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2019-10-15Merge branch 'js/azure-pipelines-msvc'Libravatar Junio C Hamano4-2/+55
CI updates. * js/azure-pipelines-msvc: ci: also build and test with MS Visual Studio on Azure Pipelines ci: really use shallow clones on Azure Pipelines tests: let --immediate and --write-junit-xml play well together test-tool run-command: learn to run (parts of) the testsuite vcxproj: include more generated files vcxproj: only copy `git-remote-http.exe` once it was built msvc: work around a bug in GetEnvironmentVariable() msvc: handle DEVELOPER=1 msvc: ignore some libraries when linking compat/win32/path-utils.h: add #include guards winansi: use FLEX_ARRAY to avoid compiler warning msvc: avoid using minus operator on unsigned types push: do not pretend to return `int` from `die_push_simple()`
2019-10-09Merge branch 'js/diff-rename-force-stable-sort'Libravatar Junio C Hamano2-70/+3
The rename detection logic sorts a list of rename source candidates by similarity to pick the best candidate, which means that a tie between sources with the same similarity is broken by the original location in the original candidate list (which is sorted by path). Force the sorting by similarity done with a stable sort, which is not promised by system supplied qsort(3), to ensure consistent results across platforms. * js/diff-rename-force-stable-sort: diffcore_rename(): use a stable sort Move git_sort(), a stable sort, into into libgit.a
2019-10-06msvc: work around a bug in GetEnvironmentVariable()Libravatar Johannes Schindelin1-0/+2
The return value of that function is 0 both for variables that are unset, as well as for variables whose values are empty. To discern those two cases, one has to call `GetLastError()`, whose return value is `ERROR_ENVVAR_NOT_FOUND` and `ERROR_SUCCESS`, respectively. Except that it is not actually set to `ERROR_SUCCESS` in the latter case, apparently, but the last error value seems to be simply unchanged. To work around this, let's just re-set the last error value just before inspecting the environment variable. This fixes a problem that triggers failures in t3301-notes.sh (where we try to override config settings by passing empty values for certain environment variables). This problem is hidden in the MINGW build by the fact that older MSVC runtimes (such as the one used by MINGW builds) have a `calloc()` that re-sets the last error value in case of success, while newer runtimes set the error value only if `NULL` is returned by that function. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-06msvc: handle DEVELOPER=1Libravatar Johannes Schindelin1-0/+46
We frequently build Git using the `DEVELOPER=1` make setting as a shortcut to enable all kinds of more stringent compiler warnings. Those compiler warnings are relatively specific to GCC, though, so let's try our best to translate them to the equivalent options to pass to MS Visual C++'s `cl.exe`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-06msvc: ignore some libraries when linkingLibravatar Johannes Schindelin1-1/+1
To build with MSVC, we "translate" GCC options to MSVC options, and part of those options refer to the libraries to link into the final executable. Currently, this part looks somewhat like this on Windows: -lcurl -lnghttp2 -lidn2 -lssl -lcrypto -lssl -lcrypto -lgdi32 -lcrypt32 -lwldap32 -lz -lws2_32 -lexpat Some of those are direct dependencies (such as curl and ssl) and others are indirect (nghttp2 and idn2, for example, are dependencies of curl, but need to be linked in for reasons). We already handle the direct dependencies, e.g. `-liconv` is already handled as adding `libiconv.lib` to the list of libraries to link against. Let's just ignore the remaining `-l*` options so that MSVC does not have to warn us that it ignored e.g. the `/lnghttp2` option. We do that by extending the clause that already "eats" the `-R*` options to also eat the `-l*` options. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-06compat/win32/path-utils.h: add #include guardsLibravatar Johannes Schindelin1-0/+5
This adds the common guards that allow headers to be #include'd multiple times. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-06winansi: use FLEX_ARRAY to avoid compiler warningLibravatar Johannes Schindelin1-1/+1
MSVC would complain thusly: C4200: nonstandard extension used: zero-sized array in struct/union Let's just use the `FLEX_ARRAY` constant that we introduced for exactly this type of scenario. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-02Move git_sort(), a stable sort, into into libgit.aLibravatar Johannes Schindelin2-70/+3
The `qsort()` function is not guaranteed to be stable, i.e. it does not promise to maintain the order of items it is told to consider equal. In contrast, the `git_sort()` function we carry in `compat/qsort.c` _is_ stable, by virtue of implementing a merge sort algorithm. In preparation for using a stable sort in Git's rename detection, move the stable sort into `libgit.a` so that it is compiled in unconditionally, and rename it to `git_stable_qsort()`. Note: this also makes the hack obsolete that was introduced in fe21c6b285d (mingw: reencode environment variables on the fly (UTF-16 <-> UTF-8), 2018-10-30), where we included `compat/qsort.c` directly in `compat/mingw.c` to use the stable sort. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-09-30Merge branch 'ar/mingw-run-external-with-non-ascii-path'Libravatar Junio C Hamano1-4/+11
Windows update. * ar/mingw-run-external-with-non-ascii-path: mingw: fix launching of externals from Unicode paths
2019-09-30Merge branch 'dl/compat-cleanup'Libravatar Junio C Hamano3-8/+8
Code cleanup. * dl/compat-cleanup: compat/*.[ch]: remove extern from function declarations using spatch mingw: apply array.cocci rule
2019-09-05compat/*.[ch]: remove extern from function declarations using spatchLibravatar Denton Liu2-6/+6
In 554544276a (*.[ch]: remove extern from function declarations using spatch, 2019-04-29), we removed externs from function declarations using spatch but we intentionally excluded files under compat/ since some are directly copied from an upstream and we should avoid churning them so that manually merging future updates will be simpler. In the last commit, we determined the files which taken from an upstream so we can exclude them and run spatch on the remainder. This was the Coccinelle patch used: @@ type T; identifier f; @@ - extern T f(...); and it was run with: $ git ls-files compat/\*\*.{c,h} | xargs spatch --sp-file contrib/coccinelle/noextern.cocci --in-place $ git checkout -- \ compat/regex/ \ compat/inet_ntop.c \ compat/inet_pton.c \ compat/nedmalloc/ \ compat/obstack.{c,h} \ compat/poll/ Coccinelle has some trouble dealing with `__attribute__` and varargs so we ran the following to ensure that no remaining changes were left behind: $ git ls-files compat/\*\*.{c,h} | xargs sed -i'' -e 's/^\(\s*\)extern \([^(]*([^*]\)/\1\2/' $ git checkout -- \ compat/regex/ \ compat/inet_ntop.c \ compat/inet_pton.c \ compat/nedmalloc/ \ compat/obstack.{c,h} \ compat/poll/ Signed-off-by: Denton Liu <liu.denton@gmail.com> Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-09-05mingw: apply array.cocci ruleLibravatar Denton Liu1-2/+2
After running Coccinelle on all sources inside compat/ that were created by us[1], it was found that compat/mingw.c violated an array.cocci rule in two places and, thus, a patch was generated. Apply this patch so that all compat/ sources created by us follows all cocci rules. [1]: Do not run Coccinelle on files that are taken from some upstream because in case we need to pull updates from them, we would like to have diverged as little as possible in order to make merging updates simpler. The following sources were determined to have been taken from some upstream: * compat/regex/ * compat/inet_ntop.c * compat/inet_pton.c * compat/nedmalloc/ * compat/obstack.{c,h} * compat/poll/ Signed-off-by: Denton Liu <liu.denton@gmail.com> Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-26mingw: fix launching of externals from Unicode pathsLibravatar Adam Roben1-4/+11
If Git were installed in a path containing non-ASCII characters, commands such as `git am` and `git submodule`, which are implemented as externals, would fail to launch with the following error: > fatal: 'am' appears to be a git command, but we were not > able to execute it. Maybe git-am is broken? This was due to lookup_prog not being Unicode-aware. It was somehow missed in 85faec9d3a (Win32: Unicode file name support (except dirent), 2012-03-15). Note that the only problem in this function was calling `GetFileAttributes()` instead of `GetFileAttributesW()`. The calls to `access()` were fine because `access()` is a macro which resolves to `mingw_access()`, which already handles Unicode correctly. But `lookup_prog()` was changed to use `_waccess()` directly so that we only convert the path to UTF-16 once. To make things work correctly, we have to maintain UTF-8 and UTF-16 versions in tandem in `lookup_prog()`. Signed-off-by: Adam Roben <adam@roben.org> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-22Merge branch 'rs/nedalloc-fixlets'Libravatar Junio C Hamano1-3/+3
Compilation fix. * rs/nedalloc-fixlets: nedmalloc: avoid compiler warning about unused value nedmalloc: do assignments only after the declaration section
2019-08-07nedmalloc: avoid compiler warning about unused valueLibravatar René Scharfe1-2/+2
Cast the evaluated value of the macro INITIAL_LOCK to void to instruct the compiler that we're not interested in said value nor the following warning: In file included from compat/nedmalloc/nedmalloc.c:63: compat/nedmalloc/malloc.c.h: In function ‘init_user_mstate’: compat/nedmalloc/malloc.c.h:1706:62: error: right-hand operand of comma expression has no effect [-Werror=unused-value] 1706 | #define INITIAL_LOCK(sl) (memset(sl, 0, sizeof(MLOCK_T)), 0) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ compat/nedmalloc/malloc.c.h:5020:3: note: in expansion of macro ‘INITIAL_LOCK’ 5020 | INITIAL_LOCK(&m->mutex); | ^~~~~~~~~~~~ Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-07nedmalloc: do assignments only after the declaration sectionLibravatar René Scharfe1-1/+1
Avoid the following compiler warning: In file included from compat/nedmalloc/nedmalloc.c:63: compat/nedmalloc/malloc.c.h: In function ‘pthread_release_lock’: compat/nedmalloc/malloc.c.h:1759:5: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement] 1759 | volatile unsigned int* lp = &sl->l; | ^~~~~~~~ Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-02Merge branch 'js/visual-studio'Libravatar Junio C Hamano1-0/+23
Support building Git with Visual Studio The bits about .git/branches/* have been dropped from the series. We may want to drop the support for it, but until that happens, the tests should rely on the existence of the support to pass. * js/visual-studio: (23 commits) git: avoid calling aliased builtins via their dashed form bin-wrappers: append `.exe` to target paths if necessary .gitignore: ignore Visual Studio's temporary/generated files .gitignore: touch up the entries regarding Visual Studio vcxproj: also link-or-copy builtins msvc: add a Makefile target to pre-generate the Visual Studio solution contrib/buildsystems: add a backend for modern Visual Studio versions contrib/buildsystems: handle options starting with a slash contrib/buildsystems: also handle -lexpat contrib/buildsystems: handle libiconv, too contrib/buildsystems: handle the curl library option contrib/buildsystems: error out on unknown option contrib/buildsystems: optionally capture the dry-run in a file contrib/buildsystems: redirect errors of the dry run into a log file contrib/buildsystems: ignore gettext stuff contrib/buildsystems: handle quoted spaces in filenames contrib/buildsystems: fix misleading error message contrib/buildsystems: ignore irrelevant files in Generators/ contrib/buildsystems: ignore invalidcontinue.obj Vcproj.pm: urlencode '<' and '>' when generating VC projects ...
2019-07-29msvc: add a Makefile target to pre-generate the Visual Studio solutionLibravatar Johannes Schindelin1-0/+23
The entire idea of generating the VS solution makes only sense if we generate it via Continuous Integration; otherwise potential users would still have to download the entire Git for Windows SDK. If we pre-generate the Visual Studio solution, Git can be built entirely within Visual Studio, and the test scripts can be run in a regular Git for Windows (e.g. the Portable Git flavor, which does not include a full GCC toolchain and therefore weighs only about a tenth of Git for Windows' SDK). So let's just add a target in the Makefile that can be used to generate said solution; The generated files will then be committed so that they can be pushed to a branch ready to check out by Visual Studio users. To make things even more useful, we also generate and commit other files that are required to run the test suite, such as templates and bin-wrappers: with this, developers can run the test suite in a regular Git Bash after building the solution in Visual Studio. Note: for this build target, we do not actually need to initialize the `vcpkg` system, so we don't. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-25Merge branch 'js/mingw-spawn-with-spaces-in-path'Libravatar Junio C Hamano1-3/+5
Window 7 update ;-) * js/mingw-spawn-with-spaces-in-path: mingw: support spawning programs containing spaces in their names
2019-07-19Merge branch 'kb/mingw-set-home'Libravatar Junio C Hamano1-0/+24
Windows port update. * kb/mingw-set-home: mingw: initialize HOME on startup
2019-07-16mingw: support spawning programs containing spaces in their namesLibravatar Johannes Schindelin1-3/+5
On some older Windows versions (e.g. Windows 7), the CreateProcessW() function does not really support spaces in its first argument, lpApplicationName. But it supports passing NULL as lpApplicationName, which makes it figure out the application from the (possibly quoted) first argument of lpCommandLine. Let's use that trick (if we are certain that the first argument matches the executable's path) to support launching programs whose path contains spaces. We will abuse the test-fake-ssh.exe helper to verify that this works and does not regress. This fixes https://github.com/git-for-windows/git/issues/692 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-11Merge branch 'js/mingw-use-utf8'Libravatar Junio C Hamano3-8/+16
Windows update. * js/mingw-use-utf8: mingw: fix possible buffer overrun when calling `GetUserNameW()` mingw: use Unicode functions explicitly mingw: get pw_name in UTF-8 format
2019-07-11Merge branch 'cb/windows-manifest'Libravatar Junio C Hamano1-0/+25
Windows update. * cb/windows-manifest: mingw: embed a manifest to trick UAC into Doing The Right Thing
2019-07-09Merge branch 'jh/msvc'Libravatar Junio C Hamano11-37/+481
Support to build with MSVC has been updated. * jh/msvc: msvc: ignore .dll and incremental compile output msvc: avoid debug assertion windows in Debug Mode msvc: do not pretend to support all signals msvc: add pragmas for common warnings msvc: add a compile-time flag to allow detailed heap debugging msvc: support building Git using MS Visual C++ msvc: update Makefile to allow for spaces in the compiler path msvc: fix detect_msys_tty() msvc: define ftello() msvc: do not re-declare the timespec struct msvc: mark a variable as non-const msvc: define O_ACCMODE msvc: include sigset_t definition msvc: fix dependencies of compat/msvc.c mingw: replace mingw_startup() hack obstack: fix compiler warning cache-tree/blame: avoid reusing the DEBUG constant t0001 (mingw): do not expect a specific order of stdout/stderr Mark .bat files as requiring CR/LF endings mingw: fix a typo in the msysGit-specific section
2019-07-08mingw: initialize HOME on startupLibravatar Karsten Blees1-0/+24
HOME initialization was historically duplicated in many different places, including /etc/profile, launch scripts such as git-bash.vbs and gitk.cmd, and (although slightly broken) in the git-wrapper. Even unrelated projects such as GitExtensions and TortoiseGit need to implement the same logic to be able to call git directly. Initialize HOME in git's own startup code so that we can eventually retire all the duplicate initialization code. Signed-off-by: Karsten Blees <blees@dcon.de> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-08mingw: fix possible buffer overrun when calling `GetUserNameW()`Libravatar Johannes Schindelin1-1/+1
In 39a98e9b68b8 (mingw: get pw_name in UTF-8 format, 2019-06-27), this developer missed the fact that the `GetUserNameW()` function takes the number of characters as `len` parameter, not the number of bytes. Reported-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>
2019-06-27mingw: use Unicode functions explicitlyLibravatar Johannes Schindelin3-6/+8
Many Win32 API functions actually exist in two variants: one with the `A` suffix that takes ANSI parameters (`char *` or `const char *`) and one with the `W` suffix that takes Unicode parameters (`wchar_t *` or `const wchar_t *`). The ANSI variant assumes that the strings are encoded according to whatever is the current locale. This is not what Git wants to use on Windows: we assume that `char *` variables point to strings encoded in UTF-8. There is a pseudo UTF-8 locale on Windows, but it does not work as one might expect. In addition, if we overrode the user's locale, that would modify the behavior of programs spawned by Git (such as editors, difftools, etc), therefore we cannot use that pseudo locale. Further, it is actually highly encouraged to use the Unicode versions instead of the ANSI versions, so let's do precisely that. Note: when calling the Win32 API functions _without_ any suffix, it depends whether the `UNICODE` constant is defined before the relevant headers are #include'd. Without that constant, the ANSI variants are used. Let's be explicit and avoid that ambiguity. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-27mingw: get pw_name in UTF-8 formatLibravatar Johannes Schindelin1-2/+8
Previously, we would have obtained the user name encoded in whatever the current code page is. Note: the "user name" here does not denote the full name but instead the short logon name. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-27mingw: embed a manifest to trick UAC into Doing The Right ThingLibravatar Cesar Eduardo Barros1-0/+25
On Windows >= Vista, not having an application manifest with a requestedExecutionLevel can cause several kinds of confusing behavior. The first and more obvious behavior is "Installer Detection" of the "User Account Control" (also known as "UAC") feature, where Windows sometimes decides (by looking at things like the file name and even sequences of bytes within the executable) that an executable is an installer and should run elevated (causing the well-known popup dialog to appear). In Git's context, subcommands such as "git patch-id" or "git update-index" fall prey to this behavior. The second and more confusing behavior is "File Virtualization". It means that when files are written without having write permission, it does not fail (as expected), but they are instead redirected to somewhere else. When the files are read, the original contents are returned, though, not the ones that were just written somewhere else. Even more confusing, not all write accesses are redirected; Trying to write to write-protected .exe files, for example, will fail instead of redirecting. In addition to being unwanted behavior, File Virtualization causes dramatic slowdowns in Git (see for instance http://code.google.com/p/msysgit/issues/detail?id=320). A third unwanted behavior of Windows >= Vista is that it lies about the Windows version when calling `GetWindowsVersionEx()`. There are two ways to prevent these unwanted behaviors: Either you embed an application manifest (which really is an XML document conforming to a specific schema) within all your executables, or you add an external manifest (a file with the same name followed by `.manifest`) to all your executables. Since Git's builtins are hardlinked (or copied), it is simpler and more robust to embed a manifest. Recent enough MSVC compilers already embed a working internal manifest, and building with mingw-w64 (which is the case in Git for Windows' SDK) does it, too, but for MinGW you have to do so by hand. In any case, it is better to be explicit about this manifest, that way changes in the compiler toolchain won't surprise us (as mingw-w64 once did when it broke `GetWindowsVersionEx()` by mistake). References: - New UAC Technologies for Windows Vista http://msdn.microsoft.com/en-us/library/bb756960.aspx - Create and Embed an Application Manifest (UAC) http://msdn.microsoft.com/en-us/library/bb756929.aspx Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-25msvc: avoid debug assertion windows in Debug ModeLibravatar Johannes Schindelin1-0/+4
For regular debugging, it is pretty helpful when a debug assertion in a running application triggers a window that offers to start the debugger. However, when running the test suite, it is not so helpful, in particular when the debug assertions are then suppressed anyway because we disable the invalid parameter checking (via invalidcontinue.obj, see the comment in config.mak.uname about that object for more information). So let's simply disable that window in Debug Mode (it is already disabled in Release Mode). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-25msvc: do not pretend to support all signalsLibravatar Jeff Hostetler1-0/+25
This special-cases various signals that are not supported on Windows, such as SIGPIPE. These cause the UCRT to throw asserts (at least in debug mode). Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-25msvc: add pragmas for common warningsLibravatar Philip Oakley1-0/+4
MSVC can be overzealous about some warnings. Disable them. Signed-off-by: Philip Oakley <philipoakley@iee.org> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-25msvc: add a compile-time flag to allow detailed heap debuggingLibravatar Jeff Hostetler1-0/+6
MS Visual C comes with a few neat features we can use to analyze the heap consumption (i.e. leaks, max memory, etc). With this patch, we introduce support via the build-time flag `USE_MSVC_CRTDBG`. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-25msvc: support building Git using MS Visual C++Libravatar Jeff Hostetler7-5/+371
With this patch, Git can be built using the Microsoft toolchain, via: make MSVC=1 [DEBUG=1] Third party libraries are built from source using the open source "vcpkg" tool set. See https://github.com/Microsoft/vcpkg On a first build, the vcpkg tools and the third party libraries are automatically downloaded and built. DLLs for the third party libraries are copied to the top-level (and t/helper) directory to facilitate debugging. See compat/vcbuild/README. A series of .bat files are invoked by the Makefile to find the location of the installed version of Visual Studio and the associated compiler tools (essentially replicating the environment setup performed by a "Developer Command Prompt"). This should find the most recent VS2015 or VS2017 installation. Output from these scripts are used by the Makefile to define compiler and linker pathnames and -I and -L arguments. The build produces .pdb files for both debug and release builds. Note: This commit was squashed from an organic series of commits developed between 2016 and 2018 in Git for Windows' `master` branch. This combined commit eliminates the obsolete commits related to fetching NuGet packages for third party libraries. It is difficult to use NuGet packages for C/C++ sources because they may be built by earlier versions of the MSVC compiler and have CRT version and linking issues. Additionally, the C/C++ NuGet packages that we were using tended to not be updated concurrently with the sources. And in the case of cURL and OpenSSL, this could expose us to security issues. Helped-by: Yue Lin Ho <b8732003@student.nsysu.edu.tw> Helped-by: Philip Oakley <philipoakley@iee.org> Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-20msvc: fix detect_msys_tty()Libravatar Jeff Hostetler1-0/+13
The ntstatus.h header is only available in MINGW. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-20msvc: define ftello()Libravatar Jeff Hostetler1-0/+2
It is just called differently in MSVC's headers. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-20msvc: do not re-declare the timespec structLibravatar Jeff Hostetler1-0/+2
VS2015's headers already declare that struct. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-20msvc: mark a variable as non-constLibravatar Jeff Hostetler1-1/+4
VS2015 complains when using a const pointer in memcpy()/free(). Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-20msvc: define O_ACCMODELibravatar Philip Oakley1-0/+2
This constant is not defined in MSVC's headers. In UCRT's fcntl.h, _O_RDONLY, _O_WRONLY and _O_RDWR are defined as 0, 1 and 2, respectively. Yes, that means that UCRT breaks with the tradition that O_RDWR == O_RDONLY | O_WRONLY. It is a perfectly legal way to define those constants, though, therefore we need to take care of defining O_ACCMODE accordingly. This is particularly important in order to keep our "open() can set errno to EISDIR" emulation working: it tests that (flags & O_ACCMODE) is not identical to O_RDONLY before going on to test specifically whether the file for which open() reported EACCES is, in fact, a directory. Signed-off-by: Philip Oakley <philipoakley@iee.org> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-20msvc: include sigset_t definitionLibravatar Philip Oakley1-0/+2
On MSVC (VS2008) sigset_t is not defined. Signed-off-by: Philip Oakley <philipoakley@iee.org> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-20mingw: replace mingw_startup() hackLibravatar Johannes Schindelin2-30/+45
Git for Windows has special code to retrieve the command-line parameters (and even the environment) in UTF-16 encoding, so that they can be converted to UTF-8. This is necessary because Git for Windows wants to use UTF-8 encoded strings throughout its code, and the main() function does not get the parameters in that encoding. To do that, we used the __wgetmainargs() function, which is not even a Win32 API function, but provided by the MINGW "runtime" instead. Obviously, this method would not work with any compiler other than GCC, and in preparation for compiling with Visual C++, we would like to avoid precisely that. Lucky us, there is a much more elegant way: we can simply implement the UTF-16 variant of `main()`: `wmain()`. To make that work, we need to link with -municode. The command-line parameters are passed to `wmain()` encoded in UTF-16, as desired, and this method also works with GCC, and also with Visual C++ after adjusting the MSVC linker flags to force it to use `wmain()`. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-20obstack: fix compiler warningLibravatar Johannes Schindelin1-1/+1
MS Visual C suggests that the construct condition ? (int) i : (ptrdiff_t) d is incorrect. Let's fix this by casting to ptrdiff_t also for the positive arm of the conditional. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-13winansi: simplify loading the GetCurrentConsoleFontEx() functionLibravatar Johannes Schindelin1-9/+5
We introduced helper macros to simplify loading functions dynamically. Might just as well use them. This also side-steps a compiler warning when building with GCC v8.x: it would complain about casting between incompatible function pointers. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-13poll (mingw): allow compiling with GCC 8 and DEVELOPER=1Libravatar Johannes Schindelin1-1/+1
The return type of the `GetProcAddress()` function is `FARPROC` which evaluates to `long long int (*)()`, i.e. it cannot be cast to the correct function signature by GCC 8. To work around that, we first cast to `void *` and go on with our merry lives. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-19Merge branch 'tt/no-ipv6-fallback-for-winxp'Libravatar Junio C Hamano2-183/+3
Code cleanup. * tt/no-ipv6-fallback-for-winxp: mingw: remove obsolete IPv6-related code
2019-05-13Merge branch 'cc/access-on-aix-workaround'Libravatar Junio C Hamano2-1/+32
Workaround for standard-compliant but less-than-useful behaviour of access(2) for the root user. * cc/access-on-aix-workaround: git-compat-util: work around for access(X_OK) under root
2019-05-07mingw: remove obsolete IPv6-related codeLibravatar Tanushree Tumane2-183/+3
To support IPv6, Git provided fall back functions for Windows versions that did not support IPv6. However, as Git dropped support for Windows XP and prior, those functions are not needed anymore. Remove those fallbacks by reverting fe3b2b7b827c (Enable support for IPv6 on MinGW, 2009-11-24) and using the functions directly (without 'ipv6_' prefix). Signed-off-by: Tanushree Tumane <tanushreetumane@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-25git-compat-util: work around for access(X_OK) under rootLibravatar Clément Chigot2-1/+32
On AIX, access(X_OK) may succeed when run as root even if the execution isn't possible. This behavior is allowed by POSIX which says: ... for a process with appropriate privileges, an implementation may indicate success for X_OK even if execute permission is not granted to any user. It can lead hook programs to have their execution refused: git commit -m content fatal: cannot exec '.git/hooks/pre-commit': Permission denied Add NEED_ACCESS_ROOT_HANDLER in order to use an access helper function. It checks with stat if any executable flags is set when the current user is root. Signed-off-by: Clément Chigot <clement.chigot@atos.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-16trace2: report peak memory usage of the processLibravatar Jeff Hostetler1-3/+47
Teach Windows version of git to report peak memory usage during exit() processing. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-16trace2: refactor setting process starting timeLibravatar Jeff Hostetler1-0/+2
Create trace2_initialize_clock() and call from main() to capture process start time in isolation and before other sub-systems are ready. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>