Commit Graph

23729 Commits

Author SHA1 Message Date
Junio C Hamano
a5cc6a2bc5 Merge branch 'jc/you-still-use-whatchanged'
"git whatchanged" that is longer to type than "git log --raw"
which is its modern rough equivalent has outlived its usefulness
more than 10 years ago.  Plan to deprecate and remove it.

* jc/you-still-use-whatchanged:
  whatschanged: list it in BreakingChanges document
  whatchanged: remove when built with WITH_BREAKING_CHANGES
  whatchanged: require --i-still-use-this
  tests: prepare for a world without whatchanged
  doc: prepare for a world without whatchanged
  you-still-use-that??: help deprecating commands for removal
2025-06-25 14:07:35 -07:00
Junio C Hamano
da59201dfc Merge branch 'rm/t2400-modernize'
Test clean-up.

* rm/t2400-modernize:
  t2400: replace 'test -[efd]' with 'test_path_is_*'
2025-06-24 09:48:52 -07:00
Junio C Hamano
1e60e1d6d8 Merge branch 'sa/multi-mailmap-fix'
When asking to apply mailmap to both author and committer field
while showing a commit object, the field that appears later was not
correctly parsed and replaced, which has been corrected.

* sa/multi-mailmap-fix:
  cat-file: fix mailmap application for different author and committer
2025-06-24 09:48:51 -07:00
Junio C Hamano
f6e507f7cb Merge branch 'ly/prepare-show-merge-leakfix'
Leakfix.

* ly/prepare-show-merge-leakfix:
  revision: fix memory leak in prepare_show_merge()
2025-06-24 09:48:49 -07:00
Junio C Hamano
77eb1dc722 Merge branch 'kj/stash-onbranch-submodule-fix'
"git stash" recorded a wrong branch name when submodules are
present in the current checkout, which has been corrected.

* kj/stash-onbranch-submodule-fix:
  stash: fix incorrect branch name in stash message
2025-06-24 09:48:48 -07:00
Junio C Hamano
d2fb103447 Merge branch 'pw/stash-p-pathspec-fixes'
"git stash -p <pathspec>" improvements.

* pw/stash-p-pathspec-fixes:
  stash: allow "git stash [<options>] --patch <pathspec>" to assume push
  stash: allow "git stash -p <pathspec>" to assume push again
2025-06-24 09:48:47 -07:00
Junio C Hamano
e363d5f226 Merge branch 'rj/meson-tap-parse-fixup'
An earlier test update incorrectly lost three prerequisites on
macOS, which has been corrected.

* rj/meson-tap-parse-fixup:
  test-lib: add missing prerequisites for Darwin
2025-06-18 13:53:36 -07:00
Junio C Hamano
f1af195690 Merge branch 'ly/pack-bitmap-root-leakfix'
Memleak fix on an error code path.

* ly/pack-bitmap-root-leakfix:
  pack-bitmap: remove checks before bitmap_free
2025-06-18 13:53:34 -07:00
Junio C Hamano
b1dc2e796e Merge branch 'ps/meson-tap-parse'
Meson-based build/test framework now understands TAP output
generated by our tests.

* ps/meson-tap-parse:
  meson: parse TAP output generated by our tests
  meson: introduce kwargs variable for tests
  test-lib: fail on unexpectedly passing tests
  t7815: fix unexpectedly passing test on macOS
  t/test-lib: fix TAP format for BASH_XTRACEFD warning
  t/test-lib: don't print shell traces to stdout
  t983*: use prereq to check for Python-specific git-p4(1) support
  t9822: use prereq to check for ISO-8859-1 support
  t: silence output from `test_create_repo()`
  t: stop announcing prereqs
2025-06-17 10:44:42 -07:00
Junio C Hamano
2024ab3d97 Merge branch 'jk/diff-no-index-with-pathspec'
"git diff --no-index dirA dirB" can limit the comparison with
pathspec at the end of the command line, just like normal "git
diff".

* jk/diff-no-index-with-pathspec:
  diff --no-index: support limiting by pathspec
  pathspec: add flag to indicate operation without repository
  pathspec: add match_leading_pathspec variant
2025-06-17 10:44:42 -07:00
Junio C Hamano
4fd5b1ddc7 Merge branch 'vd/cat-file-objectmode-update'
"git cat-file --batch" learns to understand %(objectmode) atom to
allow the caller to tell missing objects (due to repository
corruption) and submodules (whose commit objects are OK to be
missing) apart.

* vd/cat-file-objectmode-update:
  cat-file.c: add batch handling for submodules
  cat-file: add %(objectmode) atom
  t1006: update 'run_tests' to test generic object specifiers
2025-06-17 10:44:39 -07:00
Junio C Hamano
01148cafa4 Merge branch 'rc/userdiff-r'
Userdiff patterns for the R language.

* rc/userdiff-r:
  userdiff: add support for R programming language
2025-06-17 10:44:39 -07:00
Junio C Hamano
88134a8417 Merge branch 'ds/path-walk-2'
"git pack-objects" learns to find delta bases from blobs at the
same path, using the --path-walk API.

* ds/path-walk-2:
  pack-objects: allow --shallow and --path-walk
  path-walk: add new 'edge_aggressive' option
  pack-objects: thread the path-based compression
  pack-objects: refactor path-walk delta phase
  scalar: enable path-walk during push via config
  pack-objects: enable --path-walk via config
  repack: add --path-walk option
  t5538: add tests to confirm deltas in shallow pushes
  pack-objects: introduce GIT_TEST_PACK_PATH_WALK
  p5313: add performance tests for --path-walk
  pack-objects: update usage to match docs
  pack-objects: add --path-walk option
  pack-objects: extract should_attempt_deltas()
2025-06-17 10:44:38 -07:00
Rodrigo Michelassi
855cfc65ae t2400: replace 'test -[efd]' with 'test_path_is_*'
'test_path_is_file', 'test_path_is_dir' and 'test_file_is_missing'
are test helpers used in Git's development, that emit useful
diagnostic information when they detect a failing condition, while
test -[efd] does not.

Replace the basic shell commands 'test -f', 'test -d' and 'test -e',
with these test helpers.

Co-authored-by: Isabella Caselli <icaselli@usp.br>
Signed-off-by: Isabella Caselli <icaselli@usp.br>
Signed-off-by: Rodrigo Michelassi <rodmichelassi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-16 21:49:05 -07:00
Siddharth Asthana
abf94a283f cat-file: fix mailmap application for different author and committer
The git cat-file command with --mailmap option fails to apply mailmap
transformations to the committer field when the author and committer
identities are different. This occurs due to a missing newline handling
in apply_mailmap_to_header() after processing each identity line.

When rewrite_ident_line() processes an identity, it stops at the end
of the identity data (e.g., "Author Name <email> timestamp"), but
doesn't account for the trailing newline. The current code adds the
identity length to buf_offset but fails to advance past the newline
character. This causes the next iteration to start parsing from the
newline instead of the beginning of the next header line, making it
impossible to match subsequent headers like "committer".

Additionally, rewrite_ident_line() may reallocate the buffer during
its operation. Any code using pointers into the old buffer would be
using invalid memory after such a reallocation.

This bug was introduced in e9c1b0e3 (revision: improve
commit_rewrite_person(), 2022-07-19) when the much simpler version of
commit_rewrite_person() that worked on one "person header" at a time
was rewritten to use the current apply_mailmap_to_header() function.
The original implementation processed author and committer separately,
but the rewrite introduced this loop-based approach that failed to
properly handle the transition between identity lines.

Let's fix this by addressing both issues:
1. After processing an identity line, we now check if we're at a
   newline and advance past it, ensuring the next header line is
   parsed correctly.
2. We recompute the buffer position after rewrite_ident_line() to
   handle potential buffer reallocation.

This ensures that all identity headers in commit and tag objects are
consistently processed regardless of whether the author and committer
are the same person.

Reported-by: Vasilii Iakliushin <viakliushin@gitlab.com>
Reviewed-by: Christian Couder <christian.couder@gmail.com>
Signed-off-by: Siddharth Asthana <siddharthasthana31@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-13 08:54:51 -07:00
K Jayatheerth
ffb36c64f2 stash: fix incorrect branch name in stash message
When creating a stash, Git uses the current branch name
of the superproject to construct the stash commit message.
However, in repositories with submodules,
the message may mistakenly display the submodule branch name instead.

This is because `refs_resolve_ref_unsafe()` returns a pointer to a static buffer.
Subsequent calls to the same function overwrite the buffer,
corrupting the originally fetched `branch_name` used for the stash message.

Use `xstrdup()` to duplicate the branch name immediately after resolving it,
so that later buffer overwrites do not affect the stash message.

Signed-off-by: K Jayatheerth <jayatheerthkulkarni2005@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-11 08:59:32 -07:00
Lidong Yan
a3d278bb64 revision: fix memory leak in prepare_show_merge()
In revision.c:prepare_show_merge(), we allocated an array in prune
but forget to free it. Since parse_pathspec is not responsible to
free prune, we should add `free(prune)` in the end of prepare_show_merge().

Signed-off-by: Lidong Yan <502024330056@smail.nju.edu.cn>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-09 20:41:17 -07:00
Ramsay Jones
2f71f61045 test-lib: add missing prerequisites for Darwin
commit d3d8c601fd ("t7815: fix unexpectedly passing test on macOS",
2025-06-02) added a MACOS prerequisite by adding a 'Darwin' case
label to the 'OS-specific' case statement. However, this commit
forgot to set several prerequisites which appear in the 'default'
case label, in addition to the new MACOS prerequisite. This causes
several tests, which macOS should pass, being skipped.

In order to run all applicable tests on macOS, add the missing
prerequisites to the 'Darwin' case.

Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-09 11:25:37 -07:00
Lidong Yan
81cd1eef7d pack-bitmap: remove checks before bitmap_free
In pack-bitmap.c:find_boundary_objects(), the roots_bitmap is only freed
if cascade_pseudo_merges_1() fails. However, cascade_pseudo_merges_1()
uses roots_bitmap as a mutable reference without taking ownership of it.
As a result, if cascade_pseudo_merges_1() succeeds, roots_bitmap is leaked.
And this leak currently lacks a dedicated test to detect it.

To fix this leak, remove if cascade_pseudo_merges_1() succeed check and
always calling bitmap_free(roots_bitmap);

To trigger this leak, we need roots_bitmap that contains at least one
pseudo merge. So that we can use pseudo merge bitmap when we compute roots
reachable bitmap. Here we create two commits: first A then B. Add A
to the pseudo-merge and perform a traversal over the range A..B.
In this scenario, the "haves" set will be {A}, and cascade_pseudo_merges_1
will succeed, thereby exposing the leak due to the missing roots_bitmap
cleanup.

Signed-off-by: Lidong Yan <502024330056@smail.nju.edu.cn>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-09 09:04:47 -07:00
Junio C Hamano
427b538fc3 Merge branch 'mm/test-in-absolute-home'
Tests that compare $HOME and $(pwd), which should be the same
directory unless the tests chdir's around, would fail when the user
enters the test directory via symbolic links, which has been
corrected.

* mm/test-in-absolute-home:
  t: run tests from a normalized working directory
2025-06-09 07:15:51 -07:00
Phillip Wood
468817bab2 stash: allow "git stash [<options>] --patch <pathspec>" to assume push
The support for assuming "push" when "-p" is given introduced in
9e140909f6 (stash: allow pathspecs in the no verb form, 2017-02-28) is
very narrow, neither "git stash -m <message> -p <pathspec>" nor "git
stash --patch <pathspec>" imply "push" and die instead. Relax this by
passing PARSE_OPT_STOP_AT_NON_OPTION when push is being assumed and then
setting "force_assume" if "--patch" was present. This means "git stash
<pathspec> -p" still dies so that it does not assume the user meant
"push" if they mistype a subcommand name but "git stash -m <message> -p
<pathspec>" will now succeed. The test added in the last commit is
adjusted to check that push is still assumed when "--patch" comes after
other options on the command-line.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-07 10:37:17 -07:00
Phillip Wood
e6659b77df stash: allow "git stash -p <pathspec>" to assume push again
Historically "git stash [<options>]" was assumed to mean "git stash save
[<options>]". Since 1ada5020b3 (stash: use stash_push for no verb form,
2017-02-28) it is assumed to mean "git stash push [<options>]". As the
push subcommand supports pathspecs, 9e140909f6 (stash: allow pathspecs
in the no verb form, 2017-02-28) allowed "git stash -p <pathspec>" to
mean "git stash push -p <pathspec>". This was broken in 8c3713cede
(stash: eliminate crude option parsing, 2020-02-17) which failed to
account for "push" being added to the start of argv in cmd_stash()
before it calls push_stash() and kept looking in argv[0] for "-p" after
moving the code to push_stash().

Fix this by regression by checking argv[1] instead of argv[0] and add a
couple of tests to prevent future regressions.

Helped-by: Martin Ågren <martin.agren@gmail.com>
Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-07 10:37:16 -07:00
Junio C Hamano
14de3eb344 Merge branch 'js/t5410-tee-hang-workaround'
* js/t5410-tee-hang-workaround:
  t5410: avoid hangs in CI runs in the win+Meson test jobs
2025-06-05 11:56:29 -07:00
Johannes Schindelin
52a86dd26d t5410: avoid hangs in CI runs in the win+Meson test jobs
In the GitHub workflow used in Git's CI builds, the `vs test` jobs use a
subset of a specific revision of Git for Windows' SDK to run Git's test
suite. This revision is validated by another CI workflow to ensure that
said revision _can_ run Git's test suite successfully, skipping buggy
updates in Git for Windows' SDK.

The `win+Meson test` jobs do things differently, quite differently. They
use the Bash of the Git for Windows version that is installed on the
runners to run Git's test suite.

This difference has consequences.

When 68cb0b5253 (builtin/receive-pack: add option to skip connectivity
check, 2025-05-20) introduced a test case that uses `tee <file> | git
receive-pack` as `--receive-pack` parameter (imitating an existing
pattern in the same test script), it hit just the sweet spot to trigger
a bug in the MSYS2 runtime shipped in Git for Windows v2.49.0. This
version is the one currently installed on GitHub's runners.

The problem is that the `git receive-pack` process finishes while the
`tee` process does not need to write anything anymore and therefore does
not receive an EOF. Instead, it should receive a SIGPIPE, but the bug in
the MSYS2 runtime prevents that from working as intended. As a
consequence, the `tee` process waits for more input from the `git.exe
send-pack` process but none is coming, and the test script patiently
waits until the 6h timeout hits.

Only every once in a while, the `git receive-pack` process manages to
send an EOF to the `tee` process and no hang occurs. Therefore, the
problem can be worked around by cancelling the clearly-hanging job after
twenty or so minutes and re-running it, repeating the process about half
a dozen times, until the hang was successfully avoided.

This bug in the MSYS2 runtime has been fixed in the meantime, which is
the reason why the same test case causes no problems in the `win test`
and the `vs test` jobs.

This will continue to be the case until the Git for Windows version on
the GitHub runners is upgraded to a version that distributes a newer
MSYS2 runtime version. However, as of time of writing, this _is_ the
latest Git for Windows version, and will be for another 1.5 weeks, until
Git v2.50.0 is scheduled to appear (and shortly thereafter Git for
Windows v2.50.0). Traditionally it takes a while before the runners pick
up the new version.

We could just wait it out, six hours at a time.

Here, I opt for an alternative: Detect the buggy MSYS2 runtime and
simply skip the test case. It's not like the `receive-pack` test cases
are specific to Windows, and even then, to my chagrin the CI runs in
git-for-windows/git spend around ten hours of compute time each and
every time to run the entire test suite on all the platforms, even the
tests that cover cross-platform code, and for Windows alone we do that
three times: with GCC, with MSVC, and with MSVC via Meson. Therefore, I
deem it more than acceptable to skip this test case in one of those
matrices.

For good luck, also the preceding test case is skipped in that scenario,
as it uses the same `--receive-pack=tee <file> | git receive-pack`
pattern, even though I never observed that test case to hang in
practice.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-05 09:45:42 -07:00
Victoria Dye
b0b910e052 cat-file.c: add batch handling for submodules
When an object specification is passed to 'cat-file --batch[-check]'
referring to a submodule (e.g. 'HEAD:path/to/my/submodule'), the current
behavior of the command is to print the "missing" error message. However, it
is often valuable for callers to distinguish between paths that are actually
missing and "the submodule tree entry exists, but the object does not exist
in the repository".

To disambiguate without needing to invoke a separate Git process (e.g.
'ls-tree'), print the message "<oid> submodule" for such objects instead of
"<object> missing". In addition to the change from "missing" to "submodule",
the new message differs from the old in that it always prints the resolved
tree entry's OID, rather than the input object specification.

Note that this implementation maintains a distinction between submodules
where the commit OID is not present in the repo, and submodules where the
commit OID *is* present; the former will now print "<object> submodule", but
the latter will still print the full object content.

Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-03 12:08:58 -07:00
Victoria Dye
aba1438435 cat-file: add %(objectmode) atom
Add a formatting atom, used with the --batch-check/--batch-command options,
that prints the octal representation of the object mode if a given revision
includes that information, e.g. one that follows the format
<tree-ish>:<path>. If the mode information does not exist, an empty string
is printed instead.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-03 12:08:58 -07:00
Victoria Dye
9fd38038b9 t1006: update 'run_tests' to test generic object specifiers
Update the 'run_tests' test wrapper so that the first argument may refer to
any specifier that uniquely identifies an object (e.g. a ref name,
'<OID>:<path>', '<OID>^{<type>}', etc.), rather than only a full object ID.

Also add tests that use non-OID identifiers, ensuring appropriate parsing in
'cat-file'. The identifiers used in some of the added tests include a space,
which is incompatible with the '%(rest)' atom. To accommodate that without
removing the test case, use 'test_expect_failure' when 'object_name'
includes a space.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-03 12:08:58 -07:00
Junio C Hamano
c38b74f286 Merge branch 'sj/ref-contents-check-fix'
"git verify-refs" (and hence "git fsck --reference") started
erroring out in a repository in which secondary worktrees were
prepared with Git 2.43 or lower.

* sj/ref-contents-check-fix:
  fsck: ignore missing "refs" directory for linked worktrees
2025-06-03 08:55:23 -07:00
shejialuo
d5b3c38b8a fsck: ignore missing "refs" directory for linked worktrees
"git refs verify" doesn't work if there are worktrees created on Git
v2.43.0 or older versions. These versions don't automatically create the
"refs" directory, causing the error:

    error: cannot open directory .git/worktrees/<worktree name>/refs:
    No such file or directory

Since 8f4c00de95 (builtin/worktree: create refdb via ref backend,
2024-01-08), we automatically create the "refs" directory for new
worktrees. And in 7c78d819e6 (ref: support multiple worktrees check for
refs, 2024-11-20), we assume that all linked worktrees have this
directory and would wrongly report an error to the user, thus
introducing compatibility issue.

Check for ENOENT errno before reporting directory access errors for
linked worktrees to maintain backward compatibility.

Reported-by: Kristoffer Haugsbakk <code@khaugsbakk.name>
Signed-off-by: shejialuo <shejialuo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 11:20:19 -07:00
Junio C Hamano
bbe8a3723b Merge branch 'jc/signed-fast-export-is-experimental'
Mark a new feature added during this cycle as experimental and fix
its default so that existing users of the fast-export command is
not broken.

* jc/signed-fast-export-is-experimental:
  fast-export: --signed-commits is experimental
2025-06-02 09:25:34 -07:00
Patrick Steinhardt
b44e63f405 meson: introduce kwargs variable for tests
Meson has the ability to create a kwargs dictionary that can then be
passed to any function call with the `kwargs:` positional argument. This
allows one to deduplicate common parameters that one wishes to pass to
several different function invocations.

Our tests already have one common parameter that we use everywhere,
"timeout", and we're about to add a second common parameter in the next
commit. Let's prepare for this by introducing `test_kwargs` so that we
can deduplicate these common arguments.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 07:51:43 -07:00
Patrick Steinhardt
5e0752b071 test-lib: fail on unexpectedly passing tests
When tests are executed via `test_expect_failure` we rather obviously
expect the test itself to fail. If it unexpectedly does not fail then we
count the test as a "fixed" test and announce that a known breakage has
vanished:

    ok 1 - setup
    ok 2 - create refs/heads/main # TODO known breakage vanished
    ok 3 - create refs/heads/main with oldvalue verification
    ...
    ok 299 - update-ref should also create reflog for HEAD
    # 1 known breakage(s) vanished; please update test(s)
    # passed all remaining 298 test(s)
    1..299

While we announce that tests should be updated, the overall test suite
still passes. This makes it quite hard to detect when a test that has
previously failed succeeds now as the developer needs to pay close
attention to the exact output. Even more importantly, tests that only
succeed on _some_ systems are even easier to miss now, as one would have
to explicitly take a look at respective CI jobs to notice that those do
pass now.

Furthermore, we are about to introduce support for parsing TAP output in
Meson. In contrast to prove(1), which treats unexpected passes as a
successful test run, Meson treats those as failure. Neither of these
tools is wrong in doing so. Quoting the TAP specification [1]:

    Should a todo test point begin succeeding, the harness may report it
    in some way that indicates that whatever was supposed to be done has
    been, and it should be promoted to a normal Test Point.

So it is essentially implementation-defined how exactly the unexpected
pass is reported, and whether it should cause the overall test suite to
fail or not. It is unarguably a bad thing for us though if these tools
interpret these differently, as it would mean that test results now
depend on whether the developer uses prove(1) or Meson.

Unify the behaviour by causing a test suite to fail when there are any
unexpected passes. As prove(1) does not consider an unexpected pass to
be an error this leads to somewhat funky output:

    t1400-update-ref.sh ................................ Dubious, test returned 1 (wstat 256, 0x100)
    All 299 subtests passed
            (1 TODO test unexpectedly succeeded)

    ...

    Test Summary Report
    -------------------
    t1400-update-ref.sh                              (Wstat: 256 (exited 1) Tests: 299 Failed: 0)
      TODO passed:   2
      Non-zero exit status: 1

But as we directly announce that the root cause is an unexpected TODO
that has succeeded it's not all that bad.

[1]: https://testanything.org/tap-version-14-specification.html

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 07:51:43 -07:00
Patrick Steinhardt
d3d8c601fd t7815: fix unexpectedly passing test on macOS
In t7815, we have the following test:

    test_expect_failure !CYGWIN 'git grep .fi a' '
        git grep .fi a
    '

The test passes if '.' matches a NUL byte, which we expect to only
happen on Cygwin. The upcoming changes to support parsing TAP output in
Meson surface that this test, surprisingly, passes on macOS as well.

It is unclear how long the test has been passing on macOS already.
064eed36c7 (config.mak.uname: only set NO_REGEX on cygwin for v1.7,
2025-04-17) mentions that the test started to pass for Cygwin. This was
attributed to a new implementation of regcomp(3p) and friends, which was
inherited from FreeBSD. Given the BSD lineage of macOS it is feasible
that it also inherited similar code eventually that made the test pass
now.

It is somewhat dubious what the test actually brings to the table given
that it is quite platform specific. Ideally, we would fix this mess by
having a configure-time check whether regcomp(3p) works as expected,
including NUL bytes, and use our bundled version of the regex library in
case it doesn't. Like this, we could ensure that all platforms work the
same in this edge case and mark the new behaviour as expected.

This change is outside of the scope of this patch series, which only
introduces support for TAP. So instead of fixing the bigger issue,
ignore the test on Darwin like we already do for Cygwin.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 07:51:42 -07:00
Patrick Steinhardt
d4ea24b8a9 t/test-lib: fix TAP format for BASH_XTRACEFD warning
When the Bash version is too old to support BASH_XTRACEFD we print a
warning to stderr. This warning is not prefixed with "#", which causes
TAP parsers to (wrongly) interpret the warning as part of the protocol.

Fix this issue by prefixing the warning with a "#" so that it is treated
as comment.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 07:51:42 -07:00
Patrick Steinhardt
d411d3d837 t/test-lib: don't print shell traces to stdout
We have several flags like "--verbose", "--verbose-only" or "-x" that
cause us to generate shell traces. The generated tracing output is split
up in these cases so that the test's stdout is printed to file
descriptor 3 whereas its stderr is printed to file descriptor 4.
Depending on which options have been given, we then end up either:

  - Redirecting both file descriptors to a file.

  - Redirecting them to stdout and stderr, respectively.

  - Closing them in case we're running in none-verbose mode.

The second case causes problems though when passing output to a TAP
parser. We print the test's stdout to the console's stdout, and that
results in broken TAP output.

Fix the issue by instead redirecting the test's stdout to the shell's
stderr. This makes it impossible to discern stdout from stderr, but
going by my own experience I never came across a usecase where I would
have needed this distinction.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 07:51:42 -07:00
Patrick Steinhardt
a1199a2389 t983*: use prereq to check for Python-specific git-p4(1) support
The tests in t9835 and t9836 verify that git-p4(1) works with both
Python 2 and 3, respectively. To determine whether we have those Python
versions in the first place we create a wrapper script that directly
executes the git-p4(1) script with `python2` or `python3` binaries. We
then condition the execution of tests on whether that wrapper script can
be executed successfully.

The logic that does all of this is not contained in a prerequisite block
though, so the output it generates causes us to break the TAP format.
Refactor the logic to use `test_lazy_prereq()` to fix this.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 07:51:42 -07:00
Patrick Steinhardt
844537091d t9822: use prereq to check for ISO-8859-1 support
Tests in t9822 depend on filesystem support for ISO-8859-1 encoding. We
thus have a block of code that acts as a prerequisite -- if we fail to
write a file with an ISO-8859-1-encoded file name to disk then we skip
all tests.

When the prerequisite fails though we end up printing an error message
to stderr, which breaks the TAP format. Fix this by converting the code
to a proper prerequisite, which handles output redirection for us.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 07:51:42 -07:00
Patrick Steinhardt
ddfcb9d466 t: silence output from test_create_repo()
There are a couple users of `test_create_repo()` that use this function
outside of any test case. This function is nowadays only a thin wrapper
around `git init`, which by default prints a message to stdout that the
repository has been initialized. The resulting output may thus confuse
TAP parsers.

Refactor these users to instead create the repository in a "setup" test
case so that we don't explicitly have to silence them. There's one
exception in t1007: we use `push_repo()` and its `pop_repo()` equivalent
multiple times, so to reduce the noise introduced by this patch we
instead silence this invocation.

While at it, convert callsites to use git-init(1) directly as the
`test_create_repo()` function has been deprecated in f0d4d398e2
(test-lib: split up and deprecate test_create_repo(), 2021-05-10).

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 07:51:42 -07:00
Patrick Steinhardt
faac9d46e0 t: stop announcing prereqs
We have a couple of cases where our tests end up announcing that a
certain prerequisite is or isn't fulfilled. While this is supposed to
help the developer it has the downside that it breaks the TAP format.

We could convert these cases to just have a "#" prefix, but it feels
rather unlikely that these are generally useful in the first place. We
already do announce why a specific test is being skipped, so we should
try to use this mechanism to the best extent possible.

Stop announcing these prereqs to fix the TAP format. Where possible,
convert the tests to rely on the prerequisites themselves to announce
why a test ran or didn't ran.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-02 07:51:41 -07:00
Mark Mentovai
2d207ed1ec t: run tests from a normalized working directory
Some tests make git perform actions that produce observable pathnames,
and have expectations on those paths. Tests run with $HOME set to a
$TRASH_DIRECTORY, and with their working directory the same
$TRASH_DIRECTORY, although these paths are logically identical, they do
not observe the same pathname canonicalization rules and thus might not
be represented by strings that compare equal. In particular, no pathname
normalization is applied to $TRASH_DIRECTORY or $HOME, while tests
change their working directory with `cd -P`, which normalizes the
working directory's path by fully resolving symbolic links.

t7900's macOS maintenance tests (which are not limited to running on
macOS) have an expectation on a path that `git maintenance` forms by
using abspath.c strbuf_realpath() to resolve a canonical absolute path
based on $HOME. When t7900 runs from a working directory that contains
symbolic links in its pathname, $HOME will also contain symbolic links,
which `git maintenance` resolves but the test's expectation does not,
causing a test failure.

Align $TRASH_DIRECTORY and $HOME with the normalized path as used for
the working directory by resetting them to match the working directory
after it's established by `cd -P`. With all paths in agreement and
symbolic links resolved, pathname expectations can be set and met based
on string comparison without regard to external environmental factors
such as the presence of symbolic links in a path.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Mark Mentovai <mark@chromium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-05-30 14:55:03 -07:00
Junio C Hamano
5d2812ff3c Merge branch 'mm/apply-reverse-mode-of-deleted-path'
"git apply --index/--cached" when applying a deletion patch in
reverse failed to give the mode bits of the path "removed" by the
patch to the file it creates, which has been corrected.

* mm/apply-reverse-mode-of-deleted-path:
  apply: set file mode when --reverse creates a deleted file
  t4129: test that git apply warns for unexpected mode changes
2025-05-30 11:59:17 -07:00
Rodrigo Carvalho
1d9526df8d userdiff: add support for R programming language
Add userdiff patterns to support R programming language.

Also, add three userdiff tests for R programming language
files. These files define simple function and nested function,
with and without indentation.

Signed-off-by: Rodrigo Carvalho <rodrigorsdc@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-05-29 15:29:37 -07:00
Junio C Hamano
0b4c6baa70 fast-export: --signed-commits is experimental
As the design of signature handling is still being discussed, it is
likely that the data stream produced by the code in Git 2.50 would
have to be changed in such a way that is not backward compatible.

Mark the feature as experimental and discourge its use for now.

Also flip the default on the generation side to "strip"; users of
existing versions would not have passed --signed-commits=strip and
will be broken by this change if the default is made to abort, and
will be encouraged by the error message to produce data stream with
future breakage guarantees by passing --signed-commits option.

As we tone down the default behaviour, we no longer need the
FAST_EXPORT_SIGNED_COMMITS_NOABORT environment variable, which was
not discoverable enough.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-05-28 10:30:47 -07:00
Junio C Hamano
b4847a4477 Merge branch 'jt/receive-pack-skip-connectivity-check'
"git receive-pack" optionally learns not to care about connectivity
check, which can be useful when the repository arranges to ensure
connectivity by some other means.

* jt/receive-pack-skip-connectivity-check:
  builtin/receive-pack: add option to skip connectivity check
  t5410: test receive-pack connectivity check
2025-05-28 07:59:56 -07:00
Junio C Hamano
b5afd0a7ee Merge branch 'kn/passing-leak-tests'
Remove the leftover hints to the test framework to mark tests that
do not pass the leak checker tests, as they should no longer be
needed.

* kn/passing-leak-tests:
  t: remove unexpected SANITIZE_LEAK variables
2025-05-28 07:59:56 -07:00
Junio C Hamano
80f49f2ae7 Merge branch 'en/sequencer-comment-messages'
Prefix '#' to the commit title in the "rebase -i" todo file, just
like a merge commit being replayed.

* en/sequencer-comment-messages:
  sequencer: make it clearer that commit descriptions are just comments
2025-05-27 13:59:11 -07:00
Junio C Hamano
d8b48af391 Merge branch 'sj/use-mmap-to-check-packed-refs'
The code path to access the "packed-refs" file while "fsck" is
taught to mmap the file, instead of reading the whole file in the
memory.

* sj/use-mmap-to-check-packed-refs:
  packed-backend: mmap large "packed-refs" file during fsck
  packed-backend: extract snapshot allocation in `load_contents`
  packed-backend: fsck should warn when "packed-refs" file is empty
2025-05-27 13:59:10 -07:00
Junio C Hamano
6e5fb398d3 Merge branch 'ds/sparse-apply-add-p'
"git apply" and "git add -i/-p" code paths no longer unnecessarily
expand sparse-index while working.

* ds/sparse-apply-add-p:
  p2000: add performance test for patch-mode commands
  reset: integrate sparse index with --patch
  git add: make -p/-i aware of sparse index
  apply: integrate with the sparse index
2025-05-27 13:59:09 -07:00
Junio C Hamano
f545f401be Merge branch 'en/merge-tree-check'
"git merge-tree" learned an option to see if it resolves cleanly
without actually creating a result.

* en/merge-tree-check:
  merge-tree: add a new --quiet flag
  merge-ort: add a new mergeability_only option
2025-05-27 13:59:08 -07:00
Junio C Hamano
17d9dbd3c2 Merge branch 'jk/no-funny-object-types'
Support to create a loose object file with unknown object type has
been dropped.

* jk/no-funny-object-types:
  object-file: drop support for writing objects with unknown types
  hash-object: handle --literally with OPT_NEGBIT
  hash-object: merge HASH_* and INDEX_* flags
  hash-object: stop allowing unknown types
  t: add lib-loose.sh
  t/helper: add zlib test-tool
  oid_object_info(): drop type_name strbuf
  fsck: stop using object_info->type_name strbuf
  oid_object_info_convert(): stop using string for object type
  cat-file: use type enum instead of buffer for -t option
  object-file: drop OBJECT_INFO_ALLOW_UNKNOWN_TYPE flag
  cat-file: make --allow-unknown-type a noop
  object-file.h: fix typo in variable declaration
2025-05-27 13:59:08 -07:00