With MSys2, there is actually an implementation of mkfifo available. The
only problem is that it is only emulating named pipes through the MSys2
runtime; The Win32 API has no idea about named pipes, hence the Git
executable cannot access those pipes either.
The symptom is that Git fails with a '<name>: No such file or directory'
because MSys2 emulates named pipes through special-crafted '.lnk' files.
The solution is to tell the test suite explicitly that we cannot use
named pipes when we want to test a MinGW Git.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
MSys2 actually allows to create files or directories whose names contain
tabs, newlines or colors, even if plain Win32 API cannot access them.
As we are using an MSys2 bash to run the tests, such files or
directories are created successfully, but Git has no chance to work with
them because it is a regular Windows program, hence limited by the Win32
API.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
With MSys2, the "TZ" environment variable gets filtered out when calling
non-MSys2 executables. The reason is that Windows' time zone handling is
substantially different from the POSIX one.
However, we just taught Git for Windows' fork of the MSys2 runtime to
pass on the timezone in a different environment variable, MSYS2_TZ for
the sole purpose of Git being able to reinterpret it correctly.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The unsetenv code has no idea to update our environ_size, therefore
causing segmentation faults when environment variables are removed
without compat/mingw.c's knowing (MinGW's optimized lookup would try
to strcmp() against NULL in such a case).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
It does not quite work because it produces DOS line endings which the
shell does not like at all.
This lets t3406, t3903, t4254, t7400, t7401, t7406 and t7407 pass.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This just makes things compile, the test suite needs extra tender loving
care in addition to this change. We will address these issues in later
commits.
While at it, also allow building MSys2 Git (i.e. a Git that uses MSys2's
POSIX emulation layer).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Git for Windows lags a little bit behind with the 2.x releases because
the Git for Windows developers wanted to let that big jump coincide with
a well-needed overhaul of the context within which Git for Windows is
developed.
To understand why this is such a big issue, it needs to be noted that
many parts of Git are not written in portable C, but instead relies on a
POSIX shell and Perl to be available. Even in the portable C part, there
is the ingrained notion that we can work with UTF-8 encoded strings.
To support the scripts, Git for Windows has to ship a minimal POSIX
emulation layer with Bash and Perl thrown in, and when the Git for
Windows effort started originally, in August 2007, we settled on using
MSys, a stripped down version of Cygwin. Consequently, the original name
of the project was "msysGit" (which, sadly, caused a *lot* of confusion
because few Windows users know about MSys, and even less care).
To compile the C code of Git for Windows, we used MSys, too: it sports
an additional version of the GNU C Compiler that targets the plain
Win32 API (with a few convenience functions thrown in) instead of the
POSIX emulation layer that would require the MSys runtime to run the
compiled programs. That way, Git for Windows' executable(s) are really
just Win32 programs. To discern executables requiring the POSIX
emulation layer from the ones that do not, the latter are called MinGW
(Minimal GNU for Windows) when the former are called MSys executables.
This reliance on MSys incurred challenges, too, though: some of our
changes to the MSys runtime -- necessary to support Git for Windows
better -- were not accepted upstream, the MSys runtime was not developed
further to support e.g. UTF-8 or 64-bit, and apart from not having a
package management system until much later (when mingw-get was
introduced), many packages provided by the MSys/MinGW project lag behind
the respective source code versions, in particular Bash and OpenSSL. For
a while, the Git for Windows project tried to remedy the situation by
trying to build newer versions of those packages, but the situation
quickly became untenable, especially with problems like the Heartbleed
bug requiring swift action and Git for Windows contributors being scarce
-- despite millions of downloads suggesting that there are many users.
After a brief push in the direction of mingw-get, thanks to the
long-time contributor and co-maintainer Sebastian Schuberth, it became
clear that we need to look for alternatives.
Happily, in the meantime the MSys2 project (https://msys2.github.io/)
emerged, and was chosen to be the base of the Git for Windows 2.x. MSys2
is a rewrite of the spirit of MSys: it is again a stripped down version
of Cygwin, but it is actively kept up-to-date with Cygwin's source code.
Thereby, it already supports Unicode internally, and it also offers the
64-bit support that we yearned for since the beginning of the Git for
Windows project.
MSys2 also ported the Pacman package management system from Arch Linux
and uses it heavily. This brings the same convenience to which Linux
users are used to from `yum` or `apt-get`, and to which MacOSX users are
used to from Homebrew or MacPorts, or BSD users from the Ports system,
to MSys2: a simple `pacman -Syu` will update all installed packages to
the newest versions currently available.
MSys2 is also *very* active, typically providing package updates
multiple times per week.
It still required a two-month effort to bring everything to a state
where Git's test suite passes, and a couple of patches await their
submission to the respective upstream projects. Yet without MSys2, the
modernization of Git for Windows would simply not have happened.
This commit lays the ground work to supporting MSys2-based Git builds.
Assisted-by: Waldek Maleska <weakcamel@users.github.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
The excellent MSys2 project brings a substantially updated MinGW
environment including newer GCC versions and new headers. To support
compiling Git, let's special-case the new MinGW (tell-tale: the
_MINGW64_VERSION_MAJOR constant is defined).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
MSys2's strace facility is very useful for debugging... With this patch,
the bash will be executed through strace if the environment variable
GIT_STRACE_COMMANDS is set, which comes in real handy when investigating
issues in the test suite.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This way the libraries get properly installed into the "site_perl"
directory and we just have to move them out of the "mingw" directory.
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
On Windows, we would like to be able to have a default http.sslCAinfo
that points to an MSys path (i.e. relative to the installation root of
Git). As Git is a MinGW program, it has to handle the conversion
of the MSys path into a MinGW32 path itself.
Since system_path() considers paths starting with '/' as absolute, we
have to convince it to make a Windows path by stripping the leading
slash.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Empty (length 0) usernames and/or passwords, when saved in the Windows
Credential Manager, come back as null when reading the credential.
One use case for such empty credentials is with NTLM authentication, where
empty username and password instruct libcurl to authenticate using the
credentials of the currently logged-on user (single sign-on).
When locating the relevant credentials, make empty username match null.
When outputting the credentials, handle nulls correctly.
Signed-off-by: Jakub Bereżański <kuba@berezanscy.pl>
Make sure the helper does not crash when blank username and password is
provided. If the helper can save such credentials, it should be able to
read them back.
Signed-off-by: Jakub Bereżański <kuba@berezanscy.pl>
Git for Windows now ships with the new Git icon from git-scm.com. Use that
icon file if it exists instead of the old procedurally drawn one.
This patch was sent upstream but so far no decision on its inclusion was
made, so commit it to our fork.
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
On Windows, there are dramatic problems when a command line grows
beyond PATH_MAX, which is restricted to 8191 characters on XP and
later (according to http://support.microsoft.com/kb/830473).
Work around this by just cutting off the command line at that length
(actually, at a space boundary) in the hope that only negative
refs are chucked: gitk will then do unnecessary work, but that is
still better than flashing the gitk window and exiting with exit
status 5 (which no Windows user is able to make sense of).
The first fix caused Tcl to fail to compile the regexp, see msysGit issue
427. Here is another fix without using regexp, and using a more relaxed
command line length limit to fix the original issue 387.
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Make use of the new environment variable GIT_ASK_YESNO to support the
recently implemented fallback in case unlink, rename or rmdir fail for
files in use on Windows. The added dialog will present a yes/no question
to the the user which will currently be used by the windows compat layer
to let the user retry a failed file operation.
Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
This fixes a rebase in the presence of dirty submodules. This is
orthogonal to the application of patches changing submodules.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
With msysGit the .git directory is supposed to be hidden, unless it is
a bare git repository. Test this.
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
At least for cross-platform projects, it makes sense to hide the
files starting with a dot, as this is the behavior on Unix/MacOSX.
However, at least Eclipse has problems interpreting the hidden flag
correctly, so the default is to hide only the .git/ directory.
The config setting core.hideDotFiles therefore supports not only
'true' and 'false', but also 'dotGitOnly'.
[jes: clarified the commit message, made git init respect the setting
by marking the .git/ directory only after reading the config, and added
documentation, and rebased on top of current junio/next]
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
If we use 'eval exec $opt $cmdp $args' to execute git command,
tcl engine will convert the output of the git comand with the rule
system default code page to unicode.
But cp936 -> unicode conversion implicitly done by exec is not reversible.
So we have to use git_read instead.
Bug report and an original reproducer by Cloud Chou:
https://github.com/msysgit/git/issues/302
Karsten Blees writes this code patch.
Cloud Chou find the reason of the bug.
Thanks-to: dscho
Thanks-to: patthoyts
Signed-off-by: Karsten Blees <blees@dcon.de>
Original-test-by: Cloud Chou <515312382@qq.com>
Signed-off-by: Cloud Chou <515312382@qq.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Assumes file names in git tree objects are UTF-8 encoded.
On most unix systems, the system encoding (and thus the TCL system
encoding) will be UTF-8, so file names will be displayed correctly.
On Windows, it is impossible to set the system encoding to UTF-8. Changing
the TCL system encoding (via 'encoding system ...', e.g. in the startup
code) is explicitly discouraged by the TCL docs.
Change gitk and git-gui functions dealing with file names to always convert
from and to UTF-8.
Signed-off-by: Karsten Blees <blees@dcon.de>
MinGW builds of cURL does not ship with curl-config unless built
with the autoconf based build system, which is not the practice
recommended by the documentation. MsysGit has had issues with
binaries of that sort, so it has switched away from autoconf-based
cURL-builds.
Unfortunately, broke pushing over WebDAV on Windows, because
http-push.c depends on cURL's multi-threaded API, which we could
not determine the presence of any more.
Since troublesome curl-versions are ancient, and not even present
in RedHat 5, let's just assume cURL is capable instead of doing a
non-robust check.
Instead, add a check for curl_multi_init to our configure-script,
for those on ancient system. They probably already need to do the
configure-dance anyway.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Merges with an absurd number of parents are still a bad idea because
they do not render well in tools like gitk, but if they are present
in the repository being imported into git then there's no need to
avoid reproducing them faithfully.
In olden times, before v1.6.0-rc0~194 (2008-06-27), git commit-tree
and higher-level tools built on top of it were limited to writing 16
parents for a commit. Nowadays normal git operations are happy to
write more parents when asked, so the motivation for this note in the
fast-import documentation is gone and we can remove it.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When stream_blob_to_fd() opens an input stream with a filter, the
filter gets discarded upon calling close_istream() before the
function returns in the normal case. However, when we fail to open
the stream, we failed to discard the filter.
By discarding the filter in the failure case, give a consistent
life-time rule of the filter to the callers; otherwise the callers
need to conditionally discard the filter themselves, and this
function does not give enough hint for the caller to do so
correctly.
Signed-off-by: John Keeping <john@keeping.me.uk>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git show-branch --topics <rev> <revs>..." displays ancestry graph, only
considering commits that are in all given revs, except the first one.
"git show-branch" displays ancestry graph for all local branches.
Unfortunately, "git show-branch --topics <rev>" only prints out the rev
info for the given rev, and nothing else, e.g.:
$ git show-branch --topics origin/master
[origin/master] Sync with 2.3.3
While there is an option to add all remote-tracking branches (-r), and
another to add all local+remote branches (-a), there is no option to add
only local branches. Adding such an option could be considered, but a
user would likely already expect that the above command line considers
the lack of rev other than for --topics as meaning all local branches,
like when there is no argument at all.
Moreover, when using -r and -a along with --topics, the first local or
remote-tracking branch, depending on alphabetic order is used instead of
the one given after --topics (any rev given on the command line is
actually simply ignored when either -r or -a is given). And if no rev is
given at all, the fact that the first alphetical branch is the base of
topics is probably not expected by users (Maybe --topics should always
require one rev on the command line?)
This change makes
"show-branch --topics $rev"
act as
"show-branch --topics $rev $(git for-each-ref refs/heads
--format='%(refname:short)')"
"show-branch -r --topics $rev ..."
act as
"show-branch --topics $rev ... $(git for-each-ref refs/remotes
--format='%(refname:short)')"
instead of
"show-branch --topics $(git for-each-ref refs/remotes
--format='%(refname:short)')"
and
"show-branch -a --topics $rev ..."
act as
"show-branch --topics $rev ... $(git for-each-ref refs/heads refs/remotes
--format='%(refname:short)')"
instead of
"show-branch --topics $(git for-each-ref refs/heads refs/remotes
--format='%(refname:short)')"
Signed-off-by: Mike Hommey <mh@glandium.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
