Log message:
git: updated to 2.49.0

Git v2.49 Release Notes
=======================

UI, Workflows & Features
------------------------

* Completion script updates for zsh

* "git pack-objects" and its wrapper "git repack" learned an \ 
option
  to use an alternative path-hash function to improve delta-base
  selection to produce a packfile with deeper history than window
  size.

* "git gc" learned the "--expire-to" option and passes it down to
  underlying "git repack".

* "[help] autocorrect = 1" used to be a way to say "please wait for
  0.1 second after suggesting a typofix of the command name before
  running that command"; now it means "yes, if there is a plausible
  typofix for the command name, please run it immediately".

* "git clone" learned to make a shallow clone for a single commit
  that is not necessarily be at the tip of any branch.

* Lazy-loading missing files in a blobless clone on demand is costly
  as it tends to be one-blob-at-a-time.  "git backfill" is introduced
  to help bulk-download necessary files beforehand.

* "git push --atomic --porcelain" used to ignore failures from the
  other side, losing the error status from the child process, which
  has been corrected.

* "git rev-list --missing=" learned to accept "print-info" \ 
that gives
  known details expected of the missing objects, like path and type.

* Comes with an updated "gitk".

* The documentation of "git commit" and "git rebase" now refer to
  commit titles as such, not "subject".

* The value of "uname -s" is by default sent over the wire as a part
  of the "version" capability.

* "git refs migrate" can optionally be told not to migrate the reflog.

* The netrc support (via the cURL library) for the HTTP transport has
  been re-enabled.

* Removal of ".git/branches" and ".git/remotes" support in the
  BreakingChanges document has been further clarified.

* What happens to submodules during merge has been documented in a
  bit more detail.

Performance, Internal Implementation, Development Support etc.
--------------------------------------------------------------

* More -Wsign-compare fixes.

* meson-based build now supports the unsafe-sha1 build knob.

* The meson-based build procedure covers contrib/ and other places as
  well.

* The code to check LSan results has been simplified and made more
  robust.
  (merge 164a2516eb jk/lsan-race-ignore-false-positive later to maint).

* More code paths have a repository passed through the callchain,
  instead of assuming the primary the_repository object.

* Move a few more unit tests to the clar test framework.

* Introduce a new API to visit objects in batches based on a common
  path, or by type.

* Following the procedure we established to introduce breaking
  changes for Git 3.0, allow an early opt-in for removing support of
  $GIT_DIR/branches/ and $GIT_DIR/remotes/ directories to configure
  remotes.

* The code paths to interact with zlib has been cleaned up in
  preparation for building with zlib-ng.

* Foreign language interface for Rust into our code base has been added.

* All the documentation .txt files have been renamed to .adoc to help
  content aware editors.

* "git difftool" code clean-up.

* Rename processing in the recursive merge backend has seen a micro
  optimization.

* The path.[ch] API takes an explicit repository parameter passed
  throughout the callchain, instead of relying on the_repository
  singleton instance.

* Large-object promisor protocol extension has been introduced.

* The editorconfig file is updated to tell us that bash scripts are
  similar to general Bourne shell scripts.

* Meson-based build procedure forgot to build some docs, which has
  been corrected.

Fixes since v2.48
-----------------

* "git submodule" learned various ways to spell the same option,
  e.g. "--branch=B" can be spelled "--branch B" or \ 
"-bB".
  (merge b86f0f9071 re/submodule-parse-opt later to maint).

* Tweak the help text used for the option value placeholders by
  parse-options API so that translations can customize the "<>"
  placeholder signal (e.g. "--option=<value>").
  (merge 5b34dd08d0 as/long-option-help-i18n later to maint).

* CI jobs gave sporadic failures, which turns out that that the
  object finalization code was giving an error when it did not have
  to.
  (merge d7fcbe2c56 ps/object-collision-check later to maint).

* The code to compute "unique" name used git_rand() which can fail or
  get stuck; the callsite does not require cryptographic security.
  Introduce the "insecure" mode and use it appropriately.
  (merge 0b4f8afef6 ps/reftable-get-random-fix later to maint).

* A misconfigured "fsck.skiplist" configuration variable was not
  diagnosed as an error, which has been corrected.
  (merge ca7158076f jt/fsck-skiplist-parse-fix later to maint).

* Extended SHA-1 expression parser did not work well when a branch
  with an unusual name (e.g. "foo{bar") is involved.
  (merge 191f0c8db2 en/object-name-with-funny-refname-fix later to maint).

* The meson build procedure looked for the 'version-def.h' file in a
  wrong directory, which has been corrected.
  (merge 4771501c0a tc/meson-use-our-version-def-h later to maint).

* The meson build procedure for Documentation/technical/ hierarchy was
  missing necessary dependencies, which has been corrected.
  (merge 1dca492edd sj/meson-doc-technical-dependency-fix later to maint).

* The "instaweb" bound only to local IP address without \ 
"--local" and
  to all addresses with "--local", which was the other way around, when
  using Python's http.server class, which has been corrected.
  (merge 76baf97fa1 ak/instaweb-python-port-binding-fix later to maint).

* Document that it is insecure to use Personal Access Tokens, which
  some hosting providers take as username/password, embedded in URLs.
  (merge a90ff409f0 mh/doc-credential-helpers-with-pat later to maint).

* The help text from "git $cmd -h" appear on the standard output for
  some $cmd and the standard error for others.  The built-in commands
  have been fixed to show them on the standard output consistently.
  (merge f66d1423f5 jc/show-usage-help later to maint).

* The meson-driven build is now aware of "git-subtree" housed in
  contrib/subtree hierarchy.
  (merge 8454b42f94 ps/build-meson-subtree later to maint).

* It was possible for "git unpack-objects" and "git \ 
index-pack" to
  make an unaligned access, which has been corrected.
  (merge 98046591b9 jk/pack-header-parse-alignment-fix later to maint).

* The "cache" credential back-end did not handle authtype correctly,
  which has been corrected.
  (merge 0b43274850 mh/credential-cache-authtype-request-fix later to maint).

* "git branch --sort=..." and "git for-each-ref --format=... \ 
--sort=..."
  did not work as expected with some atoms, which has been corrected.
  (merge c5490ce9d1 rs/ref-fitler-used-atoms-value-fix later to maint).

* reflog entries for symbolic ref updates were broken, which has been
  corrected.
  (merge 3519492430 kn/reflog-symref-fix later to maint).

* The trace2 code was not prepared to show a configuration variable
  that is set to true using the valueless true syntax, which has been
  corrected.
  (merge 2fd367cf63 am/trace2-with-valueless-true later to maint).

* The "git refs migrate" command did not migrate the reflog for
  refs/stash, which is the contents of the stashes, which has been
  corrected.
  (merge a0bea0978f ps/reflog-migration-with-logall-fix later to maint).

* Doc and short-help text for "show-index" has been clarified to
  stress that the command reads its data from the standard input.
  (merge 49edce4ff9 jc/show-index-h-update later to maint).

* The API around choosing to use unsafe variant of SHA-1
  implementation has been updated in an attempt to make it harder to
  abuse.
  (merge 04292c3796 tb/unsafe-hash-cleanup later to maint).

* Fix bugs in an earlier attempt to fix "git refs migration".
  (merge f11f0a5a2d kn/reflog-migration-fix-fix later to maint).

* The code path used when "git fetch" fetches from a bundle file
  closed the same file descriptor twice, which sometimes broke things
  unexpectedly when the file descriptor was reused, which has been
  corrected.
  (merge 9a84794ad8 js/bundle-unbundle-fd-reuse-fix later to maint).

* "git init" to reinitialize a repository that already exists cannot
  change the hash function and ref backends; such a request is
  silently ignored now.
  (merge 7e88640cd1 ps/setup-reinit-fixes later to maint).

* "git apply" internally uses unsigned long for line numbers and uses
  strtoul() to parse numbers on the hunk headers.  It however forgot
  to check parse errors.
  (merge a206058fda pw/apply-ulong-overflow-check later to maint).

* Two CI tasks, whitespace check and style check, work on the
  difference from the base version and the version being checked, but
  the base was computed incorrectly in GitLab CI in some cases, which
  has been corrected.
  (merge acc4fb302b jt/gitlab-ci-base-fix later to maint).

* "git repack --keep-unreachable" to send unreachable objects to the
  main pack "git repack -ad" produces did not work when there is no
  existing packs, which has been corrected.
  (merge 414c82300a ps/repack-keep-unreachable-in-unpacked-repo later to maint).

* Going into a secondary worktree and asking "is the main worktree
  bare?" did not work correctly when per-worktree configuration
  option was in use, which has been corrected.

* Fetching into a bare repository incorrectly assumed it always used
  a mirror layout when deciding to update remote-tracking HEAD, which
  has been corrected.
  (merge 93dc16483a bf/fetch-set-head-fix later to maint).

* A thunderbird helper script lost its bashism.
  (merge 59d26bd961 bc/contrib-thunderbird-patch-inline-fix later to maint).

* The -G/-S options to the "diff" family of commands caused us to hit
  a BUG() when they get no values; they have been corrected.
  (merge a620046b29 bc/diff-reject-empty-arg-to-pickaxe later to maint).

* "git merge-tree --stdin" has been improved (including a workaround
  for a deadlock).
  (merge 6a9ae81015 pw/merge-tree-stdin-deadlock-fix later to maint).

* Correct the default target in Documentation/Makefile, and
  future-proof all Makefiles from similar breakages by declaring the
  default target (which happens to be "all") upfront.
  (merge 5309c1e9fb ad/set-default-target-in-makefiles later to maint).

* "git check-mailmap" used to segfault when queried without human
  readable name.
  (merge bb60c52131 jk/check-mailmap-wo-name-fix later to maint).

* Support for renaming of symbolic links on Windows has been improved.

* "git rebase -i" failed to allow rewording an empty commit that has
  been fast-forwarded.
  (merge af8fc7be10 pw/rebase-i-ff-empty-commit later to maint).

* The use of "paste" command for aggregating the test results have
  been corrected.
  (merge ce98863204 dk/test-aggregate-results-paste-fix later to maint).

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

Log message:
git: updated to 2.48.1

Git v2.48.1 Release Notes

This release merges up the fix that appears in v2.40.4, v2.41.3,
v2.42.4, v2.43.6, v2.44.3, v2.45.3, v2.46.3, and v2.47.2 to address
the security issues CVE-2024-50349 and CVE-2024-52006; see the release
notes for these versions for details.

Log message:
git: updated to 2.48.0

Git v2.48 Release Notes
=======================

UI, Workflows & Features
------------------------

 * A new configuration variable remote.<name>.serverOption makes the
   transport layer act as if the --serverOption=<value> option is
   given from the command line.

 * "git rebase --rebase-merges" now uses branch names as labels when
   able.

 * Describe the policy to introduce breaking changes.

 * Teach 'git notes add' and 'git notes append' a new '-e' flag,
   instructing them to open the note in $GIT_EDITOR before saving.

 * Documentation for "git bundle" saw improvements to more prominently
   call out the use of '--all' when creating bundles.

 * Drop support for older libcURL and Perl.

 * End-user experience of "git mergetool" when the command errors out
   has been improved.

 * "git bundle --unbundle" and "git clone" running on a \ 
bundle file
   both learned to trigger fsck over the new objects with configurable
   fck check levels.

 * When "git fetch $remote" notices that refs/remotes/$remote/HEAD is
   missing and discovers what branch the other side points with its
   HEAD, refs/remotes/$remote/HEAD is updated to point to it.

 * "git fetch" honors \ 
"remote.<remote>.followRemoteHEAD" settings to
   tweak the remote-tracking HEAD in "refs/remotes/<remote>/HEAD".

 * "git range-diff" learned to optionally show and compare merge
   commits in the ranges being compared, with the --diff-merges
   option.

Performance, Internal Implementation, Development Support etc.
--------------------------------------------------------------

 * Document "amlog" notes.

 * The way AsciiDoc is used for SYNOPSIS part of the manual pages has
   been revamped.  The sources, at least for the simple cases, got
   vastly more pleasant to work with.

 * The reftable library is now prepared to expect that the memory
   allocation function given to it may fail to allocate and to deal
   with such an error.

 * An extra worktree attached to a repository points at each other to
   allow finding the repository from the worktree (and vice versa)
   possible.  Use relative paths for this linkage.

 * Enable Windows-based CI in GitLab.

 * Commands that can also work outside Git have learned to take the
   repository instance "repo" when we know we are in a repository, and
   NULL when we are not, in a parameter.  The uses of the_repository
   variable in a few of them have been removed using the new calling
   convention.

 * The reftable sub-system grew a new reftable-specific strbuf
   replacement to reduce its dependency on Git-specific data
   structures.

 * The ref-filter machinery learns to recognize and avoid cases where
   sorting would be redundant.

 * Various platform compatibility fixes split out of the larger effort
   to use Meson as the primary build tool.

 * Treat ECONNABORTED the same as ECONNRESET in 'git credential-cache'
   to work around a possible Cygwin regression. This resolves a race
   condition caused by changes in Cygwin's handling of socket
   closures, allowing the client to exit cleanly when encountering
   ECONNABORTED.

 * Demonstrate an assertion failure in 'git mv'.

 * Documentation update to clarify that 'uploadpack.allowAnySHA1InWant'
   implies both 'allowTipSHA1InWant' and 'allowReachableSHA1InWant'.

 * Replace various calls to atoi() with strtol_i() and strtoul_ui(),
   and add improved error handling.

 * Documentation updates to 'git-update-ref(1)'.

 * Update the project's CodingGuidelines to discourage naming functions
   with a "_1()" suffix.

 * Update '.clang-format' to match project conventions.

 * Centralize documentation for repository extensions into a single place.

 * Buildfix and upgrade of Clar to a newer version.

 * Documentation mark-up updates.

 * Renaming a handful of variables and structure fields.

 * Fix for clar unit tests to support CMake build.

 * C23 compatibility updates.

 * GCC 15 compatibility updates.

 * We now ensure "index-pack" is used with the "--promisor" \ 
option
   only during a "git fetch".

 * The migration procedure between two ref backends has been optimized.

 * "git fsck" learned to issue warnings on "curiously \ 
formatted" ref
   contents that have always been treated as valid but that Git
   wouldn't have written itself (e.g., missing terminating end-of-line
   after the full object name).

 * Work around Coverity warning that would not trigger in practice.

 * Built-in Git subcommands are supplied the repository object to work
   with; they learned to do the same when they invoke sub-subcommands.

 * Drop support for ancient environments in various CI jobs.

 * Isolate the reftable subsystem from the rest of Git's codebase by
   using fewer pieces of Git's infrastructure.

 * Optimize reading random references out of the reftable backend by
   allowing reuse of iterator objects.

 * Backport oss-fuzz tests to our codebase.

 * Introduce a new repository extension to prevent older Git versions
   from mis-interpreting worktrees created with relative paths.

 * Yet another "pass the repository through the callchain" topic.

 * "git describe" learned to stop digging the history needlessly
   deeper.

 * Build procedure update plus introduction of Meson based builds.

 * Recent reftable updates mistook a NULL return from a request for
   0-byte allocation as OOM and died unnecessarily, which has been
   corrected.

 * Reftable backend adds check for upper limit of log's update_index.

 * Start working to make the codebase buildable with -Wsign-compare.

 * Regression fix for 'show-index' when run outside of a repository.

 * The meson-build procedure is integrated into CI to catch and
   prevent bitrotting.

 * "git refs migrate" learned to also migrate the reflog data across
   backends.

 * The developer documentation has been updated to give the latest
   info on gitk and git-gui maintainer.

 * CI jobs that run threaded programs under LSan has been giving false
   positives from time to time, which has been worked around.

Fixes since v2.47
-----------------

 * Doc update to clarify how periodical maintenance are scheduled,
   spread across time to avoid thundering herds.

 * Use after free and double freeing at the end in "git log -L... -p"
   had been identified and fixed.

 * On macOS, fsmonitor can fall into a race condition that results in
   a client waiting forever to be notified about an event that has
   already happened.  This problem has been corrected.

 * "git maintenance start" crashed due to an uninitialized variable
   reference, which has been corrected.

 * Fail gracefully instead of crashing when attempting to write the
   contents of a corrupt in-core index as a tree object.

 * A "git fetch" from the superproject going down to a submodule used
   a wrong remote when the default remote names are set differently
   between them.

 * Fixes compile time warnings with 64-bit MSVC.

 * Teaches 'shortlog' to explicitly use SHA-1 when operating outside
   of a repository.

 * Fix 'git grep' regression on macOS by disabling lookahead when
   encountering invalid UTF-8 byte sequences.

 * The dumb-http code regressed when the result of re-indexing a pack
   yielded an *.idx file that differs in content from the *.idx file
   it downloaded from the remote. This has been corrected by no longer
   relying on the *.idx file we got from the remote.

 * When called with '--left-right' and '--use-bitmap-index', 'rev-list'
   will produce output without any left/right markers, which has been
   corrected.

 * More leakfixes.

 * Test modernization.

 * The "--shallow-exclude=<ref>" option to various history transfer
   commands takes a ref, not an arbitrary revision.

 * A regression where commit objects missing from a commit-graph can
   cause an infinite loop when doing a fetch in a partial clone has
   been fixed.

 * The MinGW compatibility layer has been taught to support POSIX
   semantics for atomic renames when other process(es) have a file
   opened at the destination path.

 * "git gc" discards any objects that are outside promisor packs that
   are referred to by an object in a promisor pack, and we do not
   refetch them from the promisor at runtime, resulting an unusable
   repository.  Work around it by including these objects in the
   referring promisor pack at the receiving end of the fetch.

 * Avoid build/test breakage on a system without working malloc debug
   support dynamic library.
   (merge 72ad6dc368 jk/test-malloc-debug-check later to maint).

 * Double-free fix.
   (merge fe17a25905 jk/fetch-prefetch-double-free-fix later to maint).

 * Use of some uninitialized variables in "git difftool" has been
   corrected.

 * Object reuse code based on multi-pack-index sent an unwanted copy
   of object.
   (merge e199290592 tb/multi-pack-reuse-dupfix later to maint).

 * "git fast-import" can be tricked into a replace ref that maps an
   object to itself, which is a useless thing to do.
   (merge 5e904f1a4a en/fast-import-avoid-self-replace later to maint).

 * The ref-transaction hook triggered for reflog updates, which has
   been corrected.
   (merge b886db48c6 kn/ref-transaction-hook-with-reflog later to maint).

 * Give a bit of advice/hint message when "git maintenance" stops finding a
   lock file left by another instance that still is potentially running.
   (merge ba874d1dac ps/gc-stale-lock-warning later to maint).

 * Use the right helper program to measure file size in performance tests.
   (merge 3f97f1bce6 tb/use-test-file-size-more later to maint).

 * A double-free that may not trigger in practice by luck has been
   corrected in the reference resolution code.
   (merge b6318cf23a sj/refs-symref-referent-fix later to maint).

 * The sequencer failed to honor core.commentString in some places.

 * Describe a case where an option value needs to be spelled as a
   separate argument, i.e. "--opt val", not "--opt=val".
   (merge 1bc1e94091 jc/doc-opt-tilde-expand later to maint).

 * Loosen overly strict ownership check introduced in the recent past,
   to keep the promise "cloning a suspicious repository is a safe
   first step to inspect it".
   (merge 0ffb5a6bf1 bc/allow-upload-pack-from-other-people later to maint).

 * "git fast-import" learned to reject paths with ".."  and \ 
"." as
   their components to avoid creating invalid tree objects.
   (merge 8cb4c6e62f en/fast-import-verify-path later to maint).

 * The --ancestry-path option is designed to be given a commit that is
   on the path, which was not documented, which has been corrected.
   (merge bc1a980759 kk/doc-ancestry-path later to maint).

 * "git tag" has been taught to refuse to create refs/tags/HEAD
   since such a tag will be confusing in the context of the UI provided by
   the Git Porcelain commands.
   (merge bbd445d5ef jc/forbid-head-as-tagname later to maint).

 * The advice messages now tell the newer 'git config set' command to
   set the advice.token configuration variable to squelch a message.
   (merge 6c397d0104 bf/explicit-config-set-in-advice-messages later to maint).

 * The syntax ":/<text>" to name the latest commit with the matching
   text was broken with a recent change, which has been corrected.
   (merge 0ff919e87a ps/commit-with-message-syntax-fix later to maint).

 * Fix performance regression of a recent "fatten promisor pack with
   local objects" protection against an unwanted gc.

 * "git log -p --remerge-diff --reverse" was completely broken.
   (merge f94bfa1516 js/log-remerge-keep-ancestry later to maint).

 * "git bundle create" with an annotated tag on the positive end of
   the revision range had a workaround code for older limitation in
   the revision walker, which has become unnecessary.
   (merge dd1072dfa8 tc/bundle-with-tag-remove-workaround later to maint).

 * GitLab CI updates.
   (merge c6b43f663e ps/ci-gitlab-update later to maint).

 * Code to reuse objects based on bitmap contents have been tightened
   to avoid race condition even when multiple packs are involved.
   (merge 62b3ec8a3f tb/bitmap-fix-pack-reuse later to maint).

 * An earlier "csum-file checksum does not have to be computed with
   sha1dc" topic had a few code paths that had initialized an
   implementation of a hash function to be used by an unmatching hash
   by mistake, which have been corrected.
   (merge 599a63409b ps/weak-sha1-for-tail-sum-fix later to maint).

 * Other code cleanup, docfix, build fix, etc.
   (merge 77af53f56f aa/t7300-modernize later to maint).
   (merge dcd590a39d bf/t-readme-mention-reftable later to maint).
   (merge 68e3c69efa kh/trailer-in-glossary later to maint).
   (merge 91f88f76e6 tb/boundary-traversal-fix later to maint).
   (merge 168ebb7159 jc/doc-error-message-guidelines later to maint).
   (merge 18693d7d65 kh/doc-bundle-typofix later to maint).
   (merge e2f5d3b491 kh/doc-update-ref-grammofix later to maint).
   (merge 8525e92886 mh/doc-windows-home-env later to maint).

Log message:
devel/git*: Move some cross configure env to Makefile.common.

Fixes cross-build of devel/git-contrib, which relies on the same
configure run-checks as devel/git-base.

No change to native builds.

While here, omit needless :U from USE_CROSS_COMPILE reference.

Log message:
git: updated to 2.47.1

Git 2.47.1 Release Notes
========================

This is to flush accumulated fixes since 2.47.0 on the 'master'
front down to the maintenance track.

Fixes since Git 2.47
--------------------

 * Use after free and double freeing at the end in "git log -L... -p"
   had been identified and fixed.

 * On macOS, fsmonitor can fall into a race condition that results in
   a client waiting forever to be notified for an event that have
   already happened.  This problem has been corrected.

 * "git maintenance start" crashed due to an uninitialized variable
   reference, which has been corrected.

 * Fail gracefully instead of crashing when attempting to write the
   contents of a corrupt in-core index as a tree object.

 * A "git fetch" from the superproject going down to a submodule used
   a wrong remote when the default remote names are set differently
   between them.

 * The "gitk" project tree has been synchronized again with its new
   maintainer, Johannes Sixt.

Also contains minor documentation updates and code clean-ups.

Log message:
git: updated to 2.47.0

Git v2.47 Release Notes
=======================

UI, Workflows & Features
------------------------

 * Many Porcelain commands that internally use the merge machinery
   were taught to consistently honor the diff.algorithm configuration.

 * A few descriptions in "git show-ref -h" have been clarified.

 * A 'P' command to "git add -p" that passes the patch hunk to the
   pager has been added.

 * "git grep -W" omits blank lines that follow the found function at
   the end of the file, just like it omits blank lines before the next
   function.

 * The value of http.proxy can have "path" at the end for a socks
   proxy that listens to a unix-domain socket, but we started to
   discard it when we taught proxy auth code path to use the
   credential helpers, which has been corrected.

 * The code paths to compact multiple reftable files have been updated
   to correctly deal with multiple compaction triggering at the same
   time.

 * Support to specify ref backend for submodules has been enhanced.

 * "git svn" has been taught about svn:global-ignores property
   recent versions of Subversion has.

 * The default object hash and ref backend format used to be settable
   only with explicit command line option to "git init" and
   environment variables, but now they can be configured in the user's
   global and system wide configuration.

 * "git send-email" learned "--translate-aliases" option \ 
that reads
   addresses from the standard input and emits the result of applying
   aliases on them to the standard output.

 * 'git for-each-ref' learned a new "--format" atom to find the branch
   that the history leading to a given commit \ 
"%(is-base:<commit>)" is
   likely based on.

 * The command line prompt support used to be littered with bash-isms,
   which has been corrected to work with more shells.

 * Support for the RUNTIME_PREFIX feature has been added to z/OS port.

 * "git send-email" learned "--mailmap" option to allow \ 
rewriting the
   recipient addresses.

 * "git mergetool" learned to use VSCode as a merge backend.

 * "git pack-redundant" has been marked for removal in Git 3.0.

 * One-line messages to "die" and other helper functions will get LF
   added by these helper functions, but many existing messages had an
   unnecessary LF at the end, which have been corrected.

 * The "scalar clone" command learned the "--no-tags" option.

 * The environment GIT_ADVICE has been intentionally kept undocumented
   to discourage its use by interactive users.  Add documentation to
   help tool writers.

 * "git apply --3way" learned to take "--ours" and other options.

Performance, Internal Implementation, Development Support etc.
--------------------------------------------------------------

 * A build tweak knob has been simplified by not setting the value
   that is already the default; another unused one has been removed.

 * A CI job that use clang-format to check coding style issues in new
   code has been added.

 * The reviewing guidelines document now explicitly encourages people
   to give positive reviews and how.

 * Test script linter has been updated to catch an attempt to use
   one-shot export construct "VAR=VAL func" for shell functions (which
   does not work for some shells) better.

 * Some project conventions have been added to CodingGuidelines.

 * In the refs subsystem, implicit reliance of the_repository has been
   eliminated; the repository associated with the ref store object is
   used instead.

 * Various tests in reftable library have been rewritten using the unit test
   framework.

 * A test that fails on an unusually slow machine was found, and made
   less likely to cause trouble by lengthening the expiry value it
   uses.

 * An existing test of hashmap API has been rewritten with the
   unit-test framework.

 * A policy document that describes platform support levels and
   expectation on platform stakeholders has been introduced.

 * The refs API has been taught to give symref target information to
   the users of ref iterators, allowing for-each-ref and friends to
   avoid an extra ref_resolve_* API call per a symbolic ref.

 * Unit-test framework has learned a simple control structure to allow
   embedding test statements in-line instead of having to create a new
   function to contain them.

 * Incremental updates of multi-pack index files is getting worked on.

 * Use of API functions that implicitly depend on the_repository
   object in the config subsystem has been rewritten to pass a
   repository object through the callchain.

 * Unused parameters have been either marked as UNUSED to squelch
   -Wunused warnings or dropped from many functions..

 * The code in the reftable library has been cleaned up by discarding
   unused "generic" interface.

 * The underlying machinery for "git diff-index" has long been made to
   expand the sparse index as needed, but the command fully expanded
   the sparse index upfront, which now has been taught not to do.

 * More trace2 events at key points on push and fetch code paths have
   been added.

 * Make our codebase compilable with the -Werror=unused-parameter
   option.

 * "git cat-file" works well with the sparse-index, and gets marked as
   such.

 * CI started failing completely for linux32 jobs, as the step to
   upload failed test directory uses GitHub actions that is deprecated
   and is now disabled.

 * Import clar unit tests framework libgit2 folks invented for our
   use.

 * The error messages from the test script checker have been improved.

 * The convention to calling into built-in command implementation has
   been updated to pass the repository, if known, together with the
   prefix value.

 * "git apply" had custom buffer management code that predated before
   use of strbuf got widespread, which has been updated to use strbuf,
   which also plugged some memory leaks.

 * The reftable backend learned to more efficiently handle exclude
   patterns while enumerating the refs.

 * CI updates.  FreeBSD image has been updated to 13.4.
   (merge 2eeb29702e cb/ci-freebsd-13-4 later to maint).

 * Give timeout to the locking code to write to reftable, instead of
   failing on the first failure without retrying.

 * The checksum at the tail of files are now computed without
   collision detection protection.  This is safe as the consumer of
   the information to protect itself from replay attacks checks for
   hash collisions independently.

Fixes since v2.46
-----------------

 * "git add -p" by users with diff.suppressBlankEmpty set to true
   failed to parse the patch that represents an unmodified empty line
   with an empty line (not a line with a single space on it), which
   has been corrected.

 * "git checkout --ours" (no other arguments) complained that the
   option is incompatible with branch switching, which is technically
   correct, but found confusing by some users.  It now says that the
   user needs to give pathspec to specify what paths to checkout.

 * It has been documented that we avoid "VAR=VAL shell_func" and why.

 * "git rebase --help" referred to "offset" (the difference \ 
between
   the location a change was taken from and the change gets replaced)
   incorrectly and called it "fuzz", which has been corrected.

 * "git notes add -m '' --allow-empty" and friends that take prepared
   data to create notes should not invoke an editor, but it started
   doing so since Git 2.42, which has been corrected.

 * An expensive operation to prepare tracing was done in re-encoding
   code path even when the tracing was not requested, which has been
   corrected.

 * More leakfixes.

 * The credential helper to talk to OSX keychain sometimes sent
   garbage bytes after the username, which has been corrected.

 * A recent update broke "git ls-remote" used outside a repository,
   which has been corrected.

 * The patch parser in 'git apply' has been a bit more lenient against
   unexpected mode bits, like 100664, recorded on extended header lines.

 * "git config --value=foo --fixed-value section.key newvalue" barfed
   when the existing value in the configuration file used the
   valueless true syntax, which has been corrected.

 * The patch parser in "git patch-id" has been tightened to avoid
   getting confused by lines that look like a patch header in the log
   message.

 * "git reflog expire" failed to honor annotated tags when computing
   reachable commits.

 * A flakey test and incorrect calls to strtoX() functions have been
   fixed.

 * Follow-up on 2.45.1 regression fix.

 * "git rev-list ... | git diff-tree -p --remerge-diff --stdin" should
   behave more or less like "git log -p --remerge-diff" but instead it
   crashed, forgetting to prepare a temporary object store needed.

 * "git bundle unbundle" outside a repository triggered a BUG()
   unnecessarily, which has been corrected.

 * Maintenance tasks other than "gc" now properly go background when
   "git maintenance" runs them.

 * We created a useless pseudo-merge reachability bitmap that is about
   0 commits, and attempted to include commits that are not in packs,
   which made no sense.  These bugs have been corrected.
   (merge a72dfab8b8 tb/pseudo-merge-bitmap-fixes later to maint).

 * "git rebase -x --quiet" was not quiet, which was corrected.

 * The code path for compacting reftable files saw some bugfixes
   against concurrent operation.

 * The code forgot to discard unnecessary in-core commit buffer data
   for commits that "git log --skip=<number>" traversed but omitted
   from the output, which has been corrected.

 * "git verify-pack" and "git index-pack" started dying outside a
   repository, which has been corrected.

 * A data corruption bug when multi-pack-index is used and the same
   objects are stored in multiple packfiles has been corrected.

 * "git pack-refs --auto" for the files backend was too aggressive,
   which has been a bit tamed.
   (merge c3459ae9ef ps/pack-refs-auto-heuristics later to maint).

 * A file descriptor left open is now properly closed when "git
   sparse-checkout" updates the sparse patterns.

 * In a few corner cases "git diff --exit-code" failed to report
   "changes" (e.g., renamed without any content change), which has
   been corrected.

 * Cygwin does have /dev/tty support that is needed by things like
   single-key input mode.

 * The interpret-trailers command failed to recognise the end of the
   message when the commit log ends in an incomplete line.

 * "git rebase --autostash" failed to resurrect the autostashed
   changes when the command gets aborted after giving back control
   asking for hlep in conflict resolution.
   (merge bf6ab087d1 pw/rebase-autostash-fix later to maint).

 * The "imap-send" now allows to be compiled with NO_OPENSSL and
   OPENSSL_SHA1 defined together.
   (merge 997950a750 jk/no-openssl-with-openssl-sha1 later to maint).

 * The support to customize build options to adjust for older versions
   and/or older systems for the interop tests has been improved.
   (merge 22ef5f02a8 jk/interop-test-build-options later to maint).

 * Update the character width table for Unicode 16.
   (merge 44dc651132 bb/unicode-width-table-16 later to maint).

 * In Git 2.39, Git.pm stopped working in a bare repository, which has
   been corrected.
   (merge d3edb0bdde jk/git-pm-bare-repo-fix later to maint).

 * When a remote-helper dies before Git writes to it, SIGPIPE killed
   Git silently.  We now explain the situation a bit better to the end
   user in our error message.
   (merge 6e7fac9bca jk/diag-unexpected-remote-helper-death later to maint).

 * A few usability fixes to "git jump" (in contrib/).
   (merge 083b82544d jk/jump-quickfix-fixes later to maint).

 * "git diff --exit-code" ignored modified binary files, which has
   been corrected.
   (merge 9a41735af6 rs/diff-exit-code-binary later to maint).

 * When a subprocess to work in a submodule spawned by "git submodule"
   fails with SIGPIPE, the parent Git process caught the death of it,
   but gave a generic "failed to work in that submodule", which was
   misleading.  We now behave as if the parent got SIGPIPE and die.
   (merge 082caf527e pw/submodule-process-sigpipe later to maint).

 * "git archive" with pathspec magic that uses the attribute
   information did not work well, which has been corrected.
   (merge 296743a7ca rs/archive-with-attr-pathspec-fix later to maint).

 * Background tasks "git maintenance" runs may need to use credential
   information when going over the network, but a credential helper
   may work only in an interactive environment, and end up blocking a
   scheduled task waiting for UI.  Credential helpers can now behave
   differently when they are not running interactively.
   (merge b9183b0a02 ds/background-maintenance-with-credential later to maint).

 * "git --git-dir=nowhere cmd" failed to properly notice that it
   wasn't in any repository while processing includeIf.onbranch
   configuration and instead crashed.

 * When "git sparse-checkout disable" turns a sparse checkout into a
   regular checkout, the index is fully expanded.  This totally
   expected behaviour however had an "oops, we are expanding the
   index" advice message, which has been corrected.
   (merge 537e516a39 ds/sparse-checkout-expansion-advice later to maint).

 * macOS with fsmonitor daemon can hang forever when a submodule is
   involved, which has been corrected.

 * Other code cleanup, docfix, build fix, etc.
   (merge be10ac7037 jc/mailinfo-header-cleanup later to maint).
   (merge 4460e052e0 jc/range-diff-lazy-setup later to maint).
   (merge 0627c58e7a ak/typofixes later to maint).
   (merge 83799f1500 jk/t9001-deflake later to maint).
   (merge e02cc08a88 ak/typofix-2.46-maint later to maint).
   (merge 5c5d29e1c4 ps/ci-gitlab-upgrade later to maint).
   (merge 9c4c840901 jc/doc-discarding-stalled-topics later to maint).
   (merge 5e6f359f6b ds/read-cache-mempool-leakfix later to maint).

Log message:
git: updated to 2.46.2

Git 2.46.2 Release Notes
========================

This release is primarily to merge changes to unbreak the 32-bit
GitHub actions jobs we use for CI testing, so that we can release
real fixes for the 2.46.x track after they pass CI.

It also reverts the "git patch-id" change that went into 2.46.1,
as it seems to have got a regression reported (I haven't verified,
but it is better to keep a known breakage than adding an unintended
regression).

Other than that, a handful of minor bugfixes are included.

 * In a few corner cases "git diff --exit-code" failed to report
   "changes" (e.g., renamed without any content change), which has
   been corrected.

 * Cygwin does have /dev/tty support that is needed by things like
   single-key input mode.

 * The interpret-trailers command failed to recognise the end of the
   message when the commit log ends in an incomplete line.

Log message:
git: updated to 2.46.1

Git 2.46.1 Release Notes
========================

This release is primarily to merge fixes accumulated on the 'master'
front to prepare for 2.47 release that are still relevant to 2.46.x
maintenance track.

Fixes since Git 2.46
--------------------

 * "git checkout --ours" (no other arguments) complained that the
   option is incompatible with branch switching, which is technically
   correct, but found confusing by some users.  It now says that the
   user needs to give pathspec to specify what paths to checkout.

 * It has been documented that we avoid "VAR=VAL shell_func" and why.

 * "git add -p" by users with diff.suppressBlankEmpty set to true
   failed to parse the patch that represents an unmodified empty line
   with an empty line (not a line with a single space on it), which
   has been corrected.

 * "git rebase --help" referred to "offset" (the difference \ 
between
   the location a change was taken from and the change gets replaced)
   incorrectly and called it "fuzz", which has been corrected.

 * "git notes add -m '' --allow-empty" and friends that take prepared
   data to create notes should not invoke an editor, but it started
   doing so since Git 2.42, which has been corrected.

 * An expensive operation to prepare tracing was done in re-encoding
   code path even when the tracing was not requested, which has been
   corrected.

 * Perforce tests have been updated.

 * The credential helper to talk to OSX keychain sometimes sent
   garbage bytes after the username, which has been corrected.

 * A recent update broke "git ls-remote" used outside a repository,
   which has been corrected.

 * "git config --value=foo --fixed-value section.key newvalue" barfed
   when the existing value in the configuration file used the
   valueless true syntax, which has been corrected.

 * "git reflog expire" failed to honor annotated tags when computing
   reachable commits.

 * A flakey test and incorrect calls to strtoX() functions have been
   fixed.

 * Follow-up on 2.45.1 regression fix.

 * "git rev-list ... | git diff-tree -p --remerge-diff --stdin" should
   behave more or less like "git log -p --remerge-diff" but instead it
   crashed, forgetting to prepare a temporary object store needed.

 * The patch parser in "git patch-id" has been tightened to avoid
   getting confused by lines that look like a patch header in the log
   message.

 * "git bundle unbundle" outside a repository triggered a BUG()
   unnecessarily, which has been corrected.

 * The code forgot to discard unnecessary in-core commit buffer data
   for commits that "git log --skip=<number>" traversed but omitted
   from the output, which has been corrected.

 * "git verify-pack" and "git index-pack" started dying outside a
   repository, which has been corrected.

 * A corner case bug in "git stash" was fixed.

Also contains minor documentation updates and code clean-ups.