Commit Graph

175431 Commits

Author SHA1 Message Date
Johannes Schindelin
4f767c3fc9 mingw: ignore HOMEDRIVE/HOMEPATH if it points to Windows' system directory
Internally, Git expects the environment variable `HOME` to be set, and
to point to the current user's home directory.

This environment variable is not set by default on Windows, and
therefore Git tries its best to construct one if it finds `HOME` unset.

There are actually two different approaches Git tries: first, it looks
at `HOMEDRIVE`/`HOMEPATH` because this is widely used in corporate
environments with roaming profiles, and a user generally wants their
global Git settings to be in a roaming profile.

Only when `HOMEDRIVE`/`HOMEPATH` is either unset or does not point to a
valid location, Git will fall back to using `USERPROFILE` instead.

However, starting with Windows Vista, for secondary logons and services,
the environment variables `HOMEDRIVE`/`HOMEPATH` point to Windows'
system directory (usually `C:\Windows\system32`).

That is undesirable, and that location is usually write-protected anyway.

So let's verify that the `HOMEDRIVE`/`HOMEPATH` combo does not point to
Windows' system directory before using it, falling back to `USERPROFILE`
if it does.

This fixes git-for-windows#2709

Initial-Path-by: Ivan Pozdeev <vano@mail.mipt.ru>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:18 +01:00
Jeff Hostetler
807ffc67e0 clink.pl: ignore no-stack-protector arg on MSVC=1 builds
Ignore the `-fno-stack-protector` compiler argument when building
with MSVC.  This will be used in a later commit that needs to build
a Win32 GUI app.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2026-02-02 18:10:18 +01:00
Johannes Schindelin
d1d783f9b2 mingw: allow git.exe to be used instead of the "Git wrapper"
Git for Windows wants to add `git.exe` to the users' `PATH`, without
cluttering the latter with unnecessary executables such as `wish.exe`.
To that end, it invented the concept of its "Git wrapper", i.e. a tiny
executable located in `C:\Program Files\Git\cmd\git.exe` (originally a
CMD script) whose sole purpose is to set up a couple of environment
variables and then spawn the _actual_ `git.exe` (which nowadays lives in
`C:\Program Files\Git\mingw64\bin\git.exe` for 64-bit, and the obvious
equivalent for 32-bit installations).

Currently, the following environment variables are set unless already
initialized:

- `MSYSTEM`, to make sure that the MSYS2 Bash and the MSYS2 Perl
  interpreter behave as expected, and

- `PLINK_PROTOCOL`, to force PuTTY's `plink.exe` to use the SSH
  protocol instead of Telnet,

- `PATH`, to make sure that the `bin` folder in the user's home
  directory, as well as the `/mingw64/bin` and the `/usr/bin`
  directories are included. The trick here is that the `/mingw64/bin/`
  and `/usr/bin/` directories are relative to the top-level installation
  directory of Git for Windows (which the included Bash interprets as
  `/`, i.e. as the MSYS pseudo root directory).

Using the absence of `MSYSTEM` as a tell-tale, we can detect in
`git.exe` whether these environment variables have been initialized
properly. Therefore we can call `C:\Program Files\Git\mingw64\bin\git`
in-place after this change, without having to call Git through the Git
wrapper.

Obviously, above-mentioned directories must be _prepended_ to the `PATH`
variable, otherwise we risk picking up executables from unrelated Git
installations. We do that by constructing the new `PATH` value from
scratch, appending `$HOME/bin` (if `HOME` is set), then the MSYS2 system
directories, and then appending the original `PATH`.

Side note: this modification of the `PATH` variable is independent of
the modification necessary to reach the executables and scripts in
`/mingw64/libexec/git-core/`, i.e. the `GIT_EXEC_PATH`. That
modification is still performed by Git, elsewhere, long after making the
changes described above.

While we _still_ cannot simply hard-link `mingw64\bin\git.exe` to `cmd`
(because the former depends on a couple of `.dll` files that are only in
`mingw64\bin`, i.e. calling `...\cmd\git.exe` would fail to load due to
missing dependencies), at least we can now avoid that extra process of
running the Git wrapper (which then has to wait for the spawned
`git.exe` to finish) by calling `...\mingw64\bin\git.exe` directly, via
its absolute path.

Testing this is in Git's test suite tricky: we set up a "new" MSYS
pseudo-root and copy the `git.exe` file into the appropriate location,
then verify that `MSYSTEM` is set properly, and also that the `PATH` is
modified so that scripts can be found in `$HOME/bin`, `/mingw64/bin/`
and `/usr/bin/`.

This addresses https://github.com/git-for-windows/git/issues/2283

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:18 +01:00
Jeff Hostetler
2e2f698342 config.mak.uname: add git.rc to MSVC builds
Teach MSVC=1 builds to depend on the `git.rc` file so that
the resulting executables have Windows-style resources and
version number information within them.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2026-02-02 18:10:18 +01:00
Jeff Hostetler
3c3cd2b517 vcbuild: add support for compiling Windows resource files
Create a wrapper for the Windows Resource Compiler (RC.EXE)
for use by the MSVC=1 builds. This is similar to the CL.EXE
and LIB.EXE wrappers used for the MSVC=1 builds.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2026-02-02 18:10:18 +01:00
Jeff Hostetler
2776758034 Makefile: clean up .ilk files when MSVC=1
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2026-02-02 18:10:18 +01:00
Jeff Hostetler
3236403d93 clink.pl: fix libexpatd.lib link error when using MSVC
When building with `make MSVC=1 DEBUG=1`, link to `libexpatd.lib`
rather than `libexpat.lib`.

It appears that the `vcpkg` package for "libexpat" has changed and now
creates `libexpatd.lib` for debug mode builds.  Previously, both debug
and release builds created a ".lib" with the same basename.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
2026-02-02 18:10:18 +01:00
Johannes Schindelin
634b97810d Merge branch 'dscho-avoid-d-f-conflict-in-vs-master'
Merge this early to resolve merge conflicts early.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:18 +01:00
Johannes Schindelin
47d7ce745f max_tree_depth: lower it for clang builds in general on Windows
In 436a42215e (max_tree_depth: lower it for clangarm64 on Windows,
2025-04-23), I provided a work-around for a nasty issue with clangarm
builds, where the stack is exhausted before the maximal tree depth is
reached, and the resulting error cannot easily be handled by Git
(because it would require Windows-specific handling).

Turns out that this is not at all limited to ARM64. In my tests with
CLANG64 in MSYS2 on the GitHub Actions runners, the test t6700.4 failed
in the exact same way. What's worse: The limit needs to be quite a bit
lower for x86_64 than for aarch64. In aforementioned tests, the breaking
point was 1232: With 1231 it still worked as expected, with 1232 it
would fail with the `STATUS_STACK_OVERFLOW` incorrectly mapped to exit
code 127. For comparison, in my tests on GitHub Actions' Windows/ARM64
runners, the breaking point was 1439 instead.

Therefore the condition needs to be adapted once more, to accommodate
(with some safety margin) both aarch64 and x86_64 in clang-based builds
on Windows, to let that test pass.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
505d490b5c windows: skip linking git-<command> for built-ins
It is merely a historical wart that, say, `git-commit` exists in the
`libexec/git-core/` directory, a tribute to the original idea to let Git
be essentially a bunch of Unix shell scripts revolving around very few
"plumbing" (AKA low-level) commands.

Git has evolved a lot from there. These days, most of Git's
functionality is contained within the `git` executable, in the form of
"built-in" commands.

To accommodate for scripts that use the "dashed" form of Git commands,
even today, Git provides hard-links that make the `git` executable
available as, say, `git-commit`, just in case that an old script has not
been updated to invoke `git commit`.

Those hard-links do not come cheap: they take about half a minute for
every build of Git on Windows, they are mistaken for taking up huge
amounts of space by some Windows Explorer versions that do not
understand hard-links, and therefore many a "bug" report had to be
addressed.

The "dashed form" has been officially deprecated in Git version 1.5.4,
which was released on February 2nd, 2008, i.e. a very long time ago.
This deprecation was never finalized by skipping these hard-links, but
we can start the process now, in Git for Windows.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
56d23020de mingw: ensure valid CTYPE
A change between versions 2.4.1 and 2.6.0 of the MSYS2 runtime modified
how Cygwin's runtime (and hence Git for Windows' MSYS2 runtime
derivative) handles locales: d16a56306d (Consolidate wctomb/mbtowc calls
for POSIX-1.2008, 2016-07-20).

An unintended side-effect is that "cold-calling" into the POSIX
emulation will start with a locale based on the current code page,
something that Git for Windows is very ill-prepared for, as it expects
to be able to pass a command-line containing non-ASCII characters to the
shell without having those characters munged.

One symptom of this behavior: when `git clone` or `git fetch` shell out
to call `git-upload-pack` with a path that contains non-ASCII
characters, the shell tried to interpret the entire command-line
(including command-line parameters) as executable path, which obviously
must fail.

This fixes https://github.com/git-for-windows/git/issues/1036

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
58719bb028 mingw: always define ETC_* for MSYS2 environments
Special-casing even more configurations simply does not make sense.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
222947b4fa mingw: rely on MSYS2's metadata instead of hard-coding it
MSYS2 defines some helpful environment variables, e.g. `MSYSTEM`. There
is code in Git for Windows to ensure that that `MSYSTEM` variable is
set, hard-coding a default.

However, the existing solution jumps through hoops to reconstruct the
proper default, and is even incomplete doing so, as we found out when we
extended it to support CLANGARM64.

This is absolutely unnecessary because there is already a perfectly
valid `MSYSTEM` value we can use at build time. This is even true when
building the MINGW32 variant on a MINGW64 system because `makepkg-mingw`
will override the `MSYSTEM` value as per the `MINGW_ARCH` array.

The same is equally true for the `/mingw64`, `/mingw32` and
`/clangarm64` prefix: those values are already available via the
`MINGW_PREFIX` environment variable, and we just need to pass that
setting through.

Only when `MINGW_PREFIX` is not set (as is the case in Git for Windows'
minimal SDK, where only `MSYSTEM` is guaranteed to be set correctly), we
use as fall-back the top-level directory whose name is the down-cased
value of the `MSYSTEM` variable.

Incidentally, this also broadens the support to all the configurations
supported by the MSYS2 project, i.e. clang64 & ucrt64, too.

Note: This keeps the same, hard-coded MSYSTEM platform support for CMake
as before, but drops it for Meson (because it is unclear how Meson could
do this in a more flexible manner).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
4bf941968a mingw: only enable the MSYS2-specific stuff when compiling in MSYS2
The tell-tale is the presence of the `MSYSTEM` value while compiling, of
course. In that case, we want to ensure that `MSYSTEM` is set when
running `git.exe`, and also enable the magic MSYS2 tty detection.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
298ff81724 mingw: set the prefix and HOST_CPU as per MSYS2's settings
MSYS2 already defines a couple of helpful environment variables, and we
can use those to infer the installation location as well as the CPU. No
need for hard-coding ;-)

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
10bfa90252 mingw: avoid over-specifying --pic-executable
In bf2d5d8239 (Don't let ld strip relocations, 2016-01-16) (picked from
https://github.com/git-for-windows/git/pull/612/commits/6a237925bf10),
Git for Windows introduced the `-Wl,-pic-executable` flag, specifying
the exact entry point via `-e`. This required discerning between i686
and x86_64 code because the former required the symbol to be prefixed
with an underscore, the latter did not.

As per https://sourceware.org/bugzilla/show_bug.cgi?id=10865, the
specified symbols are already the default, though.

So let's drop the overly-specific definition.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
5dfb8d9b26 mingw: only use -Wl,--large-address-aware for 32-bit builds
That option only matters there, and is in fact only really understood in
those builds; UCRT64 versions of GCC, for example, do not know what to
do with that option.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
ee99a7ccca mingw: drop the -D_USE_32BIT_TIME_T option
This option was added in fa93bb20d7 (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
https://github.com/msys2/MINGW-packages/pull/26470 for details.

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

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Johannes Schindelin
4e98b9b849 mingw: stop hard-coding CC = gcc
This is no longer true in general, not with supporting Clang out of the
box.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:17 +01:00
Andrey Zabavnikov
be899febc5 status: fix for old-style submodules with commondir
In f9b7573f6b (repository: free fields before overwriting them,
2017-09-05), Git was taught to release memory before overwriting it, but
357a03ebe9 (repository.c: move env-related setup code back to
environment.c, 2018-03-03) changed the code so that it would not
_always_ be overwritten.

As a consequence, the `commondir` attribute would point to
already-free()d memory.

This seems not to cause problems in core Git, but there are add-on
patches in Git for Windows where the `commondir` attribute is
subsequently used and causing invalid memory accesses e.g. in setups
containing old-style submodules (i.e. the ones with a `.git` directory
within theirs worktrees) that have `commondir` configured.

This fixes https://github.com/git-for-windows/git/pull/4083.

Signed-off-by: Andrey Zabavnikov <zabavnikov@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:16 +01:00
Kiel Hurley
be3c3d7372 Fix Windows version resources
Add FileVersion, which is a required field
As not all required fields were present, none were being included
Fixes #4090

Signed-off-by: Kiel Hurley <kielhurley@gmail.com>
2026-02-02 18:10:16 +01:00
Matthias Aßhauer
a21822501e MinGW: link as terminal server aware
Whith Windows 2000, Microsoft introduced a flag to the PE header to mark executables as
"terminal server aware". Windows terminal servers provide a redirected Windows directory and
redirected registry hives when launching legacy applications without this flag set. Since we
do not use any INI files in the Windows directory and don't write to the registry, we don't
need  this additional preparation. Telling the OS that we don't need this should provide
slightly improved startup times in terminal server environments.

When building for supported Windows Versions with MSVC the /TSAWARE linker flag is
automatically set, but MinGW requires us to set the --tsaware flag manually.

This partially addresses https://github.com/git-for-windows/git/issues/3935.

Signed-off-by: Matthias Aßhauer <mha1993@live.de>
2026-02-02 18:10:16 +01:00
Johannes Schindelin
e3bb377fb1 mingw: change core.fsyncObjectFiles = 1 by default
From the documentation of said setting:

	This boolean will enable fsync() when writing object files.

	This is a total waste of time and effort on a filesystem that
	orders data writes properly, but can be useful for filesystems
	that do not use journalling (traditional UNIX filesystems) or
	that only journal metadata and not file contents (OS X’s HFS+,
	or Linux ext3 with "data=writeback").

The most common file system on Windows (NTFS) does not guarantee that
order, therefore a sudden loss of power (or any other event causing an
unclean shutdown) would cause corrupt files (i.e. files filled with
NULs). Therefore we need to change the default.

Note that the documentation makes it sound as if this causes really bad
performance. In reality, writing loose objects is something that is done
only rarely, and only a handful of files at a time.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:16 +01:00
孙卓识
d3c2c74d84 Add config option windows.appendAtomically
Atomic append on windows is only supported on local disk files, and it may
cause errors in other situations, e.g. network file system. If that is the
case, this config option should be used to turn atomic append off.

Co-Authored-By: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: 孙卓识 <sunzhuoshi@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:16 +01:00
Christopher Degawa
0150490358 winansi: check result and Buffer before using Name
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>
2026-02-02 18:10:16 +01:00
Rafael Kitover
01fd0c63c0 mingw: $env:TERM="xterm-256color" for newer OSes
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
29a3963484 (Win32: patch Windows environment on startup, 2012-01-15).

See git-for-windows/git#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>
2026-02-02 18:10:16 +01:00
Derrick Stolee
d27654c585 compat/mingw.c: do not warn when failing to get owner
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>
2026-02-02 18:10:15 +01:00
Philip Oakley
12e8ed0f18 hash-object: add a >4GB/LLP64 test case using filtered input
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>
2026-02-02 18:10:15 +01:00
Philip Oakley
47c7ebc010 CMake: show Win32 and Generator_platform build-option values
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>
2026-02-02 18:10:15 +01:00
Derrick Stolee
2a1b51df93 setup: properly use "%(prefix)/" when in WSL
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
2026-02-02 18:10:15 +01:00
Philip Oakley
75438ded8b hash-object: add another >4GB/LLP64 test case
To complement the `--stdin` and `--literally` test cases that verify
that we can hash files larger than 4GB on 64-bit platforms using the
LLP64 data model, here is a test case that exercises `hash-object`
_without_ any options.

Just as before, we use the `big` file from the previous test case if it
exists to save on setup time, otherwise generate it.

Signed-off-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:15 +01:00
Philip Oakley
ea977e73fb CMakeLists: add default "x64-windows" arch for Visual Studio
In Git-for-Windows, work on using ARM64 has progressed. The
commit 2d94b77b27 (cmake: allow building for Windows/ARM64, 2020-12-04)
failed to notice that /compat/vcbuild/vcpkg_install.bat will default to
using the "x64-windows" architecture for the vcpkg installation if not set,
but CMake is not told of this default. Commit 635b6d99b3 (vcbuild: install
ARM64 dependencies when building ARM64 binaries, 2020-01-31) later updated
vcpkg_install.bat to accept an arch (%1) parameter, but retained the default.

This default is neccessary for the use case where the project directory is
opened directly in Visual Studio, which will find and build a CMakeLists.txt
file without any parameters, thus expecting use of the default setting.

Also Visual studio will generate internal .sln solution and .vcxproj project
files needed for some extension tools. Inform users of the additional
.sln/.vcxproj generation.

** How to test:
 rm -rf '.vs' # remove old visual studio settings
 rm -rf 'compat/vcbuild/vcpkg' # remove any vcpkg downloads
 rm -rf 'contrib/buildsystems/out' # remove builds & CMake artifacts
 with a fresh Visual Studio Community Edition, File>>Open>>(git *folder*)
   to load the project (which will take some time!).
 check for successful compilation.
The implicit .sln (etc.) are in the hidden .vs directory created by
Visual Studio.

Signed-off-by: Philip Oakley <philipoakley@iee.email>
2026-02-02 18:10:15 +01:00
Philip Oakley
ba32090f42 hash-object --stdin: verify that it works with >4GB/LLP64
Just like the `hash-object --literally` code path, the `--stdin` code
path also needs to use `size_t` instead of `unsigned long` to represent
memory sizes, otherwise it would cause problems on platforms using the
LLP64 data model (such as Windows).

To limit the scope of the test case, the object is explicitly not
written to the object store, nor are any filters applied.

The `big` file from the previous test case is reused to save setup time;
To avoid relying on that side effect, it is generated if it does not
exist (e.g. when running via `sh t1007-*.sh --long --run=1,41`).

Signed-off-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:15 +01:00
Philip Oakley
c980bcf324 .gitignore: add Visual Studio CMakeSetting.json file
The CMakeSettings.json file is tool generated. Developers may track it
should they provide additional settings.

Signed-off-by: Philip Oakley <philipoakley@iee.email>
2026-02-02 18:10:15 +01:00
Philip Oakley
141c37bdc9 hash algorithms: use size_t for section lengths
Continue walking the code path for the >4GB `hash-object --literally`
test to the hash algorithm step for LLP64 systems.

This patch lets the SHA1DC code use `size_t`, making it compatible with
LLP64 data models (as used e.g. by Windows).

The interested reader of this patch will note that we adjust the
signature of the `git_SHA1DCUpdate()` function without updating _any_
call site. This certainly puzzled at least one reviewer already, so here
is an explanation:

This function is never called directly, but always via the macro
`platform_SHA1_Update`, which is usually called via the macro
`git_SHA1_Update`. However, we never call `git_SHA1_Update()` directly
in `struct git_hash_algo`. Instead, we call `git_hash_sha1_update()`,
which is defined thusly:

    static void git_hash_sha1_update(git_hash_ctx *ctx,
                                     const void *data, size_t len)
    {
        git_SHA1_Update(&ctx->sha1, data, len);
    }

i.e. it contains an implicit downcast from `size_t` to `unsigned long`
(before this here patch). With this patch, there is no downcast anymore.

With this patch, finally, the t1007-hash-object.sh "files over 4GB hash
literally" test case is fixed.

Signed-off-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:15 +01:00
Philip Oakley
b756394d62 object-file.c: use size_t for header lengths
Continue walking the code path for the >4GB `hash-object --literally`
test. The `hash_object_file_literally()` function internally uses both
`hash_object_file()` and `write_object_file_prepare()`. Both function
signatures use `unsigned long` rather than `size_t` for the mem buffer
sizes. Use `size_t` instead, for LLP64 compatibility.

While at it, convert those function's object's header buffer length to
`size_t` for consistency. The value is already upcast to `uintmax_t` for
print format compatibility.

Note: The hash-object test still does not pass. A subsequent commit
continues to walk the call tree's lower level hash functions to identify
further fixes.

Signed-off-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:15 +01:00
Philip Oakley
67e7b9480b hash-object: demonstrate a >4GB/LLP64 problem
On LLP64 systems, such as Windows, the size of `long`, `int`, etc. is
only 32 bits (for backward compatibility). Git's use of `unsigned long`
for file memory sizes in many places, rather than size_t, limits the
handling of large files on LLP64 systems (commonly given as `>4GB`).

Provide a minimum test for handling a >4GB file. The `hash-object`
command, with the  `--literally` and without `-w` option avoids
writing the object, either loose or packed. This avoids the code paths
hitting the `bigFileThreshold` config test code, the zlib code, and the
pack code.

Subsequent patches will walk the test's call chain, converting types to
`size_t` (which is larger in LLP64 data models) where appropriate.

Signed-off-by: Philip Oakley <philipoakley@iee.email>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:15 +01:00
Victoria Dye
79b84ada96 ci: run contrib/subtree tests in CI builds
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>
2026-02-02 18:10:14 +01:00
Pascal Muller
278adc237e http: optionally send SSL client certificate
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 https://github.com/git-for-windows/git/issues/3292

Signed-off-by: Pascal Muller <pascalmuller@gmail.com>
2026-02-02 18:10:14 +01:00
Johannes Schindelin
38ab1f0b07 compat/vcbuild: document preferred way to build in Visual Studio
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>
2026-02-02 18:10:14 +01:00
Johannes Schindelin
7f53a0b2d7 mingw: allow for longer paths in parse_interpreter()
As reported in https://github.com/newren/git-filter-repo/pull/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>
2026-02-02 18:10:14 +01:00
Dennis Ameling
979a842f0d cmake(): allow setting HOST_CPU for cross-compilation
Git's regular Makefile mentions that HOST_CPU should be defined when cross-compiling Git: 37796bca76/Makefile (L438-L439)

This is then used to set the GIT_HOST_CPU variable when compiling Git: 37796bca76/Makefile (L1337-L1341)

Then, when the user runs `git version --build-options`, it returns that value: 37796bca76/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>
2026-02-02 18:10:14 +01:00
Dennis Ameling
39d8a15ee6 Add schannel to curl installation
Signed-off-by: Dennis Ameling <dennis@dennisameling.com>
2026-02-02 18:10:14 +01:00
Philip Oakley
2cf4567e90 CMake: default Visual Studio generator has changed
Correct some wording and inform users regarding the Visual Studio
changes (from V16.6) to the default generator.

Subsequent commits ensure that Git for Windows can be directly
opened in modern Visual Studio without needing special configuration
of the CMakeLists settings.

It appeares that internally Visual Studio creates it's own version of the
.sln file (etc.) for extension tools that expect them.

The large number of references below document the shifting of Visual Studio
default and CMake setting options.

refs: https://docs.microsoft.com/en-us/search/?scope=C%2B%2B&view=msvc-150&terms=Ninja

1. https://docs.microsoft.com/en-us/cpp/linux/cmake-linux-configure?view=msvc-160
(note the linux bit)
 "In Visual Studio 2019 version 16.6 or later ***, Ninja is the default
generator for configurations targeting a remote system or WSL. For more
information, see this post on the C++ Team Blog
[https://devblogs.microsoft.com/cppblog/linux-development-with-visual-studio-first-class-support-for-gdbserver-improved-build-times-with-ninja-and-updates-to-the-connection-manager/].

For more information about these settings, see CMakeSettings.json reference
[https://docs.microsoft.com/en-us/cpp/build/cmakesettings-reference?view=msvc-160]."

2. https://docs.microsoft.com/en-us/cpp/build/cmake-presets-vs?view=msvc-160
"CMake supports two files that allow users to specify common configure,
build, and test options and share them with others: CMakePresets.json
and CMakeUserPresets.json."

" Both files are supported in Visual Studio 2019 version 16.10 or later.
***"
3. https://devblogs.microsoft.com/cppblog/linux-development-with-visual-studio-first-class-support-for-gdbserver-improved-build-times-with-ninja-and-updates-to-the-connection-manager/
" Ninja has been the default generator (underlying build system) for
CMake configurations targeting Windows for some time***, but in Visual
Studio 2019 version 16.6 Preview 3*** we added support for Ninja on Linux."

4. https://docs.microsoft.com/en-us/cpp/build/cmakesettings-reference?view=msvc-160
" `generator`: specifies CMake generator to use for this configuration.
May be one of:

    Visual Studio 2019 only:
        Visual Studio 16 2019
        Visual Studio 16 2019 Win64
        Visual Studio 16 2019 ARM

    Visual Studio 2017 and later:
        Visual Studio 15 2017
        Visual Studio 15 2017 Win64
        Visual Studio 15 2017 ARM
        Visual Studio 14 2015
        Visual Studio 14 2015 Win64
        Visual Studio 14 2015 ARM
        Unix Makefiles
        Ninja

Because Ninja is designed for fast build speeds instead of flexibility
and function, it is set as the default. However, some CMake projects may
be unable to correctly build using Ninja. If this occurs, you can
instruct CMake to generate Visual Studio projects instead.

To specify a Visual Studio generator in Visual Studio 2017, open the
settings editor from the main menu by choosing CMake | Change CMake
Settings. Delete "Ninja" and type "V". This activates IntelliSense,
which enables you to choose the generator you want."

"To specify a Visual Studio generator in Visual Studio 2019, right-click
on the CMakeLists.txt file in Solution Explorer and choose CMake
Settings for project > Show Advanced Settings > CMake Generator.

When the active configuration specifies a Visual Studio generator, by
default MSBuild.exe is invoked with` -m -v:minimal` arguments."

5. https://docs.microsoft.com/en-us/cpp/build/cmake-presets-vs?view=msvc-160#enable-cmakepresetsjson-integration-in-visual-studio-2019
"Enable CMakePresets.json integration in Visual Studio 2019

CMakePresets.json integration isn't enabled by default in Visual Studio
2019. You can enable it for all CMake projects in Tools > Options >
CMake > General: (tick a box)" ... see more.

6. https://docs.microsoft.com/en-us/cpp/build/cmakesettings-reference?view=msvc-140
(whichever v140 is..)
"CMake projects are supported in Visual Studio 2017 and later."

7. https://docs.microsoft.com/en-us/cpp/overview/what-s-new-for-cpp-2017?view=msvc-150
"Support added for the CMake Ninja generator."

8. https://docs.microsoft.com/en-us/cpp/overview/what-s-new-for-cpp-2017?view=msvc-150#cmake-support-via-open-folder
"CMake support via Open Folder
Visual Studio 2017 introduces support for using CMake projects without
converting to MSBuild project files (.vcxproj). For more information,
see CMake projects in Visual
Studio[https://docs.microsoft.com/en-us/cpp/build/cmake-projects-in-visual-studio?view=msvc-150].
Opening CMake projects with Open Folder automatically configures the
environment for C++ editing, building, and debugging." ... +more!

9. https://docs.microsoft.com/en-us/cpp/build/cmake-presets-vs?view=msvc-160#supported-cmake-and-cmakepresetsjson-versions
"Visual Studio reads and evaluates CMakePresets.json and
CMakeUserPresets.json itself and doesn't invoke CMake directly with the
--preset option. So, CMake version 3.20 or later isn't strictly required
when you're building with CMakePresets.json inside Visual Studio. We
recommend using CMake version 3.14 or later."

10. https://docs.microsoft.com/en-us/cpp/build/cmake-presets-vs?view=msvc-160#enable-cmakepresetsjson-integration-in-visual-studio-2019
"If you don't want to enable CMakePresets.json integration for all CMake
projects, you can enable CMakePresets.json integration for a single
CMake project by adding a CMakePresets.json file to the root of the open
folder. You must close and reopen the folder in Visual Studio to
activate the integration.

11. https://docs.microsoft.com/en-us/cpp/build/cmake-presets-vs?view=msvc-160#default-configure-presets
***(doesn't actually say which version..)
"Default Configure Presets
If no CMakePresets.json or CMakeUserPresets.json file exists, or if
CMakePresets.json or CMakeUserPresets.json is invalid, Visual Studio
will fall back*** on the following default Configure Presets:

Windows example
JSON
{
  "name": "windows-default",
  "displayName": "Windows x64 Debug",
  "description": "Sets Ninja generator, compilers, x64 architecture,
build and install directory, debug build type",
  "generator": "Ninja",
  "binaryDir": "${sourceDir}/out/build/${presetName}",
  "architecture": {
    "value": "x64",
    "strategy": "external"
  },
  "cacheVariables": {
    "CMAKE_BUILD_TYPE": "Debug",
    "CMAKE_INSTALL_PREFIX": "${sourceDir}/out/install/${presetName}"
  },
  "vendor": {
    "microsoft.com/VisualStudioSettings/CMake/1.0": {
      "hostOS": [ "Windows" ]
    }
  }
},
"

Signed-off-by: Philip Oakley <philipoakley@iee.email>
2026-02-02 18:10:14 +01:00
Victoria Dye
7d91cd6d6a subtree: update contrib/subtree test target
The intention of this change is to align with how the top-level git
`Makefile` defines its own test target (which also internally calls
`$(MAKE) -C t/ all`). This change also ensures the consistency of
`make -C contrib/subtree test` with other testing in CI executions
(which rely on `$DEFAULT_TEST_TARGET` being defined as `prove`).

Signed-off-by: Victoria Dye <vdye@github.com>
2026-02-02 18:10:14 +01:00
Philip Oakley
81f3b95871 vcpkg_install: add comment regarding slow network connections
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>
2026-02-02 18:10:13 +01:00
Johannes Schindelin
9078dfd973 git-gui: accommodate for intent-to-add files
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 https://github.com/git-for-windows/git/issues/2779

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Pratyush Yadav <me@yadavpratyush.com>
2026-02-02 18:10:13 +01:00
Jens Glathe
3870ed72fe t0014: fix indentation
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>
2026-02-02 18:10:13 +01:00
Luke Bonanomi
b0660801ee commit: accept "scissors" with CR/LF line endings
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>
2026-02-02 18:10:13 +01:00
Dennis Ameling
73186ddbcc ci(vs-build) also build Windows/ARM64 artifacts
There are no Windows/ARM64 agents in GitHub Actions yet, therefore we
just skip adjusting the `vs-test` job for now.

Signed-off-by: Dennis Ameling <dennis@dennisameling.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2026-02-02 18:10:13 +01:00