diff options
Diffstat (limited to 'Documentation/RelNotes/2.9.0.txt')
| -rw-r--r-- | Documentation/RelNotes/2.9.0.txt | 309 |
1 files changed, 272 insertions, 37 deletions
diff --git a/Documentation/RelNotes/2.9.0.txt b/Documentation/RelNotes/2.9.0.txt index 46bee4a..211b972 100644 --- a/Documentation/RelNotes/2.9.0.txt +++ b/Documentation/RelNotes/2.9.0.txt @@ -16,12 +16,20 @@ The output formats of "git log" that indents the commit log message by 4 spaces now expands HT in the log message by default. You can use the "--no-expand-tabs" option to disable this. +"git commit-tree" plumbing command required the user to always sign +its result when the user sets the commit.gpgsign configuration +variable, which was an ancient mistake, which this release corrects. +A script that drives commit-tree, if it relies on this mistake, now +needs to read commit.gpgsign and pass the -S option as necessary. + Updates since v2.8 ------------------ UI, Workflows & Features + * Comes with git-multimail 1.3.1 (in contrib/). + * The end-user facing Porcelain level commands like "diff" and "log" now enables the rename detection by default. @@ -56,6 +64,9 @@ UI, Workflows & Features to be used in a rare event that merges histories of two projects that started their lives independently. + * "git pull" has been taught to pass --allow-unrelated-histories + option to underlying "git merge". + * "git apply -v" learned to report paths in the patch that were skipped via --include/--exclude mechanism or being outside the current working directory. @@ -80,13 +91,53 @@ UI, Workflows & Features such a case, and allows the users to override it with a new option, "--no-expand-tabs". + * "git send-email" now uses a more readable timestamps when + formulating a message ID. + + * "git rerere" can encounter two or more files with the same conflict + signature that have to be resolved in different ways, but there was + no way to record these separate resolutions. + (merge 890fca8 jc/rerere-multi later to maint). + + * "git p4" learned to record P4 jobs in Git commit that imports from + the history in Perforce. + + * "git describe --contains" often made a hard-to-justify choice of + tag to give name to a given commit, because it tried to come up + with a name with smallest number of hops from a tag, causing an old + commit whose close descendant that is recently tagged were not + described with respect to an old tag but with a newer tag. It did + not help that its computation of "hop" count was further tweaked to + penalize being on a side branch of a merge. The logic has been + updated to favor using the tag with the oldest tagger date, which + is a lot easier to explain to the end users: "We describe a commit + in terms of the (chronologically) oldest tag that contains the + commit." + (merge 7550424 js/name-rev-use-oldest-ref later to maint). + + * "git clone" learned "--shallow-submodules" option. + + * HTTP transport clients learned to throw extra HTTP headers at the + server, specified via http.extraHeader configuration variable. + + * Patch output from "git diff" and friends has been tweaked to be + more readable by using a blank line as a strong hint that the + contents before and after it belong to a logically separate unit. + + * A new configuration variable core.hooksPath allows customizing + where the hook directory is. + + * An earlier addition of "sanitize_submodule_env" with 14111fc4 (git: + submodule honor -c credential.* from command line, 2016-02-29) + turned out to be a convoluted no-op; implement what it wanted to do + correctly, and stop filtering settings given via "git -c var=val". + Performance, Internal Implementation, Development Support etc. * The embedded args argv-array in the child process is used to build the command line to run pack-objects instead of using a separate array of strings. - (merge 65a3629 mp/upload-pack-use-embedded-args later to maint). * A test for tags has been restructured so that more parts of it can easily be run on a platform without a working GnuPG. @@ -95,7 +146,6 @@ Performance, Internal Implementation, Development Support etc. repository (among other things), are now uniformly available to Git subcommand implementations, and Git avoids attempting to touch references when we are not in a repository. - (merge 11e6b3f jk/startup-info later to maint). * The command line argument parser for "receive-pack" has been rewritten to use parse-options. @@ -105,20 +155,55 @@ Performance, Internal Implementation, Development Support etc. parallel. * Rename bunch of tests on "git clone" for better organization. - (merge 8fbb03a sb/clone-t57-t56 later to maint). * The tests that involve running httpd leaked the system-wide configuration in /etc/gitconfig to the tested environment. - (merge 1fad503 jk/test-httpd-config-nosystem later to maint). * Build updates for MSVC. - (merge 0ef60af ss/msvc later to maint). * The repository set-up sequence has been streamlined (the biggest change is that there is no longer git_config_early()), so that we do not attempt to look into refs/* when we know we do not have a Git repository. - (merge 274db84 jk/check-repository-format later to maint). + + * Code restructuring around the "refs" area to prepare for pluggable + refs backends. + + * Sources to many test helper binaries (and the generated helpers) + have been moved to t/helper/ subdirectory to reduce clutter at the + top level of the tree. + + * Unify internal logic between "git tag -v" and "git verify-tag" + commands by making one directly call into the other. + (merge bef234b st/verify-tag later to maint). + + * "merge-recursive" strategy incorrectly checked if a path that is + involved in its internal merge exists in the working tree. + + * The test scripts for "git p4" (but not "git p4" implementation + itself) has been updated so that they would work even on a system + where the installed version of Python is python 3. + (merge 1fb3fb4 ld/p4-test-py3 later to maint). + + * As nobody maintains our in-tree git.spec.in and distros use their + own spec file, we stopped pretending that we support "make rpm". + + * Move from unsigned char[20] to struct object_id continues. + + * Update of "git submodule" to move pieces of logic to C continues. + + * The code for warning_errno/die_errno has been refactored and a new + error_errno() reporting helper is introduced. + (merge 1da045f nd/error-errno later to maint). + + * Running tests with '-x' option to trace the individual command + executions is a useful way to debug test scripts, but some tests + that capture the standard error stream and check what the command + said can be broken with the trace output mixed in. When running + our tests under "bash", however, we can redirect the trace output + to another file descriptor to keep the standard error of programs + being tested intact. + (merge d88785e jk/test-send-sh-x-trace-elsewhere later to maint). Also contains various documentation updates and code clean-ups. @@ -134,99 +219,249 @@ notes for details). * "git config --get-urlmatch", unlike other variants of the "git config --get" family, did not signal error with its exit status when there was no matching configuration. - (merge 24990b2 jk/config-get-urlmatch later to maint). * The "--local-env-vars" and "--resolve-git-dir" options of "git rev-parse" failed to work outside a repository when the command's option parsing was rewritten in 1.8.5 era. - (merge fc7d47f jk/rev-parse-local-env-vars later to maint). * "git index-pack --keep[=<msg>] pack-$name.pack" simply did not work. - (merge 0e94242 jc/maint-index-pack-keep later to maint). * Fetching of history by naming a commit object name directly didn't work across remote-curl transport. - (merge 754ecb1 gf/fetch-pack-direct-object-fetch later to maint). * A small memory leak in an error codepath has been plugged in xdiff code. - (merge 87f1625 rj/xdiff-prepare-plug-leak-on-error-codepath later to maint). * strbuf_getwholeline() did not NUL-terminate the buffer on certain corner cases in its error codepath. - (merge b709043 jk/getwholeline-getdelim-empty later to maint). * "git mergetool" did not work well with conflicts that both sides deleted. - (merge a298604 da/mergetool-delete-delete-conflict later to maint). * "git send-email" had trouble parsing alias file in mailrc format when lines in it had trailing whitespaces on them. - (merge a277d1e jk/send-email-rtrim-mailrc-alias later to maint). * When "git merge --squash" stopped due to conflict, the concluding "git commit" failed to read in the SQUASH_MSG that shows the log messages from all the squashed commits. - (merge b64c1e0 ss/commit-squash-msg later to maint). * "git merge FETCH_HEAD" dereferenced NULL pointer when merging nothing into an unborn history (which is arguably unusual usage, which perhaps was the reason why nobody noticed it). - (merge b84e65d jv/merge-nothing-into-void later to maint). * When "git worktree" feature is in use, "git branch -d" allowed deletion of a branch that is checked out in another worktree, which was wrong. - (merge f292244 ky/branch-d-worktree later to maint). * When "git worktree" feature is in use, "git branch -m" renamed a branch that is checked out in another worktree without adjusting the HEAD symbolic ref for the worktree. - (merge 18eb3a9 ky/branch-m-worktree later to maint). * "git diff -M" used to work better when two originally identical files A and B got renamed to X/A and X/B by pairing A to X/A and B to X/B, but this was broken in the 2.0 timeframe. - (merge ca4e3ca sg/diff-multiple-identical-renames later to maint). * "git send-pack --all <there>" was broken when its command line option parsing was written in the 2.6 timeframe. - (merge c677756 sk/send-pack-all-fix later to maint). * "git format-patch --help" showed `-s` and `--no-patch` as if these are valid options to the command. We already hide `--patch` option from the documentation, because format-patch is about showing the diff, and the documentation now hides these options as well. - (merge b73a1bc es/format-patch-doc-hide-no-patch later to maint). * When running "git blame $path" with unnormalized data in the index for the path, the data in the working tree was blamed, even though "git add" would not have changed what is already in the index, due to "safe crlf" that disables the line-end conversion. It has been corrected. - (merge a08feb8 tb/blame-force-read-cache-to-workaround-safe-crlf later to maint). * A change back in version 2.7 to "git branch" broke display of a symbolic ref in a non-standard place in the refs/ hierarchy (we expect symbolic refs to appear in refs/remotes/*/HEAD to point at the primary branch the remote has, and as .git/HEAD to point at the branch we locally checked out). - (merge 95c38fb jk/branch-shortening-funny-symrefs later to maint). + + * A partial rewrite of "git submodule" in the 2.7 timeframe changed + the way the gitdir: pointer in the submodules point at the real + repository location to use absolute paths by accident. This has + been corrected. + + * "git commit" misbehaved in a few minor ways when an empty message + is given via -m '', all of which has been corrected. + + * Support for CRAM-MD5 authentication method in "git imap-send" did + not work well. + + * Upcoming OpenSSL 1.1.0 will break compilation b updating a few APIs + we use in imap-send, which has been adjusted for the change. + (merge 1245c74 ky/imap-send-openssl-1.1.0 later to maint). + + * The socks5:// proxy support added back in 2.6.4 days was not aware + that socks5h:// proxies behave differently. + + * "git config" had a codepath that tried to pass a NULL to + printf("%s"), which nobody seems to have noticed. + + * On Cygwin, object creation uses the "create a temporary and then + rename it to the final name" pattern, not "create a temporary, + hardlink it to the final name and then unlink the temporary" + pattern. + + This is necessary to use Git on Windows shared directories, and is + already enabled for the MinGW and plain Windows builds. It also + has been used in Cygwin packaged versions of Git for quite a while. + See http://thread.gmane.org/gmane.comp.version-control.git/291853 + + * "merge-octopus" strategy did not ensure that the index is clean + when merge begins. + + * When "git merge" notices that the merge can be resolved purely at + the tree level (without having to merge blobs) and the resulting + tree happens to already exist in the object store, it forgot to + update the index, which lead to an inconsistent state for later + operations. + + * "git submodule" reports the paths of submodules the command + recurses into, but this was incorrect when the command was not run + from the root level of the superproject. + (merge 2ab5660 sb/submodule-path-misc-bugs later to maint). + + * The "user.useConfigOnly" configuration variable makes it an error + if users do not explicitly set user.name and user.email. However, + its check was not done early enough and allowed another error to + trigger, reporting that the default value we guessed from the + system setting was unusable. This was a suboptimal end-user + experience as we want the users to set user.name/user.email without + relying on the auto-detection at all. + (merge d3c06c1 da/user-useconfigonly later to maint). + + * "git mv old new" did not adjust the path for a submodule that lives + as a subdirectory inside old/ directory correctly. + (merge a127331 sb/mv-submodule-fix later to maint). + + * "git replace -e" did not honour "core.editor" configuration. + (merge 36b1437 js/replace-edit-use-editor-configuration later to maint). + + * "git push" from a corrupt repository that attempts to push a large + number of refs deadlocked; the thread to relay rejection notices + for these ref updates blocked on writing them to the main thread, + after the main thread at the receiving end notices that the push + failed and decides not to read these notices and return a failure. + (merge f924b52a jk/push-client-deadlock-fix later to maint). + + * mmap emulation on Windows has been optimized and work better without + consuming paging store when not needed. + (merge d5425d1 js/win32-mmap later to maint). + + * A question by "git send-email" to ask the identity of the sender + has been updated. + (merge 0d6b21e jd/send-email-to-whom later to maint). + + * UI consistency improvements for "git mergetool". + (merge cce076e nf/mergetool-prompt later to maint). + + * "git rebase -m" could be asked to rebase an entire branch starting + from the root, but failed by assuming that there always is a parent + commit to the first commit on the branch. + (merge 79f4344 bw/rebase-merge-entire-branch later to maint). + + * Fix a broken "p4 lfs" test. + (merge 9e220fe ls/p4-lfs-test-fix-2.7.0 later to maint). + + * Recent update to Git LFS broke "git p4" by changing the output from + its "lfs pointer" subcommand. + (merge 82f2567 ls/p4-lfs later to maint). + + * "git fetch" test t5510 was flaky while running a (forced) automagic + garbage collection. + (merge bb05510 js/close-packs-before-gc later to maint). + + * Documentation updates to help contributors setting up Travis CI + test for their patches. + (merge 0e5d028 ls/travis-submitting-patches later to maint). + + * Some multi-byte encoding can have a backslash byte as a later part + of one letter, which would confuse "highlight" filter used in + gitweb. + (merge 029f372 sk/gitweb-highlight-encoding later to maint). + + * "git commit-tree" plumbing command required the user to always sign + its result when the user sets the commit.gpgsign configuration + variable, which was an ancient mistake. Rework "git rebase" that + relied on this mistake so that it reads commit.gpgsign and pass (or + not pass) the -S option to "git commit-tree" to keep the end-user + expectation the same, while teaching "git commit-tree" to ignore + the configuration variable. This will stop requiring the users to + sign commit objects used internally as an implementation detail of + "git stash". + (merge 6694856 jc/commit-tree-ignore-commit-gpgsign later to maint). + + * "http.cookieFile" configuration variable clearly wants a pathname, + but we forgot to treat it as such by e.g. applying tilde expansion. + (merge e5a39ad bn/http-cookiefile-config later to maint). + + * Consolidate description of tilde-expansion that is done to + configuration variables that take pathname to a single place. + (merge dca83ab jc/config-pathname-type later to maint). + + * Correct faulty recommendation to use "git submodule deinit ." when + de-initialising all submodules, which would result in a strange + error message in a pathological corner case. + (merge f6a5279 sb/submodule-deinit-all later to maint). + + * Many 'linkgit:<git documentation page>' references were broken, + which are all fixed with this. + (merge 1cca17d jc/linkgit-fix later to maint). + + * "git rerere" can get confused by conflict markers deliberately left + by the inner merge step, because they are indistinguishable from + the real conflict markers left by the outermost merge which are + what the end user and "rerere" need to look at. This was fixed by + making the conflict markers left by the inner merges a bit longer. + (merge 0f9fd5c jc/ll-merge-internal later to maint). + + * CI test was taught to build documentation pages. + (merge b98712b ls/travis-build-doc later to maint). + + * "git fsck" learned to catch NUL byte in a commit object as + potential error and warn. + (merge 6d2d780 jc/fsck-nul-in-commit later to maint). + + * Portability enhancement for "rebase -i" to help platforms whose + shell does not like "for i in <empty>" (which is not POSIX-kosher). + (merge 8e98b35 jk/rebase-interative-eval-fix later to maint). + + * On Windows, .git and optionally any files whose name starts with a + dot are now marked as hidden, with a core.hideDotFiles knob to + customize this behaviour. + (merge ebf31e7 js/windows-dotgit later to maint). + + * Documentation for "git merge --verify-signatures" has been updated + to clarify that the signature of only the commit at the tip is + verified. Also the phrasing used for signature and key validity is + adjusted to align with that used by OpenPGP. + (merge 05a5869 kf/gpg-sig-verification-doc later to maint). * Other minor clean-ups and documentation updates - (merge aed7480 mm/lockfile-error-message later to maint). - (merge bfee614 jc/index-pack later to maint). - (merge f870899 ss/exc-flag-is-a-collection-of-bits later to maint). - (merge dde7891 pb/t7502-drop-dup later to maint). - (merge 3bd1b51 cc/doc-recommend-performance-trace-to-file later to maint). - (merge 7d5e9c9 jk/credential-cache-comment-exit later to maint). - (merge 16a86d4 nd/apply-doc later to maint). - (merge c3f6b85 pb/opt-cmdmode-doc later to maint). - (merge 30211fb oa/doc-diff-check later to maint). - (merge 01d98e8 ak/use-hashmap-iter-first-in-submodule-config later to maint). (merge 8b5a3e9 kn/for-each-tag-branch later to maint). - (merge 9c60d9f sb/misc-cleanups later to maint). + (merge 99dab16 sb/misc-cleanups later to maint). (merge 7a6a44c cc/apply later to maint). - (merge 8e9b208 js/mingw-tests-2.8 later to maint). - (merge d55de70 jc/makefile-redirection-stderr later to maint). - (merge 4232b21 ep/trace-doc-sample-fix later to maint). + (merge 6594883 nd/remove-unused later to maint). + (merge 0ff7410 sg/test-lib-simplify-expr-away later to maint). + (merge 060e776 jk/fix-attribute-macro-in-2.5 later to maint). + (merge d16df0c rt/string-list-lookup-cleanup later to maint). + (merge 376eb60 sb/config-exit-status-list later to maint). + (merge 9cea46c ew/doc-split-pack-disables-bitmap later to maint). + (merge fa72245 ew/normal-to-e later to maint). + (merge 2e39a24 rn/glossary-typofix later to maint). + (merge cadfbef sb/clean-test-fix later to maint). + (merge 832c0e5 lp/typofixes later to maint). + (merge f5ee54a sb/z-is-gnutar-ism later to maint). + (merge 2e3926b va/i18n-misc-updates later to maint). + (merge f212dcc bn/config-doc-tt-varnames later to maint). + (merge f54bea4 nd/remote-plural-ours-plus-theirs later to maint). + (merge 2bb0518 ak/t4151-ls-files-could-be-empty later to maint). + (merge 4df4313 jc/test-seq later to maint). + (merge a75a308 tb/t5601-sed-fix later to maint). + (merge 6c1fbe1 va/i18n-remote-comment-to-align later to maint). + (merge dee2303 va/mailinfo-doc-typofix later to maint). |