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Rebase Summary: main

From: 87b06f475d (mingw: use strftime() directly in UCRT builds (git-for-windows#6130), 2026-03-25) (aece80a0ab..87b06f475d)

Resolved: 87b06f4 (mingw: use strftime() directly in UCRT builds (git-for-windows#6130), 2026-03-25)

resolved merge conflicts by taking HEAD's side in all three files, matching original merge resolution

Range-diff
  • 1: 87b06f4 ! 1: ec87da9 mingw: use strftime() directly in UCRT builds (mingw: use strftime() directly in UCRT builds git#6130)

    @@ Commit message
         since ec47a33fd2c3b679c3d8cbd440752414adb56ce9, i.e. for a _really_ long
         time.
     
    - ## Documentation/git-svn.adoc ##
    -@@ Documentation/git-svn.adoc: SYNOPSIS
    - --------
    - [verse]
    - 'git svn' <command> [<options>] [<arguments>]
    -+(UNSUPPORTED!)
    - 
    - DESCRIPTION
    - -----------
    -
    - ## compat/mingw.c ##
    -@@ compat/mingw.c: int mingw_utime (const char *file_name, const struct utimbuf *times)
    - size_t mingw_strftime(char *s, size_t max,
    - 		      const char *format, const struct tm *tm)
    - {
    -+#ifdef _UCRT
    -+	size_t ret = strftime(s, max, format, tm);
    -+#else
    - 	/* a pointer to the original strftime in case we can't find the UCRT version */
    - 	static size_t (*fallback)(char *, size_t, const char *, const struct tm *) = strftime;
    - 	size_t ret;
    -@@ compat/mingw.c: size_t mingw_strftime(char *s, size_t max,
    - 		ret = strftime(s, max, format, tm);
    - 	else
    - 		ret = fallback(s, max, format, tm);
    -+#endif
    - 
    - 	if (!ret && errno == EINVAL)
    - 		die("invalid strftime format: '%s'", format);
    + ## builtin/reset.c ##
    + remerge CONFLICT (content): Merge conflict in builtin/reset.c
    + index cfdf0a6cdc..1cd7e61fe4 100644
    + --- builtin/reset.c
    + +++ builtin/reset.c
    +@@ builtin/reset.c: int cmd_reset(int argc,
    + 	struct object_id oid;
    + 	struct pathspec pathspec;
    + 	int intent_to_add = 0;
    +-<<<<<<< 67948d5345 (`git svn`: remove deprecation note (since it is no longer included in Git for Windows, anyway) (#6142))
    + 	struct interactive_options interactive_opts = INTERACTIVE_OPTIONS_INIT;
    +-=======
    +-	struct add_p_opt add_p_opt = ADD_P_OPT_INIT;
    +->>>>>>> 1253fdbf0c (mingw: use strftime() directly in UCRT builds)
    + 	int nul_term_line = 0, read_from_stdin = 0;
    + 	const struct option options[] = {
    + 		OPT__QUIET(&quiet, N_("be quiet, only report errors")),
     
    - ## git-svn.perl ##
    -@@ git-svn.perl: sub term_init {
    - 			: new Term::ReadLine 'git-svn';
    - }
    + ## refs/reftable-backend.c ##
    + remerge CONFLICT (content): Merge conflict in refs/reftable-backend.c
    + index c2ebe2bb89..23b18837c8 100644
    + --- refs/reftable-backend.c
    + +++ refs/reftable-backend.c
    +@@ refs/reftable-backend.c: static struct ref_store *reftable_be_init(struct repository *repo,
    + 	mask = umask(0);
    + 	umask(mask);
      
    -+sub deprecated_warning {
    -+    my @lines = @_;
    -+    if (-t STDERR) {
    -+        @lines = map { "\e[33m$_\e[0m" } @lines;
    -+    }
    -+    warn join("\n", @lines), "\n";
    -+}
    -+
    -+deprecated_warning(
    -+	"WARNING: \`git svn\` is no longer supported by the Git for Windows project.",
    -+	"See https://github.com/git-for-windows/git/issues/5405 for details."
    -+);
    -+
    - my $cmd;
    - for (my $i = 0; $i < @ARGV; $i++) {
    - 	if (defined $cmd{$ARGV[$i]}) {
    -
    - ## t/t9108-git-svn-glob.sh ##
    -@@ t/t9108-git-svn-glob.sh: test_expect_success 'test disallow multi-globs' '
    - 		svn_cmd commit -m "try to try"
    - 	) &&
    - 	test_must_fail git svn fetch three 2> stderr.three &&
    --	test_cmp expect.three stderr.three
    -+	sed "/^WARNING.*no.* supported/{N;d}" <stderr.three >stderr.three.clean &&
    -+	test_cmp expect.three stderr.three.clean
    - 	'
    +-<<<<<<< 67948d5345 (`git svn`: remove deprecation note (since it is no longer included in Git for Windows, anyway) (#6142))
    + 	refs_compute_filesystem_location(gitdir, payload, &is_worktree, &refdir,
    + 					 &ref_common_dir);
      
    - test_done
    + 	reftable_set_alloc(malloc, realloc, free);
    + 	base_ref_store_init(&refs->base, repo, refdir.buf, &refs_be_reftable);
    +-=======
    +-	reftable_set_alloc(malloc, realloc, free);
    +-	base_ref_store_init(&refs->base, repo, gitdir, &refs_be_reftable);
    +->>>>>>> 1253fdbf0c (mingw: use strftime() directly in UCRT builds)
    + 	strmap_init(&refs->worktree_backends);
    + 	refs->store_flags = store_flags;
    + 	refs->log_all_ref_updates = repo_settings_get_log_all_ref_updates(repo);
     
    - ## t/t9109-git-svn-multi-glob.sh ##
    -@@ t/t9109-git-svn-multi-glob.sh: test_expect_success 'test disallow multiple globs' '
    - 		svn_cmd commit -m "try to try"
    - 	) &&
    - 	test_must_fail git svn fetch three 2> stderr.three &&
    --	test_cmp expect.three stderr.three
    -+	sed "/^WARNING.*no.* supported/{N;d}" <stderr.three >stderr.three.clean &&
    -+	test_cmp expect.three stderr.three.clean
    - 	'
    - 
    - test_done
    -
    - ## t/t9168-git-svn-partially-globbed-names.sh ##
    -@@ t/t9168-git-svn-partially-globbed-names.sh: test_expect_success 'test disallow prefixed multi-globs' '
    - 		svn_cmd commit -m "try to try"
    - 	) &&
    - 	test_must_fail git svn fetch four 2>stderr.four &&
    --	test_cmp expect.four stderr.four &&
    -+	sed "/^WARNING.*no.* supported/{N;d}" <stderr.four >stderr.four.clean &&
    -+	test_cmp expect.four stderr.four.clean &&
    - 	git config --unset svn-remote.four.branches &&
    - 	git config --unset svn-remote.four.tags
    - 	'
    -@@ t/t9168-git-svn-partially-globbed-names.sh: test_expect_success 'test disallow multiple asterisks in one word' '
    - 		svn_cmd commit -m "try to try"
    - 	) &&
    - 	test_must_fail git svn fetch six 2>stderr.six &&
    --	test_cmp expect.six stderr.six
    -+	sed "/^WARNING.*no.* supported/{N;d}" <stderr.six >stderr.six.clean &&
    -+	test_cmp expect.six stderr.six.clean
    - 	'
    - 
    - test_done
    + ## t/meson.build ##
    + remerge CONFLICT (content): Merge conflict in t/meson.build
    + index aa3cc44eef..b108676299 100644
    + --- t/meson.build
    + +++ t/meson.build
    +@@ t/meson.build: integration_tests = [
    +   't7422-submodule-output.sh',
    +   't7423-submodule-symlinks.sh',
    +   't7424-submodule-mixed-ref-formats.sh',
    +-<<<<<<< 67948d5345 (`git svn`: remove deprecation note (since it is no longer included in Git for Windows, anyway) (#6142))
    +   't7425-submodule-gitdir-path-extension.sh',
    +   't7426-submodule-get-default-remote.sh',
    +-=======
    +->>>>>>> 1253fdbf0c (mingw: use strftime() directly in UCRT builds)
    +   't7429-submodule-long-path.sh',
    +   't7450-bad-git-dotfiles.sh',
    +   't7500-commit-template-squash-signoff.sh',

To: ec87da95af (mingw: use strftime() directly in UCRT builds (git-for-windows#6130), 2026-03-25) (b4cd1d3aef..ec87da95af)

Statistics

Metric Count
Total conflicts 1
Skipped (upstreamed) 0
Resolved surgically 1
Range-diff (click to expand)

dscho and others added 30 commits March 31, 2026 02:12
On Windows, there are several categories of absolute paths. One such
category starts with a backslash and is implicitly relative to the drive
associated with the current working directory. Example:

	c:
	git clone https://github.com/git-for-windows/git \G4W

should clone into C:\G4W.

Back in 2017, Juan Carlos Arevalo Baeza reported a bug in Git's handling
of those absolute paths was identified, and fixed. Let's make sure that
it stays fixed.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Windows' equivalent to "bind mounts", NTFS junction points, can be
unlinked without affecting the mount target. This is clearly what users
expect to happen when they call `git clean -dfx` in a worktree that
contains NTFS junction points: the junction should be removed, and the
target directory of said junction should be left alone (unless it is
inside the worktree).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
While Git for Windows does not _ship_ Python (in order to save on
bandwidth), MSYS2 provides very fine Python interpreters that users can
easily take advantage of, by using Git for Windows within its SDK.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Thorough benchmarking with repacking a subset of linux.git (the commit
history reachable from 93a6fef ([PATCH] fix the SYSCTL=n compilation,
2007-02-28), to be precise) suggest that this allocator is on par, in
multi-threaded situations maybe even better than nedmalloc:

`git repack -adfq` with mimalloc, 8 threads:

31.166991900 27.576763800 28.712311000 27.373859000 27.163141900

`git repack -adfq` with nedmalloc, 8 threads:

31.915032900 27.149883100 28.244933700 27.240188800 28.580849500

In a different test using GitHub Actions build agents (probably
single-threaded, a core-strength of nedmalloc)):

`git repack -q -d -l -A --unpack-unreachable=2.weeks.ago` with mimalloc:

943.426 978.500 939.709 959.811 954.605

`git repack -q -d -l -A --unpack-unreachable=2.weeks.ago` with nedmalloc:

995.383 952.179 943.253 963.043 980.468

While these measurements were not executed with complete scientific
rigor, as no hardware was set aside specifically for these benchmarks,
it shows that mimalloc and nedmalloc perform almost the same, nedmalloc
with a bit higher variance and also slightly higher average (further
testing suggests that nedmalloc performs worse in multi-threaded
situations than in single-threaded ones).

In short: mimalloc seems to be slightly better suited for our purposes
than nedmalloc.

Seeing that mimalloc is developed actively, while nedmalloc ceased to
see any updates in eight years, let's use mimalloc on Windows instead.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Since commit 0c499ea (send-pack: demultiplex a sideband stream with
status data, 2010-02-05) the send-pack builtin uses the side-band-64k
capability if advertised by the server.

Unfortunately this breaks pushing over the dump git protocol if used
over a network connection.

The detailed reasons for this breakage are (by courtesy of Jeff Preshing,
quoted from https://groups.google.com/d/msg/msysgit/at8D7J-h7mw/eaLujILGUWoJ):

	MinGW wraps Windows sockets in CRT file descriptors in order to
	mimic the functionality of POSIX sockets. This causes msvcrt.dll
	to treat sockets as Installable File System (IFS) handles,
	calling ReadFile, WriteFile, DuplicateHandle and CloseHandle on
	them. This approach works well in simple cases on recent
	versions of Windows, but does not support all usage patterns. In
	particular, using this approach, any attempt to read & write
	concurrently on the same socket (from one or more processes)
	will deadlock in a scenario where the read waits for a response
	from the server which is only invoked after the write. This is
	what send_pack currently attempts to do in the use_sideband
	codepath.

The new config option `sendpack.sideband` allows to override the
side-band-64k capability of the server, and thus makes the dumb git
protocol work.

Other transportation methods like ssh and http/https still benefit from
the sideband channel, therefore the default value of `sendpack.sideband`
is still true.

Signed-off-by: Thomas Braun <thomas.braun@byte-physics.de>
Signed-off-by: Oliver Schneider <oliver@assarbad.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
In 1e64d18 (mingw: do resolve symlinks in `getcwd()`) a problem was
introduced that causes git for Windows to stop working with certain
mapped network drives (in particular, drives that are mapped to
locations with long path names). Error message was "fatal: Unable to
read current working directory: No such file or directory". Present
change fixes this issue as discussed in
git-for-windows#2480

Signed-off-by: Bjoern Mueller <bjoernm@gmx.de>
Update clink.pl to link with either libcurl.lib or libcurl-d.lib
depending on whether DEBUG=1 is set.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
There is a Win32 API function to resolve symbolic links, and we can use
that instead of resolving them manually. Even better, this function also
resolves NTFS junction points (which are somewhat similar to bind
mounts).

This fixes git-for-windows#2481.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The native Windows HTTPS backend is based on Secure Channel which lets
the caller decide how to handle revocation checking problems caused by
missing information in the certificate or offline CRL distribution
points.

Unfortunately, cURL chose to handle these problems differently than
OpenSSL by default: while OpenSSL happily ignores those problems
(essentially saying "¯\_(ツ)_/¯"), the Secure Channel backend will error
out instead.

As a remedy, the "no revoke" mode was introduced, which turns off
revocation checking altogether. This is a bit heavy-handed. We support
this via the `http.schannelCheckRevoke` setting.

In curl/curl#4981, we contributed an opt-in
"best effort" strategy that emulates what OpenSSL seems to do.

In Git for Windows, we actually want this to be the default. This patch
makes it so, introducing it as a new value for the
`http.schannelCheckRevoke" setting, which now becmes a tristate: it
accepts the values "false", "true" or "best-effort" (defaulting to the
last one).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The convention in Git project's shell scripts is to have white-space
_before_, but not _after_ the `>` (or `<`).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This change enhances `git commit --cleanup=scissors` by detecting
scissors lines ending in either LF (UNIX-style) or CR/LF (DOS-style).

Regression tests are included to specifically test for trailing
comments after a CR/LF-terminated scissors line.

Signed-off-by: Luke Bonanomi <lbonanomi@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
For some reason, this test case was indented with 4 spaces instead of 1
horizontal tab. The other test cases in the same test script are fine.

Signed-off-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
As of Git v2.28.0, the diff for files staged via `git add -N` marks them
as new files. Git GUI was ill-prepared for that, and this patch teaches
Git GUI about them.

Please note that this will not even fix things with v2.28.0, as the
`rp/apply-cached-with-i-t-a` patches are required on Git's side, too.

This fixes git-for-windows#2779

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
The vcpkg downloads may not succeed. Warn careful readers of the time out.

A simple retry will usually resolve the issue.

Signed-off-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Dennis Ameling <dennis@dennisameling.com>
Git's regular Makefile mentions that HOST_CPU should be defined when cross-compiling Git: https://github.com/git-for-windows/git/blob/37796bca76ef4180c39ee508ca3e42c0777ba444/Makefile#L438-L439

This is then used to set the GIT_HOST_CPU variable when compiling Git: https://github.com/git-for-windows/git/blob/37796bca76ef4180c39ee508ca3e42c0777ba444/Makefile#L1337-L1341

Then, when the user runs `git version --build-options`, it returns that value: https://github.com/git-for-windows/git/blob/37796bca76ef4180c39ee508ca3e42c0777ba444/help.c#L658

This commit adds the same functionality to the CMake configuration. Users can now set -DHOST_CPU= to set the target architecture.

Signed-off-by: Dennis Ameling <dennis@dennisameling.com>
As reported in newren/git-filter-repo#225, it
looks like 99 bytes is not really sufficient to represent e.g. the full
path to Python when installed via Windows Store (and this path is used
in the hasb bang line when installing scripts via `pip`).

Let's increase it to what is probably the maximum sensible path size:
MAX_PATH. This makes `parse_interpreter()` in line with what
`lookup_prog()` handles.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Vilius Šumskas <vilius@sumskas.eu>
We used to have that `make vcxproj` hack, but a hack it is. In the
meantime, we have a much cleaner solution: using CMake, either
explicitly, or even more conveniently via Visual Studio's built-in CMake
support (simply open Git's top-level directory via File>Open>Folder...).

Let's let the `README` reflect this.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This adds support for a new http.sslAutoClientCert config value.

In cURL 7.77 or later the schannel backend does not automatically send
client certificates from the Windows Certificate Store anymore.

This config value is only used if http.sslBackend is set to "schannel",
and can be used to opt in to the old behavior and force cURL to send
client certificates.

This fixes git-for-windows#3292

Signed-off-by: Pascal Muller <pascalmuller@gmail.com>
Because `git subtree` (unlike most other `contrib` modules) is included as
part of the standard release of Git for Windows, its stability should be
verified as consistently as it is for the rest of git. By including the
`git subtree` tests in the CI workflow, these tests are as much of a gate to
merging and indicator of stability as the standard test suite.

Signed-off-by: Victoria Dye <vdye@github.com>
Ensure key CMake option values are part of the CMake output to
facilitate user support when tool updates impact the wider CMake
actions, particularly ongoing 'improvements' in Visual Studio.

These CMake displays perform the same function as the build-options.txt
provided in the main Git for Windows. CMake is already chatty.
The setting of CMAKE_EXPORT_COMPILE_COMMANDS is also reported.

Include the environment's CMAKE_EXPORT_COMPILE_COMMANDS value which
may have been propogated to CMake's internal value.

Testing the CMAKE_EXPORT_COMPILE_COMMANDS processing can be difficult
in the Visual Studio environment, as it may be cached in many places.
The 'environment' may include the OS, the user shell, CMake's
own environment, along with the Visual Studio presets and caches.

See previous commit for arefacts that need removing for a clean test.

Signed-off-by: Philip Oakley <philipoakley@iee.email>
To verify that the `clean` side of the `clean`/`smudge` filter code is
correct with regards to LLP64 (read: to ensure that `size_t` is used
instead of `unsigned long`), here is a test case using a trivial filter,
specifically _not_ writing anything to the object store to limit the
scope of the test case.

As in previous commits, the `big` file from previous test cases is
reused if available, to save setup time, otherwise re-generated.

Signed-off-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
In the case of Git for Windows (say, in a Git Bash window) running in a
Windows Subsystem for Linux (WSL) directory, the GetNamedSecurityInfoW()
call in is_path_owned_By_current_side() returns an error code other than
ERROR_SUCCESS. This is consistent behavior across this boundary.

In these cases, the owner would always be different because the WSL
owner is a different entity than the Windows user.

The change here is to suppress the error message that looks like this:

  error: failed to get owner for '//wsl.localhost/...' (1)

Before this change, this warning happens for every Git command,
regardless of whether the directory is marked with safe.directory.

Signed-off-by: Derrick Stolee <derrickstolee@github.com>
For Windows builds >= 15063 set $env:TERM to "xterm-256color" instead of
"cygwin" because they have a more capable console system that supports
this. Also set $env:COLORTERM="truecolor" if unset.

$env:TERM is initialized so that ANSI colors in color.c work, see
29a3963 (Win32: patch Windows environment on startup, 2012-01-15).

See git-for-windows#3629 regarding problems caused by always setting
$env:TERM="cygwin".

This is the same heuristic used by the Cygwin runtime.

Signed-off-by: Rafael Kitover <rkitover@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
NtQueryObject under Wine can return a success but fill out no name.
In those situations, Wine will set Buffer to NULL, and set result to
the sizeof(OBJECT_NAME_INFORMATION).

Running a command such as

echo "$(git.exe --version 2>/dev/null)"

will crash due to a NULL pointer dereference when the code attempts to
null terminate the buffer, although, weirdly, removing the subshell or
redirecting stdout to a file will not trigger the crash.

Code has been added to also check Buffer and Length to ensure the check
is as robust as possible due to the current behavior being fragile at
best, and could potentially change in the future

This code is based on the behavior of NtQueryObject under wine and
reactos.

Signed-off-by: Christopher Degawa <ccom@randomderp.com>
Start work on a new 'git survey' command to scan the repository
for monorepo performance and scaling problems.  The goal is to
measure the various known "dimensions of scale" and serve as a
foundation for adding additional measurements as we learn more
about Git monorepo scaling problems.

The initial goal is to complement the scanning and analysis performed
by the GO-based 'git-sizer' (https://github.com/github/git-sizer) tool.
It is hoped that by creating a builtin command, we may be able to take
advantage of internal Git data structures and code that is not
accessible from GO to gain further insight into potential scaling
problems.

Co-authored-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Jeff Hostetler <git@jeffhostetler.com>
Signed-off-by: Derrick Stolee <stolee@gmail.com>
This is no longer true in general, not with supporting Clang out of the
box.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
By default we will scan all references in "refs/heads/", "refs/tags/"
and "refs/remotes/".

Add command line opts let the use ask for all refs or a subset of them
and to include a detached HEAD.

Signed-off-by: Jeff Hostetler <git@jeffhostetler.com>
Signed-off-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
This option was added in fa93bb2 (MinGW: Fix stat definitions to
work with MinGW runtime version 4.0, 2013-09-11), i.e. a _long_ time
ago. So long, in fact, that it still targeted MinGW. But we switched to
mingw-w64 in 2015, which seems not to share the problem, and therefore
does not require a fix.

Even worse: This flag is incompatible with UCRT64, which we are about to
support by way of upstreaming `mingw-w64-git` to the MSYS2 project, see
msys2/MINGW-packages#26470 for details.

So let's send that option into its well-deserved retirement.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
dscho and others added 30 commits March 31, 2026 02:12
The Git for Windows project has grown quite complex over the years,
certainly much more complex than during the first years where the
`msysgit.git` repository was abusing Git for package management purposes
and the `git/git` fork was called `4msysgit.git`.

Let's describe the status quo in a thorough way.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The TerminateProcess() function does not actually leave the child
processes any chance to perform any cleanup operations. This is bad
insofar as Git itself expects its signal handlers to run.

A symptom is e.g. a left-behind .lock file that would not be left behind
if the same operation was run, say, on Linux.

To remedy this situation, we use an obscure trick: we inject a thread
into the process that needs to be killed and to let that thread run the
ExitProcess() function with the desired exit status. Thanks J Wyman for
describing this trick.

The advantage is that the ExitProcess() function lets the atexit
handlers run. While this is still different from what Git expects (i.e.
running a signal handler), in practice Git sets up signal handlers and
atexit handlers that call the same code to clean up after itself.

In case that the gentle method to terminate the process failed, we still
fall back to calling TerminateProcess(), but in that case we now also
make sure that processes spawned by the spawned process are terminated;
TerminateProcess() does not give the spawned process a chance to do so
itself.

Please note that this change only affects how Git for Windows tries to
terminate processes spawned by Git's own executables. Third-party
software that *calls* Git and wants to terminate it *still* need to make
sure to imitate this gentle method, otherwise this patch will not have
any effect.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The Windows Subsystem for Linux (WSL) version 2 allows to use `chmod` on
NTFS volumes provided that they are mounted with metadata enabled (see
https://devblogs.microsoft.com/commandline/chmod-chown-wsl-improvements/
for details), for example:

	$ chmod 0755 /mnt/d/test/a.sh

In order to facilitate better collaboration between the Windows
version of Git and the WSL version of Git, we can make the Windows
version of Git also support reading and writing NTFS file modes
in a manner compatible with WSL.

Since this slightly slows down operations where lots of files are
created (such as an initial checkout), this feature is only enabled when
`core.WSLCompat` is set to true. Note that you also have to set
`core.fileMode=true` in repositories that have been initialized without
enabling WSL compatibility.

There are several ways to enable metadata loading for NTFS volumes
in WSL, one of which is to modify `/etc/wsl.conf` by adding:

```
[automount]
enabled = true
options = "metadata,umask=027,fmask=117"
```

And reboot WSL.

It can also be enabled temporarily by this incantation:

	$ sudo umount /mnt/c &&
	  sudo mount -t drvfs C: /mnt/c -o metadata,uid=1000,gid=1000,umask=22,fmask=111

It's important to note that this modification is compatible with, but
does not depend on WSL. The helper functions in this commit can operate
independently and functions normally on devices where WSL is not
installed or properly configured.

Signed-off-by: xungeng li <xungeng@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The Git project followed Git for Windows' lead and added their Code of
Conduct, based on the Contributor Covenant v1.4, later updated to v2.0.

We adapt it slightly to Git for Windows.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Previously, we did not install any handler for Ctrl+C, but now we really
want to because the MSYS2 runtime learned the trick to call the
ConsoleCtrlHandler when Ctrl+C was pressed.

With this, hitting Ctrl+C while `git log` is running will only terminate
the Git process, but not the pager. This finally matches the behavior on
Linux and on macOS.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This patch introduces support to set special NTFS attributes that are
interpreted by the Windows Subsystem for Linux as file mode bits, UID
and GID.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Getting started contributing to Git can be difficult on a Windows
machine. CONTRIBUTING.md contains a guide to getting started, including
detailed steps for setting up build tools, running tests, and
submitting patches to upstream.

[includes an example by Pratik Karki how to submit v2, v3, v4, etc.]

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
…ITOR"

In e3f7e01 (Revert "editor: save and reset terminal after calling
EDITOR", 2021-11-22), we reverted the commit wholesale where the
terminal state would be saved and restored before/after calling an
editor.

The reverted commit was intended to fix a problem with Windows Terminal
where simply calling `vi` would cause problems afterwards.

To fix the problem addressed by the revert, but _still_ keep the problem
with Windows Terminal fixed, let's revert the revert, with a twist: we
restrict the save/restore _specifically_ to the case where `vi` (or
`vim`) is called, and do not do the same for any other editor.

This should still catch the majority of the cases, and will bridge the
time until the original patch is re-done in a way that addresses all
concerns.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Handle Ctrl+C in Git Bash nicely

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Includes touch-ups by 마누엘, Philip Oakley and 孙卓识.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The `--stdin` option was a well-established paradigm in other commands,
therefore we implemented it in `git reset` for use by Visual Studio.

Unfortunately, upstream Git decided that it is time to introduce
`--pathspec-from-file` instead.

To keep backwards-compatibility for some grace period, we therefore
reinstate the `--stdin` option on top of the `--pathspec-from-file`
option, but mark it firmly as deprecated.

Helped-by: Victoria Dye <vdye@github.com>
Helped-by: Matthew John Cheetham <mjcheetham@outlook.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
A fix for calling `vim` in Windows Terminal caused a regression and was
reverted. We partially un-revert this, to get the fix again.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
With improvements by Clive Chan, Adric Norris, Ben Bodenmiller and
Philip Oakley.

Helped-by: Clive Chan <cc@clive.io>
Helped-by: Adric Norris <landstander668@gmail.com>
Helped-by: Ben Bodenmiller <bbodenmiller@hotmail.com>
Helped-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Brendan Forster <brendan@github.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Rather than using private IFTTT Applets that send mails to this
maintainer whenever a new version of a Git for Windows component was
released, let's use the power of GitHub workflows to make this process
publicly visible.

This workflow monitors the Atom/RSS feeds, and opens a ticket whenever a
new version was released.

Note: Bash sometimes releases multiple patched versions within a few
minutes of each other (i.e. 5.1p1 through 5.1p4, 5.0p15 and 5.0p16). The
MSYS2 runtime also has a similar system. We can address those patches as
a group, so we shouldn't get multiple issues about them.

Note further: We're not acting on newlib releases, OpenSSL alphas, Perl
release candidates or non-stable Perl releases. There's no need to open
issues about them.

Co-authored-by: Matthias Aßhauer <mha1993@live.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reintroduce the 'core.useBuiltinFSMonitor' config setting (originally added
in 0a756b2 (fsmonitor: config settings are repository-specific,
2021-03-05)) after its removal from the upstream version of FSMonitor.

Upstream, the 'core.useBuiltinFSMonitor' setting was rendered obsolete by
"overloading" the 'core.fsmonitor' setting to take a boolean value. However,
several applications (e.g., 'scalar') utilize the original config setting,
so it should be preserved for a deprecation period before complete removal:

* if 'core.fsmonitor' is a boolean, the user is correctly using the new
  config syntax; do not use 'core.useBuiltinFSMonitor'.
* if 'core.fsmonitor' is unspecified, use 'core.useBuiltinFSMonitor'.
* if 'core.fsmonitor' is a path, override and use the builtin FSMonitor if
  'core.useBuiltinFSMonitor' is 'true'; otherwise, use the FSMonitor hook
  indicated by the path.

Additionally, for this deprecation period, advise users to switch to using
'core.fsmonitor' to specify their use of the builtin FSMonitor.

Signed-off-by: Victoria Dye <vdye@github.com>
This topic branch re-adds the deprecated --stdin/-z options to `git
reset`. Those patches were overridden by a different set of options in
the upstream Git project before we could propose `--stdin`.

We offered this in MinGit to applications that wanted a safer way to
pass lots of pathspecs to Git, and these applications will need to be
adjusted.

Instead of `--stdin`, `--pathspec-from-file=-` should be used, and
instead of `-z`, `--pathspec-file-nul`.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Git for Windows accepts pull requests; Core Git does not. Therefore we
need to adjust the template (because it only matches core Git's
project management style, not ours).

Also: direct Git for Windows enhancements to their contributions page,
space out the text for easy reading, and clarify that the mailing list
is plain text, not HTML.

Signed-off-by: Philip Oakley <philipoakley@iee.org>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Originally introduced as `core.useBuiltinFSMonitor` in Git for Windows
and developed, improved and stabilized there, the built-in FSMonitor
only made it into upstream Git (after unnecessarily long hemming and
hawing and throwing overly perfectionist style review sticks into the
spokes) as `core.fsmonitor = true`.

In Git for Windows, with this topic branch, we re-introduce the
now-obsolete config setting, with warnings suggesting to existing users
how to switch to the new config setting, with the intention to
ultimately drop the patch at some stage.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This is the recommended way on GitHub to describe policies revolving around
security issues and about supported versions.

Helped-by: Sven Strickroth <email@cs-ware.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
…updates

Start monitoring updates of Git for Windows' component in the open
Add a README.md for GitHub goodness.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This topic branch addresses the following vulnerability:

- **CVE-2025-66413**:
  When a user clones a repository from an attacker-controlled server,
  Git may attempt NTLM authentication and disclose the user's NTLMv2 hash
  to the remote server. Since NTLM hashing is weak, the captured hash can
  potentially be brute-forced to recover the user's credentials. This is
  addressed by disabling NTLM authentication by default.
  (GHSA-hv9c-4jm9-jh3x)

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
In 816db62 (credential: advertise NTLM suppression and allow
helpers to re-enable, 2026-02-09), Git learned to advertise that NTLM
authentication was suppressed to credential helpers. It also introduced
a way to allow credential helpers to opt-back-in to NTLM authentication
via the `ntlm_allow=1` credential protocol flag.

There is a bug in the logic of 816db62 that means we are responding
to the `ntlm_allow=1` signal too late in the auth retry codepath; we've
already made the second-attempt request!

Move adding of NTLM as a valid auth method to `http_request_reauth`
right after the credential helper is consulted following the first
request, but (now) before we made the second request.

Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com>
The `osx-clang` and `osx-reftable` CI jobs on macOS started failing
with:

    compat/regcomp_enhanced.c:7:13: error: use of undeclared identifier
    'REG_ENHANCED'

The failure coincides with the GitHub Actions `macos-14-arm64` runner
image being updated from `20260302.0147` to `20260317.0174`.  The key
change in that image update is the Homebrew version bump from 5.0.15 to
5.1.0.

Homebrew 5.1.0 introduced automatic linking for versioned keg-only
formulae when the unversioned sibling is absent (see
Homebrew/brew#21676, announced at
https://brew.sh/2026/03/10/homebrew-5.1.0/).  The runner image installs
`llvm@15` (keg-only) but not unversioned `llvm`.  Under Homebrew 5.0.x
that formula stayed in its keg and its `clang` binary only lived at
`$(brew --prefix llvm@15)/bin/clang`.  Under 5.1.0, because unversioned
`llvm` is absent, `llvm@15` is now auto-linked into
`/opt/homebrew/bin/`, which sits earlier in PATH than `/usr/bin`.

The net effect is that `CC=clang` in CI now silently resolves to
Homebrew's LLVM 15.0.7 clang instead of Apple's system clang (Apple
clang 15.0.0, bundled with Xcode 15.4).  The runner image README
confirms this: the reported "Clang/LLVM" version flipped from 15.0.0 to
15.0.7 between image releases, matching the Homebrew LLVM version
exactly.

Homebrew's LLVM clang uses different include paths from Apple's clang.
In particular, the `regex.h` it sees does not define `REG_ENHANCED`,
which is an Apple-specific extension present in the macOS SDK headers
since at least macOS 10.12.  The Makefile unconditionally sets
`USE_ENHANCED_BASIC_REGULAR_EXPRESSIONS` for all Darwin builds via
`config.mak.uname`, which pulls in `compat/regcomp_enhanced.c`, which
references `REG_ENHANCED`, hence the build failure.

The `osx-gcc` job (CC=gcc-13) is unaffected because Homebrew GCC is
configured to use Apple's SDK sysroot, so it still picks up Apple's
`regex.h` which defines `REG_ENHANCED`.  The `osx-meson` job is
unaffected because Meson does a compile-time test for `REG_ENHANCED`
(via `compiler.get_define`) and simply skips the feature when it is
absent.

Work around this by setting `NO_REGEX` when `CC=clang` on Darwin, which
makes the build use Git's bundled regex implementation instead of the
system one.  This sidesteps the missing `REG_ENHANCED` define entirely.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
As of git-for-windows/MINGW-packages#187, Git
for Windows no longer includes `git svn` in its installers and portable
Git editions.

As a consequence, the deprecation note is no longer necessary.

Even worse: Since the recommendation for users who want (or at least
need) to continue using `git svn` is to use the MSYS2 package instead,
and that MSYS2 package is built from Git for Windows' source code, they
would now be bothered by a note that they do not need.

So let's drop that deprecation note.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
In 816db62 (credential: advertise NTLM suppression and allow helpers
to re-enable, 2026-02-09), Git learned to advertise that NTLM
authentication was suppressed to credential helpers. It also introduced
a way to allow credential helpers to opt-back-in to NTLM authentication
via the `ntlm_allow=1` credential protocol flag.

There is a bug in the logic of 816db62 that means we are responding
to the `ntlm_allow=1` signal too late in the auth retry codepath; we've
already made the second-attempt request!

Move adding of NTLM as a valid auth method to `http_request_reauth`
right after the credential helper is consulted following the first
request, but (now) before we made the second request.
… Git for Windows, anyway) (git-for-windows#6142)

As of git-for-windows/MINGW-packages#187, Git
for Windows no longer includes `git svn` in its installers and portable
Git editions.

As a consequence, the deprecation note is no longer necessary.

Even worse: Since the recommendation for users who want (or at least
need) to continue using `git svn` is to use the MSYS2 package instead,
and that MSYS2 package is built from Git for Windows' source code, they
would now be bothered by a note that they do not need.

So let's drop that deprecation note.
Currently, Git for Windows is built off of the MINGW64 tool chain. But
this will have to change because [the MSYS2 project deprecated this tool
chain in favor of
UCRT64](https://www.msys2.org/news/#2026-03-15-deprecating-the-mingw64-environment).
Of course, that's only possible because they dropped support for Windows
8.1, which Git for Windows will probably have to do relatively soon. The
best time to do that is probably [the Git 3.0 inflection
point](git-for-windows#6018) when we
already promised to drop support for older Windows versions.

To prepare for such a huge change, I investigated what needs to be
changed in Git for Windows' source code. And the good news is there's
actually not very much. This here patch seems to be the only change
that's necessary, and not even _strictly_ necessary: the
`mingw_strftime()` wrapper would still do the right thing. It would just
uselessly load the same function that's already loaded, dynamically,
again.

- The `strerror()` override [is guarded by an `#ifndef
_UCRT`](https://github.com/git-for-windows/git/blob/v2.53.0.windows.2/compat/mingw-posix.h#L294-L296),
- `PRIuMAX` resolves to standard `"llu"` [via
`<inttypes.h>`](https://github.com/git-for-windows/git/blob/v2.53.0.windows.2/compat/mingw-posix.h#L449-L454)
(note that `__MINGW64_VERSION_MAJOR` is defined both in MINGW64 and
UCRT64, by virtue of using the `mingw-w64-headers`),
-
[`__USE_MINGW_ANSI_STDIO=0`](https://github.com/git-for-windows/git/blob/v2.53.0.windows.2/config.mak.uname#L751C19-L751C33)
is irrelevant because [`_UCRT` short-circuits
it](https://github.com/git-for-windows/git-sdk-64/blob/08933e673c79b5db48419917a2b02746b390afc4/mingw64/include/inttypes.h#L33),
and
- `SNPRINTF_RETURNS_BOGUS` hasn't been set for Git for Windows' builds
since ec47a33, i.e. for a _really_ long
time.
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