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The syntax ":/<text>" to name the latest commit with the matching
text was broken with a recent change, which has been corrected.
* ps/commit-with-message-syntax-fix:
object-name: fix reversed ordering with ":/<text>" revisions
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Correct strvec_splice() that misbehaved when the strvec is empty.
* rj/strvec-splice-fix:
strvec: `strvec_splice()` to a statically initialized vector
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The advice messages now tell the newer 'git config set' command to
set the advice.token configuration variable to squelch a message.
* bf/explicit-config-set-in-advice-messages:
advice: suggest using subcommand "git config set"
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"git tag" has been taught to refuse to create refs/tags/HEAD
as such a tag will be confusing in the context of UI provided by
the Git Porcelain commands.
* jc/forbid-head-as-tagname:
tag: "git tag" refuses to use HEAD as a tagname
t5604: do not expect that HEAD can be a valid tagname
refs: drop strbuf_ prefix from helpers
refs: move ref name helpers around
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"git describe" optimization.
* jk/describe-perf:
describe: split "found all tags" and max_candidates logic
describe: stop traversing when we run out of names
describe: stop digging for max_candidates+1
t/perf: add tests for git-describe
t6120: demonstrate weakness in disjoint-root handling
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The --ancestry-path option is designed to be given a commit that is
on the path, which was not documented, which has been corrected.
* kk/doc-ancestry-path:
doc: mention rev-list --ancestry-path restrictions
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Yet another "pass the repository through the callchain" topic.
* kn/midx-wo-the-repository:
midx: inline the `MIDX_MIN_SIZE` definition
midx: pass down `hash_algo` to functions using global variables
midx: pass `repository` to `load_multi_pack_index`
midx: cleanup internal usage of `the_repository` and `the_hash_algo`
midx-write: pass down repository to `write_midx_file[_only]`
write-midx: add repository field to `write_midx_context`
midx-write: use `revs->repo` inside `read_refs_snapshot`
midx-write: pass down repository to static functions
packfile.c: remove unnecessary prepare_packed_git() call
midx: add repository to `multi_pack_index` struct
config: make `packed_git_(limit|window_size)` non-global variables
config: make `delta_base_cache_limit` a non-global variable
packfile: pass down repository to `for_each_packed_object`
packfile: pass down repository to `has_object[_kept]_pack`
packfile: pass down repository to `odb_pack_name`
packfile: pass `repository` to static function in the file
packfile: use `repository` from `packed_git` directly
packfile: add repository to struct `packed_git`
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Introduce a new repository extension to prevent older Git versions
from mis-interpreting worktrees created with relative paths.
* cw/worktree-extension:
worktree: refactor `repair_worktree_after_gitdir_move()`
worktree: add relative cli/config options to `repair` command
worktree: add relative cli/config options to `move` command
worktree: add relative cli/config options to `add` command
worktree: add `write_worktree_linking_files()` function
worktree: refactor infer_backlink return
worktree: add `relativeWorktrees` extension
setup: correctly reinitialize repository version
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Backport oss-fuzz tests for us to our codebase.
* es/oss-fuzz:
fuzz: port fuzz-url-decode-mem from OSS-Fuzz
fuzz: port fuzz-parse-attr-line from OSS-Fuzz
fuzz: port fuzz-credential-from-url-gently from OSS-Fuzz
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"git fast-import" learned to reject paths with ".." and "." as
their components to avoid creating invalid tree objects.
* en/fast-import-verify-path:
t9300: test verification of renamed paths
fast-import: disallow more path components
fast-import: disallow "." and ".." path components
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Grammofix.
* kh/doc-update-ref-grammofix:
Documentation/git-update-ref.txt: add missing word
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Typofix.
* kh/doc-bundle-typofix:
Documentation/git-bundle.txt: fix word join typo
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Developer documentation update.
* jc/doc-error-message-guidelines:
CodingGuidelines: a handful of error message guidelines
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"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.
* jt/bundle-fsck:
transport: propagate fsck configuration during bundle fetch
fetch-pack: split out fsck config parsing
bundle: support fsck message configuration
bundle: add bundle verification options type
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Optimize reading random references out of the reftable backend by
allowing reuse of iterator objects.
* ps/reftable-iterator-reuse:
refs/reftable: reuse iterators when reading refs
reftable/merged: drain priority queue on reseek
reftable/stack: add mechanism to notify callers on reload
refs/reftable: refactor reflog expiry to use reftable backend
refs/reftable: refactor reading symbolic refs to use reftable backend
refs/reftable: read references via `struct reftable_backend`
refs/reftable: figure out hash via `reftable_stack`
reftable/stack: add accessor for the hash ID
refs/reftable: handle reloading stacks in the reftable backend
refs/reftable: encapsulate reftable stack
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Isolates the reftable subsystem from the rest of Git's codebase by
using fewer pieces of Git's infrastructure.
* ps/reftable-detach:
reftable/system: provide thin wrapper for lockfile subsystem
reftable/stack: drop only use of `get_locked_file_path()`
reftable/system: provide thin wrapper for tempfile subsystem
reftable/stack: stop using `fsync_component()` directly
reftable/system: stop depending on "hash.h"
reftable: explicitly handle hash format IDs
reftable/system: move "dir.h" to its only user
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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".
* bc/allow-upload-pack-from-other-people:
Allow cloning from repositories owned by another user
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End-user experience of "git mergetool" when the command errors out
has been improved.
* pb/mergetool-errors:
git-difftool--helper.sh: exit upon initialize_merge_tool errors
git-mergetool--lib.sh: add error message for unknown tool variant
git-mergetool--lib.sh: add error message if 'setup_user_tool' fails
git-mergetool--lib.sh: use TOOL_MODE when erroring about unknown tool
completion: complete '--tool-help' in 'git mergetool'
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Describe a case where an option value needs to be spelled as a
separate argument, i.e. "--opt val", not "--opt=val".
* jc/doc-opt-tilde-expand:
doc: option value may be separate for valid reasons
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Drop support for ancient environments in various CI jobs.
* bc/ancient-ci:
Add additional CI jobs to avoid accidental breakage
ci: remove clause for Ubuntu 16.04
gitlab-ci: switch from Ubuntu 16.04 to 20.04
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We use a singleton empty array to initialize a `struct strvec`;
similar to the empty string singleton we use to initialize a `struct
strbuf`.
Note that an empty strvec instance (with zero elements) does not
necessarily need to be an instance initialized with the singleton.
Let's refer to strvec instances initialized with the singleton as
"empty-singleton" instances.
As a side note, this is the current `strvec_pop()`:
void strvec_pop(struct strvec *array)
{
if (!array->nr)
return;
free((char *)array->v[array->nr - 1]);
array->v[array->nr - 1] = NULL;
array->nr--;
}
So, with `strvec_pop()` an instance can become empty but it does
not going to be the an "empty-singleton".
This "empty-singleton" circumstance requires us to be careful when
adding elements to instances. Specifically, when adding the first
element: when we detach the strvec instance from the singleton and
set the internal pointer in the instance to NULL. After this point we
apply `realloc()` on the pointer. We do this in
`strvec_push_nodup()`, for example.
The recently introduced `strvec_splice()` API is expected to be
normally used with non-empty strvec's. However, it can also end up
being used with "empty-singleton" strvec's:
struct strvec arr = STRVEC_INIT;
int a = 0, b = 0;
... no modification to arr, a or b ...
const char *rep[] = { "foo" };
strvec_splice(&arr, a, b, rep, ARRAY_SIZE(rep));
So, we'll try to add elements to an "empty-singleton" strvec instance.
Avoid misapplying `realloc()` to the singleton in `strvec_splice()` by
adding a special case for strvec's initialized with the singleton.
Signed-off-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Recently it was reported [1] that "look for the youngest commit
reachable from any ref with log message that match the given
pattern" syntax (i.e. ':/<text>') started to return results in
reverse recency order. This regression was introduced in Git v2.47.0
and is caused by a memory leak fix done in 57fb139b5e (object-name:
fix leaking commit list items, 2024-08-01).
The intent of the identified commit is to stop modifying the commit list
provided by the caller such that the caller can properly free all commit
list items, including those that the called function might potentially
remove from the list. This was done by creating a copy of the passed-in
commit list and modifying this copy instead of the caller-provided list.
We already knew to create such a copy beforehand with the `backup` list,
which was used to clear the `ONELINE_SEEN` commit mark after we were
done. So the refactoring simply renamed that list to `copy` and started
to operate on that list instead. There is a gotcha though: the backup
list, and thus now also the copied list, is always being prepended to,
so the resulting list is in reverse order! The end result is that we
pop commits from the wrong end of the commit list, returning commits in
reverse recency order.
Fix the bug by appending to the list instead.
[1]: <CAKOEJdcPYn3O01p29rVa+xv=Qr504FQyKJeSB-Moze04ViCGGg@mail.gmail.com>
Reported-by: Aarni Koskela <aarni@valohai.com>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit a30154187a (describe: stop traversing when we run out of names,
2024-10-31) taught git-describe to automatically reduce the
max_candidates setting to match the total number of possible names. This
lets us break out of the traversal rather than fruitlessly searching for
more candidates when there are no more to be found.
However, setting max_candidates to 0 (e.g., if the repo has no tags)
overlaps with the --exact-match option, which explicitly uses the same
value. And this causes a regression with --always, which is ignored in
exact-match mode. We used to get this in a repo with no tags:
$ git describe --always HEAD
b2f0a7f
and now we get:
$ git describe --always HEAD
fatal: no tag exactly matches 'b2f0a7f47f5f2aebe1e7fceff19a57de20a78c06'
The reason is that we bail early in describe_commit() when
max_candidates is set to 0. This logic goes all the way back to
2c33f75754 (Teach git-describe --exact-match to avoid expensive tag
searches, 2008-02-24).
We should obviously fix this regression, but there are two paths,
depending on what you think:
$ git describe --always --exact-match
and
$ git describe --always --candidates=0
should do. Since the "--always" option was added, it has always been
ignored in --exact-match (or --candidates=0) mode. I.e., we treat
--exact-match as a true exact match of a tag, and never fall back to
using --always, even if it was requested.
If we think that's a bug (or at least a misfeature), then the right
solution is to fix it by removing the early bail-out from 2c33f75754,
letting the noop algorithm run and then hitting the --always fallback
output. And then our regression naturally goes away, because it follows
the same path.
If we think that the current "--exact-match --always" behavior is the
right thing, then we have to differentiate the case where we
automatically reduced max_candidates to 0 from the case where the user
asked for it specifically. That's possible to do with a flag, but we can
also just reimplement the logic from a30154187a to explicitly break out
of the traversal when we run out of candidates (rather than relying on
the existing max_candidates check).
My gut feeling is along the lines of option 1 (it's a bug, and people
would be happy for "--exact-match --always" to give the fallback rather
than ignoring "--always"). But the documentation can be interpreted in
the other direction, and we've certainly lived with the existing
behavior for many years. So it's possible that changing it now is the
wrong thing.
So this patch fixes the regression by taking the second option,
retaining the "--exact-match" behavior as-is. There are two new tests.
The first shows that the regression is fixed (we don't even need a new
repo without tags; a restrictive --match is enough to create the
situation that there are no candidate names).
The second test confirms that the "--exact-match --always" behavior
remains unchanged and continues to die when there is no tag pointing at
the specified commit. It's possible we may reconsider this in the
future, but this shows that the approach described above is implemented
faithfully.
We can also run the perf tests in p6100 to see that we've retained the
speedup that a30154187a was going for:
Test HEAD^ HEAD
--------------------------------------------------------------------------------------
6100.2: describe HEAD 0.72(0.64+0.07) 0.72(0.66+0.06) +0.0%
6100.3: describe HEAD with one max candidate 0.01(0.00+0.00) 0.01(0.00+0.00) +0.0%
6100.4: describe HEAD with one tag 0.01(0.01+0.00) 0.01(0.01+0.00) +0.0%
Reported-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The sequencer failed to honor core.commentString in some places.
* kh/sequencer-comment-char:
sequencer: comment commit messages properly
sequencer: comment `--reference` subject line properly
sequencer: comment checked-out branch properly
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A double-free that may not trigger in practice by luck has been
corrected in the reference resolution code.
* sj/refs-symref-referent-fix:
ref-cache: fix invalid free operation in `free_ref_entry`
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The advice message currently suggests using "git config advice..." to
disable advice messages, but since
00bbdde141 (builtin/config: introduce "set" subcommand, 2024-05-06)
we have the "set" subcommand for config. Since using the subcommand is
more in-line with the modern interface, any advice should be promoting
its usage. Change the disable advice message to use the subcommand
instead. Change all uses of "git config advice" in the tests to use the
subcommand.
Signed-off-by: Bence Ferdinandy <bence@ferdinandy.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `MIDX_MIN_SIZE` definition is used to check the midx_size in
`local_multi_pack_index_one`. This definition relies on the
`the_hash_algo` global variable. Inline this and remove the global
variable usage.
With this, remove `USE_THE_REPOSITORY_VARIABLE` usage from `midx.c`.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The functions `get_split_midx_filename_ext()`, `get_midx_filename()` and
`get_midx_filename_ext()` use `hash_to_hex()` which internally uses the
`the_hash_algo` global variable.
Remove this dependency on global variables by passing down the
`hash_algo` through to the functions mentioned and instead calling
`hash_to_hex_algop()` along with the obtained `hash_algo`.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `load_multi_pack_index` function in midx uses `the_repository`
variable to access the `repository` struct. Modify the function and its
callee's to send the `repository` field.
This moves usage of `the_repository` to the `test-read-midx.c` file.
While that is not optimal, it is okay, since the upcoming commits will
slowly move the usage of `the_repository` up the layers and remove it
eventually.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the `midx.c` file, there are multiple usages of `the_repository` and
`the_hash_algo` within static functions of the file. Some of the usages
can be simply swapped out with the available `repository` struct. While
some of them can be swapped out by passing the repository to the
required functions.
This leaves out only some other usages of `the_repository` and
`the_hash_algo` in the file in non-static functions, which we'll tackle
in upcoming commits.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In a previous commit, we passed the repository field to all
subcommands in the `builtin/` directory. Utilize this to pass the
repository field down to the `write_midx_file[_only]` functions to
remove the usage of `the_repository` global variables.
With this, all usage of global variables in `midx-write.c` is removed,
hence, remove the `USE_THE_REPOSITORY_VARIABLE` guard from the file.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The struct `write_midx_context` is used to pass context for creating
MIDX files. Add the repository field here to ensure that most functions
within `midx-write.c` have access to the field and can use that instead
of the global `the_repository` variable.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function `read_refs_snapshot()` uses `parse_oid_hex()`, which relies
on the global `the_hash_algo` variable. Let's instead use
`parse_oid_hex_algop()` and provide the hash algo via `revs->repo`.
Also, while here, fix a missing newline after the function's definition.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In 'midx-write.c' there are a lot of static functions which use global
variables `the_repository` or `the_hash_algo`. In a follow up commit,
the repository variable will be added to `write_midx_context`, which
some of the functions can use. But for functions which do not have
access to this struct, pass down the required information from
non-static functions `write_midx_file` and `write_midx_file_only`.
This requires that the function `hash_to_hex` is also replaced with
`hash_to_hex_algop` since the former internally accesses the
`the_hash_algo` global variable.
This ensures that the usage of global variables is limited to these
non-static functions, which will be cleaned up in a follow up commit.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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kn/midx-wo-the-repository
* kn/pass-repo-to-builtin-sub-sub-commands:
builtin: pass repository to sub commands
Git 2.47.1
Makefile(s): avoid recipe prefix in conditional statements
doc: switch links to https
doc: update links to current pages
The eleventh batch
pack-objects: only perform verbatim reuse on the preferred pack
t5332-multi-pack-reuse.sh: demonstrate duplicate packing failure
test-lib: move malloc-debug setup after $PATH setup
builtin/difftool: intialize some hashmap variables
refspec: store raw refspecs inside refspec_item
refspec: drop separate raw_nr count
fetch: adjust refspec->raw_nr when filtering prefetch refspecs
test-lib: check malloc debug LD_PRELOAD before using
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* kn/the-repository:
packfile.c: remove unnecessary prepare_packed_git() call
midx: add repository to `multi_pack_index` struct
config: make `packed_git_(limit|window_size)` non-global variables
config: make `delta_base_cache_limit` a non-global variable
packfile: pass down repository to `for_each_packed_object`
packfile: pass down repository to `has_object[_kept]_pack`
packfile: pass down repository to `odb_pack_name`
packfile: pass `repository` to static function in the file
packfile: use `repository` from `packed_git` directly
packfile: add repository to struct `packed_git`
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Documentation mark-up updates.
* ja/git-diff-doc-markup:
doc: git-diff: apply format changes to config part
doc: git-diff: apply format changes to diff-generate-patch
doc: git-diff: apply format changes to diff-format
doc: git-diff: apply format changes to diff-options
doc: git-diff: apply new documentation guidelines
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Drop support for older libcURL and Perl.
* bc/drop-ancient-libcurl-and-perl:
gitweb: make use of s///r
Require Perl 5.26.0
INSTALL: document requirement for libcurl 7.61.0
git-curl-compat: remove check for curl 7.56.0
git-curl-compat: remove check for curl 7.53.0
git-curl-compat: remove check for curl 7.52.0
git-curl-compat: remove check for curl 7.44.0
git-curl-compat: remove check for curl 7.43.0
git-curl-compat: remove check for curl 7.39.0
git-curl-compat: remove check for curl 7.34.0
git-curl-compat: remove check for curl 7.25.0
git-curl-compat: remove check for curl 7.21.5
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Built-in Git subcommands are supplied the repository object to work
with; they learned to do the same when they invoke sub-subcommands.
* kn/pass-repo-to-builtin-sub-sub-commands:
builtin: pass repository to sub commands
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Work around Coverity warning that would not trigger in practice.
* ps/bisect-double-free-fix:
bisect: address Coverity warning about potential double free
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Use the right helper program to measure file size in performance tests.
* tb/use-test-file-size-more:
t/perf: use 'test_file_size' in more places
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A trivial "correctness" fix that does not yet matter in practice.
* tb/boundary-traversal-fix:
pack-bitmap.c: typofix in `find_boundary_objects()`
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"git fsck" learned to issue warnings on "curiously formatted" ref
contents that have always been taken valid but something Git
wouldn't have written itself (e.g., missing terminating end-of-line
after the full object name).
* sj/ref-contents-check:
ref: add symlink ref content check for files backend
ref: check whether the target of the symref is a ref
ref: add basic symref content check for files backend
ref: add more strict checks for regular refs
ref: port git-fsck(1) regular refs check for files backend
ref: support multiple worktrees check for refs
ref: initialize ref name outside of check functions
ref: check the full refname instead of basename
ref: initialize "fsck_ref_report" with zero
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The migration procedure between two ref backends has been optimized.
* ps/ref-backend-migration-optim:
reftable: rename scratch buffer
refs: adapt `initial_transaction` flag to be unsigned
reftable/block: optimize allocations by using scratch buffer
reftable/block: rename `block_writer::buf` variable
reftable/writer: optimize allocations by using a scratch buffer
refs: don't normalize log messages with `REF_SKIP_CREATE_REFLOG`
refs: skip collision checks in initial transactions
refs: use "initial" transaction semantics to migrate refs
refs/files: support symbolic and root refs in initial transaction
refs: introduce "initial" transaction flag
refs/files: move logic to commit initial transaction
refs: allow passing flags when setting up a transaction
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Leakfixes.
* ps/leakfixes-part-10: (27 commits)
t: remove TEST_PASSES_SANITIZE_LEAK annotations
test-lib: unconditionally enable leak checking
t: remove unneeded !SANITIZE_LEAK prerequisites
t: mark some tests as leak free
t5601: work around leak sanitizer issue
git-compat-util: drop now-unused `UNLEAK()` macro
global: drop `UNLEAK()` annotation
t/helper: fix leaking commit graph in "read-graph" subcommand
builtin/branch: fix leaking sorting options
builtin/init-db: fix leaking directory paths
builtin/help: fix leaks in `check_git_cmd()`
help: fix leaking return value from `help_unknown_cmd()`
help: fix leaking `struct cmdnames`
help: refactor to not use globals for reading config
builtin/sparse-checkout: fix leaking sanitized patterns
split-index: fix memory leak in `move_cache_to_base_index()`
git: refactor builtin handling to use a `struct strvec`
git: refactor alias handling to use a `struct strvec`
strvec: introduce new `strvec_splice()` function
line-log: fix leak when rewriting commit parents
...
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Give a bit of advice/hint message when "git maintenance" stops finding a
lock file left by another instance that still is potentially running.
* ps/gc-stale-lock-warning:
t7900: fix host-dependent behaviour when testing git-maintenance(1)
builtin/gc: provide hint when maintenance hits a stale schedule lock
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