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2018-07-24Merge branch 'nd/command-list'Libravatar Junio C Hamano1-2/+2
Build doc update for Windows. * nd/command-list: vcbuild/README: update to accommodate for missing common-cmds.h
2018-07-16vcbuild/README: update to accommodate for missing common-cmds.hLibravatar Johannes Schindelin1-2/+2
In 60f487ac0ef (Remove common-cmds.h, 2018-05-10), we forgot to adjust this README when removing the common-cmds.h file. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11mingw/msvc: use the new-style RUNTIME_PREFIX helperLibravatar Johannes Schindelin1-3/+2
This change also allows us to stop overriding argv[0] with the absolute path of the executable, allowing us to preserve e.g. the case of the executable's file name. This fixes https://github.com/git-for-windows/git/issues/1496 partially. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-19mingw: abort on invalid strftime formatsLibravatar Johannes Schindelin2-0/+14
On Windows, strftime() does not silently ignore invalid formats, but warns about them and then returns 0 and sets errno to EINVAL. Unfortunately, Git does not expect such a behavior, as it disagrees with strftime()'s semantics on Linux. As a consequence, Git misinterprets the return value 0 as "I need more space" and grows the buffer. As the larger buffer does not fix the format, the buffer grows and grows and grows until we are out of memory and abort. Ideally, we would switch off the parameter validation just for strftime(), but we cannot even override the invalid parameter handler via _set_thread_local_invalid_parameter_handler() using MINGW because that function is not declared. Even _set_invalid_parameter_handler(), which *is* declared, does not help, as it simply does... nothing. So let's just bite the bullet and override strftime() for MINGW and abort on an invalid format string. While this does not provide the best user experience, it is the best we can do. See https://msdn.microsoft.com/en-us/library/fe06s4ak.aspx for more details. This fixes https://github.com/git-for-windows/git/issues/863 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21Merge branch 'bp/fsmonitor'Libravatar Junio C Hamano1-0/+22
We learned to talk to watchman to speed up "git status" and other operations that need to see which paths have been modified. * bp/fsmonitor: fsmonitor: preserve utf8 filenames in fsmonitor-watchman log fsmonitor: read entirety of watchman output fsmonitor: MINGW support for watchman integration fsmonitor: add a performance test fsmonitor: add a sample integration script for Watchman fsmonitor: add test cases for fsmonitor extension split-index: disable the fsmonitor extension when running the split index test fsmonitor: add a test tool to dump the index extension update-index: add fsmonitor support to update-index ls-files: Add support in ls-files to display the fsmonitor valid bit fsmonitor: add documentation for the fsmonitor extension. fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files. update-index: add a new --force-write-index option preload-index: add override to enable testing preload-index bswap: add 64 bit endianness helper get_be64
2017-11-15Merge branch 'tz/fsf-address-update'Libravatar Junio C Hamano10-28/+18
* tz/fsf-address-update: Replace Free Software Foundation address in license notices Replace Free Software Foundation address in license notices
2017-11-09Replace Free Software Foundation address in license noticesLibravatar Todd Zullinger10-28/+18
The mailing address for the FSF has changed over the years. Rather than updating the address across all files, refer readers to gnu.org, as the GNU GPL documentation now suggests for license notices. The mailing address is retained in the full license files (COPYING and LGPL-2.1). The old address is still present in t/diff-lib/COPYING. This is intentional, as the file is used in tests and the contents are not expected to change. Signed-off-by: Todd Zullinger <tmz@pobox.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-02mingw: optionally redirect stderr/stdout via the same handleLibravatar Johannes Schindelin1-0/+15
The "2>&1" notation in Powershell and in Unix shells implies that stderr is redirected to the same handle into which stdout is already written. Let's use this special value to allow the same trick with GIT_REDIRECT_STDERR and GIT_REDIRECT_STDOUT: if the former's value is `2>&1`, then stderr will simply be written to the same handle as stdout. The functionality was suggested by Jeff Hostetler. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-02mingw: add experimental feature to redirect standard handlesLibravatar Johannes Schindelin1-0/+43
Particularly when calling Git from applications, such as Visual Studio's Team Explorer, it is important that stdin/stdout/stderr are closed properly. However, when spawning processes on Windows, those handles must be marked as inheritable if we want to use them, but that flag is a global flag and may very well be used by other spawned processes which then do not know to close those handles. Let's introduce a set of environment variables (GIT_REDIRECT_STDIN and friends) that specify paths to files, or even better, named pipes (which are similar to Unix sockets) and that are used by the spawned Git process. This helps work around above-mentioned issue: those named pipes will be opened in a non-inheritable way upon startup, and no handles are passed around (and therefore no inherited handles need to be closed by any spawned child). This feature shipped with Git for Windows (marked as experimental) since v2.11.0(2), so it has seen some serious testing in the meantime. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-11Merge branch 'ds/avoid-overflow-in-midpoint-computation'Libravatar Junio C Hamano2-3/+3
Code clean-up. * ds/avoid-overflow-in-midpoint-computation: cleanup: fix possible overflow errors in binary search
2017-10-10cleanup: fix possible overflow errors in binary searchLibravatar Derrick Stolee2-3/+3
A common mistake when writing binary search is to allow possible integer overflow by using the simple average: mid = (min + max) / 2; Instead, use the overflow-safe version: mid = min + (max - min) / 2; This translation is safe since the operation occurs inside a loop conditioned on "min < max". The included changes were found using the following git grep: git grep '/ *2;' '*.c' Making this cleanup will prevent future review friction when a new binary search is contructed based on existing code. Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-07Merge branch 'rb/compat-poll-fix'Libravatar Junio C Hamano1-0/+4
Backports a moral equivalent of 2015 fix to the poll emulation from the upstream gnulib to fix occasional breakages on HPE NonStop. * rb/compat-poll-fix: poll.c: always set revents, even if to zero
2017-09-29poll.c: always set revents, even if to zeroLibravatar Randall S. Becker1-0/+4
Match what is done to pfd[i].revents when compute_revents() returns 0 to the upstream gnulib's commit d42461c3 ("poll: fixes for large fds", 2015-02-20). The revents field is set to 0, without incrementing the value rc to be returned from the function. The original code left the field to whatever random value the field was initialized to. This fixes occasional hangs in git-upload-pack on HPE NonStop. Signed-off-by: Randall S. Becker <randall.becker@nexbridge.ca> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-26Win32: simplify loading of DLL functionsLibravatar Johannes Schindelin1-0/+57
Dynamic loading of DLL functions is duplicated in several places in Git for Windows' source code. This patch adds a pair of macros to simplify the process: the DECLARE_PROC_ADDR(<dll>, <return-type>, <function-name>, ...<function-parameter-types>...) macro to be used at the beginning of a code block, and the INIT_PROC_ADDR(<function-name>) macro to call before using the declared function. The return value of the INIT_PROC_ADDR() call has to be checked; If it is NULL, the function was not found in the specified DLL. Example: DECLARE_PROC_ADDR(kernel32.dll, BOOL, CreateHardLinkW, LPCWSTR, LPCWSTR, LPSECURITY_ATTRIBUTES); if (!INIT_PROC_ADDR(CreateHardLinkW)) return error("Could not find CreateHardLinkW() function"; if (!CreateHardLinkW(source, target, NULL)) return error("could not create hardlink from %S to %S", source, target); return 0; Signed-off-by: Karsten Blees <blees@dcon.de> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24bswap: add 64 bit endianness helper get_be64Libravatar Ben Peart1-0/+22
Add a new get_be64 macro to enable 64 bit endian conversions on memory that may or may not be aligned. Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-10Merge branch 'rs/win32-syslog-leakfix' into maintLibravatar Junio C Hamano1-0/+2
Memory leak in an error codepath has been plugged. * rs/win32-syslog-leakfix: win32: plug memory leak on realloc() failure in syslog()
2017-08-23Merge branch 'rs/bswap-ubsan-fix' into maintLibravatar Junio C Hamano1-14/+24
Code clean-up. * rs/bswap-ubsan-fix: bswap: convert get_be16, get_be32 and put_be32 to inline functions bswap: convert to unsigned before shifting in get_be32
2017-08-22Merge branch 'rs/win32-syslog-leakfix'Libravatar Junio C Hamano1-0/+2
Memory leak in an error codepath has been plugged. * rs/win32-syslog-leakfix: win32: plug memory leak on realloc() failure in syslog()
2017-08-11Merge branch 'rs/bswap-ubsan-fix'Libravatar Junio C Hamano1-14/+24
Code clean-up. * rs/bswap-ubsan-fix: bswap: convert get_be16, get_be32 and put_be32 to inline functions bswap: convert to unsigned before shifting in get_be32
2017-08-10win32: plug memory leak on realloc() failure in syslog()Libravatar René Scharfe1-0/+2
If realloc() fails then the original buffer is still valid. Free it before exiting the function. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-18Merge branch 'tb/push-to-cygwin-unc-path'Libravatar Junio C Hamano2-0/+21
On Cygwin, similar to Windows, "git push //server/share/repository" ought to mean a repository on a network share that can be accessed locally, but this did not work correctly due to stripping the double slashes at the beginning. This may need to be heavily tested before it gets unleashed to the wild, as the change is at a fairly low-level code and would affect not just the code to decide if the push destination is local. There may be unexpected fallouts in the path normalization. * tb/push-to-cygwin-unc-path: cygwin: allow pushing to UNC paths
2017-07-17bswap: convert get_be16, get_be32 and put_be32 to inline functionsLibravatar René Scharfe1-14/+24
Simplify the implementation and allow callers to use expressions with side-effects by turning the macros get_be16, get_be32 and put_be32 into inline functions. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-17bswap: convert to unsigned before shifting in get_be32Libravatar René Scharfe1-4/+4
The pointer p is dereferenced and we get an unsigned char. Before shifting it's automatically promoted to int. Left-shifting a signed 32-bit value bigger than 127 by 24 places is undefined. Explicitly convert to a 32-bit unsigned type to avoid undefined behaviour if the highest bit is set. Found with Clang's UBSan. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-05cygwin: allow pushing to UNC pathsLibravatar Torsten Bögershausen2-0/+21
cygwin can use an UNC path like //server/share/repo $ cd //server/share/dir $ mkdir test $ cd test $ git init --bare However, when we try to push from a local Git repository to this repo, there is a problem: Git converts the leading "//" into a single "/". As cygwin handles an UNC path so well, Git can support them better: - Introduce cygwin_offset_1st_component() which keeps the leading "//", similar to what Git for Windows does. - Move CYGWIN out of the POSIX in the tests for path normalization in t0060 Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-27Spelling fixesLibravatar Ville Skyttä1-1/+1
Signed-off-by: Ville Skyttä <ville.skytta@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-24Merge branch 'bw/config-h'Libravatar Junio C Hamano1-0/+1
Fix configuration codepath to pay proper attention to commondir that is used in multi-worktree situation, and isolate config API into its own header file. * bw/config-h: config: don't implicitly use gitdir or commondir config: respect commondir setup: teach discover_git_directory to respect the commondir config: don't include config.h by default config: remove git_config_iter config: create config.h
2017-06-15config: don't include config.h by defaultLibravatar Brandon Williams1-0/+1
Stop including config.h by default in cache.h. Instead only include config.h in those files which require use of the config system. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-13Merge branch 'nd/fopen-errors'Libravatar Junio C Hamano2-2/+4
We often try to open a file for reading whose existence is optional, and silently ignore errors from open/fopen; report such errors if they are not due to missing files. * nd/fopen-errors: mingw_fopen: report ENOENT for invalid file names mingw: verify that paths are not mistaken for remote nicknames log: fix memory leak in open_next_file() rerere.c: move error_errno() closer to the source system call print errno when reporting a system call error wrapper.c: make warn_on_inaccessible() static wrapper.c: add and use fopen_or_warn() wrapper.c: add and use warn_on_fopen_errors() config.mak.uname: set FREAD_READS_DIRECTORIES for Darwin, too config.mak.uname: set FREAD_READS_DIRECTORIES for Linux and FreeBSD clone: use xfopen() instead of fopen() use xfopen() in more places git_fopen: fix a sparse 'not declared' warning
2017-06-05Merge branch 'js/bs-is-a-dir-sep-on-windows' into maintLibravatar Junio C Hamano1-1/+5
"foo\bar\baz" in "git fetch foo\bar\baz", even though there is no slashes in it, cannot be a nickname for a remote on Windows, as that is likely to be a pathname on a local filesystem. * js/bs-is-a-dir-sep-on-windows: Windows: do not treat a path with backslashes as a remote's nick name mingw.h: permit arguments with side effects for is_dir_sep
2017-06-02Merge branch 'rs/mingw-path-lookup-simplify'Libravatar Junio C Hamano1-70/+23
Code simplification. * rs/mingw-path-lookup-simplify: mingw: simplify PATH handling
2017-06-02Merge branch 'js/bs-is-a-dir-sep-on-windows'Libravatar Junio C Hamano1-1/+5
"foo\bar\baz" in "git fetch foo\bar\baz", even though there is no slashes in it, cannot be a nickname for a remote on Windows, as that is likely to be a pathname on a local filesystem. * js/bs-is-a-dir-sep-on-windows: Windows: do not treat a path with backslashes as a remote's nick name mingw.h: permit arguments with side effects for is_dir_sep
2017-06-02mingw_fopen: report ENOENT for invalid file namesLibravatar Johannes Sixt1-0/+2
On Windows, certain characters are prohibited in file names, most prominently the colon. When fopen() is called with such an invalid file name, the underlying Windows API actually reports a particular error, but since there is no suitable errno value, this error is translated to EINVAL. Detect the case and report ENOENT instead. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-26git_fopen: fix a sparse 'not declared' warningLibravatar Ramsay Jones1-2/+2
If git is built with the FREAD_READS_DIRECTORIES build variable set, this would cause sparse to issue a 'not declared, should it be static?' warning on Linux. This is a result of the method employed by 'compat/fopen.c' to suppress the (possible) redefinition of the (system) fopen macro, which also removes the extern declaration of the git_fopen function. In order to suppress the warning, introduce a new macro to suppress the definition (or possibly the re-definition) of the fopen symbol as a macro override. This new macro (SUPPRESS_FOPEN_REDEFINITION) is only defined in 'compat/fopen.c', just prior to the inclusion of the 'git-compat-util.h' header file. Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-23mingw: simplify PATH handlingLibravatar René Scharfe1-68/+23
On Windows the environment variable PATH contains a semicolon-separated list of directories to search for, in order, when looking for the location of a binary to run. get_path_split() parses it and returns an array of string copies, which is iterated by path_lookup(), which in turn passes each entry to lookup_prog(). Change lookup_prog() to take the directory name as a length-limited string instead of as a NUL-terminated one and parse PATH directly in path_lookup(). This avoids memory allocations, simplifying the code. Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Rene Scharfe <l.s.r@web.de> Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-23mingw.h: permit arguments with side effects for is_dir_sepLibravatar Johannes Sixt1-1/+5
Taking git-compat-util.h's cue (which uses an inline function to back is_dir_sep()), let's use an inline function to back also the Windows version of is_dir_sep(). This avoids problems when calling the function with arguments that do more than just provide a single character, e.g. incrementing a pointer. Example: is_dir_sep(*p++) Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08winansi: avoid buffer overrunLibravatar Johannes Schindelin1-0/+5
When we could not convert the UTF-8 sequence into Unicode for writing to the Console, we should not try to write an insanely-long sequence of invalid wide characters (mistaking the negative return value for an unsigned length). Reported by Coverity. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08winansi: avoid use of uninitialized valueLibravatar Johannes Schindelin1-0/+7
To initialize the foreground color attributes of "plain text", our ANSI emulation tries to infer them from the currently attached console while running the is_console() function. This function first tries to detect any console attached to stdout, then it is called with stderr. If neither stdout nor stderr has any console attached, it does not actually matter what we use for "plain text" attributes, as we never need to output any text to any console in that case. However, after working on stdout and stderr, is_console() is called with stdin, and it still tries to initialize the "plain text" attributes if they had not been initialized earlier. In this case, we cannot detect any attributes, and we used an uninitialized value for them. Naturally, Coverity complained about this use case because it could not reason about the code deeply enough to figure out that we do not even use those attributes in that case. Let's just initialize the value to 0 in that case, both to avoid future Coverity reports, and to help catch future regressions in case anybody changes the order of the is_console() calls (which would make the text black on black). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08mingw: avoid memory leak when splitting PATHLibravatar Johannes Schindelin1-1/+3
In the (admittedly, concocted) case that PATH consists only of path delimiters, we would leak the duplicated string. Reported by Coverity. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-16Merge branch 'js/mingw-isatty'Libravatar Junio C Hamano1-0/+4
A hotfix for a topic already in 'master'. * js/mingw-isatty: mingw: make stderr unbuffered again
2017-02-14mingw: make stderr unbuffered againLibravatar Johannes Schindelin1-0/+4
When removing the hack for isatty(), we actually removed more than just an isatty() hack: we removed the hack where internal data structures of the MSVC runtime are modified in order to redirect stdout/stderr. Instead of using that hack (that does not work with newer versions of the runtime, anyway), we replaced it by reopening the respective file descriptors. What we forgot was to mark stderr as unbuffered again. Reported by Hannes Sixt. Fixed with Jeff Hostetler's assistance. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Tested-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-31Merge branch 'rs/qsort-s'Libravatar Junio C Hamano1-0/+69
A few codepaths had to rely on a global variable when sorting elements of an array because sort(3) API does not allow extra data to be passed to the comparison function. Use qsort_s() when natively available, and a fallback implementation of it when not, to eliminate the need, which is a prerequisite for making the codepath reentrant. * rs/qsort-s: ref-filter: use QSORT_S in ref_array_sort() string-list: use QSORT_S in string_list_sort() perf: add basic sort performance test add QSORT_S compat: add qsort_s()
2017-01-31Merge branch 'js/mingw-isatty'Libravatar Junio C Hamano1-7/+4
An update to a topic that is already in 'master'. * js/mingw-isatty: mingw: follow-up to "replace isatty() hack"
2017-01-23compat: add qsort_s()Libravatar René Scharfe1-0/+69
The function qsort_s() was introduced with C11 Annex K; it provides the ability to pass a context pointer to the comparison function, supports the convention of using a NULL pointer for an empty array and performs a few safety checks. Add an implementation based on compat/qsort.c for platforms that lack a native standards-compliant qsort_s() (i.e. basically everyone). It doesn't perform the full range of possible checks: It uses size_t instead of rsize_t and doesn't check nmemb and size against RSIZE_MAX because we probably don't have the restricted size type defined. For the same reason it returns int instead of errno_t. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-18mingw: follow-up to "replace isatty() hack"Libravatar Johannes Schindelin1-7/+4
The version of the "replace isatty() hack" that got merged a few weeks ago did not actually reflect the latest iteration of the patch series: v3 was sent out with these changes, as requested by the reviewer Johannes Sixt: - reworded the comment about "recycling handles" - moved the reassignment of the `console` variable before the dup2() call so that it is valid at all times - removed the "handle = INVALID_HANDLE_VALUE" assignment, as the local variable `handle` is not used afterwards anyway Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-17Merge branch 'mk/mingw-winansi-ttyname-termination-fix' into maintLibravatar Junio C Hamano1-1/+1
A potential but unlikely buffer overflow in Windows port has been fixed. * mk/mingw-winansi-ttyname-termination-fix: mingw: consider that UNICODE_STRING::Length counts bytes
2016-12-27Merge branch 'js/mingw-isatty'Libravatar Junio C Hamano1-114/+84
Update the isatty() emulation for Windows by updating the previous hack that depended on internals of (older) MSVC runtime. * js/mingw-isatty: mingw: replace isatty() hack mingw: fix colourization on Cygwin pseudo terminals mingw: adjust is_console() to work with stdin
2016-12-27Merge branch 'mk/mingw-winansi-ttyname-termination-fix'Libravatar Junio C Hamano1-1/+1
A potential but unlikely buffer overflow in Windows port has been fixed. * mk/mingw-winansi-ttyname-termination-fix: mingw: consider that UNICODE_STRING::Length counts bytes
2016-12-22mingw: replace isatty() hackLibravatar Jeff Hostetler1-107/+69
Git for Windows has carried a patch that depended on internals of MSVC runtime, but it does not work correctly with recent MSVC runtime. A replacement was written originally for compiling with VC++. The patch in this message is a backport of that replacement, and it also fixes the previous attempt to make isatty() tell that /dev/null is *not* an interactive terminal. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Tested-by: Beat Bolli <dev+git@drbeat.li> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-22mingw: fix colourization on Cygwin pseudo terminalsLibravatar Alan Davies1-2/+6
Git only colours the output and uses pagination if isatty() returns 1. MSYS2 and Cygwin emulate pseudo terminals via named pipes, meaning that isatty() returns 0. f7f90e0f4f (mingw: make isatty() recognize MSYS2's pseudo terminals (/dev/pty*), 2016-04-27) fixed this for MSYS2 terminals, but not for Cygwin. The named pipes that Cygwin and MSYS2 use are very similar. MSYS2 PTY pipes are called 'msys-*-pty*' and Cygwin uses 'cygwin-*-pty*'. This commit modifies the existing check to allow both MSYS2 and Cygwin PTY pipes to be identified as TTYs. Note that pagination is still broken when running Git for Windows from within Cygwin, as MSYS2's less.exe is spawned (and does not like to interact with Cygwin's PTY). This partially fixes https://github.com/git-for-windows/git/issues/267 Signed-off-by: Alan Davies <alan.n.davies@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-22mingw: adjust is_console() to work with stdinLibravatar Johannes Schindelin1-1/+5
When determining whether a handle corresponds to a *real* Win32 Console (as opposed to, say, a character device such as /dev/null), we use the GetConsoleOutputBufferInfo() function as a tell-tale. However, that does not work for *input* handles associated with a console. Let's just use the GetConsoleMode() function for input handles, and since it does not work on output handles fall back to the previous method for those. This patch prepares for using is_console() instead of my previous misguided attempt in cbb3f3c9b1 (mingw: intercept isatty() to handle /dev/null as Git expects it, 2016-12-11) that broke everything on Windows. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>