Commit Graph

13651 Commits (779fbcd9ebe8590e13ecd072d2e37dcbebd86ce5)

Author SHA1 Message Date
Patrick Steinhardt 779fbcd9eb setup: stop using `the_repository` in `initialize_repository_version()`
Stop using `the_repository` in `initialize_repository_version()` and
instead accept the repository as a parameter. The injection of
`the_repository` is thus bumped one level higher, where callers now pass
it in explicitly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:25 +09:00
Patrick Steinhardt f9210dbc8a setup: stop using `the_repository` in `setup_git_directory()`
Stop using `the_repository` in `setup_git_directory()` and instead
accept the repository as a parameter. The injection of `the_repository`
is thus bumped one level higher, where callers now pass it in
explicitly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:25 +09:00
Patrick Steinhardt a80a8e3ea6 setup: stop using `the_repository` in `setup_git_directory_gently()`
Stop using `the_repository` in `setup_git_directory_gently()` and
instead accept the repository as a parameter. The injection of
`the_repository` is thus bumped one level higher, where callers now pass
it in explicitly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:24 +09:00
Patrick Steinhardt 7a6a82fba0 setup: stop using `the_repository` in `set_git_work_tree()`
Stop using `the_repository` in `set_git_work_tree()` and instead accept
the repository as a parameter. The injection of `the_repository` is thus
bumped one level higher, where callers now pass it in explicitly.

Similar as with the preceding commit, we track whether the worktree has
been initialized already via a global variable so that we can die in
case the repository is re-initialized with a different worktree path.
Store this info in the `struct repository` instead so that we correctly
handle this per repository.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:24 +09:00
Patrick Steinhardt bd2851d84f setup: stop using `the_repository` in `setup_work_tree()`
Stop using `the_repository` in `setup_work_tree()` and instead accept
the repository as a parameter. The injection of `the_repository` is thus
bumped one level higher, where callers now pass it in explicitly.

Note that the function tracks two bits of information via global
variables. This of course doesn't make much sense anymore now that we
can set up worktrees for arbitrary repositories:

  - We track whether the worktree has already been initialized and, if
    so, we skip the call to `chdir_notify()` and setenv(3p). It does not
    make much sense to store this info in the repository, as we _would_
    want to update the environment when switching between worktrees back
    and forth.

    So instead of storing this info in the repository, we drop this
    state entirely and live with the fact that we may execute the logic
    twice. It should ultimately be idempotent though and thus not be
    much of a problem.

  - We track whether the worktree configuration is bogus. If so, and if
    later on some caller tries to setup the worktree, then we'll die
    instead. This is indeed information that we can move into the
    repository itself.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:24 +09:00
Patrick Steinhardt ea1d0f886d setup: stop using `the_repository` in `enter_repo()`
Stop using `the_repository` in `enter_repo()` and instead accept the
repository as a parameter. The injection of `the_repository` is thus
bumped one level higher, where callers now pass it in explicitly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:24 +09:00
Patrick Steinhardt 920dba4581 setup: stop using `the_repository` in `verify_non_filename()`
Stop using `the_repository` in `verify_non_filename()` and instead
accept the repository as a parameter. The injection of `the_repository`
is thus bumped one level higher, where callers now pass it in
explicitly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:24 +09:00
Patrick Steinhardt 6e7e50cc7b setup: stop using `the_repository` in `verify_filename()`
Stop using `the_repository` in `verify_filename()` and instead accept
the repository as a parameter. The injection of `the_repository` is thus
bumped one level higher, where callers now pass it in explicitly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:24 +09:00
Patrick Steinhardt e6a380201e setup: stop using `the_repository` in `path_inside_repo()`
Stop using `the_repository` in `path_inside_repo()` and instead accept
the repository as a parameter. The injection of `the_repository` is thus
bumped one level higher, where callers now pass it in explicitly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:24 +09:00
Patrick Steinhardt 2c46e933fa setup: stop using `the_repository` in `prefix_path()`
Stop using `the_repository` in `prefix_path()` and instead accept the
repository as a parameter. The injection of `the_repository` is thus
bumped one level higher, where callers now pass it in explicitly.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:24 +09:00
Patrick Steinhardt 8da5ecdb4d setup: stop using `the_repository` in `is_inside_work_tree()`
Similar as with the preceding commit, `is_inside_work_tree()` determines
whether the current working directory is located inside the worktree of
`the_repository`. Perform the same refactoring by dropping the caching
mechanism and injecting the repository that shall be checked.

Note that, same as in the preceding commit, we're also resolving the
worktree path via `realpath()`. In theory this step is not necessary as
we always set the worktree path via `repo_set_worktree()`, and that
function already resolves the path for us. But resolving the path a
second time is unlikely to matter performance-wise, and it feels fragile
to rely on the repository's worktree path being absolute. We thus
perform the same extra step even though it's ultimately not required.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:23 +09:00
Patrick Steinhardt ce70cbc294 setup: stop using `the_repository` in `is_inside_git_dir()`
The function `is_inside_git_dir()` verifies whether or not the current
working directory is located inside the gitdir of `the_repository`. This
is done by taking the gitdir path and verifying that it's a prefix of
the current working directory.

This information is cached so that we don't have to re-do this change
multiple times. Furthermore, we proactively set the value in multiple
locations so that we don't even have to perform the check when we have
discovered the repository.

While we could simply move the caching variable into the repository, the
current layout doesn't really feel sensible in the first place:

  - It can easily lead to false positives or negatives if at any point
    in time we may switch the current working directory.

  - We don't call the function in a hot loop, and neither is it overly
    expensive to compute.

Drop the caching infrastructure and instead compute the property ad-hoc
via an injected repository.

Note that there is one small gotcha: we often end up with relative
gitdir paths, and if so `is_inside_dir()` might fail. This wasn't an
issue before because of how we proactively set the cached value during
repository discovery. Now that we stop doing that it becomes a problem
though, which we work around by resolving the gitdir via `realpath()`.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-19 19:36:23 +09:00
Junio C Hamano d17a7b8191 Merge branch 'hn/git-checkout-m-with-stash'
"git checkout -m another-branch" was invented to deal with local
changes to paths that are different between the current and the new
branch, but it gave only one chance to resolve conflicts.  The command
was taught to create a stash to save the local changes.

* hn/git-checkout-m-with-stash:
  checkout -m: autostash when switching branches
  checkout: rollback lock on early returns in merge_working_tree
  sequencer: teach autostash apply to take optional conflict marker labels
  sequencer: allow create_autostash to run silently
  stash: add --label-ours, --label-theirs, --label-base for apply
2026-05-17 22:58:31 +09:00
Junio C Hamano 27caa6b4f7 Merge branch 'en/backfill-fixes-and-edges'
The 'git backfill' command now rejects revision-limiting options that
are incompatible with its operation, uses standard documentation for
revision ranges, and includes blobs from boundary commits by default
to improve performance of subsequent operations.

* en/backfill-fixes-and-edges:
  backfill: default to grabbing edge blobs too
  backfill: document acceptance of revision-range in more standard manner
  backfill: reject rev-list arguments that do not make sense
2026-05-17 22:58:29 +09:00
Junio C Hamano d14a9794dd Merge branch 'js/maintenance-fix-deadlock-on-win10'
To help Windows 10 installations, avoid removing files whose
contents are still mmap()'ed.

* js/maintenance-fix-deadlock-on-win10:
  maintenance(geometric): do release the `.idx` files before repacking
  mingw: optionally use legacy (non-POSIX) delete semantics
2026-05-12 11:04:46 +09:00
Junio C Hamano 718db095c2 Merge branch 'ar/parallel-hooks'
Hook scripts defined via the configuration system can now be
configured to run in parallel.

* ar/parallel-hooks:
  t1800: test SIGPIPE with parallel hooks
  hook: allow hook.jobs=-1 to use all available CPU cores
  hook: add hook.<event>.enabled switch
  hook: move is_known_hook() to hook.c for wider use
  hook: warn when hook.<friendly-name>.jobs is set
  hook: add per-event jobs config
  hook: add -j/--jobs option to git hook run
  hook: mark non-parallelizable hooks
  hook: allow pre-push parallel execution
  hook: allow parallel hook execution
  hook: parse the hook.jobs config
  config: add a repo_config_get_uint() helper
  repository: fix repo_init() memleak due to missing _clear()
2026-05-11 10:05:53 +09:00
Johannes Schindelin 4bb086cfa2 maintenance(geometric): do release the `.idx` files before repacking
As is done for all the other maintenance tasks, let's release the ODB
also before starting the geometric repacking. That way, the `.idx` files
won't be `mmap()`ed when they are to be deleted (which does not work on
Windows because you cannot delete files on that platform as long as they
are kept open by a process).

This regression was introduced by 9bc151850c (builtin/maintenance:
introduce "geometric-repack" task, 2025-10-24), but was only noticed
once geometric repacking was made the default in 452b12c2e0 (builtin/
maintenance: use "geometric" strategy by default, 2026-02-24).

The fix recapitulates my work from df76ee7b77f0 (run-command: offer to
close the object store before running, 2021-09-09) & friends.

To guard against future regressions of this kind, add a check to
`run_and_verify_geometric_pack()` in `t7900` that detects orphaned
`.idx` files left behind after repacking. Contrary to interactive
calls, the `git maintenance` call in that test case would _not_ block on
Windows, asking whether to retry deleting that file, which is the reason
why this bug was not caught earlier.

Furthermore, since the default behavior of `DeleteFileW()` was changed
at some point between Windows 10 Build 17134.1304 and Build 18363.657
to use POSIX semantics (see https://stackoverflow.com/a/60512798),
the added orphaned-`.idx` check would be insufficient to catch this
regression on modern Windows without emulating legacy delete semantics
via `GIT_TEST_LEGACY_DELETE=1`.

This fixes https://github.com/git-for-windows/git/issues/6210.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-08 09:53:12 +09:00
Harald Nordgren c07039ebc4 checkout -m: autostash when switching branches
When switching branches with "git checkout -m", the attempted merge
of local modifications may cause conflicts with the changes made on
the other branch, which the user may not want to (or may not be able
to) resolve right now.  Because there is no easy way to recover from
this situation, we discouraged users from using "checkout -m" unless
they are certain their changes are trivial and within their ability
to resolve conflicts.

Teach the -m flow to create a temporary stash before switching and
reapply it after.  On success, the stash is silently applied and
the list of locally modified paths is shown, same as a successful
"git checkout" without "-m".

If reapplying causes conflicts, the stash is kept and the user is
told they can resolve and run "git stash drop", or run "git reset
--hard" and later "git stash pop" to recover their changes.

Signed-off-by: Harald Nordgren <haraldnordgren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-29 21:46:03 +09:00
Harald Nordgren 26e4e50d46 checkout: rollback lock on early returns in merge_working_tree
merge_working_tree() acquires the index lock via
repo_hold_locked_index() but several early return paths exit
without calling rollback_lock_file(), leaving the lock held.
While this is currently harmless because the process exits soon
after, it becomes a problem if the function is ever called more
than once in the same process.

Add rollback_lock_file() calls to all early return paths.

Signed-off-by: Harald Nordgren <haraldnordgren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-29 21:46:03 +09:00
Harald Nordgren e1c8b2d4ec sequencer: teach autostash apply to take optional conflict marker labels
Add label_ours, label_theirs, label_base, and stash_msg parameters to
apply_autostash_ref() and the autostash apply machinery so callers can
pass custom conflict marker labels through to
"git stash apply --label-ours/--label-theirs/--label-base", as well as
a custom stash message for "git stash store -m".

Signed-off-by: Harald Nordgren <haraldnordgren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-29 21:46:03 +09:00
Harald Nordgren 93177db652 sequencer: allow create_autostash to run silently
Add a silent parameter to create_autostash_internal and introduce
create_autostash_ref_silent so that callers can create an autostash
without printing the "Created autostash" message.

Signed-off-by: Harald Nordgren <haraldnordgren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-29 21:46:02 +09:00
Harald Nordgren 13817db274 stash: add --label-ours, --label-theirs, --label-base for apply
Allow callers of "git stash apply" to pass custom labels for conflict
markers instead of the default "Updated upstream" and "Stashed changes".
Document the new options and add a test.

Signed-off-by: Harald Nordgren <haraldnordgren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-29 21:46:02 +09:00
Elijah Newren a1ad4a0fca backfill: default to grabbing edge blobs too
Commit 302aff0922 (backfill: accept revision arguments, 2026-03-26) added
support for accepting revision arguments to backfill.  This allows users
to do things like

   git backfill --remotes ^v2.3.0

and then run many commands without triggering on-demand downloads of
blobs.  However, if they have topics based on v2.3.0, they will likely
still trigger on-demand downloads.  Consider, for example, the command

   git log -p v2.3.0..topic

This would still trigger on-demand blob loadings after the backfill
command above, because the commit(s) with A as a parent will need to
diff against the blobs in A.  In fact, multiple commands need blobs from
the lower boundary of the revision range:

   * git log -p A..B                # After backfill A..B
   * git replay --onto TARGET A..B  # After backfill TARGET^! A..B
   * git checkout A && git merge B  # After backfill A...B

Add an extra --[no-]include-edges flag to allow grabbing blobs from
edge commits.  Since the point of backfill is to prevent on-demand blob
loading and these are common commands, default to --include-edges.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-15 20:32:29 -07:00
Elijah Newren ef6d3c9474 backfill: document acceptance of revision-range in more standard manner
302aff0922 (backfill: accept revision arguments, 2026-03-26) added
support for passing revision arguments to 'git backfill' but documented
them only with a prose sentence:

    You may also specify the commit limiting options from
    git-rev-list(1).

No other command that accepts revision arguments documents them this
way.  Commands like log, shortlog, and replay define a formal
<revision-range> entry and include rev-list-options.adoc.  Commands like
bundle, fast-export, and filter-branch, which pass arguments through to
the revision machinery without including the full options file, still
define a formal <git-rev-list-args> entry explaining what is accepted.

Add a formal <revision-range> entry in the synopsis and OPTIONS section,
following the convention used by other commands, and mention that
commit-limiting options from git-rev-list(1) are also accepted.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-15 20:32:21 -07:00
Elijah Newren 6b79aee7de backfill: reject rev-list arguments that do not make sense
Some rev-list options accepted by setup_revisions() are silently
ignored or actively counterproductive when used with 'git backfill',
because the path-walk API has its own tree-walking logic that bypasses
the mechanisms these options rely on:

  * -S/-G (pickaxe) and --diff-filter work by computing per-commit
    diffs in get_revision_1() and filtering commits whose diffs don't
    match.  Since backfill's goal is to download all blobs reachable
    from commits in the range, filtering out commits based on diff
    content would silently skip blobs -- the opposite of what users
    want.

  * --follow disables path pruning (revs->prune) and only makes
    sense for tracking a single file through renames in log output.
    It has no useful interaction with backfill.

  * -L (line-log) computes line-level diffs to track the evolution
    of a function or line range.  Like pickaxe, it filters commits
    based on diff content, which would cause blobs to be silently
    skipped.

  * --diff-merges controls how merge commit diffs are displayed.
    The path-walk API walks trees directly and never computes
    per-commit diffs, so this option would be silently ignored.

  * --filter (object filtering, e.g. --filter=blob:none) is used by
    the list-objects traversal but is completely ignored by the
    path-walk API, so it would silently do nothing.

Rather than letting users think these options are being honored,
reject them with a clear error message.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-15 20:32:21 -07:00
Adrian Ratiu 495b7d54dc hook: allow hook.jobs=-1 to use all available CPU cores
Allow -1 as a value for hook.jobs, hook.<event>.jobs, and the -j
CLI flag to mean "use as many jobs as there are CPU cores", matching
the convention used by fetch.parallel and other Git subsystems.

The value is resolved to online_cpus() at parse time so the rest
of the code always works with a positive resolved count.

Other non-positive values (0, -2, etc) are rejected with a warning
(config) or die (CLI).

Suggested-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-10 07:58:55 -07:00
Adrian Ratiu dcfb5af67e hook: add hook.<event>.enabled switch
Add a hook.<event>.enabled config key that disables all hooks for
a given event, when set to false, acting as a high-level switch
above the existing per-hook hook.<friendly-name>.enabled.

Event-disabled hooks are shown in "git hook list" with an
"event-disabled" tab-separated prefix before the name:

$ git hook list test-hook
event-disabled  hook-1
event-disabled  hook-2

With --show-scope:

$ git hook list --show-scope test-hook
local   event-disabled  hook-1

When a hook is both per-hook disabled and event-disabled, only
"event-disabled" is shown: the event-level switch is the more
relevant piece of information, and the per-hook "disabled" status
will surface once the event is re-enabled.

Using an event name as a friendly-name (e.g. hook.<event>.enabled)
can cause ambiguity, so a fatal error is issued when using a known
event name and a warning is issued for unknown event name, since
a collision cannot be detected with certainty for unknown events.

Suggested-by: Patrick Steinhardt <ps@pks.im>
Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-10 07:58:54 -07:00
Adrian Ratiu 2eb541e8f2 hook: move is_known_hook() to hook.c for wider use
Move is_known_hook() from builtin/hook.c (static) into hook.c and
export it via hook.h so it can be reused.

Make it return bool and the iterator `h` for clarity (iterate hooks).

Both meson.build and the Makefile are updated to reflect that the
header is now used by libgit, not the builtin sources.

The next commit will use this to reject hook friendly-names that
collide with known event names.

Co-authored-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-10 07:58:54 -07:00
Emily Shaffer 091d2dbeb4 hook: add -j/--jobs option to git hook run
Expose the parallel job count as a command-line flag so callers can
request parallelism without relying only on the hook.jobs config.

Add tests covering serial/parallel execution and TTY behaviour under
-j1 vs -jN.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-10 07:58:54 -07:00
Emily Shaffer ae25764e50 hook: mark non-parallelizable hooks
Several hooks are known to be inherently non-parallelizable, so initialize
them with RUN_HOOKS_OPT_INIT_FORCE_SERIAL. This pins jobs=1 and overrides
any hook.jobs or runtime -j flags.

These hooks are:
applypatch-msg, pre-commit, prepare-commit-msg, commit-msg, post-commit,
post-checkout, and push-to-checkout.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-10 07:58:53 -07:00
Junio C Hamano c343f9cdc2 Merge branch 'ds/rev-list-maximal-only-optim'
"git rev-list --maximal-only" has been optimized by borrowing the
logic used by "git show-branch --independent", which computes the
same kind of information much more efficiently.

* ds/rev-list-maximal-only-optim:
  rev-list: use reduce_heads() for --maximal-only
  p6011: add perf test for rev-list --maximal-only
  t6600: test --maximal-only and --independent
2026-04-09 11:21:59 -07:00
Junio C Hamano 3eabc358a9 Merge branch 'jk/c23-const-preserving-fixes-more'
Further work to adjust the codebase for C23 that changes functions
like strchr() that discarded constness when they return a pointer into
a const string to preserve constness.

* jk/c23-const-preserving-fixes-more:
  git-compat-util: fix CONST_OUTPARAM typo and indentation
  refs/files-backend: drop const to fix strchr() warning
  http: drop const to fix strstr() warning
  range-diff: drop const to fix strstr() warnings
  pkt-line: make packet_reader.line non-const
  skip_prefix(): check const match between in and out params
  pseudo-merge: fix disk reads from find_pseudo_merge()
  find_last_dir_sep(): convert inline function to macro
  run-command: explicitly cast away constness when assigning to void
  pager: explicitly cast away strchr() constness
  transport-helper: drop const to fix strchr() warnings
  http: add const to fix strchr() warnings
  convert: add const to fix strchr() warnings
2026-04-09 11:21:59 -07:00
Junio C Hamano 37a4780f2c Merge branch 'tc/replay-ref'
The experimental `git replay` command learned the `--ref=<ref>` option
to allow specifying which ref to update, overriding the default behavior.

* tc/replay-ref:
  replay: allow to specify a ref with option --ref
  replay: use stuck form in documentation and help message
  builtin/replay: mark options as not negatable
2026-04-08 10:19:18 -07:00
Junio C Hamano 9797fed6ce Merge branch 'ps/odb-cleanup'
Various code clean-up around odb subsystem.

* ps/odb-cleanup:
  odb: drop unneeded headers and forward decls
  odb: rename `odb_has_object()` flags
  odb: use enum for `odb_write_object` flags
  odb: rename `odb_write_object()` flags
  treewide: use enum for `odb_for_each_object()` flags
  CodingGuidelines: document our style for flags
2026-04-08 10:19:17 -07:00
Junio C Hamano 6c9fbf4fcd Merge branch 'rs/history-short-help-fix'
Glitches in "git history -h" have been corrected.

* rs/history-short-help-fix:
  history: fix short help for argument of --update-refs
2026-04-07 14:59:28 -07:00
Junio C Hamano f1743ad69a Merge branch 'th/backfill-auto-detect-sparseness-fix'
"git backfill" is capable of auto-detecting a sparsely checked out
working tree, which was broken.

* th/backfill-auto-detect-sparseness-fix:
  backfill: auto-detect sparse-checkout from config
2026-04-07 14:59:28 -07:00
Junio C Hamano b66c97cc64 Merge branch 'ps/receive-pack-updateinstead-in-worktree'
The check in "receive-pack" to prevent a checked out branch from
getting updated via updateInstead mechanism has been corrected.

* ps/receive-pack-updateinstead-in-worktree:
  receive-pack: use worktree HEAD for updateInstead
  t5516: clean up cloned and new-wt in denyCurrentBranch and worktrees test
  t5516: test updateInstead with worktree and unborn bare HEAD
2026-04-07 14:59:27 -07:00
Junio C Hamano f1edda9bfb Merge branch 'jt/fast-import-signed-modes'
Handling of signed commits and tags in fast-import has been made more
configurable.

* jt/fast-import-signed-modes:
  fast-import: add 'abort-if-invalid' mode to '--signed-tags=<mode>'
  fast-import: add 'sign-if-invalid' mode to '--signed-tags=<mode>'
  fast-import: add 'strip-if-invalid' mode to '--signed-tags=<mode>'
  fast-import: add 'abort-if-invalid' mode to '--signed-commits=<mode>'
  fast-export: check for unsupported signing modes earlier
2026-04-07 14:59:27 -07:00
Junio C Hamano 7b6d0cd51b Merge branch 'ps/fsck-wo-the-repository'
Internals of "git fsck" have been refactored to not depend on the
global `the_repository` variable.

* ps/fsck-wo-the-repository:
  builtin/fsck: stop using `the_repository` in error reporting
  builtin/fsck: stop using `the_repository` when marking objects
  builtin/fsck: stop using `the_repository` when checking packed objects
  builtin/fsck: stop using `the_repository` with loose objects
  builtin/fsck: stop using `the_repository` when checking reflogs
  builtin/fsck: stop using `the_repository` when checking refs
  builtin/fsck: stop using `the_repository` when snapshotting refs
  builtin/fsck: fix trivial dependence on `the_repository`
  fsck: drop USE_THE_REPOSITORY
  fsck: store repository in fsck options
  fsck: initialize fsck options via a function
  fetch-pack: move fsck options into function scope
2026-04-07 14:59:26 -07:00
Junio C Hamano fbd0428cc3 Merge branch 'jk/c23-const-preserving-fixes'
Adjust the codebase for C23 that changes functions like strchr()
that discarded constness when they return a pointer into a const
string to preserve constness.

* jk/c23-const-preserving-fixes:
  config: store allocated string in non-const pointer
  rev-parse: avoid writing to const string for parent marks
  revision: avoid writing to const string for parent marks
  rev-parse: simplify dotdot parsing
  revision: make handle_dotdot() interface less confusing
2026-04-06 15:42:51 -07:00
Junio C Hamano a2dc765251 Merge branch 'qb/doc-git-stash-push-optionality'
Doc update.

* qb/doc-git-stash-push-optionality:
  docs: fix "git stash [push]" documentation
2026-04-06 15:42:50 -07:00
Junio C Hamano 03311dca7f Merge branch 'tb/stdin-packs-excluded-but-open'
pack-objects's --stdin-packs=follow mode learns to handle
excluded-but-open packs.

* tb/stdin-packs-excluded-but-open:
  repack: mark non-MIDX packs above the split as excluded-open
  pack-objects: support excluded-open packs with --stdin-packs
  t7704: demonstrate failure with once-cruft objects above the geometric split
  pack-objects: refactor `read_packs_list_from_stdin()` to use `strmap`
  pack-objects: plug leak in `read_stdin_packs()`
2026-04-06 15:42:49 -07:00
Junio C Hamano d75badf83b Merge branch 'ps/odb-generic-object-name-handling'
Object name handling (disambiguation and abbreviation) has been
refactored to be backend-generic, moving logic into the respective
object database backends.

* ps/odb-generic-object-name-handling:
  odb: introduce generic `odb_find_abbrev_len()`
  object-file: move logic to compute packed abbreviation length
  object-name: move logic to compute loose abbreviation length
  object-name: simplify computing common prefixes
  object-name: abbreviate loose object names without `disambiguate_state`
  object-name: merge `update_candidates()` and `match_prefix()`
  object-name: backend-generic `get_short_oid()`
  object-name: backend-generic `repo_collect_ambiguous()`
  object-name: extract function to parse object ID prefixes
  object-name: move logic to iterate through packed prefixed objects
  object-name: move logic to iterate through loose prefixed objects
  odb: introduce `struct odb_for_each_object_options`
  oidtree: extend iteration to allow for arbitrary return codes
  oidtree: modernize the code a bit
  object-file: fix sparse 'plain integer as NULL pointer' error
2026-04-06 15:42:49 -07:00
Derrick Stolee b0ba57daa8 rev-list: use reduce_heads() for --maximal-only
The 'git rev-list --maximal-only' option filters the output to only
independent commits. A commit is independent if it is not reachable from
other listed commits. Currently this is implemented by doing a full
revision walk and marking parents with CHILD_VISITED to skip non-maximal
commits.

The 'git merge-base --independent' command computes the same result
using reduce_heads(), which uses the more efficient remove_redundant()
algorithm. This is significantly faster because it avoids walking the
entire commit graph.

Add a fast path in rev-list that detects when --maximal-only is the only
interesting option and all input commits are positive (no revision
ranges). In this case, use reduce_heads() directly instead of doing a
full revision walk.

In order to preserve the rest of the output filtering, this computation
is done opportunistically in a new prepare_maximal_independent() method
when possible. If successful, it populates revs->commits with the list
of independent commits and set revs->no_walk to prevent any other walk
from occurring. This allows us to have any custom output be handled
using the existing output code hidden inside
traverse_commit_list_filtered(). A new test is added to demonstrate that
this output is preserved.

The fast path is only used when no other flags complicate the walk or
output format: no UNINTERESTING commits, no limiting options (max-count,
age filters, path filters, grep filters), no output formatting beyond
plain OIDs, and no object listing flags.

Running the p6011 performance test for my copy of git.git, I see the
following improvement with this change:

  Test                                     HEAD~1  HEAD
  ------------------------------------------------------------
  6011.2: merge-base --independent          0.03   0.03 +0.0%
  6011.3: rev-list --maximal-only           0.06   0.03 -50.0%
  6011.4: rev-list --maximal-only --since   0.06   0.06 +0.0%

And for a fresh clone of the Linux kernel repository, I see:

  Test                                     HEAD~1  HEAD
  ------------------------------------------------------------
  6011.2: merge-base --independent          0.00   0.00 =
  6011.3: rev-list --maximal-only           0.70   0.00 -100.0%
  6011.4: rev-list --maximal-only --since   0.70   0.70 +0.0%

In both cases, the performance is indeed matching the behavior of 'git
merge-base --independent', as expected.

Signed-off-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-06 12:02:30 -07:00
René Scharfe 26b9946dd7 history: fix short help for argument of --update-refs
"print" is not a valid argument for --update-refs.  List both valid
alternatives literally in the argh string, consistent with documentation
and usage string.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-06 10:17:36 -07:00
Trieu Huynh 339eba65a7 backfill: auto-detect sparse-checkout from config
Commit 85127bcdea ("backfill: assume --sparse when sparse-checkout is
enabled") intended for 'git backfill' to consult the repository
configuration when the user does not pass '--sparse' or
'--no-sparse' on the command line. It added the sentinel check:

    if (ctx->sparse < 0)
        ctx->sparse = cfg->apply_sparse_checkout;

However, the ctx->sparse field is initialized to 0 instead of -1,
so this guard never triggers. Consequently, the repository config
(core.sparseCheckout) is never checked, and the command always
performs a full backfill even when sparse-checkout is enabled.

Fix this by initializing ctx->sparse to -1, ensuring the existing
fallback logic correctly reads the repository configuration when
no explicit flags are provided.

Add a test to verify that 'git backfill' automatically respects
sparse-checkout settings when no flags are passed.

Signed-off-by: Trieu Huynh <vikingtc4@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-06 09:26:08 -07:00
Junio C Hamano e0613d24f9 Merge branch 'sa/replay-revert'
"git replay" (experimental) learns, in addition to "pick" and
"replay", a new operating mode "revert".

* sa/replay-revert:
  replay: add --revert mode to reverse commit changes
  sequencer: extract revert message formatting into shared function
2026-04-03 13:01:09 -07:00
Junio C Hamano 05ddb9ee8a Merge branch 'pw/worktree-reduce-the-repository'
Reduce the reference to the_repository in the worktree subsystem.

* pw/worktree-reduce-the-repository:
  worktree: reject NULL worktree in get_worktree_git_dir()
  worktree add: stop reading ".git/HEAD"
  worktree: remove "the_repository" from is_current_worktree()
2026-04-03 13:01:09 -07:00
Junio C Hamano 0cd4fb9f46 Merge branch 'ar/config-hook-cleanups'
Code clean-up around the recent "hooks defined in config" topic.

* ar/config-hook-cleanups:
  hook: reject unknown hook names in git-hook(1)
  hook: show disabled hooks in "git hook list"
  hook: show config scope in git hook list
  hook: introduce hook_config_cache_entry for per-hook data
  t1800: add test to verify hook execution ordering
  hook: make consistent use of friendly-name in docs
  hook: replace hook_list_clear() -> string_list_clear_func()
  hook: detect & emit two more bugs
  hook: rename cb_data_free/alloc -> hook_data_free/alloc
  hook: fix minor style issues
  builtin/receive-pack: properly init receive_hook strbuf
  hook: move unsorted_string_list_remove() to string-list.[ch]
2026-04-03 13:01:09 -07:00
Junio C Hamano 4e5821732e Merge branch 'ds/backfill-revs'
`git backfill` learned to accept revision and pathspec arguments.

* ds/backfill-revs:
  t5620: test backfill's unknown argument handling
  path-walk: support wildcard pathspecs for blob filtering
  backfill: work with prefix pathspecs
  backfill: accept revision arguments
  t5620: prepare branched repo for revision tests
  revision: include object-name.h
2026-04-03 13:01:08 -07:00