Commit Graph

81748 Commits (afa4ea56fedc3ca04d3b00a3ef930833e7ad68ea)

Author SHA1 Message Date
Usman Akinyemi 6ab1b3b74d remote: fix sign-compare warnings in push_cas_option
Replace `int` with `size_t` for `nr` and `alloc` in
`struct push_cas_option` to avoid -Werror=sign-compare
warnings when comparing against size-based values.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Usman Akinyemi <usmanakinyemi202@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-04 10:11:17 +09:00
Phillip Wood 8547908eb3 worktree: rename get_worktree_from_repository()
get_worktree_from_repository() returns a struct worktree that
describes the worktree that the repository argument would operate
on. Since 0f77914760 (worktree: remove "the_repository" from
is_current_worktree(), 2026-03-26) that worktree is always the
"current" worktree. Change the name to get_current_worktee() to
reflect better what the function does.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-02 07:02:45 +09:00
Matthew John Cheetham 4919938d28 doc: clarify http.emptyAuth values
The existing description of http.emptyAuth explains the purpose of the
setting but never says what values it accepts. Readers have to infer
from context (or read the source) that it takes 'true', 'false', or
'auto', and what each one means.

Document the three accepted values explicitly:

* 'auto' (the default) only sends empty credentials when the server's
  401 response advertises a mechanism that requires them, such as
  GSS-Negotiate. This matches the long-standing auto-detection
  behaviour added in 40a18fc77c (http: add an "auto" mode for
  http.emptyauth, 2017-02-25).

* 'true' unconditionally sends empty credentials on the very first
  request, before any 401 response, for callers that know they want
  this behaviour up front.

* 'false' disables the feature entirely; mechanisms that depend on
  empty credentials, such as GSS-Negotiate, will not work in this
  mode.

Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-01 14:01:57 +09:00
Johannes Schindelin 4a6ed9d09f l10n: bump mshick/add-pr-comment from v2 to v3
The l10n workflow uses `mshick/add-pr-comment` to post git-po-helper
reports as comments on translation pull requests. It was still pinned
to v2, which runs on Node.js 20. GitHub is phasing out the Node.js 20
runtime on Actions runners, so staying on v2 will eventually cause the
"Create comment in pull request for report" step to fail.

The sole breaking change in v3 is the switch from Node.js 20 to
Node.js 24 (https://github.com/mshick/add-pr-comment/releases/tag/v3.0.0).
The action's inputs and outputs are unchanged, so the upgrade is a
drop-in replacement. Subsequent v3.x releases added new opt-in
features (message truncation, retry with exponential backoff, file
attachments, commit comment support, "delete on status") but none of
them affect existing callers that do not opt in.

See also:

- Changelog: https://github.com/mshick/add-pr-comment/blob/main/CHANGELOG.md
- Compare: https://github.com/mshick/add-pr-comment/compare/v2...v3

Pointed-out-by: Christoph Grüninger <foss@grueninger.de>
Assisted-by: Claude Opus 4.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 18:21:55 +09:00
Johannes Schindelin 7e6ede6ce1 ci: bump git-for-windows/setup-git-for-windows-sdk from v1 to v2
The v1 of `git-for-windows/setup-git-for-windows-sdk` runs on
Node.js 20, which GitHub is phasing out of the Actions runners.
v2 moves the action to Node.js 24 so that the CI jobs relying on
a Git for Windows SDK keep working once Node.js 20 is removed.

The risk is very low: v2 contains no functional changes to the
SDK setup itself, only the runtime upgrade. The action still
provisions the same minimal SDK and exposes the same outputs.
The sole precondition is a recent Actions Runner (>= 2.327.1),
which the github.com-hosted runners already satisfy.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 18:21:55 +09:00
Johannes Schindelin 20cd2c96a7 ci: bump actions/checkout from v5 to v6
Every workflow currently pins `actions/checkout` to v5, which was
introduced primarily to move to the Node.js 24 runtime. v6 is the
next release and worth picking up so we stay on a maintained version
of the action.

The one behaviorally interesting change in v6:

  `persist-credentials` now stores the helper credentials under
  `$RUNNER_TEMP` instead of writing them directly into the local
  `.git/config`. Two implications follow:

  1. In the normal case this is an unambiguous improvement -- the
     token no longer lands in `.git/config`, reducing the risk of
     inadvertently leaking it through workspace archiving
     (`upload-artifact` snapshots, cache entries, core dumps, ...).

  2. Docker container actions require an Actions Runner of at least
     v2.329.0 to find the credentials in their new location. The
     github.com-hosted runners our CI uses are already past that
     version, so this does not affect us. Downstream users running
     self-hosted runners may need to update them before adopting
     this version of the action.

Risk analysis: our checkout steps either check out the default
repository (no special credential requirements) or, in the `vs-build`
job, explicitly set `repository: microsoft/vcpkg` and
`path: compat/vcbuild/vcpkg`. Neither case relies on the precise
location of the persisted credentials -- subsequent steps interact
with the API via the runner-provided `GITHUB_TOKEN` directly -- so
the v6 credential-storage change is transparent to our workflows.
The diff is purely the `@vN` identifier; there are no input or
output changes.

See also:

- Release notes: https://github.com/actions/checkout/releases
- Changelog: https://github.com/actions/checkout/blob/main/CHANGELOG.md
- Compare: https://github.com/actions/checkout/compare/v5...v6

Originally-authored-by: dependabot[bot] <support@github.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 18:21:55 +09:00
Johannes Schindelin 6e61245d0a ci: bump actions/github-script from v8 to v9
The only use we have of `actions/github-script` is the "skip if the
commit or tree was already tested" step in `main.yml`, which checks
whether an identical tree-SHA was already built successfully. It
currently pins v8; v9 is the latest release.

What v9 changes:

- The `ACTIONS_ORCHESTRATION_ID` environment variable is now
  appended to the HTTP user-agent string. This is transparent to
  our script.
- A new injected `getOctokit` factory lets scripts create
  additional authenticated clients in the same step without
  importing `@actions/github`. We do not use it.
- Two breaking changes affect scripts that either call
  `require('@actions/github')` (fails at runtime, because
  `@actions/github` v9 is now ESM-only) or that shadow the
  implicit `getOctokit` parameter via `const`/`let` (syntax
  error). Our script does neither -- it only uses the pre-supplied
  `github` REST client and `core` helpers -- so the upgrade is
  safe.

Risk analysis: the step is advisory. It sets `enabled=' but skip'`
as an optimization to avoid re-running CI on a tree that was already
tested successfully. Even if the v9 upgrade broke the script, the
surrounding `try { ... } catch (e) { core.warning(e); }` block would
degrade it to a warning and CI would still run normally. In practice
the script continues to work identically on v9.

See also:

- Release notes: https://github.com/actions/github-script/releases
- Compare: https://github.com/actions/github-script/compare/v8...v9

Originally-authored-by: dependabot[bot] <support@github.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 18:21:55 +09:00
Johannes Schindelin 3148cf56b1 ci: bump actions/{upload,download}-artifact to v7 and v8
`actions/upload-artifact` and `actions/download-artifact` are tightly
coupled: the upload action writes artifact archives in a format that
the download action then reads. Because of this coupling, the two
actions should always be bumped together so that the artifact format
contract between them is satisfied.

All of our `actions/upload-artifact` uses are still on v5, with one
stray v4 occurrence. Keeping them on these versions would leave the
artifact-upload steps running on Node.js 20, which GitHub is phasing
out, and would eventually cause all upload steps to fail.

Going from v5 directly to v7 folds in two release bumps:

- v6 switches the action's default runtime from Node.js 20 to
  Node.js 24 (v5 had preliminary Node 24 support but still defaulted
  to Node 20). This is the main motivation for bumping now: it gets
  us off the deprecated runtime.
- v7 adds two opt-in features: direct (unzipped) single-file uploads
  via a new `archive: false` parameter, and an internal conversion of
  the action to ESM to match the updated `@actions/*` packages.

Risk analysis: we never pass `archive`, so the zip-as-usual behavior
is unchanged. We also do not `require('@actions/*')` from any calling
workflow, so the ESM migration cannot affect us. The upload steps we
care about -- tracked files/build artifacts and failing-test
directories -- keep the same inputs (`name`, `path`) and outputs, so
the diff is purely the `@vN` identifier. The main precondition is a
recent Actions Runner (>= 2.327.1), which the github.com-hosted
runners used by our CI already satisfy.

While at it, align the one remaining `@v4` occurrence with the rest
so that every `upload-artifact` step uses the same version.

See also:

- Release notes: https://github.com/actions/upload-artifact/releases
- Compare: https://github.com/actions/upload-artifact/compare/v5...v7

We use `actions/download-artifact` to pass build artifacts between
the "windows-build" / "vs-build" / "windows-meson-build" jobs and
their corresponding test jobs. All callers are currently on v6;
bumping to v8 keeps this action in lockstep with the `upload-artifact`
bump above.

What v7 and v8 change:

- v7 switches the default runtime from Node.js 20 to Node.js 24 (v6
  had preliminary Node 24 support but still defaulted to Node 20).
  This is the main motivation: it gets us off the deprecated runtime.
- v8 makes three further changes:
  * The package is converted to ESM (invisible to workflow authors).
  * The action now checks the `Content-Type` header before
    attempting to unzip a download, so that directly-uploaded
    (unzipped) artifacts from `upload-artifact` v7 are downloaded
    correctly.
  * The `digest-mismatch` behaviour is changed from warn-and-
    continue to a hard failure by default.

Risk analysis: defaulting hash-mismatch to a hard failure is
strictly safer than the previous warn-and-continue behaviour -- a
mismatch points to real corruption or tampering and should stop the
run. We download archives that the same workflow just uploaded, on
the same runner fleet, so false positives are not expected. Our
usage is limited to the `name` and `path` inputs, which are
unchanged between v6 and v8, so the diff is purely the `@vN`
identifier.

See also:

- Release notes: https://github.com/actions/download-artifact/releases
- Compare: https://github.com/actions/download-artifact/compare/v6...v8

Originally-authored-by: dependabot[bot] <support@github.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 18:21:55 +09:00
Johannes Schindelin e54194d8ba ci: bump microsoft/setup-msbuild from v2 to v3
The v2 of `microsoft/setup-msbuild` runs on Node.js 20, which GitHub
is phasing out of the Actions runners. v3 is a minimal release whose
only substantive change is moving the action's runtime to Node.js 24,
so that our Visual Studio build jobs keep working once Node.js 20 is
removed from the runners.

The risk of this bump is very low: v3 contains no functional changes
to the action itself -- it merely adds `msbuild.exe` to `PATH`, with
no change to command-line flags, inputs, outputs, or default tool
resolution. The only precondition is a recent-enough Actions Runner,
which the github.com-hosted runners already satisfy.

See also:

- Release notes: https://github.com/microsoft/setup-msbuild/releases
- Compare: https://github.com/microsoft/setup-msbuild/compare/v2...v3

Originally-authored-by: dependabot[bot] <support@github.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 18:21:55 +09:00
Ezekiel Newren f87808b701 xdiff/xdl_cleanup_records: make execution of action easier to follow
Helped-by: Phillip Wood
Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 09:16:51 +09:00
Ezekiel Newren c355f69cda xdiff/xdl_cleanup_records: make setting action easier to follow
Rewrite nested ternaries with a clear if/else ladder for
action1/action2 to improve readability while preserving
behavior.

Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 09:16:50 +09:00
Ezekiel Newren f99a023df2 xdiff/xdl_cleanup_records: make limits more clear
Make the handling of per-file limits and the minimal-case clearer.
  * Use explicit per-file limit variables (mlim1, mlim2) and initialize
    them.
  * The additional condition `!need_min` is redudant now, remove it.
Best viewed with --color-words.

Helped-by: Phillip Wood
Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 09:16:50 +09:00
Ezekiel Newren 216802587e xdiff/xdl_cleanup_records: use unambiguous types
Change the parameters of xdl_clean_mmatch() and the local variables
i, nm, mlim in xdl_cleanup_records() to use unambiguous types. Best
viewed with --color-words.

Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 09:16:50 +09:00
Ezekiel Newren c37f8cda05 xdiff: use unambiguous types in xdl_bogo_sqrt()
There is no real square root for a negative number and size_t may not
be large enough for certain applications, replace long with uint64_t.

Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 09:16:50 +09:00
Ezekiel Newren b7b8449e5a xdiff/xdl_cleanup_records: delete local recs pointer
Simplify the first 2 for loops by directly indexing the xdfile.recs.
recs is unused in the last 2 for loops, remove it. Best viewed with
--color-words.

Signed-off-by: Ezekiel Newren <ezekielnewren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-30 09:16:50 +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
Scott Bauersfeld 007062ab4e index-pack, unpack-objects: increase input buffer from 4 KiB to 128 KiB
index-pack and unpack-objects both read pack data from stdin through
a 4 KiB static buffer. In index-pack, each fill() flushes consumed
bytes to the pack file via write_or_die(), capping every write(2)
at 4 KiB. unpack-objects uses the same buffer pattern for reads.

On FUSE-backed filesystems every write(2) is a synchronous round
trip through the FUSE protocol (userspace -> kernel -> userspace ->
back), so the 4 KiB buffer turns a clone into many unnecessary tiny
writes with noticeable latency overhead.

Increase the buffer from 4 KiB to 128 KiB. Introduce a shared
DEFAULT_IO_BUFFER_SIZE constant in git-compat-util.h (next to
MAX_IO_SIZE) and use it in index-pack, unpack-objects, and the
hashfile layer in csum-file (which already used 128 KiB but
hardcoded the value).

Pack file writes to a FUSE filesystem with writeback caching
disabled during HTTPS clones of git/git (~293 MB pack):

  74,958 -> 4,687 (94% fewer)

Wall-clock time of git clone over HTTPS onto a FUSE passthrough
filesystem with writeback caching disabled, 3 runs per variant:

  vscode (~1.26 GB pack): 84.5s -> 75.7s avg (10% faster)
  git/git (~306 MB pack):  22.6s -> 20.0s avg (11% faster)

Signed-off-by: Scott Bauersfeld <sbauersfeld@g.ucla.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-29 21:44:03 +09:00
Johannes Schindelin b33bea27a2 t5564: use a short path for the SOCKS proxy socket
The SOCKS proxy test introduced in 0ca365c2ed (http: do not ignore
proxy path, 2024-08-02) creates a Unix domain socket in
`$TRASH_DIRECTORY`. When the trash directory path is long (e.g.
when running from a deeply nested worktree), the socket path can
exceed the 108-character limit for `struct sockaddr_un.sun_path` on
Linux, causing the test to fail with "Path length ... is longer
than maximum supported length (108)".

We cannot work around this using the chdir trick our own socket code
employs, because both sides of the connection are outside our control:
the socket is created by socks4-proxy.pl via Perl's IO::Socket::UNIX,
and the client side is libcurl.

Use `mktemp -d` to create a unique temporary directory with a short
path, and place the socket inside it. This avoids collisions between
concurrent test runs (e.g. `--stress`) and tmpdir-race vulnerabilities
that a static `/tmp` path would be susceptible to.

Helped-by: Jeff King <peff@peff.net>
Assisted-by: Claude Opus 4.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-29 21:39:11 +09:00
Zakariyah Ali 4a9e097228 t2000: consolidate second scenario into a single test block
The second test scenario in t2000 consists of several fragmented
test_expect_success blocks that handle data setup, tree writes,
execution of git-checkout-index, and final state validation.

Consolidate these nine separate blocks into a single self-contained
test block. This follows the modern Git testing standard where setup,
execution, and validation of a single logical scenario are kept
together.

As a result of this consolidation, the show_files() helper and its
associated test_debug calls are no longer used and have been removed.
This also removes a dependency on the non-portable 'find -ls' command.

Helped-by: Karthik Nayak <karthik.188@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Zakariyah Ali <zakariyahali100@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-29 21:36:45 +09:00
brian m. carlson 7735d7eee3 commit: sign commit after mutating buffer
The ensure_utf8 function can mutate the buffer to change its encoding,
so we must call it before signing the buffer so that we do not
invalidate the signature, which is made over raw bytes.  Fix a bug which
caused the compatibility code to not convert the compatibility buffer if
the main buffer was invalid UTF-8.  We expect both buffers to be valid
UTF-8 or both invalid, since the only data that would differ between
them would be hex object IDs, which are always valid UTF-8.

Add a test for this case using 0xfe and 0xff, which are never valid in
UTF-8.

Reported-by: Kushal Das <kushal@sunet.se>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-28 09:51:11 +09:00
brian m. carlson 1ddc0481cf commit: name UTF-8 function appropriately
We have a function named verify_utf8, but it does more than verify, it
modifies the buffer if it is not UTF-8.  This is different from what
most people would expect, so call the function ensure_utf8, since it
mutates the buffer in some cases.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-28 09:51:11 +09:00
Kristoffer Haugsbakk b635fd0725 doc: log: use the same delimiter in description list
We must use the same delimiter since this is a meant to be a flat
list. Introducing a new legal delimiter like `::` makes an inner
description list:

    ...
    full
    the full ref name ...

        auto
        if the output ...

Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-28 09:46:26 +09:00
Kristoffer Haugsbakk 31d19899c7 doc: log: fix --decorate description list
026f2e3b (doc: convert git-log to new documentation format, 2025-07-07)
transformed the inline description of `--decorate` options to a
description list:

    We also transform inline descriptions of possible values of option
    --decorate into a list, which is more readable and extensible.

But a source code block was used instead of an open block.

Signed-off-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-28 09:46:26 +09:00
Patrick Steinhardt c6c2257930 builtin/history: introduce "fixup" subcommand
The newly introduced git-history(1) command provides functionality to
easily edit commit history while also rebasing dependent branches. The
functionality exposed by this command is still somewhat limited though.

One common use case when editing commit history that is not yet covered
is fixing up a specific commit. Introduce a new subcommand that allows
the user to do exactly that by performing a three-way merge into the
target's commit tree, using HEAD's tree as the merge base. The flow is
thus essentially:

    $ echo changes >file
    $ git add file
    $ git history fixup HEAD~

Like with the other commands, this will automatically rebase dependent
branches, as well. Unlike the other commands though:

  - The command does not work in a bare repository as it interacts with
    the index.

  - The command may run into merge conflicts. If so, the command will
    simply abort.

Especially the second item limits the usefulness of this command a bit.
But there are plans to introduce first-class conflicts into Git, which
will help use cases like this one.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 22:20:57 +09:00
Patrick Steinhardt 88191ea023 builtin/history: generalize function to commit trees
The function `commit_tree_with_edited_message_ext()` can be used to
commit a tree with a specific list of parents with an edited commit
message. This function is useful outside of editing the commit message
though, as it also performs the plumbing to extract the original commit
message and strip some headers from it.

Refactor the function to receive a flags field that allows the caller to
control whether or not the commit message should be edited, or whether
it should be retained as-is. This will be used in a subsequent commit.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 22:20:57 +09:00
Patrick Steinhardt 0cf4ad7cf5 replay: allow callers to control what happens with empty commits
When replaying commits it may happen that some of the commits become
empty relative to their parent. Such commits are for now automatically
dropped by the replay subsystem without much control from the user.

Introduce a new enum that allows the caller to drop, keep or abort in
this case.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 22:20:56 +09:00
Johannes Schindelin 985b38ca6c safe.bareRepository: default to "explicit" with WITH_BREAKING_CHANGES
When an attacker can convince a user to clone a crafted repository
that contains an embedded bare repository with malicious hooks, any Git
command the user runs after entering that subdirectory will discover
the bare repository and execute the hooks. The user does not even need
to run a Git command explicitly: many shell prompts run `git status`
in the background to display branch and dirty state information, and
`git status` in turn may invoke the fsmonitor hook if so configured,
making the user vulnerable the moment they `cd` into the directory. The
`safe.bareRepository` configuration variable (introduced in 8959555cee
(setup_git_directory(): add an owner check for the top-level directory,
2022-03-02)) already provides protection against this attack vector by
allowing users to set it to "explicit", but the default remained "all"
for backwards compatibility.

Since Git 3.0 is the natural point to change defaults to safer
values, flip the default from "all" to "explicit" when built with
`WITH_BREAKING_CHANGES`. This means Git will refuse to work with bare
repositories that are discovered implicitly by walking up the directory
tree. Bare repositories specified via `--git-dir` or `GIT_DIR` continue
to work, and directories that look like `.git`, worktrees, or submodule
directories are unaffected (the existing `is_implicit_bare_repo()`
whitelist handles those cases).

Users who rely on implicit bare repository discovery can restore the
previous behavior by setting `safe.bareRepository=all` in their global
or system configuration.

The test for the "safe.bareRepository in the repository" scenario
needed a more involved fix: it writes a `safe.bareRepository=all`
entry into the bare repository's own config to verify that repo-local
config does not override the protected (global) setting. Previously,
`test_config -C` was used to write that entry, but its cleanup runs `git
-C <bare-repo> config --unset`, which itself fails when the default is
"explicit" and the global config has already been cleaned up. Switching
to direct git config --file access avoids going through repository
discovery entirely.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 14:50:54 +09:00
Johannes Schindelin a09d2b27ff status tests: filter `.gitconfig` from status output
Since test-lib.sh creates `$HOME/.gitconfig` when
`WITH_BREAKING_CHANGES` is in effect, the file appears in `git
status` output as either untracked (`?? .gitconfig`) or ignored
(`!! .gitconfig` / `! .gitconfig`, depending on porcelain version),
because the `.git/info/exclude` entry causes git to treat it as an
ignored file rather than hiding it entirely.

In t7061 and t7521, which are pervasively affected, introduce a
`filter_gitconfig` helper that strips all status-prefix variants of
`.gitconfig` from the output before comparison. In the remaining
scripts (t7060, t7064, t7508), apply targeted adjustments.

Assisted-by: Claude Opus 4.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 14:50:54 +09:00
Johannes Schindelin 83228f1661 ls-files tests: filter `.gitconfig` from `--others` output
The global `safe.bareRepository=all` setting in test-lib.sh is
written to `$HOME/.gitconfig`, which unfortunately lives inside the
test repository's working tree. The `.git/info/exclude` entry added
alongside it handles most commands, but `git ls-files --others`
without `--exclude-standard` does not consult `info/exclude` at
all, so the file appears in the output.

Ideally, each test that accesses a bare repository would simply
specify `--git-dir` or `GIT_DIR` explicitly, which would require no
global config and produce no side effects in the working tree. As
that approach was not taken, filter `.gitconfig` from the output
before comparing against expected results. In t7104, the test
already uses `--exclude-standard`, so it suffices to switch from
the bare `git ls-files -o` to `git ls-files -o --exclude-standard`
which respects the `info/exclude` entry; the other tests
deliberately omit `--exclude-standard` because their purpose is to
verify unfiltered `--others` output.

Assisted-by: Claude Opus 4.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 14:50:53 +09:00
Johannes Schindelin d97f27bf01 t5601: restore `.gitconfig` after includeIf test
One test in t5601 overwrites `$HOME/.gitconfig` with an `includeIf`
configuration snippet and removes the file in its cleanup. This
destroys the `safe.bareRepository=all` entry that test-lib.sh
writes when `WITH_BREAKING_CHANGES` is in effect, causing later
tests that use `git -C <bare-repo> config` to fail with "not in a
git directory".

Back up `.gitconfig` before overwriting and restore it in the
cleanup, so the global config survives into subsequent tests.

Assisted-by: Claude Opus 4.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 14:50:53 +09:00
Johannes Schindelin 59227c0e27 t1305: use `--git-dir=.` for bare repo in include cycle test
Earlier tests in t1305 overwrite `$HOME/.gitconfig` with their own
content as part of testing config includes. This clobbers the
`safe.bareRepository=all` entry that test-lib.sh writes when
`WITH_BREAKING_CHANGES` is in effect, causing `git -C cycle config`
to fail with "not in a git directory" when it tries to access the
bare repository created by `git init --bare cycle`.

Use `--git-dir=.` to access the bare repo explicitly, avoiding the
dependency on global config for repository discovery.

Assisted-by: Claude Opus 4.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 14:50:53 +09:00
Johannes Schindelin 5fe676f448 t1300: remove global config settings injected by test-lib.sh
Since test-lib.sh now writes `safe.bareRepository=all` to the global
config when `WITH_BREAKING_CHANGES` is in effect, that entry shows
up in `git config --list` output. Tests in t1300 that expect exact
config contents then fail because of this unexpected extra line.

Unlike the working-tree contamination fixed in the preceding
commits, this is not about the file's existence but about its
content leaking into test expectations. Since t1300 does not use
bare repositories, simply remove the injected setting in a
preparatory step.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Assisted-by: Claude Opus 4.6
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 14:50:53 +09:00
Johannes Schindelin a27fec3e7e t7900: do not let `$HOME/.gitconfig` interfere with XDG tests
The XDG config tests for `git maintenance register/unregister`
create a fresh `$XDG_CONFIG_HOME/git/config` and expect git to use
that location. However, if `$HOME/.gitconfig` exists (which may
happen when test-lib.sh writes global config, e.g. to set
`safe.bareRepository`), git prefers `$HOME/.gitconfig` over the XDG
location, and the `maintenance.repo` entry ends up in the wrong
file.

This is an inherent consequence of setting global config in
test-lib.sh rather than adjusting individual tests: writing any
entry to `$HOME/.gitconfig` has side effects beyond the intended
setting, because the mere existence of that file changes which
global config location git prefers for all subsequent writes.
Individual per-test adjustments would not have this interaction.

Fix this by overriding `HOME` to a non-existent directory inside the
subshells that test XDG behavior. Since these subshells already
override `XDG_CONFIG_HOME`, they do not need `$HOME/.gitconfig` at
all, and the subshell scoping ensures the original `HOME` is
restored automatically.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 14:50:53 +09:00
Johannes Schindelin 8e61175e81 test-lib: allow bare repository access when breaking changes are enabled
A future patch will change the `safe.bareRepository` default from
`all` to `explicit` under `WITH_BREAKING_CHANGES`. At that point,
every test that operates on a bare repository through implicit
discovery would fail, regardless of whether the test is actually
about discovery or about how a specific command behaves once inside
a bare repository.

The maintainer suggested [1] setting `safe.bareRepository=all` in
the test environment's global config whenever `WITH_BREAKING_CHANGES`
is in effect, rather than adjusting each affected test to access
bare repositories explicitly (via `--git-dir`, `GIT_DIR`, or
similar). This means the test suite continues to exercise only the
historical default behavior even after the user-facing default
changes, relying on a small number of dedicated tests in t0035 to
validate the new, stricter default.

Since `$HOME` points at the trash directory (which doubles as the
test repository's working tree), writing to `$HOME/.gitconfig` also
creates a file inside the working tree. Exclude it via
`.git/info/exclude` to limit the fallout, though this does not
help tests that use `git ls-files --others` without
`--exclude-standard` or `git status --ignored`; those are addressed
by subsequent commits.

The `.git/info/exclude` write is guarded by `test -d .git/info`
rather than using `mkdir -p`, because some tests (e.g. t0008)
expect to create `.git/info/` themselves and would fail with
Patrick Steinhardt's `set -e` preparation (ps/test-set-e-clean) if
the directory already existed. For tests using `TEST_NO_CREATE_REPO`
(where no `.git/` exists at all), the guard also handles that case.

[1] https://lore.kernel.org/git/xmqqse98cc51.fsf@gitster.g/

Original-patch-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-27 14:50:53 +09:00
Matteo Beniamino fabae2b99a l10n: it: fix italian usage messages alignment
Fixed a misalignment in the "usage:" and "   or:" lines in the italian
help messages.

Signed-off-by: Matteo Beniamino <beniamino@beniamino.eu>
2026-04-26 08:32:34 +02:00
René Scharfe 9ff4b5ab1b grep: fix --column --only-match for 2nd and later matches
"git grep --column --only-match" shows the 1-based column number of the
first match on each line, but confusing numbers for further matches.
Example:

   $ echo 123456789012345678901234567890 >file
   $ for d in 1 2 3 4 5 6 7 8 9 0
     do
       git grep --no-index --column --only-matching $d file |
       awk -v FS=: -v l=$d: '{l = l sprintf("%3s", $2)} END {print l}'
     done
   1:  1  2 12
   2:  2  4 14
   3:  3  6 16
   4:  4  8 18
   5:  5 10 20
   6:  6 12 22
   7:  7 14 24
   8:  8 16 26
   9:  9 18 28
   0: 10 20 30

Report the column number of each match instead:

   $ for d in 1 2 3 4 5 6 7 8 9 0
     do
       ./git grep --no-index --column --only-matching $d file |
       awk -v FS=: -v l=$d: '{l = l sprintf("%3s", $2)} END {print l}'
     done
   1:  1 11 21
   2:  2 12 22
   3:  3 13 23
   4:  4 14 24
   5:  5 15 25
   6:  6 16 26
   7:  7 17 27
   8:  8 18 28
   9:  9 19 29
   0: 10 20 30

We need to adjust the test in t7810 as well.  The file it uses has the
following five lines; I add a line highlighting the matches and a ruler
at the bottom here, to make it easier to see that the second "mmap"
indeed starts at column 14:

foo mmap bar
foo_mmap bar
foo_mmap bar mmap
foo mmap bar_mmap
foo_mmap bar mmap baz
    ====     ====
123456789 123456789 1

Reported-by: Brandon Chinn <brandonchinn178@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-25 19:23:23 +09:00
Jonatan Holmgren 21186cf9bb alias: restore support for simple dotted aliases
Historically, config entries like alias.foo.bar expanded the alias
"foo.bar". The subsection-based alias syntax introduced in
ac1f12a9de (alias: support non-alphanumeric names via subsection
syntax, 2026-02-18) broke that behavior by treating such entries as
if they were subsection syntax.

Restore support for the old dotted form by falling back to the full
name when the final key is not "command". Add tests covering execution
and help output for simple dotted aliases.

Reported-by: Michael Grossfeld <michael.grossfeld@amd.com>
Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Jonatan Holmgren <jonatan@jontes.page>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-25 19:22:52 +09:00
Jeff King 8b44deebaf Revert "transport-helper, connect: use clean_on_exit to reap children on abnormal exit"
This reverts commit dd3693eb08.

The goal of that commit was to avoid zombie child processes hanging
around when the parent git process is killed. But it doesn't quite work
when the child command is run by the shell:

  1. If there is a shell, then we kill and wait for the shell, not the
     process spawned by the shell. And so the child process, even if it
     eventually exits, will hang around as a zombie forever. And this is
     true of most (all?) shells: bash, dash, etc.

     So we are not really accomplishing our goal in the first place.

  2. Not all shells will exit immediately upon receiving a signal. In
     particular, mksh will wait for its children to exit (but not
     actually propagate the signal to them!) leaving us with a potential
     deadlock: git is wait()ing on mksh, which is wait()ing on a child
     process, but that child process is waiting on git to produce more
     input (or EOF) over a pipe.

     You can see several examples of this deadlock in the test suite,
     for example by running:

       make SHELL_PATH=/bin/mksh
       cd t
       ./t5702-protocol-v2.sh

Because this is a regression for mksh users, and because we did not
achieve our goal even with other shells, let's revert the commit for
now. If there is a more clever way of doing the same thing, we can
consider applying it separately on top (or do nothing and just accept
the zombies and rely on PID 1 to reap them).

Reported-by: Jan Palus <jpalus@fastmail.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-22 16:31:41 -07:00
SZEDER Gábor 890229b3f3 t6112: avoid tilde expansion
e987df5fe6 (list-objects-filter: implement composite filters,
2019-06-27) introduced a test to "t6112-rev-list-filters-objects.sh"
that checks the output of a Git command with the following commands:

  grep ~$omitted_1 actual &&
  grep ~$omitted_2 actual &&
  grep ~$omitted_3 actual &&

Since the leading tilde in the pattern is not quoted/escaped, it is
subject to tilde expansion.  So if the system has a user whose
username happens to be "$omitted_1", then "grep" would look for that
user's home directory.

Quote those words starting with a tilde to avoid this.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-22 16:25:23 -07:00
Elijah Newren b2eec6663f merge-ort: handle cached rename & trivial resolution interaction better
Back in commit a562d90a35 (merge-ort: fix failing merges in special
corner case, 2025-11-03), we hit a rename assertion due to a trivial
directory resolution affecting the parent of a cached rename.  Since
the path didn't need to be considered, we side-stepped it with

   if (!newinfo)
     continue;

in process_renames().  We have since run into a case in production
where a trivial resolution of a file affects the direct target of a
cached rename rather than a parent directory of it.  Add a testcase
demonstrating this additional case.

Now, if we were to follow the lead of commit a562d90a35, we could
resolve this alternate case with an extra condition on the above if:

   if (!newinfo || newinfo->merged.clean)
     continue;

However, if we had done that earlier, we would have made 979ee83e8a
(merge-ort: fix corner case recursive submodule/directory conflict
handling, 2025-12-29) harder to find and fix, and this particular
position for this condition isn't actually at the root of the issue
but downstream from it.

Instead, let's rip out this if-check from a562d90a35 and put in an
alternative that more directly addresses trivially resolved paths that
happen to be cached renames or parent directories thereof, which is a
better fix for the original testcase and which also solves the newly
added testcase as well.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-22 16:21:05 -07:00
Mirko Faina 7584d10bc2 Fix docs for format.commitListFormat
When renaming the option --cover-letter-format to --commit-list-format
we forgot to rename the opton in the section too. Fix it.

Signed-off-by: Mirko Faina <mroik@delayed.space>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-22 16:16:24 -07:00
Patrick Steinhardt ffe8005b9d t: detect errors outside of test cases
We have recently merged a patch series that had a simple misspelling of
`test_expect_success`. Instead of making our tests fail though, this
typo went completely undetected and all of our tests passed, which is of
course unfortunate. This is a more general issue with our test suite:
all commands that run outside of a specific test case can fail, and if
we don't explicitly check for such failure then this failure will be
silently ignored.

Improve the status quo by enabling the errexit option so that any such
unchecked failures will cause us to abort immediately.

Note that for now, we only enable this option for Bash 5 and newer. This
is because other shells have wildly different behaviour, and older
versions of Bash (especially on macOS) are buggy. The list of enabled
shells may be extended going forward.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-22 15:53:36 -07:00
Patrick Steinhardt 1ecf653826 t9902: fix use of `read` with `set -e`
In t9902 we're using the `read` builtin to read some values into a
variable. This is done by using `-d ""`, which cause us to read until
the end of the heredoc. As the read is terminated by EOF, the command
will end up returning a non-zero error code. This hasn't been an issue
until now as we didn't run with `set -e`, but that'll change in a
subsequent commit.

Prepare for this change by not using read at all, as we can simply store
the multi-line value directly.

Suggested-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-22 15:53:36 -07:00
Patrick Steinhardt 090af9957c t6002: fix use of `expr` with `set -e`
In `test_bisection_diff ()` we use `expr` to perform some math. This
command has some gotchas though in that it will only return success when
the result is neither null nor zero. In some of our cases though it
actually _is_ zero, and that will cause the expressions to fail once we
enable `set -e`.

Prepare for this change by instead using `$(( ))`, which doesn't have
the same issue. While at it, modernize the function a tiny bit.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-22 15:53:36 -07:00
Patrick Steinhardt 4f917bbf71 t1301: don't fail in case setfacl(1) doesn't exist or fails
In t1301 we're trying to remove any potentially-existing default ACLs
that might exist on the transh directory by executing setfacl(1).
According to 8ed0a740dd (t1301-shared-repo.sh: don't let a default ACL
interfere with the test, 2008-10-16), this is done because we play
around with permissions and umasks in this test suite.

The setfacl(1) binary may not exist on some systems though, even though
tests ultimately still pass. This doesn't matter currently, but will
cause the test to fail once we start running with `set -e`. Silence such
failures by ignoring failures here.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-22 15:53:36 -07:00
Patrick Steinhardt b94900a0cf t0008: silence error in subshell when using `grep -v`
In t0008 we use `grep -v` in a subshell, but expect that this command
will sometimes not match anything. This would cause grep(1) to return an
error code, but given that we don't run with `set -e` we swallow this
error.

We're about to enable `set -e`. Prepare for this by ignoring any errors.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-22 15:53:36 -07:00