Git only colours the output and uses pagination if isatty() returns 1.
MSys and Cygwin emulate pseudo terminals via named pipes, meaning that
isatty() returns 0.
Commit 3adef8de55 fixed this for MSys
terminals, but not Cygwin.
The named pipes that Cygwin and Msys use are very similar. MSys PTY pipes
are called 'msys-*-pty*' and Cygwin uses 'cygwin-*-pty*'. This commit
modifies the existing check to allow both MSys and Cygwin PTY pipes to be
identified as TTYs.
Note that Pagination is still broken on Cygwin. less.exe is spawned (as
seen in Process Explorer and using GIT_TRACE=1), but the output is not
being piped into it.
This partially fixes https://github.com/git-for-windows/git/issues/267
Signed-off-by: Alan Davies <alan.n.davies@gmail.com>
Windows 7 allows users to pin running applications to the task bar. By
setting the application ID, multiple processes can share a single task
bar entry, and this is exactly what we need for `git-bash.exe` which
wants to share the task bar entry with the `mintty.exe` instance it
launches.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
On Windows, a file name containing a colon is illegal. We should
therefore expect the corresponding errno when `fopen()` is called for a
path of the form <commit>:.gitattributes.
This fixes https://github.com/git-for-windows/git/issues/255.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Also mark the Git executable as compatible with Windows Vista or later
(at the time of writing, the latest version is Windows 10) because
otherwise the manifest would be ignored on Windows 8.1 or later.
This fixes https://github.com/git-for-windows/git/issues/258.
In Git for Windows 2.x' context, we technically do not need to embed the
<compatibility> section ourselves because MSys2's
mingw-w64-<arch>-windows-default-manifest package already contains it,
starting with version 6.4-2 (release on or after July 10th, 2015).
However, not all Git developers use MSys2 on Windows (doubtlessly in an
attempt to make the life of Git for Windows' maintainer harder than
necessary), therefore we still need to add that section explicitly.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The _POSIX_THREAD_SAFE_FUNCTIONS constant is supposed to be defined only
if flockfile() and friends are available. MinGW-w64 defines that
constant, but the functions are not available. Work around that.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
It is better to state clearly expectations and intentions than to assume
quietly that everybody agrees.
This Code of Conduct is the Open Code of Conduct as per
http://todogroup.org/opencodeofconduct/ (the only modifications are the
adjustments to reflect that there is no "response team" in addition to the
Git for Windows maintainer, and the addition of the link to the Open Code
of Conduct itself).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This branch introduces support for reading the "Windows-wide" Git
configuration from `%PROGRAMDATA%\Git\config`. As these settings are
intended to be shared between *all* Git-related software, that config
file takes an even lower precedence than `$(prefix)/etc/gitconfig`.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This topic branch adds the --command=<command> option that allows
starting the Git Bash (or Git CMD) with different terminal emulators
than the one encoded via embedded string resources.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Use msysGit's `git-wrapper` instead of the builtins. This works around
two issues:
- when the file system does not allow hard links, we would waste over
800 megabyte by having 109 copies of a multi-megabyte executable
- even when the file system allows hard links, the Windows Explorer
counts the disk usage as if it did not. Many users complained about
Git for Windows using too much space (when it actually did not). We
can easily avoid those user complaints by merging this branch.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This was originally 'pull request #330 from ethomson/poll_inftim' in
msysgit/git.
poll: honor the timeout on Win32
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
These fixes were necessary for Sverre Rabbelier's remote-hg to work,
but for some magic reason they are not necessary for the current
remote-hg. Makes you wonder how that one gets away with it.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Between the libgit2 and the Git for Windows project, there has been a
discussion how we could share Git configuration to avoid duplication (or
worse: skew).
Earlier, libgit2 was nice enough to just re-use Git for Windows'
C:\Program Files (x86)\Git\etc\gitconfig
but with the upcoming Git for Windows 2.x, there would be more paths to
search, as we will have 64-bit and 32-bit versions, and the
corresponding config files will be in %PROGRAMFILES%\Git\mingw64\etc and
...\mingw32\etc, respectively.
Worse: there are portable Git for Windows versions out there which live
in totally unrelated directories, still.
Therefore we came to a consensus to use `%PROGRAMDATA%\Git\config` as the
location for shared Git settings that are of wider interest than just Git
for Windows.
On XP, there is no %PROGRAMDATA%, therefore we need to use
"%ALLUSERSPROFILE%\Application Data\Git\config" in those setups.
Of course, the configuration in `%PROGRAMDATA%\Git\config` has the
widest reach, therefore it must take the lowest precedence, i.e. Git for
Windows can still override settings in its `etc/gitconfig` file.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
'git config' (--add / --unset etc.) automatically creates missing config
files. However, it fails with a misleading error message "could not lock
config file" if the parent directory doesn't exist.
Also create missing parent directories.
This is particularly important when calling
git config -f /non/existing/directory/config ...
Signed-off-by: Karsten Blees <blees@dcon.de>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The idea of `git-bash.exe` automatically running the Git Bash in the
home directory was to support the start menu item `Git Bash` (which
should not start in C:\Program Files\Git, but in $HOME), and to make
that behavior consistent with double-clicking in `git-bash.exe`
portable Git.
However, it turns out that one of the main use cases of portable Git is
to run the Git Bash in GitHub for Windows, and it should start in the
top-level directory of a given project. Therefore, the concern to keep
double-clicking `git-bash.exe` consistent with the start menu item was
actually unfounded.
As to the start menu item: it can easily be changed to launch
`git-bash.exe` with a command-line option. So let's introduce the
--cd-to-home option for that purpose.
As a bonus, the Git wrapper can now also serve as a drop-in redirector
/bin/bash.exe to provide backwards-compatibility of Git for Windows 2.x
with 1.x: some 3rd-party software expects to find that executable there,
and it also expects it to leave the working directory unchanged.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
By embedding string resources into the Git wrapper executable, it
can be configured to execute custom commands (after setting up the
environment in the way required for Git for Windows to work properly).
This feature is used e.g. for `git-bash.exe` which launches a Bash in
the configured terminal window.
Here, we introduce command-line options to override those string
resources. That way, a user can call `git-bash.exe` (which is a copy of
the Git wrapper with `usr\bin\bash.exe --login -i` embedded as string
resource) with command-line options that will override what command is
run.
ConEmu, for example, might want to call
...\git-bash.exe --needs-console --no-hide --minimal-search-path ^
--command=usr\\bin\\bash.exe --login -i
In particular, the following options are supported now:
--command=<command-line>::
Executes `<command-line>` instead of the embedded string resource
--[no-]minimal-search-path::
Ensures that only `/cmd/` is added to the `PATH` instead of
`/mingw??/bin` and `/usr/bin/`, or not
--[no-]needs-console::
Ensures that there is a Win32 console associated with the spawned
process, or not
--[no-]hide::
Hides the console window, or not
Helped-by: Eli Young <elyscape@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
We will enhance the function in the next commit to support @@VAR@@
expansion in the upcoming `--command=<command>` option.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The contract for the stat() and lstat() function is:
> stat(): stats the file pointed to by path and fills in buf.
> lstat(): is identical to stat(), except that if path is a symbolic link,
> then the link itself is stat-ed, not the file that it refers to.
stat() should always return the statistics of the file or directory a
symbolic link is pointing to. The lstat() function is used to get the
stats for the symlink. Hence the check should not be there.
Signed-off-by: Loris Chiocca <loris@chiocca.ch>
This is needed so that `_wchdir()` can be used with drive root
directories, e.g. C:\ (`_wchdir("C:")` fails to switch the directory
to the root directory).
This fixes https://github.com/msysgit/git/issues/359 (in Git for Windows
2.x only, though).
Likewise, `readlink()`'s semantics require a trailing slash for symbolic
links pointing to directories. Otherwise all checked out symbolic links
pointing to directories would be marked as modified even directly after a
fresh clone.
This fixes https://github.com/git-for-windows/git/issues/210
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The SVN library doesn't seem to support symlinks, even if symlinks are
enabled in MSys and Git. Use 'cp' instead of 'ln -s'.
Signed-off-by: Karsten Blees <blees@dcon.de>
Symlinks on Windows have a flag that indicates whether the target is a file
or a directory. Symlinks of wrong type simply don't work. This even affects
core Win32 APIs (e.g. DeleteFile() refuses to delete directory symlinks).
However, CreateFile() with FILE_FLAG_BACKUP_SEMANTICS doesn't seem to care.
Check the target type by first creating a tentative file symlink, opening
it, and checking the type of the resulting handle. If it is a directory,
recreate the symlink with the directory flag set.
It is possible to create symlinks before the target exists (or in case of
symlinks to symlinks: before the target type is known). If this happens,
create a tentative file symlink and postpone the directory decision: keep
a list of phantom symlinks to be processed whenever a new directory is
created in mingw_mkdir().
Limitations: This algorithm may fail if a link target changes from file to
directory or vice versa, or if the target directory is created in another
process.
Signed-off-by: Karsten Blees <blees@dcon.de>
Implement symlink() that always creates file symlinks. Fails with ENOSYS
if symlinks are disabled or unsupported.
Note: CreateSymbolicLinkW() was introduced with symlink support in Windows
Vista. For compatibility with Windows XP, we need to load it dynamically
and fail gracefully if it isnt's available.
Signed-off-by: Karsten Blees <blees@dcon.de>
Implement readlink() by reading NTFS reparse points. Works for symlinks
and directory junctions. If symlinks are disabled, fail with ENOSYS.
Signed-off-by: Karsten Blees <blees@dcon.de>
If symlinks are enabled, resolve all symlinks when changing directories,
as required by POSIX.
Note: Git's real_path() function bases its link resolution algorithm on
this property of chdir(). Unfortunately, the current directory on Windows
is limited to only MAX_PATH (260) characters. Therefore using symlinks and
long paths in combination may be problematic.
Note: GetFinalPathNameByHandleW() was introduced with symlink support in
Windows Vista. Thus, for compatibility with Windows XP, we need to load it
dynamically and behave gracefully if it isnt's available.
Signed-off-by: Karsten Blees <blees@dcon.de>
MSVCRT's _wrename() cannot rename symlinks over existing files: it returns
success without doing anything. Newer MSVCR*.dll versions probably do not
have this problem: according to CRT sources, they just call MoveFileEx()
with the MOVEFILE_COPY_ALLOWED flag.
Get rid of _wrename() and call MoveFileEx() with proper error handling.
Signed-off-by: Karsten Blees <blees@dcon.de>
_wunlink() / DeleteFileW() refuses to delete symlinks to directories. If
_wunlink() fails with ERROR_ACCESS_DENIED, try _wrmdir() as well.
Signed-off-by: Karsten Blees <blees@dcon.de>
Symlinks on Windows don't work the same way as on Unix systems. E.g. there
are different types of symlinks for directories and files, creating
symlinks requires administrative privileges etc.
By default, disable symlink support on Windows. I.e. users explicitly have
to enable it with 'git config [--system|--global] core.symlinks true'.
The test suite ignores system / global config files. Allow testing *with*
symlink support by checking if native symlinks are enabled in MSys2 (via
'MSYS=winsymlinks:nativestrict').
Reminder: This would need to be changed if / when we find a way to run the
test suite in a non-MSys-based shell (e.g. dash).
Signed-off-by: Karsten Blees <blees@dcon.de>
