123 lines
4.8 KiB
Plaintext
123 lines
4.8 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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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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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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* 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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