405 lines
16 KiB
Plaintext
405 lines
16 KiB
Plaintext
Git v2.38 Release Notes
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=======================
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UI, Workflows & Features
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* "git remote show [-n] frotz" now pays attention to negative
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pathspec.
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* "git push" sometimes performs poorly when reachability bitmaps are
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used, even in a repository where other operations are helped by
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bitmaps. The push.useBitmaps configuration variable is introduced
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to allow disabling use of reachability bitmaps only for "git push".
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* "git grep -m<max-hits>" is a way to limit the hits shown per file.
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* "git merge-tree" learned a new mode where it takes two commits and
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computes a tree that would result in the merge commit, if the
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histories leading to these two commits were to be merged.
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* "git mv A B" in a sparsely populated working tree can be asked to
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move a path between directories that are "in cone" (i.e. expected
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to be materialized in the working tree) and "out of cone"
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(i.e. expected to be hidden). The handling of such cases has been
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improved.
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* Earlier, HTTP transport clients learned to tell the server side
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what locale they are in by sending Accept-Language HTTP header, but
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this was done only for some requests but not others.
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* Introduce a safe.barerepository configuration variable that
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allows users to forbid discovery of bare repositories.
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* Various messages that come from the pack-bitmap codepaths have been
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tweaked.
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* "git rebase -i" learns to update branches whose tip appear in the
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rebased range with "--update-refs" option.
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* "git ls-files" learns the "--format" option to tweak its output.
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* "git cat-file" learned an option to use the mailmap when showing
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commit and tag objects.
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* When "git merge" finds that it cannot perform a merge, it should
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restore the working tree to the state before the command was
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initiated, but in some corner cases it didn't.
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* Operating modes like "--batch" of "git cat-file" command learned to
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take NUL-terminated input, instead of one-item-per-line.
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* "git rm" has become more aware of the sparse-index feature.
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* "git rev-list --disk-usage" learned to take an optional value
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"human" to show the reported value in human-readable format, like
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"3.40MiB".
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* The "diagnose" feature to create a zip archive for diagnostic
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material has been lifted from "scalar" and made into a feature of
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"git bugreport".
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* The namespaces used by "log --decorate" from "refs/" hierarchy by
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default has been tightened.
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* "git rev-list --ancestry-path=C A..B" is a natural extension of
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"git rev-list A..B"; instead of choosing a subset of A..B to those
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that have ancestry relationship with A, it lets a subset with
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ancestry relationship with C.
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* "scalar" now enables built-in fsmonitor on enlisted repositories,
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when able.
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* The bash prompt (in contrib/) learned to optionally indicate when
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the index is unmerged.
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* "git clone" command learned the "--bundle-uri" option to coordinate
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with hosting sites the use of pre-prepared bundle files.
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* "git range-diff" learned to honor pathspec argument if given.
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* "git format-patch --from=<ident>" can be told to add an in-body
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"From:" line even for commits that are authored by the given
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<ident> with "--force-in-body-from" option.
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* The built-in fsmonitor refuses to work on a network mounted
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repositories; a configuration knob for users to override this has
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been introduced.
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* The "scalar" addition from Microsoft is now part of the core Git
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installation.
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Performance, Internal Implementation, Development Support etc.
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* Collection of what is referenced by objects in promisor packs have
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been optimized to inspect these objects in the in-pack order.
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* Introduce a helper to see if a branch is already being worked on
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(hence should not be newly checked out in a working tree), which
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performs much better than the existing find_shared_symref() to
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replace many uses of the latter.
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* Teach "git archive" to (optionally and then by default) avoid
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spawning an external "gzip" process when creating ".tar.gz" (and
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".tgz") archives.
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* Allow large objects read from a packstream to be streamed into a
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loose object file straight, without having to keep it in-core as a
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whole.
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* Further preparation to turn git-submodule.sh into a builtin
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continues.
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* Apply Coccinelle rule to turn raw memmove() into MOVE_ARRAY() cpp
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macro, which would improve maintainability and readability.
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* Teach "make all" to build gitweb as well.
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* Tweak tests so that they still work when the "git init" template
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did not create .git/info directory.
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* Add Coccinelle rules to detect the pattern of initializing and then
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finalizing a structure without using it in between at all, which
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happens after code restructuring and the compilers fail to
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recognize as an unused variable.
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* The code to convert between GPG trust level strings and internal
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constants we use to represent them have been cleaned up.
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* Support for libnettle as SHA256 implementation has been added.
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* The way "git multi-pack" uses parse-options API has been improved.
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* A Coccinelle rule (in contrib/) to encourage use of COPY_ARRAY
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macro has been improved.
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* API tweak to make it easier to run fuzz testing on commit-graph parser.
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* Omit fsync-related trace2 entries when their values are all zero.
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* The codepath to write multi-pack index has been taught to release a
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large chunk of memory that holds an array of objects in the packs,
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as soon as it is done with the array, to reduce memory consumption.
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* Add a level of redirection to array allocation API in xdiff part,
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to make it easier to share with the libgit2 project.
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* "git fetch" client logs the partial clone filter used in the trace2
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output.
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* The "bundle URI" design gets documented.
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* The common ancestor negotiation exchange during a "git fetch"
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session now leaves trace log.
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* Test portability improvements.
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(merge 4d1d843be7 mt/rot13-in-c later to maint).
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* The "subcommand" mode is introduced to parse-options API and update
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the command line parser of Git commands with subcommands.
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* The pack bitmap file gained a bitmap-lookup table to speed up
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locating the necessary bitmap for a given commit.
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* The assembly version of SHA-1 implementation for PPC has been
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removed.
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* The server side that responds to "git fetch" and "git clone"
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request has been optimized by allowing it to send objects in its
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object store without recomputing and validating the object names.
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* Annotate function parameters that are not used (but cannot be
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removed for structural reasons), to prepare us to later compile
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with -Wunused warning turned on.
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* Share the text used to explain configuration variables used by "git
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<subcmd>" in "git help <subcmd>" with the text from "git help config".
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* "git mv A B" in a sparsely populated working tree can be asked to
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move a path from a directory that is "in cone" to another directory
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that is "out of cone". Handling of such a case has been improved.
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* The chainlint script for our tests has been revamped.
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Fixes since v2.37
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-----------------
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* Rewrite of "git add -i" in C that appeared in Git 2.25 didn't
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correctly record a removed file to the index, which was fixed.
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* Certain diff options are currently ignored when combined-diff is
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shown; mark them as incompatible with the feature.
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* Adjust technical/bitmap-format to be formatted by AsciiDoc, and
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add some missing information to the documentation.
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* Fixes for tests when the source directory has unusual characters in
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its path, e.g. whitespaces, double-quotes, etc.
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* "git mktree --missing" lazily fetched objects that are missing from
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the local object store, which was totally unnecessary for the purpose
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of creating the tree object(s) from its input.
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* Give _() markings to fatal/warning/usage: labels that are shown in
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front of these messages.
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* References to commands-to-be-typed-literally in "git rebase"
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documentation mark-up have been corrected.
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* In a non-bare repository, the behavior of Git when the
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core.worktree configuration variable points at a directory that has
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a repository as its subdirectory, regressed in Git 2.27 days.
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* Recent update to vimdiff layout code has been made more robust
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against different end-user vim settings.
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* Plug various memory leaks, both in the main code and in test-tool
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commands.
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* Fixes a long-standing corner case bug around directory renames in
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the merge-ort strategy.
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* The resolve-undo information in the index was not protected against
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GC, which has been corrected.
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* A corner case bug where lazily fetching objects from a promisor
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remote resulted in infinite recursion has been corrected.
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* "git clone" from a repository with some ref whose HEAD is unborn
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did not set the HEAD in the resulting repository correctly, which
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has been corrected.
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* An earlier attempt to plug leaks placed a clean-up label to jump to
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at a bogus place, which as been corrected.
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* Variable quoting fix in the vimdiff driver of "git mergetool"
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* "git shortlog -n" relied on the underlying qsort() to be stable,
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which shouldn't have. Fixed.
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* A fix for a regression in test framework.
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* mkstemp() emulation on Windows has been improved.
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* Add missing documentation for "include" and "includeIf" features in
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"git config" file format, which incidentally teaches the command
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line completion to include them in its offerings.
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* Avoid "white/black-list" in documentation and code comments.
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* Workaround for a compiler warning against use of die() in
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osx-keychain (in contrib/).
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* Workaround for a false positive compiler warning.
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* "git p4" working on UTF-16 files on Windows did not implement
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CRLF-to-LF conversion correctly, which has been corrected.
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* "git p4" did not handle non-ASCII client name well, which has been
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corrected.
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* "rerere-train" script (in contrib/) used to honor commit.gpgSign
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while recreating the throw-away merges.
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* "git checkout" miscounted the paths it updated, which has been
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corrected.
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* Fix for a bug that makes write-tree to fail to write out a
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non-existent index as a tree, introduced in 2.37.
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* There was a bug in the codepath to upgrade generation information
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in commit-graph from v1 to v2 format, which has been corrected.
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* Gitweb had legacy URL shortener that is specific to the way
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projects hosted on kernel.org used to (but no longer) work, which
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has been removed.
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* Fix build procedure for Windows that uses CMake so that it can pick
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up the shell interpreter from local installation location.
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* Conditionally allow building Python interpreter on Windows
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* Fix to lstat() emulation on Windows.
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* Older gcc with -Wall complains about the universal zero initializer
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"struct s = { 0 };" idiom, which makes developers' lives
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inconvenient (as -Werror is enabled by DEVELOPER=YesPlease). The
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build procedure has been tweaked to help these compilers.
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* Plug memory leaks in the failure code path in the "merge-ort" merge
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strategy backend.
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* "git symbolic-ref symref non..sen..se" is now diagnosed as an error.
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* A follow-up fix to a fix for a regression in 2.36 around hooks.
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* Avoid repeatedly running getconf to ask libc version in the test
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suite, and instead just as it once per script.
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* Platform-specific code that determines if a directory is OK to use
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as a repository has been taught to report more details, especially
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on Windows.
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* "vimdiff3" regression fix.
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* "git fsck" reads mode from tree objects but canonicalizes the mode
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before passing it to the logic to check object sanity, which has
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hid broken tree objects from the checking logic. This has been
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corrected, but to help existing projects with broken tree objects
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that they cannot fix retroactively, the severity of anomalies this
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code detects has been demoted to "info" for now.
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* Fixes to sparse index compatibility work for "reset" and "checkout"
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commands.
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* An earlier optimization discarded a tree-object buffer that is
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still in use, which has been corrected.
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* Fix deadlocks between main Git process and subprocess spawned via
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the pipe_command() API, that can kill "git add -p" that was
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reimplemented in C recently.
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* The sequencer machinery translated messages left in the reflog by
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mistake, which has been corrected.
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* xcalloc(), imitating calloc(), takes "number of elements of the
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array", and "size of a single element", in this order. A call that
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does not follow this ordering has been corrected.
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* The preload-index codepath made copies of pathspec to give to
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multiple threads, which were left leaked.
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* Update the version of Ubuntu used for GitHub Actions CI from 18.04
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to 22.04.
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* The auto-stashed local changes created by "git merge --autostash"
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was mixed into a conflicted state left in the working tree, which
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has been corrected.
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* Multi-pack index got corrupted when preferred pack changed from one
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pack to another in a certain way, which has been corrected.
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(merge 99e4d084ff tb/midx-with-changing-preferred-pack-fix later to maint).
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* The clean-up of temporary files created via mks_tempfile_dt() was
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racy and attempted to unlink() the leading directory when signals
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are involved, which has been corrected.
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(merge babe2e0559 rs/tempfile-cleanup-race-fix later to maint).
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* FreeBSD portability fix for "git maintenance" that spawns "crontab"
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to schedule tasks.
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(merge ee69e7884e bc/gc-crontab-fix later to maint).
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* Those who use diff-so-fancy as the diff-filter noticed a regression
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or two in the code that parses the diff output in the built-in
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version of "add -p", which has been corrected.
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(merge 0a101676e5 js/add-p-diff-parsing-fix later to maint).
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* Segfault fix-up to an earlier fix to the topic to teach "git reset"
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and "git checkout" work better in a sparse checkout.
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(merge 037f8ea6d9 vd/sparse-reset-checkout-fixes later to maint).
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* "git diff --no-index A B" managed its the pathnames of its two
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input files rather haphazardly, sometimes leaking them. The
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command line argument processing has been straightened out to clean
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it up.
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(merge 2b43dd0eb5 rs/diff-no-index-cleanup later to maint).
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* "git rev-list --verify-objects" ought to inspect the contents of
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objects and notice corrupted ones, but it didn't when the commit
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graph is in use, which has been corrected.
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(merge b27ccae34b jk/rev-list-verify-objects-fix later to maint).
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* More fixes to "add -p"
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(merge 64ec8efb83 js/builtin-add-p-portability-fix later to maint).
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* The parser in the script interface to parse-options in "git
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rev-parse" has been updated to diagnose a bogus input correctly.
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(merge f20b9c36d0 ow/rev-parse-parseopt-fix later to maint).
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* The code that manages list-object-filter structure, used in partial
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clones, leaked the instances, which has been plugged.
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(merge 66eede4a37 jk/plug-list-object-filter-leaks later to maint).
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* Fix another UI regression in the reimplemented "add -p".
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(merge f6f0ee247f rs/add-p-worktree-mode-prompt-fix later to maint).
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* "git fetch" over protocol v2 sent an incorrect ref prefix request
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to the server and made "git pull" with configured fetch refspec
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that does not cover the remote branch to merge with fail, which has
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been corrected.
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(merge 49ca2fba39 jk/proto-v2-ref-prefix-fix later to maint).
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* A result from opendir() was leaking in the commit-graph expiration
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codepath, which has been plugged.
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(merge 12f1ae5324 ml/commit-graph-expire-dir-leak-fix later to maint).
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* Just like we have coding guidelines, we now have guidelines for
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reviewers.
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(merge e01b851923 vd/doc-reviewing-guidelines later to maint).
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* Other code cleanup, docfix, build fix, etc.
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(merge 77b9e85c0f vd/fix-perf-tests later to maint).
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(merge 0682bc43f5 jk/test-crontab-fixes later to maint).
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(merge b46dd1726c cc/doc-trailer-whitespace-rules later to maint).
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