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:
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).
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