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diff --git a/third_party/git/Documentation/RelNotes/2.12.0.txt b/third_party/git/Documentation/RelNotes/2.12.0.txt deleted file mode 100644 index ef8b97da9b..0000000000 --- a/third_party/git/Documentation/RelNotes/2.12.0.txt +++ /dev/null @@ -1,500 +0,0 @@ -Git 2.12 Release Notes -====================== - -Backward compatibility notes. - - * Use of an empty string that is used for 'everything matches' is - still warned and Git 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. That - is not scheduled to happen in the upcoming release (yet). - - * The historical argument order "git merge <msg> HEAD <commit>..." - has been deprecated for quite some time, and will be removed in a - future release. - - * An ancient script "git relink" has been removed. - - -Updates since v2.11 -------------------- - -UI, Workflows & Features - - * Various updates to "git p4". - - * "git p4" didn't interact with the internal of .git directory - correctly in the modern "git-worktree"-enabled world. - - * "git branch --list" and friends learned "--ignore-case" option to - optionally sort branches and tags case insensitively. - - * In addition to %(subject), %(body), "log --pretty=format:..." - learned a new placeholder %(trailers). - - * "git rebase" learned "--quit" option, which allows a user to - remove the metadata left by an earlier "git rebase" that was - manually aborted without using "git rebase --abort". - - * "git clone --reference $there --recurse-submodules $super" has been - taught to guess repositories usable as references for submodules of - $super that are embedded in $there while making a clone of the - superproject borrow objects from $there; extend the mechanism to - also allow submodules of these submodules to borrow repositories - embedded in these clones of the submodules embedded in the clone of - the superproject. - - * Porcelain scripts written in Perl are getting internationalized. - - * "git merge --continue" has been added as a synonym to "git commit" - to conclude a merge that has stopped due to conflicts. - - * Finer-grained control of what protocols are allowed for transports - during clone/fetch/push have been enabled via a new configuration - mechanism. - - * "git shortlog" learned "--committer" option to group commits by - committer, instead of author. - - * GitLFS integration with "git p4" has been updated. - - * The isatty() emulation for Windows has been updated to eradicate - the previous hack that depended on internals of (older) MSVC - runtime. - - * 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. - - * "git grep" has been taught to optionally recurse into submodules. - - * "git rm" used to refuse to remove a submodule when it has its own - git repository embedded in its working tree. It learned to move - the repository away to $GIT_DIR/modules/ of the superproject - instead, and allow the submodule to be deleted (as long as there - will be no loss of local modifications, that is). - - * A recent updates to "git p4" was not usable for older p4 but it - could be made to work with minimum changes. Do so. - - * "git diff" learned diff.interHunkContext configuration variable - that gives the default value for its --inter-hunk-context option. - - * The prereleaseSuffix feature of version comparison that is used in - "git tag -l" did not correctly when two or more prereleases for the - same release were present (e.g. when 2.0, 2.0-beta1, and 2.0-beta2 - are there and the code needs to compare 2.0-beta1 and 2.0-beta2). - - * "git submodule push" learned "--recurse-submodules=only option to - push submodules out without pushing the top-level superproject. - - * "git tag" and "git verify-tag" learned to put GPG verification - status in their "--format=<placeholders>" output format. - - * An ancient repository conversion tool left in contrib/ has been - removed. - - * "git show-ref HEAD" used with "--verify" because the user is not - interested in seeing refs/remotes/origin/HEAD, and used with - "--head" because the user does not want HEAD to be filtered out, - i.e. "git show-ref --head --verify HEAD", did not work as expected. - - * "git submodule add" used to be confused and refused to add a - locally created repository; users can now use "--force" option - to add them. - (merge 619acfc78c sb/submodule-add-force later to maint). - - * Some people feel the default set of colors used by "git log --graph" - rather limiting. A mechanism to customize the set of colors has - been introduced. - - * "git read-tree" and its underlying unpack_trees() machinery learned - to report problematic paths prefixed with the --super-prefix option. - - * When a submodule "A", which has another submodule "B" nested within - it, is "absorbed" into the top-level superproject, the inner - submodule "B" used to be left in a strange state. The logic to - adjust the .git pointers in these submodules has been corrected. - - * The user can specify a custom update method that is run when - "submodule update" updates an already checked out submodule. This - was ignored when checking the submodule out for the first time and - we instead always just checked out the commit that is bound to the - path in the superproject's index. - - * The command line completion (in contrib/) learned that - "git diff --submodule=" can take "diff" as a recently added option. - - * The "core.logAllRefUpdates" that used to be boolean has been - enhanced to take 'always' as well, to record ref updates to refs - other than the ones that are expected to be updated (i.e. branches, - remote-tracking branches and notes). - - * Comes with more command line completion (in contrib/) for recently - introduced options. - - -Performance, Internal Implementation, Development Support etc. - - * Commands that operate on a log message and add lines to the trailer - blocks, such as "format-patch -s", "cherry-pick (-x|-s)", and - "commit -s", have been taught to use the logic of and share the - code with "git interpret-trailer". - - * The default Travis-CI configuration specifies newer P4 and GitLFS. - - * The "fast hash" that had disastrous performance issues in some - corner cases has been retired from the internal diff. - - * The character width table has been updated to match Unicode 9.0 - - * Update the procedure to generate "tags" for developer support. - - * The codeflow of setting NOATIME and CLOEXEC on file descriptors Git - opens has been simplified. - - * "git diff" and its family had two experimental heuristics to shift - the contents of a hunk to make the patch easier to read. One of - them turns out to be better than the other, so leave only the - "--indent-heuristic" option and remove the other one. - - * A new submodule helper "git submodule embedgitdirs" to make it - easier to move embedded .git/ directory for submodules in a - superproject to .git/modules/ (and point the latter with the former - that is turned into a "gitdir:" file) has been added. - - * "git push \\server\share\dir" has recently regressed and then - fixed. A test has retroactively been added for this breakage. - - * Build updates for Cygwin. - - * The implementation of "real_path()" was to go there with chdir(2) - and call getcwd(3), but this obviously wouldn't be usable in a - threaded environment. Rewrite it to manually resolve relative - paths including symbolic links in path components. - - * Adjust documentation to help AsciiDoctor render better while not - breaking the rendering done by AsciiDoc. - - * The sequencer machinery has been further enhanced so that a later - set of patches can start using it to reimplement "rebase -i". - - * Update the definition of the MacOSX test environment used by - TravisCI. - - * Rewrite a scripted porcelain "git difftool" in C. - - * "make -C t failed" will now run only the tests that failed in the - previous run. This is usable only when prove is not use, and gives - a useless error message when run after "make clean", but otherwise - is serviceable. - - * "uchar [40]" to "struct object_id" conversion continues. - - -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). - - * We often decide if a session is interactive by checking if the - standard I/O streams are connected to a TTY, but isatty() that - comes with Windows incorrectly returned true if it is used on NUL - (i.e. an equivalent to /dev/null). This has been fixed. - - * "git svn" did not work well with path components that are "0", and - some configuration variable it uses were not documented. - - * "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. - - * A corner case in merge-recursive regression that crept in - during 2.10 development cycle has been fixed. - - * Transport with dumb http can be fooled into following foreign URLs - that the end user does not intend to, especially with the server - side redirects and http-alternates mechanism, which can lead to - security issues. Tighten the redirection and make it more obvious - to the end user when it happens. - - * 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. - - * Git 2.11 had a minor regression in "merge --ff-only" that competed - with another process that simultaneously attempted to update the - index. We used to explain what went wrong with an error message, - but the new code silently failed. The error message has been - resurrected. - - * 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. - - * 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. - - * Running "git add a/b" when "a" is a submodule correctly errored - out, but without a meaningful error message. - (merge 2d81c48fa7 sb/pathspec-errors later to maint). - - * 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. - - * "git mergetool" without any pathspec on the command line that is - run from a subdirectory became no-op in Git v2.11 by mistake, which - has been fixed. - - * Retire long unused/unmaintained gitview from the contrib/ area. - (merge 3120925c25 sb/remove-gitview later to maint). - - * Tighten a test to avoid mistaking an extended ERE regexp engine as - a PRE regexp engine. - - * An error message with an ASCII control character like '\r' in it - can alter the message to hide its early part, which is problematic - when a remote side gives such an error message that the local side - will relay with a "remote: " prefix. - (merge f290089879 jk/vreport-sanitize later to maint). - - * "git fsck" inspects loose objects more carefully now. - (merge cce044df7f jk/loose-object-fsck later to maint). - - * A crashing bug introduced in v2.11 timeframe has been found (it is - triggerable only in fast-import) and fixed. - (merge abd5a00268 jk/clear-delta-base-cache-fix later to maint). - - * With an anticipatory tweak for remotes defined in ~/.gitconfig - (e.g. "remote.origin.prune" set to true, even though there may or - may not actually be "origin" remote defined in a particular Git - repository), "git remote rename" and other commands misinterpreted - and behaved as if such a non-existing remote actually existed. - (merge e459b073fb js/remote-rename-with-half-configured-remote later to maint). - - * A few codepaths had to rely on a global variable when sorting - elements of an array because sort(3) API does not allow extra data - to be passed to the comparison function. Use qsort_s() when - natively available, and a fallback implementation of it when not, - to eliminate the need, which is a prerequisite for making the - codepath reentrant. - - * "git fsck --connectivity-check" was not working at all. - (merge a2b22854bd jk/fsck-connectivity-check-fix later to maint). - - * After starting "git rebase -i", which first opens the user's editor - to edit the series of patches to apply, but before saving the - contents of that file, "git status" failed to show the current - state (i.e. you are in an interactive rebase session, but you have - applied no steps yet) correctly. - (merge df9ded4984 js/status-pre-rebase-i later to maint). - - * Test tweak for FreeBSD where /usr/bin/unzip is unsuitable to run - our tests but /usr/local/bin/unzip is usable. - (merge d98b2c5fce js/unzip-in-usr-bin-workaround later to maint). - - * "git p4" did not work well with multiple git-p4.mapUser entries on - Windows. - (merge c3c2b05776 gv/mingw-p4-mapuser later to maint). - - * "git help" enumerates executable files in $PATH; the implementation - of "is this file executable?" on Windows has been optimized. - (merge c755015f79 hv/mingw-help-is-executable later to maint). - - * Test tweaks for those who have default ACL in their git source tree - that interfere with the umask test. - (merge d549d21307 mm/reset-facl-before-umask-test later to maint). - - * Names of the various hook scripts must be spelled exactly, but on - Windows, an .exe binary must be named with .exe suffix; notice - $GIT_DIR/hooks/<hookname>.exe as a valid <hookname> hook. - (merge 235be51fbe js/mingw-hooks-with-exe-suffix later to maint). - - * Asciidoctor, an alternative reimplementation of AsciiDoc, still - needs some changes to work with documents meant to be formatted - with AsciiDoc. "make USE_ASCIIDOCTOR=YesPlease" to use it out of - the box to document our pages is getting closer to reality. - - * Correct command line completion (in contrib/) on "git svn" - (merge 2cbad17642 ew/complete-svn-authorship-options later to maint). - - * Incorrect usage help message for "git worktree prune" has been fixed. - (merge 2488dcab22 ps/worktree-prune-help-fix later to maint). - - * Adjust a perf test to new world order where commands that do - require a repository are really strict about having a repository. - (merge c86000c1a7 rs/p5302-create-repositories-before-tests later to maint). - - * "git log --graph" did not work well with "--name-only", even though - other forms of "diff" output were handled correctly. - (merge f5022b5fed jk/log-graph-name-only later to maint). - - * The push-options given via the "--push-options" option were not - passed through to external remote helpers such as "smart HTTP" that - are invoked via the transport helper. - - * The documentation explained what "git stash" does to the working - tree (after stashing away the local changes) in terms of "reset - --hard", which was exposing an unnecessary implementation detail. - (merge 20a7e06172 tg/stash-doc-cleanup later to maint). - - * When "git p4" imports changelist that removes paths, it failed to - convert pathnames when the p4 used encoding different from the one - used on the Git side. This has been corrected. - (merge a8b05162e8 ls/p4-path-encoding later to maint). - - * A new coccinelle rule that catches a check of !pointer before the - pointer is free(3)d, which most likely is a bug. - (merge ec6cd14c7a rs/cocci-check-free-only-null later to maint). - - * "ls-files" run with pathspec has been micro-optimized to avoid - having to memmove(3) unnecessary bytes. - (merge 96f6d3f61a rs/ls-files-partial-optim later to maint). - - * A hotfix for a topic already in 'master'. - (merge a4d92d579f js/mingw-isatty later to maint). - - * Other minor doc, test and build updates and code cleanups. - (merge f2627d9b19 sb/submodule-config-cleanup later to maint). - (merge 384f1a167b sb/unpack-trees-cleanup later to maint). - (merge 874444b704 rh/diff-orderfile-doc later to maint). - (merge eafd5d9483 cw/doc-sign-off later to maint). - (merge 0aaad415bc rs/absolute-pathdup later to maint). - (merge 4432dd6b5b rs/receive-pack-cleanup later to maint). - (merge 540a398e9c sg/mailmap-self later to maint). - (merge 209df269a6 nd/rev-list-all-includes-HEAD-doc later to maint). - (merge 941b9c5270 sb/doc-unify-bottom later to maint). - (merge 2aaf37b62c jk/doc-remote-helpers-markup-fix later to maint). - (merge e91461b332 jk/doc-submodule-markup-fix later to maint). - (merge 8ab9740d9f dp/submodule-doc-markup-fix later to maint). - (merge 0838cbc22f jk/tempfile-ferror-fclose-confusion later to maint). - (merge 115a40add6 dr/doc-check-ref-format-normalize later to maint). - (merge 133f0a299d gp/document-dotfiles-in-templates-are-not-copied later to maint). - (merge 2b35a9f4c7 bc/blame-doc-fix later to maint). - (merge 7e82388024 ps/doc-gc-aggressive-depth-update later to maint). - (merge 9993a7c5f1 bc/worktree-doc-fix-detached later to maint). - (merge e519eccdf4 rt/align-add-i-help-text later to maint). |