201 lines
8.2 KiB
Plaintext
201 lines
8.2 KiB
Plaintext
Git 2.18 Release Notes
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======================
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Updates since v2.17
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-------------------
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UI, Workflows & Features
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* Rename detection logic in "diff" family that is used in "merge" has
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learned to guess when all of x/a, x/b and x/c have moved to z/a,
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z/b and z/c, it is likely that x/d added in the meantime would also
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want to move to z/d by taking the hint that the entire directory
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'x' moved to 'z'. A bug causing dirty files involved in a rename
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to be overwritten during merge has also been fixed as part of this
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work.
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* "git filter-branch" learned to use a different exit code to allow
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the callers to tell the case where there was no new commits to
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rewrite from other error cases.
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* When built with more recent cURL, GIT_SSL_VERSION can now specify
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"tlsv1.3" as its value.
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* "git gui" learned that "~/.ssh/id_ecdsa.pub" and
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"~/.ssh/id_ed25519.pub" are also possible SSH key files.
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(merge 2e2f0288ef bb/git-gui-ssh-key-files later to maint).
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* "git gui" performs commit upon CTRL/CMD+ENTER but the
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CTRL/CMD+KP_ENTER (i.e. enter key on the numpad) did not have the
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same key binding. It now does.
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(merge 28a1d94a06 bp/git-gui-bind-kp-enter later to maint).
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* "git gui" has been taught to work with old versions of tk (like
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8.5.7) that do not support "ttk::style theme use" as a way to query
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the current theme.
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(merge 4891961105 cb/git-gui-ttk-style later to maint).
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* "git rebase" has learned to honor "--signoff" option when using
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backends other than "am" (but not "--preserve-merges").
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* "git branch --list" during an interrupted "rebase -i" now lets
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users distinguish the case where a detached HEAD is being rebased
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and a normal branch is being rebased.
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* "git mergetools" learned talking to guiffy.
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Performance, Internal Implementation, Development Support etc.
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* A "git fetch" from a repository with insane number of refs into a
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repository that is already up-to-date still wasted too many cycles
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making many lstat(2) calls to see if these objects at the tips
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exist as loose objects locally. These lstat(2) calls are optimized
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away by enumerating all loose objects beforehand.
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It is unknown if the new strategy negatively affects existing use
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cases, fetching into a repository with many loose objects from a
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repository with small number of refs.
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* Git can be built to use either v1 or v2 of the PCRE library, and so
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far, the build-time configuration USE_LIBPCRE=YesPlease instructed
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the build procedure to use v1, but now it means v2. USE_LIBPCRE1
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and USE_LIBPCRE2 can be used to explicitly choose which version to
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use, as before.
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* The build procedure learned to optionally use symbolic links
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(instead of hardlinks and copies) to install "git-foo" for built-in
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commands, whose binaries are all identical.
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* Conversion from uchar[20] to struct object_id continues.
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* The way "git worktree prune" worked internally has been simplified,
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by assuming how "git worktree move" moves an existing worktree to a
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different place.
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* Code clean-up for the "repository" abstraction.
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(merge 00a3da2a13 nd/remove-ignore-env-field later to maint).
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* Code to find the length to uniquely abbreviate object names based
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on packfile content, which is a relatively recent addtion, has been
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optimized to use the same fan-out table.
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* The mechanism to use parse-options API to automate the command line
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completion continues to get extended and polished.
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* Copies of old scripted Porcelain commands in contrib/examples/ have
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been removed.
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* Some tests that rely on the exact hardcoded values of object names
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have been updated in preparation for hash function migration.
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* Perf-test update.
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* Test helper update.
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* The effort continues to refactor the internal global data structure
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to make it possible to open multiple repositories, work with and
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then close them,
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* Small test-helper programs have been consolidated into a single
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binary.
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* API clean-up around ref-filter code.
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* Shell completion (in contrib) that gives list of paths have been
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optimized somewhat.
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* The index file is updated to record the fsmonitor section after a
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full scan was made, to avoid wasting the effort that has already
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spent.
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* Performance measuring framework in t/perf learned to help bisecting
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performance regressions.
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* Some multi-word source filenames are being renamed to separate
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words with dashes instead of underscores.
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* An reusable "memory pool" implementation has been extracted from
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fast-import.c, which in turn has become the first user of the
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mem-pool API.
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Also contains various documentation updates and code clean-ups.
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Fixes since v2.17
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-----------------
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* "git shortlog cruft" aborted with a BUG message when run outside a
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Git repository. The command has been taught to complain about
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extra and unwanted arguments on its command line instead in such a
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case.
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(merge 4aa0161e83 ma/shortlog-revparse later to maint).
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* "git stash push -u -- <pathspec>" gave an unnecessary and confusing
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error message when there was no tracked files that match the
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<pathspec>, which has been fixed.
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(merge 353278687e tg/stash-untracked-with-pathspec-fix later to maint).
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* "git tag --contains no-such-commit" gave a full list of options
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after giving an error message.
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(merge 3bb0923f06 ps/contains-id-error-message later to maint).
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* "diff-highlight" filter (in contrib/) learned to undertand "git log
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--graph" output better.
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(merge 4551fbba14 jk/diff-highlight-graph-fix later to maint).
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* when refs that do not point at committish are given, "git
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filter-branch" gave a misleading error messages. This has been
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corrected.
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(merge f78ab355e7 yk/filter-branch-non-committish-refs later to maint).
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* "git submodule status" misbehaved on a submodule that has been
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removed from the working tree.
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(merge 74b6bda32f rs/status-with-removed-submodule later to maint).
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* When credential helper exits very quickly without reading its
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input, it used to cause Git to die with SIGPIPE, which has been
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fixed.
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(merge a0d51e8d0e eb/cred-helper-ignore-sigpipe later to maint).
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* "git rebase --keep-empty" still removed an empty commit if the
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other side contained an empty commit (due to the "does an
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equivalent patch exist already?" check), which has been corrected.
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(merge 3d946165e1 pw/rebase-keep-empty-fixes later to maint).
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* Some codepaths, including the refs API, get and keep relative
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paths, that go out of sync when the process does chdir(2). The
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chdir-notify API is introduced to let these codepaths adjust these
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cached paths to the new current directory.
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(merge fb9c2d2703 jk/relative-directory-fix later to maint).
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* "cd sub/dir && git commit ../path" ought to record the changes to
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the file "sub/path", but this regressed long time ago.
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(merge 86238e07ef bw/commit-partial-from-subdirectory-fix later to maint).
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* Recent introduction of "--log-destination" option to "git daemon"
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did not work well when the daemon was run under "--inetd" mode.
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(merge e67d906d73 lw/daemon-log-destination later to maint).
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* Small fix to the autoconf build procedure.
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(merge 249482daf0 es/fread-reads-dir-autoconf-fix later to maint).
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* Fix an unexploitable (because the oversized contents are not under
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attacker's control) buffer overflow.
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(merge d8579accfa bp/fsmonitor-bufsize-fix later to maint).
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* Other minor doc, test and build updates and code cleanups.
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(merge 248f66ed8e nd/trace-with-env later to maint).
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(merge 14ced5562c ys/bisect-object-id-missing-conversion-fix later to maint).
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(merge 5988eb631a ab/doc-hash-brokenness later to maint).
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(merge a4d4e32a70 pk/test-avoid-pipe-hiding-exit-status later to maint).
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(merge 05e293c1ac jk/flockfile-stdio later to maint).
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(merge e9184b0789 jk/t5561-missing-curl later to maint).
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(merge b1801b85a3 nd/worktree-move later to maint).
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(merge bbd374dd20 ak/bisect-doc-typofix later to maint).
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(merge 4855f06fb3 mn/send-email-credential-doc later to maint).
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(merge 8523b1e355 en/doc-typoes later to maint).
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(merge 43b44ccfe7 js/t5404-path-fix later to maint).
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(merge decf711fc1 ps/test-chmtime-get later to maint).
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(merge 22d11a6e8e es/worktree-docs later to maint).
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(merge 92a5dbbc22 tg/use-git-contacts later to maint).
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