer.c files so that more helper functions in it can be used
+ by callers that want to handle error conditions themselves.
+
+ * "git am" has been taught to make an internal call to "git apply"'s
+ innards without spawning the latter as a separate process.
+
+ * The ref-store abstraction was introduced to the refs API so that we
+ can plug in different backends to store references.
+
+ * The "unsigned char sha1[20]" to "struct object_id" conversion
+ continues. Notable changes in this round includes that ce->sha1,
+ i.e. the object name recorded in the cache_entry, turns into an
+ object_id.
+
+ * JGit can show a fake ref "capabilities^{}" to "git fetch" when it
+ does not advertise any refs, but "git fetch" was not prepared to
+ see such an advertisement. When the other side disconnects without
+ giving any ref advertisement, we used to say "there may not be a
+ repository at that URL", but we may have seen other advertisements
+ like "shallow" and ".have" in which case we definitely know that a
+ repository is there. The code to detect this case has also been
+ updated.
+
+ * Some codepaths in "git pack-objects" were not ready to use an
+ existing pack bitmap; now they are and as a result they have
+ become faster.
+
+ * The codepath in "git fsck" to detect malformed tree objects has
+ been updated not to die but keep going after detecting them.
+
+ * We call "qsort(array, nelem, sizeof(array[0]), fn)", and most of
+ the time third parameter is redundant. A new QSORT() macro lets us
+ omit it.
+
+ * "git pack-objects" in a repository with many packfiles used to
+ spend a lot of time looking for/at objects in them; the accesses to
+ the packfiles are now optimized by checking the most-recently-used
+ packfile first.
+ (merge c9af708b1a jk/pack-objects-optim-mru later to maint).
+
+ * Codepaths involved in interacting alternate object stores have
+ been cleaned up.
+
+ * In order for the receiving end of "git push" to inspect the
+ received history and decide to reject the push, the objects sent
+ from the sending end need to be made available to the hook and
+ the mechanism for the connectivity check, and this was done
+ traditionally by storing the objects in the receiving repository
+ and letting "git gc" expire them. Instead, store the newly
+ received objects in a temporary area, and make them available by
+ reusing the alternate object store mechanism to them only while we
+ decide if we accept the check, and once we decide, either migrate
+ them to the repository or purge them immediately.
+
+ * The require_clean_work_tree() helper was recreated in C when "git
+ pull" was rewritten from shell; the helper is now made available to
+ other callers in preparation for upcoming "rebase -i" work.
+
+ * "git upload-pack" had its code cleaned-up and performance improved
+ by reducing use of timestamp-ordered commit-list, which was
+ replaced with a priority queue.
+
+ * "git diff --no-index" codepath has been updated not to try to peek
+ into a .git/ directory that happens to be under the current
+ directory, when we know we are operating outside any repository.
+
+ * Update of the sequencer codebase to make it reusable to reimplement
+ "rebase -i" continues.
+
+ * Git generally does not explicitly close file descriptors that were
+ open in the parent process when spawning a child process, but most
+ of the time the child does not want to access them. As Windows does
+ not allow removing or renaming a file that has a file descriptor
+ open, a slow-to-exit child can even break the parent process by
+ holding onto them. Use O_CLOEXEC flag to open files in various
+ codepaths.
+
+ * Update "interpret-trailers" machinery and teach it that people in
+ the real world write all sorts of cruft in the "trailer" that was
+ originally designed to have the neat-o "Mail-Header: like thing"
+ and nothing else.
+
+
+Also contains various documentation updates and code clean-ups.
+
+
+Fixes since v2.10
+-----------------
+
+Unless otherwise noted, all the fixes since v2.9 in the maintenance
+track are contained in this release (see the maintenance releases'
+notes for details).
+
+ * Clarify various ways to specify the "revision ranges" in the
+ documentation.
+
+ * "diff-highlight" script (in contrib/) learned to work better with
+ "git log -p --graph" output.
+
+ * The test framework left the number of tests and success/failure
+ count in the t/test-results directory, keyed by the name of the
+ test script plus the process ID. The latter however turned out not
+ to serve any useful purpose. The process ID part of the filename
+ has been removed.
+
+ * Having a submodule whose ".git" repository is somehow corrupt
+ caused a few commands that recurse into submodules to loop forever.
+
+ * "git symbolic-ref -d HEAD" happily removes the symbolic ref, but
+ the resulting repository becomes an invalid one. Teach the command
+ to forbid removal of HEAD.
+
+ * A test spawned a short-lived background process, which sometimes
+ prevented the test directory from getting removed at the end of the
+ script on some platforms.
+
+ * Update a few tests that used to use GIT_CURL_VERBOSE to use the
+ newer GIT_TRACE_CURL.
+
+ * "git pack-objects --include-tag" was taught that when we know that
+ we are sending an object C, we want a tag B that directly points at
+ C but also a tag A that points at the tag B. We used to miss the
+ intermediate tag B in some cases.
+
+ * Update Japanese translation for "git-gui".
+
+ * "git fetch http::/site/path" did not die correctly and segfaulted
+ instead.
+
+ * "git commit-tree" stopped reading commit.gpgsign configuration
+ variable that was meant for Porcelain "git commit" in Git 2.9; we
+ forgot to update "git gui" to look at the configuration to match
+ this change.
+
+ * "git add --chmod={+,-}x" added recently lacked documentation, which has
+ been corrected.
+
+ * "git log --cherry-pick" used to include merge commits as candidates
+ to be matched up with other commits, resulting a lot of wasted time.
+ The patch-id generation logic has been updated to ignore merges and
+ avoid the wastage.
+
+ * The http transport (with curl-multi option, which is the default
+ these days) failed to remove curl-easy handle from a curlm session,
+ which led to unnecessary API failures.
+
+ * There were numerous corner cases in which the configuration files
+ are read and used or not read at all depending on the directory a
+ Git command was run, leading to inconsistent behaviour. The code
+ to set-up repository access at the beginning of a Git process has
+ been updated to fix them.
+ (merge 4d0efa1 jk/setup-sequence-update later to maint).
+
+ * "git diff -W" output needs to extend the context backward to
+ include the header line of the current function and also forward to
+ include the body of the entire current function up to the header
+ line of the next one. This process may have to merge two adjacent
+ hunks, but the code forgot to do so in some cases.
+
+ * Performance tests done via "t/perf" did not use the right
+ build configuration if the user relied on autoconf generated
+ configuration.
+
+ * "git format-patch --base=..." feature that was recently added
+ showed the base commit information after the "-- " e-mail signature
+ line, which turned out to be inconvenient. The base information
+ has been moved above the signature line.
+
+ * More i18n.
+
+ * Even when "git pull --rebase=preserve" (and the underlying "git
+ rebase --preserve") can complete without creating any new commits
+ (i.e. fast-forwards), it still insisted on having usable ident
+ information (read: user.email is set correctly), which was less
+ than nice. As the underlying commands used inside "git rebase"
+ would fail with a more meaningful error message and advice text
+ when the bogus ident matters, this extra check was removed.
+
+ * "git gc --aggressive" used to limit the delta-chain length to 250,
+ which is way too deep for gaining additional space savings and is
+ detrimental for runtime performance. The limit has been reduced to
+ 50.
+
+ * Documentation for individual configuration variables to control use
+ of color (like `color.grep`) said that their default value is
+ 'false', instead of saying their default is taken from `color.ui`.
+ When we updated the default value for color.ui from 'false' to
+ 'auto' quite a while ago, all of them broke. This has been
+ corrected.
+
+ * The pretty-format specifier "%C(auto)" used by the "log" family of
+ commands to enable coloring of the output is taught to also issue a
+ color-reset sequence to the output.
+
+ * A shell script example in check-ref-format documentation has been
+ fixed.
+
+ * "git checkout <word>" does not follow the usual disambiguation
+ rules when the <word> can be both a rev and a path, to allow
+ checking out a branch 'foo' in a project that happens to have a
+ file 'foo' in the working tree without having to disambiguate.
+ This was poorly documented and the check was incorrect when the
+ command was run from a subdirectory.
+
+ * Some codepaths in "git diff" used regexec(3) on a buffer that was
+ mmap(2)ed, which may not have a terminating NUL, leading to a read
+ beyond the end of the mapped region. This was fixed by introducing
+ a regexec_buf() helper that takes a <ptr,len> pair with REG_STARTEND
+ extension.
+
+ * The procedure to build Git on Mac OS X for Travis CI hardcoded the
+ internal directory structure we assumed HomeBrew uses, which was a
+ no-no. The procedure has been updated to ask HomeBrew things we
+ need to know to fix this.
+
+ * When "git rebase -i" is given a broken instruction, it told the
+ user to fix it with "--edit-todo", but didn't say what the step
+ after that was (i.e. "--continue").
+
+ * Documentation around tools to import from CVS was fairly outdated.
+
+ * "git clone --recurse-submodules" lost the progress eye-candy in
+ a recent update, which has been corrected.
+
+ * A low-level function verify_packfile() was meant to show errors
+ that were detected without dying itself, but under some conditions
+ it didn't and died instead, which has been fixed.
+
+ * When "git fetch" tries to find where the history of the repository
+ it runs in has diverged from what the other side has, it has a
+ mechanism to avoid digging too deep into irrelevant side branches.
+ This however did not work well over the "smart-http" transport due
+ to a design bug, which has been fixed.
+
+ * In the codepath that comes up with the hostname to be used in an
+ e-mail when the user didn't tell us, we looked at the ai_canonname
+ field in struct addrinfo without making sure it is not NULL first.
+
+ * "git worktree", even though it used the default_abbrev setting that
+ ought to be affected by the core.abbrev configuration variable, ignored
+ the variable setting. The command has been taught to read the
+ default set of configuration variables to correct this.
+
+ * "git init" tried to record core.worktree in the repository's
+ 'config' file when the GIT_WORK_TREE environment variable was set and
+ it was different from where GIT_DIR appears as ".git" at its top,
+ but the logic was faulty when .git is a "gitdir:" file that points
+ at the real place, causing trouble in working trees that are
+ managed by "git worktree". This has been corrected.
+
+ * Codepaths that read from an on-disk loose object were too loose in
+ validating that they are reading a proper object file and
+ sometimes read past the data they read from the disk, which has
+ been corrected. H/t to Gustavo Grieco for reporting.
+
+ * The original command line syntax for "git merge", which was "git
+ merge <msg> HEAD <parent>...", has been deprecated for quite some
+ time, and "git gui" was the last in-tree user of the syntax. This
+ is finally fixed, so that we can move forward with the deprecation.
+
+ * An author name that has a backslash-quoted double quote in the
+ human readable part ("My \"double quoted\" name"), was not unquoted
+ correctly while applying a patch from a piece of e-mail.
+
+ * Doc update to clarify what "log -3 --reverse" does.
+
+ * Almost everybody uses DEFAULT_ABBREV to refer to the default
+ setting for the abbreviation, but "git blame" peeked into
+ underlying variable bypassing the macro for no good reason.
+
+ * The "graph" API used in "git log --graph" miscounted the number of
+ output columns consumed so far when drawing a padding line, which
+ has been fixed; this did not affect any existing code as nobody
+ tried to write anything after the padding on such a line, though.
+
+ * The code that parses the format parameter of the for-each-ref command
+ has seen a micro-optimization.
+
+ * When we started to use cURL to talk to an imap server, we forgot to explicitly add
+ imap(s):// before the destination. To some folks, that didn't work
+ and the library tried to make HTTP(s) requests instead.
+
+ * The ./configure script generated from configure.ac was taught how
+ to detect support of SSL by libcurl better.
+
+ * The command-line completion script (in contrib/) learned to
+ complete "git cmd ^mas<HT>" to complete the negative end of
+ reference to "git cmd ^master".
+ (merge 49416ad22a cp/completion-negative-refs later to maint).
+
+ * The existing "git fetch --depth=<n>" option was hard to use
+ correctly when making the history of an existing shallow clone
+ deeper. A new option, "--deepen=<n>", has been added to make this
+ easier to use. "git clone" also learned "--shallow-since=<date>"
+ and "--shallow-exclude=<tag>" options to make it easier to specify
+ "I am interested only in the recent N months worth of history" and
+ "Give me only the history since that version".
+ (merge cccf74e2da nd/shallow-deepen later to maint).
+
+ * "git blame --reverse OLD path" is now DWIMmed to show how lines
+ in path in an old revision OLD have survived up to the current
+ commit.
+ (merge e1d09701a4 jc/blame-reverse later to maint).
+
+ * The http.emptyauth configuration variable is a way to allow an empty username to
+ pass when attempting to authenticate using mechanisms like
+ Kerberos. We took an unspecified (NULL) username and sent ":"
+ (i.e. no username, no password) to CURLOPT_USERPWD, but did not do
+ the same when the username is explicitly set to an empty string.
+
+ * "git clone" of a local repository can be done at the filesystem
+ level, but the codepath did not check errors while copying and
+ adjusting the file that lists alternate object stores.
+
+ * Documentation for "git commit" was updated to clarify that "commit
+ -p <paths>" adds to the current contents of the index to come up
+ with what to commit.
+
+ * A stray symbolic link in the $GIT_DIR/refs/ directory could make name
+ resolution loop forever, which has been corrected.
+
+ * The "submodule.<name>.path" stored in .gitmodules is never copied
+ to .git/config and such a key in .git/config has no meaning, but
+ the documentation described it next to submodule.<name>.url
+ as if both belong to .git/config. This has been fixed.
+
+ * In a worktree created via "git
+ worktree", "git checkout" attempts to protect users from confusion
+ by refusing to check out a branch that is already checked out in
+ another worktree. However, this also prevented checking out a
+ branch which is designated as the primary branch of a bare
+ repository, in a worktree that is connected to the bare
+ repository. The check has been corrected to allow it.
+
+ * "git rebase" immediately after "git clone" failed to find the fork
+ point from the upstream.
+
+ * When fetching from a remote that has many tags that are irrelevant
+ to branches we are following, we used to waste way too many cycles
+ checking if the object pointed at by a tag (that we are not
+ going to fetch!) exists in our repository too carefully.
+
+ * Protect our code from over-eager compilers.
+
+ * Recent git allows submodule.<name>.branch to use a special token
+ "." instead of the branch name; the documentation has been updated
+ to describe it.
+
+ * "git send-email" attempts to pick up valid e-mails from the
+ trailers, but people in the real world write non-addresses there, like
+ "Cc: Stable <add@re.ss> # 4.8+", which broke the output depending
+ on the availability and vintage of the Mail::Address perl module.
+ (merge dcfafc5214 mm/send-email-cc-cruft-after-address later to maint).
+
+ * The Travis CI configuration we ship ran the tests with the --verbose
+ option but this risks non-TAP output that happens to be "ok" to be
+ misinterpreted as TAP signalling a test that passed. This resulted
+ in unnecessary failures. This has been corrected by introducing a
+ new mode to run our tests in the test harness to send the verbose
+ output separately to the log file.
+
+ * Some AsciiDoc formatters mishandle a displayed illustration with
+ tabs in it. Adjust a few of them in merge-base documentation to
+ work around them.
+
+ * Fixed a minor regression in "git submodule" that was introduced
+ when more helper functions were reimplemented in C.
+ (merge 77b63ac31e sb/submodule-ignore-trailing-slash later to maint).
+
+ * The code that we have used for the past 10+ years to cycle
+ 4-element ring buffers turns out to be not quite portable in
+ theoretical world.
+ (merge bb84735c80 rs/ring-buffer-wraparound later to maint).
+
+ * "git daemon" used fixed-length buffers to turn URLs to the
+ repository the client asked for into the server side directory
+ paths, using snprintf() to avoid overflowing these buffers, but
+ allowed possibly truncated paths to the directory. This has been
+ tightened to reject such a request that causes an overlong path to be
+ served.
+ (merge 6bdb0083be jk/daemon-path-ok-check-truncation later to maint).
+
+ * Recent update to git-sh-setup (a library of shell functions that
+ are used by our in-tree scripted Porcelain commands) included
+ another shell library git-sh-i18n without specifying where it is,
+ relying on the $PATH. This has been fixed to be more explicit by
+ prefixing with $(git --exec-path) output.
+ (merge 1073094f30 ak/sh-setup-dot-source-i18n-fix later to maint).
+
+ * Fix for a racy false-positive test failure.
+ (merge fdf4f6c79b as/merge-attr-sleep later to maint).
+
+ * Portability update and workaround for builds on recent Mac OS X.
+ (merge a296bc0132 ls/macos-update later to maint).
+
+ * Using a %(HEAD) placeholder in "for-each-ref --format=" option
+ caused the command to segfault when on an unborn branch.
+ (merge 84679d470d jc/for-each-ref-head-segfault-fix later to maint).
+
+ * "git rebase -i" did not work well with the core.commentchar
+ configuration variable for two reasons, both of which have been
+ fixed.
+ (merge 882cd23777 js/rebase-i-commentchar-fix later to maint).
+
+ * Other minor doc, test and build updates and code cleanups.
+ (merge 5c238e29a8 jk/common-main later to maint).
+ (merge 5a5749e45b ak/pre-receive-hook-template-modefix later to maint).
+ (merge 6d834ac8f1 jk/rebase-config-insn-fmt-docfix later to maint).
+ (merge de9f7fa3b0 rs/commit-pptr-simplify later to maint).
+ (merge 4259d693fc sc/fmt-merge-msg-doc-markup-fix later to maint).
+ (merge 28fab7b23d nd/test-helpers later to maint).
+ (merge c2bb0c1d1e rs/cocci later to maint).
+ (merge 3285b7badb ps/common-info-doc later to maint).
+ (merge 2b090822e8 nd/worktree-lock later to maint).
+ (merge 4bd488ea7c jk/create-branch-remove-unused-param later to maint).
+ (merge 974e0044d6 tk/diffcore-delta-remove-unused later to maint).
diff --git a/Documentation/RelNotes/2.11.1.txt b/Documentation/RelNotes/2.11.1.txt
new file mode 100644
index 0000000..9cd14c8
--- /dev/null
+++ b/Documentation/RelNotes/2.11.1.txt
@@ -0,0 +1,168 @@
+Git v2.11.1 Release Notes
+=========================
+
+Fixes since v2.11
+-----------------
+
+ * The default Travis-CI configuration specifies newer P4 and GitLFS.
+
+ * The character width table has been updated to match Unicode 9.0
+
+ * Update the isatty() emulation for Windows by updating the previous
+ hack that depended on internals of (older) MSVC runtime.
+
+ * "git rev-parse --symbolic" failed with a more recent notation like
+ "HEAD^-1" and "HEAD^!".
+
+ * An empty directory in a working tree that can simply be nuked used
+ to interfere while merging or cherry-picking a change to create a
+ submodule directory there, which has been fixed..
+
+ * The code in "git push" to compute if any commit being pushed in the
+ superproject binds a commit in a submodule that hasn't been pushed
+ out was overly inefficient, making it unusable even for a small
+ project that does not have any submodule but have a reasonable
+ number of refs.
+
+ * "git push --dry-run --recurse-submodule=on-demand" wasn't
+ "--dry-run" in the submodules.
+
+ * The output from "git worktree list" was made in readdir() order,
+ and was unstable.
+
+ * mergetool.<tool>.trustExitCode configuration variable did not apply
+ to built-in tools, but now it does.
+
+ * "git p4" LFS support was broken when LFS stores an empty blob.
+
+ * Fix a corner case in merge-recursive regression that crept in
+ during 2.10 development cycle.
+
+ * Update the error messages from the dumb-http client when it fails
+ to obtain loose objects; we used to give sensible error message
+ only upon 404 but we now forbid unexpected redirects that needs to
+ be reported with something sensible.
+
+ * When diff.renames configuration is on (and with Git 2.9 and later,
+ it is enabled by default, which made it worse), "git stash"
+ misbehaved if a file is removed and another file with a very
+ similar content is added.
+
+ * "git diff --no-index" did not take "--no-abbrev" option.
+
+ * "git difftool --dir-diff" had a minor regression when started from
+ a subdirectory, which has been fixed.
+
+ * "git commit --allow-empty --only" (no pathspec) with dirty index
+ ought to be an acceptable way to create a new commit that does not
+ change any paths, but it was forbidden, perhaps because nobody
+ needed it so far.
+
+ * A pathname that begins with "//" or "\\" on Windows is special but
+ path normalization logic was unaware of it.
+
+ * "git pull --rebase", when there is no new commits on our side since
+ we forked from the upstream, should be able to fast-forward without
+ invoking "git rebase", but it didn't.
+
+ * The way to specify hotkeys to "xxdiff" that is used by "git
+ mergetool" has been modernized to match recent versions of xxdiff.
+
+ * Unlike "git am --abort", "git cherry-pick --abort" moved HEAD back
+ to where cherry-pick started while picking multiple changes, when
+ the cherry-pick stopped to ask for help from the user, and the user
+ did "git reset --hard" to a different commit in order to re-attempt
+ the operation.
+
+ * Code cleanup in shallow boundary computation.
+
+ * A recent update to receive-pack to make it easier to drop garbage
+ objects made it clear that GIT_ALTERNATE_OBJECT_DIRECTORIES cannot
+ have a pathname with a colon in it (no surprise!), and this in turn
+ made it impossible to push into a repository at such a path. This
+ has been fixed by introducing a quoting mechanism used when
+ appending such a path to the colon-separated list.
+
+ * The function usage_msg_opt() has been updated to say "fatal:"
+ before the custom message programs give, when they want to die
+ with a message about wrong command line options followed by the
+ standard usage string.
+
+ * "git index-pack --stdin" needs an access to an existing repository,
+ but "git index-pack file.pack" to generate an .idx file that
+ corresponds to a packfile does not.
+
+ * Fix for NDEBUG builds.
+
+ * A lazy "git push" without refspec did not internally use a fully
+ specified refspec to perform 'current', 'simple', or 'upstream'
+ push, causing unnecessary "ambiguous ref" errors.
+
+ * "git p4" misbehaved when swapping a directory and a symbolic link.
+
+ * Even though an fix was attempted in Git 2.9.3 days, but running
+ "git difftool --dir-diff" from a subdirectory never worked. This
+ has been fixed.
+
+ * "git p4" that tracks multile p4 paths imported a single changelist
+ that touches files in these multiple paths as one commit, followed
+ by many empty commits. This has been fixed.
+
+ * A potential but unlikely buffer overflow in Windows port has been
+ fixed.
+
+ * When the http server gives an incomplete response to a smart-http
+ rpc call, it could lead to client waiting for a full response that
+ will never come. Teach the client side to notice this condition
+ and abort the transfer.
+
+ * Some platforms no longer understand "latin-1" that is still seen in
+ the wild in e-mail headers; replace them with "iso-8859-1" that is
+ more widely known when conversion fails from/to it.
+
+ * Update the procedure to generate "tags" for developer support.
+
+ * Update the definition of the MacOSX test environment used by
+ TravisCI.
+
+ * A few git-svn updates.
+
+ * Compression setting for producing packfiles were spread across
+ three codepaths, one of which did not honor any configuration.
+ Unify these so that all of them honor core.compression and
+ pack.compression variables the same way.
+
+ * "git fast-import" sometimes mishandled while rebalancing notes
+ tree, which has been fixed.
+
+ * Recent update to the default abbreviation length that auto-scales
+ lacked documentation update, which has been corrected.
+
+ * Leakage of lockfiles in the config subsystem has been fixed.
+
+ * It is natural that "git gc --auto" may not attempt to pack
+ everything into a single pack, and there is no point in warning
+ when the user has configured the system to use the pack bitmap,
+ leading to disabling further "gc".
+
+ * "git archive" did not read the standard configuration files, and
+ failed to notice a file that is marked as binary via the userdiff
+ driver configuration.
+
+ * "git blame --porcelain" misidentified the "previous" <commit, path>
+ pair (aka "source") when contents came from two or more files.
+
+ * "git rebase -i" with a recent update started showing an incorrect
+ count when squashing more than 10 commits.
+
+ * "git <cmd> @{push}" on a detached HEAD used to segfault; it has
+ been corrected to error out with a message.
+
+ * Tighten a test to avoid mistaking an extended ERE regexp engine as
+ a PRE regexp engine.
+
+ * Typing ^C to pager, which usually does not kill it, killed Git and
+ took the pager down as a collateral damage in certain process-tree
+ structure. This has been fixed.
+
+Also contains various documentation updates and code clean-ups.
diff --git a/Documentation/blame-options.txt b/Documentation/blame-options.txt
index 02cb684..2669b87 100644
--- a/Documentation/blame-options.txt
+++ b/Documentation/blame-options.txt
@@ -28,12 +28,13 @@ include::line-range-format.txt[]
-S <revs-file>::
Use revisions from revs-file instead of calling linkgit:git-rev-list[1].
---reverse::
+--reverse <rev>..<rev>::
Walk history forward instead of backward. Instead of showing
the revision in which a line appeared, this shows the last
revision in which a line has existed. This requires a range of
revision like START..END where the path to blame exists in
- START.
+ START. `git blame --reverse START` is taken as `git blame
+ --reverse START..HEAD` for convenience.
-p::
--porcelain::
diff --git a/Documentation/config.txt b/Documentation/config.txt
index cbae7a6..1fee83c 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -783,10 +783,11 @@ core.sparseCheckout::
linkgit:git-read-tree[1] for more information.
core.abbrev::
- Set the length object names are abbreviated to. If unspecified,
- many commands abbreviate to 7 hexdigits, which may not be enough
- for abbreviated object names to stay unique for sufficiently long
- time.
+ Set the length object names are abbreviated to. If
+ unspecified or set to "auto", an appropriate value is
+ computed based on the approximate number of packed objects
+ in your repository, which hopefully is enough for
+ abbreviated object names to stay unique for some time.
add.ignoreErrors::
add.ignore-errors (deprecated)::
@@ -1409,7 +1410,9 @@ gc.pruneExpire::
Override the grace period with this config variable. The value
"now" may be used to disable this grace period and always prune
unreachable objects immediately, or "never" may be used to
- suppress pruning.
+ suppress pruning. This feature helps prevent corruption when
+ 'git gc' runs concurrently with another process writing to the
+ repository; see the "NOTES" section of linkgit:git-gc[1].
gc.worktreePruneExpire::
When 'git gc' is run, it calls
@@ -1736,6 +1739,20 @@ http.emptyAuth::
a username in the URL, as libcurl normally requires a username for
authentication.
+http.delegation::
+ Control GSSAPI credential delegation. The delegation is disabled
+ by default in libcurl since version 7.21.7. Set parameter to tell
+ the server what it is allowed to delegate when it comes to user
+ credentials. Used with GSS/kerberos. Possible values are:
++
+--
+* `none` - Don't allow any delegation.
+* `policy` - Delegates if and only if the OK-AS-DELEGATE flag is set in the
+ Kerberos service ticket, which is a matter of realm policy.
+* `always` - Unconditionally allow the server to delegate.
+--
+
+
http.extraHeader::
Pass an additional HTTP header when communicating with a server. If
more than one such entry exists, all of them are added as extra
@@ -1877,6 +1894,16 @@ http.userAgent::
of common USER_AGENT strings (but not including those like git/1.7.1).
Can be overridden by the `GIT_HTTP_USER_AGENT` environment variable.
+http.followRedirects::
+ Whether git should follow HTTP redirects. If set to `true`, git
+ will transparently follow any redirect issued by a server it
+ encounters. If set to `false`, git will treat all redirects as
+ errors. If set to `initial`, git will follow redirects only for
+ the initial request to a remote, but not for subsequent
+ follow-up HTTP requests. Since git uses the redirected URL as
+ the base for the follow-up requests, this is generally
+ sufficient. The default is `initial`.
+
http.<url>.*::
Any of the http.* options above can be applied selectively to some URLs.
For a config key to match a URL, each element of the config key is
@@ -2523,6 +2550,12 @@ receive.unpackLimit::
especially on slow filesystems. If not set, the value of
`transfer.unpackLimit` is used instead.
+receive.maxInputSize::
+ If the size of the incoming pack stream is larger than this
+ limit, then git-receive-pack will error out, instead of
+ accepting the pack file. If not set or set to 0, then the size
+ is unlimited.
+
receive.denyDeletes::
If set to true, git-receive-pack will deny a ref update that deletes
the ref. Use this to prevent such a ref deletion via a push.
@@ -2854,6 +2887,18 @@ submodule.fetchJobs::
in parallel. A value of 0 will give some reasonable default.
If unset, it defaults to 1.
+submodule.alternateLocation::
+ Specifies how the submodules obtain alternates when submodules are
+ cloned. Possible values are `no`, `superproject`.
+ By default `no` is assumed, which doesn't add references. When the
+ value is set to `superproject` the submodule to be cloned computes
+ its alternates location relative to the superprojects alternate.
+
+submodule.alternateErrorStrategy
+ Specifies how to treat errors with the alternates for a submodule
+ as computed via `submodule.alternateLocation`. Possible values are
+ `ignore`, `info`, `die`. Default is `die`.
+
tag.forceSignAnnotated::
A boolean to specify whether annotated tags created should be GPG signed.
If `--annotate` is specified on the command line, it takes
@@ -2898,6 +2943,11 @@ is omitted from the advertisements but `refs/heads/master` and
`refs/namespaces/bar/refs/heads/master` are still advertised as so-called
"have" lines. In order to match refs before stripping, add a `^` in front of
the ref name. If you combine `!` and `^`, `!` must be specified first.
++
+Even if you hide refs, a client may still be able to steal the target
+objects via the techniques described in the "SECURITY" section of the
+linkgit:gitnamespaces[7] man page; it's best to keep private data in a
+separate repository.
transfer.unpackLimit::
When `fetch.unpackLimit` or `receive.unpackLimit` are
@@ -2907,7 +2957,7 @@ transfer.unpackLimit::
uploadarchive.allowUnreachable::
If true, allow clients to use `git archive --remote` to request
any tree, whether reachable from the ref tips or not. See the
- discussion in the `SECURITY` section of
+ discussion in the "SECURITY" section of
linkgit:git-upload-archive[1] for more details. Defaults to
`false`.
@@ -2921,12 +2971,23 @@ uploadpack.allowTipSHA1InWant::
When `uploadpack.hideRefs` is in effect, allow `upload-pack`
to accept a fetch request that asks for an object at the tip
of a hidden ref (by default, such a request is rejected).
- see also `uploadpack.hideRefs`.
+ See also `uploadpack.hideRefs`. Even if this is false, a client
+ may be able to steal objects via the techniques described in the
+ "SECURITY" section of the linkgit:gitnamespaces[7] man page; it's
+ best to keep private data in a separate repository.
uploadpack.allowReachableSHA1InWant::
Allow `upload-pack` to accept a fetch request that asks for an
object that is reachable from any ref tip. However, note that
calculating object reachability is computationally expensive.
+ Defaults to `false`. Even if this is false, a client may be able
+ to steal objects via the techniques described in the "SECURITY"
+ section of the linkgit:gitnamespaces[7] man page; it's best to
+ keep private data in a separate repository.
+
+uploadpack.allowAnySHA1InWant::
+ Allow `upload-pack` to accept a fetch request that asks for any
+ object at all.
Defaults to `false`.
uploadpack.keepAlive::
diff --git a/Documentation/date-formats.txt b/Documentation/date-formats.txt
index 35e8da2..6926e0a 100644
--- a/Documentation/date-formats.txt
+++ b/Documentation/date-formats.txt
@@ -11,7 +11,7 @@ Git internal format::
It is `<unix timestamp> <time zone offset>`, where `<unix
timestamp>` is the number of seconds since the UNIX epoch.
`<time zone offset>` is a positive or negative offset from UTC.
- For example CET (which is 2 hours ahead UTC) is `+0200`.
+ For example CET (which is 1 hour ahead of UTC) is `+0100`.
RFC 2822::
The standard email format as described by RFC 2822, for example
diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt
index d5a5b17..58f4bd6 100644
--- a/Documentation/diff-config.txt
+++ b/Documentation/diff-config.txt
@@ -122,10 +122,11 @@ diff.suppressBlankEmpty::
diff.submodule::
Specify the format in which differences in submodules are
- shown. The "log" format lists the commits in the range like
- linkgit:git-submodule[1] `summary` does. The "short" format
- format just shows the names of the commits at the beginning
- and end of the range. Defaults to short.
+ shown. The "short" format just shows the names of the commits
+ at the beginning and end of the range. The "log" format lists
+ the commits in the range like linkgit:git-submodule[1] `summary`
+ does. The "diff" format shows an inline diff of the changed
+ contents of the submodule. Defaults to "short".
diff.wordRegex::
A POSIX Extended Regular Expression used to determine what is a "word"
@@ -170,10 +171,11 @@ diff.tool::
include::mergetools-diff.txt[]
+diff.indentHeuristic::
diff.compactionHeuristic::
- Set this option to `true` to enable an experimental heuristic that
- shifts the hunk boundary in an attempt to make the resulting
- patch easier to read.
+ Set one of these options to `true` to enable one of two
+ experimental heuristics that shift diff hunk boundaries to
+ make patches easier to read.
diff.algorithm::
Choose a diff algorithm. The variants are as follows:
@@ -191,3 +193,9 @@ diff.algorithm::
low-occurrence common elements".
--
+
+
+diff.wsErrorHighlight::
+ A comma separated list of `old`, `new`, `context`, that
+ specifies how whitespace errors on lines are highlighted
+ with `color.diff.whitespace`. Can be overridden by the
+ command line option `--ws-error-highlight=<kind>`
diff --git a/Documentation/diff-heuristic-options.txt b/Documentation/diff-heuristic-options.txt
new file mode 100644
index 0000000..36cb549
--- /dev/null
+++ b/Documentation/diff-heuristic-options.txt
@@ -0,0 +1,7 @@
+--indent-heuristic::
+--no-indent-heuristic::
+--compaction-heuristic::
+--no-compaction-heuristic::
+ These are to help debugging and tuning experimental heuristics
+ (which are off by default) that shift diff hunk boundaries to
+ make patches easier to read.
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 705a873..e6215c3 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -63,12 +63,7 @@ ifndef::git-format-patch[]
Synonym for `-p --raw`.
endif::git-format-patch[]
---compaction-heuristic::
---no-compaction-heuristic::
- These are to help debugging and tuning an experimental
- heuristic (which is off by default) that shifts the hunk
- boundary in an attempt to make the resulting patch easier
- to read.
+include::diff-heuristic-options.txt[]
--minimal::
Spend extra time to make sure the smallest possible
@@ -210,13 +205,16 @@ any of those replacements occurred.
of the `--diff-filter` option on what the status letters mean.
--submodule[=<format>]::
- Specify how differences in submodules are shown. When `--submodule`
- or `--submodule=log` is given, the 'log' format is used. This format lists
- the commits in the range like linkgit:git-submodule[1] `summary` does.
- Omitting the `--submodule` option or specifying `--submodule=short`,
- uses the 'short' format. This format just shows the names of the commits
- at the beginning and end of the range. Can be tweaked via the
- `diff.submodule` configuration variable.
+ Specify how differences in submodules are shown. When specifying
+ `--submodule=short` the 'short' format is used. This format just
+ shows the names of the commits at the beginning and end of the range.
+ When `--submodule` or `--submodule=log` is specified, the 'log'
+ format is used. This format lists the commits in the range like
+ linkgit:git-submodule[1] `summary` does. When `--submodule=diff`
+ is specified, the 'diff' format is used. This format shows an
+ inline diff of the changes in the submodule contents between the
+ commit range. Defaults to `diff.submodule` or the 'short' format
+ if the config option is unset.
--color[=<when>]::
Show colored diff.
@@ -310,6 +308,8 @@ ifndef::git-format-patch[]
lines are highlighted. E.g. `--ws-error-highlight=new,old`
highlights whitespace errors on both deleted and added lines.
`all` can be used as a short-hand for `old,new,context`.
+ The `diff.wsErrorHighlight` configuration variable can be
+ used to specify the default behaviour.
endif::git-format-patch[]
@@ -569,5 +569,16 @@ endif::git-format-patch[]
--no-prefix::
Do not show any source or destination prefix.
+--line-prefix=<prefix>::
+ Prepend an additional prefix to every line of output.
+
+--ita-invisible-in-index::
+ By default entries added by "git add -N" appear as an existing
+ empty file in "git diff" and a new file in "git diff --cached".
+ This option makes the entry appear as a new file in "git diff"
+ and non-existent in "git diff --cached". This option could be
+ reverted with `--ita-visible-in-index`. Both options are
+ experimental and could be removed in future.
+
For more detailed explanation on these common options, see also
linkgit:gitdiffcore[7].
diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt
index 9eab1f5..fb6bebb 100644
--- a/Documentation/fetch-options.txt
+++ b/Documentation/fetch-options.txt
@@ -14,6 +14,20 @@
linkgit:git-clone[1]), deepen or shorten the history to the specified
number of commits. Tags for the deepened commits are not fetched.
+--deepen=<depth>::
+ Similar to --depth, except it specifies the number of commits
+ from the current shallow boundary instead of from the tip of
+ each remote branch history.
+
+--shallow-since=<date>::
+ Deepen or shorten the history of a shallow repository to
+ include all reachable commits after <date>.
+
+--shallow-exclude=<revision>::
+ Deepen or shorten the history of a shallow repository to
+ exclude commits reachable from a specified remote branch or tag.
+ This option can be specified multiple times.
+
--unshallow::
If the source repository is complete, convert a shallow
repository to a complete one, removing all the limitations
diff --git a/Documentation/git-annotate.txt b/Documentation/git-annotate.txt
index 05fd482..94be4b8 100644
--- a/Documentation/git-annotate.txt
+++ b/Documentation/git-annotate.txt
@@ -23,6 +23,7 @@ familiar command name for people coming from other SCM systems.
OPTIONS
-------
include::blame-options.txt[]
+include::diff-heuristic-options.txt[]
SEE ALSO
--------
diff --git a/Documentation/git-bisect.txt b/Documentation/git-bisect.txt
index 2bb9a57..bdd915a 100644
--- a/Documentation/git-bisect.txt
+++ b/Documentation/git-bisect.txt
@@ -18,8 +18,8 @@ on the subcommand:
git bisect start [--term-{old,good}=<term> --term-{new,bad}=<term>]
[--no-checkout] [<bad> [<good>...]] [--] [<paths>...]
- git bisect (bad|new) [<rev>]
- git bisect (good|old) [<rev>...]
+ git bisect (bad|new|<term-new>) [<rev>]
+ git bisect (good|old|<term-old>) [<rev>...]
git bisect terms [--term-good | --term-bad]
git bisect skip [(<rev>|<range>)...]
git bisect reset [<commit>]
diff --git a/Documentation/git-blame.txt b/Documentation/git-blame.txt
index ba54175..fdc3aea 100644
--- a/Documentation/git-blame.txt
+++ b/Documentation/git-blame.txt
@@ -10,7 +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>]
- [--progress] [--abbrev=<n>] [<rev> | --contents <file> | --reverse <rev>]
+ [--progress] [--abbrev=<n>] [<rev> | --contents <file> | --reverse <rev>..<rev>]
[--] <file>
DESCRIPTION
@@ -89,6 +89,8 @@ include::blame-options.txt[]
abbreviated object name, use <n>+1 digits. Note that 1 column
is used for a caret to mark the boundary commit.
+include::diff-heuristic-options.txt[]
+
THE PORCELAIN FORMAT
--------------------
diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt
index 18d03d8..204541c 100644
--- a/Documentation/git-cat-file.txt
+++ b/Documentation/git-cat-file.txt
@@ -9,18 +9,22 @@ git-cat-file - Provide content or type and size information for repository objec
SYNOPSIS
--------
[verse]
-'git cat-file' (-t [--allow-unknown-type]| -s [--allow-unknown-type]| -e | -p | <type> | --textconv ) <object>
-'git cat-file' (--batch | --batch-check) [--follow-symlinks]
+'git cat-file' (-t [--allow-unknown-type]| -s [--allow-unknown-type]| -e | -p | <type> | --textconv | --filters ) [--path=<path>] <object>
+'git cat-file' (--batch | --batch-check) [ --textconv | --filters ] [--follow-symlinks]
DESCRIPTION
-----------
In its first form, the command provides the content or the type of an object in
the repository. The type is required unless `-t` or `-p` is used to find the
-object type, or `-s` is used to find the object size, or `--textconv` is used
-(which implies type "blob").
+object type, or `-s` is used to find the object size, or `--textconv` or
+`--filters` is used (which imply type "blob").
In the second form, a list of objects (separated by linefeeds) is provided on
-stdin, and the SHA-1, type, and size of each object is printed on stdout.
+stdin, and the SHA-1, type, and size of each object is printed on stdout. The
+output format can be overridden using the optional `<format>` argument. If
+either `--textconv` or `--filters` was specified, the input is expected to
+list the object names followed by the path name, separated by a single white
+space, so that the appropriate drivers can be determined.
OPTIONS
-------
@@ -54,19 +58,35 @@ OPTIONS
--textconv::
Show the content as transformed by a textconv filter. In this case,
- <object> has be of the form <tree-ish>:<path>, or :<path> in order
- to apply the filter to the content recorded in the index at <path>.
+ <object> has to be of the form <tree-ish>:<path>, or :<path> in
+ order to apply the filter to the content recorded in the index at
+ <path>.
+
+--filters::
+ Show the content as converted by the filters configured in
+ the current working tree for the given <path> (i.e. smudge filters,
+ end-of-line conversion, etc). In this case, <object> has to be of
+ the form <tree-ish>:<path>, or :<path>.
+
+--path=<path>::
+ For use with --textconv or --filters, to allow specifying an object
+ name and a path separately, e.g. when it is difficult to figure out
+ the revision from which the blob came.
--batch::
--batch=<format>::
Print object information and contents for each object provided
- on stdin. May not be combined with any other options or arguments.
- See the section `BATCH OUTPUT` below for details.
+ on stdin. May not be combined with any other options or arguments
+ except `--textconv` or `--filters`, in which case the input lines
+ also need to specify the path, separated by white space. See the
+ section `BATCH OUTPUT` below for details.
--batch-check::
--batch-check=<format>::
Print object information for each object provided on stdin. May
- not be combined with any other options or arguments. See the
+ not be combined with any other options or arguments except
+ `--textconv` or `--filters`, in which case the input lines also
+ need to specify the path, separated by white space. See the
section `BATCH OUTPUT` below for details.
--batch-all-objects::
diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt
index ec41d3d..35cc34b 100644
--- a/Documentation/git-clone.txt
+++ b/Documentation/git-clone.txt
@@ -90,13 +90,16 @@ If you want to break the dependency of a repository cloned with `-s` 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.
---reference <repository>::
+--reference[-if-able] <repository>::
If the reference repository is on the local machine,
automatically setup `.git/objects/info/alternates` to
obtain objects from the reference repository. Using
an already existing repository as an alternate will
require fewer objects to be copied from the repository
being cloned, reducing network and local storage costs.
+ When using the `--reference-if-able`, a non existing
+ directory is skipped with a warning instead of aborting
+ the clone.
+
*NOTE*: see the NOTE for the `--shared` option, and also the
`--dissociate` option.
@@ -194,6 +197,14 @@ objects from the source repository into a pack in the cloned repository.
tips of all branches. If you want to clone submodules shallowly,
also pass `--shallow-submodules`.
+--shallow-since=<date>::
+ Create a shallow clone with a history after the specified time.
+
+--shallow-exclude=<revision>::
+ Create a shallow clone with a history, excluding commits
+ reachable from a specified remote branch or tag. This option
+ can be specified multiple times.
+
--[no-]single-branch::
Clone only the history leading to the tip of a single branch,
either specified by the `--branch` option or the primary
diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
index f2ab0ee..4f8f20a 100644
--- a/Documentation/git-commit.txt
+++ b/Documentation/git-commit.txt
@@ -265,7 +265,8 @@ FROM UPSTREAM REBASE" section in linkgit:git-rebase[1].)
If this option is specified together with `--amend`, then
no paths need to be specified, which can be used to amend
the last commit without committing changes that have
- already been staged.
+ already been staged. If used together with `--allow-empty`
+ paths are also not required, and an empty commit will be created.
-u[<mode>]::
--untracked-files[=<mode>]::
diff --git a/Documentation/git-count-objects.txt b/Documentation/git-count-objects.txt
index 2ff3568..cb9b4d2 100644
--- a/Documentation/git-count-objects.txt
+++ b/Documentation/git-count-objects.txt
@@ -38,6 +38,11 @@ objects nor valid packs
+
size-garbage: disk space consumed by garbage files, in KiB (unless -H is
specified)
++
+alternate: absolute path of alternate object databases; may appear
+multiple times, one line per path. Note that if the path contains
+non-printable characters, it may be surrounded by double-quotes and
+contain C-style backslashed escape sequences.
-H::
--human-readable::
diff --git a/Documentation/git-fetch-pack.txt b/Documentation/git-fetch-pack.txt
index 24417ee..f7ebe36 100644
--- a/Documentation/git-fetch-pack.txt
+++ b/Documentation/git-fetch-pack.txt
@@ -87,6 +87,20 @@ be in a separate packet, and the list must end with a flush packet.
'git-upload-pack' treats the special depth 2147483647 as
infinite even if there is an ancestor-chain that long.
+--shallow-since=<date>::
+ Deepen or shorten the history of a shallow'repository to
+ include all reachable commits after <date>.
+
+--shallow-exclude=<revision>::
+ Deepen or shorten the history of a shallow repository to
+ exclude commits reachable from a specified remote branch or tag.
+ This option can be specified multiple times.
+
+--deepen-relative::
+ Argument --depth specifies the number of commits from the
+ current shallow boundary instead of from the tip of each
+ remote branch history.
+
--no-progress::
Do not show the progress.
@@ -105,9 +119,9 @@ be in a separate packet, and the list must end with a flush packet.
$GIT_DIR (e.g. "HEAD", "refs/heads/master"). When
unspecified, update from all heads the remote side has.
+
-If the remote has enabled the options `uploadpack.allowTipSHA1InWant` or
-`uploadpack.allowReachableSHA1InWant`, they may alternatively be 40-hex
-sha1s present on the remote.
+If the remote has enabled the options `uploadpack.allowTipSHA1InWant`,
+`uploadpack.allowReachableSHA1InWant`, or `uploadpack.allowAnySHA1InWant`,
+they may alternatively be 40-hex sha1s present on the remote.
SEE ALSO
--------
diff --git a/Documentation/git-fetch.txt b/Documentation/git-fetch.txt
index 9e42169..b153aef 100644
--- a/Documentation/git-fetch.txt
+++ b/Documentation/git-fetch.txt
@@ -192,6 +192,8 @@ The first command fetches the `maint` branch from the repository at
objects will eventually be removed by git's built-in housekeeping (see
linkgit:git-gc[1]).
+include::transfer-data-leaks.txt[]
+
BUGS
----
Using --recurse-submodules can only fetch new commits in already checked
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 9624c84..9b200b3 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -19,7 +19,8 @@ SYNOPSIS
[--start-number <n>] [--numbered-files]
[--in-reply-to=Message-Id] [--suffix=.<sfx>]
[--ignore-if-in-upstream]
- [--subject-prefix=Subject-Prefix] [(--reroll-count|-v) <n>]
+ [--rfc] [--subject-prefix=Subject-Prefix]
+ [(--reroll-count|-v) <n>]
[--to=<email>] [--cc=<email>]
[--[no-]cover-letter] [--quiet] [--notes[=<ref>]]
[<common diff options>]
@@ -172,6 +173,11 @@ will want to ensure that threading is disabled for `git send-email`.
allows for useful naming of a patch series, and can be
combined with the `--numbered` option.
+--rfc::
+ Alias for `--subject-prefix="RFC PATCH"`. RFC means "Request For
+ Comments"; use this when sending an experimental patch for
+ discussion rather than application.
+
-v <n>::
--reroll-count=<n>::
Mark the series as the <n>-th iteration of the topic. The
diff --git a/Documentation/git-gc.txt b/Documentation/git-gc.txt
index bed60f4..852b72c 100644
--- a/Documentation/git-gc.txt
+++ b/Documentation/git-gc.txt
@@ -63,11 +63,10 @@ automatic consolidation of packs.
--prune=<date>::
Prune loose objects older than date (default is 2 weeks ago,
overridable by the config variable `gc.pruneExpire`).
- --prune=all prunes loose objects regardless of their age (do
- not use --prune=all unless you know exactly what you are doing.
- Unless the repository is quiescent, you will lose newly created
- objects that haven't been anchored with the refs and end up
- corrupting your repository). --prune is on by default.
+ --prune=all prunes loose objects regardless of their age and
+ increases the risk of corruption if another process is writing to
+ the repository concurrently; see "NOTES" below. --prune is on by
+ default.
--no-prune::
Do not prune any loose objects.
@@ -138,17 +137,36 @@ default is "2 weeks ago".
Notes
-----
-'git gc' tries very hard to be safe about the garbage it collects. In
+'git gc' tries very hard not to delete objects that are referenced
+anywhere in your repository. In
particular, it will keep not only objects referenced by your current set
of branches and tags, but also objects referenced by the index,
remote-tracking branches, refs saved by 'git filter-branch' in
refs/original/, or reflogs (which may reference commits in branches
that were later amended or rewound).
-
-If you are expecting some objects to be collected and they aren't, check
+If you are expecting some objects to be deleted and they aren't, check
all of those locations and decide whether it makes sense in your case to
remove those references.
+On the other hand, when 'git gc' runs concurrently with another process,
+there is a risk of it deleting an object that the other process is using
+but hasn't created a reference to. This may just cause the other process
+to fail or may corrupt the repository if the other process later adds a
+reference to the deleted object. Git has two features that significantly
+mitigate this problem:
+
+. Any object with modification time newer than the `--prune` date is kept,
+ along with everything reachable from it.
+
+. Most operations that add an object to the database update the
+ modification time of the object if it is already present so that #1
+ applies.
+
+However, these features fall short of a complete solution, so users who
+run commands concurrently have to live with some risk of corruption (which
+seems to be low in practice) unless they turn off automatic garbage
+collection with 'git config gc.auto 0'.
+
HOOKS
-----
diff --git a/Documentation/git-index-pack.txt b/Documentation/git-index-pack.txt
index 7a4e055..1b4b65d 100644
--- a/Documentation/git-index-pack.txt
+++ b/Documentation/git-index-pack.txt
@@ -87,6 +87,8 @@ OPTIONS
Specifying 0 will cause Git to auto-detect the number of CPU's
and use maximum 3 threads.
+--max-input-size=<size>::
+ Die, if the pack is larger than <size>.
Note
----
diff --git a/Documentation/git-interpret-trailers.txt b/Documentation/git-interpret-trailers.txt
index 93d1db6..09074c7 100644
--- a/Documentation/git-interpret-trailers.txt
+++ b/Documentation/git-interpret-trailers.txt
@@ -48,19 +48,22 @@ with only spaces at the end of the commit message part, one blank line
will be added before the new trailer.
Existing trailers are extracted from the input message by looking for
-a group of one or more lines that contain a colon (by default), where
-the group is preceded by one or more empty (or whitespace-only) lines.
+a group of one or more lines that (i) are all trailers, or (ii) contains at
+least one Git-generated or user-configured trailer and consists of at
+least 25% trailers.
+The group must be preceded by one or more empty (or whitespace-only) lines.
The group must either be at the end of the message or be the last
non-whitespace lines before a line that starts with '---'. Such three
minus signs start the patch part of the message.
-When reading trailers, there can be whitespaces before and after the
+When reading trailers, there can be whitespaces after the
token, the separator and the value. There can also be whitespaces
-inside the token and the value.
+inside the token and the value. The value may be split over multiple lines with
+each subsequent line starting with whitespace, like the "folding" in RFC 822.
Note that 'trailers' do not follow and are not intended to follow many
-rules for RFC 822 headers. For example they do not follow the line
-folding rules, the encoding rules and probably many other rules.
+rules for RFC 822 headers. For example they do not follow
+the encoding rules and probably many other rules.
OPTIONS
-------
diff --git a/Documentation/git-ls-files.txt b/Documentation/git-ls-files.txt
index 0d933ac..446209e 100644
--- a/Documentation/git-ls-files.txt
+++ b/Documentation/git-ls-files.txt
@@ -18,7 +18,8 @@ SYNOPSIS
[--exclude-per-directory=<file>]
[--exclude-standard]
[--error-unmatch] [--with-tree=<tree-ish>]
- [--full-name] [--abbrev] [--] [<file>...]
+ [--full-name] [--recurse-submodules]
+ [--abbrev] [--] [<file>...]
DESCRIPTION
-----------
@@ -137,6 +138,10 @@ a space) at the start of each line:
option forces paths to be output relative to the project
top directory.
+--recurse-submodules::
+ Recursively calls ls-files on each submodule in the repository.
+ Currently there is only support for the --cached mode.
+
--abbrev[=<n>]::
Instead of showing the full 40-byte hexadecimal object
lines, show only a partial prefix.
diff --git a/Documentation/git-mergetool.txt b/Documentation/git-mergetool.txt
index e846c2e..3622d66 100644
--- a/Documentation/git-mergetool.txt
+++ b/Documentation/git-mergetool.txt
@@ -79,6 +79,13 @@ success of the resolution after the custom tool has exited.
Prompt before each invocation of the merge resolution program
to give the user a chance to skip the path.
+-O<orderfile>::
+ Process files in the order specified in the
+ <orderfile>, which has one shell glob pattern per line.
+ This overrides the `diff.orderFile` configuration variable
+ (see linkgit:git-config[1]). To cancel `diff.orderFile`,
+ use `-O/dev/null`.
+
TEMPORARY FILES
---------------
`git mergetool` creates `*.orig` backup files while resolving merges.
diff --git a/Documentation/git-pull.txt b/Documentation/git-pull.txt
index d033b25..4470e4b 100644
--- a/Documentation/git-pull.txt
+++ b/Documentation/git-pull.txt
@@ -237,6 +237,8 @@ If you tried a pull which resulted in complex conflicts and
would want to start over, you can recover with 'git reset'.
+include::transfer-data-leaks.txt[]
+
BUGS
----
Using --recurse-submodules can only fetch new commits in already checked
diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt
index 47b77e6..8eefabd 100644
--- a/Documentation/git-push.txt
+++ b/Documentation/git-push.txt
@@ -559,6 +559,8 @@ Commits A and B would no longer belong to a branch with a symbolic name,
and so would be unreachable. As such, these commits would be removed by
a `git gc` command on the origin repository.
+include::transfer-data-leaks.txt[]
+
GIT
---
Part of the linkgit:git[1] suite
diff --git a/Documentation/git-receive-pack.txt b/Documentation/git-receive-pack.txt
index 000ee8d..0ccd5fb 100644
--- a/Documentation/git-receive-pack.txt
+++ b/Documentation/git-receive-pack.txt
@@ -33,6 +33,9 @@ post-update hooks found in the Documentation/howto directory.
option, which tells it if updates to a ref should be denied if they
are not fast-forwards.
+A number of other receive.* config options are available to tweak
+its behavior, see linkgit:git-config[1].
+
OPTIONS
-------
<directory>::
diff --git a/Documentation/git-stash.txt b/Documentation/git-stash.txt
index 92df596..2e9cef0 100644
--- a/Documentation/git-stash.txt
+++ b/Documentation/git-stash.txt
@@ -39,7 +39,8 @@ The latest stash you created is stored in `refs/stash`; older
stashes are found in the reflog of this reference and can be named using
the usual reflog syntax (e.g. `stash@{0}` is the most recently
created stash, `stash@{1}` is the one before it, `stash@{2.hours.ago}`
-is also possible).
+is also possible). Stashes may also be referenced by specifying just the
+stash index (e.g. the integer `n` is equivalent to `stash@{n}`).
OPTIONS
-------
diff --git a/Documentation/git-status.txt b/Documentation/git-status.txt
index e1e8f57..725065e 100644
--- a/Documentation/git-status.txt
+++ b/Documentation/git-status.txt
@@ -32,11 +32,14 @@ OPTIONS
--branch::
Show the branch and tracking info even in short-format.
---porcelain::
+--porcelain[=<version>]::
Give the output in an easy-to-parse format for scripts.
This is similar to the short output, but will remain stable
across Git versions and regardless of user configuration. See
below for details.
++
+The version parameter is used to specify the format version.
+This is optional and defaults to the original version 'v1' format.
--long::
Give the output in the long-format. This is the default.
@@ -96,7 +99,7 @@ configuration variable documented in linkgit:git-config[1].
-z::
Terminate entries with NUL, instead of LF. This implies
- the `--porcelain` output format if no other format is given.
+ the `--porcelain=v1` output format if no other format is given.
--column[=<options>]::
--no-column::
@@ -180,12 +183,12 @@ in which case `XY` are `!!`.
If -b is used the short-format status is preceded by a line
-## branchname tracking info
+ ## branchname tracking info
-Porcelain Format
-~~~~~~~~~~~~~~~~
+Porcelain Format Version 1
+~~~~~~~~~~~~~~~~~~~~~~~~~~
-The porcelain format is similar to the short format, but is guaranteed
+Version 1 porcelain format is similar to the short format, but is guaranteed
not to change in a backwards-incompatible way between Git versions or
based on user configuration. This makes it ideal for parsing by scripts.
The description of the short format above also describes the porcelain
@@ -207,6 +210,124 @@ field from the first filename). Third, filenames containing special
characters are not specially formatted; no quoting or
backslash-escaping is performed.
+Porcelain Format Version 2
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Version 2 format adds more detailed information about the state of
+the worktree and changed items. Version 2 also defines an extensible
+set of easy to parse optional headers.
+
+Header lines start with "#" and are added in response to specific
+command line arguments. Parsers should ignore headers they
+don't recognize.
+
+### Branch Headers
+
+If `--branch` is given, a series of header lines are printed with
+information about the current branch.
+
+ Line Notes
+ ------------------------------------------------------------
+ # branch.oid <commit> | (initial) Current commit.
+ # branch.head <branch> | (detached) Current branch.
+ # branch.upstream <upstream_branch> If upstream is set.
+ # branch.ab +<ahead> -<behind> If upstream is set and
+ the commit is present.
+ ------------------------------------------------------------
+
+### Changed Tracked Entries
+
+Following the headers, a series of lines are printed for tracked
+entries. One of three different line formats may be used to describe
+an entry depending on the type of change. Tracked entries are printed
+in an undefined order; parsers should allow for a mixture of the 3
+line types in any order.
+
+Ordinary changed entries have the following format:
+
+ 1 <XY> <sub> <mH> <mI> <mW> <hH> <hI> <path>
+
+Renamed or copied entries have the following format:
+
+ 2 <XY> <sub> <mH> <mI> <mW> <hH> <hI> <X><score> <path><sep><origPath>
+
+ Field Meaning
+ --------------------------------------------------------
+ <XY> A 2 character field containing the staged and
+ unstaged XY values described in the short format,
+ with unchanged indicated by a "." rather than
+ a space.
+ <sub> A 4 character field describing the submodule state.
+ "N..." when the entry is not a submodule.
+ "S<c><m><u>" when the entry is a submodule.
+ <c> is "C" if the commit changed; otherwise ".".
+ <m> is "M" if it has tracked changes; otherwise ".".
+ <u> is "U" if there are untracked changes; otherwise ".".
+ <mH> The octal file mode in HEAD.
+ <mI> The octal file mode in the index.
+ <mW> The octal file mode in the worktree.
+ <hH> The object name in HEAD.
+ <hI> The object name in the index.
+ <X><score> The rename or copy score (denoting the percentage
+ of similarity between the source and target of the
+ move or copy). For example "R100" or "C75".
+ <path> The pathname. In a renamed/copied entry, this
+ is the path in the index and in the working tree.
+ <sep> When the `-z` option is used, the 2 pathnames are separated
+ with a NUL (ASCII 0x00) byte; otherwise, a tab (ASCII 0x09)
+ byte separates them.
+ <origPath> The pathname in the commit at HEAD. This is only
+ present in a renamed/copied entry, and tells
+ where the renamed/copied contents came from.
+ --------------------------------------------------------
+
+Unmerged entries have the following format; the first character is
+a "u" to distinguish from ordinary changed entries.
+
+ u <xy> <sub> <m1> <m2> <m3> <mW> <h1> <h2> <h3> <path>
+
+ Field Meaning
+ --------------------------------------------------------
+ <XY> A 2 character field describing the conflict type
+ as described in the short format.
+ <sub> A 4 character field describing the submodule state
+ as described above.
+ <m1> The octal file mode in stage 1.
+ <m2> The octal file mode in stage 2.
+ <m3> The octal file mode in stage 3.
+ <mW> The octal file mode in the worktree.
+ <h1> The object name in stage 1.
+ <h2> The object name in stage 2.
+ <h3> The object name in stage 3.
+ <path> The pathname.
+ --------------------------------------------------------
+
+### Other Items
+
+Following the tracked entries (and if requested), a series of
+lines will be printed for untracked and then ignored items
+found in the worktree.
+
+Untracked items have the following format:
+
+ ? <path>
+
+Ignored items have the following format:
+
+ ! <path>
+
+### Pathname Format Notes and -z
+
+When the `-z` option is given, pathnames are printed as is and
+without any quoting and lines are terminated with a NUL (ASCII 0x00)
+byte.
+
+Otherwise, all pathnames will be "C-quoted" if they contain any tab,
+linefeed, double quote, or backslash characters. In C-quoting, these
+characters will be replaced with the corresponding C-style escape
+sequences and the resulting pathname will be double quoted.
+
+
CONFIGURATION
-------------
diff --git a/Documentation/git-svn.txt b/Documentation/git-svn.txt
index 5f9e65b..9bee9b0 100644
--- a/Documentation/git-svn.txt
+++ b/Documentation/git-svn.txt
@@ -664,13 +664,19 @@ creating the branch or tag.
When retrieving svn commits into Git (as part of 'fetch', 'rebase', or
'dcommit' operations), look for the first `From:` or `Signed-off-by:` line
in the log message and use that as the author string.
++
+[verse]
+config key: svn.useLogAuthor
+
--add-author-from::
When committing to svn from Git (as part of 'commit-diff', 'set-tree' or 'dcommit'
operations), if the existing log message doesn't already have a
`From:` or `Signed-off-by:` line, append a `From:` line based on the
Git commit's author string. If you use this, then `--use-log-author`
will retrieve a valid author string for all commits.
-
++
+[verse]
+config key: svn.addAuthorFrom
ADVANCED OPTIONS
----------------
diff --git a/Documentation/git-unpack-objects.txt b/Documentation/git-unpack-objects.txt
index 3e887d1..b3de50d 100644
--- a/Documentation/git-unpack-objects.txt
+++ b/Documentation/git-unpack-objects.txt
@@ -44,6 +44,9 @@ OPTIONS
--strict::
Don't write objects with broken content or links.
+--max-input-size=<size>::
+ Die, if the pack is larger than <size>.
+
GIT
---
Part of the linkgit:git[1] suite
diff --git a/Documentation/git.txt b/Documentation/git.txt
index 89157e2..2a663e5 100644
--- a/Documentation/git.txt
+++ b/Documentation/git.txt
@@ -13,6 +13,7 @@ SYNOPSIS
[--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]
[-p|--paginate|--no-pager] [--no-replace-objects] [--bare]
[--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]
+ [--super-prefix=<path>]
<command> [<args>]
DESCRIPTION
@@ -43,6 +44,12 @@ unreleased) version of Git, that is available from the 'master'
branch of the `git.git` repository.
Documentation for older releases are available here:
+* link:v2.11.1/git.html[documentation for release 2.11.1]
+
+* release notes for
+ link:RelNotes/2.11.1.txt[2.11.1],
+ link:RelNotes/2.11.0.txt[2.11].
+
* link:v2.10.3/git.html[documentation for release 2.10.3]
* release notes for
@@ -611,6 +618,11 @@ foo.bar= ...`) sets `foo.bar` to the empty string.
details. Equivalent to setting the `GIT_NAMESPACE` environment
variable.
+--super-prefix=<path>::
+ Currently for internal use only. Set a prefix which gives a path from
+ above a repository down to its root. One use is to give submodules
+ context about the superproject that invoked it.
+
--bare::
Treat the repository as a bare repository. If GIT_DIR
environment is not set, it is set to the current working
@@ -868,6 +880,12 @@ Git so take care if using a foreign front-end.
specifies a ":" separated (on Windows ";" separated) list
of Git object directories which can be used to search for Git
objects. New objects will not be written to these directories.
++
+ Entries that begin with `"` (double-quote) will be interpreted
+ as C-style quoted paths, removing leading and trailing
+ double-quotes and respecting backslash escapes. E.g., the value
+ `"path-with-\"-and-:-in-it":vanilla-path` has two paths:
+ `path-with-"-and-:-in-it` and `vanilla-path`.
`GIT_DIR`::
If the `GIT_DIR` environment variable is set then it
diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt
index 7aff940..e0b66c1 100644
--- a/Documentation/gitattributes.txt
+++ b/Documentation/gitattributes.txt
@@ -293,7 +293,15 @@ checkout, when the `smudge` command is specified, the command is
fed the blob object from its standard input, and its standard
output is used to update the worktree file. Similarly, the
`clean` command is used to convert the contents of worktree file
-upon checkin.
+upon checkin. By default these commands process only a single
+blob and terminate. If a long running `process` filter is used
+in place of `clean` and/or `smudge` filters, then Git can process
+all blobs with a single filter command invocation for the entire
+life of a single Git command, for example `git add --all`. If a
+long running `process` filter is configured then it always takes
+precedence over a configured single blob filter. See section
+below for the description of the protocol used to communicate with
+a `process` filter.
One use of the content filtering is to massage the content into a shape
that is more convenient for the platform, filesystem, and the user to use.
@@ -373,6 +381,155 @@ not exist, or may have different contents. So, smudge and clean commands
should not try to access the file on disk, but only act as filters on the
content provided to them on standard input.
+Long Running Filter Process
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+If the filter command (a string value) is defined via
+`filter.<driver>.process` then Git can process all blobs with a
+single filter invocation for the entire life of a single Git
+command. This is achieved by using a packet format (pkt-line,
+see technical/protocol-common.txt) based protocol over standard
+input and standard output as follows. All packets, except for the
+"*CONTENT" packets and the "0000" flush packet, are considered
+text and therefore are terminated by a LF.
+
+Git starts the filter when it encounters the first file
+that needs to be cleaned or smudged. After the filter started
+Git sends a welcome message ("git-filter-client"), a list of supported
+protocol version numbers, and a flush packet. Git expects to read a welcome
+response message ("git-filter-server"), exactly one protocol version number
+from the previously sent list, and a flush packet. All further
+communication will be based on the selected version. The remaining
+protocol description below documents "version=2". Please note that
+"version=42" in the example below does not exist and is only there
+to illustrate how the protocol would look like with more than one
+version.
+
+After the version negotiation Git sends a list of all capabilities that
+it supports and a flush packet. Git expects to read a list of desired
+capabilities, which must be a subset of the supported capabilities list,
+and a flush packet as response:
+------------------------
+packet: git> git-filter-client
+packet: git> version=2
+packet: git> version=42
+packet: git> 0000
+packet: git< git-filter-server
+packet: git< version=2
+packet: git< 0000
+packet: git> capability=clean
+packet: git> capability=smudge
+packet: git> capability=not-yet-invented
+packet: git> 0000
+packet: git< capability=clean
+packet: git< capability=smudge
+packet: git< 0000
+------------------------
+Supported filter capabilities in version 2 are "clean" and
+"smudge".
+
+Afterwards Git sends a list of "key=value" pairs terminated with
+a flush packet. The list will contain at least the filter command
+(based on the supported capabilities) and the pathname of the file
+to filter relative to the repository root. Right after the flush packet
+Git sends the content split in zero or more pkt-line packets and a
+flush packet to terminate content. Please note, that the filter
+must not send any response before it received the content and the
+final flush packet. Also note that the "value" of a "key=value" pair
+can contain the "=" character whereas the key would never contain
+that character.
+------------------------
+packet: git> command=smudge
+packet: git> pathname=path/testfile.dat
+packet: git> 0000
+packet: git> CONTENT
+packet: git> 0000
+------------------------
+
+The filter is expected to respond with a list of "key=value" pairs
+terminated with a flush packet. If the filter does not experience
+problems then the list must contain a "success" status. Right after
+these packets the filter is expected to send the content in zero
+or more pkt-line packets and a flush packet at the end. Finally, a
+second list of "key=value" pairs terminated with a flush packet
+is expected. The filter can change the status in the second list
+or keep the status as is with an empty list. Please note that the
+empty list must be terminated with a flush packet regardless.
+
+------------------------
+packet: git< status=success
+packet: git< 0000
+packet: git< SMUDGED_CONTENT
+packet: git< 0000
+packet: git< 0000 # empty list, keep "status=success" unchanged!
+------------------------
+
+If the result content is empty then the filter is expected to respond
+with a "success" status and a flush packet to signal the empty content.
+------------------------
+packet: git< status=success
+packet: git< 0000
+packet: git< 0000 # empty content!
+packet: git< 0000 # empty list, keep "status=success" unchanged!
+------------------------
+
+In case the filter cannot or does not want to process the content,
+it is expected to respond with an "error" status.
+------------------------
+packet: git< status=error
+packet: git< 0000
+------------------------
+
+If the filter experiences an error during processing, then it can
+send the status "error" after the content was (partially or
+completely) sent.
+------------------------
+packet: git< status=success
+packet: git< 0000
+packet: git< HALF_WRITTEN_ERRONEOUS_CONTENT
+packet: git< 0000
+packet: git< status=error
+packet: git< 0000
+------------------------
+
+In case the filter cannot or does not want to process the content
+as well as any future content for the lifetime of the Git process,
+then it is expected to respond with an "abort" status at any point
+in the protocol.
+------------------------
+packet: git< status=abort
+packet: git< 0000
+------------------------
+
+Git neither stops nor restarts the filter process in case the
+"error"/"abort" status is set. However, Git sets its exit code
+according to the `filter.<driver>.required` flag, mimicking the
+behavior of the `filter.<driver>.clean` / `filter.<driver>.smudge`
+mechanism.
+
+If the filter dies during the communication or does not adhere to
+the protocol then Git will stop the filter process and restart it
+with the next file that needs to be processed. Depending on the
+`filter.<driver>.required` flag Git will interpret that as error.
+
+After the filter has processed a blob it is expected to wait for
+the next "key=value" list containing a command. Git will close
+the command pipe on exit. The filter is expected to detect EOF
+and exit gracefully on its own. Git will wait until the filter
+process has stopped.
+
+A long running filter demo implementation can be found in
+`contrib/long-running-filter/example.pl` located in the Git
+core repository. If you develop your own long running filter
+process then the `GIT_TRACE_PACKET` environment variables can be
+very helpful for debugging (see linkgit:git[1]).
+
+Please note that you cannot use an existing `filter.<driver>.clean`
+or `filter.<driver>.smudge` command with `filter.<driver>.process`
+because the former two use a different inter process communication
+protocol than the latter one.
+
+
Interaction between checkin/checkout attributes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/Documentation/gitcore-tutorial.txt b/Documentation/gitcore-tutorial.txt
index 4546fa0..22309cf 100644
--- a/Documentation/gitcore-tutorial.txt
+++ b/Documentation/gitcore-tutorial.txt
@@ -25,7 +25,7 @@ you want to understand Git's internals.
The core Git is often called "plumbing", with the prettier user
interfaces on top of it called "porcelain". You may not want to use the
plumbing directly very often, but it can be good to know what the
-plumbing does for when the porcelain isn't flushing.
+plumbing does when the porcelain isn't flushing.
Back when this document was originally written, many porcelain
commands were shell scripts. For simplicity, it still uses them as
@@ -1368,7 +1368,7 @@ $ git repack
will do it for you. If you followed the tutorial examples, you
would have accumulated about 17 objects in `.git/objects/??/`
directories by now. 'git repack' tells you how many objects it
-packed, and stores the packed file in `.git/objects/pack`
+packed, and stores the packed file in the `.git/objects/pack`
directory.
[NOTE]
@@ -1478,7 +1478,7 @@ You can repack this private repository whenever you feel like.
A recommended work cycle for a "subsystem maintainer" who works
on that project and has an own "public repository" goes like this:
-1. Prepare your work repository, by 'git clone' the public
+1. Prepare your work repository, by running 'git clone' on the public
repository of the "project lead". The URL used for the
initial cloning is stored in the remote.origin.url
configuration variable.
@@ -1543,9 +1543,9 @@ like this:
Working with Others, Shared Repository Style
--------------------------------------------
-If you are coming from CVS background, the style of cooperation
+If you are coming from a CVS background, the style of cooperation
suggested in the previous section may be new to you. You do not
-have to worry. Git supports "shared public repository" style of
+have to worry. Git supports the "shared public repository" style of
cooperation you are probably more familiar with as well.
See linkgit:gitcvs-migration[7] for the details.
@@ -1635,7 +1635,7 @@ $ git show-branch
++* [master~2] Pretty-print messages.
------------
-Note that you should not do Octopus because you can. An octopus
+Note that you should not do Octopus just because you can. An octopus
is a valid thing to do and often makes it easier to view the
commit history if you are merging more than two independent
changes at the same time. However, if you have merge conflicts
diff --git a/Documentation/gitnamespaces.txt b/Documentation/gitnamespaces.txt
index 7685e36..b614969 100644
--- a/Documentation/gitnamespaces.txt
+++ b/Documentation/gitnamespaces.txt
@@ -61,22 +61,4 @@ For a simple local test, you can use linkgit:git-remote-ext[1]:
git clone ext::'git --namespace=foo %s /tmp/prefixed.git'
----------
-SECURITY
---------
-
-Anyone with access to any namespace within a repository can potentially
-access objects from any other namespace stored in the same repository.
-You can't directly say "give me object ABCD" if you don't have a ref to
-it, but you can do some other sneaky things like:
-
-. Claiming to push ABCD, at which point the server will optimize out the
- need for you to actually send it. Now you have a ref to ABCD and can
- fetch it (claiming not to have it, of course).
-
-. Requesting other refs, claiming that you have ABCD, at which point the
- server may generate deltas against ABCD.
-
-None of this causes a problem if you only host public repositories, or
-if everyone who may read one namespace may also read everything in every
-other namespace (for instance, if everyone in an organization has read
-permission to every repository).
+include::transfer-data-leaks.txt[]
diff --git a/Documentation/gitremote-helpers.txt b/Documentation/gitremote-helpers.txt
index a4de50a..9e8681f 100644
--- a/Documentation/gitremote-helpers.txt
+++ b/Documentation/gitremote-helpers.txt
@@ -415,6 +415,17 @@ set by Git if the remote helper has the 'option' capability.
'option depth' <depth>::
Deepens the history of a shallow repository.
+'option deepen-since <timestamp>::
+ Deepens the history of a shallow repository based on time.
+
+'option deepen-not <ref>::
+ Deepens the history of a shallow repository excluding ref.
+ Multiple options add up.
+
+'option deepen-relative {'true'|'false'}::
+ Deepens the history of a shallow repository relative to
+ current boundary. Only valid when used with "option depth".
+
'option followtags' {'true'|'false'}::
If enabled the helper should automatically fetch annotated
tag objects if the object the tag points at was transferred
diff --git a/Documentation/gitweb.conf.txt b/Documentation/gitweb.conf.txt
index a79e350..e632089 100644
--- a/Documentation/gitweb.conf.txt
+++ b/Documentation/gitweb.conf.txt
@@ -246,13 +246,20 @@ $highlight_bin::
Note that 'highlight' feature must be set for gitweb to actually
use syntax highlighting.
+
-*NOTE*: if you want to add support for new file type (supported by
-"highlight" but not used by gitweb), you need to modify `%highlight_ext`
-or `%highlight_basename`, depending on whether you detect type of file
-based on extension (for example "sh") or on its basename (for example
-"Makefile"). The keys of these hashes are extension and basename,
-respectively, and value for given key is name of syntax to be passed via
-`--syntax <syntax>` to highlighter.
+*NOTE*: for a file to be highlighted, its syntax type must be detected
+and that syntax must be supported by "highlight". The default syntax
+detection is minimal, and there are many supported syntax types with no
+detection by default. There are three options for adding syntax
+detection. The first and second priority are `%highlight_basename` and
+`%highlight_ext`, which detect based on basename (the full filename, for
+example "Makefile") and extension (for example "sh"). The keys of these
+hashes are the basename and extension, respectively, and the value for a
+given key is the name of the syntax to be passed via `--syntax <syntax>`
+to "highlight". The last priority is the "highlight" configuration of
+`Shebang` regular expressions to detect the language based on the first
+line in the file, (for example, matching the line "#!/bin/bash"). See
+the highlight documentation and the default config at
+/etc/highlight/filetypes.conf for more details.
+
For example if repositories you are hosting use "phtml" extension for
PHP files, and you want to have correct syntax-highlighting for those
diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt
index 69c289d..3bcee2d 100644
--- a/Documentation/pretty-formats.txt
+++ b/Documentation/pretty-formats.txt
@@ -143,8 +143,14 @@ ifndef::git-rev-list[]
- '%N': commit notes
endif::git-rev-list[]
- '%GG': raw verification message from GPG for a signed commit
-- '%G?': show "G" for a good (valid) signature, "B" for a bad signature,
- "U" for a good signature with unknown validity and "N" for no signature
+- '%G?': show "G" for a good (valid) signature,
+ "B" for a bad signature,
+ "U" for a good signature with unknown validity,
+ "X" for a good signature that has expired,
+ "Y" for a good signature made by an expired key,
+ "R" for a good signature made by a revoked key,
+ "E" if the signature cannot be checked (e.g. missing key)
+ and "N" for no signature
- '%GS': show the name of the signer for a signed commit
- '%GK': show the key used to sign a signed commit
- '%gD': reflog selector, e.g., `refs/stash@{1}` or
diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt
index 4bed5b1..ba11b9c 100644
--- a/Documentation/revisions.txt
+++ b/Documentation/revisions.txt
@@ -283,7 +283,7 @@ empty range that is both reachable and unreachable from HEAD.
Other <rev>{caret} Parent Shorthand Notations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Two other shorthands exist, particularly useful for merge commits,
+Three other shorthands exist, particularly useful for merge commits,
for naming a set that is formed by a commit and its parent commits.
The 'r1{caret}@' notation means all parents of 'r1'.
@@ -291,8 +291,15 @@ The 'r1{caret}@' notation means all parents of 'r1'.
The 'r1{caret}!' notation includes commit 'r1' but excludes all of its parents.
By itself, this notation denotes the single commit 'r1'.
+The '<rev>{caret}-{<n>}' notation includes '<rev>' but excludes the <n>th
+parent (i.e. a shorthand for '<rev>{caret}<n>..<rev>'), with '<n>' = 1 if
+not given. This is typically useful for merge commits where you
+can just pass '<commit>{caret}-' to get all the commits in the branch
+that was merged in merge commit '<commit>' (including '<commit>'
+itself).
+
While '<rev>{caret}<n>' was about specifying a single commit parent, these
-two notations consider all its parents. For example you can say
+three notations also consider its parents. For example you can say
'HEAD{caret}2{caret}@', however you cannot say 'HEAD{caret}@{caret}2'.
Revision Range Summary
@@ -326,6 +333,10 @@ Revision Range Summary
as giving commit '<rev>' and then all its parents prefixed with
'{caret}' to exclude them (and their ancestors).
+'<rev>{caret}-{<n>}', e.g. 'HEAD{caret}-, HEAD{caret}-2'::
+ Equivalent to '<rev>{caret}<n>..<rev>', with '<n>' = 1 if not
+ given.
+
Here are a handful of examples using the Loeliger illustration above,
with each step in the notation's expansion and selection carefully
spelt out:
@@ -339,6 +350,8 @@ spelt out:
C I J F C
B..C = ^B C C
B...C = B ^F C G H D E B C
+ B^- = B^..B
+ = ^B^1 B E I J F B
C^@ = C^1
= F I J F
B^@ = B^1 B^2 B^3
diff --git a/Documentation/technical/api-in-core-index.txt b/Documentation/technical/api-in-core-index.txt
deleted file mode 100644
index adbdbf5..0000000
--- a/Documentation/technical/api-in-core-index.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-in-core index API
-=================
-
-Talk about <read-cache.c> and <cache-tree.c>, things like:
-
-* cache -> the_index macros
-* read_index()
-* write_index()
-* ie_match_stat() and ie_modified(); how they are different and when to
- use which.
-* index_name_pos()
-* remove_index_entry_at()
-* remove_file_from_index()
-* add_file_to_index()
-* add_index_entry()
-* refresh_index()
-* discard_index()
-* cache_tree_invalidate_path()
-* cache_tree_update()
-
-(JC, Linus)
diff --git a/Documentation/technical/api-sha1-array.txt b/Documentation/technical/api-sha1-array.txt
index 3e75497..dcc5294 100644
--- a/Documentation/technical/api-sha1-array.txt
+++ b/Documentation/technical/api-sha1-array.txt
@@ -38,16 +38,20 @@ Functions
`sha1_array_for_each_unique`::
Efficiently iterate over each unique element of the list,
executing the callback function for each one. If the array is
- not sorted, this function has the side effect of sorting it.
+ not sorted, this function has the side effect of sorting it. If
+ the callback returns a non-zero value, the iteration ends
+ immediately and the callback's return is propagated; otherwise,
+ 0 is returned.
Examples
--------
-----------------------------------------
-void print_callback(const unsigned char sha1[20],
+int print_callback(const unsigned char sha1[20],
void *data)
{
printf("%s\n", sha1_to_hex(sha1));
+ return 0; /* always continue */
}
void some_func(void)
diff --git a/Documentation/technical/pack-protocol.txt b/Documentation/technical/pack-protocol.txt
index 736f389..c59ac99 100644
--- a/Documentation/technical/pack-protocol.txt
+++ b/Documentation/technical/pack-protocol.txt
@@ -219,7 +219,9 @@ out of what the server said it could do with the first 'want' line.
shallow-line = PKT-LINE("shallow" SP obj-id)
- depth-request = PKT-LINE("deepen" SP depth)
+ depth-request = PKT-LINE("deepen" SP depth) /
+ PKT-LINE("deepen-since" SP timestamp) /
+ PKT-LINE("deepen-not" SP ref)
first-want = PKT-LINE("want" SP obj-id SP capability-list)
additional-want = PKT-LINE("want" SP obj-id)
diff --git a/Documentation/technical/protocol-capabilities.txt b/Documentation/technical/protocol-capabilities.txt
index 4c28d3a..26dcc6f 100644
--- a/Documentation/technical/protocol-capabilities.txt
+++ b/Documentation/technical/protocol-capabilities.txt
@@ -179,6 +179,31 @@ This capability adds "deepen", "shallow" and "unshallow" commands to
the fetch-pack/upload-pack protocol so clients can request shallow
clones.
+deepen-since
+------------
+
+This capability adds "deepen-since" command to fetch-pack/upload-pack
+protocol so the client can request shallow clones that are cut at a
+specific time, instead of depth. Internally it's equivalent of doing
+"rev-list --max-age=<timestamp>" on the server side. "deepen-since"
+cannot be used with "deepen".
+
+deepen-not
+----------
+
+This capability adds "deepen-not" command to fetch-pack/upload-pack
+protocol so the client can request shallow clones that are cut at a
+specific revision, instead of depth. Internally it's equivalent of
+doing "rev-list --not <rev>" on the server side. "deepen-not"
+cannot be used with "deepen", but can be used with "deepen-since".
+
+deepen-relative
+---------------
+
+If this capability is requested by the client, the semantics of
+"deepen" command is changed. The "depth" argument is the depth from
+the current shallow boundary, instead of the depth from remote refs.
+
no-progress
-----------
diff --git a/Documentation/transfer-data-leaks.txt b/Documentation/transfer-data-leaks.txt
new file mode 100644
index 0000000..914bacc
--- /dev/null
+++ b/Documentation/transfer-data-leaks.txt
@@ -0,0 +1,30 @@
+SECURITY
+--------
+The fetch and push protocols are not designed to prevent one side from
+stealing data from the other repository that was not intended to be
+shared. If you have private data that you need to protect from a malicious
+peer, your best option is to store it in another repository. This applies
+to both clients and servers. In particular, namespaces on a server are not
+effective for read access control; you should only grant read access to a
+namespace to clients that you would trust with read access to the entire
+repository.
+
+The known attack vectors are as follows:
+
+. The victim sends "have" lines advertising the IDs of objects it has that
+ are not explicitly intended to be shared but can be used to optimize the
+ transfer if the peer also has them. The attacker chooses an object ID X
+ to steal and sends a ref to X, but isn't required to send the content of
+ X because the victim already has it. Now the victim believes that the
+ attacker has X, and it sends the content of X back to the attacker
+ later. (This attack is most straightforward for a client to perform on a
+ server, by creating a ref to X in the namespace the client has access
+ to and then fetching it. The most likely way for a server to perform it
+ on a client is to "merge" X into a public branch and hope that the user
+ does additional work on this branch and pushes it back to the server
+ without noticing the merge.)
+
+. As in #1, the attacker chooses an object ID X to steal. The victim sends
+ an object Y that the attacker already has, and the attacker falsely
+ claims to have X and not Y, so the victim sends Y as a delta against X.
+ The delta reveals regions of X that are similar to Y to the attacker.
diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 40700d5..706946c 100755
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -1,7 +1,7 @@
#!/bin/sh
GVF=GIT-VERSION-FILE
-DEF_VER=v2.10.3
+DEF_VER=v2.11.1
LF='
'
diff --git a/Makefile b/Makefile
index 46ad908..7626726 100644
--- a/Makefile
+++ b/Makefile
@@ -467,6 +467,7 @@ SPATCH = spatch
export TCL_PATH TCLTK_PATH
SPARSE_FLAGS =
+SPATCH_FLAGS = --all-includes
@@ -698,6 +699,7 @@ LIB_OBJS += abspath.o
LIB_OBJS += advice.o
LIB_OBJS += alias.o
LIB_OBJS += alloc.o
+LIB_OBJS += apply.o
LIB_OBJS += archive.o
LIB_OBJS += archive-tar.o
LIB_OBJS += archive-zip.o
@@ -830,6 +832,7 @@ LIB_OBJS += submodule-config.o
LIB_OBJS += symlinks.o
LIB_OBJS += tag.o
LIB_OBJS += tempfile.o
+LIB_OBJS += tmp-objdir.o
LIB_OBJS += trace.o
LIB_OBJS += trailer.o
LIB_OBJS += transport.o
@@ -2146,9 +2149,22 @@ endif
po/build/locale/%/LC_MESSAGES/git.mo: po/%.po
$(QUIET_MSGFMT)mkdir -p $(dir $@) && $(MSGFMT) -o $@ $<
-FIND_SOURCE_FILES = ( git ls-files '*.[hcS]' 2>/dev/null || \
- $(FIND) . \( -name .git -type d -prune \) \
- -o \( -name '*.[hcS]' -type f -print \) )
+FIND_SOURCE_FILES = ( \
+ git ls-files \
+ '*.[hcS]' \
+ '*.sh' \
+ ':!*[tp][0-9][0-9][0-9][0-9]*' \
+ ':!contrib' \
+ 2>/dev/null || \
+ $(FIND) . \
+ \( -name .git -type d -prune \) \
+ -o \( -name '[tp][0-9][0-9][0-9][0-9]*' -prune \) \
+ -o \( -name contrib -type d -prune \) \
+ -o \( -name build -type d -prune \) \
+ -o \( -name 'trash*' -type d -prune \) \
+ -o \( -name '*.[hcS]' -type f -print \) \
+ -o \( -name '*.sh' -type f -print \) \
+ )
$(ETAGS_TARGET): FORCE
$(RM) $(ETAGS_TARGET)
@@ -2314,7 +2330,7 @@ C_SOURCES = $(patsubst %.o,%.c,$(C_OBJ))
%.cocci.patch: %.cocci $(C_SOURCES)
@echo ' ' SPATCH $<; \
for f in $(C_SOURCES); do \
- $(SPATCH) --sp-file $< $$f; \
+ $(SPATCH) --sp-file $< $$f $(SPATCH_FLAGS); \
done >$@ 2>$@.log; \
if test -s $@; \
then \
diff --git a/README.md b/README.md
index bd8a918..c0cd558 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ requests, comments and patches to git@vger.kernel.org (read
[Documentation/SubmittingPatches][] for instructions on patch submission).
To subscribe to the list, send an email with just "subscribe git" in
the body to majordomo@vger.kernel.org. The mailing list archives are
-available at http://news.gmane.org/gmane.comp.version-control.git/,
+available at https://public-inbox.org/git,
http://marc.info/?l=git and other archival sites.
The maintainer frequently sends the "What's cooking" reports that
diff --git a/RelNotes b/RelNotes
index 75030cb..7f250dd 120000
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes/2.10.3.txt \ No newline at end of file
+Documentation/RelNotes/2.11.1.txt \ No newline at end of file
diff --git a/apply.c b/apply.c
new file mode 100644
index 0000000..705cf56
--- /dev/null
+++ b/apply.c
@@ -0,0 +1,4988 @@
+/*
+ * apply.c
+ *
+ * Copyright (C) Linus Torvalds, 2005
+ *
+ * This applies patches on top of some (arbitrary) version of the SCM.
+ *
+ */
+
+#include "cache.h"
+#include "blob.h"
+#include "delta.h"
+#include "diff.h"
+#include "dir.h"
+#include "xdiff-interface.h"
+#include "ll-merge.h"
+#include "lockfile.h"
+#include "parse-options.h"
+#include "quote.h"
+#include "rerere.h"
+#include "apply.h"
+
+static void git_apply_config(void)
+{
+ git_config_get_string_const("apply.whitespace", &apply_default_whitespace);
+ git_config_get_string_const("apply.ignorewhitespace", &apply_default_ignorewhitespace);
+ git_config(git_default_config, NULL);
+}
+
+static int parse_whitespace_option(struct apply_state *state, const char *option)
+{
+ if (!option) {
+ state->ws_error_action = warn_on_ws_error;
+ return 0;
+ }
+ if (!strcmp(option, "warn")) {
+ state->ws_error_action = warn_on_ws_error;
+ return 0;
+ }
+ if (!strcmp(option, "nowarn")) {
+ state->ws_error_action = nowarn_ws_error;
+ return 0;
+ }
+ if (!strcmp(option, "error")) {
+ state->ws_error_action = die_on_ws_error;
+ return 0;
+ }
+ if (!strcmp(option, "error-all")) {
+ state->ws_error_action = die_on_ws_error;
+ state->squelch_whitespace_errors = 0;
+ return 0;
+ }
+ if (!strcmp(option, "strip") || !strcmp(option, "fix")) {
+ state->ws_error_action = correct_ws_error;
+ return 0;
+ }
+ return error(_("unrecognized whitespace option '%s'"), option);
+}
+
+static int parse_ignorewhitespace_option(struct apply_state *state,
+ const char *option)
+{
+ if (!option || !strcmp(option, "no") ||
+ !strcmp(option, "false") || !strcmp(option, "never") ||
+ !strcmp(option, "none")) {
+ state->ws_ignore_action = ignore_ws_none;
+ return 0;
+ }
+ if (!strcmp(option, "change")) {
+ state->ws_ignore_action = ignore_ws_change;
+ return 0;
+ }
+ return error(_("unrecognized whitespace ignore option '%s'"), option);
+}
+
+int init_apply_state(struct apply_state *state,
+ const char *prefix,
+ struct lock_file *lock_file)
+{
+ memset(state, 0, sizeof(*state));
+ state->prefix = prefix;
+ state->prefix_length = state->prefix ? strlen(state->prefix) : 0;
+ state->lock_file = lock_file;
+ state->newfd = -1;
+ state->apply = 1;
+ state->line_termination = '\n';
+ state->p_value = 1;
+ state->p_context = UINT_MAX;
+ state->squelch_whitespace_errors = 5;
+ state->ws_error_action = warn_on_ws_error;
+ state->ws_ignore_action = ignore_ws_none;
+ state->linenr = 1;
+ string_list_init(&state->fn_table, 0);
+ string_list_init(&state->limit_by_name, 0);
+ string_list_init(&state->symlink_changes, 0);
+ strbuf_init(&state->root, 0);
+
+ git_apply_config();
+ if (apply_default_whitespace && parse_whitespace_option(state, apply_default_whitespace))
+ return -1;
+ if (apply_default_ignorewhitespace && parse_ignorewhitespace_option(state, apply_default_ignorewhitespace))
+ return -1;
+ return 0;
+}
+
+void clear_apply_state(struct apply_state *state)
+{
+ string_list_clear(&state->limit_by_name, 0);
+ string_list_clear(&state->symlink_changes, 0);
+ strbuf_release(&state->root);
+
+ /* &state->fn_table is cleared at the end of apply_patch() */
+}
+
+static void mute_routine(const char *msg, va_list params)
+{
+ /* do nothing */
+}
+
+int check_apply_state(struct apply_state *state, int force_apply)
+{
+ int is_not_gitdir = !startup_info->have_repository;
+
+ if (state->apply_with_reject && state->threeway)
+ return error(_("--reject and --3way cannot be used together."));
+ if (state->cached && state->threeway)
+ return error(_("--cached and --3way cannot be used together."));
+ if (state->threeway) {
+ if (is_not_gitdir)
+ return error(_("--3way outside a repository"));
+ state->check_index = 1;
+ }
+ if (state->apply_with_reject) {
+ state->apply = 1;
+ if (state->apply_verbosity == verbosity_normal)
+ state->apply_verbosity = verbosity_verbose;
+ }
+ if (!force_apply && (state->diffstat || state->numstat || state->summary || state->check || state->fake_ancestor))
+ state->apply = 0;
+ if (state->check_index && is_not_gitdir)
+ return error(_("--index outside a repository"));
+ if (state->cached) {
+ if (is_not_gitdir)
+ return error(_("--cached outside a repository"));
+ state->check_index = 1;
+ }
+ if (state->check_index)
+ state->unsafe_paths = 0;
+ if (!state->lock_file)
+ return error("BUG: state->lock_file should not be NULL");
+
+ if (state->apply_verbosity <= verbosity_silent) {
+ state->saved_error_routine = get_error_routine();
+ state->saved_warn_routine = get_warn_routine();
+ set_error_routine(mute_routine);
+ set_warn_routine(mute_routine);
+ }
+
+ return 0;
+}
+
+static void set_default_whitespace_mode(struct apply_state *state)
+{
+ if (!state->whitespace_option && !apply_default_whitespace)
+ state->ws_error_action = (state->apply ? warn_on_ws_error : nowarn_ws_error);
+}
+
+/*
+ * This represents one "hunk" from a patch, starting with
+ * "@@ -oldpos,oldlines +newpos,newlines @@" marker. The
+ * patch text is pointed at by patch, and its byte length
+ * is stored in size. leading and trailing are the number
+ * of context lines.
+ */
+struct fragment {
+ unsigned long leading, trailing;
+ unsigned long oldpos, oldlines;
+ unsigned long newpos, newlines;
+ /*
+ * 'patch' is usually borrowed from buf in apply_patch(),
+ * but some codepaths store an allocated buffer.
+ */
+ const char *patch;
+ unsigned free_patch:1,
+ rejected:1;
+ int size;
+ int linenr;
+ struct fragment *next;
+};
+
+/*
+ * When dealing with a binary patch, we reuse "leading" field
+ * to store the type of the binary hunk, either deflated "delta"
+ * or deflated "literal".
+ */
+#define binary_patch_method leading
+#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;
+ 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;
+ struct fragment *fragments;
+ char *result;
+ size_t resultsize;
+ char old_sha1_prefix[41];
+ char new_sha1_prefix[41];
+ struct patch *next;
+
+ /* three-way fallback result */
+ struct object_id threeway_stage[3];
+};
+
+static void free_fragment_list(struct fragment *list)
+{
+ while (list) {
+ struct fragment *next = list->next;
+ if (list->free_patch)
+ free((char *)list->patch);
+ free(list);
+ list = next;
+ }
+}
+
+static void free_patch(struct patch *patch)
+{
+ free_fragment_list(patch->fragments);
+ free(patch->def_name);
+ free(patch->old_name);
+ free(patch->new_name);
+ free(patch->result);
+ free(patch);
+}
+
+static void free_patch_list(struct patch *list)
+{
+ while (list) {
+ struct patch *next = list->next;
+ free_patch(list);
+ list = next;
+ }
+}
+
+/*
+ * A line in a file, len-bytes long (includes the terminating LF,
+ * except for an incomplete line at the end if the file ends with
+ * one), and its contents hashes to 'hash'.
+ */
+struct line {
+ size_t len;
+ unsigned hash : 24;
+ unsigned flag : 8;
+#define LINE_COMMON 1
+#define LINE_PATCHED 2
+};
+
+/*
+ * This represents a "file", which is an array of "lines".
+ */
+struct image {
+ char *buf;
+ size_t len;
+ size_t nr;
+ size_t alloc;
+ struct line *line_allocated;
+ struct line *line;
+};
+
+static uint32_t hash_line(const char *cp, size_t len)
+{
+ size_t i;
+ uint32_t h;
+ for (i = 0, h = 0; i < len; i++) {
+ if (!isspace(cp[i])) {
+ h = h * 3 + (cp[i] & 0xff);
+ }
+ }
+ return h;
+}
+
+/*
+ * Compare lines s1 of length n1 and s2 of length n2, ignoring
+ * whitespace difference. Returns 1 if they match, 0 otherwise
+ */
+static int fuzzy_matchlines(const char *s1, size_t n1,
+ const char *s2, size_t n2)
+{
+ const char *last1 = s1 + n1 - 1;
+ const char *last2 = s2 + n2 - 1;
+ int result = 0;
+
+ /* ignore line endings */
+ while ((*last1 == '\r') || (*last1 == '\n'))
+ last1--;
+ while ((*last2 == '\r') || (*last2 == '\n'))
+ last2--;
+
+ /* skip leading whitespaces, if both begin with whitespace */
+ if (s1 <= last1 && s2 <= last2 && isspace(*s1) && isspace(*s2)) {
+ while (isspace(*s1) && (s1 <= last1))
+ s1++;
+ while (isspace(*s2) && (s2 <= last2))
+ s2++;
+ }
+ /* early return if both lines are empty */
+ if ((s1 > last1) && (s2 > last2))
+ return 1;
+ while (!result) {
+ result = *s1++ - *s2++;
+ /*
+ * Skip whitespace inside. We check for whitespace on
+ * both buffers because we don't want "a b" to match
+ * "ab"
+ */
+ if (isspace(*s1) && isspace(*s2)) {
+ while (isspace(*s1) && s1 <= last1)
+ s1++;
+ while (isspace(*s2) && s2 <= last2)
+ s2++;
+ }
+ /*
+ * If we reached the end on one side only,
+ * lines don't match
+ */
+ if (
+ ((s2 > last2) && (s1 <= last1)) ||
+ ((s1 > last1) && (s2 <= last2)))
+ return 0;
+ if ((s1 > last1) && (s2 > last2))
+ break;
+ }
+
+ return !result;
+}
+
+static void add_line_info(struct image *img, const char *bol, size_t len, unsigned flag)
+{
+ ALLOC_GROW(img->line_allocated, img->nr + 1, img->alloc);
+ img->line_allocated[img->nr].len = len;
+ img->line_allocated[img->nr].hash = hash_line(bol, len);
+ img->line_allocated[img->nr].flag = flag;
+ img->nr++;
+}
+
+/*
+ * "buf" has the file contents to be patched (read from various sources).
+ * attach it to "image" and add line-based index to it.
+ * "image" now owns the "buf".
+ */
+static void prepare_image(struct image *image, char *buf, size_t len,
+ int prepare_linetable)
+{
+ const char *cp, *ep;
+
+ memset(image, 0, sizeof(*image));
+ image->buf = buf;
+ image->len = len;
+
+ if (!prepare_linetable)
+ return;
+
+ ep = image->buf + image->len;
+ cp = image->buf;
+ while (cp < ep) {
+ const char *next;
+ for (next = cp; next < ep && *next != '\n'; next++)
+ ;
+ if (next < ep)
+ next++;
+ add_line_info(image, cp, next - cp, 0);
+ cp = next;
+ }
+ image->line = image->line_allocated;
+}
+
+static void clear_image(struct image *image)
+{
+ free(image->buf);
+ free(image->line_allocated);
+ memset(image, 0, sizeof(*image));
+}
+
+/* fmt must contain _one_ %s and no other substitution */
+static void say_patch_name(FILE *output, const char *fmt, struct patch *patch)
+{
+ struct strbuf sb = STRBUF_INIT;
+
+ if (patch->old_name && patch->new_name &&
+ strcmp(patch->old_name, patch->new_name)) {
+ quote_c_style(patch->old_name, &sb, NULL, 0);
+ strbuf_addstr(&sb, " => ");
+ quote_c_style(patch->new_name, &sb, NULL, 0);
+ } else {
+ const char *n = patch->new_name;
+ if (!n)
+ n = patch->old_name;
+ quote_c_style(n, &sb, NULL, 0);
+ }
+ fprintf(output, fmt, sb.buf);
+ fputc('\n', output);
+ strbuf_release(&sb);
+}
+
+#define SLOP (16)
+
+static int read_patch_file(struct strbuf *sb, int fd)
+{
+ if (strbuf_read(sb, fd, 0) < 0)
+ return error_errno("git apply: failed to read");
+
+ /*
+ * Make sure that we have some slop in the buffer
+ * so that we can do speculative "memcmp" etc, and
+ * see to it that it is NUL-filled.
+ */
+ strbuf_grow(sb, SLOP);
+ memset(sb->buf + sb->len, 0, SLOP);
+ return 0;
+}
+
+static unsigned long linelen(const char *buffer, unsigned long size)
+{
+ unsigned long len = 0;
+ while (size--) {
+ len++;
+ if (*buffer++ == '\n')
+ break;
+ }
+ return len;
+}
+
+static int is_dev_null(const char *str)
+{
+ return skip_prefix(str, "/dev/null", &str) && isspace(*str);
+}
+
+#define TERM_SPACE 1
+#define TERM_TAB 2
+
+static int name_terminate(int c, int terminate)
+{
+ if (c == ' ' && !(terminate & TERM_SPACE))
+ return 0;
+ if (c == '\t' && !(terminate & TERM_TAB))
+ return 0;
+
+ return 1;
+}
+
+/* remove double slashes to make --index work with such filenames */
+static char *squash_slash(char *name)
+{
+ int i = 0, j = 0;
+
+ if (!name)
+ return NULL;
+
+ while (name[i]) {
+ if ((name[j++] = name[i++]) == '/')
+ while (name[i] == '/')
+ i++;
+ }
+ name[j] = '\0';
+ return name;
+}
+
+static char *find_name_gnu(struct apply_state *state,
+ const char *line,
+ const char *def,
+ int p_value)
+{
+ struct strbuf name = STRBUF_INIT;
+ char *cp;
+
+ /*
+ * Proposed "new-style" GNU patch/diff format; see
+ * http://marc.info/?l=git&m=112927316408690&w=2
+ */
+ if (unquote_c_style(&name, line, NULL)) {
+ strbuf_release(&name);
+ return NULL;
+ }
+
+ for (cp = name.buf; p_value; p_value--) {
+ cp = strchr(cp, '/');
+ if (!cp) {
+ strbuf_release(&name);
+ return NULL;
+ }
+ cp++;
+ }
+
+ strbuf_remove(&name, 0, cp - name.buf);
+ if (state->root.len)
+ strbuf_insert(&name, 0, state->root.buf, state->root.len);
+ return squash_slash(strbuf_detach(&name, NULL));
+}
+
+static size_t sane_tz_len(const char *line, size_t len)
+{
+ const char *tz, *p;
+
+ if (len < strlen(" +0500") || line[len-strlen(" +0500")] != ' ')
+ return 0;
+ tz = line + len - strlen(" +0500");
+
+ if (tz[1] != '+' && tz[1] != '-')
+ return 0;
+
+ for (p = tz + 2; p != line + len; p++)
+ if (!isdigit(*p))
+ return 0;
+
+ return line + len - tz;
+}
+
+static size_t tz_with_colon_len(const char *line, size_t len)
+{
+ const char *tz, *p;
+
+ if (len < strlen(" +08:00") || line[len - strlen(":00")] != ':')
+ return 0;
+ tz = line + len - strlen(" +08:00");
+
+ if (tz[0] != ' ' || (tz[1] != '+' && tz[1] != '-'))
+ return 0;
+ p = tz + 2;
+ if (!isdigit(*p++) || !isdigit(*p++) || *p++ != ':' ||
+ !isdigit(*p++) || !isdigit(*p++))
+ return 0;
+
+ return line + len - tz;
+}
+
+static size_t date_len(const char *line, size_t len)
+{
+ const char *date, *p;
+
+ if (len < strlen("72-02-05") || line[len-strlen("-05")] != '-')
+ return 0;
+ p = date = line + len - strlen("72-02-05");
+
+ if (!isdigit(*p++) || !isdigit(*p++) || *p++ != '-' ||
+ !isdigit(*p++) || !isdigit(*p++) || *p++ != '-' ||
+ !isdigit(*p++) || !isdigit(*p++)) /* Not a date. */
+ return 0;
+
+ if (date - line >= strlen("19") &&
+ isdigit(date[-1]) && isdigit(date[-2])) /* 4-digit year */
+ date -= strlen("19");
+
+ return line + len - date;
+}
+
+static size_t short_time_len(const char *line, size_t len)
+{
+ const char *time, *p;
+
+ if (len < strlen(" 07:01:32") || line[len-strlen(":32")] != ':')
+ return 0;
+ p = time = line + len - strlen(" 07:01:32");
+
+ /* Permit 1-digit hours? */
+ if (*p++ != ' ' ||
+ !isdigit(*p++) || !isdigit(*p++) || *p++ != ':' ||
+ !isdigit(*p++) || !isdigit(*p++) || *p++ != ':' ||
+ !isdigit(*p++) || !isdigit(*p++)) /* Not a time. */
+ return 0;
+
+ return line + len - time;
+}
+
+static size_t fractional_time_len(const char *line, size_t len)
+{
+ const char *p;
+ size_t n;
+
+ /* Expected format: 19:41:17.620000023 */
+ if (!len || !isdigit(line[len - 1]))
+ return 0;
+ p = line + len - 1;
+
+ /* Fractional seconds. */
+ while (p > line && isdigit(*p))
+ p--;
+ if (*p != '.')
+ return 0;
+
+ /* Hours, minutes, and whole seconds. */
+ n = short_time_len(line, p - line);
+ if (!n)
+ return 0;
+
+ return line + len - p + n;
+}
+
+static size_t trailing_spaces_len(const char *line, size_t len)
+{
+ const char *p;
+
+ /* Expected format: ' ' x (1 or more) */
+ if (!len || line[len - 1] != ' ')
+ return 0;
+
+ p = line + len;
+ while (p != line) {
+ p--;
+ if (*p != ' ')
+ return line + len - (p + 1);
+ }
+
+ /* All spaces! */
+ return len;
+}
+
+static size_t diff_timestamp_len(const char *line, size_t len)
+{
+ const char *end = line + len;
+ size_t n;
+
+ /*
+ * Posix: 2010-07-05 19:41:17
+ * GNU: 2010-07-05 19:41:17.620000023 -0500
+ */
+
+ if (!isdigit(end[-1]))
+ return 0;
+
+ n = sane_tz_len(line, end - line);
+ if (!n)
+ n = tz_with_colon_len(line, end - line);
+ end -= n;
+
+ n = short_time_len(line, end - line);
+ if (!n)
+ n = fractional_time_len(line, end - line);
+ end -= n;
+
+ n = date_len(line, end - line);
+ if (!n) /* No date. Too bad. */
+ return 0;
+ end -= n;
+
+ if (end == line) /* No space before date. */
+ return 0;
+ if (end[-1] == '\t') { /* Success! */
+ end--;
+ return line + len - end;
+ }
+ if (end[-1] != ' ') /* No space before date. */
+ return 0;
+
+ /* Whitespace damage. */
+ end -= trailing_spaces_len(line, end - line);
+ return line + len - end;
+}
+
+static char *find_name_common(struct apply_state *state,
+ const char *line,
+ const char *def,
+ int p_value,
+ const char *end,
+ int terminate)
+{
+ int len;
+ const char *start = NULL;
+
+ if (p_value == 0)
+ start = line;
+ while (line != end) {
+ char c = *line;
+
+ if (!end && isspace(c)) {
+ if (c == '\n')
+ break;
+ if (name_terminate(c, terminate))
+ break;
+ }
+ line++;
+ if (c == '/' && !--p_value)
+ start = line;
+ }
+ if (!start)
+ return squash_slash(xstrdup_or_null(def));
+ len = line - start;
+ if (!len)
+ return squash_slash(xstrdup_or_null(def));
+
+ /*
+ * Generally we prefer the shorter name, especially
+ * if the other one is just a variation of that with
+ * something else tacked on to the end (ie "file.orig"
+ * or "file~").
+ */
+ if (def) {
+ int deflen = strlen(def);
+ if (deflen < len && !strncmp(start, def, deflen))
+ return squash_slash(xstrdup(def));
+ }
+
+ if (state->root.len) {
+ char *ret = xstrfmt("%s%.*s", state->root.buf, len, start);
+ return squash_slash(ret);
+ }
+
+ return squash_slash(xmemdupz(start, len));
+}
+
+static char *find_name(struct apply_state *state,
+ const char *line,
+ char *def,
+ int p_value,
+ int terminate)
+{
+ if (*line == '"') {
+ char *name = find_name_gnu(state, line, def, p_value);
+ if (name)
+ return name;
+ }
+
+ return find_name_common(state, line, def, p_value, NULL, terminate);
+}
+
+static char *find_name_traditional(struct apply_state *state,
+ const char *line,
+ char *def,
+ int p_value)
+{
+ size_t len;
+ size_t date_len;
+
+ if (*line == '"') {
+ char *name = find_name_gnu(state, line, def, p_value);
+ if (name)
+ return name;
+ }
+
+ 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);
+ len -= date_len;
+
+ return find_name_common(state, line, def, p_value, line + len, 0);
+}
+
+static int count_slashes(const char *cp)
+{
+ int cnt = 0;
+ char ch;
+
+ while ((ch = *cp++))
+ if (ch == '/')
+ cnt++;
+ return cnt;
+}
+
+/*
+ * Given the string after "--- " or "+++ ", guess the appropriate
+ * p_value for the given patch.
+ */
+static int guess_p_value(struct apply_state *state, const char *nameline)
+{
+ char *name, *cp;
+ int val = -1;
+
+ if (is_dev_null(nameline))
+ return -1;
+ name = find_name_traditional(state, nameline, NULL, 0);
+ if (!name)
+ return -1;
+ cp = strchr(name, '/');
+ if (!cp)
+ val = 0;
+ else if (state->prefix) {
+ /*
+ * Does it begin with "a/$our-prefix" and such? Then this is
+ * very likely to apply to our directory.
+ */
+ if (!strncmp(name, state->prefix, state->prefix_length))
+ val = count_slashes(state->prefix);
+ else {
+ cp++;
+ if (!strncmp(cp, state->prefix, state->prefix_length))
+ val = count_slashes(state->prefix) + 1;
+ }
+ }
+ free(name);
+ return val;
+}
+
+/*
+ * Does the ---/+++ line have the POSIX timestamp after the last HT?
+ * GNU diff puts epoch there to signal a creation/deletion event. Is
+ * this such a timestamp?
+ */
+static int has_epoch_timestamp(const char *nameline)
+{
+ /*
+ * We are only interested in epoch timestamp; any non-zero
+ * fraction cannot be one, hence "(\.0+)?" in the regexp below.
+ * For the same reason, the date must be either 1969-12-31 or
+ * 1970-01-01, and the seconds part must be "00".
+ */
+ const char stamp_regexp[] =
+ "^(1969-12-31|1970-01-01)"
+ " "
+ "[0-2][0-9]:[0-5][0-9]:00(\\.0+)?"
+ " "
+ "([-+][0-2][0-9]:?[0-5][0-9])\n";
+ const char *timestamp = NULL, *cp, *colon;
+ static regex_t *stamp;
+ regmatch_t m[10];
+ int zoneoffset;
+ int hourminute;
+ int status;
+
+ for (cp = nameline; *cp != '\n'; cp++) {
+ if (*cp == '\t')
+ timestamp = cp + 1;
+ }
+ if (!timestamp)
+ return 0;
+ if (!stamp) {
+ stamp = xmalloc(sizeof(*stamp));
+ if (regcomp(stamp, stamp_regexp, REG_EXTENDED)) {
+ warning(_("Cannot prepare timestamp regexp %s"),
+ stamp_regexp);
+ return 0;
+ }
+ }
+
+ status = regexec(stamp, timestamp, ARRAY_SIZE(m), m, 0);
+ if (status) {
+ if (status != REG_NOMATCH)
+ warning(_("regexec returned %d for input: %s"),
+ status, timestamp);
+ return 0;
+ }
+
+ zoneoffset = strtol(timestamp + m[3].rm_so + 1, (char **) &colon, 10);
+ if (*colon == ':')
+ zoneoffset = zoneoffset * 60 + strtol(colon + 1, NULL, 10);
+ else
+ zoneoffset = (zoneoffset / 100) * 60 + (zoneoffset % 100);
+ if (timestamp[m[3].rm_so] == '-')
+ zoneoffset = -zoneoffset;
+
+ /*
+ * YYYY-MM-DD hh:mm:ss must be from either 1969-12-31
+ * (west of GMT) or 1970-01-01 (east of GMT)
+ */
+ if ((zoneoffset < 0 && memcmp(timestamp, "1969-12-31", 10)) ||
+ (0 <= zoneoffset && memcmp(timestamp, "1970-01-01", 10)))
+ return 0;
+
+ hourminute = (strtol(timestamp + 11, NULL, 10) * 60 +
+ strtol(timestamp + 14, NULL, 10) -
+ zoneoffset);
+
+ return ((zoneoffset < 0 && hourminute == 1440) ||
+ (0 <= zoneoffset && !hourminute));
+}
+
+/*
+ * Get the name etc info from the ---/+++ lines of a traditional patch header
+ *
+ * FIXME! The end-of-filename heuristics are kind of screwy. For existing
+ * files, we can happily check the index for a match, but for creating a
+ * new file we should try to match whatever "patch" does. I have no idea.
+ */
+static int parse_traditional_patch(struct apply_state *state,
+ const char *first,
+ const char *second,
+ struct patch *patch)
+{
+ char *name;
+
+ first += 4; /* skip "--- " */
+ second += 4; /* skip "+++ " */
+ if (!state->p_value_known) {
+ int p, q;
+ p = guess_p_value(state, first);
+ q = guess_p_value(state, second);
+ if (p < 0) p = q;
+ if (0 <= p && p == q) {
+ state->p_value = p;
+ state->p_value_known = 1;
+ }
+ }
+ if (is_dev_null(first)) {
+ patch->is_new = 1;
+ patch->is_delete = 0;
+ name = find_name_traditional(state, 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);
+ 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);
+ free(first_name);
+ if (has_epoch_timestamp(first)) {
+ patch->is_new = 1;
+ patch->is_delete = 0;
+ patch->new_name = name;
+ } else if (has_epoch_timestamp(second)) {
+ patch->is_new = 0;
+ patch->is_delete = 1;
+ patch->old_name = name;
+ } else {
+ patch->old_name = name;
+ patch->new_name = xstrdup_or_null(name);
+ }
+ }
+ if (!name)
+ return error(_("unable to find filename in patch at line %d"), state->linenr);
+
+ return 0;
+}
+
+static int gitdiff_hdrend(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ return 1;
+}
+
+/*
+ * We're anal about diff header consistency, to make
+ * sure that we don't end up having strange ambiguous
+ * patches floating around.
+ *
+ * As a result, gitdiff_{old|new}name() will check
+ * their names against any previous information, just
+ * to make sure..
+ */
+#define DIFF_OLD_NAME 0
+#define DIFF_NEW_NAME 1
+
+static int gitdiff_verify_name(struct apply_state *state,
+ const char *line,
+ int isnull,
+ char **name,
+ int side)
+{
+ if (!*name && !isnull) {
+ *name = find_name(state, line, NULL, state->p_value, TERM_TAB);
+ return 0;
+ }
+
+ if (*name) {
+ int len = strlen(*name);
+ char *another;
+ 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);
+ if (!another || memcmp(another, *name, len + 1)) {
+ free(another);
+ return error((side == DIFF_NEW_NAME) ?
+ _("git apply: bad git-diff - inconsistent new filename on line %d") :
+ _("git apply: bad git-diff - inconsistent old filename on line %d"), state->linenr);
+ }
+ free(another);
+ } else {
+ /* expect "/dev/null" */
+ if (memcmp("/dev/null", line, 9) || line[9] != '\n')
+ return error(_("git apply: bad git-diff - expected /dev/null on line %d"), state->linenr);
+ }
+
+ return 0;
+}
+
+static int gitdiff_oldname(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ return gitdiff_verify_name(state, line,
+ patch->is_new, &patch->old_name,
+ DIFF_OLD_NAME);
+}
+
+static int gitdiff_newname(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ return gitdiff_verify_name(state, line,
+ patch->is_delete, &patch->new_name,
+ DIFF_NEW_NAME);
+}
+
+static int gitdiff_oldmode(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ patch->old_mode = strtoul(line, NULL, 8);
+ return 0;
+}
+
+static int gitdiff_newmode(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ patch->new_mode = strtoul(line, NULL, 8);
+ return 0;
+}
+
+static int gitdiff_delete(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ patch->is_delete = 1;
+ free(patch->old_name);
+ patch->old_name = xstrdup_or_null(patch->def_name);
+ return gitdiff_oldmode(state, line, patch);
+}
+
+static int gitdiff_newfile(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ patch->is_new = 1;
+ free(patch->new_name);
+ patch->new_name = xstrdup_or_null(patch->def_name);
+ return gitdiff_newmode(state, line, patch);
+}
+
+static int gitdiff_copysrc(struct apply_state *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);
+ return 0;
+}
+
+static int gitdiff_copydst(struct apply_state *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);
+ return 0;
+}
+
+static int gitdiff_renamesrc(struct apply_state *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);
+ return 0;
+}
+
+static int gitdiff_renamedst(struct apply_state *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);
+ return 0;
+}
+
+static int gitdiff_similarity(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ unsigned long val = strtoul(line, NULL, 10);
+ if (val <= 100)
+ patch->score = val;
+ return 0;
+}
+
+static int gitdiff_dissimilarity(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ unsigned long val = strtoul(line, NULL, 10);
+ if (val <= 100)
+ patch->score = val;
+ return 0;
+}
+
+static int gitdiff_index(struct apply_state *state,
+ const char *line,
+ struct patch *patch)
+{
+ /*
+ * index line is N hexadecimal, "..", N hexadecimal,
+ * and optional space with octal mode.
+ */
+ const char *ptr, *eol;
+ int len;
+
+ ptr = strchr(line, '.');
+ if (!ptr || ptr[1] != '.' || 40 < ptr - line)
+ return 0;
+ len = ptr - line;
+ memcpy(patch->old_sha1_prefix, line, len);
+ patch->old_sha1_prefix[len] = 0;
+
+ line = ptr + 2;
+ ptr = strchr(line, ' ');
+ eol = strchrnul(line, '\n');
+
+ if (!ptr || eol < ptr)
+ ptr = eol;
+ len = ptr - line;
+
+ if (40 < len)
+ return 0;
+ memcpy(patch->new_sha1_prefix, line, len);
+ patch->new_sha1_prefix[len] = 0;
+ if (*ptr == ' ')
+ patch->old_mode = strtoul(ptr+1, NULL, 8);
+ return 0;
+}
+
+/*
+ * 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,
+ const char *line,
+ struct patch *patch)
+{
+ return 1;
+}
+
+/*
+ * 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,
+ const char *line,
+ int llen)
+{
+ int nslash;
+ int i;
+
+ if (!state->p_value)
+ return (llen && line[0] == '/') ? NULL : line;
+
+ nslash = state->p_value;
+ for (i = 0; i < llen; i++) {
+ int ch = line[i];
+ if (ch == '/' && --nslash <= 0)
+ return (i == 0) ? NULL : &line[i + 1];
+ }
+ return NULL;
+}
+
+/*
+ * This is to extract the same name that appears on "diff --git"
+ * line. We do not find and return anything if it is a rename
+ * patch, and it is OK because we will find the name elsewhere.
+ * We need to reliably find name only when it is mode-change only,
+ * 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,
+ const char *line,
+ int llen)
+{
+ const char *name;
+ const char *second = NULL;
+ size_t len, line_len;
+
+ line += strlen("diff --git ");
+ llen -= strlen("diff --git ");
+
+ if (*line == '"') {
+ const char *cp;
+ struct strbuf first = STRBUF_INIT;
+ struct strbuf sp = STRBUF_INIT;
+
+ if (unquote_c_style(&first, line, &second))
+ goto free_and_fail1;
+
+ /* strip the a/b prefix including trailing slash */
+ cp = skip_tree_prefix(state, first.buf, first.len);
+ if (!cp)
+ goto free_and_fail1;
+ strbuf_remove(&first, 0, cp - first.buf);
+
+ /*
+ * second points at one past closing dq of name.
+ * find the second name.
+ */
+ while ((second < line + llen) && isspace(*second))
+ second++;
+
+ if (line + llen <= second)
+ goto free_and_fail1;
+ if (*second == '"') {
+ if (unquote_c_style(&sp, second, NULL))
+ goto free_and_fail1;
+ cp = skip_tree_prefix(state, sp.buf, sp.len);
+ if (!cp)
+ goto free_and_fail1;
+ /* They must match, otherwise ignore */
+ if (strcmp(cp, first.buf))
+ goto free_and_fail1;
+ strbuf_release(&sp);
+ return strbuf_detach(&first, NULL);
+ }
+
+ /* unquoted second */
+ cp = skip_tree_prefix(state, second, line + llen - second);
+ if (!cp)
+ goto free_and_fail1;
+ if (line + llen - cp != first.len ||
+ memcmp(first.buf, cp, first.len))
+ goto free_and_fail1;
+ return strbuf_detach(&first, NULL);
+
+ free_and_fail1:
+ strbuf_release(&first);
+ strbuf_release(&sp);
+ return NULL;
+ }
+
+ /* unquoted first name */
+ name = skip_tree_prefix(state, line, llen);
+ if (!name)
+ return NULL;
+
+ /*
+ * since the first name is unquoted, a dq if exists must be
+ * the beginning of the second name.
+ */
+ for (second = name; second < line + llen; second++) {
+ if (*second == '"') {
+ struct strbuf sp = STRBUF_INIT;
+ const char *np;
+
+ if (unquote_c_style(&sp, second, NULL))
+ goto free_and_fail2;
+
+ np = skip_tree_prefix(state, sp.buf, sp.len);
+ if (!np)
+ goto free_and_fail2;
+
+ len = sp.buf + sp.len - np;
+ if (len < second - name &&
+ !strncmp(np, name, len) &&
+ isspace(name[len])) {
+ /* Good */
+ strbuf_remove(&sp, 0, np - sp.buf);
+ return strbuf_detach(&sp, NULL);
+ }
+
+ free_and_fail2:
+ strbuf_release(&sp);
+ return NULL;
+ }
+ }
+
+ /*
+ * Accept a name only if it shows up twice, exactly the same
+ * form.
+ */
+ second = strchr(name, '\n');
+ if (!second)
+ return NULL;
+ line_len = second - name;
+ for (len = 0 ; ; len++) {
+ switch (name[len]) {
+ default:
+ continue;
+ case '\n':
+ return NULL;
+ case '\t': case ' ':
+ /*
+ * Is this the separator between the preimage
+ * and the postimage pathname? Again, we are
+ * only interested in the case where there is
+ * no rename, as this is only to set def_name
+ * and a rename patch has the names elsewhere
+ * in an unambiguous form.
+ */
+ if (!name[len + 1])
+ return NULL; /* no postimage name */
+ second = skip_tree_prefix(state, name + len + 1,
+ line_len - (len + 1));
+ if (!second)
+ return NULL;
+ /*
+ * Does len bytes starting at "name" and "second"
+ * (that are separated by one HT or SP we just
+ * found) exactly match?
+ */
+ if (second[len] == '\n' && !strncmp(name, second, len))
+ return xmemdupz(name, len);
+ }
+ }
+}
+
+/* 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)
+{
+ unsigned long offset;
+
+ /* A git diff has explicit new/delete information, so we don't guess */
+ patch->is_new = 0;
+ patch->is_delete = 0;
+
+ /*
+ * Some things may not have the old name in the
+ * rest of the headers anywhere (pure mode changes,
+ * 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);
+ 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++) {
+ static const struct opentry {
+ const char *str;
+ int (*fn)(struct apply_state *, const char *, struct patch *);
+ } optable[] = {
+ { "@@ -", gitdiff_hdrend },
+ { "--- ", gitdiff_oldname },
+ { "+++ ", gitdiff_newname },
+ { "old mode ", gitdiff_oldmode },
+ { "new mode ", gitdiff_newmode },
+ { "deleted file mode ", gitdiff_delete },
+ { "new file mode ", gitdiff_newfile },
+ { "copy from ", gitdiff_copysrc },
+ { "copy to ", gitdiff_copydst },
+ { "rename old ", gitdiff_renamesrc },
+ { "rename new ", gitdiff_renamedst },
+ { "rename from ", gitdiff_renamesrc },
+ { "rename to ", gitdiff_renamedst },
+ { "similarity index ", gitdiff_similarity },
+ { "dissimilarity index ", gitdiff_dissimilarity },
+ { "index ", gitdiff_index },
+ { "", gitdiff_unrecognized },
+ };
+ int i;
+
+ len = linelen(line, size);
+ if (!len || line[len-1] != '\n')
+ break;
+ for (i = 0; i < ARRAY_SIZE(optable); i++) {
+ const struct opentry *p = optable + i;
+ int oplen = strlen(p->str);
+ int res;
+ if (len < oplen || memcmp(p->str, line, oplen))
+ continue;
+ res = p->fn(state, line + oplen, patch);
+ if (res < 0)
+ return -1;
+ if (res > 0)
+ return offset;
+ break;
+ }
+ }
+
+ return offset;
+}
+
+static int parse_num(const char *line, unsigned long *p)
+{
+ char *ptr;
+
+ if (!isdigit(*line))
+ return 0;
+ *p = strtoul(line, &ptr, 10);
+ return ptr - line;
+}
+
+static int parse_range(const char *line, int len, int offset, const char *expect,
+ unsigned long *p1, unsigned long *p2)
+{
+ int digits, ex;
+
+ if (offset < 0 || offset >= len)
+ return -1;
+ line += offset;
+ len -= offset;
+
+ digits = parse_num(line, p1);
+ if (!digits)
+ return -1;
+
+ offset += digits;
+ line += digits;
+ len -= digits;
+
+ *p2 = 1;
+ if (*line == ',') {
+ digits = parse_num(line+1, p2);
+ if (!digits)
+ return -1;
+
+ offset += digits+1;
+ line += digits+1;
+ len -= digits+1;
+ }
+
+ ex = strlen(expect);
+ if (ex > len)
+ return -1;
+ if (memcmp(line, expect, ex))
+ return -1;
+
+ return offset + ex;
+}
+
+static void recount_diff(const char *line, int size, struct fragment *fragment)
+{
+ int oldlines = 0, newlines = 0, ret = 0;
+
+ if (size < 1) {
+ warning("recount: ignore empty hunk");
+ return;
+ }
+
+ for (;;) {
+ int len = linelen(line, size);
+ size -= len;
+ line += len;
+
+ if (size < 1)
+ break;
+
+ switch (*line) {
+ case ' ': case '\n':
+ newlines++;
+ /* fall through */
+ case '-':
+ oldlines++;
+ continue;
+ case '+':
+ newlines++;
+ continue;
+ case '\\':
+ continue;
+ case '@':
+ ret = size < 3 || !starts_with(line, "@@ ");
+ break;
+ case 'd':
+ ret = size < 5 || !starts_with(line, "diff ");
+ break;
+ default:
+ ret = -1;
+ break;
+ }
+ if (ret) {
+ warning(_("recount: unexpected line: %.*s"),
+ (int)linelen(line, size), line);
+ return;
+ }
+ break;
+ }
+ fragment->oldlines = oldlines;
+ fragment->newlines = newlines;
+}
+
+/*
+ * Parse a unified diff fragment header of the
+ * form "@@ -a,b +c,d @@"
+ */
+static int parse_fragment_header(const char *line, int len, struct fragment *fragment)
+{
+ int offset;
+
+ if (!len || line[len-1] != '\n')
+ return -1;
+
+ /* Figure out the number of lines in a fragment */
+ offset = parse_range(line, len, 4, " +", &fragment->oldpos, &fragment->oldlines);
+ offset = parse_range(line, len, offset, " @@", &fragment->newpos, &fragment->newlines);
+
+ return offset;
+}
+
+/*
+ * Find file diff header
+ *
+ * Returns:
+ * -1 if no header was found
+ * -128 in case of error
+ * the size of the header in bytes (called "offset") otherwise
+ */
+static int find_header(struct apply_state *state,
+ const char *line,
+ unsigned long size,
+ int *hdrsize,
+ struct patch *patch)
+{
+ unsigned long offset, len;
+
+ patch->is_toplevel_relative = 0;
+ patch->is_rename = patch->is_copy = 0;
+ patch->is_new = patch->is_delete = -1;
+ patch->old_mode = patch->new_mode = 0;
+ patch->old_name = patch->new_name = NULL;
+ for (offset = 0; size > 0; offset += len, size -= len, line += len, state->linenr++) {
+ unsigned long nextlen;
+
+ len = linelen(line, size);
+ if (!len)
+ break;
+
+ /* Testing this early allows us to take a few shortcuts.. */
+ if (len < 6)
+ continue;
+
+ /*
+ * Make sure we don't find any unconnected patch fragments.
+ * That's a sign that we didn't find a header, and that a
+ * patch has become corrupted/broken up.
+ */
+ if (!memcmp("@@ -", line, 4)) {
+ struct fragment dummy;
+ if (parse_fragment_header(line, len, &dummy) < 0)
+ continue;
+ error(_("patch fragment without header at line %d: %.*s"),
+ state->linenr, (int)len-1, line);
+ return -128;
+ }
+
+ if (size < len + 6)
+ break;
+
+ /*
+ * Git patch? It might not have a real patch, just a rename
+ * 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);
+ if (git_hdr_len < 0)
+ return -128;
+ if (git_hdr_len <= len)
+ continue;
+ if (!patch->old_name && !patch->new_name) {
+ if (!patch->def_name) {
+ error(Q_("git diff header lacks filename information when removing "
+ "%d leading pathname component (line %d)",
+ "git diff header lacks filename information when removing "
+ "%d leading pathname components (line %d)",
+ state->p_value),
+ state->p_value, state->linenr);
+ return -128;
+ }
+ patch->old_name = xstrdup(patch->def_name);
+ patch->new_name = xstrdup(patch->def_name);
+ }
+ if (!patch->is_delete && !patch->new_name) {
+ error(_("git diff header lacks filename information "
+ "(line %d)"), state->linenr);
+ return -128;
+ }
+ patch->is_toplevel_relative = 1;
+ *hdrsize = git_hdr_len;
+ return offset;
+ }
+
+ /* --- followed by +++ ? */
+ if (memcmp("--- ", line, 4) || memcmp("+++ ", line + len, 4))
+ continue;
+
+ /*
+ * We only accept unified patches, so we want it to
+ * at least have "@@ -a,b +c,d @@\n", which is 14 chars
+ * minimum ("@@ -0,0 +1 @@\n" is the shortest).
+ */
+ nextlen = linelen(line + len, size - len);
+ if (size < nextlen + 14 || memcmp("@@ -", line + len + nextlen, 4))
+ continue;
+
+ /* Ok, we'll consider it a patch */
+ if (parse_traditional_patch(state, line, line+len, patch))
+ return -128;
+ *hdrsize = len + nextlen;
+ state->linenr += 2;
+ return offset;
+ }
+ return -1;
+}
+
+static void record_ws_error(struct apply_state *state,
+ unsigned result,
+ const char *line,
+ int len,
+ int linenr)
+{
+ char *err;
+
+ if (!result)
+ return;
+
+ state->whitespace_error++;
+ if (state->squelch_whitespace_errors &&
+ state->squelch_whitespace_errors < state->whitespace_error)
+ return;
+
+ err = whitespace_error_string(result);
+ if (state->apply_verbosity > verbosity_silent)
+ fprintf(stderr, "%s:%d: %s.\n%.*s\n",
+ state->patch_input_file, linenr, err, len, line);
+ free(err);
+}
+
+static void check_whitespace(struct apply_state *state,
+ const char *line,
+ int len,
+ unsigned ws_rule)
+{
+ unsigned result = ws_check(line + 1, len - 1, ws_rule);
+
+ record_ws_error(state, result, line + 1, len - 2, state->linenr);
+}
+
+/*
+ * Parse a unified diff. Note that this really needs to parse each
+ * fragment separately, since the only way to know the difference
+ * between a "---" that is part of a patch, and a "---" that starts
+ * the next patch is to look at the line counts..
+ */
+static int parse_fragment(struct apply_state *state,
+ const char *line,
+ unsigned long size,
+ struct patch *patch,
+ struct fragment *fragment)
+{
+ int added, deleted;
+ int len = linelen(line, size), offset;
+ unsigned long oldlines, newlines;
+ unsigned long leading, trailing;
+
+ offset = parse_fragment_header(line, len, fragment);
+ if (offset < 0)
+ return -1;
+ if (offset > 0 && patch->recount)
+ recount_diff(line + offset, size - offset, fragment);
+ oldlines = fragment->oldlines;
+ newlines = fragment->newlines;
+ leading = 0;
+ trailing = 0;
+
+ /* Parse the thing.. */
+ line += len;
+ size -= len;
+ state->linenr++;
+ added = deleted = 0;
+ for (offset = len;
+ 0 < size;
+ offset += len, size -= len, line += len, state->linenr++) {
+ if (!oldlines && !newlines)
+ break;
+ len = linelen(line, size);
+ if (!len || line[len-1] != '\n')
+ return -1;
+ switch (*line) {
+ default:
+ return -1;
+ case '\n': /* newer GNU diff, an empty context line */
+ case ' ':
+ oldlines--;
+ newlines--;
+ if (!deleted && !added)
+ leading++;
+ trailing++;
+ if (!state->apply_in_reverse &&
+ state->ws_error_action == correct_ws_error)
+ check_whitespace(state, line, len, patch->ws_rule);
+ break;
+ case '-':
+ if (state->apply_in_reverse &&
+ state->ws_error_action != nowarn_ws_error)
+ check_whitespace(state, line, len, patch->ws_rule);
+ deleted++;
+ oldlines--;
+ trailing = 0;
+ break;
+ case '+':
+ if (!state->apply_in_reverse &&
+ state->ws_error_action != nowarn_ws_error)
+ check_whitespace(state, line, len, patch->ws_rule);
+ added++;
+ newlines--;
+ trailing = 0;
+ break;
+
+ /*
+ * We allow "\ No newline at end of file". Depending
+ * on locale settings when the patch was produced we
+ * don't know what this line looks like. The only
+ * thing we do know is that it begins with "\ ".
+ * Checking for 12 is just for sanity check -- any
+ * l10n of "\ No newline..." is at least that long.
+ */
+ case '\\':
+ if (len < 12 || memcmp(line, "\\ ", 2))
+ return -1;
+ break;
+ }
+ }
+ if (oldlines || newlines)
+ return -1;
+ if (!deleted && !added)
+ return -1;
+
+ fragment->leading = leading;
+ fragment->trailing = trailing;
+
+ /*
+ * If a fragment ends with an incomplete line, we failed to include
+ * it in the above loop because we hit oldlines == newlines == 0
+ * before seeing it.
+ */
+ if (12 < size && !memcmp(line, "\\ ", 2))
+ offset += linelen(line, size);
+
+ patch->lines_added += added;
+ patch->lines_deleted += deleted;
+
+ if (0 < patch->is_new && oldlines)
+ return error(_("new file depends on old contents"));
+ if (0 < patch->is_delete && newlines)
+ return error(_("deleted file still has contents"));
+ return offset;
+}
+
+/*
+ * We have seen "diff --git a/... b/..." header (or a traditional patch
+ * header). Read hunks that belong to this patch into fragments and hang
+ * them to the given patch structure.
+ *
+ * The (fragment->patch, fragment->size) pair points into the memory given
+ * by the caller, not a copy, when we return.
+ *
+ * Returns:
+ * -1 in case of error,
+ * the number of bytes in the patch otherwise.
+ */
+static int parse_single_patch(struct apply_state *state,
+ const char *line,
+ unsigned long size,
+ struct patch *patch)
+{
+ unsigned long offset = 0;
+ unsigned long oldlines = 0, newlines = 0, context = 0;
+ struct fragment **fragp = &patch->fragments;
+
+ while (size > 4 && !memcmp(line, "@@ -", 4)) {
+ struct fragment *fragment;
+ int len;
+
+ fragment = xcalloc(1, sizeof(*fragment));
+ fragment->linenr = state->linenr;
+ len = parse_fragment(state, line, size, patch, fragment);
+ if (len <= 0) {
+ free(fragment);
+ return error(_("corrupt patch at line %d"), state->linenr);
+ }
+ fragment->patch = line;
+ fragment->size = len;
+ oldlines += fragment->oldlines;
+ newlines += fragment->newlines;
+ context += fragment->leading + fragment->trailing;
+
+ *fragp = fragment;
+ fragp = &fragment->next;
+
+ offset += len;
+ line += len;
+ size -= len;
+ }
+
+ /*
+ * If something was removed (i.e. we have old-lines) it cannot
+ * be creation, and if something was added it cannot be
+ * deletion. However, the reverse is not true; --unified=0
+ * patches that only add are not necessarily creation even
+ * though they do not have any old lines, and ones that only
+ * delete are not necessarily deletion.
+ *
+ * Unfortunately, a real creation/deletion patch do _not_ have
+ * any context line by definition, so we cannot safely tell it
+ * apart with --unified=0 insanity. At least if the patch has
+ * more than one hunk it is not creation or deletion.
+ */
+ if (patch->is_new < 0 &&
+ (oldlines || (patch->fragments && patch->fragments->next)))
+ patch->is_new = 0;
+ if (patch->is_delete < 0 &&
+ (newlines || (patch->fragments && patch->fragments->next)))
+ patch->is_delete = 0;
+
+ if (0 < patch->is_new && oldlines)
+ return error(_("new file %s depends on old contents"), patch->new_name);
+ if (0 < patch->is_delete && newlines)
+ return error(_("deleted file %s still has contents"), patch->old_name);
+ if (!patch->is_delete && !newlines && context && state->apply_verbosity > verbosity_silent)
+ fprintf_ln(stderr,
+ _("** warning: "
+ "file %s becomes empty but is not deleted"),
+ patch->new_name);
+
+ return offset;
+}
+
+static inline int metadata_changes(struct patch *patch)
+{
+ return patch->is_rename > 0 ||
+ patch->is_copy > 0 ||
+ patch->is_new > 0 ||
+ patch->is_delete ||
+ (patch->old_mode && patch->new_mode &&
+ patch->old_mode != patch->new_mode);
+}
+
+static char *inflate_it(const void *data, unsigned long size,
+ unsigned long inflated_size)
+{
+ git_zstream stream;
+ void *out;
+ int st;
+
+ memset(&stream, 0, sizeof(stream));
+
+ stream.next_in = (unsigned char *)data;
+ stream.avail_in = size;
+ stream.next_out = out = xmalloc(inflated_size);
+ stream.avail_out = inflated_size;
+ git_inflate_init(&stream);
+ st = git_inflate(&stream, Z_FINISH);
+ git_inflate_end(&stream);
+ if ((st != Z_STREAM_END) || stream.total_out != inflated_size) {
+ free(out);
+ return NULL;
+ }
+ return out;
+}
+
+/*
+ * Read a binary hunk and return a new fragment; fragment->patch
+ * points at an allocated memory that the caller must free, so
+ * it is marked as "->free_patch = 1".
+ */
+static struct fragment *parse_binary_hunk(struct apply_state *state,
+ char **buf_p,
+ unsigned long *sz_p,
+ int *status_p,
+ int *used_p)
+{
+ /*
+ * Expect a line that begins with binary patch method ("literal"
+ * or "delta"), followed by the length of data before deflating.
+ * a sequence of 'length-byte' followed by base-85 encoded data
+ * should follow, terminated by a newline.
+ *
+ * Each 5-byte sequence of base-85 encodes up to 4 bytes,
+ * and we would limit the patch line to 66 characters,
+ * so one line can fit up to 13 groups that would decode
+ * to 52 bytes max. The length byte 'A'-'Z' corresponds
+ * to 1-26 bytes, and 'a'-'z' corresponds to 27-52 bytes.
+ */
+ int llen, used;
+ unsigned long size = *sz_p;
+ char *buffer = *buf_p;
+ int patch_method;
+ unsigned long origlen;
+ char *data = NULL;
+ int hunk_size = 0;
+ struct fragment *frag;
+
+ llen = linelen(buffer, size);
+ used = llen;
+
+ *status_p = 0;
+
+ if (starts_with(buffer, "delta ")) {
+ patch_method = BINARY_DELTA_DEFLATED;
+ origlen = strtoul(buffer + 6, NULL, 10);
+ }
+ else if (starts_with(buffer, "literal ")) {
+ patch_method = BINARY_LITERAL_DEFLATED;
+ origlen = strtoul(buffer + 8, NULL, 10);
+ }
+ else
+ return NULL;
+
+ state->linenr++;
+ buffer += llen;
+ while (1) {
+ int byte_length, max_byte_length, newsize;
+ llen = linelen(buffer, size);
+ used += llen;
+ state->linenr++;
+ if (llen == 1) {
+ /* consume the blank line */
+ buffer++;
+ size--;
+ break;
+ }
+ /*
+ * Minimum line is "A00000\n" which is 7-byte long,
+ * and the line length must be multiple of 5 plus 2.
+ */
+ if ((llen < 7) || (llen-2) % 5)
+ goto corrupt;
+ max_byte_length = (llen - 2) / 5 * 4;
+ byte_length = *buffer;
+ if ('A' <= byte_length && byte_length <= 'Z')
+ byte_length = byte_length - 'A' + 1;
+ else if ('a' <= byte_length && byte_length <= 'z')
+ byte_length = byte_length - 'a' + 27;
+ else
+ goto corrupt;
+ /* if the input length was not multiple of 4, we would
+ * have filler at the end but the filler should never
+ * exceed 3 bytes
+ */
+ if (max_byte_length < byte_length ||
+ byte_length <= max_byte_length - 4)
+ goto corrupt;
+ newsize = hunk_size + byte_length;
+ data = xrealloc(data, newsize);
+ if (decode_85(data + hunk_size, buffer + 1, byte_length))
+ goto corrupt;
+ hunk_size = newsize;
+ buffer += llen;
+ size -= llen;
+ }
+
+ frag = xcalloc(1, sizeof(*frag));
+ frag->patch = inflate_it(data, hunk_size, origlen);
+ frag->free_patch = 1;
+ if (!frag->patch)
+ goto corrupt;
+ free(data);
+ frag->size = origlen;
+ *buf_p = buffer;
+ *sz_p = size;
+ *used_p = used;
+ frag->binary_patch_method = patch_method;
+ return frag;
+
+ corrupt:
+ free(data);
+ *status_p = -1;
+ error(_("corrupt binary patch at line %d: %.*s"),
+ state->linenr-1, llen-1, buffer);
+ return NULL;
+}
+
+/*
+ * Returns:
+ * -1 in case of error,
+ * the length of the parsed binary patch otherwise
+ */
+static int parse_binary(struct apply_state *state,
+ char *buffer,
+ unsigned long size,
+ struct patch *patch)
+{
+ /*
+ * We have read "GIT binary patch\n"; what follows is a line
+ * that says the patch method (currently, either "literal" or
+ * "delta") and the length of data before deflating; a
+ * sequence of 'length-byte' followed by base-85 encoded data
+ * follows.
+ *
+ * When a binary patch is reversible, there is another binary
+ * hunk in the same format, starting with patch method (either
+ * "literal" or "delta") with the length of data, and a sequence
+ * of length-byte + base-85 encoded data, terminated with another
+ * empty line. This data, when applied to the postimage, produces
+ * the preimage.
+ */
+ struct fragment *forward;
+ struct fragment *reverse;
+ int status;
+ int used, used_1;
+
+ forward = parse_binary_hunk(state, &buffer, &size, &status, &used);
+ if (!forward && !status)
+ /* there has to be one hunk (forward hunk) */
+ return error(_("unrecognized binary patch at line %d"), state->linenr-1);
+ if (status)
+ /* otherwise we already gave an error message */
+ return status;
+
+ reverse = parse_binary_hunk(state, &buffer, &size, &status, &used_1);
+ if (reverse)
+ used += used_1;
+ else if (status) {
+ /*
+ * Not having reverse hunk is not an error, but having
+ * a corrupt reverse hunk is.
+ */
+ free((void*) forward->patch);
+ free(forward);
+ return status;
+ }
+ forward->next = reverse;
+ patch->fragments = forward;
+ patch->is_binary = 1;
+ return used;
+}
+
+static void prefix_one(struct apply_state *state, char **name)
+{
+ char *old_name = *name;
+ if (!old_name)
+ return;
+ *name = xstrdup(prefix_filename(state->prefix, state->prefix_length, *name));
+ free(old_name);
+}
+
+static void prefix_patch(struct apply_state *state, struct patch *p)
+{
+ if (!state->prefix || p->is_toplevel_relative)
+ return;
+ prefix_one(state, &p->new_name);
+ prefix_one(state, &p->old_name);
+}
+
+/*
+ * include/exclude
+ */
+
+static void add_name_limit(struct apply_state *state,
+ const char *name,
+ int exclude)
+{
+ struct string_list_item *it;
+
+ it = string_list_append(&state->limit_by_name, name);
+ it->util = exclude ? NULL : (void *) 1;
+}
+
+static int use_patch(struct apply_state *state, struct patch *p)
+{
+ const char *pathname = p->new_name ? p->new_name : p->old_name;
+ int i;
+
+ /* Paths outside are not touched regardless of "--include" */
+ if (0 < state->prefix_length) {
+ int pathlen = strlen(pathname);
+ if (pathlen <= state->prefix_length ||
+ memcmp(state->prefix, pathname, state->prefix_length))
+ return 0;
+ }
+
+ /* See if it matches any of exclude/include rule */
+ for (i = 0; i < state->limit_by_name.nr; i++) {
+ struct string_list_item *it = &state->limit_by_name.items[i];
+ if (!wildmatch(it->string, pathname, 0, NULL))
+ return (it->util != NULL);
+ }
+
+ /*
+ * If we had any include, a path that does not match any rule is
+ * not used. Otherwise, we saw bunch of exclude rules (or none)
+ * and such a path is used.
+ */
+ return !state->has_include;
+}
+
+/*
+ * Read the patch text in "buffer" that extends for "size" bytes; stop
+ * reading after seeing a single patch (i.e. changes to a single file).
+ * Create fragments (i.e. patch hunks) and hang them to the given patch.
+ *
+ * Returns:
+ * -1 if no header was found or parse_binary() failed,
+ * -128 on another error,
+ * the number of bytes consumed otherwise,
+ * so that the caller can call us again for the next patch.
+ */
+static int parse_chunk(struct apply_state *state, char *buffer, unsigned long size, struct patch *patch)
+{
+ int hdrsize, patchsize;
+ int offset = find_header(state, buffer, size, &hdrsize, patch);
+
+ if (offset < 0)
+ return offset;
+
+ prefix_patch(state, patch);
+
+ if (!use_patch(state, patch))
+ patch->ws_rule = 0;
+ else
+ patch->ws_rule = whitespace_rule(patch->new_name
+ ? patch->new_name
+ : patch->old_name);
+
+ patchsize = parse_single_patch(state,
+ buffer + offset + hdrsize,
+ size - offset - hdrsize,
+ patch);
+
+ if (patchsize < 0)
+ return -128;
+
+ if (!patchsize) {
+ static const char git_binary[] = "GIT binary patch\n";
+ int hd = hdrsize + offset;
+ unsigned long llen = linelen(buffer + hd, size - hd);
+
+ if (llen == sizeof(git_binary) - 1 &&
+ !memcmp(git_binary, buffer + hd, llen)) {
+ int used;
+ state->linenr++;
+ used = parse_binary(state, buffer + hd + llen,
+ size - hd - llen, patch);
+ if (used < 0)
+ return -1;
+ if (used)
+ patchsize = used + llen;
+ else
+ patchsize = 0;
+ }
+ else if (!memcmp(" differ\n", buffer + hd + llen - 8, 8)) {
+ static const char *binhdr[] = {
+ "Binary files ",
+ "Files ",
+ NULL,
+ };
+ int i;
+ for (i = 0; binhdr[i]; i++) {
+ int len = strlen(binhdr[i]);
+ if (len < size - hd &&
+ !memcmp(binhdr[i], buffer + hd, len)) {
+ state->linenr++;
+ patch->is_binary = 1;
+ patchsize = llen;
+ break;
+ }
+ }
+ }
+
+ /* Empty patch cannot be applied if it is a text patch
+ * without metadata change. A binary patch appears
+ * empty to us here.
+ */
+ if ((state->apply || state->check) &&
+ (!patch->is_binary && !metadata_changes(patch))) {
+ error(_("patch with only garbage at line %d"), state->linenr);
+ return -128;
+ }
+ }
+
+ return offset + hdrsize + patchsize;
+}
+
+#define swap(a,b) myswap((a),(b),sizeof(a))
+
+#define myswap(a, b, size) do { \
+ unsigned char mytmp[size]; \
+ memcpy(mytmp, &a, size); \
+ memcpy(&a, &b, size); \
+ memcpy(&b, mytmp, size); \
+} while (0)
+
+static void reverse_patches(struct patch *p)
+{
+ for (; p; p = p->next) {
+ struct fragment *frag = p->fragments;
+
+ swap(p->new_name, p->old_name);
+ swap(p->new_mode, p->old_mode);
+ swap(p->is_new, p->is_delete);
+ swap(p->lines_added, p->lines_deleted);
+ swap(p->old_sha1_prefix, p->new_sha1_prefix);
+
+ for (; frag; frag = frag->next) {
+ swap(frag->newpos, frag->oldpos);
+ swap(frag->newlines, frag->oldlines);
+ }
+ }
+}
+
+static const char pluses[] =
+"++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++";
+static const char minuses[]=
+"----------------------------------------------------------------------";
+
+static void show_stats(struct apply_state *state, struct patch *patch)
+{
+ struct strbuf qname = STRBUF_INIT;
+ char *cp = patch->new_name ? patch->new_name : patch->old_name;
+ int max, add, del;
+
+ quote_c_style(cp, &qname, NULL, 0);
+
+ /*
+ * "scale" the filename
+ */
+ max = state->max_len;
+ if (max > 50)
+ max = 50;
+
+ if (qname.len > max) {
+ cp = strchr(qname.buf + qname.len + 3 - max, '/');
+ if (!cp)
+ cp = qname.buf + qname.len + 3 - max;
+ strbuf_splice(&qname, 0, cp - qname.buf, "...", 3);
+ }
+
+ if (patch->is_binary) {
+ printf(" %-*s | Bin\n", max, qname.buf);
+ strbuf_release(&qname);
+ return;
+ }
+
+ printf(" %-*s |", max, qname.buf);
+ strbuf_release(&qname);
+
+ /*
+ * scale the add/delete
+ */
+ max = max + state->max_change > 70 ? 70 - max : state->max_change;
+ add = patch->lines_added;
+ del = patch->lines_deleted;
+
+ if (state->max_change > 0) {
+ int total = ((add + del) * max + state->max_change / 2) / state->max_change;
+ add = (add * max + state->max_change / 2) / state->max_change;
+ del = total - add;
+ }
+ printf("%5d %.*s%.*s\n", patch->lines_added + patch->lines_deleted,
+ add, pluses, del, minuses);
+}
+
+static int read_old_data(struct stat *st, const char *path, struct strbuf *buf)
+{
+ switch (st->st_mode & S_IFMT) {
+ case S_IFLNK:
+ if (strbuf_readlink(buf, path, st->st_size) < 0)
+ return error(_("unable to read symlink %s"), path);
+ return 0;
+ case S_IFREG:
+ if (strbuf_read_file(buf, path, st->st_size) != st->st_size)
+ return error(_("unable to open or read %s"), path);
+ convert_to_git(path, buf->buf, buf->len, buf, 0);
+ return 0;
+ default:
+ return -1;
+ }
+}
+
+/*
+ * Update the preimage, and the common lines in postimage,
+ * from buffer buf of length len. If postlen is 0 the postimage
+ * is updated in place, otherwise it's updated on a new buffer
+ * of length postlen
+ */
+
+static void update_pre_post_images(struct image *preimage,
+ struct image *postimage,
+ char *buf,
+ size_t len, size_t postlen)
+{
+ int i, ctx, reduced;
+ char *new, *old, *fixed;
+ struct image fixed_preimage;
+
+ /*
+ * Update the preimage with whitespace fixes. Note that we
+ * are not losing preimage->buf -- apply_one_fragment() will
+ * free "oldlines".
+ */
+ prepare_image(&fixed_preimage, buf, len, 1);
+ assert(postlen
+ ? fixed_preimage.nr == preimage->nr
+ : fixed_preimage.nr <= preimage->nr);
+ for (i = 0; i < fixed_preimage.nr; i++)
+ fixed_preimage.line[i].flag = preimage->line[i].flag;
+ free(preimage->line_allocated);
+ *preimage = fixed_preimage;
+
+ /*
+ * Adjust the common context lines in postimage. This can be
+ * done in-place when we are shrinking it with whitespace
+ * fixing, but needs a new buffer when ignoring whitespace or
+ * expanding leading tabs to spaces.
+ *
+ * We trust the caller to tell us if the update can be done
+ * in place (postlen==0) or not.
+ */
+ old = postimage->buf;
+ if (postlen)
+ new = postimage->buf = xmalloc(postlen);
+ else
+ new = old;
+ fixed = preimage->buf;
+
+ for (i = reduced = ctx = 0; i < postimage->nr; i++) {
+ size_t l_len = postimage->line[i].len;
+ if (!(postimage->line[i].flag & LINE_COMMON)) {
+ /* an added line -- no counterparts in preimage */
+ memmove(new, old, l_len);
+ old += l_len;
+ new += l_len;
+ continue;
+ }
+
+ /* a common context -- skip it in the original postimage */
+ old += l_len;
+
+ /* and find the corresponding one in the fixed preimage */
+ while (ctx < preimage->nr &&
+ !(preimage->line[ctx].flag & LINE_COMMON)) {
+ fixed += preimage->line[ctx].len;
+ ctx++;
+ }
+
+ /*
+ * preimage is expected to run out, if the caller
+ * fixed addition of trailing blank lines.
+ */
+ if (preimage->nr <= ctx) {
+ reduced++;
+ continue;
+ }
+
+ /* and copy it in, while fixing the line length */
+ l_len = preimage->line[ctx].len;
+ memcpy(new, fixed, l_len);
+ new += l_len;
+ fixed += l_len;
+ postimage->line[i].len = l_len;
+ ctx++;
+ }
+
+ if (postlen
+ ? postlen < new - postimage->buf
+ : postimage->len < new - postimage->buf)
+ die("BUG: caller miscounted postlen: asked %d, orig = %d, used = %d",
+ (int)postlen, (int) postimage->len, (int)(new - postimage->buf));
+
+ /* Fix the length of the whole thing */
+ postimage->len = new - postimage->buf;
+ postimage->nr -= reduced;
+}
+
+static int line_by_line_fuzzy_match(struct image *img,
+ struct image *preimage,
+ struct image *postimage,
+ unsigned long try,
+ int try_lno,
+ int preimage_limit)
+{
+ int i;
+ size_t imgoff = 0;
+ size_t preoff = 0;
+ size_t postlen = postimage->len;
+ size_t extra_chars;
+ char *buf;
+ char *preimage_eof;
+ char *preimage_end;
+ struct strbuf fixed;
+ char *fixed_buf;
+ size_t fixed_len;
+
+ for (i = 0; i < preimage_limit; i++) {
+ size_t prelen = preimage->line[i].len;
+ size_t imglen = img->line[try_lno+i].len;
+
+ if (!fuzzy_matchlines(img->buf + try + imgoff, imglen,
+ preimage->buf + preoff, prelen))
+ return 0;
+ if (preimage->line[i].flag & LINE_COMMON)
+ postlen += imglen - prelen;
+ imgoff += imglen;
+ preoff += prelen;
+ }
+
+ /*
+ * Ok, the preimage matches with whitespace fuzz.
+ *
+ * imgoff now holds the true length of the target that
+ * matches the preimage before the end of the file.
+ *
+ * Count the number of characters in the preimage that fall
+ * beyond the end of the file and make sure that all of them
+ * are whitespace characters. (This can only happen if
+ * we are removing blank lines at the end of the file.)
+ */
+ buf = preimage_eof = preimage->buf + preoff;
+ for ( ; i < preimage->nr; i++)
+ preoff += preimage->line[i].len;
+ preimage_end = preimage->buf + preoff;
+ for ( ; buf < preimage_end; buf++)
+ if (!isspace(*buf))
+ return 0;
+
+ /*
+ * Update the preimage and the common postimage context
+ * lines to use the same whitespace as the target.
+ * If whitespace is missing in the target (i.e.
+ * if the preimage extends beyond the end of the file),
+ * use the whitespace from the preimage.
+ */
+ extra_chars = preimage_end - preimage_eof;
+ strbuf_init(&fixed, imgoff + extra_chars);
+ strbuf_add(&fixed, img->buf + try, imgoff);
+ strbuf_add(&fixed, preimage_eof, extra_chars);
+ fixed_buf = strbuf_detach(&fixed, &fixed_len);
+ update_pre_post_images(preimage, postimage,
+ fixed_buf, fixed_len, postlen);
+ return 1;
+}
+
+static int match_fragment(struct apply_state *state,
+ struct image *img,
+ struct image *preimage,
+ struct image *postimage,
+ unsigned long try,
+ int try_lno,
+ unsigned ws_rule,
+ int match_beginning, int match_end)
+{
+ int i;
+ char *fixed_buf, *buf, *orig, *target;
+ struct strbuf fixed;
+ size_t fixed_len, postlen;
+ int preimage_limit;
+
+ if (preimage->nr + try_lno <= img->nr) {
+ /*
+ * The hunk falls within the boundaries of img.
+ */
+ preimage_limit = preimage->nr;
+ if (match_end && (preimage->nr + try_lno != img->nr))
+ return 0;
+ } else if (state->ws_error_action == correct_ws_error &&
+ (ws_rule & WS_BLANK_AT_EOF)) {
+ /*
+ * This hunk extends beyond the end of img, and we are
+ * removing blank lines at the end of the file. This
+ * many lines from the beginning of the preimage must
+ * match with img, and the remainder of the preimage
+ * must be blank.
+ */
+ preimage_limit = img->nr - try_lno;
+ } else {
+ /*
+ * The hunk extends beyond the end of the img and
+ * we are not removing blanks at the end, so we
+ * should reject the hunk at this position.
+ */
+ return 0;
+ }
+
+ if (match_beginning && try_lno)
+ return 0;
+
+ /* Quick hash check */
+ for (i = 0; i < preimage_limit; i++)
+ if ((img->line[try_lno + i].flag & LINE_PATCHED) ||
+ (preimage->line[i].hash != img->line[try_lno + i].hash))
+ return 0;
+
+ if (preimage_limit == preimage->nr) {
+ /*
+ * Do we have an exact match? If we were told to match
+ * at the end, size must be exactly at try+fragsize,
+ * otherwise try+fragsize must be still within the preimage,
+ * and either case, the old piece should match the preimage
+ * exactly.
+ */
+ if ((match_end
+ ? (try + preimage->len == img->len)
+ : (try + preimage->len <= img->len)) &&
+ !memcmp(img->buf + try, preimage->buf, preimage->len))
+ return 1;
+ } else {
+ /*
+ * The preimage extends beyond the end of img, so
+ * there cannot be an exact match.
+ *
+ * There must be one non-blank context line that match
+ * a line before the end of img.
+ */
+ char *buf_end;
+
+ buf = preimage->buf;
+ buf_end = buf;
+ for (i = 0; i < preimage_limit; i++)
+ buf_end += preimage->line[i].len;
+
+ for ( ; buf < buf_end; buf++)
+ if (!isspace(*buf))
+ break;
+ if (buf == buf_end)
+ return 0;
+ }
+
+ /*
+ * No exact match. If we are ignoring whitespace, run a line-by-line
+ * fuzzy matching. We collect all the line length information because
+ * we need it to adjust whitespace if we match.
+ */
+ if (state->ws_ignore_action == ignore_ws_change)
+ return line_by_line_fuzzy_match(img, preimage, postimage,
+ try, try_lno, preimage_limit);
+
+ if (state->ws_error_action != correct_ws_error)
+ return 0;
+
+ /*
+ * The hunk does not apply byte-by-byte, but the hash says
+ * it might with whitespace fuzz. We weren't asked to
+ * ignore whitespace, we were asked to correct whitespace
+ * errors, so let's try matching after whitespace correction.
+ *
+ * While checking the preimage against the target, whitespace
+ * errors in both fixed, we count how large the corresponding
+ * postimage needs to be. The postimage prepared by
+ * apply_one_fragment() has whitespace errors fixed on added
+ * lines already, but the common lines were propagated as-is,
+ * which may become longer when their whitespace errors are
+ * fixed.
+ */
+
+ /* First count added lines in postimage */
+ postlen = 0;
+ for (i = 0; i < postimage->nr; i++) {
+ if (!(postimage->line[i].flag & LINE_COMMON))
+ postlen += postimage->line[i].len;
+ }
+
+ /*
+ * The preimage may extend beyond the end of the file,
+ * but in this loop we will only handle the part of the
+ * preimage that falls within the file.
+ */
+ strbuf_init(&fixed, preimage->len + 1);
+ orig = preimage->buf;
+ target = img->buf + try;
+ for (i = 0; i < preimage_limit; i++) {
+ size_t oldlen = preimage->line[i].len;
+ size_t tgtlen = img->line[try_lno + i].len;
+ size_t fixstart = fixed.len;
+ struct strbuf tgtfix;
+ int match;
+
+ /* Try fixing the line in the preimage */
+ ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL);
+
+ /* Try fixing the line in the target */
+ strbuf_init(&tgtfix, tgtlen);
+ ws_fix_copy(&tgtfix, target, tgtlen, ws_rule, NULL);
+
+ /*
+ * If they match, either the preimage was based on
+ * a version before our tree fixed whitespace breakage,
+ * or we are lacking a whitespace-fix patch the tree
+ * the preimage was based on already had (i.e. target
+ * has whitespace breakage, the preimage doesn't).
+ * In either case, we are fixing the whitespace breakages
+ * so we might as well take the fix together with their
+ * real change.
+ */
+ match = (tgtfix.len == fixed.len - fixstart &&
+ !memcmp(tgtfix.buf, fixed.buf + fixstart,
+ fixed.len - fixstart));
+
+ /* Add the length if this is common with the postimage */
+ if (preimage->line[i].flag & LINE_COMMON)
+ postlen += tgtfix.len;
+
+ strbuf_release(&tgtfix);
+ if (!match)
+ goto unmatch_exit;
+
+ orig += oldlen;
+ target += tgtlen;
+ }
+
+
+ /*
+ * Now handle the lines in the preimage that falls beyond the
+ * end of the file (if any). They will only match if they are
+ * empty or only contain whitespace (if WS_BLANK_AT_EOL is
+ * false).
+ */
+ for ( ; i < preimage->nr; i++) {
+ size_t fixstart = fixed.len; /* start of the fixed preimage */
+ size_t oldlen = preimage->line[i].len;
+ int j;
+
+ /* Try fixing the line in the preimage */
+ ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL);
+
+ for (j = fixstart; j < fixed.len; j++)
+ if (!isspace(fixed.buf[j]))
+ goto unmatch_exit;
+
+ orig += oldlen;
+ }
+
+ /*
+ * Yes, the preimage is based on an older version that still
+ * has whitespace breakages unfixed, and fixing them makes the
+ * hunk match. Update the context lines in the postimage.
+ */
+ fixed_buf = strbuf_detach(&fixed, &fixed_len);
+ if (postlen < postimage->len)
+ postlen = 0;
+ update_pre_post_images(preimage, postimage,
+ fixed_buf, fixed_len, postlen);
+ return 1;
+
+ unmatch_exit:
+ strbuf_release(&fixed);
+ return 0;
+}
+
+static int find_pos(struct apply_state *state,
+ struct image *img,
+ struct image *preimage,
+ struct image *postimage,
+ int line,
+ unsigned ws_rule,
+ int match_beginning, int match_end)
+{
+ int i;
+ unsigned long backwards, forwards, try;
+ int backwards_lno, forwards_lno, try_lno;
+
+ /*
+ * If match_beginning or match_end is specified, there is no
+ * point starting from a wrong line that will never match and
+ * wander around and wait for a match at the specified end.
+ */
+ if (match_beginning)
+ line = 0;
+ else if (match_end)
+ line = img->nr - preimage->nr;
+
+ /*
+ * Because the comparison is unsigned, the following test
+ * will also take care of a negative line number that can
+ * result when match_end and preimage is larger than the target.
+ */
+ if ((size_t) line > img->nr)
+ line = img->nr;
+
+ try = 0;
+ for (i = 0; i < line; i++)
+ try += img->line[i].len;
+
+ /*
+ * There's probably some smart way to do this, but I'll leave
+ * that to the smart and beautiful people. I'm simple and stupid.
+ */
+ backwards = try;
+ backwards_lno = line;
+ forwards = try;
+ forwards_lno = line;
+ try_lno = line;
+
+ for (i = 0; ; i++) {
+ if (match_fragment(state, img, preimage, postimage,
+ try, try_lno, ws_rule,
+ match_beginning, match_end))
+ return try_lno;
+
+ again:
+ if (backwards_lno == 0 && forwards_lno == img->nr)
+ break;
+
+ if (i & 1) {
+ if (backwards_lno == 0) {
+ i++;
+ goto again;
+ }
+ backwards_lno--;
+ backwards -= img->line[backwards_lno].len;
+ try = backwards;
+ try_lno = backwards_lno;
+ } else {
+ if (forwards_lno == img->nr) {
+ i++;
+ goto again;
+ }
+ forwards += img->line[forwards_lno].len;
+ forwards_lno++;
+ try = forwards;
+ try_lno = forwards_lno;
+ }
+
+ }
+ return -1;
+}
+
+static void remove_first_line(struct image *img)
+{
+ img->buf += img->line[0].len;
+ img->len -= img->line[0].len;
+ img->line++;
+ img->nr--;
+}
+
+static void remove_last_line(struct image *img)
+{
+ img->len -= img->line[--img->nr].len;
+}
+
+/*
+ * The change from "preimage" and "postimage" has been found to
+ * apply at applied_pos (counts in line numbers) in "img".
+ * Update "img" to remove "preimage" and replace it with "postimage".
+ */
+static void update_image(struct apply_state *state,
+ struct image *img,
+ int applied_pos,
+ struct image *preimage,
+ struct image *postimage)
+{
+ /*
+ * remove the copy of preimage at offset in img
+ * and replace it with postimage
+ */
+ int i, nr;
+ size_t remove_count, insert_count, applied_at = 0;
+ char *result;
+ int preimage_limit;
+
+ /*
+ * If we are removing blank lines at the end of img,
+ * the preimage may extend beyond the end.
+ * If that is the case, we must be careful only to
+ * remove the part of the preimage that falls within
+ * the boundaries of img. Initialize preimage_limit
+ * to the number of lines in the preimage that falls
+ * within the boundaries.
+ */
+ preimage_limit = preimage->nr;
+ if (preimage_limit > img->nr - applied_pos)
+ preimage_limit = img->nr - applied_pos;
+
+ for (i = 0; i < applied_pos; i++)
+ applied_at += img->line[i].len;
+
+ remove_count = 0;
+ for (i = 0; i < preimage_limit; i++)
+ remove_count += img->line[applied_pos + i].len;
+ insert_count = postimage->len;
+
+ /* Adjust the contents */
+ result = xmalloc(st_add3(st_sub(img->len, remove_count), insert_count, 1));
+ memcpy(result, img->buf, applied_at);
+ memcpy(result + applied_at, postimage->buf, postimage->len);
+ memcpy(result + applied_at + postimage->len,
+ img->buf + (applied_at + remove_count),
+ img->len - (applied_at + remove_count));
+ free(img->buf);
+ img->buf = result;
+ img->len += insert_count - remove_count;
+ result[img->len] = '\0';
+
+ /* Adjust the line table */
+ nr = img->nr + postimage->nr - preimage_limit;
+ if (preimage_limit < postimage->nr) {
+ /*
+ * NOTE: this knows that we never call remove_first_line()
+ * on anything other than pre/post image.
+ */
+ REALLOC_ARRAY(img->line, nr);
+ img->line_allocated = img->line;
+ }
+ if (preimage_limit != postimage->nr)
+ memmove(img->line + applied_pos + postimage->nr,
+ img->line + applied_pos + preimage_limit,
+ (img->nr - (applied_pos + preimage_limit)) *
+ sizeof(*img->line));
+ memcpy(img->line + applied_pos,
+ postimage->line,
+ postimage->nr * sizeof(*img->line));
+ if (!state->allow_overlap)
+ for (i = 0; i < postimage->nr; i++)
+ img->line[applied_pos + i].flag |= LINE_PATCHED;
+ img->nr = nr;
+}
+
+/*
+ * Use the patch-hunk text in "frag" to prepare two images (preimage and
+ * postimage) for the hunk. Find lines that match "preimage" in "img" and
+ * replace the part of "img" with "postimage" text.
+ */
+static int apply_one_fragment(struct apply_state *state,
+ struct image *img, struct fragment *frag,
+ int inaccurate_eof, unsigned ws_rule,
+ int nth_fragment)
+{
+ int match_beginning, match_end;
+ const char *patch = frag->patch;
+ int size = frag->size;
+ char *old, *oldlines;
+ struct strbuf newlines;
+ int new_blank_lines_at_end = 0;
+ int found_new_blank_lines_at_end = 0;
+ int hunk_linenr = frag->linenr;
+ unsigned long leading, trailing;
+ int pos, applied_pos;
+ struct image preimage;
+ struct image postimage;
+
+ memset(&preimage, 0, sizeof(preimage));
+ memset(&postimage, 0, sizeof(postimage));
+ oldlines = xmalloc(size);
+ strbuf_init(&newlines, size);
+
+ old = oldlines;
+ while (size > 0) {
+ char first;
+ int len = linelen(patch, size);
+ int plen;
+ int added_blank_line = 0;
+ int is_blank_context = 0;
+ size_t start;
+
+ if (!len)
+ break;
+
+ /*
+ * "plen" is how much of the line we should use for
+ * the actual patch data. Normally we just remove the
+ * first character on the line, but if the line is
+ * followed by "\ No newline", then we also remove the
+ * last one (which is the newline, of course).
+ */
+ plen = len - 1;
+ if (len < size && patch[len] == '\\')
+ plen--;
+ first = *patch;
+ if (state->apply_in_reverse) {
+ if (first == '-')
+ first = '+';
+ else if (first == '+')
+ first = '-';
+ }
+
+ switch (first) {
+ case '\n':
+ /* Newer GNU diff, empty context line */
+ if (plen < 0)
+ /* ... followed by '\No newline'; nothing */
+ break;
+ *old++ = '\n';
+ strbuf_addch(&newlines, '\n');
+ add_line_info(&preimage, "\n", 1, LINE_COMMON);
+ add_line_info(&postimage, "\n", 1, LINE_COMMON);
+ is_blank_context = 1;
+ break;
+ case ' ':
+ if (plen && (ws_rule & WS_BLANK_AT_EOF) &&
+ ws_blank_line(patch + 1, plen, ws_rule))
+ is_blank_context = 1;
+ case '-':
+ memcpy(old, patch + 1, plen);
+ add_line_info(&preimage, old, plen,
+ (first == ' ' ? LINE_COMMON : 0));
+ old += plen;
+ if (first == '-')
+ break;
+ /* Fall-through for ' ' */
+ case '+':
+ /* --no-add does not add new lines */
+ if (first == '+' && state->no_add)
+ break;
+
+ start = newlines.len;
+ if (first != '+' ||
+ !state->whitespace_error ||
+ state->ws_error_action != correct_ws_error) {
+ strbuf_add(&newlines, patch + 1, plen);
+ }
+ else {
+ ws_fix_copy(&newlines, patch + 1, plen, ws_rule, &state->applied_after_fixing_ws);
+ }
+ add_line_info(&postimage, newlines.buf + start, newlines.len - start,
+ (first == '+' ? 0 : LINE_COMMON));
+ if (first == '+' &&
+ (ws_rule & WS_BLANK_AT_EOF) &&
+ ws_blank_line(patch + 1, plen, ws_rule))
+ added_blank_line = 1;
+ break;
+ case '@': case '\\':
+ /* Ignore it, we already handled it */
+ break;
+ default:
+ if (state->apply_verbosity > verbosity_normal)
+ error(_("invalid start of line: '%c'"), first);
+ applied_pos = -1;
+ goto out;
+ }
+ if (added_blank_line) {
+ if (!new_blank_lines_at_end)
+ found_new_blank_lines_at_end = hunk_linenr;
+ new_blank_lines_at_end++;
+ }
+ else if (is_blank_context)
+ ;
+ else
+ new_blank_lines_at_end = 0;
+ patch += len;
+ size -= len;
+ hunk_linenr++;
+ }
+ if (inaccurate_eof &&
+ old > oldlines && old[-1] == '\n' &&
+ newlines.len > 0 && newlines.buf[newlines.len - 1] == '\n') {
+ old--;
+ strbuf_setlen(&newlines, newlines.len - 1);
+ }
+
+ leading = frag->leading;
+ trailing = frag->trailing;
+
+ /*
+ * A hunk to change lines at the beginning would begin with
+ * @@ -1,L +N,M @@
+ * but we need to be careful. -U0 that inserts before the second
+ * line also has this pattern.
+ *
+ * And a hunk to add to an empty file would begin with
+ * @@ -0,0 +N,M @@
+ *
+ * In other words, a hunk that is (frag->oldpos <= 1) with or
+ * without leading context must match at the beginning.
+ */
+ match_beginning = (!frag->oldpos ||
+ (frag->oldpos == 1 && !state->unidiff_zero));
+
+ /*
+ * A hunk without trailing lines must match at the end.
+ * However, we simply cannot tell if a hunk must match end
+ * from the lack of trailing lines if the patch was generated
+ * with unidiff without any context.
+ */
+ match_end = !state->unidiff_zero && !trailing;
+
+ pos = frag->newpos ? (frag->newpos - 1) : 0;
+ preimage.buf = oldlines;
+ preimage.len = old - oldlines;
+ postimage.buf = newlines.buf;
+ postimage.len = newlines.len;
+ preimage.line = preimage.line_allocated;
+ postimage.line = postimage.line_allocated;
+
+ for (;;) {
+
+ applied_pos = find_pos(state, img, &preimage, &postimage, pos,
+ ws_rule, match_beginning, match_end);
+
+ if (applied_pos >= 0)
+ break;
+
+ /* Am I at my context limits? */
+ if ((leading <= state->p_context) && (trailing <= state->p_context))
+ break;
+ if (match_beginning || match_end) {
+ match_beginning = match_end = 0;
+ continue;
+ }
+
+ /*
+ * Reduce the number of context lines; reduce both
+ * leading and trailing if they are equal otherwise
+ * just reduce the larger context.
+ */
+ if (leading >= trailing) {
+ remove_first_line(&preimage);
+ remove_first_line(&postimage);
+ pos--;
+ leading--;
+ }
+ if (trailing > leading) {
+ remove_last_line(&preimage);
+ remove_last_line(&postimage);
+ trailing--;
+ }
+ }
+
+ if (applied_pos >= 0) {
+ if (new_blank_lines_at_end &&
+ preimage.nr + applied_pos >= img->nr &&
+ (ws_rule & WS_BLANK_AT_EOF) &&
+ state->ws_error_action != nowarn_ws_error) {
+ record_ws_error(state, WS_BLANK_AT_EOF, "+", 1,
+ found_new_blank_lines_at_end);
+ if (state->ws_error_action == correct_ws_error) {
+ while (new_blank_lines_at_end--)
+ remove_last_line(&postimage);
+ }
+ /*
+ * We would want to prevent write_out_results()
+ * from taking place in apply_patch() that follows
+ * the callchain led us here, which is:
+ * apply_patch->check_patch_list->check_patch->
+ * apply_data->apply_fragments->apply_one_fragment
+ */
+ if (state->ws_error_action == die_on_ws_error)
+ state->apply = 0;
+ }
+
+ if (state->apply_verbosity > verbosity_normal && applied_pos != pos) {
+ int offset = applied_pos - pos;
+ if (state->apply_in_reverse)
+ offset = 0 - offset;
+ fprintf_ln(stderr,
+ Q_("Hunk #%d succeeded at %d (offset %d line).",
+ "Hunk #%d succeeded at %d (offset %d lines).",
+ offset),
+ nth_fragment, applied_pos + 1, offset);
+ }
+
+ /*
+ * Warn if it was necessary to reduce the number
+ * of context lines.
+ */
+ if ((leading != frag->leading ||
+ trailing != frag->trailing) && state->apply_verbosity > verbosity_silent)
+ fprintf_ln(stderr, _("Context reduced to (%ld/%ld)"
+ " to apply fragment at %d"),
+ leading, trailing, applied_pos+1);
+ update_image(state, img, applied_pos, &preimage, &postimage);
+ } else {
+ if (state->apply_verbosity > verbosity_normal)
+ error(_("while searching for:\n%.*s"),
+ (int)(old - oldlines), oldlines);
+ }
+
+out:
+ free(oldlines);
+ strbuf_release(&newlines);
+ free(preimage.line_allocated);
+ free(postimage.line_allocated);
+
+ return (applied_pos < 0);
+}
+
+static int apply_binary_fragment(struct apply_state *state,
+ struct image *img,
+ struct patch *patch)
+{
+ struct fragment *fragment = patch->fragments;
+ unsigned long len;
+ void *dst;
+
+ if (!fragment)
+ return error(_("missing binary patch data for '%s'"),
+ patch->new_name ?
+ patch->new_name :
+ patch->old_name);
+
+ /* Binary patch is irreversible without the optional second hunk */
+ if (state->apply_in_reverse) {
+ if (!fragment->next)
+ return error(_("cannot reverse-apply a binary patch "
+ "without the reverse hunk to '%s'"),
+ patch->new_name
+ ? patch->new_name : patch->old_name);
+ fragment = fragment->next;
+ }
+ switch (fragment->binary_patch_method) {
+ case BINARY_DELTA_DEFLATED:
+ dst = patch_delta(img->buf, img->len, fragment->patch,
+ fragment->size, &len);
+ if (!dst)
+ return -1;
+ clear_image(img);
+ img->buf = dst;
+ img->len = len;
+ return 0;
+ case BINARY_LITERAL_DEFLATED:
+ clear_image(img);
+ img->len = fragment->size;
+ img->buf = xmemdupz(fragment->patch, img->len);
+ return 0;
+ }
+ return -1;
+}
+
+/*
+ * Replace "img" with the result of applying the binary patch.
+ * The binary patch data itself in patch->fragment is still kept
+ * but the preimage prepared by the caller in "img" is freed here
+ * or in the helper function apply_binary_fragment() this calls.
+ */
+static int apply_binary(struct apply_state *state,
+ struct image *img,
+ struct patch *patch)
+{
+ const char *name = patch->old_name ? patch->old_name : patch->new_name;
+ struct object_id oid;
+
+ /*
+ * For safety, we require patch index line to contain
+ * full 40-byte textual SHA1 for old and new, at least for now.
+ */
+ if (strlen(patch->old_sha1_prefix) != 40 ||
+ strlen(patch->new_sha1_prefix) != 40 ||
+ get_oid_hex(patch->old_sha1_prefix, &oid) ||
+ get_oid_hex(patch->new_sha1_prefix, &oid))
+ return error(_("cannot apply binary patch to '%s' "
+ "without full index line"), name);
+
+ if (patch->old_name) {
+ /*
+ * See if the old one matches what the patch
+ * applies to.
+ */
+ hash_sha1_file(img->buf, img->len, blob_type, oid.hash);
+ if (strcmp(oid_to_hex(&oid), patch->old_sha1_prefix))
+ return error(_("the patch applies to '%s' (%s), "
+ "which does not match the "
+ "current contents."),
+ name, oid_to_hex(&oid));
+ }
+ else {
+ /* Otherwise, the old one must be empty. */
+ if (img->len)
+ return error(_("the patch applies to an empty "
+ "'%s' but it is not empty"), name);
+ }
+
+ get_oid_hex(patch->new_sha1_prefix, &oid);
+ if (is_null_oid(&oid)) {
+ clear_image(img);
+ return 0; /* deletion patch */
+ }
+
+ if (has_sha1_file(oid.hash)) {
+ /* We already have the postimage */
+ enum object_type type;
+ unsigned long size;
+ char *result;
+
+ result = read_sha1_file(oid.hash, &type, &size);
+ if (!result)
+ return error(_("the necessary postimage %s for "
+ "'%s' cannot be read"),
+ patch->new_sha1_prefix, name);
+ clear_image(img);
+ img->buf = result;
+ img->len = size;
+ } else {
+ /*
+ * We have verified buf matches the preimage;
+ * apply the patch data to it, which is stored
+ * in the patch->fragments->{patch,size}.
+ */
+ if (apply_binary_fragment(state, img, patch))
+ return error(_("binary patch does not apply to '%s'"),
+ name);
+
+ /* verify that the result matches */
+ hash_sha1_file(img->buf, img->len, blob_type, oid.hash);
+ if (strcmp(oid_to_hex(&oid), patch->new_sha1_prefix))
+ return error(_("binary patch to '%s' creates incorrect result (expecting %s, got %s)"),
+ name, patch->new_sha1_prefix, oid_to_hex(&oid));
+ }
+
+ return 0;
+}
+
+static int apply_fragments(struct apply_state *state, struct image *img, struct patch *patch)
+{
+ struct fragment *frag = patch->fragments;
+ const char *name = patch->old_name ? patch->old_name : patch->new_name;
+ unsigned ws_rule = patch->ws_rule;
+ unsigned inaccurate_eof = patch->inaccurate_eof;
+ int nth = 0;
+
+ if (patch->is_binary)
+ return apply_binary(state, img, patch);
+
+ while (frag) {
+ nth++;
+ if (apply_one_fragment(state, img, frag, inaccurate_eof, ws_rule, nth)) {
+ error(_("patch failed: %s:%ld"), name, frag->oldpos);
+ if (!state->apply_with_reject)
+ return -1;
+ frag->rejected = 1;
+ }
+ frag = frag->next;
+ }
+ return 0;
+}
+
+static int read_blob_object(struct strbuf *buf, const struct object_id *oid, unsigned mode)
+{
+ if (S_ISGITLINK(mode)) {
+ strbuf_grow(buf, 100);
+ strbuf_addf(buf, "Subproject commit %s\n", oid_to_hex(oid));
+ } else {
+ enum object_type type;
+ unsigned long sz;
+ char *result;
+
+ result = read_sha1_file(oid->hash, &type, &sz);
+ if (!result)
+ return -1;
+ /* XXX read_sha1_file NUL-terminates */
+ strbuf_attach(buf, result, sz, sz + 1);
+ }
+ return 0;
+}
+
+static int read_file_or_gitlink(const struct cache_entry *ce, struct strbuf *buf)
+{
+ if (!ce)
+ return 0;
+ return read_blob_object(buf, &ce->oid, ce->ce_mode);
+}
+
+static struct patch *in_fn_table(struct apply_state *state, const char *name)
+{
+ struct string_list_item *item;
+
+ if (name == NULL)
+ return NULL;
+
+ item = string_list_lookup(&state->fn_table, name);
+ if (item != NULL)
+ return (struct patch *)item->util;
+
+ return NULL;
+}
+
+/*
+ * item->util in the filename table records the status of the path.
+ * Usually it points at a patch (whose result records the contents
+ * of it after applying it), but it could be PATH_WAS_DELETED for a
+ * path that a previously applied patch has already removed, or
+ * PATH_TO_BE_DELETED for a path that a later patch would remove.
+ *
+ * The latter is needed to deal with a case where two paths A and B
+ * are swapped by first renaming A to B and then renaming B to A;
+ * moving A to B should not be prevented due to presence of B as we
+ * will remove it in a later patch.
+ */
+#define PATH_TO_BE_DELETED ((struct patch *) -2)
+#define PATH_WAS_DELETED ((struct patch *) -1)
+
+static int to_be_deleted(struct patch *patch)
+{
+ return patch == PATH_TO_BE_DELETED;
+}
+
+static int was_deleted(struct patch *patch)
+{
+ return patch == PATH_WAS_DELETED;
+}
+
+static void add_to_fn_table(struct apply_state *state, struct patch *patch)
+{
+ struct string_list_item *item;
+
+ /*
+ * Always add new_name unless patch is a deletion
+ * This should cover the cases for normal diffs,
+ * file creations and copies
+ */
+ if (patch->new_name != NULL) {
+ item = string_list_insert(&state->fn_table, patch->new_name);
+ item->util = patch;
+ }
+
+ /*
+ * store a failure on rename/deletion cases because
+ * later chunks shouldn't patch old names
+ */
+ if ((patch->new_name == NULL) || (patch->is_rename)) {
+ item = string_list_insert(&state->fn_table, patch->old_name);
+ item->util = PATH_WAS_DELETED;
+ }
+}
+
+static void prepare_fn_table(struct apply_state *state, struct patch *patch)
+{
+ /*
+ * store information about incoming file deletion
+ */
+ while (patch) {
+ if ((patch->new_name == NULL) || (patch->is_rename)) {
+ struct string_list_item *item;
+ item = string_list_insert(&state->fn_table, patch->old_name);
+ item->util = PATH_TO_BE_DELETED;
+ }
+ patch = patch->next;
+ }
+}
+
+static int checkout_target(struct index_state *istate,
+ struct cache_entry *ce, struct stat *st)
+{
+ struct checkout costate = CHECKOUT_INIT;
+
+ costate.refresh_cache = 1;
+ costate.istate = istate;
+ if (checkout_entry(ce, &costate, NULL) || lstat(ce->name, st))
+ return error(_("cannot checkout %s"), ce->name);
+ return 0;
+}
+
+static struct patch *previous_patch(struct apply_state *state,
+ struct patch *patch,
+ int *gone)
+{
+ struct patch *previous;
+
+ *gone = 0;
+ if (patch->is_copy || patch->is_rename)
+ return NULL; /* "git" patches do not depend on the order */
+
+ previous = in_fn_table(state, patch->old_name);
+ if (!previous)
+ return NULL;
+
+ if (to_be_deleted(previous))
+ return NULL; /* the deletion hasn't happened yet */
+
+ if (was_deleted(previous))
+ *gone = 1;
+
+ return previous;
+}
+
+static int verify_index_match(const struct cache_entry *ce, struct stat *st)
+{
+ if (S_ISGITLINK(ce->ce_mode)) {
+ if (!S_ISDIR(st->st_mode))
+ return -1;
+ return 0;
+ }
+ return ce_match_stat(ce, st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE);
+}
+
+#define SUBMODULE_PATCH_WITHOUT_INDEX 1
+
+static int load_patch_target(struct apply_state *state,
+ struct strbuf *buf,
+ const struct cache_entry *ce,
+ struct stat *st,
+ const char *name,
+ unsigned expected_mode)
+{
+ if (state->cached || state->check_index) {
+ if (read_file_or_gitlink(ce, buf))
+ return error(_("failed to read %s"), name);
+ } else if (name) {
+ if (S_ISGITLINK(expected_mode)) {
+ if (ce)
+ return read_file_or_gitlink(ce, buf);
+ else
+ return SUBMODULE_PATCH_WITHOUT_INDEX;
+ } else if (has_symlink_leading_path(name, strlen(name))) {
+ return error(_("reading from '%s' beyond a symbolic link"), name);
+ } else {
+ if (read_old_data(st, name, buf))
+ return error(_("failed to read %s"), name);
+ }
+ }
+ return 0;
+}
+
+/*
+ * We are about to apply "patch"; populate the "image" with the
+ * current version we have, from the working tree or from the index,
+ * depending on the situation e.g. --cached/--index. If we are
+ * applying a non-git patch that incrementally updates the tree,
+ * we read from the result of a previous diff.
+ */
+static int load_preimage(struct apply_state *state,
+ struct image *image,
+ struct patch *patch, struct stat *st,
+ const struct cache_entry *ce)
+{
+ struct strbuf buf = STRBUF_INIT;
+ size_t len;
+ char *img;
+ struct patch *previous;
+ int status;
+
+ previous = previous_patch(state, patch, &status);
+ if (status)
+ return error(_("path %s has been renamed/deleted"),
+ patch->old_name);
+ if (previous) {
+ /* We have a patched copy in memory; use that. */
+ strbuf_add(&buf, previous->result, previous->resultsize);
+ } else {
+ status = load_patch_target(state, &buf, ce, st,
+ patch->old_name, patch->old_mode);
+ if (status < 0)
+ return status;
+ else if (status == SUBMODULE_PATCH_WITHOUT_INDEX) {
+ /*
+ * There is no way to apply subproject
+ * patch without looking at the index.
+ * NEEDSWORK: shouldn't this be flagged
+ * as an error???
+ */
+ free_fragment_list(patch->fragments);
+ patch->fragments = NULL;
+ } else if (status) {
+ return error(_("failed to read %s"), patch->old_name);
+ }
+ }
+
+ img = strbuf_detach(&buf, &len);
+ prepare_image(image, img, len, !patch->is_binary);
+ return 0;
+}
+
+static int three_way_merge(struct image *image,
+ char *path,
+ const struct object_id *base,
+ const struct object_id *ours,
+ const struct object_id *theirs)
+{
+ mmfile_t base_file, our_file, their_file;
+ mmbuffer_t result = { NULL };
+ int status;
+
+ read_mmblob(&base_file, base);
+ read_mmblob(&our_file, ours);
+ read_mmblob(&their_file, theirs);
+ status = ll_merge(&result, path,
+ &base_file, "base",
+ &our_file, "ours",
+ &their_file, "theirs", NULL);
+ free(base_file.ptr);
+ free(our_file.ptr);
+ free(their_file.ptr);
+ if (status < 0 || !result.ptr) {
+ free(result.ptr);
+ return -1;
+ }
+ clear_image(image);
+ image->buf = result.ptr;
+ image->len = result.size;
+
+ return status;
+}
+
+/*
+ * When directly falling back to add/add three-way merge, we read from
+ * the current contents of the new_name. In no cases other than that
+ * this function will be called.
+ */
+static int load_current(struct apply_state *state,
+ struct image *image,
+ struct patch *patch)
+{
+ struct strbuf buf = STRBUF_INIT;
+ int status, pos;
+ size_t len;
+ char *img;
+ struct stat st;
+ struct cache_entry *ce;
+ char *name = patch->new_name;
+ unsigned mode = patch->new_mode;
+
+ if (!patch->is_new)
+ die("BUG: patch to %s is not a creation", patch->old_name);
+
+ pos = cache_name_pos(name, strlen(name));
+ if (pos < 0)
+ return error(_("%s: does not exist in index"), name);
+ ce = active_cache[pos];
+ if (lstat(name, &st)) {
+ if (errno != ENOENT)
+ return error_errno("%s", name);
+ if (checkout_target(&the_index, ce, &st))
+ return -1;
+ }
+ if (verify_index_match(ce, &st))
+ return error(_("%s: does not match index"), name);
+
+ status = load_patch_target(state, &buf, ce, &st, name, mode);
+ if (status < 0)
+ return status;
+ else if (status)
+ return -1;
+ img = strbuf_detach(&buf, &len);
+ prepare_image(image, img, len, !patch->is_binary);
+ return 0;
+}
+
+static int try_threeway(struct apply_state *state,
+ struct image *image,
+ struct patch *patch,
+ struct stat *st,
+ const struct cache_entry *ce)
+{
+ struct object_id pre_oid, post_oid, our_oid;
+ struct strbuf buf = STRBUF_INIT;
+ size_t len;
+ int status;
+ char *img;
+ struct image tmp_image;
+
+ /* No point falling back to 3-way merge in these cases */
+ if (patch->is_delete ||
+ S_ISGITLINK(patch->old_mode) || S_ISGITLINK(patch->new_mode))
+ return -1;
+
+ /* Preimage the patch was prepared for */
+ if (patch->is_new)
+ write_sha1_file("", 0, blob_type, pre_oid.hash);
+ else if (get_sha1(patch->old_sha1_prefix, pre_oid.hash) ||
+ read_blob_object(&buf, &pre_oid, patch->old_mode))
+ return error(_("repository lacks the necessary blob to fall back on 3-way merge."));
+
+ if (state->apply_verbosity > verbosity_silent)
+ fprintf(stderr, _("Falling back to three-way merge...\n"));
+
+ img = strbuf_detach(&buf, &len);
+ prepare_image(&tmp_image, img, len, 1);
+ /* Apply the patch to get the post image */
+ if (apply_fragments(state, &tmp_image, patch) < 0) {
+ clear_image(&tmp_image);
+ return -1;
+ }
+ /* post_oid is theirs */
+ write_sha1_file(tmp_image.buf, tmp_image.len, blob_type, post_oid.hash);
+ clear_image(&tmp_image);
+
+ /* our_oid is ours */
+ if (patch->is_new) {
+ if (load_current(state, &tmp_image, patch))
+ return error(_("cannot read the current contents of '%s'"),
+ patch->new_name);
+ } else {
+ if (load_preimage(state, &tmp_image, patch, st, ce))
+ return error(_("cannot read the current contents of '%s'"),
+ patch->old_name);
+ }
+ write_sha1_file(tmp_image.buf, tmp_image.len, blob_type, our_oid.hash);
+ clear_image(&tmp_image);
+
+ /* in-core three-way merge between post and our using pre as base */
+ status = three_way_merge(image, patch->new_name,
+ &pre_oid, &our_oid, &post_oid);
+ if (status < 0) {
+ if (state->apply_verbosity > verbosity_silent)
+ fprintf(stderr,
+ _("Failed to fall back on three-way merge...\n"));
+ return status;
+ }
+
+ if (status) {
+ patch->conflicted_threeway = 1;
+ if (patch->is_new)
+ oidclr(&patch->threeway_stage[0]);
+ else
+ oidcpy(&patch->threeway_stage[0], &pre_oid);
+ oidcpy(&patch->threeway_stage[1], &our_oid);
+ oidcpy(&patch->threeway_stage[2], &post_oid);
+ if (state->apply_verbosity > verbosity_silent)
+ fprintf(stderr,
+ _("Applied patch to '%s' with conflicts.\n"),
+ patch->new_name);
+ } else {
+ if (state->apply_verbosity > verbosity_silent)
+ fprintf(stderr,
+ _("Applied patch to '%s' cleanly.\n"),
+ patch->new_name);
+ }
+ return 0;
+}
+
+static int apply_data(struct apply_state *state, struct patch *patch,
+ struct stat *st, const struct cache_entry *ce)
+{
+ struct image image;
+
+ if (load_preimage(state, &image, patch, st, ce) < 0)
+ return -1;
+
+ if (patch->direct_to_threeway ||
+ apply_fragments(state, &image, patch) < 0) {
+ /* Note: with --reject, apply_fragments() returns 0 */
+ if (!state->threeway || try_threeway(state, &image, patch, st, ce) < 0)
+ return -1;
+ }
+ patch->result = image.buf;
+ patch->resultsize = image.len;
+ add_to_fn_table(state, patch);
+ free(image.line_allocated);
+
+ if (0 < patch->is_delete && patch->resultsize)
+ return error(_("removal patch leaves file contents"));
+
+ return 0;
+}
+
+/*
+ * If "patch" that we are looking at modifies or deletes what we have,
+ * we would want it not to lose any local modification we have, either
+ * in the working tree or in the index.
+ *
+ * This also decides if a non-git patch is a creation patch or a
+ * modification to an existing empty file. We do not check the state
+ * of the current tree for a creation patch in this function; the caller
+ * check_patch() separately makes sure (and errors out otherwise) that
+ * the path the patch creates does not exist in the current tree.
+ */
+static int check_preimage(struct apply_state *state,
+ struct patch *patch,
+ struct cache_entry **ce,
+ struct stat *st)
+{
+ const char *old_name = patch->old_name;
+ struct patch *previous = NULL;
+ int stat_ret = 0, status;
+ unsigned st_mode = 0;
+
+ if (!old_name)
+ return 0;
+
+ assert(patch->is_new <= 0);
+ previous = previous_patch(state, patch, &status);
+
+ if (status)
+ return error(_("path %s has been renamed/deleted"), old_name);
+ if (previous) {
+ st_mode = previous->new_mode;
+ } else if (!state->cached) {
+ stat_ret = lstat(old_name, st);
+ if (stat_ret && errno != ENOENT)
+ return error_errno("%s", old_name);
+ }
+
+ if (state->check_index && !previous) {
+ int pos = cache_name_pos(old_name, strlen(old_name));
+ if (pos < 0) {
+ if (patch->is_new < 0)
+ goto is_new;
+ return error(_("%s: does not exist in index"), old_name);
+ }
+ *ce = active_cache[pos];
+ if (stat_ret < 0) {
+ if (checkout_target(&the_index, *ce, st))
+ return -1;
+ }
+ if (!state->cached && verify_index_match(*ce, st))
+ return error(_("%s: does not match index"), old_name);
+ if (state->cached)
+ st_mode = (*ce)->ce_mode;
+ } else if (stat_ret < 0) {
+ if (patch->is_new < 0)
+ goto is_new;
+ return error_errno("%s", old_name);
+ }
+
+ if (!state->cached && !previous)
+ st_mode = ce_mode_from_stat(*ce, st->st_mode);
+
+ if (patch->is_new < 0)
+ patch->is_new = 0;
+ if (!patch->old_mode)
+ patch->old_mode = st_mode;
+ if ((st_mode ^ patch->old_mode) & S_IFMT)
+ return error(_("%s: wrong type"), old_name);
+ if (st_mode != patch->old_mode)
+ warning(_("%s has type %o, expected %o"),
+ old_name, st_mode, patch->old_mode);
+ if (!patch->new_mode && !patch->is_delete)
+ patch->new_mode = st_mode;
+ return 0;
+
+ is_new:
+ patch->is_new = 1;
+ patch->is_delete = 0;
+ free(patch->old_name);
+ patch->old_name = NULL;
+ return 0;
+}
+
+
+#define EXISTS_IN_INDEX 1
+#define EXISTS_IN_WORKTREE 2
+
+static int check_to_create(struct apply_state *state,
+ const char *new_name,
+ int ok_if_exists)
+{
+ struct stat nst;
+
+ if (state->check_index &&
+ cache_name_pos(new_name, strlen(new_name)) >= 0 &&
+ !ok_if_exists)
+ return EXISTS_IN_INDEX;
+ if (state->cached)
+ return 0;
+
+ if (!lstat(new_name, &nst)) {
+ if (S_ISDIR(nst.st_mode) || ok_if_exists)
+ return 0;
+ /*
+ * A leading component of new_name might be a symlink
+ * that is going to be removed with this patch, but
+ * still pointing at somewhere that has the path.
+ * In such a case, path "new_name" does not exist as
+ * far as git is concerned.
+ */
+ if (has_symlink_leading_path(new_name, strlen(new_name)))
+ return 0;
+
+ return EXISTS_IN_WORKTREE;
+ } else if ((errno != ENOENT) && (errno != ENOTDIR)) {
+ return error_errno("%s", new_name);
+ }
+ return 0;
+}
+
+static uintptr_t register_symlink_changes(struct apply_state *state,
+ const char *path,
+ uintptr_t what)
+{
+ struct string_list_item *ent;
+
+ ent = string_list_lookup(&state->symlink_changes, path);
+ if (!ent) {
+ ent = string_list_insert(&state->symlink_changes, path);
+ ent->util = (void *)0;
+ }
+ ent->util = (void *)(what | ((uintptr_t)ent->util));
+ return (uintptr_t)ent->util;
+}
+
+static uintptr_t check_symlink_changes(struct apply_state *state, const char *path)
+{
+ struct string_list_item *ent;
+
+ ent = string_list_lookup(&state->symlink_changes, path);
+ if (!ent)
+ return 0;
+ return (uintptr_t)ent->util;
+}
+
+static void prepare_symlink_changes(struct apply_state *state, struct patch *patch)
+{
+ for ( ; patch; patch = patch->next) {
+ if ((patch->old_name && S_ISLNK(patch->old_mode)) &&
+ (patch->is_rename || patch->is_delete))
+ /* the symlink at patch->old_name is removed */
+ register_symlink_changes(state, patch->old_name, APPLY_SYMLINK_GOES_AWAY);
+
+ if (patch->new_name && S_ISLNK(patch->new_mode))
+ /* the symlink at patch->new_name is created or remains */
+ register_symlink_changes(state, patch->new_name, APPLY_SYMLINK_IN_RESULT);
+ }
+}
+
+static int path_is_beyond_symlink_1(struct apply_state *state, struct strbuf *name)
+{
+ do {
+ unsigned int change;
+
+ while (--name->len && name->buf[name->len] != '/')
+ ; /* scan backwards */
+ if (!name->len)
+ break;
+ name->buf[name->len] = '\0';
+ change = check_symlink_changes(state, name->buf);
+ if (change & APPLY_SYMLINK_IN_RESULT)
+ return 1;
+ if (change & APPLY_SYMLINK_GOES_AWAY)
+ /*
+ * This cannot be "return 0", because we may
+ * see a new one created at a higher level.
+ */
+ continue;
+
+ /* otherwise, check the preimage */
+ if (state->check_index) {
+ struct cache_entry *ce;
+
+ ce = cache_file_exists(name->buf, name->len, ignore_case);
+ if (ce && S_ISLNK(ce->ce_mode))
+ return 1;
+ } else {
+ struct stat st;
+ if (!lstat(name->buf, &st) && S_ISLNK(st.st_mode))
+ return 1;
+ }
+ } while (1);
+ return 0;
+}
+
+static int path_is_beyond_symlink(struct apply_state *state, const char *name_)
+{
+ int ret;
+ struct strbuf name = STRBUF_INIT;
+
+ assert(*name_ != '\0');
+ strbuf_addstr(&name, name_);
+ ret = path_is_beyond_symlink_1(state, &name);
+ strbuf_release(&name);
+
+ return ret;
+}
+
+static int check_unsafe_path(struct patch *patch)
+{
+ const char *old_name = NULL;
+ const char *new_name = NULL;
+ if (patch->is_delete)
+ old_name = patch->old_name;
+ else if (!patch->is_new && !patch->is_copy)
+ old_name = patch->old_name;
+ if (!patch->is_delete)
+ new_name = patch->new_name;
+
+ if (old_name && !verify_path(old_name))
+ return error(_("invalid path '%s'"), old_name);
+ if (new_name && !verify_path(new_name))
+ return error(_("invalid path '%s'"), new_name);
+ return 0;
+}
+
+/*
+ * Check and apply the patch in-core; leave the result in patch->result
+ * for the caller to write it out to the final destination.
+ */
+static int check_patch(struct apply_state *state, struct patch *patch)
+{
+ struct stat st;
+ const char *old_name = patch->old_name;
+ const char *new_name = patch->new_name;
+ const char *name = old_name ? old_name : new_name;
+ struct cache_entry *ce = NULL;
+ struct patch *tpatch;
+ int ok_if_exists;
+ int status;
+
+ patch->rejected = 1; /* we will drop this after we succeed */
+
+ status = check_preimage(state, patch, &ce, &st);
+ if (status)
+ return status;
+ old_name = patch->old_name;
+
+ /*
+ * A type-change diff is always split into a patch to delete
+ * old, immediately followed by a patch to create new (see
+ * diff.c::run_diff()); in such a case it is Ok that the entry
+ * to be deleted by the previous patch is still in the working
+ * tree and in the index.
+ *
+ * A patch to swap-rename between A and B would first rename A
+ * to B and then rename B to A. While applying the first one,
+ * the presence of B should not stop A from getting renamed to
+ * B; ask to_be_deleted() about the later rename. Removal of
+ * B and rename from A to B is handled the same way by asking
+ * was_deleted().
+ */
+ if ((tpatch = in_fn_table(state, new_name)) &&
+ (was_deleted(tpatch) || to_be_deleted(tpatch)))
+ ok_if_exists = 1;
+ else
+ ok_if_exists = 0;
+
+ if (new_name &&
+ ((0 < patch->is_new) || patch->is_rename || patch->is_copy)) {
+ int err = check_to_create(state, new_name, ok_if_exists);
+
+ if (err && state->threeway) {
+ patch->direct_to_threeway = 1;
+ } else switch (err) {
+ case 0:
+ break; /* happy */
+ case EXISTS_IN_INDEX:
+ return error(_("%s: already exists in index"), new_name);
+ break;
+ case EXISTS_IN_WORKTREE:
+ return error(_("%s: already exists in working directory"),
+ new_name);
+ default:
+ return err;
+ }
+
+ if (!patch->new_mode) {
+ if (0 < patch->is_new)
+ patch->new_mode = S_IFREG | 0644;
+ else
+ patch->new_mode = patch->old_mode;
+ }
+ }
+
+ if (new_name && old_name) {
+ int same = !strcmp(old_name, new_name);
+ if (!patch->new_mode)
+ patch->new_mode = patch->old_mode;
+ if ((patch->old_mode ^ patch->new_mode) & S_IFMT) {
+ if (same)
+ return error(_("new mode (%o) of %s does not "
+ "match old mode (%o)"),
+ patch->new_mode, new_name,
+ patch->old_mode);
+ else
+ return error(_("new mode (%o) of %s does not "
+ "match old mode (%o) of %s"),
+ patch->new_mode, new_name,
+ patch->old_mode, old_name);
+ }
+ }
+
+ if (!state->unsafe_paths && check_unsafe_path(patch))
+ return -128;
+
+ /*
+ * An attempt to read from or delete a path that is beyond a
+ * symbolic link will be prevented by load_patch_target() that
+ * is called at the beginning of apply_data() so we do not
+ * have to worry about a patch marked with "is_delete" bit
+ * here. We however need to make sure that the patch result
+ * is not deposited to a path that is beyond a symbolic link
+ * here.
+ */
+ if (!patch->is_delete && path_is_beyond_symlink(state, patch->new_name))
+ return error(_("affected file '%s' is beyond a symbolic link"),
+ patch->new_name);
+
+ if (apply_data(state, patch, &st, ce) < 0)
+ return error(_("%s: patch does not apply"), name);
+ patch->rejected = 0;
+ return 0;
+}
+
+static int check_patch_list(struct apply_state *state, struct patch *patch)
+{
+ int err = 0;
+
+ prepare_symlink_changes(state, patch);
+ prepare_fn_table(state, patch);
+ while (patch) {
+ int res;
+ if (state->apply_verbosity > verbosity_normal)
+ say_patch_name(stderr,
+ _("Checking patch %s..."), patch);
+ res = check_patch(state, patch);
+ if (res == -128)
+ return -128;
+ err |= res;
+ patch = patch->next;
+ }
+ return err;
+}
+
+static int read_apply_cache(struct apply_state *state)
+{
+ if (state->index_file)
+ return read_cache_from(state->index_file);
+ else
+ return read_cache();
+}
+
+/* This function tries to read the object name from the current index */
+static int get_current_oid(struct apply_state *state, const char *path,
+ struct object_id *oid)
+{
+ int pos;
+
+ if (read_apply_cache(state) < 0)
+ return -1;
+ pos = cache_name_pos(path, strlen(path));
+ if (pos < 0)
+ return -1;
+ oidcpy(oid, &active_cache[pos]->oid);
+ return 0;
+}
+
+static int preimage_oid_in_gitlink_patch(struct patch *p, struct object_id *oid)
+{
+ /*
+ * A usable gitlink patch has only one fragment (hunk) that looks like:
+ * @@ -1 +1 @@
+ * -Subproject commit <old sha1>
+ * +Subproject commit <new sha1>
+ * or
+ * @@ -1 +0,0 @@
+ * -Subproject commit <old sha1>
+ * for a removal patch.
+ */
+ struct fragment *hunk = p->fragments;
+ static const char heading[] = "-Subproject commit ";
+ char *preimage;
+
+ if (/* does the patch have only one hunk? */
+ hunk && !hunk->next &&
+ /* is its preimage one line? */
+ hunk->oldpos == 1 && hunk->oldlines == 1 &&
+ /* does preimage begin with the heading? */
+ (preimage = memchr(hunk->patch, '\n', hunk->size)) != NULL &&
+ starts_with(++preimage, heading) &&
+ /* does it record full SHA-1? */
+ !get_oid_hex(preimage + sizeof(heading) - 1, oid) &&
+ preimage[sizeof(heading) + GIT_SHA1_HEXSZ - 1] == '\n' &&
+ /* does the abbreviated name on the index line agree with it? */
+ starts_with(preimage + sizeof(heading) - 1, p->old_sha1_prefix))
+ return 0; /* it all looks fine */
+
+ /* we may have full object name on the index line */
+ return get_oid_hex(p->old_sha1_prefix, oid);
+}
+
+/* Build an index that contains the just the files needed for a 3way merge */
+static int build_fake_ancestor(struct apply_state *state, struct patch *list)
+{
+ struct patch *patch;
+ struct index_state result = { NULL };
+ static struct lock_file lock;
+ int res;
+
+ /* Once we start supporting the reverse patch, it may be
+ * worth showing the new sha1 prefix, but until then...
+ */
+ for (patch = list; patch; patch = patch->next) {
+ struct object_id oid;
+ struct cache_entry *ce;
+ const char *name;
+
+ name = patch->old_name ? patch->old_name : patch->new_name;
+ if (0 < patch->is_new)
+ continue;
+
+ if (S_ISGITLINK(patch->old_mode)) {
+ if (!preimage_oid_in_gitlink_patch(patch, &oid))
+ ; /* ok, the textual part looks sane */
+ else
+ return error(_("sha1 information is lacking or "
+ "useless for submodule %s"), name);
+ } else if (!get_sha1_blob(patch->old_sha1_prefix, oid.hash)) {
+ ; /* ok */
+ } else if (!patch->lines_added && !patch->lines_deleted) {
+ /* mode-only change: update the current */
+ if (get_current_oid(state, patch->old_name, &oid))
+ return error(_("mode change for %s, which is not "
+ "in current HEAD"), name);
+ } else
+ return error(_("sha1 information is lacking or useless "
+ "(%s)."), name);
+
+ ce = make_cache_entry(patch->old_mode, oid.hash, name, 0, 0);
+ if (!ce)
+ return error(_("make_cache_entry failed for path '%s'"),
+ name);
+ if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD)) {
+ free(ce);
+ return error(_("could not add %s to temporary index"),
+ name);
+ }
+ }
+
+ hold_lock_file_for_update(&lock, state->fake_ancestor, LOCK_DIE_ON_ERROR);
+ res = write_locked_index(&result, &lock, COMMIT_LOCK);
+ discard_index(&result);
+
+ if (res)
+ return error(_("could not write temporary index to %s"),
+ state->fake_ancestor);
+
+ return 0;
+ }
+
+ static void stat_patch_list(struct apply_state *state, struct patch *patch)
+ {
+ int files, adds, dels;
+
+ for (files = adds = dels = 0 ; patch ; patch = patch->next) {
+ files++;
+ adds += patch->lines_added;
+ dels += patch->lines_deleted;
+ show_stats(state, patch);
+ }
+
+ print_stat_summary(stdout, files, adds, dels);
+ }
+
+ static void numstat_patch_list(struct apply_state *state,
+ struct patch *patch)
+ {
+ for ( ; patch; patch = patch->next) {
+ const char *name;
+ name = patch->new_name ? patch->new_name : patch->old_name;
+ if (patch->is_binary)
+ printf("-\t-\t");
+ else
+ printf("%d\t%d\t", patch->lines_added, patch->lines_deleted);
+ write_name_quoted(name, stdout, state->line_termination);
+ }
+ }
+
+ static void show_file_mode_name(const char *newdelete, unsigned int mode, const char *name)
+ {
+ if (mode)
+ printf(" %s mode %06o %s\n", newdelete, mode, name);
+ else
+ printf(" %s %s\n", newdelete, name);
+ }
+
+ static void show_mode_change(struct patch *p, int show_name)
+ {
+ if (p->old_mode && p->new_mode && p->old_mode != p->new_mode) {
+ if (show_name)
+ printf(" mode change %06o => %06o %s\n",
+ p->old_mode, p->new_mode, p->new_name);
+ else
+ printf(" mode change %06o => %06o\n",
+ p->old_mode, p->new_mode);
+ }
+ }
+
+ static void show_rename_copy(struct patch *p)
+ {
+ const char *renamecopy = p->is_rename ? "rename" : "copy";
+ const char *old, *new;
+
+ /* Find common prefix */
+ old = p->old_name;
+ new = p->new_name;
+ while (1) {
+ const char *slash_old, *slash_new;
+ slash_old = strchr(old, '/');
+ slash_new = strchr(new, '/');
+ if (!slash_old ||
+ !slash_new ||
+ slash_old - old != slash_new - new ||
+ memcmp(old, new, slash_new - new))
+ break;
+ old = slash_old + 1;
+ new = slash_new + 1;
+ }
+ /* p->old_name thru old is the common prefix, and old and new
+ * through the end of names are renames
+ */
+ if (old != p->old_name)
+ printf(" %s %.*s{%s => %s} (%d%%)\n", renamecopy,
+ (int)(old - p->old_name), p->old_name,
+ old, new, p->score);
+ else
+ printf(" %s %s => %s (%d%%)\n", renamecopy,
+ p->old_name, p->new_name, p->score);
+ show_mode_change(p, 0);
+ }
+
+ static void summary_patch_list(struct patch *patch)
+ {
+ struct patch *p;
+
+ for (p = patch; p; p = p->next) {
+ if (p->is_new)
+ show_file_mode_name("create", p->new_mode, p->new_name);
+ else if (p->is_delete)
+ show_file_mode_name("delete", p->old_mode, p->old_name);
+ else {
+ if (p->is_rename || p->is_copy)
+ show_rename_copy(p);
+ else {
+ if (p->score) {
+ printf(" rewrite %s (%d%%)\n",
+ p->new_name, p->score);
+ show_mode_change(p, 0);
+ }
+ else
+ show_mode_change(p, 1);
+ }
+ }
+ }
+ }
+
+ static void patch_stats(struct apply_state *state, struct patch *patch)
+ {
+ int lines = patch->lines_added + patch->lines_deleted;
+
+ if (lines > state->max_change)
+ state->max_change = lines;
+ if (patch->old_name) {
+ int len = quote_c_style(patch->old_name, NULL, NULL, 0);
+ if (!len)
+ len = strlen(patch->old_name);
+ if (len > state->max_len)
+ state->max_len = len;
+ }
+ if (patch->new_name) {
+ int len = quote_c_style(patch->new_name, NULL, NULL, 0);
+ if (!len)
+ len = strlen(patch->new_name);
+ if (len > state->max_len)
+ state->max_len = len;
+ }
+ }
+
+ static int remove_file(struct apply_state *state, struct patch *patch, int rmdir_empty)
+ {
+ if (state->update_index) {
+ if (remove_file_from_cache(patch->old_name) < 0)
+ return error(_("unable to remove %s from index"), patch->old_name);
+ }
+ if (!state->cached) {
+ if (!remove_or_warn(patch->old_mode, patch->old_name) && rmdir_empty) {
+ remove_path(patch->old_name);
+ }
+ }
+ return 0;
+ }
+
+ static int add_index_file(struct apply_state *state,
+ const char *path,
+ unsigned mode,
+ void *buf,
+ unsigned long size)
+ {
+ struct stat st;
+ struct cache_entry *ce;
+ int namelen = strlen(path);
+ unsigned ce_size = cache_entry_size(namelen);
+
+ if (!state->update_index)
+ return 0;
+
+ ce = xcalloc(1, ce_size);
+ memcpy(ce->name, path, namelen);
+ ce->ce_mode = create_ce_mode(mode);
+ ce->ce_flags = create_ce_flags(0);
+ ce->ce_namelen = namelen;
+ if (S_ISGITLINK(mode)) {
+ const char *s;
+
+ if (!skip_prefix(buf, "Subproject commit ", &s) ||
+ get_oid_hex(s, &ce->oid)) {
+ free(ce);
+ return error(_("corrupt patch for submodule %s"), path);
+ }
+ } else {
+ if (!state->cached) {
+ if (lstat(path, &st) < 0) {
+ free(ce);
+ return error_errno(_("unable to stat newly "
+ "created file '%s'"),
+ path);
+ }
+ fill_stat_cache_info(ce, &st);
+ }
+ if (write_sha1_file(buf, size, blob_type, ce->oid.hash) < 0) {
+ free(ce);
+ return error(_("unable to create backing store "
+ "for newly created file %s"), path);
+ }
+ }
+ if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0) {
+ free(ce);
+ return error(_("unable to add cache entry for %s"), path);
+ }
+
+ return 0;
+}
+
+/*
+ * Returns:
+ * -1 if an unrecoverable error happened
+ * 0 if everything went well
+ * 1 if a recoverable error happened
+ */
+static int try_create_file(const char *path, unsigned int mode, const char *buf, unsigned long size)
+{
+ int fd, res;
+ struct strbuf nbuf = STRBUF_INIT;
+
+ if (S_ISGITLINK(mode)) {
+ struct stat st;
+ if (!lstat(path, &st) && S_ISDIR(st.st_mode))
+ return 0;
+ return !!mkdir(path, 0777);
+ }
+
+ if (has_symlinks && S_ISLNK(mode))
+ /* Although buf:size is counted string, it also is NUL
+ * terminated.
+ */
+ return !!symlink(buf, path);
+
+ fd = open(path, O_CREAT | O_EXCL | O_WRONLY, (mode & 0100) ? 0777 : 0666);
+ if (fd < 0)
+ return 1;
+
+ if (convert_to_working_tree(path, buf, size, &nbuf)) {
+ size = nbuf.len;
+ buf = nbuf.buf;
+ }
+
+ res = write_in_full(fd, buf, size) < 0;
+ if (res)
+ error_errno(_("failed to write to '%s'"), path);
+ strbuf_release(&nbuf);
+
+ if (close(fd) < 0 && !res)
+ return error_errno(_("closing file '%s'"), path);
+
+ return res ? -1 : 0;
+}
+
+/*
+ * We optimistically assume that the directories exist,
+ * which is true 99% of the time anyway. If they don't,
+ * we create them and try again.
+ *
+ * Returns:
+ * -1 on error
+ * 0 otherwise
+ */
+static int create_one_file(struct apply_state *state,
+ char *path,
+ unsigned mode,
+ const char *buf,
+ unsigned long size)
+{
+ int res;
+
+ if (state->cached)
+ return 0;
+
+ res = try_create_file(path, mode, buf, size);
+ if (res < 0)
+ return -1;
+ if (!res)
+ return 0;
+
+ if (errno == ENOENT) {
+ if (safe_create_leading_directories(path))
+ return 0;
+ res = try_create_file(path, mode, buf, size);
+ if (res < 0)
+ return -1;
+ if (!res)
+ return 0;
+ }
+
+ if (errno == EEXIST || errno == EACCES) {
+ /* We may be trying to create a file where a directory
+ * used to be.
+ */
+ struct stat st;
+ if (!lstat(path, &st) && (!S_ISDIR(st.st_mode) || !rmdir(path)))
+ errno = EEXIST;
+ }
+
+ if (errno == EEXIST) {
+ unsigned int nr = getpid();
+
+ for (;;) {
+ char newpath[PATH_MAX];
+ mksnpath(newpath, sizeof(newpath), "%s~%u", path, nr);
+ res = try_create_file(newpath, mode, buf, size);
+ if (res < 0)
+ return -1;
+ if (!res) {
+ if (!rename(newpath, path))
+ return 0;
+ unlink_or_warn(newpath);
+ break;
+ }
+ if (errno != EEXIST)
+ break;
+ ++nr;
+ }
+ }
+ return error_errno(_("unable to write file '%s' mode %o"),
+ path, mode);
+}
+
+static int add_conflicted_stages_file(struct apply_state *state,
+ struct patch *patch)
+{
+ int stage, namelen;
+ unsigned ce_size, mode;
+ struct cache_entry *ce;
+
+ if (!state->update_index)
+ return 0;
+ namelen = strlen(patch->new_name);
+ ce_size = cache_entry_size(namelen);
+ mode = patch->new_mode ? patch->new_mode : (S_IFREG | 0644);
+
+ remove_file_from_cache(patch->new_name);
+ for (stage = 1; stage < 4; stage++) {
+ if (is_null_oid(&patch->threeway_stage[stage - 1]))
+ continue;
+ ce = xcalloc(1, ce_size);
+ memcpy(ce->name, patch->new_name, namelen);
+ ce->ce_mode = create_ce_mode(mode);
+ ce->ce_flags = create_ce_flags(stage);
+ ce->ce_namelen = namelen;
+ oidcpy(&ce->oid, &patch->threeway_stage[stage - 1]);
+ if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0) {
+ free(ce);
+ return error(_("unable to add cache entry for %s"),
+ patch->new_name);
+ }
+ }
+
+ return 0;
+}
+
+static int create_file(struct apply_state *state, struct patch *patch)
+{
+ char *path = patch->new_name;
+ unsigned mode = patch->new_mode;
+ unsigned long size = patch->resultsize;
+ char *buf = patch->result;
+
+ if (!mode)
+ mode = S_IFREG | 0644;
+ if (create_one_file(state, path, mode, buf, size))
+ return -1;
+
+ if (patch->conflicted_threeway)
+ return add_conflicted_stages_file(state, patch);
+ else
+ return add_index_file(state, path, mode, buf, size);
+}
+
+/* phase zero is to remove, phase one is to create */
+static int write_out_one_result(struct apply_state *state,
+ struct patch *patch,
+ int phase)
+{
+ if (patch->is_delete > 0) {
+ if (phase == 0)
+ return remove_file(state, patch, 1);
+ return 0;
+ }
+ if (patch->is_new > 0 || patch->is_copy) {
+ if (phase == 1)
+ return create_file(state, patch);
+ return 0;
+ }
+ /*
+ * Rename or modification boils down to the same
+ * thing: remove the old, write the new
+ */
+ if (phase == 0)
+ return remove_file(state, patch, patch->is_rename);
+ if (phase == 1)
+ return create_file(state, patch);
+ return 0;
+}
+
+static int write_out_one_reject(struct apply_state *state, struct patch *patch)
+{
+ FILE *rej;
+ char namebuf[PATH_MAX];
+ struct fragment *frag;
+ int cnt = 0;
+ struct strbuf sb = STRBUF_INIT;
+
+ for (cnt = 0, frag = patch->fragments; frag; frag = frag->next) {
+ if (!frag->rejected)
+ continue;
+ cnt++;
+ }
+
+ if (!cnt) {
+ if (state->apply_verbosity > verbosity_normal)
+ say_patch_name(stderr,
+ _("Applied patch %s cleanly."), patch);
+ return 0;
+ }
+
+ /* This should not happen, because a removal patch that leaves
+ * contents are marked "rejected" at the patch level.
+ */
+ if (!patch->new_name)
+ die(_("internal error"));
+
+ /* Say this even without --verbose */
+ strbuf_addf(&sb, Q_("Applying patch %%s with %d reject...",
+ "Applying patch %%s with %d rejects...",
+ cnt),
+ cnt);
+ if (state->apply_verbosity > verbosity_silent)
+ say_patch_name(stderr, sb.buf, patch);
+ strbuf_release(&sb);
+
+ cnt = strlen(patch->new_name);
+ if (ARRAY_SIZE(namebuf) <= cnt + 5) {
+ cnt = ARRAY_SIZE(namebuf) - 5;
+ warning(_("truncating .rej filename to %.*s.rej"),
+ cnt - 1, patch->new_name);
+ }
+ memcpy(namebuf, patch->new_name, cnt);
+ memcpy(namebuf + cnt, ".rej", 5);
+
+ rej = fopen(namebuf, "w");
+ if (!rej)
+ return error_errno(_("cannot open %s"), namebuf);
+
+ /* Normal git tools never deal with .rej, so do not pretend
+ * this is a git patch by saying --git or giving extended
+ * headers. While at it, maybe please "kompare" that wants
+ * the trailing TAB and some garbage at the end of line ;-).
+ */
+ fprintf(rej, "diff a/%s b/%s\t(rejected hunks)\n",
+ patch->new_name, patch->new_name);
+ for (cnt = 1, frag = patch->fragments;
+ frag;
+ cnt++, frag = frag->next) {
+ if (!frag->rejected) {
+ if (state->apply_verbosity > verbosity_silent)
+ fprintf_ln(stderr, _("Hunk #%d applied cleanly."), cnt);
+ continue;
+ }
+ if (state->apply_verbosity > verbosity_silent)
+ fprintf_ln(stderr, _("Rejected hunk #%d."), cnt);
+ fprintf(rej, "%.*s", frag->size, frag->patch);
+ if (frag->patch[frag->size-1] != '\n')
+ fputc('\n', rej);
+ }
+ fclose(rej);
+ return -1;
+}
+
+/*
+ * Returns:
+ * -1 if an error happened
+ * 0 if the patch applied cleanly
+ * 1 if the patch did not apply cleanly
+ */
+static int write_out_results(struct apply_state *state, struct patch *list)
+{
+ int phase;
+ int errs = 0;
+ struct patch *l;
+ struct string_list cpath = STRING_LIST_INIT_DUP;
+
+ for (phase = 0; phase < 2; phase++) {
+ l = list;
+ while (l) {
+ if (l->rejected)
+ errs = 1;
+ else {
+ if (write_out_one_result(state, l, phase)) {
+ string_list_clear(&cpath, 0);
+ return -1;
+ }
+ if (phase == 1) {
+ if (write_out_one_reject(state, l))
+ errs = 1;
+ if (l->conflicted_threeway) {
+ string_list_append(&cpath, l->new_name);
+ errs = 1;
+ }
+ }
+ }
+ l = l->next;
+ }
+ }
+
+ if (cpath.nr) {
+ struct string_list_item *item;
+
+ string_list_sort(&cpath);
+ if (state->apply_verbosity > verbosity_silent) {
+ for_each_string_list_item(item, &cpath)
+ fprintf(stderr, "U %s\n", item->string);
+ }
+ string_list_clear(&cpath, 0);
+
+ rerere(0);
+ }
+
+ return errs;
+}
+
+/*
+ * Try to apply a patch.
+ *
+ * Returns:
+ * -128 if a bad error happened (like patch unreadable)
+ * -1 if patch did not apply and user cannot deal with it
+ * 0 if the patch applied
+ * 1 if the patch did not apply but user might fix it
+ */
+static int apply_patch(struct apply_state *state,
+ int fd,
+ const char *filename,
+ int options)
+{
+ size_t offset;
+ struct strbuf buf = STRBUF_INIT; /* owns the patch text */
+ struct patch *list = NULL, **listp = &list;
+ int skipped_patch = 0;
+ int res = 0;
+
+ state->patch_input_file = filename;
+ if (read_patch_file(&buf, fd) < 0)
+ return -128;
+ offset = 0;
+ while (offset < buf.len) {
+ struct patch *patch;
+ int nr;
+
+ patch = xcalloc(1, sizeof(*patch));
+ patch->inaccurate_eof = !!(options & APPLY_OPT_INACCURATE_EOF);
+ patch->recount = !!(options & APPLY_OPT_RECOUNT);
+ nr = parse_chunk(state, buf.buf + offset, buf.len - offset, patch);
+ if (nr < 0) {
+ free_patch(patch);
+ if (nr == -128) {
+ res = -128;
+ goto end;
+ }
+ break;
+ }
+ if (state->apply_in_reverse)
+ reverse_patches(patch);
+ if (use_patch(state, patch)) {
+ patch_stats(state, patch);
+ *listp = patch;
+ listp = &patch->next;
+ }
+ else {
+ if (state->apply_verbosity > verbosity_normal)
+ say_patch_name(stderr, _("Skipped patch '%s'."), patch);
+ free_patch(patch);
+ skipped_patch++;
+ }
+ offset += nr;
+ }
+
+ if (!list && !skipped_patch) {
+ error(_("unrecognized input"));
+ res = -128;
+ goto end;
+ }
+
+ if (state->whitespace_error && (state->ws_error_action == die_on_ws_error))
+ state->apply = 0;
+
+ state->update_index = state->check_index && state->apply;
+ if (state->update_index && state->newfd < 0) {
+ if (state->index_file)
+ state->newfd = hold_lock_file_for_update(state->lock_file,
+ state->index_file,
+ LOCK_DIE_ON_ERROR);
+ else
+ state->newfd = hold_locked_index(state->lock_file, 1);
+ }
+
+ if (state->check_index && read_apply_cache(state) < 0) {
+ error(_("unable to read index file"));
+ res = -128;
+ goto end;
+ }
+
+ if (state->check || state->apply) {
+ int r = check_patch_list(state, list);
+ if (r == -128) {
+ res = -128;
+ goto end;
+ }
+ if (r < 0 && !state->apply_with_reject) {
+ res = -1;
+ goto end;
+ }
+ }
+
+ if (state->apply) {
+ int write_res = write_out_results(state, list);
+ if (write_res < 0) {
+ res = -128;
+ goto end;
+ }
+ if (write_res > 0) {
+ /* with --3way, we still need to write the index out */
+ res = state->apply_with_reject ? -1 : 1;
+ goto end;
+ }
+ }
+
+ if (state->fake_ancestor &&
+ build_fake_ancestor(state, list)) {
+ res = -128;
+ goto end;
+ }
+
+ if (state->diffstat && state->apply_verbosity > verbosity_silent)
+ stat_patch_list(state, list);
+
+ if (state->numstat && state->apply_verbosity > verbosity_silent)
+ numstat_patch_list(state, list);
+
+ if (state->summary && state->apply_verbosity > verbosity_silent)
+ summary_patch_list(list);
+
+end:
+ free_patch_list(list);
+ strbuf_release(&buf);
+ string_list_clear(&state->fn_table, 0);
+ return res;
+}
+
+static int apply_option_parse_exclude(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct apply_state *state = opt->value;
+ add_name_limit(state, arg, 1);
+ return 0;
+}
+
+static int apply_option_parse_include(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct apply_state *state = opt->value;
+ add_name_limit(state, arg, 0);
+ state->has_include = 1;
+ return 0;
+}
+
+static int apply_option_parse_p(const struct option *opt,
+ const char *arg,
+ int unset)
+{
+ struct apply_state *state = opt->value;
+ state->p_value = atoi(arg);
+ state->p_value_known = 1;
+ return 0;
+}
+
+static int apply_option_parse_space_change(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct apply_state *state = opt->value;
+ if (unset)
+ state->ws_ignore_action = ignore_ws_none;
+ else
+ state->ws_ignore_action = ignore_ws_change;
+ return 0;
+}
+
+static int apply_option_parse_whitespace(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct apply_state *state = opt->value;
+ state->whitespace_option = arg;
+ if (parse_whitespace_option(state, arg))
+ exit(1);
+ return 0;
+}
+
+static int apply_option_parse_directory(const struct option *opt,
+ const char *arg, int unset)
+{
+ struct apply_state *state = opt->value;
+ strbuf_reset(&state->root);
+ strbuf_addstr(&state->root, arg);
+ strbuf_complete(&state->root, '/');
+ return 0;
+}
+
+int apply_all_patches(struct apply_state *state,
+ int argc,
+ const char **argv,
+ int options)
+{
+ int i;
+ int res;
+ int errs = 0;
+ int read_stdin = 1;
+
+ for (i = 0; i < argc; i++) {
+ const char *arg = argv[i];
+ int fd;
+
+ if (!strcmp(arg, "-")) {
+ res = apply_patch(state, 0, "<stdin>", options);
+ if (res < 0)
+ goto end;
+ errs |= res;
+ read_stdin = 0;
+ continue;
+ } else if (0 < state->prefix_length)
+ arg = prefix_filename(state->prefix,
+ state->prefix_length,
+ arg);
+
+ fd = open(arg, O_RDONLY);
+ if (fd < 0) {
+ error(_("can't open patch '%s': %s"), arg, strerror(errno));
+ res = -128;
+ goto end;
+ }
+ read_stdin = 0;
+ set_default_whitespace_mode(state);
+ res = apply_patch(state, fd, arg, options);
+ close(fd);
+ if (res < 0)
+ goto end;
+ errs |= res;
+ }
+ set_default_whitespace_mode(state);
+ if (read_stdin) {
+ res = apply_patch(state, 0, "<stdin>", options);
+ if (res < 0)
+ goto end;
+ errs |= res;
+ }
+
+ if (state->whitespace_error) {
+ if (state->squelch_whitespace_errors &&
+ state->squelch_whitespace_errors < state->whitespace_error) {
+ int squelched =
+ state->whitespace_error - state->squelch_whitespace_errors;
+ warning(Q_("squelched %d whitespace error",
+ "squelched %d whitespace errors",
+ squelched),
+ squelched);
+ }
+ if (state->ws_error_action == die_on_ws_error) {
+ error(Q_("%d line adds whitespace errors.",
+ "%d lines add whitespace errors.",
+ state->whitespace_error),
+ state->whitespace_error);
+ res = -128;
+ goto end;
+ }
+ if (state->applied_after_fixing_ws && state->apply)
+ warning(Q_("%d line applied after"
+ " fixing whitespace errors.",
+ "%d lines applied after"
+ " fixing whitespace errors.",
+ state->applied_after_fixing_ws),
+ state->applied_after_fixing_ws);
+ else if (state->whitespace_error)
+ warning(Q_("%d line adds whitespace errors.",
+ "%d lines add whitespace errors.",
+ state->whitespace_error),
+ state->whitespace_error);
+ }
+
+ if (state->update_index) {
+ res = write_locked_index(&the_index, state->lock_file, COMMIT_LOCK);
+ if (res) {
+ error(_("Unable to write new index file"));
+ res = -128;
+ goto end;
+ }
+ state->newfd = -1;
+ }
+
+ res = !!errs;
+
+end:
+ if (state->newfd >= 0) {
+ rollback_lock_file(state->lock_file);
+ state->newfd = -1;
+ }
+
+ if (state->apply_verbosity <= verbosity_silent) {
+ set_error_routine(state->saved_error_routine);
+ set_warn_routine(state->saved_warn_routine);
+ }
+
+ if (res > -1)
+ return res;
+ return (res == -1 ? 1 : 128);
+}
+
+int apply_parse_options(int argc, const char **argv,
+ struct apply_state *state,
+ int *force_apply, int *options,
+ const char * const *apply_usage)
+{
+ struct option builtin_apply_options[] = {
+ { OPTION_CALLBACK, 0, "exclude", state, N_("path"),
+ N_("don't apply changes matching the given path"),
+ 0, apply_option_parse_exclude },
+ { OPTION_CALLBACK, 0, "include", state, N_("path"),
+ N_("apply changes matching the given path"),
+ 0, apply_option_parse_include },
+ { OPTION_CALLBACK, 'p', NULL, state, N_("num"),
+ N_("remove <num> leading slashes from traditional diff paths"),
+ 0, apply_option_parse_p },
+ OPT_BOOL(0, "no-add", &state->no_add,
+ N_("ignore additions made by the patch")),
+ OPT_BOOL(0, "stat", &state->diffstat,
+ N_("instead of applying the patch, output diffstat for the input")),
+ OPT_NOOP_NOARG(0, "allow-binary-replacement"),
+ OPT_NOOP_NOARG(0, "binary"),
+ OPT_BOOL(0, "numstat", &state->numstat,
+ N_("show number of added and deleted lines in decimal notation")),
+ OPT_BOOL(0, "summary", &state->summary,
+ N_("instead of applying the patch, output a summary for the input")),
+ OPT_BOOL(0, "check", &state->check,
+ N_("instead of applying the patch, see if the patch is applicable")),
+ OPT_BOOL(0, "index", &state->check_index,
+ N_("make sure the patch is applicable to the current index")),
+ OPT_BOOL(0, "cached", &state->cached,
+ N_("apply a patch without touching the working tree")),
+ OPT_BOOL(0, "unsafe-paths", &state->unsafe_paths,
+ N_("accept a patch that touches outside the working area")),
+ OPT_BOOL(0, "apply", force_apply,
+ N_("also apply the patch (use with --stat/--summary/--check)")),
+ OPT_BOOL('3', "3way", &state->threeway,
+ N_( "attempt three-way merge if a patch does not apply")),
+ OPT_FILENAME(0, "build-fake-ancestor", &state->fake_ancestor,
+ N_("build a temporary index based on embedded index information")),
+ /* Think twice before adding "--nul" synonym to this */
+ OPT_SET_INT('z', NULL, &state->line_termination,
+ N_("paths are separated with NUL character"), '\0'),
+ OPT_INTEGER('C', NULL, &state->p_context,
+ N_("ensure at least <n> lines of context match")),
+ { OPTION_CALLBACK, 0, "whitespace", state, N_("action"),
+ N_("detect new or modified lines that have whitespace errors"),
+ 0, apply_option_parse_whitespace },
+ { OPTION_CALLBACK, 0, "ignore-space-change", state, NULL,
+ N_("ignore changes in whitespace when finding context"),
+ PARSE_OPT_NOARG, apply_option_parse_space_change },
+ { OPTION_CALLBACK, 0, "ignore-whitespace", state, NULL,
+ N_("ignore changes in whitespace when finding context"),
+ PARSE_OPT_NOARG, apply_option_parse_space_change },
+ OPT_BOOL('R', "reverse", &state->apply_in_reverse,
+ N_("apply the patch in reverse")),
+ OPT_BOOL(0, "unidiff-zero", &state->unidiff_zero,
+ N_("don't expect at least one line of context")),
+ OPT_BOOL(0, "reject", &state->apply_with_reject,
+ N_("leave the rejected hunks in corresponding *.rej files")),
+ OPT_BOOL(0, "allow-overlap", &state->allow_overlap,
+ N_("allow overlapping hunks")),
+ OPT__VERBOSE(&state->apply_verbosity, N_("be verbose")),
+ OPT_BIT(0, "inaccurate-eof", options,
+ N_("tolerate incorrectly detected missing new-line at the end of file"),
+ APPLY_OPT_INACCURATE_EOF),
+ OPT_BIT(0, "recount", options,
+ N_("do not trust the line counts in the hunk headers"),
+ APPLY_OPT_RECOUNT),
+ { OPTION_CALLBACK, 0, "directory", state, N_("root"),
+ N_("prepend <root> to all filenames"),
+ 0, apply_option_parse_directory },
+ OPT_END()
+ };
+
+ return parse_options(argc, argv, state->prefix, builtin_apply_options, apply_usage, 0);
+}
diff --git a/apply.h b/apply.h
new file mode 100644
index 0000000..b3d6783
--- /dev/null
+++ b/apply.h
@@ -0,0 +1,137 @@
+#ifndef APPLY_H
+#define APPLY_H
+
+enum apply_ws_error_action {
+ nowarn_ws_error,
+ warn_on_ws_error,
+ die_on_ws_error,
+ correct_ws_error
+};
+
+enum apply_ws_ignore {
+ ignore_ws_none,
+ ignore_ws_change
+};
+
+enum apply_verbosity {
+ verbosity_silent = -1,
+ verbosity_normal = 0,
+ verbosity_verbose = 1
+};
+
+/*
+ * We need to keep track of how symlinks in the preimage are
+ * manipulated by the patches. A patch to add a/b/c where a/b
+ * is a symlink should not be allowed to affect the directory
+ * the symlink points at, but if the same patch removes a/b,
+ * it is perfectly fine, as the patch removes a/b to make room
+ * to create a directory a/b so that a/b/c can be created.
+ *
+ * See also "struct string_list symlink_changes" in "struct
+ * apply_state".
+ */
+#define APPLY_SYMLINK_GOES_AWAY 01
+#define APPLY_SYMLINK_IN_RESULT 02
+
+struct apply_state {
+ const char *prefix;
+ int prefix_length;
+
+ /* These are lock_file related */
+ struct lock_file *lock_file;
+ int newfd;
+
+ /* These control what gets looked at and modified */
+ int apply; /* this is not a dry-run */
+ int cached; /* apply to the index only */
+ int check; /* preimage must match working tree, don't actually apply */
+ int check_index; /* preimage must match the indexed version */
+ int update_index; /* check_index && apply */
+
+ /* These control cosmetic aspect of the output */
+ int diffstat; /* just show a diffstat, and don't actually apply */
+ int numstat; /* just show a numeric diffstat, and don't actually apply */
+ int summary; /* just report creation, deletion, etc, and don't actually apply */
+
+ /* These boolean parameters control how the apply is done */
+ int allow_overlap;
+ int apply_in_reverse;
+ int apply_with_reject;
+ int no_add;
+ int threeway;
+ int unidiff_zero;
+ int unsafe_paths;
+
+ /* Other non boolean parameters */
+ const char *index_file;
+ enum apply_verbosity apply_verbosity;
+ const char *fake_ancestor;
+ const char *patch_input_file;
+ int line_termination;
+ struct strbuf root;
+ int p_value;
+ int p_value_known;
+ unsigned int p_context;
+
+ /* Exclude and include path parameters */
+ struct string_list limit_by_name;
+ int has_include;
+
+ /* Various "current state" */
+ int linenr; /* current line number */
+ struct string_list symlink_changes; /* we have to track symlinks */
+
+ /*
+ * For "diff-stat" like behaviour, we keep track of the biggest change
+ * we've seen, and the longest filename. That allows us to do simple
+ * scaling.
+ */
+ int max_change;
+ int max_len;
+
+ /*
+ * Records filenames that have been touched, in order to handle
+ * the case where more than one patches touch the same file.
+ */
+ struct string_list fn_table;
+
+ /*
+ * This is to save reporting routines before using
+ * set_error_routine() or set_warn_routine() to install muting
+ * routines when in verbosity_silent mode.
+ */
+ void (*saved_error_routine)(const char *err, va_list params);
+ void (*saved_warn_routine)(const char *warn, va_list params);
+
+ /* These control whitespace errors */
+ enum apply_ws_error_action ws_error_action;
+ enum apply_ws_ignore ws_ignore_action;
+ const char *whitespace_option;
+ int whitespace_error;
+ int squelch_whitespace_errors;
+ int applied_after_fixing_ws;
+};
+
+extern int apply_parse_options(int argc, const char **argv,
+ struct apply_state *state,
+ int *force_apply, int *options,
+ const char * const *apply_usage);
+extern int init_apply_state(struct apply_state *state,
+ const char *prefix,
+ struct lock_file *lock_file);
+extern void clear_apply_state(struct apply_state *state);
+extern int check_apply_state(struct apply_state *state, int force_apply);
+
+/*
+ * Some aspects of the apply behavior are controlled by the following
+ * bits in the "options" parameter passed to apply_all_patches().
+ */
+#define APPLY_OPT_INACCURATE_EOF (1<<0) /* accept inaccurate eof */
+#define APPLY_OPT_RECOUNT (1<<1) /* accept inaccurate line count */
+
+extern int apply_all_patches(struct apply_state *state,
+ int argc,
+ const char **argv,
+ int options);
+
+#endif
diff --git a/archive-zip.c b/archive-zip.c
index 9db4735..b429a8d 100644
--- a/archive-zip.c
+++ b/archive-zip.c
@@ -554,11 +554,18 @@ static void dos_time(time_t *time, int *dos_date, int *dos_time)
*dos_time = t->tm_sec / 2 + t->tm_min * 32 + t->tm_hour * 2048;
}
+static int archive_zip_config(const char *var, const char *value, void *data)
+{
+ return userdiff_config(var, value);
+}
+
static int write_zip_archive(const struct archiver *ar,
struct archiver_args *args)
{
int err;
+ git_config(archive_zip_config, NULL);
+
dos_time(&args->time, &zip_date, &zip_time);
zip_dir = xmalloc(ZIP_DIRECTORY_MIN_SIZE);
diff --git a/archive.c b/archive.c
index dde1ab4..01751e5 100644
--- a/archive.c
+++ b/archive.c
@@ -504,15 +504,11 @@ static int parse_archive_args(int argc, const char **argv,
}
int write_archive(int argc, const char **argv, const char *prefix,
- int setup_prefix, const char *name_hint, int remote)
+ const char *name_hint, int remote)
{
- int nongit = 0;
const struct archiver *ar = NULL;
struct archiver_args args;
- if (setup_prefix && prefix == NULL)
- prefix = setup_git_directory_gently(&nongit);
-
git_config_get_bool("uploadarchive.allowunreachable", &remote_allow_unreachable);
git_config(git_default_config, NULL);
@@ -520,7 +516,7 @@ int write_archive(int argc, const char **argv, const char *prefix,
init_zip_archiver();
argc = parse_archive_args(argc, argv, &ar, &args, name_hint, remote);
- if (nongit) {
+ if (!startup_info->have_repository) {
/*
* We know this will die() with an error, so we could just
* die ourselves; but its error message will be more specific
diff --git a/archive.h b/archive.h
index 4a791e1..415e015 100644
--- a/archive.h
+++ b/archive.h
@@ -36,7 +36,7 @@ typedef int (*write_archive_entry_fn_t)(struct archiver_args *args,
unsigned int mode);
extern int write_archive_entries(struct archiver_args *args, write_archive_entry_fn_t write_entry);
-extern int write_archive(int argc, const char **argv, const char *prefix, int setup_prefix, const char *name_hint, int remote);
+extern int write_archive(int argc, const char **argv, const char *prefix, const char *name_hint, int remote);
const char *archive_format_from_filename(const char *filename);
extern void *sha1_file_to_archive(const struct archiver_args *args,
diff --git a/attr.c b/attr.c
index eec5d7d..1fcf042 100644
--- a/attr.c
+++ b/attr.c
@@ -531,7 +531,11 @@ static void bootstrap_attr_stack(void)
debug_push(elem);
}
- elem = read_attr_from_file(git_path_info_attributes(), 1);
+ if (startup_info->have_repository)
+ elem = read_attr_from_file(git_path_info_attributes(), 1);
+ else
+ elem = NULL;
+
if (!elem)
elem = xcalloc(1, sizeof(*elem));
elem->origin = NULL;
diff --git a/bisect.c b/bisect.c
index 6f512c2..21bc6da 100644
--- a/bisect.c
+++ b/bisect.c
@@ -215,7 +215,7 @@ static struct commit_list *best_bisection_sorted(struct commit_list *list, int n
array[cnt].distance = distance;
cnt++;
}
- qsort(array, cnt, sizeof(*array), compare_commit_dist);
+ QSORT(array, cnt, compare_commit_dist);
for (p = list, i = 0; i < cnt; i++) {
char buf[100]; /* enough for dist=%d */
struct object *obj = &(array[i].commit->object);
diff --git a/branch.c b/branch.c
index 0d459b3..c431cbf 100644
--- a/branch.c
+++ b/branch.c
@@ -348,7 +348,7 @@ void die_if_checked_out(const char *branch, int ignore_current_worktree)
int replace_each_worktree_head_symref(const char *oldref, const char *newref)
{
int ret = 0;
- struct worktree **worktrees = get_worktrees();
+ struct worktree **worktrees = get_worktrees(0);
int i;
for (i = 0; worktrees[i]; i++) {
diff --git a/builtin.h b/builtin.h
index 6b95006..b9122bc 100644
--- a/builtin.h
+++ b/builtin.h
@@ -25,7 +25,7 @@ struct fmt_merge_msg_opts {
extern int fmt_merge_msg(struct strbuf *in, struct strbuf *out,
struct fmt_merge_msg_opts *);
-extern int textconv_object(const char *path, unsigned mode, const unsigned char *sha1, int sha1_valid, char **buf, unsigned long *buf_size);
+extern int textconv_object(const char *path, unsigned mode, const struct object_id *oid, int oid_valid, char **buf, unsigned long *buf_size);
extern int is_builtin(const char *s);
diff --git a/builtin/am.c b/builtin/am.c
index 9daeb27..826f18b 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -28,6 +28,7 @@
#include "rerere.h"
#include "prompt.h"
#include "mailinfo.h"
+#include "apply.h"
#include "string-list.h"
/**
@@ -109,7 +110,7 @@ struct am_state {
size_t msg_len;
/* when --rebasing, records the original commit the patch came from */
- unsigned char orig_commit[GIT_SHA1_RAWSZ];
+ struct object_id orig_commit;
/* number of digits in patch filename */
int prec;
@@ -415,8 +416,8 @@ static void am_load(struct am_state *state)
read_commit_msg(state);
if (read_state_file(&sb, state, "original-commit", 1) < 0)
- hashclr(state->orig_commit);
- else if (get_sha1_hex(sb.buf, state->orig_commit) < 0)
+ oidclr(&state->orig_commit);
+ else if (get_oid_hex(sb.buf, &state->orig_commit) < 0)
die(_("could not parse %s"), am_path(state, "original-commit"));
read_state_file(&sb, state, "threeway", 1);
@@ -542,14 +543,14 @@ static int copy_notes_for_rebase(const struct am_state *state)
fp = xfopen(am_path(state, "rewritten"), "r");
while (!strbuf_getline_lf(&sb, fp)) {
- unsigned char from_obj[GIT_SHA1_RAWSZ], to_obj[GIT_SHA1_RAWSZ];
+ struct object_id from_obj, to_obj;
if (sb.len != GIT_SHA1_HEXSZ * 2 + 1) {
ret = error(invalid_line, sb.buf);
goto finish;
}
- if (get_sha1_hex(sb.buf, from_obj)) {
+ if (get_oid_hex(sb.buf, &from_obj)) {
ret = error(invalid_line, sb.buf);
goto finish;
}
@@ -559,14 +560,14 @@ static int copy_notes_for_rebase(const struct am_state *state)
goto finish;
}
- if (get_sha1_hex(sb.buf + GIT_SHA1_HEXSZ + 1, to_obj)) {
+ if (get_oid_hex(sb.buf + GIT_SHA1_HEXSZ + 1, &to_obj)) {
ret = error(invalid_line, sb.buf);
goto finish;
}
- if (copy_note_for_rewrite(c, from_obj, to_obj))
+ if (copy_note_for_rewrite(c, from_obj.hash, to_obj.hash))
ret = error(_("Failed to copy notes from '%s' to '%s'"),
- sha1_to_hex(from_obj), sha1_to_hex(to_obj));
+ oid_to_hex(&from_obj), oid_to_hex(&to_obj));
}
finish:
@@ -972,7 +973,7 @@ static int split_mail(struct am_state *state, enum patch_format patch_format,
static void am_setup(struct am_state *state, enum patch_format patch_format,
const char **paths, int keep_cr)
{
- unsigned char curr_head[GIT_SHA1_RAWSZ];
+ struct object_id curr_head;
const char *str;
struct strbuf sb = STRBUF_INIT;
@@ -1040,10 +1041,10 @@ static void am_setup(struct am_state *state, enum patch_format patch_format,
else
write_state_text(state, "applying", "");
- if (!get_sha1("HEAD", curr_head)) {
- write_state_text(state, "abort-safety", sha1_to_hex(curr_head));
+ if (!get_oid("HEAD", &curr_head)) {
+ write_state_text(state, "abort-safety", oid_to_hex(&curr_head));
if (!state->rebasing)
- update_ref("am", "ORIG_HEAD", curr_head, NULL, 0,
+ update_ref_oid("am", "ORIG_HEAD", &curr_head, NULL, 0,
UPDATE_REFS_DIE_ON_ERR);
} else {
write_state_text(state, "abort-safety", "");
@@ -1068,7 +1069,7 @@ static void am_setup(struct am_state *state, enum patch_format patch_format,
*/
static void am_next(struct am_state *state)
{
- unsigned char head[GIT_SHA1_RAWSZ];
+ struct object_id head;
free(state->author_name);
state->author_name = NULL;
@@ -1086,11 +1087,11 @@ static void am_next(struct am_state *state)
unlink(am_path(state, "author-script"));
unlink(am_path(state, "final-commit"));
- hashclr(state->orig_commit);
+ oidclr(&state->orig_commit);
unlink(am_path(state, "original-commit"));
- if (!get_sha1("HEAD", head))
- write_state_text(state, "abort-safety", sha1_to_hex(head));
+ if (!get_oid("HEAD", &head))
+ write_state_text(state, "abort-safety", oid_to_hex(&head));
else
write_state_text(state, "abort-safety", "");
@@ -1132,17 +1133,17 @@ static void refresh_and_write_cache(void)
*/
static int index_has_changes(struct strbuf *sb)
{
- unsigned char head[GIT_SHA1_RAWSZ];
+ struct object_id head;
int i;
- if (!get_sha1_tree("HEAD", head)) {
+ if (!get_sha1_tree("HEAD", head.hash)) {
struct diff_options opt;
diff_setup(&opt);
DIFF_OPT_SET(&opt, EXIT_WITH_STATUS);
if (!sb)
DIFF_OPT_SET(&opt, QUICK);
- do_diff_cache(head, &opt);
+ do_diff_cache(head.hash, &opt);
diffcore_std(&opt);
for (i = 0; sb && i < diff_queued_diff.nr; i++) {
if (i)
@@ -1349,7 +1350,7 @@ finish:
* Sets commit_id to the commit hash where the mail was generated from.
* Returns 0 on success, -1 on failure.
*/
-static int get_mail_commit_sha1(unsigned char *commit_id, const char *mail)
+static int get_mail_commit_oid(struct object_id *commit_id, const char *mail)
{
struct strbuf sb = STRBUF_INIT;
FILE *fp = xfopen(mail, "r");
@@ -1361,7 +1362,7 @@ static int get_mail_commit_sha1(unsigned char *commit_id, const char *mail)
if (!skip_prefix(sb.buf, "From ", &x))
return -1;
- if (get_sha1_hex(x, commit_id) < 0)
+ if (get_oid_hex(x, commit_id) < 0)
return -1;
strbuf_release(&sb);
@@ -1451,12 +1452,12 @@ static void write_commit_patch(const struct am_state *state, struct commit *comm
static void write_index_patch(const struct am_state *state)
{
struct tree *tree;
- unsigned char head[GIT_SHA1_RAWSZ];
+ struct object_id head;
struct rev_info rev_info;
FILE *fp;
- if (!get_sha1_tree("HEAD", head))
- tree = lookup_tree(head);
+ if (!get_sha1_tree("HEAD", head.hash))
+ tree = lookup_tree(head.hash);
else
tree = lookup_tree(EMPTY_TREE_SHA1_BIN);
@@ -1486,19 +1487,19 @@ static void write_index_patch(const struct am_state *state)
static int parse_mail_rebase(struct am_state *state, const char *mail)
{
struct commit *commit;
- unsigned char commit_sha1[GIT_SHA1_RAWSZ];
+ struct object_id commit_oid;
- if (get_mail_commit_sha1(commit_sha1, mail) < 0)
+ if (get_mail_commit_oid(&commit_oid, mail) < 0)
die(_("could not parse %s"), mail);
- commit = lookup_commit_or_die(commit_sha1, mail);
+ commit = lookup_commit_or_die(commit_oid.hash, mail);
get_commit_info(state, commit);
write_commit_patch(state, commit);
- hashcpy(state->orig_commit, commit_sha1);
- write_state_text(state, "original-commit", sha1_to_hex(commit_sha1));
+ oidcpy(&state->orig_commit, &commit_oid);
+ write_state_text(state, "original-commit", oid_to_hex(&commit_oid));
return 0;
}
@@ -1509,39 +1510,59 @@ static int parse_mail_rebase(struct am_state *state, const char *mail)
*/
static int run_apply(const struct am_state *state, const char *index_file)
{
- struct child_process cp = CHILD_PROCESS_INIT;
-
- cp.git_cmd = 1;
-
- if (index_file)
- argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s", index_file);
+ struct argv_array apply_paths = ARGV_ARRAY_INIT;
+ struct argv_array apply_opts = ARGV_ARRAY_INIT;
+ struct apply_state apply_state;
+ int res, opts_left;
+ static struct lock_file lock_file;
+ int force_apply = 0;
+ int options = 0;
+
+ if (init_apply_state(&apply_state, NULL, &lock_file))
+ die("BUG: init_apply_state() failed");
+
+ argv_array_push(&apply_opts, "apply");
+ argv_array_pushv(&apply_opts, state->git_apply_opts.argv);
+
+ opts_left = apply_parse_options(apply_opts.argc, apply_opts.argv,
+ &apply_state, &force_apply, &options,
+ NULL);
+
+ if (opts_left != 0)
+ die("unknown option passed through to git apply");
+
+ if (index_file) {
+ apply_state.index_file = index_file;
+ apply_state.cached = 1;
+ } else
+ apply_state.check_index = 1;
/*
* If we are allowed to fall back on 3-way merge, don't give false
* errors during the initial attempt.
*/
- if (state->threeway && !index_file) {
- cp.no_stdout = 1;
- cp.no_stderr = 1;
- }
+ if (state->threeway && !index_file)
+ apply_state.apply_verbosity = verbosity_silent;
- argv_array_push(&cp.args, "apply");
+ if (check_apply_state(&apply_state, force_apply))
+ die("BUG: check_apply_state() failed");
- argv_array_pushv(&cp.args, state->git_apply_opts.argv);
+ argv_array_push(&apply_paths, am_path(state, "patch"));
- if (index_file)
- argv_array_push(&cp.args, "--cached");
- else
- argv_array_push(&cp.args, "--index");
+ res = apply_all_patches(&apply_state, apply_paths.argc, apply_paths.argv, options);
- argv_array_push(&cp.args, am_path(state, "patch"));
+ argv_array_clear(&apply_paths);
+ argv_array_clear(&apply_opts);
+ clear_apply_state(&apply_state);
- if (run_command(&cp))
- return -1;
+ if (res)
+ return res;
- /* Reload index as git-apply will have modified it. */
- discard_cache();
- read_cache_from(index_file ? index_file : get_index_file());
+ if (index_file) {
+ /* Reload index as apply_all_patches() will have modified it. */
+ discard_cache();
+ read_cache_from(index_file);
+ }
return 0;
}
@@ -1652,9 +1673,8 @@ static int fall_back_threeway(const struct am_state *state, const char *index_pa
*/
static void do_commit(const struct am_state *state)
{
- unsigned char tree[GIT_SHA1_RAWSZ], parent[GIT_SHA1_RAWSZ],
- commit[GIT_SHA1_RAWSZ];
- unsigned char *ptr;
+ struct object_id tree, parent, commit;
+ const struct object_id *old_oid;
struct commit_list *parents = NULL;
const char *reflog_msg, *author;
struct strbuf sb = STRBUF_INIT;
@@ -1662,14 +1682,14 @@ static void do_commit(const struct am_state *state)
if (run_hook_le(NULL, "pre-applypatch", NULL))
exit(1);
- if (write_cache_as_tree(tree, 0, NULL))
+ if (write_cache_as_tree(tree.hash, 0, NULL))
die(_("git write-tree failed to write a tree"));
- if (!get_sha1_commit("HEAD", parent)) {
- ptr = parent;
- commit_list_insert(lookup_commit(parent), &parents);
+ if (!get_sha1_commit("HEAD", parent.hash)) {
+ old_oid = &parent;
+ commit_list_insert(lookup_commit(parent.hash), &parents);
} else {
- ptr = NULL;
+ old_oid = NULL;
say(state, stderr, _("applying to an empty history"));
}
@@ -1681,7 +1701,7 @@ static void do_commit(const struct am_state *state)
setenv("GIT_COMMITTER_DATE",
state->ignore_date ? "" : state->author_date, 1);
- if (commit_tree(state->msg, state->msg_len, tree, parents, commit,
+ if (commit_tree(state->msg, state->msg_len, tree.hash, parents, commit.hash,
author, state->sign_commit))
die(_("failed to write commit object"));
@@ -1692,14 +1712,15 @@ static void do_commit(const struct am_state *state)
strbuf_addf(&sb, "%s: %.*s", reflog_msg, linelen(state->msg),
state->msg);
- update_ref(sb.buf, "HEAD", commit, ptr, 0, UPDATE_REFS_DIE_ON_ERR);
+ update_ref_oid(sb.buf, "HEAD", &commit, old_oid, 0,
+ UPDATE_REFS_DIE_ON_ERR);
if (state->rebasing) {
FILE *fp = xfopen(am_path(state, "rewritten"), "a");
- assert(!is_null_sha1(state->orig_commit));
- fprintf(fp, "%s ", sha1_to_hex(state->orig_commit));
- fprintf(fp, "%s\n", sha1_to_hex(commit));
+ assert(!is_null_oid(&state->orig_commit));
+ fprintf(fp, "%s ", oid_to_hex(&state->orig_commit));
+ fprintf(fp, "%s\n", oid_to_hex(&commit));
fclose(fp);
}
@@ -2020,30 +2041,30 @@ static int merge_tree(struct tree *tree)
* Clean the index without touching entries that are not modified between
* `head` and `remote`.
*/
-static int clean_index(const unsigned char *head, const unsigned char *remote)
+static int clean_index(const struct object_id *head, const struct object_id *remote)
{
struct tree *head_tree, *remote_tree, *index_tree;
- unsigned char index[GIT_SHA1_RAWSZ];
+ struct object_id index;
- head_tree = parse_tree_indirect(head);
+ head_tree = parse_tree_indirect(head->hash);
if (!head_tree)
- return error(_("Could not parse object '%s'."), sha1_to_hex(head));
+ return error(_("Could not parse object '%s'."), oid_to_hex(head));
- remote_tree = parse_tree_indirect(remote);
+ remote_tree = parse_tree_indirect(remote->hash);
if (!remote_tree)
- return error(_("Could not parse object '%s'."), sha1_to_hex(remote));
+ return error(_("Could not parse object '%s'."), oid_to_hex(remote));
read_cache_unmerged();
if (fast_forward_to(head_tree, head_tree, 1))
return -1;
- if (write_cache_as_tree(index, 0, NULL))
+ if (write_cache_as_tree(index.hash, 0, NULL))
return -1;
- index_tree = parse_tree_indirect(index);
+ index_tree = parse_tree_indirect(index.hash);
if (!index_tree)
- return error(_("Could not parse object '%s'."), sha1_to_hex(index));
+ return error(_("Could not parse object '%s'."), oid_to_hex(&index));
if (fast_forward_to(index_tree, remote_tree, 0))
return -1;
@@ -2071,14 +2092,14 @@ static void am_rerere_clear(void)
*/
static void am_skip(struct am_state *state)
{
- unsigned char head[GIT_SHA1_RAWSZ];
+ struct object_id head;
am_rerere_clear();
- if (get_sha1("HEAD", head))
- hashcpy(head, EMPTY_TREE_SHA1_BIN);
+ if (get_oid("HEAD", &head))
+ hashcpy(head.hash, EMPTY_TREE_SHA1_BIN);
- if (clean_index(head, head))
+ if (clean_index(&head, &head))
die(_("failed to clean index"));
am_next(state);
@@ -2096,24 +2117,24 @@ static void am_skip(struct am_state *state)
static int safe_to_abort(const struct am_state *state)
{
struct strbuf sb = STRBUF_INIT;
- unsigned char abort_safety[GIT_SHA1_RAWSZ], head[GIT_SHA1_RAWSZ];
+ struct object_id abort_safety, head;
if (file_exists(am_path(state, "dirtyindex")))
return 0;
if (read_state_file(&sb, state, "abort-safety", 1) > 0) {
- if (get_sha1_hex(sb.buf, abort_safety))
- die(_("could not parse %s"), am_path(state, "abort_safety"));
+ if (get_oid_hex(sb.buf, &abort_safety))
+ die(_("could not parse %s"), am_path(state, "abort-safety"));
} else
- hashclr(abort_safety);
+ oidclr(&abort_safety);
- if (get_sha1("HEAD", head))
- hashclr(head);
+ if (get_oid("HEAD", &head))
+ oidclr(&head);
- if (!hashcmp(head, abort_safety))
+ if (!oidcmp(&head, &abort_safety))
return 1;
- error(_("You seem to have moved HEAD since the last 'am' failure.\n"
+ warning(_("You seem to have moved HEAD since the last 'am' failure.\n"
"Not rewinding to ORIG_HEAD"));
return 0;
@@ -2124,7 +2145,7 @@ static int safe_to_abort(const struct am_state *state)
*/
static void am_abort(struct am_state *state)
{
- unsigned char curr_head[GIT_SHA1_RAWSZ], orig_head[GIT_SHA1_RAWSZ];
+ struct object_id curr_head, orig_head;
int has_curr_head, has_orig_head;
char *curr_branch;
@@ -2135,20 +2156,20 @@ static void am_abort(struct am_state *state)
am_rerere_clear();
- curr_branch = resolve_refdup("HEAD", 0, curr_head, NULL);
- has_curr_head = !is_null_sha1(curr_head);
+ curr_branch = resolve_refdup("HEAD", 0, curr_head.hash, NULL);
+ has_curr_head = !is_null_oid(&curr_head);
if (!has_curr_head)
- hashcpy(curr_head, EMPTY_TREE_SHA1_BIN);
+ hashcpy(curr_head.hash, EMPTY_TREE_SHA1_BIN);
- has_orig_head = !get_sha1("ORIG_HEAD", orig_head);
+ has_orig_head = !get_oid("ORIG_HEAD", &orig_head);
if (!has_orig_head)
- hashcpy(orig_head, EMPTY_TREE_SHA1_BIN);
+ hashcpy(orig_head.hash, EMPTY_TREE_SHA1_BIN);
- clean_index(curr_head, orig_head);
+ clean_index(&curr_head, &orig_head);
if (has_orig_head)
- update_ref("am --abort", "HEAD", orig_head,
- has_curr_head ? curr_head : NULL, 0,
+ update_ref_oid("am --abort", "HEAD", &orig_head,
+ has_curr_head ? &curr_head : NULL, 0,
UPDATE_REFS_DIE_ON_ERR);
else if (curr_branch)
delete_ref(curr_branch, NULL, REF_NODEREF);
diff --git a/builtin/apply.c b/builtin/apply.c
index 1a488f9..81b9a61 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -1,4793 +1,16 @@
-/*
- * apply.c
- *
- * Copyright (C) Linus Torvalds, 2005
- *
- * This applies patches on top of some (arbitrary) version of the SCM.
- *
- */
#include "cache.h"
-#include "lockfile.h"
-#include "cache-tree.h"
-#include "quote.h"
-#include "blob.h"
-#include "delta.h"
#include "builtin.h"
-#include "string-list.h"
-#include "dir.h"
-#include "diff.h"
#include "parse-options.h"
-#include "xdiff-interface.h"
-#include "ll-merge.h"
-#include "rerere.h"
-
-enum ws_error_action {
- nowarn_ws_error,
- warn_on_ws_error,
- die_on_ws_error,
- correct_ws_error
-};
-
-
-enum ws_ignore {
- ignore_ws_none,
- ignore_ws_change
-};
-
-/*
- * We need to keep track of how symlinks in the preimage are
- * manipulated by the patches. A patch to add a/b/c where a/b
- * is a symlink should not be allowed to affect the directory
- * the symlink points at, but if the same patch removes a/b,
- * it is perfectly fine, as the patch removes a/b to make room
- * to create a directory a/b so that a/b/c can be created.
- *
- * See also "struct string_list symlink_changes" in "struct
- * apply_state".
- */
-#define SYMLINK_GOES_AWAY 01
-#define SYMLINK_IN_RESULT 02
-
-struct apply_state {
- const char *prefix;
- int prefix_length;
-
- /* These are lock_file related */
- struct lock_file *lock_file;
- int newfd;
-
- /* These control what gets looked at and modified */
- int apply; /* this is not a dry-run */
- int cached; /* apply to the index only */
- int check; /* preimage must match working tree, don't actually apply */
- int check_index; /* preimage must match the indexed version */
- int update_index; /* check_index && apply */
-
- /* These control cosmetic aspect of the output */
- int diffstat; /* just show a diffstat, and don't actually apply */
- int numstat; /* just show a numeric diffstat, and don't actually apply */
- int summary; /* just report creation, deletion, etc, and don't actually apply */
-
- /* These boolean parameters control how the apply is done */
- int allow_overlap;
- int apply_in_reverse;
- int apply_with_reject;
- int apply_verbosely;
- int no_add;
- int threeway;
- int unidiff_zero;
- int unsafe_paths;
-
- /* Other non boolean parameters */
- const char *fake_ancestor;
- const char *patch_input_file;
- int line_termination;
- struct strbuf root;
- int p_value;
- int p_value_known;
- unsigned int p_context;
-
- /* Exclude and include path parameters */
- struct string_list limit_by_name;
- int has_include;
-
- /* Various "current state" */
- int linenr; /* current line number */
- struct string_list symlink_changes; /* we have to track symlinks */
-
- /*
- * For "diff-stat" like behaviour, we keep track of the biggest change
- * we've seen, and the longest filename. That allows us to do simple
- * scaling.
- */
- int max_change;
- int max_len;
-
- /*
- * Records filenames that have been touched, in order to handle
- * the case where more than one patches touch the same file.
- */
- struct string_list fn_table;
-
- /* These control whitespace errors */
- enum ws_error_action ws_error_action;
- enum ws_ignore ws_ignore_action;
- const char *whitespace_option;
- int whitespace_error;
- int squelch_whitespace_errors;
- int applied_after_fixing_ws;
-};
+#include "lockfile.h"
+#include "apply.h"
static const char * const apply_usage[] = {
N_("git apply [<options>] [<patch>...]"),
NULL
};
-static void parse_whitespace_option(struct apply_state *state, const char *option)
-{
- if (!option) {
- state->ws_error_action = warn_on_ws_error;
- return;
- }
- if (!strcmp(option, "warn")) {
- state->ws_error_action = warn_on_ws_error;
- return;
- }
- if (!strcmp(option, "nowarn")) {
- state->ws_error_action = nowarn_ws_error;
- return;
- }
- if (!strcmp(option, "error")) {
- state->ws_error_action = die_on_ws_error;
- return;
- }
- if (!strcmp(option, "error-all")) {
- state->ws_error_action = die_on_ws_error;
- state->squelch_whitespace_errors = 0;
- return;
- }
- if (!strcmp(option, "strip") || !strcmp(option, "fix")) {
- state->ws_error_action = correct_ws_error;
- return;
- }
- die(_("unrecognized whitespace option '%s'"), option);
-}
-
-static void parse_ignorewhitespace_option(struct apply_state *state,
- const char *option)
-{
- if (!option || !strcmp(option, "no") ||
- !strcmp(option, "false") || !strcmp(option, "never") ||
- !strcmp(option, "none")) {
- state->ws_ignore_action = ignore_ws_none;
- return;
- }
- if (!strcmp(option, "change")) {
- state->ws_ignore_action = ignore_ws_change;
- return;
- }
- die(_("unrecognized whitespace ignore option '%s'"), option);
-}
-
-static void set_default_whitespace_mode(struct apply_state *state)
-{
- if (!state->whitespace_option && !apply_default_whitespace)
- state->ws_error_action = (state->apply ? warn_on_ws_error : nowarn_ws_error);
-}
-
-/*
- * This represents one "hunk" from a patch, starting with
- * "@@ -oldpos,oldlines +newpos,newlines @@" marker. The
- * patch text is pointed at by patch, and its byte length
- * is stored in size. leading and trailing are the number
- * of context lines.
- */
-struct fragment {
- unsigned long leading, trailing;
- unsigned long oldpos, oldlines;
- unsigned long newpos, newlines;
- /*
- * 'patch' is usually borrowed from buf in apply_patch(),
- * but some codepaths store an allocated buffer.
- */
- const char *patch;
- unsigned free_patch:1,
- rejected:1;
- int size;
- int linenr;
- struct fragment *next;
-};
-
-/*
- * When dealing with a binary patch, we reuse "leading" field
- * to store the type of the binary hunk, either deflated "delta"
- * or deflated "literal".
- */
-#define binary_patch_method leading
-#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;
- 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;
- struct fragment *fragments;
- char *result;
- size_t resultsize;
- char old_sha1_prefix[41];
- char new_sha1_prefix[41];
- struct patch *next;
-
- /* three-way fallback result */
- struct object_id threeway_stage[3];
-};
-
-static void free_fragment_list(struct fragment *list)
-{
- while (list) {
- struct fragment *next = list->next;
- if (list->free_patch)
- free((char *)list->patch);
- free(list);
- list = next;
- }
-}
-
-static void free_patch(struct patch *patch)
-{
- free_fragment_list(patch->fragments);
- free(patch->def_name);
- free(patch->old_name);
- free(patch->new_name);
- free(patch->result);
- free(patch);
-}
-
-static void free_patch_list(struct patch *list)
-{
- while (list) {
- struct patch *next = list->next;
- free_patch(list);
- list = next;
- }
-}
-
-/*
- * A line in a file, len-bytes long (includes the terminating LF,
- * except for an incomplete line at the end if the file ends with
- * one), and its contents hashes to 'hash'.
- */
-struct line {
- size_t len;
- unsigned hash : 24;
- unsigned flag : 8;
-#define LINE_COMMON 1
-#define LINE_PATCHED 2
-};
-
-/*
- * This represents a "file", which is an array of "lines".
- */
-struct image {
- char *buf;
- size_t len;
- size_t nr;
- size_t alloc;
- struct line *line_allocated;
- struct line *line;
-};
-
-static uint32_t hash_line(const char *cp, size_t len)
-{
- size_t i;
- uint32_t h;
- for (i = 0, h = 0; i < len; i++) {
- if (!isspace(cp[i])) {
- h = h * 3 + (cp[i] & 0xff);
- }
- }
- return h;
-}
-
-/*
- * Compare lines s1 of length n1 and s2 of length n2, ignoring
- * whitespace difference. Returns 1 if they match, 0 otherwise
- */
-static int fuzzy_matchlines(const char *s1, size_t n1,
- const char *s2, size_t n2)
-{
- const char *last1 = s1 + n1 - 1;
- const char *last2 = s2 + n2 - 1;
- int result = 0;
-
- /* ignore line endings */
- while ((*last1 == '\r') || (*last1 == '\n'))
- last1--;
- while ((*last2 == '\r') || (*last2 == '\n'))
- last2--;
-
- /* skip leading whitespaces, if both begin with whitespace */
- if (s1 <= last1 && s2 <= last2 && isspace(*s1) && isspace(*s2)) {
- while (isspace(*s1) && (s1 <= last1))
- s1++;
- while (isspace(*s2) && (s2 <= last2))
- s2++;
- }
- /* early return if both lines are empty */
- if ((s1 > last1) && (s2 > last2))
- return 1;
- while (!result) {
- result = *s1++ - *s2++;
- /*
- * Skip whitespace inside. We check for whitespace on
- * both buffers because we don't want "a b" to match
- * "ab"
- */
- if (isspace(*s1) && isspace(*s2)) {
- while (isspace(*s1) && s1 <= last1)
- s1++;
- while (isspace(*s2) && s2 <= last2)
- s2++;
- }
- /*
- * If we reached the end on one side only,
- * lines don't match
- */
- if (
- ((s2 > last2) && (s1 <= last1)) ||
- ((s1 > last1) && (s2 <= last2)))
- return 0;
- if ((s1 > last1) && (s2 > last2))
- break;
- }
-
- return !result;
-}
-
-static void add_line_info(struct image *img, const char *bol, size_t len, unsigned flag)
-{
- ALLOC_GROW(img->line_allocated, img->nr + 1, img->alloc);
- img->line_allocated[img->nr].len = len;
- img->line_allocated[img->nr].hash = hash_line(bol, len);
- img->line_allocated[img->nr].flag = flag;
- img->nr++;
-}
-
-/*
- * "buf" has the file contents to be patched (read from various sources).
- * attach it to "image" and add line-based index to it.
- * "image" now owns the "buf".
- */
-static void prepare_image(struct image *image, char *buf, size_t len,
- int prepare_linetable)
-{
- const char *cp, *ep;
-
- memset(image, 0, sizeof(*image));
- image->buf = buf;
- image->len = len;
-
- if (!prepare_linetable)
- return;
-
- ep = image->buf + image->len;
- cp = image->buf;
- while (cp < ep) {
- const char *next;
- for (next = cp; next < ep && *next != '\n'; next++)
- ;
- if (next < ep)
- next++;
- add_line_info(image, cp, next - cp, 0);
- cp = next;
- }
- image->line = image->line_allocated;
-}
-
-static void clear_image(struct image *image)
-{
- free(image->buf);
- free(image->line_allocated);
- memset(image, 0, sizeof(*image));
-}
-
-/* fmt must contain _one_ %s and no other substitution */
-static void say_patch_name(FILE *output, const char *fmt, struct patch *patch)
-{
- struct strbuf sb = STRBUF_INIT;
-
- if (patch->old_name && patch->new_name &&
- strcmp(patch->old_name, patch->new_name)) {
- quote_c_style(patch->old_name, &sb, NULL, 0);
- strbuf_addstr(&sb, " => ");
- quote_c_style(patch->new_name, &sb, NULL, 0);
- } else {
- const char *n = patch->new_name;
- if (!n)
- n = patch->old_name;
- quote_c_style(n, &sb, NULL, 0);
- }
- fprintf(output, fmt, sb.buf);
- fputc('\n', output);
- strbuf_release(&sb);
-}
-
-#define SLOP (16)
-
-static void read_patch_file(struct strbuf *sb, int fd)
-{
- if (strbuf_read(sb, fd, 0) < 0)
- die_errno("git apply: failed to read");
-
- /*
- * Make sure that we have some slop in the buffer
- * so that we can do speculative "memcmp" etc, and
- * see to it that it is NUL-filled.
- */
- strbuf_grow(sb, SLOP);
- memset(sb->buf + sb->len, 0, SLOP);
-}
-
-static unsigned long linelen(const char *buffer, unsigned long size)
-{
- unsigned long len = 0;
- while (size--) {
- len++;
- if (*buffer++ == '\n')
- break;
- }
- return len;
-}
-
-static int is_dev_null(const char *str)
-{
- return skip_prefix(str, "/dev/null", &str) && isspace(*str);
-}
-
-#define TERM_SPACE 1
-#define TERM_TAB 2
-
-static int name_terminate(int c, int terminate)
-{
- if (c == ' ' && !(terminate & TERM_SPACE))
- return 0;
- if (c == '\t' && !(terminate & TERM_TAB))
- return 0;
-
- return 1;
-}
-
-/* remove double slashes to make --index work with such filenames */
-static char *squash_slash(char *name)
-{
- int i = 0, j = 0;
-
- if (!name)
- return NULL;
-
- while (name[i]) {
- if ((name[j++] = name[i++]) == '/')
- while (name[i] == '/')
- i++;
- }
- name[j] = '\0';
- return name;
-}
-
-static char *find_name_gnu(struct apply_state *state,
- const char *line,
- const char *def,
- int p_value)
-{
- struct strbuf name = STRBUF_INIT;
- char *cp;
-
- /*
- * Proposed "new-style" GNU patch/diff format; see
- * http://marc.info/?l=git&m=112927316408690&w=2
- */
- if (unquote_c_style(&name, line, NULL)) {
- strbuf_release(&name);
- return NULL;
- }
-
- for (cp = name.buf; p_value; p_value--) {
- cp = strchr(cp, '/');
- if (!cp) {
- strbuf_release(&name);
- return NULL;
- }
- cp++;
- }
-
- strbuf_remove(&name, 0, cp - name.buf);
- if (state->root.len)
- strbuf_insert(&name, 0, state->root.buf, state->root.len);
- return squash_slash(strbuf_detach(&name, NULL));
-}
-
-static size_t sane_tz_len(const char *line, size_t len)
-{
- const char *tz, *p;
-
- if (len < strlen(" +0500") || line[len-strlen(" +0500")] != ' ')
- return 0;
- tz = line + len - strlen(" +0500");
-
- if (tz[1] != '+' && tz[1] != '-')
- return 0;
-
- for (p = tz + 2; p != line + len; p++)
- if (!isdigit(*p))
- return 0;
-
- return line + len - tz;
-}
-
-static size_t tz_with_colon_len(const char *line, size_t len)
-{
- const char *tz, *p;
-
- if (len < strlen(" +08:00") || line[len - strlen(":00")] != ':')
- return 0;
- tz = line + len - strlen(" +08:00");
-
- if (tz[0] != ' ' || (tz[1] != '+' && tz[1] != '-'))
- return 0;
- p = tz + 2;
- if (!isdigit(*p++) || !isdigit(*p++) || *p++ != ':' ||
- !isdigit(*p++) || !isdigit(*p++))
- return 0;
-
- return line + len - tz;
-}
-
-static size_t date_len(const char *line, size_t len)
-{
- const char *date, *p;
-
- if (len < strlen("72-02-05") || line[len-strlen("-05")] != '-')
- return 0;
- p = date = line + len - strlen("72-02-05");
-
- if (!isdigit(*p++) || !isdigit(*p++) || *p++ != '-' ||
- !isdigit(*p++) || !isdigit(*p++) || *p++ != '-' ||
- !isdigit(*p++) || !isdigit(*p++)) /* Not a date. */
- return 0;
-
- if (date - line >= strlen("19") &&
- isdigit(date[-1]) && isdigit(date[-2])) /* 4-digit year */
- date -= strlen("19");
-
- return line + len - date;
-}
-
-static size_t short_time_len(const char *line, size_t len)
-{
- const char *time, *p;
-
- if (len < strlen(" 07:01:32") || line[len-strlen(":32")] != ':')
- return 0;
- p = time = line + len - strlen(" 07:01:32");
-
- /* Permit 1-digit hours? */
- if (*p++ != ' ' ||
- !isdigit(*p++) || !isdigit(*p++) || *p++ != ':' ||
- !isdigit(*p++) || !isdigit(*p++) || *p++ != ':' ||
- !isdigit(*p++) || !isdigit(*p++)) /* Not a time. */
- return 0;
-
- return line + len - time;
-}
-
-static size_t fractional_time_len(const char *line, size_t len)
-{
- const char *p;
- size_t n;
-
- /* Expected format: 19:41:17.620000023 */
- if (!len || !isdigit(line[len - 1]))
- return 0;
- p = line + len - 1;
-
- /* Fractional seconds. */
- while (p > line && isdigit(*p))
- p--;
- if (*p != '.')
- return 0;
-
- /* Hours, minutes, and whole seconds. */
- n = short_time_len(line, p - line);
- if (!n)
- return 0;
-
- return line + len - p + n;
-}
-
-static size_t trailing_spaces_len(const char *line, size_t len)
-{
- const char *p;
-
- /* Expected format: ' ' x (1 or more) */
- if (!len || line[len - 1] != ' ')
- return 0;
-
- p = line + len;
- while (p != line) {
- p--;
- if (*p != ' ')
- return line + len - (p + 1);
- }
-
- /* All spaces! */
- return len;
-}
-
-static size_t diff_timestamp_len(const char *line, size_t len)
-{
- const char *end = line + len;
- size_t n;
-
- /*
- * Posix: 2010-07-05 19:41:17
- * GNU: 2010-07-05 19:41:17.620000023 -0500
- */
-
- if (!isdigit(end[-1]))
- return 0;
-
- n = sane_tz_len(line, end - line);
- if (!n)
- n = tz_with_colon_len(line, end - line);
- end -= n;
-
- n = short_time_len(line, end - line);
- if (!n)
- n = fractional_time_len(line, end - line);
- end -= n;
-
- n = date_len(line, end - line);
- if (!n) /* No date. Too bad. */
- return 0;
- end -= n;
-
- if (end == line) /* No space before date. */
- return 0;
- if (end[-1] == '\t') { /* Success! */
- end--;
- return line + len - end;
- }
- if (end[-1] != ' ') /* No space before date. */
- return 0;
-
- /* Whitespace damage. */
- end -= trailing_spaces_len(line, end - line);
- return line + len - end;
-}
-
-static char *find_name_common(struct apply_state *state,
- const char *line,
- const char *def,
- int p_value,
- const char *end,
- int terminate)
-{
- int len;
- const char *start = NULL;
-
- if (p_value == 0)
- start = line;
- while (line != end) {
- char c = *line;
-
- if (!end && isspace(c)) {
- if (c == '\n')
- break;
- if (name_terminate(c, terminate))
- break;
- }
- line++;
- if (c == '/' && !--p_value)
- start = line;
- }
- if (!start)
- return squash_slash(xstrdup_or_null(def));
- len = line - start;
- if (!len)
- return squash_slash(xstrdup_or_null(def));
-
- /*
- * Generally we prefer the shorter name, especially
- * if the other one is just a variation of that with
- * something else tacked on to the end (ie "file.orig"
- * or "file~").
- */
- if (def) {
- int deflen = strlen(def);
- if (deflen < len && !strncmp(start, def, deflen))
- return squash_slash(xstrdup(def));
- }
-
- if (state->root.len) {
- char *ret = xstrfmt("%s%.*s", state->root.buf, len, start);
- return squash_slash(ret);
- }
-
- return squash_slash(xmemdupz(start, len));
-}
-
-static char *find_name(struct apply_state *state,
- const char *line,
- char *def,
- int p_value,
- int terminate)
-{
- if (*line == '"') {
- char *name = find_name_gnu(state, line, def, p_value);
- if (name)
- return name;
- }
-
- return find_name_common(state, line, def, p_value, NULL, terminate);
-}
-
-static char *find_name_traditional(struct apply_state *state,
- const char *line,
- char *def,
- int p_value)
-{
- size_t len;
- size_t date_len;
-
- if (*line == '"') {
- char *name = find_name_gnu(state, line, def, p_value);
- if (name)
- return name;
- }
-
- 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);
- len -= date_len;
-
- return find_name_common(state, line, def, p_value, line + len, 0);
-}
-
-static int count_slashes(const char *cp)
-{
- int cnt = 0;
- char ch;
-
- while ((ch = *cp++))
- if (ch == '/')
- cnt++;
- return cnt;
-}
-
-/*
- * Given the string after "--- " or "+++ ", guess the appropriate
- * p_value for the given patch.
- */
-static int guess_p_value(struct apply_state *state, const char *nameline)
-{
- char *name, *cp;
- int val = -1;
-
- if (is_dev_null(nameline))
- return -1;
- name = find_name_traditional(state, nameline, NULL, 0);
- if (!name)
- return -1;
- cp = strchr(name, '/');
- if (!cp)
- val = 0;
- else if (state->prefix) {
- /*
- * Does it begin with "a/$our-prefix" and such? Then this is
- * very likely to apply to our directory.
- */
- if (!strncmp(name, state->prefix, state->prefix_length))
- val = count_slashes(state->prefix);
- else {
- cp++;
- if (!strncmp(cp, state->prefix, state->prefix_length))
- val = count_slashes(state->prefix) + 1;
- }
- }
- free(name);
- return val;
-}
-
-/*
- * Does the ---/+++ line have the POSIX timestamp after the last HT?
- * GNU diff puts epoch there to signal a creation/deletion event. Is
- * this such a timestamp?
- */
-static int has_epoch_timestamp(const char *nameline)
-{
- /*
- * We are only interested in epoch timestamp; any non-zero
- * fraction cannot be one, hence "(\.0+)?" in the regexp below.
- * For the same reason, the date must be either 1969-12-31 or
- * 1970-01-01, and the seconds part must be "00".
- */
- const char stamp_regexp[] =
- "^(1969-12-31|1970-01-01)"
- " "
- "[0-2][0-9]:[0-5][0-9]:00(\\.0+)?"
- " "
- "([-+][0-2][0-9]:?[0-5][0-9])\n";
- const char *timestamp = NULL, *cp, *colon;
- static regex_t *stamp;
- regmatch_t m[10];
- int zoneoffset;
- int hourminute;
- int status;
-
- for (cp = nameline; *cp != '\n'; cp++) {
- if (*cp == '\t')
- timestamp = cp + 1;
- }
- if (!timestamp)
- return 0;
- if (!stamp) {
- stamp = xmalloc(sizeof(*stamp));
- if (regcomp(stamp, stamp_regexp, REG_EXTENDED)) {
- warning(_("Cannot prepare timestamp regexp %s"),
- stamp_regexp);
- return 0;
- }
- }
-
- status = regexec(stamp, timestamp, ARRAY_SIZE(m), m, 0);
- if (status) {
- if (status != REG_NOMATCH)
- warning(_("regexec returned %d for input: %s"),
- status, timestamp);
- return 0;
- }
-
- zoneoffset = strtol(timestamp + m[3].rm_so + 1, (char **) &colon, 10);
- if (*colon == ':')
- zoneoffset = zoneoffset * 60 + strtol(colon + 1, NULL, 10);
- else
- zoneoffset = (zoneoffset / 100) * 60 + (zoneoffset % 100);
- if (timestamp[m[3].rm_so] == '-')
- zoneoffset = -zoneoffset;
-
- /*
- * YYYY-MM-DD hh:mm:ss must be from either 1969-12-31
- * (west of GMT) or 1970-01-01 (east of GMT)
- */
- if ((zoneoffset < 0 && memcmp(timestamp, "1969-12-31", 10)) ||
- (0 <= zoneoffset && memcmp(timestamp, "1970-01-01", 10)))
- return 0;
-
- hourminute = (strtol(timestamp + 11, NULL, 10) * 60 +
- strtol(timestamp + 14, NULL, 10) -
- zoneoffset);
-
- return ((zoneoffset < 0 && hourminute == 1440) ||
- (0 <= zoneoffset && !hourminute));
-}
-
-/*
- * Get the name etc info from the ---/+++ lines of a traditional patch header
- *
- * FIXME! The end-of-filename heuristics are kind of screwy. For existing
- * files, we can happily check the index for a match, but for creating a
- * new file we should try to match whatever "patch" does. I have no idea.
- */
-static void parse_traditional_patch(struct apply_state *state,
- const char *first,
- const char *second,
- struct patch *patch)
-{
- char *name;
-
- first += 4; /* skip "--- " */
- second += 4; /* skip "+++ " */
- if (!state->p_value_known) {
- int p, q;
- p = guess_p_value(state, first);
- q = guess_p_value(state, second);
- if (p < 0) p = q;
- if (0 <= p && p == q) {
- state->p_value = p;
- state->p_value_known = 1;
- }
- }
- if (is_dev_null(first)) {
- patch->is_new = 1;
- patch->is_delete = 0;
- name = find_name_traditional(state, 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);
- 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);
- free(first_name);
- if (has_epoch_timestamp(first)) {
- patch->is_new = 1;
- patch->is_delete = 0;
- patch->new_name = name;
- } else if (has_epoch_timestamp(second)) {
- patch->is_new = 0;
- patch->is_delete = 1;
- patch->old_name = name;
- } else {
- patch->old_name = name;
- patch->new_name = xstrdup_or_null(name);
- }
- }
- if (!name)
- die(_("unable to find filename in patch at line %d"), state->linenr);
-}
-
-static int gitdiff_hdrend(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- return -1;
-}
-
-/*
- * We're anal about diff header consistency, to make
- * sure that we don't end up having strange ambiguous
- * patches floating around.
- *
- * As a result, gitdiff_{old|new}name() will check
- * their names against any previous information, just
- * to make sure..
- */
-#define DIFF_OLD_NAME 0
-#define DIFF_NEW_NAME 1
-
-static void gitdiff_verify_name(struct apply_state *state,
- const char *line,
- int isnull,
- char **name,
- int side)
-{
- if (!*name && !isnull) {
- *name = find_name(state, line, NULL, state->p_value, TERM_TAB);
- return;
- }
-
- if (*name) {
- int len = strlen(*name);
- char *another;
- if (isnull)
- die(_("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);
- if (!another || memcmp(another, *name, len + 1))
- die((side == DIFF_NEW_NAME) ?
- _("git apply: bad git-diff - inconsistent new filename on line %d") :
- _("git apply: bad git-diff - inconsistent old filename on line %d"), state->linenr);
- free(another);
- } else {
- /* expect "/dev/null" */
- if (memcmp("/dev/null", line, 9) || line[9] != '\n')
- die(_("git apply: bad git-diff - expected /dev/null on line %d"), state->linenr);
- }
-}
-
-static int gitdiff_oldname(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- gitdiff_verify_name(state, line,
- patch->is_new, &patch->old_name,
- DIFF_OLD_NAME);
- return 0;
-}
-
-static int gitdiff_newname(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- gitdiff_verify_name(state, line,
- patch->is_delete, &patch->new_name,
- DIFF_NEW_NAME);
- return 0;
-}
-
-static int gitdiff_oldmode(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- patch->old_mode = strtoul(line, NULL, 8);
- return 0;
-}
-
-static int gitdiff_newmode(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- patch->new_mode = strtoul(line, NULL, 8);
- return 0;
-}
-
-static int gitdiff_delete(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- patch->is_delete = 1;
- free(patch->old_name);
- patch->old_name = xstrdup_or_null(patch->def_name);
- return gitdiff_oldmode(state, line, patch);
-}
-
-static int gitdiff_newfile(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- patch->is_new = 1;
- free(patch->new_name);
- patch->new_name = xstrdup_or_null(patch->def_name);
- return gitdiff_newmode(state, line, patch);
-}
-
-static int gitdiff_copysrc(struct apply_state *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);
- return 0;
-}
-
-static int gitdiff_copydst(struct apply_state *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);
- return 0;
-}
-
-static int gitdiff_renamesrc(struct apply_state *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);
- return 0;
-}
-
-static int gitdiff_renamedst(struct apply_state *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);
- return 0;
-}
-
-static int gitdiff_similarity(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- unsigned long val = strtoul(line, NULL, 10);
- if (val <= 100)
- patch->score = val;
- return 0;
-}
-
-static int gitdiff_dissimilarity(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- unsigned long val = strtoul(line, NULL, 10);
- if (val <= 100)
- patch->score = val;
- return 0;
-}
-
-static int gitdiff_index(struct apply_state *state,
- const char *line,
- struct patch *patch)
-{
- /*
- * index line is N hexadecimal, "..", N hexadecimal,
- * and optional space with octal mode.
- */
- const char *ptr, *eol;
- int len;
-
- ptr = strchr(line, '.');
- if (!ptr || ptr[1] != '.' || 40 < ptr - line)
- return 0;
- len = ptr - line;
- memcpy(patch->old_sha1_prefix, line, len);
- patch->old_sha1_prefix[len] = 0;
-
- line = ptr + 2;
- ptr = strchr(line, ' ');
- eol = strchrnul(line, '\n');
-
- if (!ptr || eol < ptr)
- ptr = eol;
- len = ptr - line;
-
- if (40 < len)
- return 0;
- memcpy(patch->new_sha1_prefix, line, len);
- patch->new_sha1_prefix[len] = 0;
- if (*ptr == ' ')
- patch->old_mode = strtoul(ptr+1, NULL, 8);
- return 0;
-}
-
-/*
- * 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,
- const char *line,
- struct patch *patch)
-{
- return -1;
-}
-
-/*
- * 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,
- const char *line,
- int llen)
-{
- int nslash;
- int i;
-
- if (!state->p_value)
- return (llen && line[0] == '/') ? NULL : line;
-
- nslash = state->p_value;
- for (i = 0; i < llen; i++) {
- int ch = line[i];
- if (ch == '/' && --nslash <= 0)
- return (i == 0) ? NULL : &line[i + 1];
- }
- return NULL;
-}
-
-/*
- * This is to extract the same name that appears on "diff --git"
- * line. We do not find and return anything if it is a rename
- * patch, and it is OK because we will find the name elsewhere.
- * We need to reliably find name only when it is mode-change only,
- * 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,
- const char *line,
- int llen)
-{
- const char *name;
- const char *second = NULL;
- size_t len, line_len;
-
- line += strlen("diff --git ");
- llen -= strlen("diff --git ");
-
- if (*line == '"') {
- const char *cp;
- struct strbuf first = STRBUF_INIT;
- struct strbuf sp = STRBUF_INIT;
-
- if (unquote_c_style(&first, line, &second))
- goto free_and_fail1;
-
- /* strip the a/b prefix including trailing slash */
- cp = skip_tree_prefix(state, first.buf, first.len);
- if (!cp)
- goto free_and_fail1;
- strbuf_remove(&first, 0, cp - first.buf);
-
- /*
- * second points at one past closing dq of name.
- * find the second name.
- */
- while ((second < line + llen) && isspace(*second))
- second++;
-
- if (line + llen <= second)
- goto free_and_fail1;
- if (*second == '"') {
- if (unquote_c_style(&sp, second, NULL))
- goto free_and_fail1;
- cp = skip_tree_prefix(state, sp.buf, sp.len);
- if (!cp)
- goto free_and_fail1;
- /* They must match, otherwise ignore */
- if (strcmp(cp, first.buf))
- goto free_and_fail1;
- strbuf_release(&sp);
- return strbuf_detach(&first, NULL);
- }
-
- /* unquoted second */
- cp = skip_tree_prefix(state, second, line + llen - second);
- if (!cp)
- goto free_and_fail1;
- if (line + llen - cp != first.len ||
- memcmp(first.buf, cp, first.len))
- goto free_and_fail1;
- return strbuf_detach(&first, NULL);
-
- free_and_fail1:
- strbuf_release(&first);
- strbuf_release(&sp);
- return NULL;
- }
-
- /* unquoted first name */
- name = skip_tree_prefix(state, line, llen);
- if (!name)
- return NULL;
-
- /*
- * since the first name is unquoted, a dq if exists must be
- * the beginning of the second name.
- */
- for (second = name; second < line + llen; second++) {
- if (*second == '"') {
- struct strbuf sp = STRBUF_INIT;
- const char *np;
-
- if (unquote_c_style(&sp, second, NULL))
- goto free_and_fail2;
-
- np = skip_tree_prefix(state, sp.buf, sp.len);
- if (!np)
- goto free_and_fail2;
-
- len = sp.buf + sp.len - np;
- if (len < second - name &&
- !strncmp(np, name, len) &&
- isspace(name[len])) {
- /* Good */
- strbuf_remove(&sp, 0, np - sp.buf);
- return strbuf_detach(&sp, NULL);
- }
-
- free_and_fail2:
- strbuf_release(&sp);
- return NULL;
- }
- }
-
- /*
- * Accept a name only if it shows up twice, exactly the same
- * form.
- */
- second = strchr(name, '\n');
- if (!second)
- return NULL;
- line_len = second - name;
- for (len = 0 ; ; len++) {
- switch (name[len]) {
- default:
- continue;
- case '\n':
- return NULL;
- case '\t': case ' ':
- /*
- * Is this the separator between the preimage
- * and the postimage pathname? Again, we are
- * only interested in the case where there is
- * no rename, as this is only to set def_name
- * and a rename patch has the names elsewhere
- * in an unambiguous form.
- */
- if (!name[len + 1])
- return NULL; /* no postimage name */
- second = skip_tree_prefix(state, name + len + 1,
- line_len - (len + 1));
- if (!second)
- return NULL;
- /*
- * Does len bytes starting at "name" and "second"
- * (that are separated by one HT or SP we just
- * found) exactly match?
- */
- if (second[len] == '\n' && !strncmp(name, second, len))
- return xmemdupz(name, len);
- }
- }
-}
-
-/* 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)
-{
- unsigned long offset;
-
- /* A git diff has explicit new/delete information, so we don't guess */
- patch->is_new = 0;
- patch->is_delete = 0;
-
- /*
- * Some things may not have the old name in the
- * rest of the headers anywhere (pure mode changes,
- * 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);
- 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++) {
- static const struct opentry {
- const char *str;
- int (*fn)(struct apply_state *, const char *, struct patch *);
- } optable[] = {
- { "@@ -", gitdiff_hdrend },
- { "--- ", gitdiff_oldname },
- { "+++ ", gitdiff_newname },
- { "old mode ", gitdiff_oldmode },
- { "new mode ", gitdiff_newmode },
- { "deleted file mode ", gitdiff_delete },
- { "new file mode ", gitdiff_newfile },
- { "copy from ", gitdiff_copysrc },
- { "copy to ", gitdiff_copydst },
- { "rename old ", gitdiff_renamesrc },
- { "rename new ", gitdiff_renamedst },
- { "rename from ", gitdiff_renamesrc },
- { "rename to ", gitdiff_renamedst },
- { "similarity index ", gitdiff_similarity },
- { "dissimilarity index ", gitdiff_dissimilarity },
- { "index ", gitdiff_index },
- { "", gitdiff_unrecognized },
- };
- int i;
-
- len = linelen(line, size);
- if (!len || line[len-1] != '\n')
- break;
- for (i = 0; i < ARRAY_SIZE(optable); i++) {
- const struct opentry *p = optable + i;
- int oplen = strlen(p->str);
- if (len < oplen || memcmp(p->str, line, oplen))
- continue;
- if (p->fn(state, line + oplen, patch) < 0)
- return offset;
- break;
- }
- }
-
- return offset;
-}
-
-static int parse_num(const char *line, unsigned long *p)
-{
- char *ptr;
-
- if (!isdigit(*line))
- return 0;
- *p = strtoul(line, &ptr, 10);
- return ptr - line;
-}
-
-static int parse_range(const char *line, int len, int offset, const char *expect,
- unsigned long *p1, unsigned long *p2)
-{
- int digits, ex;
-
- if (offset < 0 || offset >= len)
- return -1;
- line += offset;
- len -= offset;
-
- digits = parse_num(line, p1);
- if (!digits)
- return -1;
-
- offset += digits;
- line += digits;
- len -= digits;
-
- *p2 = 1;
- if (*line == ',') {
- digits = parse_num(line+1, p2);
- if (!digits)
- return -1;
-
- offset += digits+1;
- line += digits+1;
- len -= digits+1;
- }
-
- ex = strlen(expect);
- if (ex > len)
- return -1;
- if (memcmp(line, expect, ex))
- return -1;
-
- return offset + ex;
-}
-
-static void recount_diff(const char *line, int size, struct fragment *fragment)
-{
- int oldlines = 0, newlines = 0, ret = 0;
-
- if (size < 1) {
- warning("recount: ignore empty hunk");
- return;
- }
-
- for (;;) {
- int len = linelen(line, size);
- size -= len;
- line += len;
-
- if (size < 1)
- break;
-
- switch (*line) {
- case ' ': case '\n':
- newlines++;
- /* fall through */
- case '-':
- oldlines++;
- continue;
- case '+':
- newlines++;
- continue;
- case '\\':
- continue;
- case '@':
- ret = size < 3 || !starts_with(line, "@@ ");
- break;
- case 'd':
- ret = size < 5 || !starts_with(line, "diff ");
- break;
- default:
- ret = -1;
- break;
- }
- if (ret) {
- warning(_("recount: unexpected line: %.*s"),
- (int)linelen(line, size), line);
- return;
- }
- break;
- }
- fragment->oldlines = oldlines;
- fragment->newlines = newlines;
-}
-
-/*
- * Parse a unified diff fragment header of the
- * form "@@ -a,b +c,d @@"
- */
-static int parse_fragment_header(const char *line, int len, struct fragment *fragment)
-{
- int offset;
-
- if (!len || line[len-1] != '\n')
- return -1;
-
- /* Figure out the number of lines in a fragment */
- offset = parse_range(line, len, 4, " +", &fragment->oldpos, &fragment->oldlines);
- offset = parse_range(line, len, offset, " @@", &fragment->newpos, &fragment->newlines);
-
- return offset;
-}
-
-static int find_header(struct apply_state *state,
- const char *line,
- unsigned long size,
- int *hdrsize,
- struct patch *patch)
-{
- unsigned long offset, len;
-
- patch->is_toplevel_relative = 0;
- patch->is_rename = patch->is_copy = 0;
- patch->is_new = patch->is_delete = -1;
- patch->old_mode = patch->new_mode = 0;
- patch->old_name = patch->new_name = NULL;
- for (offset = 0; size > 0; offset += len, size -= len, line += len, state->linenr++) {
- unsigned long nextlen;
-
- len = linelen(line, size);
- if (!len)
- break;
-
- /* Testing this early allows us to take a few shortcuts.. */
- if (len < 6)
- continue;
-
- /*
- * Make sure we don't find any unconnected patch fragments.
- * That's a sign that we didn't find a header, and that a
- * patch has become corrupted/broken up.
- */
- if (!memcmp("@@ -", line, 4)) {
- struct fragment dummy;
- if (parse_fragment_header(line, len, &dummy) < 0)
- continue;
- die(_("patch fragment without header at line %d: %.*s"),
- state->linenr, (int)len-1, line);
- }
-
- if (size < len + 6)
- break;
-
- /*
- * Git patch? It might not have a real patch, just a rename
- * 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);
- if (git_hdr_len <= len)
- continue;
- if (!patch->old_name && !patch->new_name) {
- if (!patch->def_name)
- die(Q_("git diff header lacks filename information when removing "
- "%d leading pathname component (line %d)",
- "git diff header lacks filename information when removing "
- "%d leading pathname components (line %d)",
- state->p_value),
- state->p_value, state->linenr);
- patch->old_name = xstrdup(patch->def_name);
- patch->new_name = xstrdup(patch->def_name);
- }
- if (!patch->is_delete && !patch->new_name)
- die("git diff header lacks filename information "
- "(line %d)", state->linenr);
- patch->is_toplevel_relative = 1;
- *hdrsize = git_hdr_len;
- return offset;
- }
-
- /* --- followed by +++ ? */
- if (memcmp("--- ", line, 4) || memcmp("+++ ", line + len, 4))
- continue;
-
- /*
- * We only accept unified patches, so we want it to
- * at least have "@@ -a,b +c,d @@\n", which is 14 chars
- * minimum ("@@ -0,0 +1 @@\n" is the shortest).
- */
- nextlen = linelen(line + len, size - len);
- if (size < nextlen + 14 || memcmp("@@ -", line + len + nextlen, 4))
- continue;
-
- /* Ok, we'll consider it a patch */
- parse_traditional_patch(state, line, line+len, patch);
- *hdrsize = len + nextlen;
- state->linenr += 2;
- return offset;
- }
- return -1;
-}
-
-static void record_ws_error(struct apply_state *state,
- unsigned result,
- const char *line,
- int len,
- int linenr)
-{
- char *err;
-
- if (!result)
- return;
-
- state->whitespace_error++;
- if (state->squelch_whitespace_errors &&
- state->squelch_whitespace_errors < state->whitespace_error)
- return;
-
- err = whitespace_error_string(result);
- fprintf(stderr, "%s:%d: %s.\n%.*s\n",
- state->patch_input_file, linenr, err, len, line);
- free(err);
-}
-
-static void check_whitespace(struct apply_state *state,
- const char *line,
- int len,
- unsigned ws_rule)
-{
- unsigned result = ws_check(line + 1, len - 1, ws_rule);
-
- record_ws_error(state, result, line + 1, len - 2, state->linenr);
-}
-
-/*
- * Parse a unified diff. Note that this really needs to parse each
- * fragment separately, since the only way to know the difference
- * between a "---" that is part of a patch, and a "---" that starts
- * the next patch is to look at the line counts..
- */
-static int parse_fragment(struct apply_state *state,
- const char *line,
- unsigned long size,
- struct patch *patch,
- struct fragment *fragment)
-{
- int added, deleted;
- int len = linelen(line, size), offset;
- unsigned long oldlines, newlines;
- unsigned long leading, trailing;
-
- offset = parse_fragment_header(line, len, fragment);
- if (offset < 0)
- return -1;
- if (offset > 0 && patch->recount)
- recount_diff(line + offset, size - offset, fragment);
- oldlines = fragment->oldlines;
- newlines = fragment->newlines;
- leading = 0;
- trailing = 0;
-
- /* Parse the thing.. */
- line += len;
- size -= len;
- state->linenr++;
- added = deleted = 0;
- for (offset = len;
- 0 < size;
- offset += len, size -= len, line += len, state->linenr++) {
- if (!oldlines && !newlines)
- break;
- len = linelen(line, size);
- if (!len || line[len-1] != '\n')
- return -1;
- switch (*line) {
- default:
- return -1;
- case '\n': /* newer GNU diff, an empty context line */
- case ' ':
- oldlines--;
- newlines--;
- if (!deleted && !added)
- leading++;
- trailing++;
- if (!state->apply_in_reverse &&
- state->ws_error_action == correct_ws_error)
- check_whitespace(state, line, len, patch->ws_rule);
- break;
- case '-':
- if (state->apply_in_reverse &&
- state->ws_error_action != nowarn_ws_error)
- check_whitespace(state, line, len, patch->ws_rule);
- deleted++;
- oldlines--;
- trailing = 0;
- break;
- case '+':
- if (!state->apply_in_reverse &&
- state->ws_error_action != nowarn_ws_error)
- check_whitespace(state, line, len, patch->ws_rule);
- added++;
- newlines--;
- trailing = 0;
- break;
-
- /*
- * We allow "\ No newline at end of file". Depending
- * on locale settings when the patch was produced we
- * don't know what this line looks like. The only
- * thing we do know is that it begins with "\ ".
- * Checking for 12 is just for sanity check -- any
- * l10n of "\ No newline..." is at least that long.
- */
- case '\\':
- if (len < 12 || memcmp(line, "\\ ", 2))
- return -1;
- break;
- }
- }
- if (oldlines || newlines)
- return -1;
- if (!deleted && !added)
- return -1;
-
- fragment->leading = leading;
- fragment->trailing = trailing;
-
- /*
- * If a fragment ends with an incomplete line, we failed to include
- * it in the above loop because we hit oldlines == newlines == 0
- * before seeing it.
- */
- if (12 < size && !memcmp(line, "\\ ", 2))
- offset += linelen(line, size);
-
- patch->lines_added += added;
- patch->lines_deleted += deleted;
-
- if (0 < patch->is_new && oldlines)
- return error(_("new file depends on old contents"));
- if (0 < patch->is_delete && newlines)
- return error(_("deleted file still has contents"));
- return offset;
-}
-
-/*
- * We have seen "diff --git a/... b/..." header (or a traditional patch
- * header). Read hunks that belong to this patch into fragments and hang
- * them to the given patch structure.
- *
- * The (fragment->patch, fragment->size) pair points into the memory given
- * by the caller, not a copy, when we return.
- */
-static int parse_single_patch(struct apply_state *state,
- const char *line,
- unsigned long size,
- struct patch *patch)
-{
- unsigned long offset = 0;
- unsigned long oldlines = 0, newlines = 0, context = 0;
- struct fragment **fragp = &patch->fragments;
-
- while (size > 4 && !memcmp(line, "@@ -", 4)) {
- struct fragment *fragment;
- int len;
-
- fragment = xcalloc(1, sizeof(*fragment));
- fragment->linenr = state->linenr;
- len = parse_fragment(state, line, size, patch, fragment);
- if (len <= 0)
- die(_("corrupt patch at line %d"), state->linenr);
- fragment->patch = line;
- fragment->size = len;
- oldlines += fragment->oldlines;
- newlines += fragment->newlines;
- context += fragment->leading + fragment->trailing;
-
- *fragp = fragment;
- fragp = &fragment->next;
-
- offset += len;
- line += len;
- size -= len;
- }
-
- /*
- * If something was removed (i.e. we have old-lines) it cannot
- * be creation, and if something was added it cannot be
- * deletion. However, the reverse is not true; --unified=0
- * patches that only add are not necessarily creation even
- * though they do not have any old lines, and ones that only
- * delete are not necessarily deletion.
- *
- * Unfortunately, a real creation/deletion patch do _not_ have
- * any context line by definition, so we cannot safely tell it
- * apart with --unified=0 insanity. At least if the patch has
- * more than one hunk it is not creation or deletion.
- */
- if (patch->is_new < 0 &&
- (oldlines || (patch->fragments && patch->fragments->next)))
- patch->is_new = 0;
- if (patch->is_delete < 0 &&
- (newlines || (patch->fragments && patch->fragments->next)))
- patch->is_delete = 0;
-
- if (0 < patch->is_new && oldlines)
- die(_("new file %s depends on old contents"), patch->new_name);
- if (0 < patch->is_delete && newlines)
- die(_("deleted file %s still has contents"), patch->old_name);
- if (!patch->is_delete && !newlines && context)
- fprintf_ln(stderr,
- _("** warning: "
- "file %s becomes empty but is not deleted"),
- patch->new_name);
-
- return offset;
-}
-
-static inline int metadata_changes(struct patch *patch)
-{
- return patch->is_rename > 0 ||
- patch->is_copy > 0 ||
- patch->is_new > 0 ||
- patch->is_delete ||
- (patch->old_mode && patch->new_mode &&
- patch->old_mode != patch->new_mode);
-}
-
-static char *inflate_it(const void *data, unsigned long size,
- unsigned long inflated_size)
-{
- git_zstream stream;
- void *out;
- int st;
-
- memset(&stream, 0, sizeof(stream));
-
- stream.next_in = (unsigned char *)data;
- stream.avail_in = size;
- stream.next_out = out = xmalloc(inflated_size);
- stream.avail_out = inflated_size;
- git_inflate_init(&stream);
- st = git_inflate(&stream, Z_FINISH);
- git_inflate_end(&stream);
- if ((st != Z_STREAM_END) || stream.total_out != inflated_size) {
- free(out);
- return NULL;
- }
- return out;
-}
-
-/*
- * Read a binary hunk and return a new fragment; fragment->patch
- * points at an allocated memory that the caller must free, so
- * it is marked as "->free_patch = 1".
- */
-static struct fragment *parse_binary_hunk(struct apply_state *state,
- char **buf_p,
- unsigned long *sz_p,
- int *status_p,
- int *used_p)
-{
- /*
- * Expect a line that begins with binary patch method ("literal"
- * or "delta"), followed by the length of data before deflating.
- * a sequence of 'length-byte' followed by base-85 encoded data
- * should follow, terminated by a newline.
- *
- * Each 5-byte sequence of base-85 encodes up to 4 bytes,
- * and we would limit the patch line to 66 characters,
- * so one line can fit up to 13 groups that would decode
- * to 52 bytes max. The length byte 'A'-'Z' corresponds
- * to 1-26 bytes, and 'a'-'z' corresponds to 27-52 bytes.
- */
- int llen, used;
- unsigned long size = *sz_p;
- char *buffer = *buf_p;
- int patch_method;
- unsigned long origlen;
- char *data = NULL;
- int hunk_size = 0;
- struct fragment *frag;
-
- llen = linelen(buffer, size);
- used = llen;
-
- *status_p = 0;
-
- if (starts_with(buffer, "delta ")) {
- patch_method = BINARY_DELTA_DEFLATED;
- origlen = strtoul(buffer + 6, NULL, 10);
- }
- else if (starts_with(buffer, "literal ")) {
- patch_method = BINARY_LITERAL_DEFLATED;
- origlen = strtoul(buffer + 8, NULL, 10);
- }
- else
- return NULL;
-
- state->linenr++;
- buffer += llen;
- while (1) {
- int byte_length, max_byte_length, newsize;
- llen = linelen(buffer, size);
- used += llen;
- state->linenr++;
- if (llen == 1) {
- /* consume the blank line */
- buffer++;
- size--;
- break;
- }
- /*
- * Minimum line is "A00000\n" which is 7-byte long,
- * and the line length must be multiple of 5 plus 2.
- */
- if ((llen < 7) || (llen-2) % 5)
- goto corrupt;
- max_byte_length = (llen - 2) / 5 * 4;
- byte_length = *buffer;
- if ('A' <= byte_length && byte_length <= 'Z')
- byte_length = byte_length - 'A' + 1;
- else if ('a' <= byte_length && byte_length <= 'z')
- byte_length = byte_length - 'a' + 27;
- else
- goto corrupt;
- /* if the input length was not multiple of 4, we would
- * have filler at the end but the filler should never
- * exceed 3 bytes
- */
- if (max_byte_length < byte_length ||
- byte_length <= max_byte_length - 4)
- goto corrupt;
- newsize = hunk_size + byte_length;
- data = xrealloc(data, newsize);
- if (decode_85(data + hunk_size, buffer + 1, byte_length))
- goto corrupt;
- hunk_size = newsize;
- buffer += llen;
- size -= llen;
- }
-
- frag = xcalloc(1, sizeof(*frag));
- frag->patch = inflate_it(data, hunk_size, origlen);
- frag->free_patch = 1;
- if (!frag->patch)
- goto corrupt;
- free(data);
- frag->size = origlen;
- *buf_p = buffer;
- *sz_p = size;
- *used_p = used;
- frag->binary_patch_method = patch_method;
- return frag;
-
- corrupt:
- free(data);
- *status_p = -1;
- error(_("corrupt binary patch at line %d: %.*s"),
- state->linenr-1, llen-1, buffer);
- return NULL;
-}
-
-/*
- * Returns:
- * -1 in case of error,
- * the length of the parsed binary patch otherwise
- */
-static int parse_binary(struct apply_state *state,
- char *buffer,
- unsigned long size,
- struct patch *patch)
-{
- /*
- * We have read "GIT binary patch\n"; what follows is a line
- * that says the patch method (currently, either "literal" or
- * "delta") and the length of data before deflating; a
- * sequence of 'length-byte' followed by base-85 encoded data
- * follows.
- *
- * When a binary patch is reversible, there is another binary
- * hunk in the same format, starting with patch method (either
- * "literal" or "delta") with the length of data, and a sequence
- * of length-byte + base-85 encoded data, terminated with another
- * empty line. This data, when applied to the postimage, produces
- * the preimage.
- */
- struct fragment *forward;
- struct fragment *reverse;
- int status;
- int used, used_1;
-
- forward = parse_binary_hunk(state, &buffer, &size, &status, &used);
- if (!forward && !status)
- /* there has to be one hunk (forward hunk) */
- return error(_("unrecognized binary patch at line %d"), state->linenr-1);
- if (status)
- /* otherwise we already gave an error message */
- return status;
-
- reverse = parse_binary_hunk(state, &buffer, &size, &status, &used_1);
- if (reverse)
- used += used_1;
- else if (status) {
- /*
- * Not having reverse hunk is not an error, but having
- * a corrupt reverse hunk is.
- */
- free((void*) forward->patch);
- free(forward);
- return status;
- }
- forward->next = reverse;
- patch->fragments = forward;
- patch->is_binary = 1;
- return used;
-}
-
-static void prefix_one(struct apply_state *state, char **name)
-{
- char *old_name = *name;
- if (!old_name)
- return;
- *name = xstrdup(prefix_filename(state->prefix, state->prefix_length, *name));
- free(old_name);
-}
-
-static void prefix_patch(struct apply_state *state, struct patch *p)
-{
- if (!state->prefix || p->is_toplevel_relative)
- return;
- prefix_one(state, &p->new_name);
- prefix_one(state, &p->old_name);
-}
-
-/*
- * include/exclude
- */
-
-static void add_name_limit(struct apply_state *state,
- const char *name,
- int exclude)
-{
- struct string_list_item *it;
-
- it = string_list_append(&state->limit_by_name, name);
- it->util = exclude ? NULL : (void *) 1;
-}
-
-static int use_patch(struct apply_state *state, struct patch *p)
-{
- const char *pathname = p->new_name ? p->new_name : p->old_name;
- int i;
-
- /* Paths outside are not touched regardless of "--include" */
- if (0 < state->prefix_length) {
- int pathlen = strlen(pathname);
- if (pathlen <= state->prefix_length ||
- memcmp(state->prefix, pathname, state->prefix_length))
- return 0;
- }
-
- /* See if it matches any of exclude/include rule */
- for (i = 0; i < state->limit_by_name.nr; i++) {
- struct string_list_item *it = &state->limit_by_name.items[i];
- if (!wildmatch(it->string, pathname, 0, NULL))
- return (it->util != NULL);
- }
-
- /*
- * If we had any include, a path that does not match any rule is
- * not used. Otherwise, we saw bunch of exclude rules (or none)
- * and such a path is used.
- */
- return !state->has_include;
-}
-
-
-/*
- * Read the patch text in "buffer" that extends for "size" bytes; stop
- * reading after seeing a single patch (i.e. changes to a single file).
- * Create fragments (i.e. patch hunks) and hang them to the given patch.
- * Return the number of bytes consumed, so that the caller can call us
- * again for the next patch.
- */
-static int parse_chunk(struct apply_state *state, char *buffer, unsigned long size, struct patch *patch)
-{
- int hdrsize, patchsize;
- int offset = find_header(state, buffer, size, &hdrsize, patch);
-
- if (offset < 0)
- return offset;
-
- prefix_patch(state, patch);
-
- if (!use_patch(state, patch))
- patch->ws_rule = 0;
- else
- patch->ws_rule = whitespace_rule(patch->new_name
- ? patch->new_name
- : patch->old_name);
-
- patchsize = parse_single_patch(state,
- buffer + offset + hdrsize,
- size - offset - hdrsize,
- patch);
-
- if (!patchsize) {
- static const char git_binary[] = "GIT binary patch\n";
- int hd = hdrsize + offset;
- unsigned long llen = linelen(buffer + hd, size - hd);
-
- if (llen == sizeof(git_binary) - 1 &&
- !memcmp(git_binary, buffer + hd, llen)) {
- int used;
- state->linenr++;
- used = parse_binary(state, buffer + hd + llen,
- size - hd - llen, patch);
- if (used < 0)
- return -1;
- if (used)
- patchsize = used + llen;
- else
- patchsize = 0;
- }
- else if (!memcmp(" differ\n", buffer + hd + llen - 8, 8)) {
- static const char *binhdr[] = {
- "Binary files ",
- "Files ",
- NULL,
- };
- int i;
- for (i = 0; binhdr[i]; i++) {
- int len = strlen(binhdr[i]);
- if (len < size - hd &&
- !memcmp(binhdr[i], buffer + hd, len)) {
- state->linenr++;
- patch->is_binary = 1;
- patchsize = llen;
- break;
- }
- }
- }
-
- /* Empty patch cannot be applied if it is a text patch
- * without metadata change. A binary patch appears
- * empty to us here.
- */
- if ((state->apply || state->check) &&
- (!patch->is_binary && !metadata_changes(patch)))
- die(_("patch with only garbage at line %d"), state->linenr);
- }
-
- return offset + hdrsize + patchsize;
-}
-
-#define swap(a,b) myswap((a),(b),sizeof(a))
-
-#define myswap(a, b, size) do { \
- unsigned char mytmp[size]; \
- memcpy(mytmp, &a, size); \
- memcpy(&a, &b, size); \
- memcpy(&b, mytmp, size); \
-} while (0)
-
-static void reverse_patches(struct patch *p)
-{
- for (; p; p = p->next) {
- struct fragment *frag = p->fragments;
-
- swap(p->new_name, p->old_name);
- swap(p->new_mode, p->old_mode);
- swap(p->is_new, p->is_delete);
- swap(p->lines_added, p->lines_deleted);
- swap(p->old_sha1_prefix, p->new_sha1_prefix);
-
- for (; frag; frag = frag->next) {
- swap(frag->newpos, frag->oldpos);
- swap(frag->newlines, frag->oldlines);
- }
- }
-}
-
-static const char pluses[] =
-"++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++";
-static const char minuses[]=
-"----------------------------------------------------------------------";
-
-static void show_stats(struct apply_state *state, struct patch *patch)
-{
- struct strbuf qname = STRBUF_INIT;
- char *cp = patch->new_name ? patch->new_name : patch->old_name;
- int max, add, del;
-
- quote_c_style(cp, &qname, NULL, 0);
-
- /*
- * "scale" the filename
- */
- max = state->max_len;
- if (max > 50)
- max = 50;
-
- if (qname.len > max) {
- cp = strchr(qname.buf + qname.len + 3 - max, '/');
- if (!cp)
- cp = qname.buf + qname.len + 3 - max;
- strbuf_splice(&qname, 0, cp - qname.buf, "...", 3);
- }
-
- if (patch->is_binary) {
- printf(" %-*s | Bin\n", max, qname.buf);
- strbuf_release(&qname);
- return;
- }
-
- printf(" %-*s |", max, qname.buf);
- strbuf_release(&qname);
-
- /*
- * scale the add/delete
- */
- max = max + state->max_change > 70 ? 70 - max : state->max_change;
- add = patch->lines_added;
- del = patch->lines_deleted;
-
- if (state->max_change > 0) {
- int total = ((add + del) * max + state->max_change / 2) / state->max_change;
- add = (add * max + state->max_change / 2) / state->max_change;
- del = total - add;
- }
- printf("%5d %.*s%.*s\n", patch->lines_added + patch->lines_deleted,
- add, pluses, del, minuses);
-}
-
-static int read_old_data(struct stat *st, const char *path, struct strbuf *buf)
-{
- switch (st->st_mode & S_IFMT) {
- case S_IFLNK:
- if (strbuf_readlink(buf, path, st->st_size) < 0)
- return error(_("unable to read symlink %s"), path);
- return 0;
- case S_IFREG:
- if (strbuf_read_file(buf, path, st->st_size) != st->st_size)
- return error(_("unable to open or read %s"), path);
- convert_to_git(path, buf->buf, buf->len, buf, 0);
- return 0;
- default:
- return -1;
- }
-}
-
-/*
- * Update the preimage, and the common lines in postimage,
- * from buffer buf of length len. If postlen is 0 the postimage
- * is updated in place, otherwise it's updated on a new buffer
- * of length postlen
- */
-
-static void update_pre_post_images(struct image *preimage,
- struct image *postimage,
- char *buf,
- size_t len, size_t postlen)
-{
- int i, ctx, reduced;
- char *new, *old, *fixed;
- struct image fixed_preimage;
-
- /*
- * Update the preimage with whitespace fixes. Note that we
- * are not losing preimage->buf -- apply_one_fragment() will
- * free "oldlines".
- */
- prepare_image(&fixed_preimage, buf, len, 1);
- assert(postlen
- ? fixed_preimage.nr == preimage->nr
- : fixed_preimage.nr <= preimage->nr);
- for (i = 0; i < fixed_preimage.nr; i++)
- fixed_preimage.line[i].flag = preimage->line[i].flag;
- free(preimage->line_allocated);
- *preimage = fixed_preimage;
-
- /*
- * Adjust the common context lines in postimage. This can be
- * done in-place when we are shrinking it with whitespace
- * fixing, but needs a new buffer when ignoring whitespace or
- * expanding leading tabs to spaces.
- *
- * We trust the caller to tell us if the update can be done
- * in place (postlen==0) or not.
- */
- old = postimage->buf;
- if (postlen)
- new = postimage->buf = xmalloc(postlen);
- else
- new = old;
- fixed = preimage->buf;
-
- for (i = reduced = ctx = 0; i < postimage->nr; i++) {
- size_t l_len = postimage->line[i].len;
- if (!(postimage->line[i].flag & LINE_COMMON)) {
- /* an added line -- no counterparts in preimage */
- memmove(new, old, l_len);
- old += l_len;
- new += l_len;
- continue;
- }
-
- /* a common context -- skip it in the original postimage */
- old += l_len;
-
- /* and find the corresponding one in the fixed preimage */
- while (ctx < preimage->nr &&
- !(preimage->line[ctx].flag & LINE_COMMON)) {
- fixed += preimage->line[ctx].len;
- ctx++;
- }
-
- /*
- * preimage is expected to run out, if the caller
- * fixed addition of trailing blank lines.
- */
- if (preimage->nr <= ctx) {
- reduced++;
- continue;
- }
-
- /* and copy it in, while fixing the line length */
- l_len = preimage->line[ctx].len;
- memcpy(new, fixed, l_len);
- new += l_len;
- fixed += l_len;
- postimage->line[i].len = l_len;
- ctx++;
- }
-
- if (postlen
- ? postlen < new - postimage->buf
- : postimage->len < new - postimage->buf)
- die("BUG: caller miscounted postlen: asked %d, orig = %d, used = %d",
- (int)postlen, (int) postimage->len, (int)(new - postimage->buf));
-
- /* Fix the length of the whole thing */
- postimage->len = new - postimage->buf;
- postimage->nr -= reduced;
-}
-
-static int line_by_line_fuzzy_match(struct image *img,
- struct image *preimage,
- struct image *postimage,
- unsigned long try,
- int try_lno,
- int preimage_limit)
-{
- int i;
- size_t imgoff = 0;
- size_t preoff = 0;
- size_t postlen = postimage->len;
- size_t extra_chars;
- char *buf;
- char *preimage_eof;
- char *preimage_end;
- struct strbuf fixed;
- char *fixed_buf;
- size_t fixed_len;
-
- for (i = 0; i < preimage_limit; i++) {
- size_t prelen = preimage->line[i].len;
- size_t imglen = img->line[try_lno+i].len;
-
- if (!fuzzy_matchlines(img->buf + try + imgoff, imglen,
- preimage->buf + preoff, prelen))
- return 0;
- if (preimage->line[i].flag & LINE_COMMON)
- postlen += imglen - prelen;
- imgoff += imglen;
- preoff += prelen;
- }
-
- /*
- * Ok, the preimage matches with whitespace fuzz.
- *
- * imgoff now holds the true length of the target that
- * matches the preimage before the end of the file.
- *
- * Count the number of characters in the preimage that fall
- * beyond the end of the file and make sure that all of them
- * are whitespace characters. (This can only happen if
- * we are removing blank lines at the end of the file.)
- */
- buf = preimage_eof = preimage->buf + preoff;
- for ( ; i < preimage->nr; i++)
- preoff += preimage->line[i].len;
- preimage_end = preimage->buf + preoff;
- for ( ; buf < preimage_end; buf++)
- if (!isspace(*buf))
- return 0;
-
- /*
- * Update the preimage and the common postimage context
- * lines to use the same whitespace as the target.
- * If whitespace is missing in the target (i.e.
- * if the preimage extends beyond the end of the file),
- * use the whitespace from the preimage.
- */
- extra_chars = preimage_end - preimage_eof;
- strbuf_init(&fixed, imgoff + extra_chars);
- strbuf_add(&fixed, img->buf + try, imgoff);
- strbuf_add(&fixed, preimage_eof, extra_chars);
- fixed_buf = strbuf_detach(&fixed, &fixed_len);
- update_pre_post_images(preimage, postimage,
- fixed_buf, fixed_len, postlen);
- return 1;
-}
-
-static int match_fragment(struct apply_state *state,
- struct image *img,
- struct image *preimage,
- struct image *postimage,
- unsigned long try,
- int try_lno,
- unsigned ws_rule,
- int match_beginning, int match_end)
-{
- int i;
- char *fixed_buf, *buf, *orig, *target;
- struct strbuf fixed;
- size_t fixed_len, postlen;
- int preimage_limit;
-
- if (preimage->nr + try_lno <= img->nr) {
- /*
- * The hunk falls within the boundaries of img.
- */
- preimage_limit = preimage->nr;
- if (match_end && (preimage->nr + try_lno != img->nr))
- return 0;
- } else if (state->ws_error_action == correct_ws_error &&
- (ws_rule & WS_BLANK_AT_EOF)) {
- /*
- * This hunk extends beyond the end of img, and we are
- * removing blank lines at the end of the file. This
- * many lines from the beginning of the preimage must
- * match with img, and the remainder of the preimage
- * must be blank.
- */
- preimage_limit = img->nr - try_lno;
- } else {
- /*
- * The hunk extends beyond the end of the img and
- * we are not removing blanks at the end, so we
- * should reject the hunk at this position.
- */
- return 0;
- }
-
- if (match_beginning && try_lno)
- return 0;
-
- /* Quick hash check */
- for (i = 0; i < preimage_limit; i++)
- if ((img->line[try_lno + i].flag & LINE_PATCHED) ||
- (preimage->line[i].hash != img->line[try_lno + i].hash))
- return 0;
-
- if (preimage_limit == preimage->nr) {
- /*
- * Do we have an exact match? If we were told to match
- * at the end, size must be exactly at try+fragsize,
- * otherwise try+fragsize must be still within the preimage,
- * and either case, the old piece should match the preimage
- * exactly.
- */
- if ((match_end
- ? (try + preimage->len == img->len)
- : (try + preimage->len <= img->len)) &&
- !memcmp(img->buf + try, preimage->buf, preimage->len))
- return 1;
- } else {
- /*
- * The preimage extends beyond the end of img, so
- * there cannot be an exact match.
- *
- * There must be one non-blank context line that match
- * a line before the end of img.
- */
- char *buf_end;
-
- buf = preimage->buf;
- buf_end = buf;
- for (i = 0; i < preimage_limit; i++)
- buf_end += preimage->line[i].len;
-
- for ( ; buf < buf_end; buf++)
- if (!isspace(*buf))
- break;
- if (buf == buf_end)
- return 0;
- }
-
- /*
- * No exact match. If we are ignoring whitespace, run a line-by-line
- * fuzzy matching. We collect all the line length information because
- * we need it to adjust whitespace if we match.
- */
- if (state->ws_ignore_action == ignore_ws_change)
- return line_by_line_fuzzy_match(img, preimage, postimage,
- try, try_lno, preimage_limit);
-
- if (state->ws_error_action != correct_ws_error)
- return 0;
-
- /*
- * The hunk does not apply byte-by-byte, but the hash says
- * it might with whitespace fuzz. We weren't asked to
- * ignore whitespace, we were asked to correct whitespace
- * errors, so let's try matching after whitespace correction.
- *
- * While checking the preimage against the target, whitespace
- * errors in both fixed, we count how large the corresponding
- * postimage needs to be. The postimage prepared by
- * apply_one_fragment() has whitespace errors fixed on added
- * lines already, but the common lines were propagated as-is,
- * which may become longer when their whitespace errors are
- * fixed.
- */
-
- /* First count added lines in postimage */
- postlen = 0;
- for (i = 0; i < postimage->nr; i++) {
- if (!(postimage->line[i].flag & LINE_COMMON))
- postlen += postimage->line[i].len;
- }
-
- /*
- * The preimage may extend beyond the end of the file,
- * but in this loop we will only handle the part of the
- * preimage that falls within the file.
- */
- strbuf_init(&fixed, preimage->len + 1);
- orig = preimage->buf;
- target = img->buf + try;
- for (i = 0; i < preimage_limit; i++) {
- size_t oldlen = preimage->line[i].len;
- size_t tgtlen = img->line[try_lno + i].len;
- size_t fixstart = fixed.len;
- struct strbuf tgtfix;
- int match;
-
- /* Try fixing the line in the preimage */
- ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL);
-
- /* Try fixing the line in the target */
- strbuf_init(&tgtfix, tgtlen);
- ws_fix_copy(&tgtfix, target, tgtlen, ws_rule, NULL);
-
- /*
- * If they match, either the preimage was based on
- * a version before our tree fixed whitespace breakage,
- * or we are lacking a whitespace-fix patch the tree
- * the preimage was based on already had (i.e. target
- * has whitespace breakage, the preimage doesn't).
- * In either case, we are fixing the whitespace breakages
- * so we might as well take the fix together with their
- * real change.
- */
- match = (tgtfix.len == fixed.len - fixstart &&
- !memcmp(tgtfix.buf, fixed.buf + fixstart,
- fixed.len - fixstart));
-
- /* Add the length if this is common with the postimage */
- if (preimage->line[i].flag & LINE_COMMON)
- postlen += tgtfix.len;
-
- strbuf_release(&tgtfix);
- if (!match)
- goto unmatch_exit;
-
- orig += oldlen;
- target += tgtlen;
- }
-
-
- /*
- * Now handle the lines in the preimage that falls beyond the
- * end of the file (if any). They will only match if they are
- * empty or only contain whitespace (if WS_BLANK_AT_EOL is
- * false).
- */
- for ( ; i < preimage->nr; i++) {
- size_t fixstart = fixed.len; /* start of the fixed preimage */
- size_t oldlen = preimage->line[i].len;
- int j;
-
- /* Try fixing the line in the preimage */
- ws_fix_copy(&fixed, orig, oldlen, ws_rule, NULL);
-
- for (j = fixstart; j < fixed.len; j++)
- if (!isspace(fixed.buf[j]))
- goto unmatch_exit;
-
- orig += oldlen;
- }
-
- /*
- * Yes, the preimage is based on an older version that still
- * has whitespace breakages unfixed, and fixing them makes the
- * hunk match. Update the context lines in the postimage.
- */
- fixed_buf = strbuf_detach(&fixed, &fixed_len);
- if (postlen < postimage->len)
- postlen = 0;
- update_pre_post_images(preimage, postimage,
- fixed_buf, fixed_len, postlen);
- return 1;
-
- unmatch_exit:
- strbuf_release(&fixed);
- return 0;
-}
-
-static int find_pos(struct apply_state *state,
- struct image *img,
- struct image *preimage,
- struct image *postimage,
- int line,
- unsigned ws_rule,
- int match_beginning, int match_end)
-{
- int i;
- unsigned long backwards, forwards, try;
- int backwards_lno, forwards_lno, try_lno;
-
- /*
- * If match_beginning or match_end is specified, there is no
- * point starting from a wrong line that will never match and
- * wander around and wait for a match at the specified end.
- */
- if (match_beginning)
- line = 0;
- else if (match_end)
- line = img->nr - preimage->nr;
-
- /*
- * Because the comparison is unsigned, the following test
- * will also take care of a negative line number that can
- * result when match_end and preimage is larger than the target.
- */
- if ((size_t) line > img->nr)
- line = img->nr;
-
- try = 0;
- for (i = 0; i < line; i++)
- try += img->line[i].len;
-
- /*
- * There's probably some smart way to do this, but I'll leave
- * that to the smart and beautiful people. I'm simple and stupid.
- */
- backwards = try;
- backwards_lno = line;
- forwards = try;
- forwards_lno = line;
- try_lno = line;
-
- for (i = 0; ; i++) {
- if (match_fragment(state, img, preimage, postimage,
- try, try_lno, ws_rule,
- match_beginning, match_end))
- return try_lno;
-
- again:
- if (backwards_lno == 0 && forwards_lno == img->nr)
- break;
-
- if (i & 1) {
- if (backwards_lno == 0) {
- i++;
- goto again;
- }
- backwards_lno--;
- backwards -= img->line[backwards_lno].len;
- try = backwards;
- try_lno = backwards_lno;
- } else {
- if (forwards_lno == img->nr) {
- i++;
- goto again;
- }
- forwards += img->line[forwards_lno].len;
- forwards_lno++;
- try = forwards;
- try_lno = forwards_lno;
- }
-
- }
- return -1;
-}
-
-static void remove_first_line(struct image *img)
-{
- img->buf += img->line[0].len;
- img->len -= img->line[0].len;
- img->line++;
- img->nr--;
-}
-
-static void remove_last_line(struct image *img)
-{
- img->len -= img->line[--img->nr].len;
-}
-
-/*
- * The change from "preimage" and "postimage" has been found to
- * apply at applied_pos (counts in line numbers) in "img".
- * Update "img" to remove "preimage" and replace it with "postimage".
- */
-static void update_image(struct apply_state *state,
- struct image *img,
- int applied_pos,
- struct image *preimage,
- struct image *postimage)
-{
- /*
- * remove the copy of preimage at offset in img
- * and replace it with postimage
- */
- int i, nr;
- size_t remove_count, insert_count, applied_at = 0;
- char *result;
- int preimage_limit;
-
- /*
- * If we are removing blank lines at the end of img,
- * the preimage may extend beyond the end.
- * If that is the case, we must be careful only to
- * remove the part of the preimage that falls within
- * the boundaries of img. Initialize preimage_limit
- * to the number of lines in the preimage that falls
- * within the boundaries.
- */
- preimage_limit = preimage->nr;
- if (preimage_limit > img->nr - applied_pos)
- preimage_limit = img->nr - applied_pos;
-
- for (i = 0; i < applied_pos; i++)
- applied_at += img->line[i].len;
-
- remove_count = 0;
- for (i = 0; i < preimage_limit; i++)
- remove_count += img->line[applied_pos + i].len;
- insert_count = postimage->len;
-
- /* Adjust the contents */
- result = xmalloc(st_add3(st_sub(img->len, remove_count), insert_count, 1));
- memcpy(result, img->buf, applied_at);
- memcpy(result + applied_at, postimage->buf, postimage->len);
- memcpy(result + applied_at + postimage->len,
- img->buf + (applied_at + remove_count),
- img->len - (applied_at + remove_count));
- free(img->buf);
- img->buf = result;
- img->len += insert_count - remove_count;
- result[img->len] = '\0';
-
- /* Adjust the line table */
- nr = img->nr + postimage->nr - preimage_limit;
- if (preimage_limit < postimage->nr) {
- /*
- * NOTE: this knows that we never call remove_first_line()
- * on anything other than pre/post image.
- */
- REALLOC_ARRAY(img->line, nr);
- img->line_allocated = img->line;
- }
- if (preimage_limit != postimage->nr)
- memmove(img->line + applied_pos + postimage->nr,
- img->line + applied_pos + preimage_limit,
- (img->nr - (applied_pos + preimage_limit)) *
- sizeof(*img->line));
- memcpy(img->line + applied_pos,
- postimage->line,
- postimage->nr * sizeof(*img->line));
- if (!state->allow_overlap)
- for (i = 0; i < postimage->nr; i++)
- img->line[applied_pos + i].flag |= LINE_PATCHED;
- img->nr = nr;
-}
-
-/*
- * Use the patch-hunk text in "frag" to prepare two images (preimage and
- * postimage) for the hunk. Find lines that match "preimage" in "img" and
- * replace the part of "img" with "postimage" text.
- */
-static int apply_one_fragment(struct apply_state *state,
- struct image *img, struct fragment *frag,
- int inaccurate_eof, unsigned ws_rule,
- int nth_fragment)
-{
- int match_beginning, match_end;
- const char *patch = frag->patch;
- int size = frag->size;
- char *old, *oldlines;
- struct strbuf newlines;
- int new_blank_lines_at_end = 0;
- int found_new_blank_lines_at_end = 0;
- int hunk_linenr = frag->linenr;
- unsigned long leading, trailing;
- int pos, applied_pos;
- struct image preimage;
- struct image postimage;
-
- memset(&preimage, 0, sizeof(preimage));
- memset(&postimage, 0, sizeof(postimage));
- oldlines = xmalloc(size);
- strbuf_init(&newlines, size);
-
- old = oldlines;
- while (size > 0) {
- char first;
- int len = linelen(patch, size);
- int plen;
- int added_blank_line = 0;
- int is_blank_context = 0;
- size_t start;
-
- if (!len)
- break;
-
- /*
- * "plen" is how much of the line we should use for
- * the actual patch data. Normally we just remove the
- * first character on the line, but if the line is
- * followed by "\ No newline", then we also remove the
- * last one (which is the newline, of course).
- */
- plen = len - 1;
- if (len < size && patch[len] == '\\')
- plen--;
- first = *patch;
- if (state->apply_in_reverse) {
- if (first == '-')
- first = '+';
- else if (first == '+')
- first = '-';
- }
-
- switch (first) {
- case '\n':
- /* Newer GNU diff, empty context line */
- if (plen < 0)
- /* ... followed by '\No newline'; nothing */
- break;
- *old++ = '\n';
- strbuf_addch(&newlines, '\n');
- add_line_info(&preimage, "\n", 1, LINE_COMMON);
- add_line_info(&postimage, "\n", 1, LINE_COMMON);
- is_blank_context = 1;
- break;
- case ' ':
- if (plen && (ws_rule & WS_BLANK_AT_EOF) &&
- ws_blank_line(patch + 1, plen, ws_rule))
- is_blank_context = 1;
- case '-':
- memcpy(old, patch + 1, plen);
- add_line_info(&preimage, old, plen,
- (first == ' ' ? LINE_COMMON : 0));
- old += plen;
- if (first == '-')
- break;
- /* Fall-through for ' ' */
- case '+':
- /* --no-add does not add new lines */
- if (first == '+' && state->no_add)
- break;
-
- start = newlines.len;
- if (first != '+' ||
- !state->whitespace_error ||
- state->ws_error_action != correct_ws_error) {
- strbuf_add(&newlines, patch + 1, plen);
- }
- else {
- ws_fix_copy(&newlines, patch + 1, plen, ws_rule, &state->applied_after_fixing_ws);
- }
- add_line_info(&postimage, newlines.buf + start, newlines.len - start,
- (first == '+' ? 0 : LINE_COMMON));
- if (first == '+' &&
- (ws_rule & WS_BLANK_AT_EOF) &&
- ws_blank_line(patch + 1, plen, ws_rule))
- added_blank_line = 1;
- break;
- case '@': case '\\':
- /* Ignore it, we already handled it */
- break;
- default:
- if (state->apply_verbosely)
- error(_("invalid start of line: '%c'"), first);
- applied_pos = -1;
- goto out;
- }
- if (added_blank_line) {
- if (!new_blank_lines_at_end)
- found_new_blank_lines_at_end = hunk_linenr;
- new_blank_lines_at_end++;
- }
- else if (is_blank_context)
- ;
- else
- new_blank_lines_at_end = 0;
- patch += len;
- size -= len;
- hunk_linenr++;
- }
- if (inaccurate_eof &&
- old > oldlines && old[-1] == '\n' &&
- newlines.len > 0 && newlines.buf[newlines.len - 1] == '\n') {
- old--;
- strbuf_setlen(&newlines, newlines.len - 1);
- }
-
- leading = frag->leading;
- trailing = frag->trailing;
-
- /*
- * A hunk to change lines at the beginning would begin with
- * @@ -1,L +N,M @@
- * but we need to be careful. -U0 that inserts before the second
- * line also has this pattern.
- *
- * And a hunk to add to an empty file would begin with
- * @@ -0,0 +N,M @@
- *
- * In other words, a hunk that is (frag->oldpos <= 1) with or
- * without leading context must match at the beginning.
- */
- match_beginning = (!frag->oldpos ||
- (frag->oldpos == 1 && !state->unidiff_zero));
-
- /*
- * A hunk without trailing lines must match at the end.
- * However, we simply cannot tell if a hunk must match end
- * from the lack of trailing lines if the patch was generated
- * with unidiff without any context.
- */
- match_end = !state->unidiff_zero && !trailing;
-
- pos = frag->newpos ? (frag->newpos - 1) : 0;
- preimage.buf = oldlines;
- preimage.len = old - oldlines;
- postimage.buf = newlines.buf;
- postimage.len = newlines.len;
- preimage.line = preimage.line_allocated;
- postimage.line = postimage.line_allocated;
-
- for (;;) {
-
- applied_pos = find_pos(state, img, &preimage, &postimage, pos,
- ws_rule, match_beginning, match_end);
-
- if (applied_pos >= 0)
- break;
-
- /* Am I at my context limits? */
- if ((leading <= state->p_context) && (trailing <= state->p_context))
- break;
- if (match_beginning || match_end) {
- match_beginning = match_end = 0;
- continue;
- }
-
- /*
- * Reduce the number of context lines; reduce both
- * leading and trailing if they are equal otherwise
- * just reduce the larger context.
- */
- if (leading >= trailing) {
- remove_first_line(&preimage);
- remove_first_line(&postimage);
- pos--;
- leading--;
- }
- if (trailing > leading) {
- remove_last_line(&preimage);
- remove_last_line(&postimage);
- trailing--;
- }
- }
-
- if (applied_pos >= 0) {
- if (new_blank_lines_at_end &&
- preimage.nr + applied_pos >= img->nr &&
- (ws_rule & WS_BLANK_AT_EOF) &&
- state->ws_error_action != nowarn_ws_error) {
- record_ws_error(state, WS_BLANK_AT_EOF, "+", 1,
- found_new_blank_lines_at_end);
- if (state->ws_error_action == correct_ws_error) {
- while (new_blank_lines_at_end--)
- remove_last_line(&postimage);
- }
- /*
- * We would want to prevent write_out_results()
- * from taking place in apply_patch() that follows
- * the callchain led us here, which is:
- * apply_patch->check_patch_list->check_patch->
- * apply_data->apply_fragments->apply_one_fragment
- */
- if (state->ws_error_action == die_on_ws_error)
- state->apply = 0;
- }
-
- if (state->apply_verbosely && applied_pos != pos) {
- int offset = applied_pos - pos;
- if (state->apply_in_reverse)
- offset = 0 - offset;
- fprintf_ln(stderr,
- Q_("Hunk #%d succeeded at %d (offset %d line).",
- "Hunk #%d succeeded at %d (offset %d lines).",
- offset),
- nth_fragment, applied_pos + 1, offset);
- }
-
- /*
- * Warn if it was necessary to reduce the number
- * of context lines.
- */
- if ((leading != frag->leading) ||
- (trailing != frag->trailing))
- fprintf_ln(stderr, _("Context reduced to (%ld/%ld)"
- " to apply fragment at %d"),
- leading, trailing, applied_pos+1);
- update_image(state, img, applied_pos, &preimage, &postimage);
- } else {
- if (state->apply_verbosely)
- error(_("while searching for:\n%.*s"),
- (int)(old - oldlines), oldlines);
- }
-
-out:
- free(oldlines);
- strbuf_release(&newlines);
- free(preimage.line_allocated);
- free(postimage.line_allocated);
-
- return (applied_pos < 0);
-}
-
-static int apply_binary_fragment(struct apply_state *state,
- struct image *img,
- struct patch *patch)
-{
- struct fragment *fragment = patch->fragments;
- unsigned long len;
- void *dst;
-
- if (!fragment)
- return error(_("missing binary patch data for '%s'"),
- patch->new_name ?
- patch->new_name :
- patch->old_name);
-
- /* Binary patch is irreversible without the optional second hunk */
- if (state->apply_in_reverse) {
- if (!fragment->next)
- return error("cannot reverse-apply a binary patch "
- "without the reverse hunk to '%s'",
- patch->new_name
- ? patch->new_name : patch->old_name);
- fragment = fragment->next;
- }
- switch (fragment->binary_patch_method) {
- case BINARY_DELTA_DEFLATED:
- dst = patch_delta(img->buf, img->len, fragment->patch,
- fragment->size, &len);
- if (!dst)
- return -1;
- clear_image(img);
- img->buf = dst;
- img->len = len;
- return 0;
- case BINARY_LITERAL_DEFLATED:
- clear_image(img);
- img->len = fragment->size;
- img->buf = xmemdupz(fragment->patch, img->len);
- return 0;
- }
- return -1;
-}
-
-/*
- * Replace "img" with the result of applying the binary patch.
- * The binary patch data itself in patch->fragment is still kept
- * but the preimage prepared by the caller in "img" is freed here
- * or in the helper function apply_binary_fragment() this calls.
- */
-static int apply_binary(struct apply_state *state,
- struct image *img,
- struct patch *patch)
-{
- const char *name = patch->old_name ? patch->old_name : patch->new_name;
- unsigned char sha1[20];
-
- /*
- * For safety, we require patch index line to contain
- * full 40-byte textual SHA1 for old and new, at least for now.
- */
- if (strlen(patch->old_sha1_prefix) != 40 ||
- strlen(patch->new_sha1_prefix) != 40 ||
- get_sha1_hex(patch->old_sha1_prefix, sha1) ||
- get_sha1_hex(patch->new_sha1_prefix, sha1))
- return error("cannot apply binary patch to '%s' "
- "without full index line", name);
-
- if (patch->old_name) {
- /*
- * See if the old one matches what the patch
- * applies to.
- */
- hash_sha1_file(img->buf, img->len, blob_type, sha1);
- if (strcmp(sha1_to_hex(sha1), patch->old_sha1_prefix))
- return error("the patch applies to '%s' (%s), "
- "which does not match the "
- "current contents.",
- name, sha1_to_hex(sha1));
- }
- else {
- /* Otherwise, the old one must be empty. */
- if (img->len)
- return error("the patch applies to an empty "
- "'%s' but it is not empty", name);
- }
-
- get_sha1_hex(patch->new_sha1_prefix, sha1);
- if (is_null_sha1(sha1)) {
- clear_image(img);
- return 0; /* deletion patch */
- }
-
- if (has_sha1_file(sha1)) {
- /* We already have the postimage */
- enum object_type type;
- unsigned long size;
- char *result;
-
- result = read_sha1_file(sha1, &type, &size);
- if (!result)
- return error("the necessary postimage %s for "
- "'%s' cannot be read",
- patch->new_sha1_prefix, name);
- clear_image(img);
- img->buf = result;
- img->len = size;
- } else {
- /*
- * We have verified buf matches the preimage;
- * apply the patch data to it, which is stored
- * in the patch->fragments->{patch,size}.
- */
- if (apply_binary_fragment(state, img, patch))
- return error(_("binary patch does not apply to '%s'"),
- name);
-
- /* verify that the result matches */
- hash_sha1_file(img->buf, img->len, blob_type, sha1);
- if (strcmp(sha1_to_hex(sha1), patch->new_sha1_prefix))
- return error(_("binary patch to '%s' creates incorrect result (expecting %s, got %s)"),
- name, patch->new_sha1_prefix, sha1_to_hex(sha1));
- }
-
- return 0;
-}
-
-static int apply_fragments(struct apply_state *state, struct image *img, struct patch *patch)
-{
- struct fragment *frag = patch->fragments;
- const char *name = patch->old_name ? patch->old_name : patch->new_name;
- unsigned ws_rule = patch->ws_rule;
- unsigned inaccurate_eof = patch->inaccurate_eof;
- int nth = 0;
-
- if (patch->is_binary)
- return apply_binary(state, img, patch);
-
- while (frag) {
- nth++;
- if (apply_one_fragment(state, img, frag, inaccurate_eof, ws_rule, nth)) {
- error(_("patch failed: %s:%ld"), name, frag->oldpos);
- if (!state->apply_with_reject)
- return -1;
- frag->rejected = 1;
- }
- frag = frag->next;
- }
- return 0;
-}
-
-static int read_blob_object(struct strbuf *buf, const unsigned char *sha1, unsigned mode)
-{
- if (S_ISGITLINK(mode)) {
- strbuf_grow(buf, 100);
- strbuf_addf(buf, "Subproject commit %s\n", sha1_to_hex(sha1));
- } else {
- enum object_type type;
- unsigned long sz;
- char *result;
-
- result = read_sha1_file(sha1, &type, &sz);
- if (!result)
- return -1;
- /* XXX read_sha1_file NUL-terminates */
- strbuf_attach(buf, result, sz, sz + 1);
- }
- return 0;
-}
-
-static int read_file_or_gitlink(const struct cache_entry *ce, struct strbuf *buf)
-{
- if (!ce)
- return 0;
- return read_blob_object(buf, ce->sha1, ce->ce_mode);
-}
-
-static struct patch *in_fn_table(struct apply_state *state, const char *name)
-{
- struct string_list_item *item;
-
- if (name == NULL)
- return NULL;
-
- item = string_list_lookup(&state->fn_table, name);
- if (item != NULL)
- return (struct patch *)item->util;
-
- return NULL;
-}
-
-/*
- * item->util in the filename table records the status of the path.
- * Usually it points at a patch (whose result records the contents
- * of it after applying it), but it could be PATH_WAS_DELETED for a
- * path that a previously applied patch has already removed, or
- * PATH_TO_BE_DELETED for a path that a later patch would remove.
- *
- * The latter is needed to deal with a case where two paths A and B
- * are swapped by first renaming A to B and then renaming B to A;
- * moving A to B should not be prevented due to presence of B as we
- * will remove it in a later patch.
- */
-#define PATH_TO_BE_DELETED ((struct patch *) -2)
-#define PATH_WAS_DELETED ((struct patch *) -1)
-
-static int to_be_deleted(struct patch *patch)
-{
- return patch == PATH_TO_BE_DELETED;
-}
-
-static int was_deleted(struct patch *patch)
-{
- return patch == PATH_WAS_DELETED;
-}
-
-static void add_to_fn_table(struct apply_state *state, struct patch *patch)
-{
- struct string_list_item *item;
-
- /*
- * Always add new_name unless patch is a deletion
- * This should cover the cases for normal diffs,
- * file creations and copies
- */
- if (patch->new_name != NULL) {
- item = string_list_insert(&state->fn_table, patch->new_name);
- item->util = patch;
- }
-
- /*
- * store a failure on rename/deletion cases because
- * later chunks shouldn't patch old names
- */
- if ((patch->new_name == NULL) || (patch->is_rename)) {
- item = string_list_insert(&state->fn_table, patch->old_name);
- item->util = PATH_WAS_DELETED;
- }
-}
-
-static void prepare_fn_table(struct apply_state *state, struct patch *patch)
-{
- /*
- * store information about incoming file deletion
- */
- while (patch) {
- if ((patch->new_name == NULL) || (patch->is_rename)) {
- struct string_list_item *item;
- item = string_list_insert(&state->fn_table, patch->old_name);
- item->util = PATH_TO_BE_DELETED;
- }
- patch = patch->next;
- }
-}
-
-static int checkout_target(struct index_state *istate,
- struct cache_entry *ce, struct stat *st)
-{
- struct checkout costate;
-
- memset(&costate, 0, sizeof(costate));
- costate.base_dir = "";
- costate.refresh_cache = 1;
- costate.istate = istate;
- if (checkout_entry(ce, &costate, NULL) || lstat(ce->name, st))
- return error(_("cannot checkout %s"), ce->name);
- return 0;
-}
-
-static struct patch *previous_patch(struct apply_state *state,
- struct patch *patch,
- int *gone)
-{
- struct patch *previous;
-
- *gone = 0;
- if (patch->is_copy || patch->is_rename)
- return NULL; /* "git" patches do not depend on the order */
-
- previous = in_fn_table(state, patch->old_name);
- if (!previous)
- return NULL;
-
- if (to_be_deleted(previous))
- return NULL; /* the deletion hasn't happened yet */
-
- if (was_deleted(previous))
- *gone = 1;
-
- return previous;
-}
-
-static int verify_index_match(const struct cache_entry *ce, struct stat *st)
-{
- if (S_ISGITLINK(ce->ce_mode)) {
- if (!S_ISDIR(st->st_mode))
- return -1;
- return 0;
- }
- return ce_match_stat(ce, st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE);
-}
-
-#define SUBMODULE_PATCH_WITHOUT_INDEX 1
-
-static int load_patch_target(struct apply_state *state,
- struct strbuf *buf,
- const struct cache_entry *ce,
- struct stat *st,
- const char *name,
- unsigned expected_mode)
-{
- if (state->cached || state->check_index) {
- if (read_file_or_gitlink(ce, buf))
- return error(_("failed to read %s"), name);
- } else if (name) {
- if (S_ISGITLINK(expected_mode)) {
- if (ce)
- return read_file_or_gitlink(ce, buf);
- else
- return SUBMODULE_PATCH_WITHOUT_INDEX;
- } else if (has_symlink_leading_path(name, strlen(name))) {
- return error(_("reading from '%s' beyond a symbolic link"), name);
- } else {
- if (read_old_data(st, name, buf))
- return error(_("failed to read %s"), name);
- }
- }
- return 0;
-}
-
-/*
- * We are about to apply "patch"; populate the "image" with the
- * current version we have, from the working tree or from the index,
- * depending on the situation e.g. --cached/--index. If we are
- * applying a non-git patch that incrementally updates the tree,
- * we read from the result of a previous diff.
- */
-static int load_preimage(struct apply_state *state,
- struct image *image,
- struct patch *patch, struct stat *st,
- const struct cache_entry *ce)
-{
- struct strbuf buf = STRBUF_INIT;
- size_t len;
- char *img;
- struct patch *previous;
- int status;
-
- previous = previous_patch(state, patch, &status);
- if (status)
- return error(_("path %s has been renamed/deleted"),
- patch->old_name);
- if (previous) {
- /* We have a patched copy in memory; use that. */
- strbuf_add(&buf, previous->result, previous->resultsize);
- } else {
- status = load_patch_target(state, &buf, ce, st,
- patch->old_name, patch->old_mode);
- if (status < 0)
- return status;
- else if (status == SUBMODULE_PATCH_WITHOUT_INDEX) {
- /*
- * There is no way to apply subproject
- * patch without looking at the index.
- * NEEDSWORK: shouldn't this be flagged
- * as an error???
- */
- free_fragment_list(patch->fragments);
- patch->fragments = NULL;
- } else if (status) {
- return error(_("failed to read %s"), patch->old_name);
- }
- }
-
- img = strbuf_detach(&buf, &len);
- prepare_image(image, img, len, !patch->is_binary);
- return 0;
-}
-
-static int three_way_merge(struct image *image,
- char *path,
- const unsigned char *base,
- const unsigned char *ours,
- const unsigned char *theirs)
-{
- mmfile_t base_file, our_file, their_file;
- mmbuffer_t result = { NULL };
- int status;
-
- read_mmblob(&base_file, base);
- read_mmblob(&our_file, ours);
- read_mmblob(&their_file, theirs);
- status = ll_merge(&result, path,
- &base_file, "base",
- &our_file, "ours",
- &their_file, "theirs", NULL);
- free(base_file.ptr);
- free(our_file.ptr);
- free(their_file.ptr);
- if (status < 0 || !result.ptr) {
- free(result.ptr);
- return -1;
- }
- clear_image(image);
- image->buf = result.ptr;
- image->len = result.size;
-
- return status;
-}
-
-/*
- * When directly falling back to add/add three-way merge, we read from
- * the current contents of the new_name. In no cases other than that
- * this function will be called.
- */
-static int load_current(struct apply_state *state,
- struct image *image,
- struct patch *patch)
-{
- struct strbuf buf = STRBUF_INIT;
- int status, pos;
- size_t len;
- char *img;
- struct stat st;
- struct cache_entry *ce;
- char *name = patch->new_name;
- unsigned mode = patch->new_mode;
-
- if (!patch->is_new)
- die("BUG: patch to %s is not a creation", patch->old_name);
-
- pos = cache_name_pos(name, strlen(name));
- if (pos < 0)
- return error(_("%s: does not exist in index"), name);
- ce = active_cache[pos];
- if (lstat(name, &st)) {
- if (errno != ENOENT)
- return error(_("%s: %s"), name, strerror(errno));
- if (checkout_target(&the_index, ce, &st))
- return -1;
- }
- if (verify_index_match(ce, &st))
- return error(_("%s: does not match index"), name);
-
- status = load_patch_target(state, &buf, ce, &st, name, mode);
- if (status < 0)
- return status;
- else if (status)
- return -1;
- img = strbuf_detach(&buf, &len);
- prepare_image(image, img, len, !patch->is_binary);
- return 0;
-}
-
-static int try_threeway(struct apply_state *state,
- struct image *image,
- struct patch *patch,
- struct stat *st,
- const struct cache_entry *ce)
-{
- unsigned char pre_sha1[20], post_sha1[20], our_sha1[20];
- struct strbuf buf = STRBUF_INIT;
- size_t len;
- int status;
- char *img;
- struct image tmp_image;
-
- /* No point falling back to 3-way merge in these cases */
- if (patch->is_delete ||
- S_ISGITLINK(patch->old_mode) || S_ISGITLINK(patch->new_mode))
- return -1;
-
- /* Preimage the patch was prepared for */
- if (patch->is_new)
- write_sha1_file("", 0, blob_type, pre_sha1);
- else if (get_sha1(patch->old_sha1_prefix, pre_sha1) ||
- read_blob_object(&buf, pre_sha1, patch->old_mode))
- return error("repository lacks the necessary blob to fall back on 3-way merge.");
-
- fprintf(stderr, "Falling back to three-way merge...\n");
-
- img = strbuf_detach(&buf, &len);
- prepare_image(&tmp_image, img, len, 1);
- /* Apply the patch to get the post image */
- if (apply_fragments(state, &tmp_image, patch) < 0) {
- clear_image(&tmp_image);
- return -1;
- }
- /* post_sha1[] is theirs */
- write_sha1_file(tmp_image.buf, tmp_image.len, blob_type, post_sha1);
- clear_image(&tmp_image);
-
- /* our_sha1[] is ours */
- if (patch->is_new) {
- if (load_current(state, &tmp_image, patch))
- return error("cannot read the current contents of '%s'",
- patch->new_name);
- } else {
- if (load_preimage(state, &tmp_image, patch, st, ce))
- return error("cannot read the current contents of '%s'",
- patch->old_name);
- }
- write_sha1_file(tmp_image.buf, tmp_image.len, blob_type, our_sha1);
- clear_image(&tmp_image);
-
- /* in-core three-way merge between post and our using pre as base */
- status = three_way_merge(image, patch->new_name,
- pre_sha1, our_sha1, post_sha1);
- if (status < 0) {
- fprintf(stderr, "Failed to fall back on three-way merge...\n");
- return status;
- }
-
- if (status) {
- patch->conflicted_threeway = 1;
- if (patch->is_new)
- oidclr(&patch->threeway_stage[0]);
- else
- hashcpy(patch->threeway_stage[0].hash, pre_sha1);
- hashcpy(patch->threeway_stage[1].hash, our_sha1);
- hashcpy(patch->threeway_stage[2].hash, post_sha1);
- fprintf(stderr, "Applied patch to '%s' with conflicts.\n", patch->new_name);
- } else {
- fprintf(stderr, "Applied patch to '%s' cleanly.\n", patch->new_name);
- }
- return 0;
-}
-
-static int apply_data(struct apply_state *state, struct patch *patch,
- struct stat *st, const struct cache_entry *ce)
-{
- struct image image;
-
- if (load_preimage(state, &image, patch, st, ce) < 0)
- return -1;
-
- if (patch->direct_to_threeway ||
- apply_fragments(state, &image, patch) < 0) {
- /* Note: with --reject, apply_fragments() returns 0 */
- if (!state->threeway || try_threeway(state, &image, patch, st, ce) < 0)
- return -1;
- }
- patch->result = image.buf;
- patch->resultsize = image.len;
- add_to_fn_table(state, patch);
- free(image.line_allocated);
-
- if (0 < patch->is_delete && patch->resultsize)
- return error(_("removal patch leaves file contents"));
-
- return 0;
-}
-
-/*
- * If "patch" that we are looking at modifies or deletes what we have,
- * we would want it not to lose any local modification we have, either
- * in the working tree or in the index.
- *
- * This also decides if a non-git patch is a creation patch or a
- * modification to an existing empty file. We do not check the state
- * of the current tree for a creation patch in this function; the caller
- * check_patch() separately makes sure (and errors out otherwise) that
- * the path the patch creates does not exist in the current tree.
- */
-static int check_preimage(struct apply_state *state,
- struct patch *patch,
- struct cache_entry **ce,
- struct stat *st)
-{
- const char *old_name = patch->old_name;
- struct patch *previous = NULL;
- int stat_ret = 0, status;
- unsigned st_mode = 0;
-
- if (!old_name)
- return 0;
-
- assert(patch->is_new <= 0);
- previous = previous_patch(state, patch, &status);
-
- if (status)
- return error(_("path %s has been renamed/deleted"), old_name);
- if (previous) {
- st_mode = previous->new_mode;
- } else if (!state->cached) {
- stat_ret = lstat(old_name, st);
- if (stat_ret && errno != ENOENT)
- return error(_("%s: %s"), old_name, strerror(errno));
- }
-
- if (state->check_index && !previous) {
- int pos = cache_name_pos(old_name, strlen(old_name));
- if (pos < 0) {
- if (patch->is_new < 0)
- goto is_new;
- return error(_("%s: does not exist in index"), old_name);
- }
- *ce = active_cache[pos];
- if (stat_ret < 0) {
- if (checkout_target(&the_index, *ce, st))
- return -1;
- }
- if (!state->cached && verify_index_match(*ce, st))
- return error(_("%s: does not match index"), old_name);
- if (state->cached)
- st_mode = (*ce)->ce_mode;
- } else if (stat_ret < 0) {
- if (patch->is_new < 0)
- goto is_new;
- return error(_("%s: %s"), old_name, strerror(errno));
- }
-
- if (!state->cached && !previous)
- st_mode = ce_mode_from_stat(*ce, st->st_mode);
-
- if (patch->is_new < 0)
- patch->is_new = 0;
- if (!patch->old_mode)
- patch->old_mode = st_mode;
- if ((st_mode ^ patch->old_mode) & S_IFMT)
- return error(_("%s: wrong type"), old_name);
- if (st_mode != patch->old_mode)
- warning(_("%s has type %o, expected %o"),
- old_name, st_mode, patch->old_mode);
- if (!patch->new_mode && !patch->is_delete)
- patch->new_mode = st_mode;
- return 0;
-
- is_new:
- patch->is_new = 1;
- patch->is_delete = 0;
- free(patch->old_name);
- patch->old_name = NULL;
- return 0;
-}
-
-
-#define EXISTS_IN_INDEX 1
-#define EXISTS_IN_WORKTREE 2
-
-static int check_to_create(struct apply_state *state,
- const char *new_name,
- int ok_if_exists)
-{
- struct stat nst;
-
- if (state->check_index &&
- cache_name_pos(new_name, strlen(new_name)) >= 0 &&
- !ok_if_exists)
- return EXISTS_IN_INDEX;
- if (state->cached)
- return 0;
-
- if (!lstat(new_name, &nst)) {
- if (S_ISDIR(nst.st_mode) || ok_if_exists)
- return 0;
- /*
- * A leading component of new_name might be a symlink
- * that is going to be removed with this patch, but
- * still pointing at somewhere that has the path.
- * In such a case, path "new_name" does not exist as
- * far as git is concerned.
- */
- if (has_symlink_leading_path(new_name, strlen(new_name)))
- return 0;
-
- return EXISTS_IN_WORKTREE;
- } else if ((errno != ENOENT) && (errno != ENOTDIR)) {
- return error("%s: %s", new_name, strerror(errno));
- }
- return 0;
-}
-
-static uintptr_t register_symlink_changes(struct apply_state *state,
- const char *path,
- uintptr_t what)
-{
- struct string_list_item *ent;
-
- ent = string_list_lookup(&state->symlink_changes, path);
- if (!ent) {
- ent = string_list_insert(&state->symlink_changes, path);
- ent->util = (void *)0;
- }
- ent->util = (void *)(what | ((uintptr_t)ent->util));
- return (uintptr_t)ent->util;
-}
-
-static uintptr_t check_symlink_changes(struct apply_state *state, const char *path)
-{
- struct string_list_item *ent;
-
- ent = string_list_lookup(&state->symlink_changes, path);
- if (!ent)
- return 0;
- return (uintptr_t)ent->util;
-}
-
-static void prepare_symlink_changes(struct apply_state *state, struct patch *patch)
-{
- for ( ; patch; patch = patch->next) {
- if ((patch->old_name && S_ISLNK(patch->old_mode)) &&
- (patch->is_rename || patch->is_delete))
- /* the symlink at patch->old_name is removed */
- register_symlink_changes(state, patch->old_name, SYMLINK_GOES_AWAY);
-
- if (patch->new_name && S_ISLNK(patch->new_mode))
- /* the symlink at patch->new_name is created or remains */
- register_symlink_changes(state, patch->new_name, SYMLINK_IN_RESULT);
- }
-}
-
-static int path_is_beyond_symlink_1(struct apply_state *state, struct strbuf *name)
-{
- do {
- unsigned int change;
-
- while (--name->len && name->buf[name->len] != '/')
- ; /* scan backwards */
- if (!name->len)
- break;
- name->buf[name->len] = '\0';
- change = check_symlink_changes(state, name->buf);
- if (change & SYMLINK_IN_RESULT)
- return 1;
- if (change & SYMLINK_GOES_AWAY)
- /*
- * This cannot be "return 0", because we may
- * see a new one created at a higher level.
- */
- continue;
-
- /* otherwise, check the preimage */
- if (state->check_index) {
- struct cache_entry *ce;
-
- ce = cache_file_exists(name->buf, name->len, ignore_case);
- if (ce && S_ISLNK(ce->ce_mode))
- return 1;
- } else {
- struct stat st;
- if (!lstat(name->buf, &st) && S_ISLNK(st.st_mode))
- return 1;
- }
- } while (1);
- return 0;
-}
-
-static int path_is_beyond_symlink(struct apply_state *state, const char *name_)
-{
- int ret;
- struct strbuf name = STRBUF_INIT;
-
- assert(*name_ != '\0');
- strbuf_addstr(&name, name_);
- ret = path_is_beyond_symlink_1(state, &name);
- strbuf_release(&name);
-
- return ret;
-}
-
-static void die_on_unsafe_path(struct patch *patch)
-{
- const char *old_name = NULL;
- const char *new_name = NULL;
- if (patch->is_delete)
- old_name = patch->old_name;
- else if (!patch->is_new && !patch->is_copy)
- old_name = patch->old_name;
- if (!patch->is_delete)
- new_name = patch->new_name;
-
- if (old_name && !verify_path(old_name))
- die(_("invalid path '%s'"), old_name);
- if (new_name && !verify_path(new_name))
- die(_("invalid path '%s'"), new_name);
-}
-
-/*
- * Check and apply the patch in-core; leave the result in patch->result
- * for the caller to write it out to the final destination.
- */
-static int check_patch(struct apply_state *state, struct patch *patch)
-{
- struct stat st;
- const char *old_name = patch->old_name;
- const char *new_name = patch->new_name;
- const char *name = old_name ? old_name : new_name;
- struct cache_entry *ce = NULL;
- struct patch *tpatch;
- int ok_if_exists;
- int status;
-
- patch->rejected = 1; /* we will drop this after we succeed */
-
- status = check_preimage(state, patch, &ce, &st);
- if (status)
- return status;
- old_name = patch->old_name;
-
- /*
- * A type-change diff is always split into a patch to delete
- * old, immediately followed by a patch to create new (see
- * diff.c::run_diff()); in such a case it is Ok that the entry
- * to be deleted by the previous patch is still in the working
- * tree and in the index.
- *
- * A patch to swap-rename between A and B would first rename A
- * to B and then rename B to A. While applying the first one,
- * the presence of B should not stop A from getting renamed to
- * B; ask to_be_deleted() about the later rename. Removal of
- * B and rename from A to B is handled the same way by asking
- * was_deleted().
- */
- if ((tpatch = in_fn_table(state, new_name)) &&
- (was_deleted(tpatch) || to_be_deleted(tpatch)))
- ok_if_exists = 1;
- else
- ok_if_exists = 0;
-
- if (new_name &&
- ((0 < patch->is_new) || patch->is_rename || patch->is_copy)) {
- int err = check_to_create(state, new_name, ok_if_exists);
-
- if (err && state->threeway) {
- patch->direct_to_threeway = 1;
- } else switch (err) {
- case 0:
- break; /* happy */
- case EXISTS_IN_INDEX:
- return error(_("%s: already exists in index"), new_name);
- break;
- case EXISTS_IN_WORKTREE:
- return error(_("%s: already exists in working directory"),
- new_name);
- default:
- return err;
- }
-
- if (!patch->new_mode) {
- if (0 < patch->is_new)
- patch->new_mode = S_IFREG | 0644;
- else
- patch->new_mode = patch->old_mode;
- }
- }
-
- if (new_name && old_name) {
- int same = !strcmp(old_name, new_name);
- if (!patch->new_mode)
- patch->new_mode = patch->old_mode;
- if ((patch->old_mode ^ patch->new_mode) & S_IFMT) {
- if (same)
- return error(_("new mode (%o) of %s does not "
- "match old mode (%o)"),
- patch->new_mode, new_name,
- patch->old_mode);
- else
- return error(_("new mode (%o) of %s does not "
- "match old mode (%o) of %s"),
- patch->new_mode, new_name,
- patch->old_mode, old_name);
- }
- }
-
- if (!state->unsafe_paths)
- die_on_unsafe_path(patch);
-
- /*
- * An attempt to read from or delete a path that is beyond a
- * symbolic link will be prevented by load_patch_target() that
- * is called at the beginning of apply_data() so we do not
- * have to worry about a patch marked with "is_delete" bit
- * here. We however need to make sure that the patch result
- * is not deposited to a path that is beyond a symbolic link
- * here.
- */
- if (!patch->is_delete && path_is_beyond_symlink(state, patch->new_name))
- return error(_("affected file '%s' is beyond a symbolic link"),
- patch->new_name);
-
- if (apply_data(state, patch, &st, ce) < 0)
- return error(_("%s: patch does not apply"), name);
- patch->rejected = 0;
- return 0;
-}
-
-static int check_patch_list(struct apply_state *state, struct patch *patch)
-{
- int err = 0;
-
- prepare_symlink_changes(state, patch);
- prepare_fn_table(state, patch);
- while (patch) {
- if (state->apply_verbosely)
- say_patch_name(stderr,
- _("Checking patch %s..."), patch);
- err |= check_patch(state, patch);
- patch = patch->next;
- }
- return err;
-}
-
-/* This function tries to read the sha1 from the current index */
-static int get_current_sha1(const char *path, unsigned char *sha1)
-{
- int pos;
-
- if (read_cache() < 0)
- return -1;
- pos = cache_name_pos(path, strlen(path));
- if (pos < 0)
- return -1;
- hashcpy(sha1, active_cache[pos]->sha1);
- return 0;
-}
-
-static int preimage_sha1_in_gitlink_patch(struct patch *p, unsigned char sha1[20])
-{
- /*
- * A usable gitlink patch has only one fragment (hunk) that looks like:
- * @@ -1 +1 @@
- * -Subproject commit <old sha1>
- * +Subproject commit <new sha1>
- * or
- * @@ -1 +0,0 @@
- * -Subproject commit <old sha1>
- * for a removal patch.
- */
- struct fragment *hunk = p->fragments;
- static const char heading[] = "-Subproject commit ";
- char *preimage;
-
- if (/* does the patch have only one hunk? */
- hunk && !hunk->next &&
- /* is its preimage one line? */
- hunk->oldpos == 1 && hunk->oldlines == 1 &&
- /* does preimage begin with the heading? */
- (preimage = memchr(hunk->patch, '\n', hunk->size)) != NULL &&
- starts_with(++preimage, heading) &&
- /* does it record full SHA-1? */
- !get_sha1_hex(preimage + sizeof(heading) - 1, sha1) &&
- preimage[sizeof(heading) + 40 - 1] == '\n' &&
- /* does the abbreviated name on the index line agree with it? */
- starts_with(preimage + sizeof(heading) - 1, p->old_sha1_prefix))
- return 0; /* it all looks fine */
-
- /* we may have full object name on the index line */
- return get_sha1_hex(p->old_sha1_prefix, sha1);
-}
-
-/* Build an index that contains the just the files needed for a 3way merge */
-static void build_fake_ancestor(struct patch *list, const char *filename)
-{
- struct patch *patch;
- struct index_state result = { NULL };
- static struct lock_file lock;
-
- /* Once we start supporting the reverse patch, it may be
- * worth showing the new sha1 prefix, but until then...
- */
- for (patch = list; patch; patch = patch->next) {
- unsigned char sha1[20];
- struct cache_entry *ce;
- const char *name;
-
- name = patch->old_name ? patch->old_name : patch->new_name;
- if (0 < patch->is_new)
- continue;
-
- if (S_ISGITLINK(patch->old_mode)) {
- if (!preimage_sha1_in_gitlink_patch(patch, sha1))
- ; /* ok, the textual part looks sane */
- else
- die("sha1 information is lacking or useless for submodule %s",
- name);
- } else if (!get_sha1_blob(patch->old_sha1_prefix, sha1)) {
- ; /* ok */
- } else if (!patch->lines_added && !patch->lines_deleted) {
- /* mode-only change: update the current */
- if (get_current_sha1(patch->old_name, sha1))
- die("mode change for %s, which is not "
- "in current HEAD", name);
- } else
- die("sha1 information is lacking or useless "
- "(%s).", name);
-
- ce = make_cache_entry(patch->old_mode, sha1, name, 0, 0);
- if (!ce)
- die(_("make_cache_entry failed for path '%s'"), name);
- if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD))
- die ("Could not add %s to temporary index", name);
- }
-
- hold_lock_file_for_update(&lock, filename, LOCK_DIE_ON_ERROR);
- if (write_locked_index(&result, &lock, COMMIT_LOCK))
- die ("Could not write temporary index to %s", filename);
-
- discard_index(&result);
-}
-
-static void stat_patch_list(struct apply_state *state, struct patch *patch)
-{
- int files, adds, dels;
-
- for (files = adds = dels = 0 ; patch ; patch = patch->next) {
- files++;
- adds += patch->lines_added;
- dels += patch->lines_deleted;
- show_stats(state, patch);
- }
-
- print_stat_summary(stdout, files, adds, dels);
-}
-
-static void numstat_patch_list(struct apply_state *state,
- struct patch *patch)
-{
- for ( ; patch; patch = patch->next) {
- const char *name;
- name = patch->new_name ? patch->new_name : patch->old_name;
- if (patch->is_binary)
- printf("-\t-\t");
- else
- printf("%d\t%d\t", patch->lines_added, patch->lines_deleted);
- write_name_quoted(name, stdout, state->line_termination);
- }
-}
-
-static void show_file_mode_name(const char *newdelete, unsigned int mode, const char *name)
-{
- if (mode)
- printf(" %s mode %06o %s\n", newdelete, mode, name);
- else
- printf(" %s %s\n", newdelete, name);
-}
-
-static void show_mode_change(struct patch *p, int show_name)
-{
- if (p->old_mode && p->new_mode && p->old_mode != p->new_mode) {
- if (show_name)
- printf(" mode change %06o => %06o %s\n",
- p->old_mode, p->new_mode, p->new_name);
- else
- printf(" mode change %06o => %06o\n",
- p->old_mode, p->new_mode);
- }
-}
-
-static void show_rename_copy(struct patch *p)
-{
- const char *renamecopy = p->is_rename ? "rename" : "copy";
- const char *old, *new;
-
- /* Find common prefix */
- old = p->old_name;
- new = p->new_name;
- while (1) {
- const char *slash_old, *slash_new;
- slash_old = strchr(old, '/');
- slash_new = strchr(new, '/');
- if (!slash_old ||
- !slash_new ||
- slash_old - old != slash_new - new ||
- memcmp(old, new, slash_new - new))
- break;
- old = slash_old + 1;
- new = slash_new + 1;
- }
- /* p->old_name thru old is the common prefix, and old and new
- * through the end of names are renames
- */
- if (old != p->old_name)
- printf(" %s %.*s{%s => %s} (%d%%)\n", renamecopy,
- (int)(old - p->old_name), p->old_name,
- old, new, p->score);
- else
- printf(" %s %s => %s (%d%%)\n", renamecopy,
- p->old_name, p->new_name, p->score);
- show_mode_change(p, 0);
-}
-
-static void summary_patch_list(struct patch *patch)
-{
- struct patch *p;
-
- for (p = patch; p; p = p->next) {
- if (p->is_new)
- show_file_mode_name("create", p->new_mode, p->new_name);
- else if (p->is_delete)
- show_file_mode_name("delete", p->old_mode, p->old_name);
- else {
- if (p->is_rename || p->is_copy)
- show_rename_copy(p);
- else {
- if (p->score) {
- printf(" rewrite %s (%d%%)\n",
- p->new_name, p->score);
- show_mode_change(p, 0);
- }
- else
- show_mode_change(p, 1);
- }
- }
- }
-}
-
-static void patch_stats(struct apply_state *state, struct patch *patch)
-{
- int lines = patch->lines_added + patch->lines_deleted;
-
- if (lines > state->max_change)
- state->max_change = lines;
- if (patch->old_name) {
- int len = quote_c_style(patch->old_name, NULL, NULL, 0);
- if (!len)
- len = strlen(patch->old_name);
- if (len > state->max_len)
- state->max_len = len;
- }
- if (patch->new_name) {
- int len = quote_c_style(patch->new_name, NULL, NULL, 0);
- if (!len)
- len = strlen(patch->new_name);
- if (len > state->max_len)
- state->max_len = len;
- }
-}
-
-static void remove_file(struct apply_state *state, struct patch *patch, int rmdir_empty)
-{
- if (state->update_index) {
- if (remove_file_from_cache(patch->old_name) < 0)
- die(_("unable to remove %s from index"), patch->old_name);
- }
- if (!state->cached) {
- if (!remove_or_warn(patch->old_mode, patch->old_name) && rmdir_empty) {
- remove_path(patch->old_name);
- }
- }
-}
-
-static void add_index_file(struct apply_state *state,
- const char *path,
- unsigned mode,
- void *buf,
- unsigned long size)
-{
- struct stat st;
- struct cache_entry *ce;
- int namelen = strlen(path);
- unsigned ce_size = cache_entry_size(namelen);
-
- if (!state->update_index)
- return;
-
- ce = xcalloc(1, ce_size);
- memcpy(ce->name, path, namelen);
- ce->ce_mode = create_ce_mode(mode);
- ce->ce_flags = create_ce_flags(0);
- ce->ce_namelen = namelen;
- if (S_ISGITLINK(mode)) {
- const char *s;
-
- if (!skip_prefix(buf, "Subproject commit ", &s) ||
- get_sha1_hex(s, ce->sha1))
- die(_("corrupt patch for submodule %s"), path);
- } else {
- if (!state->cached) {
- if (lstat(path, &st) < 0)
- die_errno(_("unable to stat newly created file '%s'"),
- path);
- fill_stat_cache_info(ce, &st);
- }
- if (write_sha1_file(buf, size, blob_type, ce->sha1) < 0)
- die(_("unable to create backing store for newly created file %s"), path);
- }
- if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0)
- die(_("unable to add cache entry for %s"), path);
-}
-
-static int try_create_file(const char *path, unsigned int mode, const char *buf, unsigned long size)
-{
- int fd;
- struct strbuf nbuf = STRBUF_INIT;
-
- if (S_ISGITLINK(mode)) {
- struct stat st;
- if (!lstat(path, &st) && S_ISDIR(st.st_mode))
- return 0;
- return mkdir(path, 0777);
- }
-
- if (has_symlinks && S_ISLNK(mode))
- /* Although buf:size is counted string, it also is NUL
- * terminated.
- */
- return symlink(buf, path);
-
- fd = open(path, O_CREAT | O_EXCL | O_WRONLY, (mode & 0100) ? 0777 : 0666);
- if (fd < 0)
- return -1;
-
- if (convert_to_working_tree(path, buf, size, &nbuf)) {
- size = nbuf.len;
- buf = nbuf.buf;
- }
- write_or_die(fd, buf, size);
- strbuf_release(&nbuf);
-
- if (close(fd) < 0)
- die_errno(_("closing file '%s'"), path);
- return 0;
-}
-
-/*
- * We optimistically assume that the directories exist,
- * which is true 99% of the time anyway. If they don't,
- * we create them and try again.
- */
-static void create_one_file(struct apply_state *state,
- char *path,
- unsigned mode,
- const char *buf,
- unsigned long size)
-{
- if (state->cached)
- return;
- if (!try_create_file(path, mode, buf, size))
- return;
-
- if (errno == ENOENT) {
- if (safe_create_leading_directories(path))
- return;
- if (!try_create_file(path, mode, buf, size))
- return;
- }
-
- if (errno == EEXIST || errno == EACCES) {
- /* We may be trying to create a file where a directory
- * used to be.
- */
- struct stat st;
- if (!lstat(path, &st) && (!S_ISDIR(st.st_mode) || !rmdir(path)))
- errno = EEXIST;
- }
-
- if (errno == EEXIST) {
- unsigned int nr = getpid();
-
- for (;;) {
- char newpath[PATH_MAX];
- mksnpath(newpath, sizeof(newpath), "%s~%u", path, nr);
- if (!try_create_file(newpath, mode, buf, size)) {
- if (!rename(newpath, path))
- return;
- unlink_or_warn(newpath);
- break;
- }
- if (errno != EEXIST)
- break;
- ++nr;
- }
- }
- die_errno(_("unable to write file '%s' mode %o"), path, mode);
-}
-
-static void add_conflicted_stages_file(struct apply_state *state,
- struct patch *patch)
-{
- int stage, namelen;
- unsigned ce_size, mode;
- struct cache_entry *ce;
-
- if (!state->update_index)
- return;
- namelen = strlen(patch->new_name);
- ce_size = cache_entry_size(namelen);
- mode = patch->new_mode ? patch->new_mode : (S_IFREG | 0644);
-
- remove_file_from_cache(patch->new_name);
- for (stage = 1; stage < 4; stage++) {
- if (is_null_oid(&patch->threeway_stage[stage - 1]))
- continue;
- ce = xcalloc(1, ce_size);
- memcpy(ce->name, patch->new_name, namelen);
- ce->ce_mode = create_ce_mode(mode);
- ce->ce_flags = create_ce_flags(stage);
- ce->ce_namelen = namelen;
- hashcpy(ce->sha1, patch->threeway_stage[stage - 1].hash);
- if (add_cache_entry(ce, ADD_CACHE_OK_TO_ADD) < 0)
- die(_("unable to add cache entry for %s"), patch->new_name);
- }
-}
-
-static void create_file(struct apply_state *state, struct patch *patch)
-{
- char *path = patch->new_name;
- unsigned mode = patch->new_mode;
- unsigned long size = patch->resultsize;
- char *buf = patch->result;
-
- if (!mode)
- mode = S_IFREG | 0644;
- create_one_file(state, path, mode, buf, size);
-
- if (patch->conflicted_threeway)
- add_conflicted_stages_file(state, patch);
- else
- add_index_file(state, path, mode, buf, size);
-}
-
-/* phase zero is to remove, phase one is to create */
-static void write_out_one_result(struct apply_state *state,
- struct patch *patch,
- int phase)
-{
- if (patch->is_delete > 0) {
- if (phase == 0)
- remove_file(state, patch, 1);
- return;
- }
- if (patch->is_new > 0 || patch->is_copy) {
- if (phase == 1)
- create_file(state, patch);
- return;
- }
- /*
- * Rename or modification boils down to the same
- * thing: remove the old, write the new
- */
- if (phase == 0)
- remove_file(state, patch, patch->is_rename);
- if (phase == 1)
- create_file(state, patch);
-}
-
-static int write_out_one_reject(struct apply_state *state, struct patch *patch)
-{
- FILE *rej;
- char namebuf[PATH_MAX];
- struct fragment *frag;
- int cnt = 0;
- struct strbuf sb = STRBUF_INIT;
-
- for (cnt = 0, frag = patch->fragments; frag; frag = frag->next) {
- if (!frag->rejected)
- continue;
- cnt++;
- }
-
- if (!cnt) {
- if (state->apply_verbosely)
- say_patch_name(stderr,
- _("Applied patch %s cleanly."), patch);
- return 0;
- }
-
- /* This should not happen, because a removal patch that leaves
- * contents are marked "rejected" at the patch level.
- */
- if (!patch->new_name)
- die(_("internal error"));
-
- /* Say this even without --verbose */
- strbuf_addf(&sb, Q_("Applying patch %%s with %d reject...",
- "Applying patch %%s with %d rejects...",
- cnt),
- cnt);
- say_patch_name(stderr, sb.buf, patch);
- strbuf_release(&sb);
-
- cnt = strlen(patch->new_name);
- if (ARRAY_SIZE(namebuf) <= cnt + 5) {
- cnt = ARRAY_SIZE(namebuf) - 5;
- warning(_("truncating .rej filename to %.*s.rej"),
- cnt - 1, patch->new_name);
- }
- memcpy(namebuf, patch->new_name, cnt);
- memcpy(namebuf + cnt, ".rej", 5);
-
- rej = fopen(namebuf, "w");
- if (!rej)
- return error(_("cannot open %s: %s"), namebuf, strerror(errno));
-
- /* Normal git tools never deal with .rej, so do not pretend
- * this is a git patch by saying --git or giving extended
- * headers. While at it, maybe please "kompare" that wants
- * the trailing TAB and some garbage at the end of line ;-).
- */
- fprintf(rej, "diff a/%s b/%s\t(rejected hunks)\n",
- patch->new_name, patch->new_name);
- for (cnt = 1, frag = patch->fragments;
- frag;
- cnt++, frag = frag->next) {
- if (!frag->rejected) {
- fprintf_ln(stderr, _("Hunk #%d applied cleanly."), cnt);
- continue;
- }
- fprintf_ln(stderr, _("Rejected hunk #%d."), cnt);
- fprintf(rej, "%.*s", frag->size, frag->patch);
- if (frag->patch[frag->size-1] != '\n')
- fputc('\n', rej);
- }
- fclose(rej);
- return -1;
-}
-
-static int write_out_results(struct apply_state *state, struct patch *list)
-{
- int phase;
- int errs = 0;
- struct patch *l;
- struct string_list cpath = STRING_LIST_INIT_DUP;
-
- for (phase = 0; phase < 2; phase++) {
- l = list;
- while (l) {
- if (l->rejected)
- errs = 1;
- else {
- write_out_one_result(state, l, phase);
- if (phase == 1) {
- if (write_out_one_reject(state, l))
- errs = 1;
- if (l->conflicted_threeway) {
- string_list_append(&cpath, l->new_name);
- errs = 1;
- }
- }
- }
- l = l->next;
- }
- }
-
- if (cpath.nr) {
- struct string_list_item *item;
-
- string_list_sort(&cpath);
- for_each_string_list_item(item, &cpath)
- fprintf(stderr, "U %s\n", item->string);
- string_list_clear(&cpath, 0);
-
- rerere(0);
- }
-
- return errs;
-}
-
static struct lock_file lock_file;
-#define INACCURATE_EOF (1<<0)
-#define RECOUNT (1<<1)
-
-static int apply_patch(struct apply_state *state,
- int fd,
- const char *filename,
- int options)
-{
- size_t offset;
- struct strbuf buf = STRBUF_INIT; /* owns the patch text */
- struct patch *list = NULL, **listp = &list;
- int skipped_patch = 0;
-
- state->patch_input_file = filename;
- read_patch_file(&buf, fd);
- offset = 0;
- while (offset < buf.len) {
- struct patch *patch;
- int nr;
-
- patch = xcalloc(1, sizeof(*patch));
- patch->inaccurate_eof = !!(options & INACCURATE_EOF);
- patch->recount = !!(options & RECOUNT);
- nr = parse_chunk(state, buf.buf + offset, buf.len - offset, patch);
- if (nr < 0) {
- free_patch(patch);
- break;
- }
- if (state->apply_in_reverse)
- reverse_patches(patch);
- if (use_patch(state, patch)) {
- patch_stats(state, patch);
- *listp = patch;
- listp = &patch->next;
- }
- else {
- if (state->apply_verbosely)
- say_patch_name(stderr, _("Skipped patch '%s'."), patch);
- free_patch(patch);
- skipped_patch++;
- }
- offset += nr;
- }
-
- if (!list && !skipped_patch)
- die(_("unrecognized input"));
-
- if (state->whitespace_error && (state->ws_error_action == die_on_ws_error))
- state->apply = 0;
-
- state->update_index = state->check_index && state->apply;
- if (state->update_index && state->newfd < 0)
- state->newfd = hold_locked_index(state->lock_file, 1);
-
- if (state->check_index) {
- if (read_cache() < 0)
- die(_("unable to read index file"));
- }
-
- if ((state->check || state->apply) &&
- check_patch_list(state, list) < 0 &&
- !state->apply_with_reject)
- exit(1);
-
- if (state->apply && write_out_results(state, list)) {
- if (state->apply_with_reject)
- exit(1);
- /* with --3way, we still need to write the index out */
- return 1;
- }
-
- if (state->fake_ancestor)
- build_fake_ancestor(list, state->fake_ancestor);
-
- if (state->diffstat)
- stat_patch_list(state, list);
-
- if (state->numstat)
- numstat_patch_list(state, list);
-
- if (state->summary)
- summary_patch_list(list);
-
- free_patch_list(list);
- strbuf_release(&buf);
- string_list_clear(&state->fn_table, 0);
- return 0;
-}
-
-static void git_apply_config(void)
-{
- git_config_get_string_const("apply.whitespace", &apply_default_whitespace);
- git_config_get_string_const("apply.ignorewhitespace", &apply_default_ignorewhitespace);
- git_config(git_default_config, NULL);
-}
-
-static int option_parse_exclude(const struct option *opt,
- const char *arg, int unset)
-{
- struct apply_state *state = opt->value;
- add_name_limit(state, arg, 1);
- return 0;
-}
-
-static int option_parse_include(const struct option *opt,
- const char *arg, int unset)
-{
- struct apply_state *state = opt->value;
- add_name_limit(state, arg, 0);
- state->has_include = 1;
- return 0;
-}
-
-static int option_parse_p(const struct option *opt,
- const char *arg,
- int unset)
-{
- struct apply_state *state = opt->value;
- state->p_value = atoi(arg);
- state->p_value_known = 1;
- return 0;
-}
-
-static int option_parse_space_change(const struct option *opt,
- const char *arg, int unset)
-{
- struct apply_state *state = opt->value;
- if (unset)
- state->ws_ignore_action = ignore_ws_none;
- else
- state->ws_ignore_action = ignore_ws_change;
- return 0;
-}
-
-static int option_parse_whitespace(const struct option *opt,
- const char *arg, int unset)
-{
- struct apply_state *state = opt->value;
- state->whitespace_option = arg;
- parse_whitespace_option(state, arg);
- return 0;
-}
-
-static int option_parse_directory(const struct option *opt,
- const char *arg, int unset)
-{
- struct apply_state *state = opt->value;
- strbuf_reset(&state->root);
- strbuf_addstr(&state->root, arg);
- strbuf_complete(&state->root, '/');
- return 0;
-}
-
-static void init_apply_state(struct apply_state *state,
- const char *prefix,
- struct lock_file *lock_file)
-{
- memset(state, 0, sizeof(*state));
- state->prefix = prefix;
- state->prefix_length = state->prefix ? strlen(state->prefix) : 0;
- state->lock_file = lock_file;
- state->newfd = -1;
- state->apply = 1;
- state->line_termination = '\n';
- state->p_value = 1;
- state->p_context = UINT_MAX;
- state->squelch_whitespace_errors = 5;
- state->ws_error_action = warn_on_ws_error;
- state->ws_ignore_action = ignore_ws_none;
- state->linenr = 1;
- string_list_init(&state->fn_table, 0);
- string_list_init(&state->limit_by_name, 0);
- string_list_init(&state->symlink_changes, 0);
- strbuf_init(&state->root, 0);
-
- git_apply_config();
- if (apply_default_whitespace)
- parse_whitespace_option(state, apply_default_whitespace);
- if (apply_default_ignorewhitespace)
- parse_ignorewhitespace_option(state, apply_default_ignorewhitespace);
-}
-
-static void clear_apply_state(struct apply_state *state)
-{
- string_list_clear(&state->limit_by_name, 0);
- string_list_clear(&state->symlink_changes, 0);
- strbuf_release(&state->root);
-
- /* &state->fn_table is cleared at the end of apply_patch() */
-}
-
-static void check_apply_state(struct apply_state *state, int force_apply)
-{
- int is_not_gitdir = !startup_info->have_repository;
-
- if (state->apply_with_reject && state->threeway)
- die("--reject and --3way cannot be used together.");
- if (state->cached && state->threeway)
- die("--cached and --3way cannot be used together.");
- if (state->threeway) {
- if (is_not_gitdir)
- die(_("--3way outside a repository"));
- state->check_index = 1;
- }
- if (state->apply_with_reject)
- state->apply = state->apply_verbosely = 1;
- if (!force_apply && (state->diffstat || state->numstat || state->summary || state->check || state->fake_ancestor))
- state->apply = 0;
- if (state->check_index && is_not_gitdir)
- die(_("--index outside a repository"));
- if (state->cached) {
- if (is_not_gitdir)
- die(_("--cached outside a repository"));
- state->check_index = 1;
- }
- if (state->check_index)
- state->unsafe_paths = 0;
- if (!state->lock_file)
- die("BUG: state->lock_file should not be NULL");
-}
-
-static int apply_all_patches(struct apply_state *state,
- int argc,
- const char **argv,
- int options)
-{
- int i;
- int errs = 0;
- int read_stdin = 1;
-
- for (i = 0; i < argc; i++) {
- const char *arg = argv[i];
- int fd;
-
- if (!strcmp(arg, "-")) {
- errs |= apply_patch(state, 0, "<stdin>", options);
- read_stdin = 0;
- continue;
- } else if (0 < state->prefix_length)
- arg = prefix_filename(state->prefix,
- state->prefix_length,
- arg);
-
- fd = open(arg, O_RDONLY);
- if (fd < 0)
- die_errno(_("can't open patch '%s'"), arg);
- read_stdin = 0;
- set_default_whitespace_mode(state);
- errs |= apply_patch(state, fd, arg, options);
- close(fd);
- }
- set_default_whitespace_mode(state);
- if (read_stdin)
- errs |= apply_patch(state, 0, "<stdin>", options);
-
- if (state->whitespace_error) {
- if (state->squelch_whitespace_errors &&
- state->squelch_whitespace_errors < state->whitespace_error) {
- int squelched =
- state->whitespace_error - state->squelch_whitespace_errors;
- warning(Q_("squelched %d whitespace error",
- "squelched %d whitespace errors",
- squelched),
- squelched);
- }
- if (state->ws_error_action == die_on_ws_error)
- die(Q_("%d line adds whitespace errors.",
- "%d lines add whitespace errors.",
- state->whitespace_error),
- state->whitespace_error);
- if (state->applied_after_fixing_ws && state->apply)
- warning("%d line%s applied after"
- " fixing whitespace errors.",
- state->applied_after_fixing_ws,
- state->applied_after_fixing_ws == 1 ? "" : "s");
- else if (state->whitespace_error)
- warning(Q_("%d line adds whitespace errors.",
- "%d lines add whitespace errors.",
- state->whitespace_error),
- state->whitespace_error);
- }
-
- if (state->update_index) {
- if (write_locked_index(&the_index, state->lock_file, COMMIT_LOCK))
- die(_("Unable to write new index file"));
- state->newfd = -1;
- }
-
- return !!errs;
-}
-
int cmd_apply(int argc, const char **argv, const char *prefix)
{
int force_apply = 0;
@@ -4795,81 +18,15 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
int ret;
struct apply_state state;
- struct option builtin_apply_options[] = {
- { OPTION_CALLBACK, 0, "exclude", &state, N_("path"),
- N_("don't apply changes matching the given path"),
- 0, option_parse_exclude },
- { OPTION_CALLBACK, 0, "include", &state, N_("path"),
- N_("apply changes matching the given path"),
- 0, option_parse_include },
- { OPTION_CALLBACK, 'p', NULL, &state, N_("num"),
- N_("remove <num> leading slashes from traditional diff paths"),
- 0, option_parse_p },
- OPT_BOOL(0, "no-add", &state.no_add,
- N_("ignore additions made by the patch")),
- OPT_BOOL(0, "stat", &state.diffstat,
- N_("instead of applying the patch, output diffstat for the input")),
- OPT_NOOP_NOARG(0, "allow-binary-replacement"),
- OPT_NOOP_NOARG(0, "binary"),
- OPT_BOOL(0, "numstat", &state.numstat,
- N_("show number of added and deleted lines in decimal notation")),
- OPT_BOOL(0, "summary", &state.summary,
- N_("instead of applying the patch, output a summary for the input")),
- OPT_BOOL(0, "check", &state.check,
- N_("instead of applying the patch, see if the patch is applicable")),
- OPT_BOOL(0, "index", &state.check_index,
- N_("make sure the patch is applicable to the current index")),
- OPT_BOOL(0, "cached", &state.cached,
- N_("apply a patch without touching the working tree")),
- OPT_BOOL(0, "unsafe-paths", &state.unsafe_paths,
- N_("accept a patch that touches outside the working area")),
- OPT_BOOL(0, "apply", &force_apply,
- N_("also apply the patch (use with --stat/--summary/--check)")),
- OPT_BOOL('3', "3way", &state.threeway,
- N_( "attempt three-way merge if a patch does not apply")),
- OPT_FILENAME(0, "build-fake-ancestor", &state.fake_ancestor,
- N_("build a temporary index based on embedded index information")),
- /* Think twice before adding "--nul" synonym to this */
- OPT_SET_INT('z', NULL, &state.line_termination,
- N_("paths are separated with NUL character"), '\0'),
- OPT_INTEGER('C', NULL, &state.p_context,
- N_("ensure at least <n> lines of context match")),
- { OPTION_CALLBACK, 0, "whitespace", &state, N_("action"),
- N_("detect new or modified lines that have whitespace errors"),
- 0, option_parse_whitespace },
- { OPTION_CALLBACK, 0, "ignore-space-change", &state, NULL,
- N_("ignore changes in whitespace when finding context"),
- PARSE_OPT_NOARG, option_parse_space_change },
- { OPTION_CALLBACK, 0, "ignore-whitespace", &state, NULL,
- N_("ignore changes in whitespace when finding context"),
- PARSE_OPT_NOARG, option_parse_space_change },
- OPT_BOOL('R', "reverse", &state.apply_in_reverse,
- N_("apply the patch in reverse")),
- OPT_BOOL(0, "unidiff-zero", &state.unidiff_zero,
- N_("don't expect at least one line of context")),
- OPT_BOOL(0, "reject", &state.apply_with_reject,
- N_("leave the rejected hunks in corresponding *.rej files")),
- OPT_BOOL(0, "allow-overlap", &state.allow_overlap,
- N_("allow overlapping hunks")),
- OPT__VERBOSE(&state.apply_verbosely, N_("be verbose")),
- OPT_BIT(0, "inaccurate-eof", &options,
- N_("tolerate incorrectly detected missing new-line at the end of file"),
- INACCURATE_EOF),
- OPT_BIT(0, "recount", &options,
- N_("do not trust the line counts in the hunk headers"),
- RECOUNT),
- { OPTION_CALLBACK, 0, "directory", &state, N_("root"),
- N_("prepend <root> to all filenames"),
- 0, option_parse_directory },
- OPT_END()
- };
-
- init_apply_state(&state, prefix, &lock_file);
+ if (init_apply_state(&state, prefix, &lock_file))
+ exit(128);
- argc = parse_options(argc, argv, state.prefix, builtin_apply_options,
- apply_usage, 0);
+ argc = apply_parse_options(argc, argv,
+ &state, &force_apply, &options,
+ apply_usage);
- check_apply_state(&state, force_apply);
+ if (check_apply_state(&state, force_apply))
+ exit(128);
ret = apply_all_patches(&state, argc, argv, options);
diff --git a/builtin/archive.c b/builtin/archive.c
index a1e3b94..f863465 100644
--- a/builtin/archive.c
+++ b/builtin/archive.c
@@ -47,10 +47,10 @@ static int run_remote_archiver(int argc, const char **argv,
if (name_hint) {
const char *format = archive_format_from_filename(name_hint);
if (format)
- packet_write(fd[1], "argument --format=%s\n", format);
+ packet_write_fmt(fd[1], "argument --format=%s\n", format);
}
for (i = 1; i < argc; i++)
- packet_write(fd[1], "argument %s\n", argv[i]);
+ packet_write_fmt(fd[1], "argument %s\n", argv[i]);
packet_flush(fd[1]);
buf = packet_read_line(fd[0], NULL);
@@ -85,8 +85,8 @@ int cmd_archive(int argc, const char **argv, const char *prefix)
const char *output = NULL;
const char *remote = NULL;
struct option local_opts[] = {
- OPT_STRING('o', "output", &output, N_("file"),
- N_("write the archive to this file")),
+ OPT_FILENAME('o', "output", &output,
+ N_("write the archive to this file")),
OPT_STRING(0, "remote", &remote, N_("repo"),
N_("retrieve the archive from remote repository <repo>")),
OPT_STRING(0, "exec", &exec, N_("command"),
@@ -105,5 +105,5 @@ int cmd_archive(int argc, const char **argv, const char *prefix)
setvbuf(stderr, NULL, _IOLBF, BUFSIZ);
- return write_archive(argc, argv, prefix, 1, output, 0);
+ return write_archive(argc, argv, prefix, output, 0);
}
diff --git a/builtin/blame.c b/builtin/blame.c
index f618392..3aae19a 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -120,7 +120,7 @@ struct origin {
*/
struct blame_entry *suspects;
mmfile_t file;
- unsigned char blob_sha1[20];
+ struct object_id blob_oid;
unsigned mode;
/* guilty gets set when shipping any suspects to the final
* blame list instead of other commits
@@ -154,8 +154,8 @@ static int diff_hunks(mmfile_t *file_a, mmfile_t *file_b,
*/
int textconv_object(const char *path,
unsigned mode,
- const unsigned char *sha1,
- int sha1_valid,
+ const struct object_id *oid,
+ int oid_valid,
char **buf,
unsigned long *buf_size)
{
@@ -163,7 +163,7 @@ int textconv_object(const char *path,
struct userdiff_driver *textconv;
df = alloc_filespec(path);
- fill_filespec(df, sha1, sha1_valid, mode);
+ fill_filespec(df, oid->hash, oid_valid, mode);
textconv = get_textconv(df);
if (!textconv) {
free_filespec(df);
@@ -188,15 +188,16 @@ static void fill_origin_blob(struct diff_options *opt,
num_read_blob++;
if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) &&
- textconv_object(o->path, o->mode, o->blob_sha1, 1, &file->ptr, &file_size))
+ textconv_object(o->path, o->mode, &o->blob_oid, 1, &file->ptr, &file_size))
;
else
- file->ptr = read_sha1_file(o->blob_sha1, &type, &file_size);
+ file->ptr = read_sha1_file(o->blob_oid.hash, &type,
+ &file_size);
file->size = file_size;
if (!file->ptr)
die("Cannot read blob %s for path %s",
- sha1_to_hex(o->blob_sha1),
+ oid_to_hex(&o->blob_oid),
o->path);
o->file = *file;
}
@@ -508,17 +509,17 @@ static struct origin *get_origin(struct scoreboard *sb,
*/
static int fill_blob_sha1_and_mode(struct origin *origin)
{
- if (!is_null_sha1(origin->blob_sha1))
+ if (!is_null_oid(&origin->blob_oid))
return 0;
if (get_tree_entry(origin->commit->object.oid.hash,
origin->path,
- origin->blob_sha1, &origin->mode))
+ origin->blob_oid.hash, &origin->mode))
goto error_out;
- if (sha1_object_info(origin->blob_sha1, NULL) != OBJ_BLOB)
+ if (sha1_object_info(origin->blob_oid.hash, NULL) != OBJ_BLOB)
goto error_out;
return 0;
error_out:
- hashclr(origin->blob_sha1);
+ oidclr(&origin->blob_oid);
origin->mode = S_IFINVALID;
return -1;
}
@@ -572,7 +573,7 @@ static struct origin *find_origin(struct scoreboard *sb,
if (!diff_queued_diff.nr) {
/* The path is the same as parent */
porigin = get_origin(sb, parent, origin->path);
- hashcpy(porigin->blob_sha1, origin->blob_sha1);
+ oidcpy(&porigin->blob_oid, &origin->blob_oid);
porigin->mode = origin->mode;
} else {
/*
@@ -598,7 +599,7 @@ static struct origin *find_origin(struct scoreboard *sb,
p->status);
case 'M':
porigin = get_origin(sb, parent, origin->path);
- hashcpy(porigin->blob_sha1, p->one->oid.hash);
+ oidcpy(&porigin->blob_oid, &p->one->oid);
porigin->mode = p->one->mode;
break;
case 'A':
@@ -644,7 +645,7 @@ static struct origin *find_rename(struct scoreboard *sb,
if ((p->status == 'R' || p->status == 'C') &&
!strcmp(p->two->path, origin->path)) {
porigin = get_origin(sb, parent, p->one->path);
- hashcpy(porigin->blob_sha1, p->one->oid.hash);
+ oidcpy(&porigin->blob_oid, &p->one->oid);
porigin->mode = p->one->mode;
break;
}
@@ -1308,7 +1309,7 @@ static void find_copy_in_parent(struct scoreboard *sb,
continue;
norigin = get_origin(sb, parent, p->one->path);
- hashcpy(norigin->blob_sha1, p->one->oid.hash);
+ oidcpy(&norigin->blob_oid, &p->one->oid);
norigin->mode = p->one->mode;
fill_origin_blob(&sb->revs->diffopt, norigin, &file_p);
if (!file_p.ptr)
@@ -1458,15 +1459,14 @@ static void pass_blame(struct scoreboard *sb, struct origin *origin, int opt)
porigin = find(sb, p, origin);
if (!porigin)
continue;
- if (!hashcmp(porigin->blob_sha1, origin->blob_sha1)) {
+ if (!oidcmp(&porigin->blob_oid, &origin->blob_oid)) {
pass_whole_blame(sb, origin, porigin);
origin_decref(porigin);
goto finish;
}
for (j = same = 0; j < i; j++)
if (sg_origin[j] &&
- !hashcmp(sg_origin[j]->blob_sha1,
- porigin->blob_sha1)) {
+ !oidcmp(&sg_origin[j]->blob_oid, &porigin->blob_oid)) {
same = 1;
break;
}
@@ -1700,13 +1700,23 @@ static void get_commit_info(struct commit *commit,
}
/*
+ * Write out any suspect information which depends on the path. This must be
+ * handled separately from emit_one_suspect_detail(), because a given commit
+ * may have changes in multiple paths. So this needs to appear each time
+ * we mention a new group.
+ *
* To allow LF and other nonportable characters in pathnames,
* they are c-style quoted as needed.
*/
-static void write_filename_info(const char *path)
+static void write_filename_info(struct origin *suspect)
{
+ if (suspect->previous) {
+ struct origin *prev = suspect->previous;
+ printf("previous %s ", oid_to_hex(&prev->commit->object.oid));
+ write_name_quoted(prev->path, stdout, '\n');
+ }
printf("filename ");
- write_name_quoted(path, stdout, '\n');
+ write_name_quoted(suspect->path, stdout, '\n');
}
/*
@@ -1735,11 +1745,6 @@ static int emit_one_suspect_detail(struct origin *suspect, int repeat)
printf("summary %s\n", ci.summary.buf);
if (suspect->commit->object.flags & UNINTERESTING)
printf("boundary\n");
- if (suspect->previous) {
- struct origin *prev = suspect->previous;
- printf("previous %s ", oid_to_hex(&prev->commit->object.oid));
- write_name_quoted(prev->path, stdout, '\n');
- }
commit_info_destroy(&ci);
@@ -1760,7 +1765,7 @@ static void found_guilty_entry(struct blame_entry *ent,
oid_to_hex(&suspect->commit->object.oid),
ent->s_lno + 1, ent->lno + 1, ent->num_lines);
emit_one_suspect_detail(suspect, 0);
- write_filename_info(suspect->path);
+ write_filename_info(suspect);
maybe_flush_or_die(stdout, "stdout");
}
pi->blamed_lines += ent->num_lines;
@@ -1884,7 +1889,7 @@ static void emit_porcelain_details(struct origin *suspect, int repeat)
{
if (emit_one_suspect_detail(suspect, repeat) ||
(suspect->commit->object.flags & MORE_THAN_ONE_PATH))
- write_filename_info(suspect->path);
+ write_filename_info(suspect);
}
static void emit_porcelain(struct scoreboard *sb, struct blame_entry *ent,
@@ -1941,7 +1946,7 @@ static void emit_other(struct scoreboard *sb, struct blame_entry *ent, int opt)
cp = nth_line(sb, ent->lno);
for (cnt = 0; cnt < ent->num_lines; cnt++) {
char ch;
- int length = (opt & OUTPUT_LONG_OBJECT_NAME) ? 40 : abbrev;
+ int length = (opt & OUTPUT_LONG_OBJECT_NAME) ? GIT_SHA1_HEXSZ : abbrev;
if (suspect->commit->object.flags & UNINTERESTING) {
if (blank_boundary)
@@ -2220,6 +2225,8 @@ static int git_blame_config(const char *var, const char *value, void *cb)
return 0;
}
+ if (git_diff_heuristic_config(var, value, cb) < 0)
+ return -1;
if (userdiff_config(var, value) < 0)
return -1;
@@ -2232,12 +2239,12 @@ static void verify_working_tree_path(struct commit *work_tree, const char *path)
int pos;
for (parents = work_tree->parents; parents; parents = parents->next) {
- const unsigned char *commit_sha1 = parents->item->object.oid.hash;
- unsigned char blob_sha1[20];
+ const struct object_id *commit_oid = &parents->item->object.oid;
+ struct object_id blob_oid;
unsigned mode;
- if (!get_tree_entry(commit_sha1, path, blob_sha1, &mode) &&
- sha1_object_info(blob_sha1, NULL) == OBJ_BLOB)
+ if (!get_tree_entry(commit_oid->hash, path, blob_oid.hash, &mode) &&
+ sha1_object_info(blob_oid.hash, NULL) == OBJ_BLOB)
return;
}
@@ -2251,13 +2258,13 @@ static void verify_working_tree_path(struct commit *work_tree, const char *path)
die("no such path '%s' in HEAD", path);
}
-static struct commit_list **append_parent(struct commit_list **tail, const unsigned char *sha1)
+static struct commit_list **append_parent(struct commit_list **tail, const struct object_id *oid)
{
struct commit *parent;
- parent = lookup_commit_reference(sha1);
+ parent = lookup_commit_reference(oid->hash);
if (!parent)
- die("no such commit %s", sha1_to_hex(sha1));
+ die("no such commit %s", oid_to_hex(oid));
return &commit_list_insert(parent, tail)->next;
}
@@ -2274,10 +2281,10 @@ static void append_merge_parents(struct commit_list **tail)
}
while (!strbuf_getwholeline_fd(&line, merge_head, '\n')) {
- unsigned char sha1[20];
- if (line.len < 40 || get_sha1_hex(line.buf, sha1))
+ struct object_id oid;
+ if (line.len < GIT_SHA1_HEXSZ || get_oid_hex(line.buf, &oid))
die("unknown line in '%s': %s", git_path_merge_head(), line.buf);
- tail = append_parent(tail, sha1);
+ tail = append_parent(tail, &oid);
}
close(merge_head);
strbuf_release(&line);
@@ -2306,7 +2313,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
struct commit *commit;
struct origin *origin;
struct commit_list **parent_tail, *parent;
- unsigned char head_sha1[20];
+ struct object_id head_oid;
struct strbuf buf = STRBUF_INIT;
const char *ident;
time_t now;
@@ -2322,10 +2329,10 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
commit->date = now;
parent_tail = &commit->parents;
- if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_sha1, NULL))
+ if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_oid.hash, NULL))
die("no such ref: HEAD");
- parent_tail = append_parent(parent_tail, head_sha1);
+ parent_tail = append_parent(parent_tail, &head_oid);
append_merge_parents(parent_tail);
verify_working_tree_path(commit, path);
@@ -2366,7 +2373,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
switch (st.st_mode & S_IFMT) {
case S_IFREG:
if (DIFF_OPT_TST(opt, ALLOW_TEXTCONV) &&
- textconv_object(read_from, mode, null_sha1, 0, &buf_ptr, &buf_len))
+ textconv_object(read_from, mode, &null_oid, 0, &buf_ptr, &buf_len))
strbuf_attach(&buf, buf_ptr, buf_len, buf_len + 1);
else if (strbuf_read_file(&buf, read_from, st.st_size) != st.st_size)
die_errno("cannot open or read '%s'", read_from);
@@ -2388,7 +2395,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
convert_to_git(path, buf.buf, buf.len, &buf, 0);
origin->file.ptr = buf.buf;
origin->file.size = buf.len;
- pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_sha1);
+ pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_oid.hash);
/*
* Read the current index, replace the path entry with
@@ -2410,7 +2417,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
}
size = cache_entry_size(len);
ce = xcalloc(1, size);
- hashcpy(ce->sha1, origin->blob_sha1);
+ oidcpy(&ce->oid, &origin->blob_oid);
memcpy(ce->name, path, len);
ce->ce_flags = create_ce_flags(0);
ce->ce_namelen = len;
@@ -2454,6 +2461,41 @@ static char *prepare_final(struct scoreboard *sb)
return xstrdup_or_null(name);
}
+static const char *dwim_reverse_initial(struct scoreboard *sb)
+{
+ /*
+ * DWIM "git blame --reverse ONE -- PATH" as
+ * "git blame --reverse ONE..HEAD -- PATH" but only do so
+ * when it makes sense.
+ */
+ struct object *obj;
+ struct commit *head_commit;
+ unsigned char head_sha1[20];
+
+ if (sb->revs->pending.nr != 1)
+ return NULL;
+
+ /* Is that sole rev a committish? */
+ obj = sb->revs->pending.objects[0].item;
+ obj = deref_tag(obj, NULL, 0);
+ if (obj->type != OBJ_COMMIT)
+ return NULL;
+
+ /* Do we have HEAD? */
+ if (!resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, head_sha1, NULL))
+ return NULL;
+ head_commit = lookup_commit_reference_gently(head_sha1, 1);
+ if (!head_commit)
+ return NULL;
+
+ /* Turn "ONE" into "ONE..HEAD" then */
+ obj->flags |= UNINTERESTING;
+ add_pending_object(sb->revs, &head_commit->object, "HEAD");
+
+ sb->final = (struct commit *)obj;
+ return sb->revs->pending.objects[0].name;
+}
+
static char *prepare_initial(struct scoreboard *sb)
{
int i;
@@ -2472,14 +2514,17 @@ static char *prepare_initial(struct scoreboard *sb)
if (obj->type != OBJ_COMMIT)
die("Non commit %s?", revs->pending.objects[i].name);
if (sb->final)
- die("More than one commit to dig down to %s and %s?",
+ die("More than one commit to dig up from, %s and %s?",
revs->pending.objects[i].name,
final_commit_name);
sb->final = (struct commit *) obj;
final_commit_name = revs->pending.objects[i].name;
}
+
if (!final_commit_name)
- die("No commit to dig down to?");
+ final_commit_name = dwim_reverse_initial(sb);
+ if (!final_commit_name)
+ die("No commit to dig up from?");
return xstrdup(final_commit_name);
}
@@ -2550,6 +2595,15 @@ 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),
+
+ /*
+ * The following two options are parsed by parse_revision_opt()
+ * and are only included here to get included in the "-h"
+ * output:
+ */
+ { OPTION_LOWLEVEL_CALLBACK, 0, "indent-heuristic", NULL, NULL, N_("Use an experimental indent-based heuristic to improve diffs"), PARSE_OPT_NOARG, parse_opt_unknown_cb },
+ { OPTION_LOWLEVEL_CALLBACK, 0, "compaction-heuristic", NULL, NULL, N_("Use an experimental blank-line-based heuristic to improve diffs"), PARSE_OPT_NOARG, parse_opt_unknown_cb },
+
OPT_BIT(0, "minimal", &xdl_opts, N_("Spend extra cycles to find better match"), XDF_NEED_MINIMAL),
OPT_STRING('S', NULL, &revs_file, N_("file"), N_("Use revisions from <file> instead of calling git-rev-list")),
OPT_STRING(0, "contents", &contents_from, N_("file"), N_("Use <file>'s contents as the final image")),
@@ -2596,19 +2650,22 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
}
parse_done:
no_whole_file_rename = !DIFF_OPT_TST(&revs.diffopt, FOLLOW_RENAMES);
+ xdl_opts |= revs.diffopt.xdl_opts & (XDF_COMPACTION_HEURISTIC | XDF_INDENT_HEURISTIC);
DIFF_OPT_CLR(&revs.diffopt, FOLLOW_RENAMES);
argc = parse_options_end(&ctx);
if (incremental || (output_option & OUTPUT_PORCELAIN)) {
if (show_progress > 0)
- die("--progress can't be used with --incremental or porcelain formats");
+ die(_("--progress can't be used with --incremental or porcelain formats"));
show_progress = 0;
} else if (show_progress < 0)
show_progress = isatty(2);
- if (0 < abbrev)
+ if (0 < abbrev && abbrev < GIT_SHA1_HEXSZ)
/* one more abbrev length is needed for the boundary commit */
abbrev++;
+ else if (!abbrev)
+ abbrev = GIT_SHA1_HEXSZ;
if (revs_file && read_ancestry(revs_file))
die_errno("reading graft file '%s' failed", revs_file);
@@ -2727,7 +2784,7 @@ parse_done:
sb.commits.compare = compare_commits_by_commit_date;
}
else if (contents_from)
- die("--contents and --reverse do not blend well.");
+ die(_("--contents and --reverse do not blend well."));
else {
final_commit_name = prepare_initial(&sb);
sb.commits.compare = compare_commits_by_reverse_commit_date;
@@ -2747,12 +2804,12 @@ parse_done:
add_pending_object(&revs, &(sb.final->object), ":");
}
else if (contents_from)
- die("Cannot use --contents with final commit object name");
+ die(_("cannot use --contents with final commit object name"));
if (reverse && revs.first_parent_only) {
final_commit = find_single_final(sb.revs, NULL);
if (!final_commit)
- die("--reverse and --first-parent together require specified latest commit");
+ die(_("--reverse and --first-parent together require specified latest commit"));
}
/*
@@ -2779,7 +2836,7 @@ parse_done:
}
if (oidcmp(&c->object.oid, &sb.final->object.oid))
- die("--reverse --first-parent together require range along first-parent chain");
+ die(_("--reverse --first-parent together require range along first-parent chain"));
}
if (is_null_oid(&sb.final->object.oid)) {
@@ -2790,19 +2847,19 @@ parse_done:
else {
o = get_origin(&sb, sb.final, path);
if (fill_blob_sha1_and_mode(o))
- die("no such path %s in %s", path, final_commit_name);
+ die(_("no such path %s in %s"), path, final_commit_name);
if (DIFF_OPT_TST(&sb.revs->diffopt, ALLOW_TEXTCONV) &&
- textconv_object(path, o->mode, o->blob_sha1, 1, (char **) &sb.final_buf,
+ textconv_object(path, o->mode, &o->blob_oid, 1, (char **) &sb.final_buf,
&sb.final_buf_size))
;
else
- sb.final_buf = read_sha1_file(o->blob_sha1, &type,
+ sb.final_buf = read_sha1_file(o->blob_oid.hash, &type,
&sb.final_buf_size);
if (!sb.final_buf)
- die("Cannot read blob %s for path %s",
- sha1_to_hex(o->blob_sha1),
+ die(_("cannot read blob %s for path %s"),
+ oid_to_hex(&o->blob_oid),
path);
}
num_read_blob++;
@@ -2820,7 +2877,9 @@ parse_done:
&bottom, &top, sb.path))
usage(blame_usage);
if (lno < top || ((lno || bottom) && lno < bottom))
- die("file %s has only %lu lines", path, lno);
+ die(Q_("file %s has only %lu line",
+ "file %s has only %lu lines",
+ lno), path, lno);
if (bottom < 1)
bottom = 1;
if (top < 1)
diff --git a/builtin/branch.c b/builtin/branch.c
index 6810c3a..4757075 100644
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -531,7 +531,7 @@ static void print_ref_list(struct ref_filter *filter, struct ref_sorting *sortin
static void reject_rebase_or_bisect_branch(const char *target)
{
- struct worktree **worktrees = get_worktrees();
+ struct worktree **worktrees = get_worktrees(0);
int i;
for (i = 0; worktrees[i]; i++) {
@@ -657,7 +657,7 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
OPT_SET_INT( 0, "set-upstream", &track, N_("change upstream info"),
BRANCH_TRACK_OVERRIDE),
OPT_STRING('u', "set-upstream-to", &new_upstream, N_("upstream"), N_("change the upstream info")),
- OPT_BOOL(0, "unset-upstream", &unset_upstream, "Unset the upstream info"),
+ OPT_BOOL(0, "unset-upstream", &unset_upstream, N_("Unset the upstream info")),
OPT__COLOR(&branch_use_color, N_("use colored output")),
OPT_SET_INT('r', "remotes", &filter.kind, N_("act on remote-tracking branches"),
FILTER_REFS_REMOTES),
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 560f6c2..30383e9 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -17,32 +17,63 @@ struct batch_options {
int print_contents;
int buffer_output;
int all_objects;
+ int cmdmode; /* may be 'w' or 'c' for --filters or --textconv */
const char *format;
};
+static const char *force_path;
+
+static int filter_object(const char *path, unsigned mode,
+ const struct object_id *oid,
+ char **buf, unsigned long *size)
+{
+ enum object_type type;
+
+ *buf = read_sha1_file(oid->hash, &type, size);
+ if (!*buf)
+ return error(_("cannot read object %s '%s'"),
+ oid_to_hex(oid), path);
+ if ((type == OBJ_BLOB) && S_ISREG(mode)) {
+ struct strbuf strbuf = STRBUF_INIT;
+ if (convert_to_working_tree(path, *buf, *size, &strbuf)) {
+ free(*buf);
+ *size = strbuf.len;
+ *buf = strbuf_detach(&strbuf, NULL);
+ }
+ }
+
+ return 0;
+}
+
static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
int unknown_type)
{
- unsigned char sha1[20];
+ struct object_id oid;
enum object_type type;
char *buf;
unsigned long size;
struct object_context obj_context;
- struct object_info oi = {NULL};
+ struct object_info oi = OBJECT_INFO_INIT;
struct strbuf sb = STRBUF_INIT;
unsigned flags = LOOKUP_REPLACE_OBJECT;
+ const char *path = force_path;
if (unknown_type)
flags |= LOOKUP_UNKNOWN_OBJECT;
- if (get_sha1_with_context(obj_name, 0, sha1, &obj_context))
+ if (get_sha1_with_context(obj_name, 0, oid.hash, &obj_context))
die("Not a valid object name %s", obj_name);
+ if (!path)
+ path = obj_context.path;
+ if (obj_context.mode == S_IFINVALID)
+ obj_context.mode = 0100644;
+
buf = NULL;
switch (opt) {
case 't':
oi.typename = &sb;
- if (sha1_object_info_extended(sha1, &oi, flags) < 0)
+ if (sha1_object_info_extended(oid.hash, &oi, flags) < 0)
die("git cat-file: could not get object info");
if (sb.len) {
printf("%s\n", sb.buf);
@@ -53,24 +84,34 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
case 's':
oi.sizep = &size;
- if (sha1_object_info_extended(sha1, &oi, flags) < 0)
+ if (sha1_object_info_extended(oid.hash, &oi, flags) < 0)
die("git cat-file: could not get object info");
printf("%lu\n", size);
return 0;
case 'e':
- return !has_sha1_file(sha1);
+ return !has_object_file(&oid);
+
+ case 'w':
+ if (!path[0])
+ die("git cat-file --filters %s: <object> must be "
+ "<sha1:path>", obj_name);
+
+ if (filter_object(path, obj_context.mode,
+ &oid, &buf, &size))
+ return -1;
+ break;
case 'c':
- if (!obj_context.path[0])
+ if (!path[0])
die("git cat-file --textconv %s: <object> must be <sha1:path>",
obj_name);
- if (textconv_object(obj_context.path, obj_context.mode, sha1, 1, &buf, &size))
+ if (textconv_object(path, obj_context.mode, &oid, 1, &buf, &size))
break;
case 'p':
- type = sha1_object_info(sha1, NULL);
+ type = sha1_object_info(oid.hash, NULL);
if (type < 0)
die("Not a valid object name %s", obj_name);
@@ -83,8 +124,8 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
}
if (type == OBJ_BLOB)
- return stream_blob_to_fd(1, sha1, NULL, 0);
- buf = read_sha1_file(sha1, &type, &size);
+ return stream_blob_to_fd(1, &oid, NULL, 0);
+ buf = read_sha1_file(oid.hash, &type, &size);
if (!buf)
die("Cannot read object %s", obj_name);
@@ -93,19 +134,19 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
case 0:
if (type_from_string(exp_type) == OBJ_BLOB) {
- unsigned char blob_sha1[20];
- if (sha1_object_info(sha1, NULL) == OBJ_TAG) {
- char *buffer = read_sha1_file(sha1, &type, &size);
+ struct object_id blob_oid;
+ if (sha1_object_info(oid.hash, NULL) == OBJ_TAG) {
+ char *buffer = read_sha1_file(oid.hash, &type, &size);
const char *target;
if (!skip_prefix(buffer, "object ", &target) ||
- get_sha1_hex(target, blob_sha1))
- die("%s not a valid tag", sha1_to_hex(sha1));
+ get_oid_hex(target, &blob_oid))
+ die("%s not a valid tag", oid_to_hex(&oid));
free(buffer);
} else
- hashcpy(blob_sha1, sha1);
+ oidcpy(&blob_oid, &oid);
- if (sha1_object_info(blob_sha1, NULL) == OBJ_BLOB)
- return stream_blob_to_fd(1, blob_sha1, NULL, 0);
+ if (sha1_object_info(blob_oid.hash, NULL) == OBJ_BLOB)
+ return stream_blob_to_fd(1, &blob_oid, NULL, 0);
/*
* we attempted to dereference a tag to a blob
* and failed; there may be new dereference
@@ -113,7 +154,7 @@ 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(sha1, exp_type, &size, NULL);
+ buf = read_object_with_reference(oid.hash, exp_type, &size, NULL);
break;
default:
@@ -128,12 +169,12 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
}
struct expand_data {
- unsigned char sha1[20];
+ struct object_id oid;
enum object_type type;
unsigned long size;
off_t disk_size;
const char *rest;
- unsigned char delta_base_sha1[20];
+ struct object_id delta_base_oid;
/*
* If mark_query is true, we do not expand anything, but rather
@@ -176,7 +217,7 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len,
if (is_atom("objectname", atom, len)) {
if (!data->mark_query)
- strbuf_addstr(sb, sha1_to_hex(data->sha1));
+ strbuf_addstr(sb, oid_to_hex(&data->oid));
} else if (is_atom("objecttype", atom, len)) {
if (data->mark_query)
data->info.typep = &data->type;
@@ -199,9 +240,10 @@ static void expand_atom(struct strbuf *sb, const char *atom, int len,
strbuf_addstr(sb, data->rest);
} else if (is_atom("deltabase", atom, len)) {
if (data->mark_query)
- data->info.delta_base_sha1 = data->delta_base_sha1;
+ data->info.delta_base_sha1 = data->delta_base_oid.hash;
else
- strbuf_addstr(sb, sha1_to_hex(data->delta_base_sha1));
+ strbuf_addstr(sb,
+ oid_to_hex(&data->delta_base_oid));
} else
die("unknown format element: %.*s", len, atom);
}
@@ -232,28 +274,53 @@ static void batch_write(struct batch_options *opt, const void *data, int len)
static void print_object_or_die(struct batch_options *opt, struct expand_data *data)
{
- const unsigned char *sha1 = data->sha1;
+ const struct object_id *oid = &data->oid;
assert(data->info.typep);
if (data->type == OBJ_BLOB) {
if (opt->buffer_output)
fflush(stdout);
- if (stream_blob_to_fd(1, sha1, NULL, 0) < 0)
- die("unable to stream %s to stdout", sha1_to_hex(sha1));
+ if (opt->cmdmode) {
+ char *contents;
+ unsigned long size;
+
+ if (!data->rest)
+ die("missing path for '%s'", oid_to_hex(oid));
+
+ if (opt->cmdmode == 'w') {
+ if (filter_object(data->rest, 0100644, oid,
+ &contents, &size))
+ die("could not convert '%s' %s",
+ oid_to_hex(oid), data->rest);
+ } else if (opt->cmdmode == 'c') {
+ enum object_type type;
+ if (!textconv_object(data->rest, 0100644, oid,
+ 1, &contents, &size))
+ contents = read_sha1_file(oid->hash, &type,
+ &size);
+ if (!contents)
+ die("could not convert '%s' %s",
+ oid_to_hex(oid), data->rest);
+ } else
+ die("BUG: invalid cmdmode: %c", opt->cmdmode);
+ batch_write(opt, contents, size);
+ free(contents);
+ } else if (stream_blob_to_fd(1, oid, NULL, 0) < 0)
+ die("unable to stream %s to stdout", oid_to_hex(oid));
}
else {
enum object_type type;
unsigned long size;
void *contents;
- contents = read_sha1_file(sha1, &type, &size);
+ contents = read_sha1_file(oid->hash, &type, &size);
if (!contents)
- die("object %s disappeared", sha1_to_hex(sha1));
+ die("object %s disappeared", oid_to_hex(oid));
if (type != data->type)
- die("object %s changed type!?", sha1_to_hex(sha1));
+ die("object %s changed type!?", oid_to_hex(oid));
if (data->info.sizep && size != data->size)
- die("object %s changed size!?", sha1_to_hex(sha1));
+ die("object %s changed size!?", oid_to_hex(oid));
batch_write(opt, contents, size);
free(contents);
@@ -266,8 +333,9 @@ static void batch_object_write(const char *obj_name, struct batch_options *opt,
struct strbuf buf = STRBUF_INIT;
if (!data->skip_object_info &&
- sha1_object_info_extended(data->sha1, &data->info, LOOKUP_REPLACE_OBJECT) < 0) {
- printf("%s missing\n", obj_name ? obj_name : sha1_to_hex(data->sha1));
+ sha1_object_info_extended(data->oid.hash, &data->info, LOOKUP_REPLACE_OBJECT) < 0) {
+ printf("%s missing\n",
+ obj_name ? obj_name : oid_to_hex(&data->oid));
fflush(stdout);
return;
}
@@ -290,7 +358,7 @@ static void batch_one_object(const char *obj_name, struct batch_options *opt,
int flags = opt->follow_symlinks ? GET_SHA1_FOLLOW_SYMLINKS : 0;
enum follow_symlinks_result result;
- result = get_sha1_with_context(obj_name, flags, data->sha1, &ctx);
+ result = get_sha1_with_context(obj_name, flags, data->oid.hash, &ctx);
if (result != FOUND) {
switch (result) {
case MISSING_OBJECT:
@@ -333,11 +401,12 @@ struct object_cb_data {
struct expand_data *expand;
};
-static void batch_object_cb(const unsigned char sha1[20], void *vdata)
+static int batch_object_cb(const unsigned char sha1[20], void *vdata)
{
struct object_cb_data *data = vdata;
- hashcpy(data->expand->sha1, sha1);
+ hashcpy(data->expand->oid.hash, sha1);
batch_object_write(NULL, data->opt, data->expand);
+ return 0;
}
static int batch_loose_object(const unsigned char *sha1,
@@ -376,10 +445,11 @@ static int batch_objects(struct batch_options *opt)
data.mark_query = 1;
strbuf_expand(&buf, opt->format, expand_format, &data);
data.mark_query = 0;
+ if (opt->cmdmode)
+ data.split_on_whitespace = 1;
if (opt->all_objects) {
- struct object_info empty;
- memset(&empty, 0, sizeof(empty));
+ struct object_info empty = OBJECT_INFO_INIT;
if (!memcmp(&data.info, &empty, sizeof(empty)))
data.skip_object_info = 1;
}
@@ -440,8 +510,8 @@ static int batch_objects(struct batch_options *opt)
}
static const char * const cat_file_usage[] = {
- N_("git cat-file (-t [--allow-unknown-type] | -s [--allow-unknown-type] | -e | -p | <type> | --textconv) <object>"),
- N_("git cat-file (--batch | --batch-check) [--follow-symlinks]"),
+ N_("git cat-file (-t [--allow-unknown-type] | -s [--allow-unknown-type] | -e | -p | <type> | --textconv | --filters) [--path=<path>] <object>"),
+ N_("git cat-file (--batch | --batch-check) [--follow-symlinks] [--textconv | --filters]"),
NULL
};
@@ -486,6 +556,10 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
OPT_CMDMODE('p', NULL, &opt, N_("pretty-print object's content"), 'p'),
OPT_CMDMODE(0, "textconv", &opt,
N_("for blob objects, run textconv on object's content"), 'c'),
+ OPT_CMDMODE(0, "filters", &opt,
+ N_("for blob objects, run filters on object's content"), 'w'),
+ OPT_STRING(0, "path", &force_path, N_("blob"),
+ N_("use a specific path for --textconv/--filters")),
OPT_BOOL(0, "allow-unknown-type", &unknown_type,
N_("allow -s and -t to work with broken/corrupt objects")),
OPT_BOOL(0, "buffer", &batch.buffer_output, N_("buffer --batch output")),
@@ -508,7 +582,9 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
argc = parse_options(argc, argv, prefix, options, cat_file_usage, 0);
if (opt) {
- if (argc == 1)
+ if (batch.enabled && (opt == 'c' || opt == 'w'))
+ batch.cmdmode = opt;
+ else if (argc == 1)
obj_name = argv[0];
else
usage_with_options(cat_file_usage, options);
@@ -520,14 +596,28 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
} else
usage_with_options(cat_file_usage, options);
}
- if (batch.enabled && (opt || argc)) {
- usage_with_options(cat_file_usage, options);
+ if (batch.enabled) {
+ if (batch.cmdmode != opt || argc)
+ usage_with_options(cat_file_usage, options);
+ if (batch.cmdmode && batch.all_objects)
+ die("--batch-all-objects cannot be combined with "
+ "--textconv nor with --filters");
}
if ((batch.follow_symlinks || batch.all_objects) && !batch.enabled) {
usage_with_options(cat_file_usage, options);
}
+ if (force_path && opt != 'c' && opt != 'w') {
+ error("--path=<path> needs --textconv or --filters");
+ usage_with_options(cat_file_usage, options);
+ }
+
+ if (force_path && batch.enabled) {
+ error("--path=<path> incompatible with --batch");
+ usage_with_options(cat_file_usage, options);
+ }
+
if (batch.buffer_output < 0)
batch.buffer_output = batch.all_objects;
diff --git a/builtin/checkout-index.c b/builtin/checkout-index.c
index 92c6967..30a49d9 100644
--- a/builtin/checkout-index.c
+++ b/builtin/checkout-index.c
@@ -16,7 +16,7 @@ static int checkout_stage; /* default to checkout stage0 */
static int to_tempfile;
static char topath[4][TEMPORARY_FILENAME_LENGTH + 1];
-static struct checkout state;
+static struct checkout state = CHECKOUT_INIT;
static void write_tempfile_record(const char *name, const char *prefix)
{
diff --git a/builtin/checkout.c b/builtin/checkout.c
index 899bd8d..512492a 100644
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -76,7 +76,7 @@ static int update_some(const unsigned char *sha1, struct strbuf *base,
len = base->len + strlen(pathname);
ce = xcalloc(1, cache_entry_size(len));
- hashcpy(ce->sha1, sha1);
+ hashcpy(ce->oid.hash, sha1);
memcpy(ce->name, base->buf, base->len);
memcpy(ce->name + base->len, pathname, len - base->len);
ce->ce_flags = create_ce_flags(0) | CE_UPDATE;
@@ -92,7 +92,7 @@ static int update_some(const unsigned char *sha1, struct strbuf *base,
if (pos >= 0) {
struct cache_entry *old = active_cache[pos];
if (ce->ce_mode == old->ce_mode &&
- !hashcmp(ce->sha1, old->sha1)) {
+ !oidcmp(&ce->oid, &old->oid)) {
old->ce_flags |= CE_UPDATE;
free(ce);
return 0;
@@ -175,9 +175,9 @@ static int checkout_merged(int pos, const struct checkout *state)
const char *path = ce->name;
mmfile_t ancestor, ours, theirs;
int status;
- unsigned char sha1[20];
+ struct object_id oid;
mmbuffer_t result_buf;
- unsigned char threeway[3][20];
+ struct object_id threeway[3];
unsigned mode = 0;
memset(threeway, 0, sizeof(threeway));
@@ -186,18 +186,18 @@ static int checkout_merged(int pos, const struct checkout *state)
stage = ce_stage(ce);
if (!stage || strcmp(path, ce->name))
break;
- hashcpy(threeway[stage - 1], ce->sha1);
+ oidcpy(&threeway[stage - 1], &ce->oid);
if (stage == 2)
mode = create_ce_mode(ce->ce_mode);
pos++;
ce = active_cache[pos];
}
- if (is_null_sha1(threeway[1]) || is_null_sha1(threeway[2]))
+ if (is_null_oid(&threeway[1]) || is_null_oid(&threeway[2]))
return error(_("path '%s' does not have necessary versions"), path);
- read_mmblob(&ancestor, threeway[0]);
- read_mmblob(&ours, threeway[1]);
- read_mmblob(&theirs, threeway[2]);
+ read_mmblob(&ancestor, &threeway[0]);
+ read_mmblob(&ours, &threeway[1]);
+ read_mmblob(&theirs, &threeway[2]);
/*
* NEEDSWORK: re-create conflicts from merges with
@@ -226,9 +226,9 @@ static int checkout_merged(int pos, const struct checkout *state)
* object database even when it may contain conflicts).
*/
if (write_sha1_file(result_buf.ptr, result_buf.size,
- blob_type, sha1))
+ blob_type, oid.hash))
die(_("Unable to add merge result for '%s'"), path);
- ce = make_cache_entry(mode, sha1, path, 2, 0);
+ ce = make_cache_entry(mode, oid.hash, path, 2, 0);
if (!ce)
die(_("make_cache_entry failed for path '%s'"), path);
status = checkout_entry(ce, state, NULL);
@@ -239,9 +239,9 @@ static int checkout_paths(const struct checkout_opts *opts,
const char *revision)
{
int pos;
- struct checkout state;
+ struct checkout state = CHECKOUT_INIT;
static char *ps_matched;
- unsigned char rev[20];
+ struct object_id rev;
struct commit *head;
int errs = 0;
struct lock_file *lock_file;
@@ -352,7 +352,6 @@ static int checkout_paths(const struct checkout_opts *opts,
return 1;
/* Now we are committed to check them out */
- memset(&state, 0, sizeof(state));
state.force = 1;
state.refresh_cache = 1;
state.istate = &the_index;
@@ -374,8 +373,8 @@ static int checkout_paths(const struct checkout_opts *opts,
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(rev, 1);
+ read_ref_full("HEAD", 0, rev.hash, NULL);
+ head = lookup_commit_reference_gently(rev.hash, 1);
errs |= post_checkout_hook(head, head, 0);
return errs;
@@ -808,11 +807,11 @@ static int switch_branches(const struct checkout_opts *opts,
int ret = 0;
struct branch_info old;
void *path_to_free;
- unsigned char rev[20];
+ struct object_id rev;
int flag, writeout_error = 0;
memset(&old, 0, sizeof(old));
- old.path = path_to_free = resolve_refdup("HEAD", 0, rev, &flag);
- old.commit = lookup_commit_reference_gently(rev, 1);
+ old.path = path_to_free = resolve_refdup("HEAD", 0, rev.hash, &flag);
+ old.commit = lookup_commit_reference_gently(rev.hash, 1);
if (!(flag & REF_ISSYMREF))
old.path = NULL;
@@ -860,7 +859,7 @@ static int git_checkout_config(const char *var, const char *value, void *cb)
struct tracking_name_data {
/* const */ char *src_ref;
char *dst_ref;
- unsigned char *dst_sha1;
+ struct object_id *dst_oid;
int unique;
};
@@ -871,7 +870,7 @@ static int check_tracking_name(struct remote *remote, void *cb_data)
memset(&query, 0, sizeof(struct refspec));
query.src = cb->src_ref;
if (remote_find_tracking(remote, &query) ||
- get_sha1(query.dst, cb->dst_sha1)) {
+ get_oid(query.dst, cb->dst_oid)) {
free(query.dst);
return 0;
}
@@ -884,13 +883,13 @@ static int check_tracking_name(struct remote *remote, void *cb_data)
return 0;
}
-static const char *unique_tracking_name(const char *name, unsigned char *sha1)
+static const char *unique_tracking_name(const char *name, struct object_id *oid)
{
struct tracking_name_data cb_data = { NULL, NULL, NULL, 1 };
char src_ref[PATH_MAX];
snprintf(src_ref, PATH_MAX, "refs/heads/%s", name);
cb_data.src_ref = src_ref;
- cb_data.dst_sha1 = sha1;
+ cb_data.dst_oid = oid;
for_each_remote(check_tracking_name, &cb_data);
if (cb_data.unique)
return cb_data.dst_ref;
@@ -902,12 +901,12 @@ static int parse_branchname_arg(int argc, const char **argv,
int dwim_new_local_branch_ok,
struct branch_info *new,
struct checkout_opts *opts,
- unsigned char rev[20])
+ struct object_id *rev)
{
struct tree **source_tree = &opts->source_tree;
const char **new_branch = &opts->new_branch;
int argcount = 0;
- unsigned char branch_rev[20];
+ struct object_id branch_rev;
const char *arg;
int dash_dash_pos;
int has_dash_dash = 0;
@@ -973,7 +972,7 @@ static int parse_branchname_arg(int argc, const char **argv,
if (!strcmp(arg, "-"))
arg = "@{-1}";
- if (get_sha1_mb(arg, rev)) {
+ if (get_oid_mb(arg, rev)) {
/*
* Either case (3) or (4), with <something> not being
* a commit, or an attempt to use case (1) with an
@@ -1022,15 +1021,15 @@ static int parse_branchname_arg(int argc, const char **argv,
setup_branch_path(new);
if (!check_refname_format(new->path, 0) &&
- !read_ref(new->path, branch_rev))
- hashcpy(rev, branch_rev);
+ !read_ref(new->path, branch_rev.hash))
+ oidcpy(rev, &branch_rev);
else
new->path = NULL; /* not an existing branch */
- new->commit = lookup_commit_reference_gently(rev, 1);
+ new->commit = lookup_commit_reference_gently(rev->hash, 1);
if (!new->commit) {
/* not a commit */
- *source_tree = parse_tree_indirect(rev);
+ *source_tree = parse_tree_indirect(rev->hash);
} else {
parse_commit_or_die(new->commit);
*source_tree = new->commit->tree;
@@ -1108,9 +1107,9 @@ static int checkout_branch(struct checkout_opts *opts,
if (new->path && !opts->force_detach && !opts->new_branch &&
!opts->ignore_other_worktrees) {
- unsigned char sha1[20];
+ struct object_id oid;
int flag;
- char *head_ref = resolve_refdup("HEAD", 0, sha1, &flag);
+ char *head_ref = resolve_refdup("HEAD", 0, oid.hash, &flag);
if (head_ref &&
(!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path)))
die_if_checked_out(new->path, 1);
@@ -1118,11 +1117,11 @@ static int checkout_branch(struct checkout_opts *opts,
}
if (!new->commit && opts->new_branch) {
- unsigned char rev[20];
+ struct object_id rev;
int flag;
- if (!read_ref_full("HEAD", 0, rev, &flag) &&
- (flag & REF_ISSYMREF) && is_null_sha1(rev))
+ if (!read_ref_full("HEAD", 0, rev.hash, &flag) &&
+ (flag & REF_ISSYMREF) && is_null_oid(&rev))
return switch_unborn_to_new_branch(opts);
}
return switch_branches(opts, new);
@@ -1232,14 +1231,14 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
* remote branches, erroring out for invalid or ambiguous cases.
*/
if (argc) {
- unsigned char rev[20];
+ struct object_id rev;
int dwim_ok =
!opts.patch_mode &&
dwim_new_local_branch &&
opts.track == BRANCH_TRACK_UNSPECIFIED &&
!opts.new_branch;
int n = parse_branchname_arg(argc, argv, dwim_ok,
- &new, &opts, rev);
+ &new, &opts, &rev);
argv += n;
argc -= n;
}
diff --git a/builtin/clone.c b/builtin/clone.c
index a35d622..6c76a6e 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -41,16 +41,19 @@ static const char * const builtin_clone_usage[] = {
static int option_no_checkout, option_bare, option_mirror, option_single_branch = -1;
static int option_local = -1, option_no_hardlinks, option_shared, option_recursive;
static int option_shallow_submodules;
-static char *option_template, *option_depth;
+static int deepen;
+static char *option_template, *option_depth, *option_since;
static char *option_origin = NULL;
static char *option_branch = NULL;
+static struct string_list option_not = STRING_LIST_INIT_NODUP;
static const char *real_git_dir;
static char *option_upload_pack = "git-upload-pack";
static int option_verbosity;
static int option_progress = -1;
static enum transport_family family;
static struct string_list option_config = STRING_LIST_INIT_NODUP;
-static struct string_list option_reference = STRING_LIST_INIT_NODUP;
+static struct string_list option_required_reference = STRING_LIST_INIT_NODUP;
+static struct string_list option_optional_reference = STRING_LIST_INIT_NODUP;
static int option_dissociate;
static int max_jobs = -1;
@@ -79,8 +82,10 @@ static struct option builtin_clone_options[] = {
N_("number of submodules cloned in parallel")),
OPT_STRING(0, "template", &option_template, N_("template-directory"),
N_("directory from which templates will be used")),
- OPT_STRING_LIST(0, "reference", &option_reference, N_("repo"),
+ OPT_STRING_LIST(0, "reference", &option_required_reference, N_("repo"),
N_("reference repository")),
+ OPT_STRING_LIST(0, "reference-if-able", &option_optional_reference,
+ N_("repo"), N_("reference repository")),
OPT_BOOL(0, "dissociate", &option_dissociate,
N_("use --reference only while cloning")),
OPT_STRING('o', "origin", &option_origin, N_("name"),
@@ -91,6 +96,10 @@ static struct option builtin_clone_options[] = {
N_("path to git-upload-pack on the remote")),
OPT_STRING(0, "depth", &option_depth, N_("depth"),
N_("create a shallow clone of that depth")),
+ OPT_STRING(0, "shallow-since", &option_since, N_("time"),
+ N_("create a shallow clone since a specific time")),
+ OPT_STRING_LIST(0, "shallow-exclude", &option_not, N_("revision"),
+ N_("deepen history of shallow clone by excluding rev")),
OPT_BOOL(0, "single-branch", &option_single_branch,
N_("clone only one branch, HEAD or --branch")),
OPT_BOOL(0, "shallow-submodules", &option_shallow_submodules,
@@ -282,50 +291,37 @@ static void strip_trailing_slashes(char *dir)
static int add_one_reference(struct string_list_item *item, void *cb_data)
{
- char *ref_git;
- const char *repo;
- struct strbuf alternate = STRBUF_INIT;
-
- /* Beware: read_gitfile(), real_path() and mkpath() return static buffer */
- ref_git = xstrdup(real_path(item->string));
-
- repo = read_gitfile(ref_git);
- if (!repo)
- repo = read_gitfile(mkpath("%s/.git", ref_git));
- if (repo) {
- free(ref_git);
- ref_git = xstrdup(repo);
- }
+ struct strbuf err = STRBUF_INIT;
+ int *required = cb_data;
+ char *ref_git = compute_alternate_path(item->string, &err);
- if (!repo && is_directory(mkpath("%s/.git/objects", ref_git))) {
- char *ref_git_git = mkpathdup("%s/.git", ref_git);
- free(ref_git);
- ref_git = ref_git_git;
- } else if (!is_directory(mkpath("%s/objects", ref_git))) {
+ if (!ref_git) {
+ if (*required)
+ die("%s", err.buf);
+ else
+ fprintf(stderr,
+ _("info: Could not add alternate for '%s': %s\n"),
+ item->string, err.buf);
+ } else {
struct strbuf sb = STRBUF_INIT;
- if (get_common_dir(&sb, ref_git))
- die(_("reference repository '%s' as a linked checkout is not supported yet."),
- item->string);
- die(_("reference repository '%s' is not a local repository."),
- item->string);
+ strbuf_addf(&sb, "%s/objects", ref_git);
+ add_to_alternates_file(sb.buf);
+ strbuf_release(&sb);
}
- if (!access(mkpath("%s/shallow", ref_git), F_OK))
- die(_("reference repository '%s' is shallow"), item->string);
-
- if (!access(mkpath("%s/info/grafts", ref_git), F_OK))
- die(_("reference repository '%s' is grafted"), item->string);
-
- strbuf_addf(&alternate, "%s/objects", ref_git);
- add_to_alternates_file(alternate.buf);
- strbuf_release(&alternate);
+ strbuf_release(&err);
free(ref_git);
return 0;
}
static void setup_reference(void)
{
- for_each_string_list(&option_reference, add_one_reference, NULL);
+ int required = 1;
+ for_each_string_list(&option_required_reference,
+ add_one_reference, &required);
+ required = 0;
+ for_each_string_list(&option_optional_reference,
+ add_one_reference, &required);
}
static void copy_alternates(struct strbuf *src, struct strbuf *dst,
@@ -683,7 +679,7 @@ static void update_head(const struct ref *our, const struct ref *remote,
}
}
-static int checkout(void)
+static int checkout(int submodule_progress)
{
unsigned char sha1[20];
char *head;
@@ -747,6 +743,9 @@ static int checkout(void)
if (max_jobs != -1)
argv_array_pushf(&args, "--jobs=%d", max_jobs);
+ if (submodule_progress)
+ argv_array_push(&args, "--progress");
+
err = run_command_v_opt(args.argv, RUN_GIT_CMD);
argv_array_clear(&args);
}
@@ -854,6 +853,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
const char *src_ref_prefix = "refs/heads/";
struct remote *remote;
int err = 0, complete_refs_before_fetch = 1;
+ int submodule_progress;
struct refspec *refspec;
const char *fetch_pattern;
@@ -870,8 +870,10 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
usage_msg_opt(_("You must specify a repository to clone."),
builtin_clone_usage, builtin_clone_options);
+ if (option_depth || option_since || option_not.nr)
+ deepen = 1;
if (option_single_branch == -1)
- option_single_branch = option_depth ? 1 : 0;
+ option_single_branch = deepen ? 1 : 0;
if (option_mirror)
option_bare = 1;
@@ -944,23 +946,40 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
set_git_work_tree(work_tree);
}
- junk_git_dir = git_dir;
+ junk_git_dir = real_git_dir ? real_git_dir : git_dir;
if (safe_create_leading_directories_const(git_dir) < 0)
die(_("could not create leading directories of '%s'"), git_dir);
- set_git_dir_init(git_dir, real_git_dir, 0);
- if (real_git_dir) {
- git_dir = real_git_dir;
- junk_git_dir = real_git_dir;
- }
-
if (0 <= option_verbosity) {
if (option_bare)
fprintf(stderr, _("Cloning into bare repository '%s'...\n"), dir);
else
fprintf(stderr, _("Cloning into '%s'...\n"), dir);
}
- init_db(option_template, INIT_DB_QUIET);
+
+ if (option_recursive) {
+ if (option_required_reference.nr &&
+ option_optional_reference.nr)
+ die(_("clone --recursive is not compatible with "
+ "both --reference and --reference-if-able"));
+ else if (option_required_reference.nr) {
+ string_list_append(&option_config,
+ "submodule.alternateLocation=superproject");
+ string_list_append(&option_config,
+ "submodule.alternateErrorStrategy=die");
+ } else if (option_optional_reference.nr) {
+ string_list_append(&option_config,
+ "submodule.alternateLocation=superproject");
+ string_list_append(&option_config,
+ "submodule.alternateErrorStrategy=info");
+ }
+ }
+
+ init_db(git_dir, real_git_dir, option_template, INIT_DB_QUIET);
+
+ if (real_git_dir)
+ git_dir = real_git_dir;
+
write_config(&option_config);
git_config(git_default_config, NULL);
@@ -980,7 +999,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
git_config_set(key.buf, repo);
strbuf_reset(&key);
- if (option_reference.nr)
+ if (option_required_reference.nr || option_optional_reference.nr)
setup_reference();
fetch_pattern = value.buf;
@@ -998,6 +1017,10 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
if (is_local) {
if (option_depth)
warning(_("--depth is ignored in local clones; use file:// instead."));
+ if (option_since)
+ warning(_("--shallow-since is ignored in local clones; use file:// instead."));
+ if (option_not.nr)
+ warning(_("--shallow-exclude is ignored in local clones; use file:// instead."));
if (!access(mkpath("%s/shallow", path), F_OK)) {
if (option_local > 0)
warning(_("source repository is shallow, ignoring --local"));
@@ -1016,6 +1039,12 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
if (option_depth)
transport_set_option(transport, TRANS_OPT_DEPTH,
option_depth);
+ if (option_since)
+ transport_set_option(transport, TRANS_OPT_DEEPEN_SINCE,
+ option_since);
+ if (option_not.nr)
+ transport_set_option(transport, TRANS_OPT_DEEPEN_NOT,
+ (const char *)&option_not);
if (option_single_branch)
transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, "1");
@@ -1023,7 +1052,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
transport_set_option(transport, TRANS_OPT_UPLOADPACK,
option_upload_pack);
- if (transport->smart_options && !option_depth)
+ if (transport->smart_options && !deepen)
transport->smart_options->check_self_contained_and_connected = 1;
refs = transport_get_remote_refs(transport);
@@ -1093,6 +1122,14 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
update_head(our_head_points_at, remote_head, reflog_msg.buf);
+ /*
+ * We want to show progress for recursive submodule clones iff
+ * we did so for the main clone. But only the transport knows
+ * the final decision for this flag, so we need to rescue the value
+ * before we free the transport.
+ */
+ submodule_progress = transport->progress;
+
transport_unlock_pack(transport);
transport_disconnect(transport);
@@ -1102,7 +1139,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
}
junk_mode = JUNK_LEAVE_REPO;
- err = checkout();
+ err = checkout(submodule_progress);
strbuf_release(&reflog_msg);
strbuf_release(&branch_top);
diff --git a/builtin/commit-tree.c b/builtin/commit-tree.c
index 8a674bc..6050172 100644
--- a/builtin/commit-tree.c
+++ b/builtin/commit-tree.c
@@ -40,8 +40,8 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
{
int i, got_tree = 0;
struct commit_list *parents = NULL;
- unsigned char tree_sha1[20];
- unsigned char commit_sha1[20];
+ struct object_id tree_oid;
+ struct object_id commit_oid;
struct strbuf buffer = STRBUF_INIT;
git_config(commit_tree_config, NULL);
@@ -52,13 +52,13 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "-p")) {
- unsigned char sha1[20];
+ struct object_id oid;
if (argc <= ++i)
usage(commit_tree_usage);
- if (get_sha1_commit(argv[i], sha1))
+ if (get_sha1_commit(argv[i], oid.hash))
die("Not a valid object name %s", argv[i]);
- assert_sha1_type(sha1, OBJ_COMMIT);
- new_parent(lookup_commit(sha1), &parents);
+ assert_sha1_type(oid.hash, OBJ_COMMIT);
+ new_parent(lookup_commit(oid.hash), &parents);
continue;
}
@@ -105,7 +105,7 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
continue;
}
- if (get_sha1_tree(arg, tree_sha1))
+ if (get_sha1_tree(arg, tree_oid.hash))
die("Not a valid object name %s", arg);
if (got_tree)
die("Cannot give more than one trees");
@@ -117,13 +117,13 @@ int cmd_commit_tree(int argc, const char **argv, const char *prefix)
die_errno("git commit-tree: failed to read");
}
- if (commit_tree(buffer.buf, buffer.len, tree_sha1, parents,
- commit_sha1, NULL, sign_commit)) {
+ if (commit_tree(buffer.buf, buffer.len, tree_oid.hash, parents,
+ commit_oid.hash, NULL, sign_commit)) {
strbuf_release(&buffer);
return 1;
}
- printf("%s\n", sha1_to_hex(commit_sha1));
+ printf("%s\n", oid_to_hex(&commit_oid));
strbuf_release(&buffer);
return 0;
}
diff --git a/builtin/commit.c b/builtin/commit.c
index 63a8424..276c740 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -142,14 +142,24 @@ static int show_ignored_in_status, have_option_m;
static const char *only_include_assumed;
static struct strbuf message = STRBUF_INIT;
-static enum status_format {
- STATUS_FORMAT_NONE = 0,
- STATUS_FORMAT_LONG,
- STATUS_FORMAT_SHORT,
- STATUS_FORMAT_PORCELAIN,
+static enum wt_status_format status_format = STATUS_FORMAT_UNSPECIFIED;
- STATUS_FORMAT_UNSPECIFIED
-} status_format = STATUS_FORMAT_UNSPECIFIED;
+static int opt_parse_porcelain(const struct option *opt, const char *arg, int unset)
+{
+ enum wt_status_format *value = (enum wt_status_format *)opt->value;
+ if (unset)
+ *value = STATUS_FORMAT_NONE;
+ else if (!arg)
+ *value = STATUS_FORMAT_PORCELAIN;
+ else if (!strcmp(arg, "v1") || !strcmp(arg, "1"))
+ *value = STATUS_FORMAT_PORCELAIN;
+ else if (!strcmp(arg, "v2") || !strcmp(arg, "2"))
+ *value = STATUS_FORMAT_PORCELAIN_V2;
+ else
+ die("unsupported porcelain version '%s'", arg);
+
+ return 0;
+}
static int opt_parse_m(const struct option *opt, const char *arg, int unset)
{
@@ -173,7 +183,7 @@ static void determine_whence(struct wt_status *s)
whence = FROM_MERGE;
else if (file_exists(git_path_cherry_pick_head())) {
whence = FROM_CHERRY_PICK;
- if (file_exists(git_path(SEQ_DIR)))
+ if (file_exists(git_path_seq_dir()))
sequencer_in_use = 1;
}
else
@@ -500,24 +510,13 @@ static int run_status(FILE *fp, const char *index_file, const char *prefix, int
s->fp = fp;
s->nowarn = nowarn;
s->is_initial = get_sha1(s->reference, sha1) ? 1 : 0;
+ if (!s->is_initial)
+ hashcpy(s->sha1_commit, sha1);
+ s->status_format = status_format;
+ s->ignore_submodule_arg = ignore_submodule_arg;
wt_status_collect(s);
-
- switch (status_format) {
- case STATUS_FORMAT_SHORT:
- wt_shortstatus_print(s);
- break;
- case STATUS_FORMAT_PORCELAIN:
- wt_porcelain_print(s);
- break;
- case STATUS_FORMAT_UNSPECIFIED:
- die("BUG: finalize_deferred_config() should have been called");
- break;
- case STATUS_FORMAT_NONE:
- case STATUS_FORMAT_LONG:
- wt_status_print(s);
- break;
- }
+ wt_status_print(s);
return s->commitable;
}
@@ -895,9 +894,14 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
if (amend)
parent = "HEAD^1";
- if (get_sha1(parent, sha1))
- commitable = !!active_nr;
- else {
+ if (get_sha1(parent, sha1)) {
+ int i, ita_nr = 0;
+
+ for (i = 0; i < active_nr; i++)
+ if (ce_intent_to_add(active_cache[i]))
+ ita_nr++;
+ commitable = active_nr - ita_nr > 0;
+ } else {
/*
* Unless the user did explicitly request a submodule
* ignore mode by passing a command line option we do
@@ -911,7 +915,7 @@ static int prepare_to_commit(const char *index_file, const char *prefix,
if (ignore_submodule_arg &&
!strcmp(ignore_submodule_arg, "all"))
diff_flags |= DIFF_OPT_IGNORE_SUBMODULES;
- commitable = index_differs_from(parent, diff_flags);
+ commitable = index_differs_from(parent, diff_flags, 1);
}
}
strbuf_release(&committer_ident);
@@ -1099,7 +1103,7 @@ static const char *read_commit_message(const char *name)
* is not in effect here.
*/
static struct status_deferred_config {
- enum status_format status_format;
+ enum wt_status_format status_format;
int show_branch;
} status_deferred_config = {
STATUS_FORMAT_UNSPECIFIED,
@@ -1109,6 +1113,7 @@ static struct status_deferred_config {
static void finalize_deferred_config(struct wt_status *s)
{
int use_deferred_config = (status_format != STATUS_FORMAT_PORCELAIN &&
+ status_format != STATUS_FORMAT_PORCELAIN_V2 &&
!s->null_termination);
if (s->null_termination) {
@@ -1201,10 +1206,8 @@ static int parse_and_validate_options(int argc, const char *argv[],
if (also + only + all + interactive > 1)
die(_("Only one of --include/--only/--all/--interactive/--patch can be used."));
- if (argc == 0 && (also || (only && !amend)))
+ if (argc == 0 && (also || (only && !amend && !allow_empty)))
die(_("No paths with --include/--only does not make sense."));
- if (argc == 0 && only && amend)
- only_include_assumed = _("Clever... amending the last one with dirty index.");
if (argc > 0 && !also && !only)
only_include_assumed = _("Explicit paths specified without -i or -o; assuming --only paths...");
if (!cleanup_arg || !strcmp(cleanup_arg, "default"))
@@ -1336,9 +1339,9 @@ int cmd_status(int argc, const char **argv, const char *prefix)
N_("show status concisely"), STATUS_FORMAT_SHORT),
OPT_BOOL('b', "branch", &s.show_branch,
N_("show branch information")),
- OPT_SET_INT(0, "porcelain", &status_format,
- N_("machine-readable output"),
- STATUS_FORMAT_PORCELAIN),
+ { OPTION_CALLBACK, 0, "porcelain", &status_format,
+ N_("version"), N_("machine-readable output"),
+ PARSE_OPT_OPTARG, opt_parse_porcelain },
OPT_SET_INT(0, "long", &status_format,
N_("show status in long format (default)"),
STATUS_FORMAT_LONG),
@@ -1380,7 +1383,13 @@ int cmd_status(int argc, const char **argv, const char *prefix)
fd = hold_locked_index(&index_lock, 0);
s.is_initial = get_sha1(s.reference, sha1) ? 1 : 0;
+ if (!s.is_initial)
+ hashcpy(s.sha1_commit, sha1);
+
s.ignore_submodule_arg = ignore_submodule_arg;
+ s.status_format = status_format;
+ s.verbose = verbose;
+
wt_status_collect(&s);
if (0 <= fd)
@@ -1389,23 +1398,7 @@ int cmd_status(int argc, const char **argv, const char *prefix)
if (s.relative_paths)
s.prefix = prefix;
- switch (status_format) {
- case STATUS_FORMAT_SHORT:
- wt_shortstatus_print(&s);
- break;
- case STATUS_FORMAT_PORCELAIN:
- wt_porcelain_print(&s);
- break;
- case STATUS_FORMAT_UNSPECIFIED:
- die("BUG: finalize_deferred_config() should have been called");
- break;
- case STATUS_FORMAT_NONE:
- case STATUS_FORMAT_LONG:
- s.verbose = verbose;
- s.ignore_submodule_arg = ignore_submodule_arg;
- wt_status_print(&s);
- break;
- }
+ wt_status_print(&s);
return 0;
}
diff --git a/builtin/config.c b/builtin/config.c
index 6cbf733..05843a0 100644
--- a/builtin/config.c
+++ b/builtin/config.c
@@ -622,8 +622,8 @@ int cmd_config(int argc, const char **argv, const char *prefix)
value = normalize_value(argv[0], argv[1]);
ret = git_config_set_in_file_gently(given_config_source.file, argv[0], value);
if (ret == CONFIG_NOTHING_SET)
- error("cannot overwrite multiple values with a single value\n"
- " Use a regexp, --add or --replace-all to change %s.", argv[0]);
+ error(_("cannot overwrite multiple values with a single value\n"
+ " Use a regexp, --add or --replace-all to change %s."), argv[0]);
return ret;
}
else if (actions == ACTION_SET_ALL) {
diff --git a/builtin/count-objects.c b/builtin/count-objects.c
index ba92919..a04b4f2 100644
--- a/builtin/count-objects.c
+++ b/builtin/count-objects.c
@@ -8,6 +8,7 @@
#include "dir.h"
#include "builtin.h"
#include "parse-options.h"
+#include "quote.h"
static unsigned long garbage;
static off_t size_garbage;
@@ -73,6 +74,14 @@ static int count_cruft(const char *basename, const char *path, void *data)
return 0;
}
+static int print_alternate(struct alternate_object_database *alt, void *data)
+{
+ printf("alternate: ");
+ quote_c_style(alt->path, NULL, stdout, 0);
+ putchar('\n');
+ return 0;
+}
+
static char const * const count_objects_usage[] = {
N_("git count-objects [-v] [-H | --human-readable]"),
NULL
@@ -88,6 +97,8 @@ int cmd_count_objects(int argc, const char **argv, const char *prefix)
OPT_END(),
};
+ git_config(git_default_config, NULL);
+
argc = parse_options(argc, argv, prefix, opts, count_objects_usage, 0);
/* we do not take arguments other than flags for now */
if (argc)
@@ -140,6 +151,7 @@ int cmd_count_objects(int argc, const char **argv, const char *prefix)
printf("prune-packable: %lu\n", packed_loose);
printf("garbage: %lu\n", garbage);
printf("size-garbage: %s\n", garbage_buf.buf);
+ foreach_alt_odb(print_alternate, NULL);
strbuf_release(&loose_buf);
strbuf_release(&pack_buf);
strbuf_release(&garbage_buf);
diff --git a/builtin/describe.c b/builtin/describe.c
index 8a25abe..01490a1 100644
--- a/builtin/describe.c
+++ b/builtin/describe.c
@@ -352,7 +352,7 @@ static void describe(const char *arg, int last_one)
oid_to_hex(oid));
}
- qsort(all_matches, match_cnt, sizeof(all_matches[0]), compare_pt);
+ QSORT(all_matches, match_cnt, compare_pt);
if (gave_up_on) {
commit_list_insert_by_date(gave_up_on, &list);
diff --git a/builtin/diff.c b/builtin/diff.c
index b7a9405..7f91f6d 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -301,20 +301,21 @@ int cmd_diff(int argc, const char **argv, const char *prefix)
break;
}
- if (!no_index)
- prefix = setup_git_directory_gently(&nongit);
+ prefix = setup_git_directory_gently(&nongit);
- /*
- * Treat git diff with at least one path outside of the
- * repo the same as if the command would have been executed
- * outside of a git repository. In this case it behaves
- * the same way as "git diff --no-index <a> <b>", which acts
- * as a colourful "diff" replacement.
- */
- if (nongit || ((argc == i + 2) &&
- (!path_inside_repo(prefix, argv[i]) ||
- !path_inside_repo(prefix, argv[i + 1]))))
- no_index = DIFF_NO_INDEX_IMPLICIT;
+ if (!no_index) {
+ /*
+ * Treat git diff with at least one path outside of the
+ * repo the same as if the command would have been executed
+ * outside of a git repository. In this case it behaves
+ * the same way as "git diff --no-index <a> <b>", which acts
+ * as a colourful "diff" replacement.
+ */
+ if (nongit || ((argc == i + 2) &&
+ (!path_inside_repo(prefix, argv[i]) ||
+ !path_inside_repo(prefix, argv[i + 1]))))
+ no_index = DIFF_NO_INDEX_IMPLICIT;
+ }
if (!no_index)
gitmodules_config();
diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index c0652a7..1e815b5 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -347,7 +347,7 @@ static void show_filemodify(struct diff_queue_struct *q,
* Handle files below a directory first, in case they are all deleted
* and the directory changes to a file or symlink.
*/
- qsort(q->queue, q->nr, sizeof(q->queue[0]), depth_first);
+ QSORT(q->queue, q->nr, depth_first);
for (i = 0; i < q->nr; i++) {
struct diff_filespec *ospec = q->queue[i]->one;
diff --git a/builtin/fetch-pack.c b/builtin/fetch-pack.c
index bfd0be4..cfe9e44 100644
--- a/builtin/fetch-pack.c
+++ b/builtin/fetch-pack.c
@@ -51,6 +51,7 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
struct child_process *conn;
struct fetch_pack_args args;
struct sha1_array shallow = SHA1_ARRAY_INIT;
+ struct string_list deepen_not = STRING_LIST_INIT_DUP;
packet_trace_identity("fetch-pack");
@@ -60,12 +61,12 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
for (i = 1; i < argc && *argv[i] == '-'; i++) {
const char *arg = argv[i];
- if (starts_with(arg, "--upload-pack=")) {
- args.uploadpack = arg + 14;
+ if (skip_prefix(arg, "--upload-pack=", &arg)) {
+ args.uploadpack = arg;
continue;
}
- if (starts_with(arg, "--exec=")) {
- args.uploadpack = arg + 7;
+ if (skip_prefix(arg, "--exec=", &arg)) {
+ args.uploadpack = arg;
continue;
}
if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) {
@@ -101,8 +102,20 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
args.verbose = 1;
continue;
}
- if (starts_with(arg, "--depth=")) {
- args.depth = strtol(arg + 8, NULL, 0);
+ if (skip_prefix(arg, "--depth=", &arg)) {
+ args.depth = strtol(arg, NULL, 0);
+ continue;
+ }
+ if (skip_prefix(arg, "--shallow-since=", &arg)) {
+ args.deepen_since = xstrdup(arg);
+ continue;
+ }
+ if (skip_prefix(arg, "--shallow-exclude=", &arg)) {
+ string_list_append(&deepen_not, arg);
+ continue;
+ }
+ if (!strcmp(arg, "--deepen-relative")) {
+ args.deepen_relative = 1;
continue;
}
if (!strcmp("--no-progress", arg)) {
@@ -132,6 +145,8 @@ int cmd_fetch_pack(int argc, const char **argv, const char *prefix)
}
usage(fetch_pack_usage);
}
+ if (deepen_not.nr)
+ args.deepen_not = &deepen_not;
if (i < argc)
dest = argv[i++];
diff --git a/builtin/fetch.c b/builtin/fetch.c
index cd7e3ce..1d77e58 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -35,13 +35,15 @@ static int fetch_prune_config = -1; /* unspecified */
static int prune = -1; /* unspecified */
#define PRUNE_BY_DEFAULT 0 /* do we prune by default? */
-static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity;
+static int all, append, dry_run, force, keep, multiple, update_head_ok, verbosity, deepen_relative;
static int progress = -1, recurse_submodules = RECURSE_SUBMODULES_DEFAULT;
-static int tags = TAGS_DEFAULT, unshallow, update_shallow;
+static int tags = TAGS_DEFAULT, unshallow, update_shallow, deepen;
static int max_children = -1;
static enum transport_family family;
static const char *depth;
+static const char *deepen_since;
static const char *upload_pack;
+static struct string_list deepen_not = STRING_LIST_INIT_NODUP;
static struct strbuf default_rla = STRBUF_INIT;
static struct transport *gtransport;
static struct transport *gsecondary;
@@ -117,6 +119,12 @@ static struct option builtin_fetch_options[] = {
OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
OPT_STRING(0, "depth", &depth, N_("depth"),
N_("deepen history of shallow clone")),
+ OPT_STRING(0, "shallow-since", &deepen_since, N_("time"),
+ N_("deepen history of shallow repository based on time")),
+ OPT_STRING_LIST(0, "shallow-exclude", &deepen_not, N_("revision"),
+ N_("deepen history of shallow clone by excluding rev")),
+ OPT_INTEGER(0, "deepen", &deepen_relative,
+ N_("deepen history of shallow clone")),
{ OPTION_SET_INT, 0, "unshallow", &unshallow, NULL,
N_("convert to a complete repository"),
PARSE_OPT_NONEG | PARSE_OPT_NOARG, NULL, 1 },
@@ -351,9 +359,6 @@ static struct ref *get_ref_map(struct transport *transport,
for (i = 0; i < fetch_refspec_nr; i++)
get_fetch_map(ref_map, &fetch_refspec[i], &oref_tail, 1);
-
- if (tags == TAGS_SET)
- get_fetch_map(remote_refs, tag_refspec, &tail, 0);
} else if (refmap_array) {
die("--refmap option is only meaningful with command-line refspec(s).");
} else {
@@ -569,9 +574,12 @@ static void print_compact(struct strbuf *display,
static void format_display(struct strbuf *display, char code,
const char *summary, const char *error,
- const char *remote, const char *local)
+ const char *remote, const char *local,
+ int summary_width)
{
- strbuf_addf(display, "%c %-*s ", code, TRANSPORT_SUMMARY(summary));
+ int width = (summary_width + strlen(summary) - gettext_width(summary));
+
+ strbuf_addf(display, "%c %-*s ", code, width, summary);
if (!compact_format)
print_remote_to_local(display, remote, local);
else
@@ -583,7 +591,8 @@ static void format_display(struct strbuf *display, char code,
static int update_local_ref(struct ref *ref,
const char *remote,
const struct ref *remote_ref,
- struct strbuf *display)
+ struct strbuf *display,
+ int summary_width)
{
struct commit *current = NULL, *updated;
enum object_type type;
@@ -597,7 +606,7 @@ static int update_local_ref(struct ref *ref,
if (!oidcmp(&ref->old_oid, &ref->new_oid)) {
if (verbosity > 0)
format_display(display, '=', _("[up to date]"), NULL,
- remote, pretty_ref);
+ remote, pretty_ref, summary_width);
return 0;
}
@@ -611,7 +620,7 @@ static int update_local_ref(struct ref *ref,
*/
format_display(display, '!', _("[rejected]"),
_("can't fetch in current branch"),
- remote, pretty_ref);
+ remote, pretty_ref, summary_width);
return 1;
}
@@ -621,7 +630,7 @@ static int update_local_ref(struct ref *ref,
r = s_update_ref("updating tag", ref, 0);
format_display(display, r ? '!' : 't', _("[tag update]"),
r ? _("unable to update local ref") : NULL,
- remote, pretty_ref);
+ remote, pretty_ref, summary_width);
return r;
}
@@ -654,7 +663,7 @@ static int update_local_ref(struct ref *ref,
r = s_update_ref(msg, ref, 0);
format_display(display, r ? '!' : '*', what,
r ? _("unable to update local ref") : NULL,
- remote, pretty_ref);
+ remote, pretty_ref, summary_width);
return r;
}
@@ -670,7 +679,7 @@ static int update_local_ref(struct ref *ref,
r = s_update_ref("fast-forward", ref, 1);
format_display(display, r ? '!' : ' ', quickref.buf,
r ? _("unable to update local ref") : NULL,
- remote, pretty_ref);
+ remote, pretty_ref, summary_width);
strbuf_release(&quickref);
return r;
} else if (force || ref->force) {
@@ -685,12 +694,12 @@ static int update_local_ref(struct ref *ref,
r = s_update_ref("forced-update", ref, 1);
format_display(display, r ? '!' : '+', quickref.buf,
r ? _("unable to update local ref") : _("forced update"),
- remote, pretty_ref);
+ remote, pretty_ref, summary_width);
strbuf_release(&quickref);
return r;
} else {
format_display(display, '!', _("[rejected]"), _("non-fast-forward"),
- remote, pretty_ref);
+ remote, pretty_ref, summary_width);
return 1;
}
}
@@ -721,6 +730,7 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
char *url;
const char *filename = dry_run ? "/dev/null" : git_path_fetch_head();
int want_status;
+ int summary_width = transport_summary_width(ref_map);
fp = fopen(filename, "a");
if (!fp)
@@ -830,13 +840,14 @@ static int store_updated_refs(const char *raw_url, const char *remote_name,
strbuf_reset(&note);
if (ref) {
- rc |= update_local_ref(ref, what, rm, &note);
+ rc |= update_local_ref(ref, what, rm, &note,
+ summary_width);
free(ref);
} else
format_display(&note, '*',
*kind ? kind : "branch", NULL,
*what ? what : "HEAD",
- "FETCH_HEAD");
+ "FETCH_HEAD", summary_width);
if (note.len) {
if (verbosity >= 0 && !shown_url) {
fprintf(stderr, _("From %.*s\n"),
@@ -878,7 +889,7 @@ static int quickfetch(struct ref *ref_map)
* really need to perform. Claiming failure now will ensure
* we perform the network exchange to deepen our history.
*/
- if (depth)
+ if (deepen)
return -1;
opt.quiet = 1;
return check_connected(iterate_ref_map, &rm, &opt);
@@ -903,6 +914,7 @@ static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map,
int url_len, i, result = 0;
struct ref *ref, *stale_refs = get_stale_heads(refs, ref_count, ref_map);
char *url;
+ int summary_width = transport_summary_width(stale_refs);
const char *dangling_msg = dry_run
? _(" (%s will become dangling)")
: _(" (%s has become dangling)");
@@ -938,7 +950,8 @@ static int prune_refs(struct refspec *refs, int ref_count, struct ref *ref_map,
shown_url = 1;
}
format_display(&sb, '-', _("[deleted]"), NULL,
- _("(none)"), prettify_refname(ref->name));
+ _("(none)"), prettify_refname(ref->name),
+ summary_width);
fprintf(stderr, " %s\n",sb.buf);
strbuf_release(&sb);
warn_dangling_symref(stderr, dangling_msg, ref->name);
@@ -986,7 +999,7 @@ static void set_option(struct transport *transport, const char *name, const char
name, transport->url);
}
-static struct transport *prepare_transport(struct remote *remote)
+static struct transport *prepare_transport(struct remote *remote, int deepen)
{
struct transport *transport;
transport = transport_get(remote, NULL);
@@ -998,6 +1011,13 @@ static struct transport *prepare_transport(struct remote *remote)
set_option(transport, TRANS_OPT_KEEP, "yes");
if (depth)
set_option(transport, TRANS_OPT_DEPTH, depth);
+ if (deepen && deepen_since)
+ set_option(transport, TRANS_OPT_DEEPEN_SINCE, deepen_since);
+ if (deepen && deepen_not.nr)
+ set_option(transport, TRANS_OPT_DEEPEN_NOT,
+ (const char *)&deepen_not);
+ if (deepen_relative)
+ set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, "yes");
if (update_shallow)
set_option(transport, TRANS_OPT_UPDATE_SHALLOW, "yes");
return transport;
@@ -1005,13 +1025,25 @@ static struct transport *prepare_transport(struct remote *remote)
static void backfill_tags(struct transport *transport, struct ref *ref_map)
{
- if (transport->cannot_reuse) {
- gsecondary = prepare_transport(transport->remote);
+ int cannot_reuse;
+
+ /*
+ * Once we have set TRANS_OPT_DEEPEN_SINCE, we can't unset it
+ * when remote helper is used (setting it to an empty string
+ * is not unsetting). We could extend the remote helper
+ * protocol for that, but for now, just force a new connection
+ * without deepen-since. Similar story for deepen-not.
+ */
+ cannot_reuse = transport->cannot_reuse ||
+ deepen_since || deepen_not.nr;
+ if (cannot_reuse) {
+ gsecondary = prepare_transport(transport->remote, 0);
transport = gsecondary;
}
transport_set_option(transport, TRANS_OPT_FOLLOWTAGS, NULL);
transport_set_option(transport, TRANS_OPT_DEPTH, "0");
+ transport_set_option(transport, TRANS_OPT_DEEPEN_RELATIVE, NULL);
fetch_refs(transport, ref_map);
if (gsecondary) {
@@ -1222,7 +1254,7 @@ static int fetch_one(struct remote *remote, int argc, const char **argv)
die(_("No remote repository specified. Please, specify either a URL or a\n"
"remote name from which new revisions should be fetched."));
- gtransport = prepare_transport(remote);
+ gtransport = prepare_transport(remote, 1);
if (prune < 0) {
/* no command line request */
@@ -1282,6 +1314,13 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
argc = parse_options(argc, argv, prefix,
builtin_fetch_options, builtin_fetch_usage, 0);
+ if (deepen_relative) {
+ if (deepen_relative < 0)
+ die(_("Negative depth in --deepen is not supported"));
+ if (depth)
+ die(_("--deepen and --depth are mutually exclusive"));
+ depth = xstrfmt("%d", deepen_relative);
+ }
if (unshallow) {
if (depth)
die(_("--depth and --unshallow cannot be used together"));
@@ -1294,6 +1333,8 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)
/* no need to be strict, transport_set_option() will validate it again */
if (depth && atoi(depth) < 1)
die(_("depth %s is not a positive number"), depth);
+ if (depth || deepen_since || deepen_not.nr)
+ deepen = 1;
if (recurse_submodules != RECURSE_SUBMODULES_OFF) {
if (recurse_submodules_default) {
diff --git a/builtin/fmt-merge-msg.c b/builtin/fmt-merge-msg.c
index dc2e9e4..efab62f 100644
--- a/builtin/fmt-merge-msg.c
+++ b/builtin/fmt-merge-msg.c
@@ -314,14 +314,10 @@ static void add_people_info(struct strbuf *out,
struct string_list *authors,
struct string_list *committers)
{
- if (authors->nr)
- qsort(authors->items,
- authors->nr, sizeof(authors->items[0]),
- cmp_string_list_util_as_integral);
- if (committers->nr)
- qsort(committers->items,
- committers->nr, sizeof(committers->items[0]),
- cmp_string_list_util_as_integral);<