Commit Graph

63619 Commits

Author SHA1 Message Date
Sebastian Schuberth
e69008ff45 Makefile: Set htmldir to match the default HTML docs location under MSYS
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
2016-08-09 16:45:26 +02:00
Sebastian Schuberth
d98ad7ef02 MinGW: Use MakeMaker to build the Perl libraries
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>
2016-08-09 16:45:26 +02:00
Johannes Schindelin
295c96375c http: also treat config options sslCert and sslKey as paths
This is a companion patch to bf9acba (http: treat config options
sslCAPath and sslCAInfo as paths, 2015-11-23).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 16:45:26 +02:00
Johannes Schindelin
e868bd6420 mingw: handle absolute paths in expand_user_path()
On Windows, an absolute POSIX path needs to be turned into a Windows
one.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 16:45:26 +02:00
Johannes Schindelin
ee81768174 Merge 'resource-version' into HEAD 2016-08-09 16:45:25 +02:00
Johannes Schindelin
0bc47d5e5b Merge 'readme' into HEAD
Add a README.md for GitHub goodness.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 16:33:02 +02:00
Anton Serbulov
e0a236ffe4 mingw: fix getcwd when the parent directory cannot be queried
`GetLongPathName()` function may fail when it is unable to query
the parent directory of a path component to determine the long name
for that component. It happens, because of it uses `FindFirstFile()`
function for each next short part of path. The `FindFirstFile()`
requires `List Directory` and `Synchronize` desired access for a calling
process.

In case of lacking such permission for some part of path,
the `GetLongPathName()` returns 0 as result and `GetLastError()`
returns ERROR_ACCESS_DENIED.

`GetFinalPathNameByHandle()` function can help in such cases, because
it requires `Read Attributes` and `Synchronize` desired access to the
target path only.

The `GetFinalPathNameByHandle()` function was introduced on
`Windows Server 2008/Windows Vista`. So we need to load it dynamically.

`CreateFile()` parameters:
    `lpFileName` = path to the current directory
    `dwDesiredAccess` = 0 (it means `Read Attributes` and `Synchronize`)
    `dwShareMode` = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE
                    (it prevents `Sharing Violation`)
    `lpSecurityAttributes` = NULL (default security attributes)
    `dwCreationDisposition` = OPEN_EXISTING
                              (required to obtain a directory handle)
    `dwFlagsAndAttributes` = FILE_FLAG_BACKUP_SEMANTICS
                             (required to obtain a directory handle)
    `hTemplateFile` = NULL (when opening an existing file or directory,
                            `CreateFile` ignores this parameter)

The string that is returned by `GetFinalPathNameByHandle()` function
uses the \\?\ syntax. To skip the prefix and convert backslashes
to slashes, the `normalize_ntpath()` mingw function will be used.

Note: `GetFinalPathNameByHandle()` function returns a final path.
It is the path that is returned when a path is fully resolved.
For example, for a symbolic link named "C:\tmp\mydir" that points to
"D:\yourdir", the final path would be "D:\yourdir".

Signed-off-by: Anton Serbulov <aserbulov@plesk.com>
2016-08-09 16:32:57 +02:00
Johannes Schindelin
e797e1ee47 mingw: ensure getcwd() reports the correct case
When switching the current working directory, say, in PowerShell, it is
quite possible to use a different capitalization than the one that is
recorded on disk. While doing the same in `cmd.exe` adjusts the
capitalization magically, that does not happen in PowerShell so that
`getcwd()` returns the current directory in a different way than is
recorded on disk.

Typically this creates no problems except when you call

	git log .

in a subdirectory called, say, "GIT/" but you switched to "Git/" and
your `getcwd()` reports the latter, then Git won't understand that you
wanted to see the history as per the `GIT/` subdirectory but it thinks you
wanted to see the history of some directory that may have existed in the
past (but actually never did).

So let's be extra careful to adjust the capitalization of the current
directory before working with it.

Reported by a few PowerShell power users ;-)

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 16:32:57 +02:00
Brendan Forster
0e2ab66887 Add an issue template
Signed-off-by: Brendan Forster <brendan@github.com>
2016-08-09 16:32:28 +02:00
Johannes Schindelin
e7164117ce nedmalloc: work around overzealous GCC 6 warning
With GCC 6, the strdup() function is declared with the "nonnull"
attribute, stating that it is not allowed to pass a NULL value as
parameter.

In nedmalloc()'s reimplementation of strdup(), Postel's Law is heeded
and NULL parameters are handled gracefully. GCC 6 complains about that
now because it thinks that NULL cannot be passed to strdup() anyway.

Let's just shut up GCC >= 6 in that case and go on with our lives.

See https://gcc.gnu.org/gcc-6/porting_to.html for details.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 16:11:05 +02:00
Johannes Schindelin
99fe36e526 nedmalloc: fix misleading indentation
Spotted by GCC 6.1.0.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 16:11:05 +02:00
Johannes Schindelin
a46837b046 Revert "display HTML in default browser using Windows' shell API"
Since 4804aab (help (Windows): Display HTML in default browser using
Windows' shell API, 2008-07-13), Git for Windows used to call
`ShellExecute()` to launch the default Windows handler for `.html`
files.

The idea was to avoid going through a shell script, for performance
reasons.

However, this change ignores the `help.browser` config setting. Together
with browsing help not being a performance-critical operation, let's
just revert that patch.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:51:56 +02:00
Gaël Lhez
a1c5def4ba git bundle create <bundle> leaks handle the revlist is empty.
issue #790: git bundle create does not close handle to *.lock file

This problem happens when an user tries to create an empty bundle, using the
following command:  `git bundle create <bundle> <revlist>` and when <revlist>
resolve to an empty list (for example, like `master..master`), `git bundle` fails
and warn the user about how it don't want to create empty bundle.

In that case, git tries to delete the `<bundle>.lock` file, and since there's still
an open file handle, fails to do so and ask the user if it should retry (which will
fail again).

The lock can still be deleted manually by the user (and it is required if the user
want to create a bundle after revising his rev-list).

Signed-off-by: Gaël Lhez <gael.lhez@gmail.com>
2016-08-09 15:30:08 +02:00
Johannes Schindelin
efdb61f7fc gc/repack: release packs when needed
On Windows, files cannot be removed nor renamed if there are still
handles held by a process. To remedy that, we introduced the
close_all_packs() function.

Earlier, we made sure that the packs are released just before `git gc`
is spawned, in case that gc wants to remove no-longer needed packs.

But this developer forgot that gc itself also needs to let go of packs,
e.g. when consolidating all packs via the --aggressive option.

Likewise, `git repack -d` wants to delete obsolete packs and therefore
needs to close all pack handles, too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:30:07 +02:00
Ben Wijen
b11ff4921e Make sure temporary file handles are not inherited by child processes
When testing a merge driver which spawns a merge server (for future merges)
I got the following error:

    Rename from 'xxx/.git/index.lock' to 'xxx/.git/index' failed. Should I try again? (y/n)

Only after I stop the merge server the lock is released.
This is caused by windows handle inheritance.

Starting childs with bInheritHandles==FALSE does not work,
because no file handles would be inherited,
not even the hStdXxx handles in STARTUPINFO.

Opening every file with O_NOINHERIT does not work,
Since it is used by git-upload-pack for example,
which expects inherited handles.

This leaves us with only creating temp files with the O_NOINHERIT flag.
Which (currently) only used by lock_file which is exactly what we want.


Signed-off-by: Ben Wijen <ben@wijen.net>
2016-08-09 15:30:06 +02:00
Ben Wijen
28ca0ea51e Add index.lock test to t/t6026-merge-attr.sh
This test was added to verify the behaviour of merge
when a merge server is spawned.

Because file handles are inherited by child processes,
the index.lock is also inherited and - on win32 - can't
be released until the child has stopped.

Signed-off-by: Ben Wijen <ben@wijen.net>
2016-08-09 15:30:06 +02:00
Orgad Shaneh
d1ffafb6da git-gui: Do not reset author details on amend
git commit --amend preserves the author details unless --reset-author is
given.

git-gui discards the author details on amend.

Fix by reading the author details along with the commit message, and
setting the appropriate environment variables required for preserving
them.

Reported long ago in the mailing list[1].

[1] http://article.gmane.org/gmane.comp.version-control.git/243921

Signed-off-by: Orgad Shaneh <orgad.shaneh@audiocodes.com>
2016-08-09 15:29:20 +02:00
Johannes Schindelin
1dc82b37f3 mingw: include the full version information in the resources
This fixes https://github.com/git-for-windows/git/issues/723

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:29:11 +02:00
Johannes Schindelin
fb5733e6b2 git gui: fix staging a second line to a 1-line file
When a 1-line file is augmented by a second line, and the user tries to
stage that single line via the "Stage Line" context menu item, we do not
want to see "apply: corrupt patch at line 5".

The reason for this error was that the hunk header looks like this:

	@@ -1 +1,2 @@

but the existing code expects the original range always to contain a
comma. This problem is easily fixed by cutting the string "1 +1,2"
(that Git GUI formerly mistook for the starting line) at the space.

This fixes https://github.com/git-for-windows/git/issues/515

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:54 +02:00
yaras
e851f8e952 Do not mask the username when reading credentials
When user is asked for credentials there is no need to mask username,
so PROMPT_ASKPASS flag on calling credential_ask_one for login is
unnecessary.

credential_ask_one internally uses git_prompt which in case of given
flag PROMPT_ASKPASS uses masked input method instead of
git_terminal_prompt, which does not mask user input.

This fixes #675

Signed-off-by: yaras <yaras6@gmail.com>
2016-08-09 15:27:46 +02:00
yaras
679a3385ee Fix initial git gui message encoding
This fix refers https://github.com/git-for-windows/git/issues/664

After `git merge --squash` git creates .git/SQUASH_MSG (UTF-8 encoded)
which contains squashed commits. When run `git gui` it copies SQUASH_MSG
to PREPARE_COMMIT_MSG, but without honoring UTF-8. This leads to encoding
problems on `git gui` commit prompt.

The same applies on git cherry-pick conflict, where MERGE_MSG is created
and then is copied to PREPARE_COMMIT_MSG.

In both cases PREPARE_COMMIT_MSG must be configured to store data in UTF-8.

Signed-off-by: yaras <yaras6@gmail.com>
2016-08-09 15:27:45 +02:00
James J. Raden
da4450b6fe gitk: make the "list references" default window width wider
When using remotes (with git-flow especially), the remote reference names
are almost always wordwrapped in the "list references" window because it's
somewhat narrow by default. It's possible to resize it with a mouse,
but it's annoying to have to do this every time, especially on Windows 10,
where the window border seems to be only one (1) pixel wide, thus making
the grabbing of the window border tricky.

Signed-off-by: James J. Raden <james.raden@gmail.com>
2016-08-09 15:27:44 +02:00
Christophe Bucher
22a3a20054 git-wrapper: do not let the Ctrl-C event kill the wrapper
... while waiting for the child process to finish.

The Git wrapper serves, among other things, as git-cmd.exe. In that
role, its primary purpose is to provide an interactive cmd window that
knows where to find Git.

A secondary use of git-cmd.exe is to be able to launch other console
processes that know about Git, e.g. when ConsoleZ wants to call an
interactive Bash (it cannot call git-bash.exe because that would open a
new MinTTY window). To this end, git-cmd.exe supports the --command=...
command-line option. The interactive bash would be called like this:

	git-cmd --command=usr\bin\bash.exe -l -i

The command-line arguments after the --command=... options are simply
passed through to the command itself. If no --command=... option is
specified, git-cmd.exe defaults to cmd.exe.

Once git-cmd.exe is launched, it finds the top-level directory of the
Git for Windows installation and then launches the command as a child
process. And this is where things get a little bit tricky: When the user
presses CTRL-C, the cmd window receives WM_KEYDOWN/WM_KEYUP messages
which are then handled by the TranslateMessage function that generates a
CTRL-C event that is sent to the console processes running in the
console window (i.e. both git-cmd.exe and the child process).

If no Console Ctrl Handlers have been registered, the git-cmd.exe
process will simply be terminated, without having waited for the
interactive Bash to quit (it does not quit, of course, because it
handles Ctrl+C by terminating any process launched from within the
Bash). Now both cmd and the Bash compete for user input.

Luckily, the solution is very easy: the Win32 API sports a
SetConsoleCtrlHandler() function to register/unregister Console Ctrl
Handlers. When the NULL pointer is registered as "handler", it "causes
the calling process to ignore CTRL+C input":

https://msdn.microsoft.com/en-us/library/windows/desktop/ms686016.aspx

This is exactly what we need here: while waiting for the child processes
to finish, the git-cmd.exe process itself should not be interruptible by
the user. Immediately after the child process terminates, we unregister
the Console Ctrl Handler.

Note: we need to be careful with changes to the Git wrapper as it serves
many other purposes in addition to git-cmd.exe. For example, it serves
as the cmd\git.exe as well as all of the git-<builtin>.exe stand-ins.
So do we want the same Ctrl+C behavior even in those instances? Yes: If
the user interrupts using Ctrl+C, the child process should terminate
before the Git wrapper.

Also note: We cannot override the Console Ctrl Handler with a function
that simply always returns TRUE: this would prevent the console window
opened via git-cmd.exe from closing, since the Console Ctrl Handler
*also* handles "signals generated by the system when the user closes the
console, logs off, or shuts down the system."

[jes: changed the patch to conform with the surrounding coding style, to
pass NULL as Console Ctrl Handler and unregister it as soon as
appropriate, fixed commit message to be more accurate and informative,
added link to the SetConsoleCtrlHandler() documentation.]

This fixes https://github.com/git-for-windows/git/pull/205

Signed-off-by: Christophe Bucher Developer <christophe.bucher@laposte.net>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:43 +02:00
Johannes Schindelin
cb071fb6be gitk: fix arrow keys in input fields with Tcl/Tk >= 8.6
Tcl/Tk 8.6 introduced new events for the cursor left/right keys and
apparently changed the behavior of the previous event.

Let's work around that by using the new events when we are running with
Tcl/Tk 8.6 or later.

This fixes https://github.com/git-for-windows/git/issues/495

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:43 +02:00
Johannes Schindelin
d8b9cd6103 t7300: git clean -dfx must show an error with long paths
In particular on Windows, where the default maximum path length is quite
small, but there are ways to circumvent that limit in many cases, it is
very important that users be given an indication why their command
failed because of too long paths when it did.

This test case makes sure that a warning is issued that would have
helped the user who reported Git for Windows' issue 521:

	https://github.com/git-for-windows/git/issues/521

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:42 +02:00
Johannes Schindelin
c080dcfa7c remove_dirs: do not swallow error when stat() failed
Without an error message when stat() failed, e.g. `git clean` would
abort without an error message, leaving the user quite puzzled.

This fixes https://github.com/git-for-windows/git/issues/521

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:42 +02:00
Johannes Schindelin
3006781534 git-wrapper: fix interpolation with short values
To be precise: when the value of the environment variable is shorter than
its name, we have to move the remaining bytes *after* expanding the
environment variable: we would look for the wrong name otherwise.

When the value is longer than the name, we still need to move the bytes
out of the way first, to avoid overwriting them with the interpolated
text.

This fixes https://github.com/git-for-windows/git/issues/509

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:41 +02:00
Johannes Schindelin
c885439682 git-wrapper: make the interpolation code easier to understand
When moving bytes (because the name and the value of the environment
variable to interpolate differ in length), we introduce a variable to
unclutter the code and make it more obvious what is happening.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:41 +02:00
Johannes Schindelin
59ae23d2f5 git-wrapper: simplify interpolation code
After we found the `@@` marker after the key to interpolate, we pretty
much only need the offset *after* the marker. So let's just advance it
instead of adding 2 in many places.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:41 +02:00
Johannes Schindelin
2b21131b81 git-wrapper: append $HOME/bin to the PATH
`$HOME/bin/` is quite convenient a place to put user-specific Git
helpers, such as credential or remote helpers.

When run in Git Bash, it is therefore already appended to the PATH;
Let's do the equivalent when run in Git CMD: when `git.exe` is
called, Git is told to look also for scripts and programs in
`$HOME/bin` (this does not modify Git CMD's `PATH`, of course).

This fixes https://github.com/git-for-windows/git/issues/429

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:40 +02:00
Johannes Schindelin
15cac30c27 git-wrapper: support COMSPEC better
The quoting rules of `cmd.exe` are really, really quirky. In particular,
if there are more than two quotes, the entire set of rules changes. That
is the reason why

	CMD /C "C:\Program Files\Git\usr\bin\bash.exe" -l -i

works, but

	CMD /C "C:\Program Files\Git\usr\bin\bash.exe" -l -i "test.sh"

fails with this error message:

	'C:\Program' is not recognized as an internal or external command,
	operable program or batch file.

The recommended fix is to pass the /S option to `cmd.exe` and surround
the entire command-line by an extra set of quotes. And here lies the
rub: for that to work, we have to append an extra quote. At the end of
the command-line. *After* the last argument was appended, if any.

This commit supports that use case by introducing the option
"APPEND_QUOTE". The intended usage is to use the following string
resource:

	SHOW_CONSOLE=1 APPEND_QUOTE=1
	@@COMSPEC@@ /S /C \"\"@@EXEPATH@@\\usr\\bin\\bash.exe\" --login -i

(Note that there are only three quotes on that command-line, the fourth
to be appended due to the `APPEND_QUOTE` setting.)

This is (1/3) to fix https://github.com/git-for-windows/git/issues/396

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:40 +02:00
Johannes Schindelin
ac110d2518 mingw: let the Git wrapper determine the top-level directory
The Git wrapper is also used as a redirector for Git for Windows'
bin\bash.exe dropin: for backwards-compatibility, bin\bash.exe exists
and simply sets up the environment variables before executing the
*real* bash.

However, due to our logic to use the directory in which the `.exe`
lives as top-level directory (or one directory below for certain, known
basenames such as `git.exe` and `gitk.exe`), the `PATH` environment
variable was prefixed with the `/bin/bin` and `/bin/mingw/bin`
directories -- which makes no sense.

Instead, let's just auto-detect the top-level directory in the common
case.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:39 +02:00
Johannes Schindelin
18b8e2ebee mingw: clean up the Git wrapper a bit
We should not conflate the 'exepath' with the 'top-level
directory'. The former should be the directory in which the executable
lives while the latter should be the top-level directory ("POSIX root
directory") as far as Git is concerned.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:39 +02:00
Johannes Schindelin
d799b71f5a git-wrapper: also allow setting the application ID
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>
2016-08-09 15:27:38 +02:00
Johannes Schindelin
ea49dd42ac git-wrapper: leave the working directory alone by default
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>
2016-08-09 15:27:38 +02:00
Johannes Schindelin
1971f08d4b git-wrapper: allow overriding the command to spawn via command-line args
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>
2016-08-09 15:27:37 +02:00
Johannes Schindelin
6da9a629bb git wrapper: auto-grow buffer in expand_variables()
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:37 +02:00
Johannes Schindelin
0bfaa8cd60 git wrapper: refactor @@VAR@@ expansion into its own function
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>
2016-08-09 15:27:37 +02:00
Johannes Schindelin
021e03a528 git wrapper: refactor extraction of 1st arg into its own function
This will be reused by the upcoming `--command=<command>` option.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:37 +02:00
Nico Rieck
8fb5930ea1 git-wrapper: let git gui run in the background
This fixes https://github.com/git-for-windows/git/issues/172.

Signed-off-by: Nico Rieck <nico.rieck@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:36 +02:00
Karsten Blees
fdbdb1c17a git-wrapper: don't set the console input code page
Using different code pages for console input (SetConsoleCP()) and console
output (SetConsoleOutputCP()) doesn't make much sense and may be hazardous
for native Windows programs.

Git uses UTF-8 internally, so it actually needs 'SetConsoleCP(CP_UTF8)'
rather than 'SetConsoleCP(GetACP())'. However, ReadFile() / ReadConsoleA()
are broken with CP_UTF8 (and thus any higher level APIs such as fgetc(),
getchar() etc.). Unicode-aware console input would have to be implemented
via mingw_* wrappers using ReadConsoleW(). As Git typically launches an
editor for anything more complex than ASCII-only, yes/no-style questions,
this is currently not a problem.

Drop 'SetConsoleCP()' from the git-wrapper, so that input and output code
pages stay in sync.

Signed-off-by: Karsten Blees <blees@dcon.de>
2016-08-09 15:27:36 +02:00
Johannes Schindelin
54ee3c29d7 git-wrapper: support the non-mintty fall-back for Git Bash
When we fall back to starting the Git Bash in the regular Windows
console, we need to show said console's window... So let's introduce yet
another configuration knob for use via string resources.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:36 +02:00
Johannes Schindelin
caf51778cd git wrapper: allow _Git Bash_ to run with a newly allocated console
With a recent change in Cygwin (which is the basis of the msys2-runtime),
a GUI process desiring to launch an MSys2 executable needs to allocate a
console for the new process (otherwise the process will just hang on
Windows XP). _Git Bash_ is such a GUI process.

While at it, use correct handles when inheriting the stdin/stdout/stderr
handles: `GetStdHandle()` returns NULL for invalid handles, but the
STARTUPINFO must specify `INVALID_HANDLE_VALUE` instead.

Originally, the hope was that only this `NULL` => `INVALID_HANDLE_VALUE`
conversion would be required to fix the Windows XP issue mentioned above
(extensive debugging revealed that starting _Git Bash_ on Windows XP would
yield invalid handles for `stdin` and `stderr`, but *not* for `stdout`).

However, while _Git Bash_ eventually showed a `mintty` when not allocating
a new console, it took around one second to show it, and several seconds
to close it. So let's just include both fixes.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:35 +02:00
Johannes Schindelin
a79479d5bb git-wrapper: prepare to allow more options than MINIMAL_PATH
With the resource-driven command-line configuration, we introduced the
option to ensure that only the PATH environment variable is edited only
minimally, i.e. only /cmd/ is added (as appropriate for _Git CMD_).

We are about to add another option, so let's refactor the equivalent of
Git's `strip_prefix()` function; It is not *quite* the same because we
have to `memmove()` the remainder to the beginning of the buffer.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:35 +02:00
Karsten Blees
70c4546b0e git-wrapper: remove redundant TERM initialization
Remove redundant TERM initialization from git-wrapper in favor of TERM
initialization in git itself.

Signed-off-by: Karsten Blees <blees@dcon.de>
2016-08-09 15:27:35 +02:00
Karsten Blees
44cb23c5e2 git-wrapper: fix HOME initialization
git-wrapper fails to initialize HOME correctly if $HOMEDRIVE$HOMEPATH
points to a disconnected network drive.

Check if the directory exists before using $HOMEDRIVE$HOMEPATH.

Signed-off-by: Karsten Blees <blees@dcon.de>
2016-08-09 15:27:35 +02:00
Vitaly Takmazov
c181f00358 git-wrapper: case-insensitive path comparison 2016-08-09 15:27:34 +02:00
Johannes Schindelin
92dfdcd9e6 git-wrapper: interpret --cd=<directory> when configured via resources
This change accompanies the `--no-cd` option when configured via
resources. It is required to support `Git Bash Here`: when
right-clicking an icon in the Explorer to start a Bash, the working
directory is actually the directory that is displayed in the Explorer.
That means if the clicked icon actually refers to a directory, the
working directory would be its *parent* directory.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:34 +02:00
Johannes Schindelin
b90546048b git-wrapper: serve as git-gui.exe, too
To avoid that ugly Console window when calling \cmd\git.exe gui...

To avoid confusion with builtins, we need to move the code block
handling gitk (and now git-gui, too) to intercept before git-gui is
mistaken for a builtin.

Unfortunately, git-gui is in libexec/git-core/ while gitk is in bin/,
therefore we need slightly more adjustments than just moving and
augmenting the gitk case.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2016-08-09 15:27:34 +02:00
nalla
2863b0b499 git-wrapper: support git.exe and gitk.exe to be in a spaced dir
When *Git for Windows* is installed into a directory that has spaces in
it, e.g. `C:\Program Files\Git`, the `git-wrapper` appends this directory
unquoted when fixing up the command line. To resolve this, just quote the
provided `execpath`.

Signed-off-by: nalla <nalla@hamal.uberspace.de>
2016-08-09 15:27:34 +02:00