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2010-04-11Merge branch 'jl/maint-submodule-gitfile-awareness'Junio C Hamano
* jl/maint-submodule-gitfile-awareness: Windows: start_command: Support non-NULL dir in struct child_process
2010-04-11Windows: start_command: Support non-NULL dir in struct child_processJohannes Sixt
A caller of start_command can set the member 'dir' to a directory to request that the child process starts with that directory as CWD. The first user of this feature was added recently in eee49b6 (Teach diff --submodule and status to handle .git files in submodules). On Windows, we have been lazy and had not implemented support for this feature, yet. This fixes the shortcoming. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-25Windows: redirect f[re]open("/dev/null") to f[re]open("nul")Johannes Sixt
On Windows, the equivalent of "/dev/null" is "nul". This implements compatibility wrappers around fopen() and freopen() that check for this particular file name. The new tests exercise code paths where this is relevant. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-17MSVC: Windows-native implementation for subset of Pthreads APIAndrzej K. Haczewski
This patch implements native to Windows subset of pthreads API used by Git. It allows to remove Pthreads for Win32 dependency for MSVC, msysgit and Cygwin. [J6t: If the MinGW build was built as part of the msysgit build environment, then threading was already enabled because the pthreads-win32 package is available in msysgit. With this patch, we can now enable threaded code unconditionally.] Signed-off-by: Andrzej K. Haczewski <ahaczewski@gmail.com> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-17MSVC: Fix an "incompatible pointer types" compiler warningRamsay Jones
In particular, the following warning is issued while compiling compat/msvc.c: ...mingw.c(223) : warning C4133: 'function' : incompatible \ types - from '_stati64 *' to '_stat64 *' which relates to a call of _fstati64() in the mingw_fstat() function definition. This is caused by various layers of macro magic and attempts to avoid macro redefinition compiler warnings. For example, the call to _fstati64() mentioned above is actually a call to _fstat64(), and expects a pointer to a struct _stat64 rather than the struct _stati64 which is passed to mingw_fstat(). The definition of struct _stati64 given in compat/msvc.h had the same "shape" as the definition of struct _stat64, so the call to _fstat64() does not actually cause any runtime errors, but the structure types are indeed incompatible. In order to avoid the compiler warning, we add declarations for the mingw_lstat() and mingw_fstat() functions and supporting macros to msvc.h, suppressing the corresponding declarations in mingw.h, so that we can use the appropriate structure type (and function) names from the msvc headers. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-17Windows: avoid the "dup dance" when spawning a child processJohannes Sixt
When stdin, stdout, or stderr must be redirected for a child process that on Windows is spawned using one of the spawn() functions of Microsoft's C runtime, then there is no choice other than to 1. make a backup copy of fd 0,1,2 with dup 2. dup2 the redirection source fd into 0,1,2 3. spawn 4. dup2 the backup back into 0,1,2 5. close the backup copy and the redirection source We used this idiom as well -- but we are not using the spawn() functions anymore! Instead, we have our own implementation. We had hardcoded that stdin, stdout, and stderr of the child process were inherited from the parent's fds 0, 1, and 2. But we can actually specify any fd. With this patch, the fds to inherit are passed from start_command()'s WIN32 section to our spawn implementation. This way, we can avoid the backup copies of the fds. The backup copies were a bug waiting to surface: The OS handles underlying the dup()ed fds were inherited by the child process (but were not associated with a file descriptor in the child). Consequently, the file or pipe represented by the OS handle remained open even after the backup copy was closed in the parent process until the child exited. Since our implementation of pipe() creates non-inheritable OS handles, we still dup() file descriptors in start_command() because dup() happens to create inheritable duplicates. (A nice side effect is that the fd cleanup in start_command is the same for Windows and Unix and remains unchanged.) Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-24Enable support for IPv6 on MinGWMartin Storsjö
The IPv6 support functions are loaded dynamically, to maintain backwards compatibility with versions of Windows prior to XP, and fallback wrappers are provided, implemented in terms of gethostbyname and gethostbyaddr. Signed-off-by: Martin Storsjo <martin@martin.st> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-21Merge branch 'rj/cygwin-msvc'Junio C Hamano
* rj/cygwin-msvc: MSVC: Add support for building with NO_MMAP Makefile: keep MSVC and Cygwin configuration separate
2009-11-09MSVC: Add support for building with NO_MMAPRamsay Jones
When the NO_MMAP build variable is set, the msvc linker complains: error LNK2001: unresolved external symbol _getpagesize The msvc libraries do not define the getpagesize() function, so we move the mingw_getpagesize() implementation from the conditionally built win32mmap.c file to mingw.c. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-20mingw: wrap SSL_set_(w|r)fd to call _get_osfhandleErik Faye-Lund
SSL_set_fd (and friends) expects a OS file handle on Windows, not a file descriptor as on UNIX(-ish). This patch makes the Windows version of SSL_set_fd behave like the UNIX versions, by calling _get_osfhandle on it's input. Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-19Make usage of windows.h lean and meanMarius Storm-Olsen
Centralize the include of windows.h in git-compat-util.h, turn on WIN32_LEAN_AND_MEAN to avoid including plenty of other header files which is not needed in Git. Also ensure we load winsock2.h first, so we don't load the older winsock definitions at a later stage, since they contain duplicate definitions. When moving windows.h into git-compat-util.h, we need to protect the definition of struct pollfd in mingw.h, since this file is used by both MinGW and MSVC, and the latter defines this struct in winsock2.h. We need to keep the windows.h include in compat/win32.h, since its shared by both MinGW and Cygwin, and we're not touching Cygwin in this commit. The include in git-compat-util.h is protected with an ifdef WIN32, which is not the case when compiling for Cygwin. Signed-off-by: Marius Storm-Olsen <mstormo@gmail.com> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-19Set _O_BINARY as default fmode for both MinGW and MSVCMarius Storm-Olsen
MinGW set the _CRT_fmode to set both the default fmode and _O_BINARY on stdin/stdout/stderr. Rather use the main() define in mingw.h to set this for both MinGW and MSVC. This will ensure that a MinGW and MSVC build will handle input and output identically. Signed-off-by: Marius Storm-Olsen <mstormo@gmail.com> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-11start_command: do not clobber cmd->env on Windows code pathJohannes Sixt
Previously, it would not be possible to call start_command twice for the same struct child_process that has env set. The fix is achieved by moving the loop that modifies the environment block into a helper function. This also allows us to make two other helper functions static. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-05MinGW: simplify waitpid() emulation macrosJohannes Sixt
Windows does not have signals. At least they cannot be diagnosed by the parent process; all that the parent process can observe is the exit code. This also adds a dummy definition of WTERMSIG. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-05MinGW: truncate exit()'s argument to lowest 8 bitsJohannes Sixt
For some reason, MinGW's bash cannot reliably detect failure of the child process if a negative value is passed to exit(). This fixes it by truncating the exit code in all calls of exit(). This issue was worked around in run_builtin() of git.c (2488df84 builtin run_command: do not exit with -1, 2007-11-15). This workaround is no longer necessary and is reverted. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-01MinGW readdir reimplementation to support d_typeMarius Storm-Olsen
The original readdir implementation was fast, but didn't support the d_type. This means that git would do additional lstats for each entry, to figure out if the entry was a directory or not. This unneedingly slowed down many operations, since Windows API provides this information directly when walking the directories. By running this implementation on Moe's repo structure: mkdir bummer && cd bummer; for ((i=0;i<100;i++)); do mkdir $i && pushd $i; for ((j=0;j<1000;j++)); do echo "$j" >$j; done; popd; done We see the following speedups: git add . ------------------- old: 00:00:23(.087) new: 00:00:21(.512) 1.07x git status ------------------- old: 00:00:03(.306) new: 00:00:01(.684) 1.96x git clean -dxf ------------------- old: 00:00:01(.918) new: 00:00:00(.295) 6.50x Signed-off-by: Marius Storm-Olsen <marius@trolltech.com> Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-23MinGW: Add a simple getpass()Johannes Schindelin
We need getpass() to activate curl on MinGW. Although the default Makefile currently has 'NO_CURL = YesPlease', msysgit releases do provide curl support, so getpass() is used. [spr: - edited commit message. - squashed commit that provides getpass() declaration.] Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-23MinGW: use POSIX signature of waitpid()Johannes Schindelin
Git's source code expects waitpid() to return a signed int status. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-19MinGW: implement mmapJanos Laube
Add USE_WIN32_MMAP which triggers the use of windows' native file memory mapping functionality in git_mmap()/git_munmap() functions. As git functions currently use mmap with MAP_PRIVATE set only, this implementation supports only that mode for now. On Windows, offsets for memory mapped files need to match the allocation granularity. Take this into account when calculating the packed git- windowsize and file offsets. At the moment, the only function which makes use of offsets in conjunction with mmap is use_pack() in sha1-file.c. Git fast-import's code path tries to map a portion of the temporary packfile that exceeds the current filesize, i.e. offset+length is greater than the filesize. The NO_MMAP code worked with that since pread() just reads the file content until EOF and returns gracefully, while MapViewOfFile() aborts the mapping and returns 'Access Denied'. Working around that by determining the filesize and adjusting the length parameter. Signed-off-by: Janos Laube <janos.dev@gmail.com> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-17MinGW: a hardlink implementationPetr Kodl
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07Brown paper bag fix for MinGW 64-bit statJohannes Schindelin
When overriding the identifier "stat" so that "struct stat" will be substituted with "struct _stati64" everywhere, I tried to fix the calls to the _function_ stat(), too, but I forgot to change the earlier attempt "stat64" to "_stati64" there. So, the stat() calls were overridden by calls to _stati64() instead. Unfortunately, there is a function _stati64() so that I missed that calls to stat() were not actually overridden by calls to mingw_lstat(), but t4200-rerere.sh showed the error. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-05MinGW: 64-bit file offsetsJohannes Schindelin
The type 'off_t' should be used everywhere so that the bit-depth of that type can be adjusted in the standard C library, and you just need to recompile your program to benefit from the extended precision. Only that it was not done that way in the MS runtime library. This patch reroutes off_t to off64_t and provides the other necessary changes so that finally, clones larger than 2 gigabyte work on Windows (provided you are on a file system that allows files larger than 2gb). Initial patch by Sickboy <sb@dev-heaven.net>. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-22Windows: Fix signal numbersJohannes Sixt
We had defined some SIG_FOO macros that appear in the code, but that are not supported on Windows, in order to make the code compile. But a subsequent change will assert that a signal number is non-zero. We now use the signal numbers that are commonly used on POSIX systems. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-19Revert "Windows: Use a customized struct stat that also has the st_blocks ↵Johannes Sixt
member." This reverts commit fc2ded5b08e071beed974117c0148781b1acc94a. As we do not need the member in struct stat, we do not need to have a custom "struct mingw_stat" anymore. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-19compat: introduce on_disk_bytes()Junio C Hamano
Some platforms do not have st_blocks member in "struct stat"; mingw already emulates it by rounding it up to closest 512-byte blocks (even though it could overcount when a file has holes). The reason to use the member is only to figure out how many kilobytes the files occupy on-disk, so give a helper function in git-compat-util.h to compute this value. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-08-03Modify mingw_main() workaround to avoid link errorsSteffen Prohaska
With MinGW's gcc.exe (GCC) 3.4.5 (mingw special) GNU ld version 2.17.50 20060824 the old define caused link errors: git.o: In function `main': C:/msysgit/git/git.c:500: undefined reference to `mingw_main' collect2: ld returned 1 exit status The modified define works. Signed-off-by: Steffen Prohaska <prohaska@zib.de> Acked-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-26Windows: Make sure argv[0] has a pathJohannes Sixt
Since the exec-path on Windows is derived from the program invocation path, we must ensure that argv[0] always has a path. Unfortunately, if a program is invoked from CMD, argv[0] has no path. But on the other hand, the C runtime offers a global variable, _pgmptr, that always has the full path to the program. We hook into main() with a preprocessor macro, where we replace argv[0]. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-19Add ANSI control code emulation for the Windows consolePeter Harris
This adds only the minimum necessary to keep git pull/merge's diffstat from wrapping. Notably absent is support for the K (erase) operation, and support for POSIX write. Signed-off-by: Peter Harris <git@peter.is-a-geek.org> Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-13help (Windows): Display HTML in default browser using Windows' shell APISteffen Prohaska
The system's default browser for displaying HTML help pages is now used directly on Windows, instead of launching git-web--browser, which requires a Unix shell. Avoiding MSYS' bash when possible is good because it avoids potential path translation issues. In this case it is not too hard to avoid launching a shell, so let's avoid it. The Windows-specific code is implemented in compat/mingw.c to avoid platform-specific code in the main code base. On Windows, open_html is provided as a define. If open_html is not defined, git-web--browse is used. This approach avoids platform-specific ifdefs by using per-function ifdefs. The "ifndef open_html" together with the introductory comment should sufficiently warn developers, so that they hopefully will not break this mechanism. Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26Windows: Fix ntohl() related warnings about printf formattingSteffen Prohaska
On Windows, ntohl() returns unsigned long. On Unix it returns uint32_t. This makes choosing a suitable printf format string hard. This commit introduces a mingw specific helper function git_ntohl() that casts to unsigned int before returning. This makes gcc's printf format check happy. It should be safe because we expect ntohl to use 32-bit numbers. Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-26Windows: TMP and TEMP environment variables specify a temporary directory.Johannes Sixt
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-26Windows: Use a customized struct stat that also has the st_blocks member.Johannes Sixt
Windows's struct stat does not have a st_blocks member. Since we already have our own stat/lstat/fstat implementations, we can just as well use a customized struct stat. This patch introduces just that, and also fills in the st_blocks member. On the other hand, we don't provide members that are never used. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-26Windows: Add a custom implementation for utime().Johannes Sixt
This is a necessary pendant to our lstat implementation: MSVCRT's implementations of lstat and utime do some adjustments if daylight saving time is in effect, but our lstat implementation doesn't do these adjustments and report the correct UTC time. With this implementation we omit the adjustments in utime() as well and always write UTC. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-26Windows: Add a new lstat and fstat implementation based on Win32 API.Marius Storm-Olsen
This gives us a significant speedup when adding, committing and stat'ing files. Also, since Windows doesn't really handle symlinks, we let stat just uses lstat. We also need to replace fstat, since our implementation and the standard stat() functions report slightly different timestamps, possibly due to timezones. We simply report UTC in our implementation, and do our FILETIME to time_t conversion based on the document at http://support.microsoft.com/kb/167296. With Moe's repo structure (100K files in 100 dirs, containing 2-4 bytes) mkdir bummer && cd bummer; for ((i=0;i<100;i++)); do mkdir $i && pushd $i; for ((j=0;j<1000;j++)); do echo "$j" >$j; done; popd; done We get the following performance boost: With normal lstat & stat Custom lstat/fstat ------------------------ ------------------------ Command: git init Command: git init ------------------------ ------------------------ real 0m 0.047s real 0m 0.063s user 0m 0.031s user 0m 0.015s sys 0m 0.000s sys 0m 0.015s ------------------------ ------------------------ Command: git add . Command: git add . ------------------------ ------------------------ real 0m19.390s real 0m12.031s 1.6x user 0m 0.015s user 0m 0.031s sys 0m 0.030s sys 0m 0.000s ------------------------ ------------------------ Command: git commit -a.. Command: git commit -a.. ------------------------ ------------------------ real 0m30.812s real 0m16.875s 1.8x user 0m 0.015s user 0m 0.015s sys 0m 0.000s sys 0m 0.015s ------------------------ ------------------------ 3x Command: git-status 3x Command: git-status ------------------------ ------------------------ real 0m11.860s real 0m 5.266s 2.2x user 0m 0.015s user 0m 0.015s sys 0m 0.015s sys 0m 0.015s real 0m11.703s real 0m 5.234s user 0m 0.015s user 0m 0.015s sys 0m 0.000s sys 0m 0.000s real 0m11.672s real 0m 5.250s user 0m 0.031s user 0m 0.015s sys 0m 0.000s sys 0m 0.000s ------------------------ ------------------------ Command: git commit... Command: git commit... (single file) (single file) ------------------------ ------------------------ real 0m14.234s real 0m 7.735s 1.8x user 0m 0.015s user 0m 0.031s sys 0m 0.000s sys 0m 0.000s Signed-off-by: Marius Storm-Olsen <mstormo_git@storm-olsen.com> Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-26Windows: Implement a custom spawnve().Johannes Sixt
The problem with Windows's own implementation is that it tries to be clever when a console program is invoked from a GUI application: In this case it sometimes automatically allocates a new console window. As a consequence, the IO channels of the spawned program are directed to the console, but the invoking application listens on channels that are now directed to nowhere. In this implementation we use the lowlevel facilities of CreateProcess(), which offers a flag to tell the system not to open a console. As a side effect, only stdin, stdout, and stderr channels will be accessible from C programs that are spawned. Other channels (file handles, pipe handles, etc.) are still inherited by the spawned program, but it doesn't get enough information to access them. Johannes Schindelin integrated path quoting and unified the various *execv* and *spawnv* helpers. Eric Raible suggested to also quote '{'. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-26Windows: Implement wrappers for gethostbyname(), socket(), and connect().Johannes Sixt
gethostbyname() is the first function that calls into the Winsock library, and it is wrapped only to initialize the library. socket() is wrapped for two reasons: - Windows's socket() creates things that are like low-level file handles, and they must be converted into file descriptors first. - And these handles cannot be used with plain ReadFile()/WriteFile() because they are opened for "overlapped IO". We have to use WSASocket() to create non-overlapped IO sockets. connect() must be wrapped because Windows's connect() expects the low-level sockets, not file descriptors, and we must first unwrap the file descriptor before we can pass it on to Windows's connect(). Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23Windows: Implement start_command().Johannes Sixt
On Windows, we have spawnv() variants to run a child process instead of fork()/exec(). In order to attach pipe ends to stdin, stdout, and stderr, we have to use this idiom: save1 = dup(1); dup2(pipe[1], 1); spawnv(); dup2(save1, 1); close(pipe[1]); assuming that the descriptors created by pipe() are not inheritable. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23Windows: A pipe() replacement whose ends are not inherited to children.Johannes Sixt
On Unix the idiom to use a pipe is as follows: pipe(fd); pid = fork(); if (!pid) { dup2(fd[1], 1); close(fd[1]); close(fd[0]); ... } close(fd[1]); i.e. the child process closes the both pipe ends after duplicating one to the file descriptors where they are needed. On Windows, which does not have fork(), we never have an opportunity to (1) duplicate a pipe end in the child, (2) close unused pipe ends. Instead, we must use this idiom: save1 = dup(1); pipe(fd); dup2(fd[1], 1); spawn(...); dup2(save1, 1); close(fd[1]); i.e. save away the descriptor at the destination slot, replace by the pipe end, spawn process, restore the saved file. But there is a problem: Notice that the child did not only inherit the dup2()ed descriptor, but also *both* original pipe ends. Although the one end that was dup()ed could be closed before the spawn(), we cannot close the other end - the child inherits it, no matter what. The solution is to generate non-inheritable pipes. At the first glance, this looks strange: The purpose of pipes is usually to be inherited to child processes. But notice that in the course of actions as outlined above, the pipe descriptor that we want to inherit to the child is dup2()ed, and as it so happens, Windows's dup2() creates inheritable duplicates. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23Windows: Wrap execve so that shell scripts can be invoked.Johannes Sixt
When an external git command is invoked, it can be a Bourne shell script. This patch looks into the command file to see whether it is one. In this case, the command line is rearranged to invoke the shell with the proper arguments. With this change, scripted git commands work. Command line arguments to those scripts cannot be complex (contain spaces or double-quotes), yet. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23Windows: Implement setitimer() and sigaction().Johannes Sixt
The timer is implemented using a thread that calls the signal handler at regular intervals. We also replace Windows's signal() function because we must intercept that SIGALRM is set (which is used when a timer is canceled). Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23Windows: Fix PRIuMAX definition.Johannes Sixt
Since GIT calls into Microsoft's MSVCRT.DLL, it must use the printf format that this DLL uses for 64-bit integers, which is %I64u instead of %llu. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23Windows: Work around misbehaved rename().Johannes Sixt
Windows's rename() is based on the MoveFile() API, which fails if the destination exists. Here we work around the problem by using MoveFileEx(). Furthermore, the posixly correct error is returned if the destination is a directory. The implementation is still slightly incomplete, however, because of the missing error code translation: We assume that the failure is due to permissions. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23Windows: always chmod(, 0666) before unlink().Johannes Schindelin
On Windows, read-only files cannot be deleted. To make sure that deletion does not fail because of this, always call chmod() before unlink(). Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23Windows: Implement a wrapper of the open() function.Johannes Sixt
The wrapper does two things: - Requests to open /dev/null are redirected to open the nul pseudo file. - A request to open a file that currently exists as a directory on Windows fails with EACCES; this is changed to EISDIR. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23Windows: Treat Windows style path names.Johannes Sixt
GIT's guts work with a forward slash as a path separators. We do not change that. Rather we make sure that only "normalized" paths enter the depths of the machinery. We have to translate backslashes to forward slashes in the prefix and in command line arguments. Fortunately, all of them are passed through functions in setup.c. A macro has_dos_drive_path() is defined that checks whether a path begins with a drive letter+colon combination. This predicate is always false on Unix. Another macro is_dir_sep() abstracts that a backslash is also a directory separator on Windows. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-22Windows: Use the Windows style PATH separator ';'.Johannes Sixt
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-22Add target architecture MinGW.Johannes Sixt
With this change GIT can be compiled and linked using MinGW. Builtins that only read the repository such as the log family and grep already work. Simple stubs are provided for a number of functions that the Windows C runtime does not offer. They will be completed in later patches. However, a fix for the snprintf/vsnprintf replacement is applied here to avoid buffer overflows. Dmitry Kakurin pointed out that access(..., X_OK) would always fails on Vista and suggested the -D__USE_MINGW_ACCESS workaround. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>