git-2.53.0

[Bruce Dubbs]

New minor version.

[Bruce Dubbs]

Git v2.53 Release Notes

UI, Workflows & Features

• "git maintenance" command learned "is-needed" subcommand to tell if it is necessary to perform various maintenance tasks.

• "git replay" (experimental) learned to perform ref updates itself in a transaction by default, instead of emitting where each refs should point at and leaving the actual update to another command.

• "git blame" learns "--diff-algorithm=<algo>" option.

• "git repo info" learned "--all" option.

• Both "git apply" and "git diff" learn a new whitespace error class, "incomplete-line".

• Add a new manual that describes the data model.

• "git fast-import" learns "--signed-commits=strip-if-invalid" option to drop invalid cryptographic signature from objects.

• The use of "revision" (a connected set of commits) has been clarified in the "git replay" documentation.

• A help message from "git branch" now mentions "git help" instead of "man" when suggesting to read some documentation.

• "git repo struct" learned to take "-z" as a synonym to "--format=nul".

• More object database related information are shown in "git repo structure" output.

• Improve the error message when a bad argument is given to the --onto option of "git replay". Test coverage of "git replay" has been improved.

• The iconv library on macOS fails to correctly handle stateful ISO/IEC 2022:1994 encoded strings. Work it around instead of replacing it wholesale from homebrew.

• Upstream symbolic link support on Windows from Git-for-Windows.

Performance, Internal Implementation, Development Support etc.

• The list of packfiles used in a running Git process is moved from the packed_git structure into the packfile store.

• Some ref backend storage can hold not just the object name of an annotated tag, but the object name of the object the tag points at. The code to handle this information has been streamlined.

• As "git diff --quiet" only cares about the existence of any changes, disable rename/copy detection to skip more expensive processing whose result will be discarded anyway.

• A part of code paths that deals with loose objects has been cleaned up.

• "make strip" has been taught to strip "scalar" as well as "git".

• Dockerized jobs at the GitHub Actions CI have been taught to show more details of failed tests.

• Code refactoring around object database sources.

• Halve the memory consumed by artificial filepairs created during "git diff --find-copies-harder", also making the operation run faster.

• The "git_istream" abstraction has been revamped to make it easier to interface with pluggable object database design.

• Rewrite the only use of "mktemp()" that is subject to TOCTOU race and Stop using the insecure "mktemp()" function. (merge 10bba537c4 rs/ban-mktemp later to maint).

• In-code comment update to clarify that single-letter options are outside of the scope of command line completion script. (merge dc8a00fafe jc/completion-no-single-letter-options later to maint).

• MEMZERO_ARRAY() helper is introduced to avoid clearing only the first N bytes of an N-element array whose elements are larger than a byte.

• "git diff-files -R --find-copies-harder" has been taught to use the potential copy sources from the index correctly.

• Require C99 style flexible array member support from all platforms.

• The code path that enumerates promisor objects have been optimized to skip pointlessly parsing blob objects.

• Import newer version of "clar", unit testing framework. (merge 84071a6dea ps/clar-integers later to maint).

• The packfile_store data structure is moved from object store to odb source.

• The object-info API has been cleaned up.

• Further preparation to upstream symbolic link support on Windows.

• Remove implicit reliance on the_repository global in the APIs around tree objects and make it explicit which repository to work in.

• "git bugreport" and "git version --build-options" learned to include use of 'gettext' feature, to make it easier to diagnose problems around l10n.

• Dscho observed that SVN tests are taking too much time in CI leak checking tasks, but most time is spent not in our code but in libsvn code (which happen to be written in Perl), whose leaks have little value to discover for us. Skip SVN, P4, and CVS tests in the leak checking tasks. (merge 047bd7dfe3 js/ci-leak-skip-svn later to maint).

Fixes since v2.52

• Ever since we added whitespace rules for this project, we misspelt an entry, which has been corrected. (merge 358e94dc70 jc/gitattributes-whitespace-no-indent-fix later to maint).

• The code to expand attribute macros has been rewritten to avoid recursion to avoid running out of stack space in an uncontrolled way. (merge 42ed046866 jk/attr-macroexpand-wo-recursion later to maint).

• Adding a repository that uses a different hash function is a no-no, but "git submodule add" did not prevent it, which has been corrected. (merge 6fe288bfbc bc/submodule-force-same-hash later to maint).

• An earlier check added to osx keychain credential helper to avoid storing the credential itself supplied was overeager and rejected credential material supplied by other helper backends that it would have wanted to store, which has been corrected. (merge 4580bcd235 kn/osxkeychain-idempotent-store-fix later to maint).

• The "git repo structure" subcommand tried to align its output but mixed up byte count and display column width, which has been corrected. (merge 7a03a10a3a jx/repo-struct-utf8width-fix later to maint).

• Yet another corner case fix around renames in the "ort" merge strategy. (merge a562d90a35 en/ort-rename-another-fix later to maint).

• Test leakfix. (merge 14b561e768 jk/test-mktemp-leakfix later to maint).

• Update a version of action used at the GitHub Actions CI. (merge cd99203f86 js/ci-github-setup-go-update later to maint).

• The "return errno = EFOO, -1" construct, which is heavily used in compat/mingw.c and triggers warnings under "-Wcomma", has been rewritten to avoid the warnings. (merge af3919816f js/mingw-assign-comma-fix later to maint).

• Makefile based build have recently been updated to build a libgit.a that also has reftable and xdiff objects; CMake based build procedure has been updated to match. (merge b0d5c88cca js/cmake-libgit-fix later to maint).

• Under-allocation fix. (merge d22a488482 js/wincred-get-credential-alloc-fix later to maint).

• "git worktree list" attempts to show paths to worktrees while aligning them, but miscounted display columns for the paths when non-ASCII characters were involved, which has been corrected. (merge 08dfa59835 pw/worktree-list-display-width-fix later to maint).

• "Windows+meson" job at the GitHub Actions CI was hard to debug, as it did not show and save failed test artifacts, which has been corrected. (merge 17bd1108ea jk/ci-windows-meson-test-fix later to maint).

• Emulation code clean-up. (merge 2367c6bcd6 gf/win32-pthread-cond-wait-err later to maint).

• Various issues detected by Asan have been corrected. (merge a031b6181a jk/asan-bonanza later to maint).

• "git config get --path" segfaulted on an ":(optional)path" that does not exist, which has been corrected. (merge 0bd16856ff jc/optional-path later to maint).

• The "--committer-date-is-author-date" option of "git am/rebase" is a misguided one. The documentation is updated to discourage its use. (merge fbf3d0669f kh/doc-committer-date-is-author-date later to maint).

• The option help text given by "git config unset -h" described the "--all" option to "replace", not "unset", multiple variables, which has been corrected. (merge 18bf67b753 rs/config-unset-opthelp-fix later to maint).

• The error message given by "git config set", when the variable being updated has more than one values defined, used old style "git config" syntax with an incorrect option in its hint, both of which have been corrected. (merge df963f0df4 rs/config-set-multi-error-message-fix later to maint).

• "git replay" forgot to omit the "gpgsig-sha256" extended header from the resulting commit the same way it omits "gpgsig", which has been corrected. (merge 9f3a115087 pw/replay-exclude-gpgsig-fix later to maint).

• A few tests have been updated to work under the shell compatible mode of zsh. (merge a92f243a94 bc/zsh-testsuite later to maint).

• The way patience diff finds LCS has been optimized. (merge c7e3b8085b yc/xdiff-patience-optim later to maint).

• Recent optimization to "last-modified" command introduced use of uninitialized block of memory, which has been corrected. (merge fe4e60759b tc/last-modified-active-paths-optimization later to maint).

• "git last-modified" used to mishandle "--" to mark the beginning of pathspec, which has been corrected. (merge 05491b90ce js/last-modified-with-sparse-checkouts later to maint).

• Emulation code clean-up. (merge 42aa7603aa gf/win32-pthread-cond-init later to maint).

• "git submodule add" to add a submodule under <name> segfaulted, when a submodule.<name>.something is already in .gitmodules file without defining where its submodule.<name>.path is, which has been corrected. (merge dd8e8c786e jc/submodule-add later to maint).

• "git fetch" that involves fetching tags, when a tag being fetched needs to overwrite existing one, failed to fetch other tags, which has been corrected. (merge b7b17ec8a6 kn/fix-fetch-backfill-tag-with-batched-ref-updates later to maint).

• Document "rev-list --filter-provided-objects" better. (merge 6d8dc99478 jt/doc-rev-list-filter-provided-objects later to maint).

• Even when there is no changes in the packfile and no need to recompute bitmaps, "git repack" recomputed and updated the MIDX file, which has been corrected. (merge 6ce9d558ce ps/repack-avoid-noop-midx-rewrite later to maint).

• Update HTTP tests to adjust for changes in curl 8.18.0 (merge 17f4b01da7 jk/test-curl-updates later to maint).

• Workaround the "iconv" shipped as part of macOS, which is broken handling stateful ISO/IEC 2022 encoded strings. (merge cee341e9dd rs/macos-iconv-workaround later to maint).

• Running "git diff" with "--name-only" and other options that allows us not to look at the blob contents, while objects that are lazily fetched from a promisor remote, caused use-after-free, which has been corrected.

• The ort merge machinery hit an assertion failure in a history with criss-cross merges renamed a directory and a non-directory, which has been corrected. (merge 979ee83e8a en/ort-recursive-d-f-conflict-fix later to maint).

• Diagnose invalid bundle-URI that lack the URI entry, instead of crashing. (merge 7796c14a1a sb/bundle-uri-without-uri later to maint).

• Mailmap update for Karsten (merge e97678c4ef js/mailmap-karsten-blees later to maint).

• Perf-test fixes. (merge 79d301c767 jk/t-perf-fixes later to maint).

• Fix for a performance regression in "git cat-file". (merge 9e8b448dd8 jk/cat-file-avoid-bitmap-when-unneeded later to maint).

• Update a FAQ entry on synching two separate repositories using the "git stash export/import" recently introduced. (merge 02fc44a989 bc/doc-stash-import-export later to maint).

• "git fsck" used inconsistent set of refs to show a confused warning, which has been corrected.

• Some error messages from the http transport layer lacked the terminating newline, which has been corrected. (merge a8227ae8d5 kt/http-backend-errors later to maint).

• "git repack --geometric" did not work with promisor packs, which has been corrected.

• The logic that avoids reusing MIDX files with a wrong checksum was broken, which has been corrected.

• Other code cleanup, docfix, build fix, etc.

[Bruce Dubbs]

Fixed at commits

d07d67406b Update to qt6-6.10.2 and qtwebengine-6.10.2.
21a658970f Update to openldap-2.6.12.
abcafbecbb Update to bluefish-2.4.0.
d0f69fae93 Update to git-2.53.0.