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2026-07-19Merge branch 'ty/migrate-ignorecase'Junio C Hamano1-1/+2
The global configuration variable 'ignore_case' (representing the 'core.ignorecase' configuration) has been migrated into 'struct repo_config_values' to tie it to a specific repository instance. * ty/migrate-ignorecase: config: use repo_ignore_case() to access core.ignorecase environment: move ignore_case into repo_config_values
2026-07-05mingw: make `exit_process()` own the process handle on all pathsJohannes Schindelin1-0/+1
After "mingw: kill child processes in a gentler way", the ownership of the HANDLE passed to `exit_process()` and `terminate_process_tree()` is inconsistent. `terminate_process_tree()` always closes the handle; `exit_process()` closes it on success and on the terminate-tree fallback, but leaks it on the early return where GetExitCodeProcess() fails or reports the process is no longer STILL_ACTIVE. `mingw_kill()` compensated by closing the handle on its own error path, which is a double-close on every error path that does not hit that one leaky branch -- the callee has already closed the handle by then. Coverity flagged the resulting use-after-free as CID 1437238. Pin down the invariant that `exit_process()` and `terminate_process_tree()` own the handle from the call onward and close it on every return path; with that, the bogus close in `mingw_kill()` goes away. Assisted-by: Opus 4.7 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-19config: use repo_ignore_case() to access core.ignorecaseTian Yuchen1-1/+2
Replace the accesses to the global 'ignore_case' variable with calls to 'repo_ignore_case(the_repository)'. This step eliminates the 'ignore_case' global state. Note on compat/win32/path-utils.c: To eliminate the global state, several helper functions (e.g. 'win32_fspathncmp()') now read from 'repo_ignore_case(the_repository)'. While this introduces dependency on 'repository.h' into the 'compat/', it avoids massive refactoring of the signatures across the codebase. Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Ayush Chandekar <ayu.chandekar@gmail.com> Mentored-by: Olamide Caleb Bello <belkid98@gmail.com> Signed-off-by: Tian Yuchen <cat@malon.dev> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-06-16Merge branch 'js/win-kill-child-more-gently'Junio C Hamano1-0/+165
Advanced emulation of kill() used on Windows in GfW has been upstreamed to improve the symptoms like left-behind .lock files and that fails to let the child clean-up itself when it gets killed. * js/win-kill-child-more-gently: mingw: really handle SIGINT mingw: kill child processes in a gentler way
2026-06-05mingw: kill child processes in a gentler wayJohannes Schindelin1-0/+165
The TerminateProcess() function does not actually leave the child processes any chance to perform any cleanup operations. This is bad insofar as Git itself expects its signal handlers to run. A symptom is e.g. a left-behind .lock file that would not be left behind if the same operation was run, say, on Linux. To remedy this situation, we use an obscure trick: we inject a thread into the process that needs to be killed and to let that thread run the ExitProcess() function with the desired exit status. Thanks J Wyman for describing this trick. The advantage is that the ExitProcess() function lets the atexit handlers run. While this is still different from what Git expects (i.e. running a signal handler), in practice Git sets up signal handlers and atexit handlers that call the same code to clean up after itself. In case that the gentle method to terminate the process failed, we still fall back to calling TerminateProcess(), but in that case we now also make sure that processes spawned by the spawned process are terminated; TerminateProcess() does not give the spawned process a chance to do so itself. Please note that this change only affects how Git for Windows tries to terminate processes spawned by Git's own executables. Third-party software that *calls* Git and wants to terminate it *still* need to make sure to imitate this gentle method, otherwise this patch will not have any effect. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-05-31Merge branch 'pt/fsmonitor-linux'Junio C Hamano2-0/+28
The fsmonitor daemon has been implemented for Linux. * pt/fsmonitor-linux: fsmonitor: convert shown khash to strset in do_handle_client fsmonitor: add tests for Linux fsmonitor: add timeout to daemon stop command fsmonitor: close inherited file descriptors and detach in daemon run-command: add close_fd_above_stderr option fsmonitor: implement filesystem change listener for Linux fsmonitor: rename fsm-settings-darwin.c to fsm-settings-unix.c fsmonitor: rename fsm-ipc-darwin.c to fsm-ipc-unix.c fsmonitor: use pthread_cond_timedwait for cookie wait compat/win32: add pthread_cond_timedwait fsmonitor: fix hashmap memory leak in fsmonitor_run_daemon fsmonitor: fix khash memory leak in do_handle_client t9210, t9211: disable GIT_TEST_SPLIT_INDEX for scalar clone tests
2026-04-15compat/win32: add pthread_cond_timedwaitPaul Tarjan2-0/+28
Add a pthread_cond_timedwait() implementation to the Windows pthread compatibility layer using SleepConditionVariableCS() with a millisecond timeout computed from the absolute deadline. Signed-off-by: Paul Tarjan <github@paulisageek.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-04-06unify and bump _WIN32_WINNT definition to Windows 8.1Matthias Aßhauer1-0/+2
Git for Windows doesn't support anything prior to Windows 8.1 since 2.47.0 and Git followed along with commits like ce6ccba (mingw: drop Windows 7-specific work-around, 2025-08-04). There is no need to pretend to the compiler that we still support Windows Vista, just to lock us out of easy access to newer APIs. There is also no need to have conflicting and unused definitions claiming we support some versions of Windows XP or even Windows NT 4.0. Bump all definitions of _WIN32_WINNT to a realistic value of Windows 8.1. This will also simplify code for a followup commit that will improve cpu core detection on multi-socket systems. Signed-off-by: Matthias Aßhauer <mha1993@live.de> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-02-25Merge branch 'mc/tr2-process-ancestry-cleanup'Junio C Hamano1-25/+33
Add process ancestry data to trace2 on macOS to match what we already do on Linux and Windows. Also adjust the way Windows implementation reports this information to match the other two. * mc/tr2-process-ancestry-cleanup: t0213: add trace2 cmd_ancestry tests test-tool: extend trace2 helper with 400ancestry trace2: emit cmd_ancestry data for Windows trace2: refactor Windows process ancestry trace2 event build: include procinfo.c impl for macOS trace2: add macOS process ancestry tracing
2026-02-13trace2: emit cmd_ancestry data for WindowsMatthew John Cheetham1-0/+8
Since 2f732bf15e (tr2: log parent process name, 2021-07-21) it is now now possible to emit a specific process ancestry event in TRACE2. We should emit the Windows process ancestry data with the correct event type. To not break existing consumers of the data_json "windows/ancestry" event, we continue to emit the ancestry data as a JSON event. Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-02-13trace2: refactor Windows process ancestry trace2 eventMatthew John Cheetham1-25/+25
In 353d3d77f4 (trace2: collect Windows-specific process information, 2019-02-22) we added process ancestry information for Windows to TRACE2 via a data_json event. It was only later in 2f732bf15e (tr2: log parent process name, 2021-07-21) that the specific cmd_ancestry event was added to TRACE2. In a future commit we will emit the ancestry information with the newer cmd_ancestry TRACE2 event. Right now, we rework this implementation of trace2_collect_process_info to separate the calculation of ancestors from building and emiting the JSON array via a data_json event. Signed-off-by: Matthew John Cheetham <mjcheetham@outlook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-01-09mingw: teach dirent about symlinksKarsten Blees1-1/+4
Move the `S_IFLNK` detection to `file_attr_to_st_mode()`. Implement `DT_LNK` detection in dirent.c's `readdir()` function. Signed-off-by: Karsten Blees <karsten.blees@gmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-12-16Merge branch 'gf/win32-pthread-cond-init'Junio C Hamano1-1/+1
Emulation code clean-up. * gf/win32-pthread-cond-init: win32: pthread_cond_init should return a value
2025-11-20win32: pthread_cond_init should return a valueGreg Funni1-1/+1
This value is not checked, but it must return to match POSIX Signed-off-by: Greg Funni <gfunni234@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-11-20win32: return error if SleepConditionVariableCS failsGreg Funni2-1/+9
If it fails, return an error. Signed-off-by: Greg Funni <gfunni234@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-12-06compat/win32: fix -Wsign-compare warning in "wWinMain()"Patrick Steinhardt1-8/+9
GCC generates a warning in "headless.c" because we compare `slash` with `size`, where the former is an `int` and the latter is a `size_t`. Fix the warning by storing `slash` as a `size_t`, as well. This commit is being singled out because the file does not include the "git-compat-util.h" header, and consequently, we cannot easily mark it with the `DISABLE_SIGN_COMPARE_WARNING` macro. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-09-23Merge branch 'ps/environ-wo-the-repository'Junio C Hamano1-0/+2
Code clean-up. * ps/environ-wo-the-repository: (21 commits) environment: stop storing "core.notesRef" globally environment: stop storing "core.warnAmbiguousRefs" globally environment: stop storing "core.preferSymlinkRefs" globally environment: stop storing "core.logAllRefUpdates" globally refs: stop modifying global `log_all_ref_updates` variable branch: stop modifying `log_all_ref_updates` variable repo-settings: track defaults close to `struct repo_settings` repo-settings: split out declarations into a standalone header environment: guard state depending on a repository environment: reorder header to split out `the_repository`-free section environment: move `set_git_dir()` and related into setup layer environment: make `get_git_namespace()` self-contained environment: move object database functions into object layer config: make dependency on repo in `read_early_config()` explicit config: document `read_early_config()` and `read_very_early_config()` environment: make `get_git_work_tree()` accept a repository environment: make `get_graft_file()` accept a repository environment: make `get_index_file()` accept a repository environment: make `get_object_directory()` accept a repository environment: make `get_git_common_dir()` accept a repository ...
2024-09-12environment: guard state depending on a repositoryPatrick Steinhardt1-0/+2
In "environment.h" we have quite a lot of functions and variables that either explicitly or implicitly depend on `the_repository`. The implicit set of stateful declarations includes for example variables which get populated when parsing a repository's Git configuration. This set of variables is broken by design, as their state often depends on the last repository config that has been parsed. So they may or may not represent the state of `the_repository`. Fixing that is quite a big undertaking, and later patches in this series will demonstrate a solution for a first small set of those variables. So for now, let's guard these with `USE_THE_REPOSITORY_VARIABLE` so that callers are aware of the implicit dependency. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-08-28compat: mark unused parameters in win32/mingw functionsJeff King3-4/+4
The compat/ directory contains many stub functions, wrappers, and so on that have to conform to a specific interface, but don't necessarily need to use all of their parameters. Let's mark them to avoid complaints from -Wunused-parameter. This was done mostly via guess-and-check with the Windows build in GitHub CI. I also confirmed that the win+VS build is similarly happy. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-08-28compat: disable -Wunused-parameter in win32/headless.cJeff King1-0/+2
As with the files touched in the previous commit, win32/headless.c does not include git-compat-util.h, so it doesn't have our UNUSED macro. Unlike those ones, this is not third-party code, so it would not be a big deal to modify it. However, I'm not sure if including git-compat-util.h would create other headaches (and I don't even have a machine to test this on; I'm relying on Windows CI to compile it at all). Given how trivial the file is, and that the unused parameters are not interesting (they are just boilerplate for the wWinMain() function), we can just use the same trick as the previous commit and disable the warnings via pragma. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-07-13win32: override `fspathcmp()` with a directory separator-aware versionJohannes Schindelin2-0/+41
On Windows, the backslash is the directory separator, even if the forward slash can be used, too, at least since Windows NT. This means that the paths `a/b` and `a\b` are equivalent, and `fspathcmp()` needs to be made aware of that fact. Note that we have to override both `fspathcmp()` and `fspathncmp()`, and the former cannot be a mere pre-processor constant that transforms calls to `fspathcmp(a, b)` into `fspathncmp(a, b, (size_t)-1)` because the function `report_collided_checkout()` in `unpack-trees.c` wants to assign `list.cmp = fspathcmp`. Also note that `fspatheq()` does _not_ need to be overridden because it calls `fspathcmp()` internally. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-06-14global: introduce `USE_THE_REPOSITORY_VARIABLE` macroPatrick Steinhardt1-0/+2
Use of the `the_repository` variable is deprecated nowadays, and we slowly but steadily convert the codebase to not use it anymore. Instead, callers should be passing down the repository to work on via parameters. It is hard though to prove that a given code unit does not use this variable anymore. The most trivial case, merely demonstrating that there is no direct use of `the_repository`, is already a bit of a pain during code reviews as the reviewer needs to manually verify claims made by the patch author. The bigger problem though is that we have many interfaces that implicitly rely on `the_repository`. Introduce a new `USE_THE_REPOSITORY_VARIABLE` macro that allows code units to opt into usage of `the_repository`. The intent of this macro is to demonstrate that a certain code unit does not use this variable anymore, and to keep it from new dependencies on it in future changes, be it explicit or implicit For now, the macro only guards `the_repository` itself as well as `the_hash_algo`. There are many more known interfaces where we have an implicit dependency on `the_repository`, but those are not guarded at the current point in time. Over time though, we should start to add guards as required (or even better, just remove them). Define the macro as required in our code units. As expected, most of our code still relies on the global variable. Nearly all of our builtins rely on the variable as there is no way yet to pass `the_repository` to their entry point. For now, declare the macro in "biultin.h" to keep the required changes at least a little bit more contained. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-08-15Merge branch 'ds/maintenance-on-windows-fix'Junio C Hamano1-0/+115
Windows updates. * ds/maintenance-on-windows-fix: git maintenance: avoid console window in scheduled tasks on Windows win32: add a helper to run `git.exe` without a foreground window
2023-08-09win32: add a helper to run `git.exe` without a foreground windowJohannes Schindelin1-0/+115
On Windows, there are two kinds of executables, console ones and non-console ones. Git's executables are all console ones. When launching the former e.g. in a scheduled task, a CMD window pops up. This is not what we want for the tasks installed via the `git maintenance` command. To work around this, let's introduce `headless-git.exe`, which is a non-console program that does _not_ pop up any window. All it does is to re-launch `git.exe`, suppressing that console window, passing through all command-line arguments as-are. Helped-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Helped-by: Yuyi Wang <Strawberry_Str@hotmail.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-07-25Merge branch 'mh/mingw-case-sensitive-build'Junio C Hamano1-2/+2
Names of MinGW header files are spelled in mixed case in some source files, but the build host can be using case sensitive filesystem with header files with their name spelled in all lowercase. * mh/mingw-case-sensitive-build: mingw: use lowercase includes for some Windows headers
2023-06-21cache.h: remove this no-longer-used headerElijah Newren1-1/+1
Since this header showed up in some places besides just #include statements, update/clean-up/remove those other places as well. Note that compat/fsmonitor/fsm-path-utils-darwin.c previously got away with violating the rule that all files must start with an include of git-compat-util.h (or a short-list of alternate headers that happen to include it first). This change exposed the violation and caused it to stop building correctly; fix it by having it include git-compat-util.h first, as per policy. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-06-12mingw: use lowercase includes for some Windows headersMike Hommey1-2/+2
When cross-compiling with the mingw toolchain on a system with a case sensitive filesystem, the mixed case (which is technically correct as per the contents of MS Visual C++) doesn't work (the corresponding mingw headers are all lowercase for some reason). Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-24hash-ll.h: split out of hash.h to remove dependency on repository.hElijah Newren1-0/+1
hash.h depends upon and includes repository.h, due to the definition and use of the_hash_algo (defined as the_repository->hash_algo). However, most headers trying to include hash.h are only interested in the layout of the structs like object_id. Move the parts of hash.h that do not depend upon repository.h into a new file hash-ll.h (the "low level" parts of hash.h), and adjust other files to use this new header where the convenience inline functions aren't needed. This allows hash.h and object.h to be fairly small, minimal headers. It also exposes a lot of hidden dependencies on both path.h (which was brought in by repository.h) and repository.h (which was previously implicitly brought in by object.h), so also adjust other files to be more explicit about what they depend upon. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-04-11treewide: be explicit about dependence on trace.h & trace2.hElijah Newren1-0/+1
Dozens of files made use of trace and trace2 functions, without explicitly including trace.h or trace2.h. This made it more difficult to find which files could remove a dependence on cache.h. Make C files explicitly include trace.h or trace2.h if they are using them. Signed-off-by: Elijah Newren <newren@gmail.com> Acked-by: Calvin Wan <calvinwan@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-23Merge branch 'sk/win32-close-handle-upon-pthread-join'Junio C Hamano1-11/+14
Pthread emulation on Win32 leaked thread handle when a thread is joined. * sk/win32-close-handle-upon-pthread-join: win32: close handles of threads that have been joined win32: prepare pthread.c for change by formatting
2023-01-04win32: close handles of threads that have been joinedSeija Kijin1-0/+3
After the thread terminates, the handle to the original thread should be closed. This change makes win32_pthread_join POSIX compliant. Signed-off-by: Seija Kijin <doremylover123@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-01-04win32: prepare pthread.c for change by formattingSeija Kijin1-11/+11
File has been formatted to meet coding guidelines. Signed-off-by: Seija Kijin <doremylover123@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-12-25win32: use _endthreadex to terminate threads, not ExitThreadSeija Kijin1-1/+1
Because we use the C runtime and use _beginthreadex to create pthreads, pthread_exit MUST use _endthreadex. Otherwise, according to Microsoft: "Failure to do so results in small memory leaks when the thread calls ExitThread." Simply put, this is not the same as ExitThread. Signed-off-by: Seija Kijin <doremylover123@gmail.com> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-07-19compat/win32: correct for incorrect compiler warningDerrick Stolee1-3/+4
The 'win build' job of our CI build is failing with the following error: compat/win32/syslog.c: In function 'syslog': compat/win32/syslog.c:53:17: error: pointer 'pos' may be used after \ 'realloc' [-Werror=use-after-free] 53 | memmove(pos + 2, pos + 1, strlen(pos)); CC compat/poll/poll.o | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ compat/win32/syslog.c:47:23: note: call to 'realloc' here 47 | str = realloc(str, st_add(++str_len, 1)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ However, between this realloc() and the use we have a line that resets the value of 'pos'. Thus, this error is incorrect. It is likely due to a new version of the compiler on the CI machines. Instead of waiting for a new compiler, create a new variable to avoid this error. Signed-off-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-06-03Merge branch 'ds/bundle-uri'Junio C Hamano1-5/+1
Preliminary code refactoring around transport and bundle code. * ds/bundle-uri: bundle.h: make "fd" version of read_bundle_header() public remote: allow relative_url() to return an absolute url remote: move relative_url() http: make http_get_file() external fetch-pack: move --keep=* option filling to a function fetch-pack: add a deref_without_lazy_fetch_extended() dir API: add a generalized path_match_flags() function connect.c: refactor sending of agent & object-format
2022-05-31Merge branch 'js/ci-gcc-12-fixes'Junio C Hamano1-0/+2
Fixes real problems noticed by gcc 12 and works around false positives. * js/ci-gcc-12-fixes: dir.c: avoid "exceeds maximum object size" error with GCC v12.x nedmalloc: avoid new compile error compat/win32/syslog: fix use-after-realloc
2022-05-24compat/win32/syslog: fix use-after-reallocJohannes Schindelin1-0/+2
Git for Windows' SDK recently upgraded to GCC v12.x which points out that the `pos` variable might be used even after the corresponding memory was `realloc()`ed and therefore potentially no longer valid. Since a subset of this SDK is used in Git's CI/PR builds, we need to fix this to continue to be able to benefit from the CI/PR runs. Note: This bug has been with us since 2a6b149c64f6 (mingw: avoid using strbuf in syslog, 2011-10-06), and while it looks tempting to replace the hand-rolled string manipulation with a `strbuf`-based one, that commit's message explains why we cannot do that: The `syslog()` function is called as part of the function in `daemon.c` which is set as the `die()` routine, and since `strbuf_grow()` can call that function if it runs out of memory, this would cause a nasty infinite loop that we do not want to re-introduce. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-05-16dir API: add a generalized path_match_flags() functionÆvar Arnfjörð Bjarmason1-5/+1
Add a path_match_flags() function and have the two sets of starts_with_dot_{,dot_}slash() functions added in 63e95beb085 (submodule: port resolve_relative_url from shell to C, 2016-04-15) and a2b26ffb1a8 (fsck: convert gitmodules url to URL passed to curl, 2020-04-18) be thin wrappers for it. As the latter of those notes the fsck version was copied from the initial builtin/submodule--helper.c version. Since the code added in a2b26ffb1a8 was doing really doing the same as win32_is_dir_sep() added in 1cadad6f658 (git clone <url> C:\cygwin\home\USER\repo' is working (again), 2018-12-15) let's move the latter to git-compat-util.h is a is_xplatform_dir_sep(). We can then call either it or the platform-specific is_dir_sep() from this new function. Let's likewise change code in various other places that was hardcoding checks for "'/' || '\\'" with the new is_xplatform_dir_sep(). As can be seen in those callers some of them still concern themselves with ':' (Mac OS classic?), but let's leave the question of whether that should be consolidated for some other time. As we expect to make wider use of the "native" case in the future, define and use two starts_with_dot_{,dot_}slash_native() convenience wrappers. This makes the diff in builtin/submodule--helper.c much smaller. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-10core.fsyncmethod: add writeout-only modeNeeraj Singh1-0/+28
This commit introduces the `core.fsyncMethod` configuration knob, which can currently be set to `fsync` or `writeout-only`. The new writeout-only mode attempts to tell the operating system to flush its in-memory page cache to the storage hardware without issuing a CACHE_FLUSH command to the storage controller. Writeout-only fsync is significantly faster than a vanilla fsync on common hardware, since data is written to a disk-side cache rather than all the way to a durable medium. Later changes in this patch series will take advantage of this primitive to implement batching of hardware flushes. When git_fsync is called with FSYNC_WRITEOUT_ONLY, it may fail and the caller is expected to do an ordinary fsync as needed. On Apple platforms, the fsync system call does not issue a CACHE_FLUSH directive to the storage controller. This change updates fsync to do fcntl(F_FULLFSYNC) to make fsync actually durable. We maintain parity with existing behavior on Apple platforms by setting the default value of the new core.fsyncMethod option. Signed-off-by: Neeraj Singh <neerajsi@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-09lazyload: use correct calling conventionsMatthias Aßhauer2-5/+5
Christoph Reiter reported on the Git for Windows issue tracker[1], that mingw_strftime() imports strftime() from ucrtbase.dll with the wrong calling convention. It should be __cdecl instead of WINAPI, which we always use in DECLARE_PROC_ADDR(). The MSYS2 project encountered cmake sefaults on x86 Windows caused by the same issue in the cmake source. [2] There are no known git crashes that where caused by this, yet, but we should try to prevent them. We import two other non-WINAPI functions via DECLARE_PROC_ADDR(), too. * NtSetSystemInformation() (NTAPI) * GetUserNameExW() (SEC_ENTRY) NTAPI, SEC_ENTRY and WINAPI are all ususally defined as __stdcall, but there are circumstances where they're defined differently. Teach DECLARE_PROC_ADDR() about calling conventions and be explicit about when we want to use which calling convention. Import winnt.h for the definition of NTAPI and sspi.h for SEC_ENTRY near their respective only users. [1] https://github.com/git-for-windows/git/issues/3560 [2] https://github.com/msys2/MINGW-packages/issues/10152 Reported-By: Christoph Reiter <reiter.christoph@gmail.com> Signed-off-by: Matthias Aßhauer <mha1993@live.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27lazyload.h: use an even more generic function pointer than FARPROCCarlo Marcelo Arenas Belón1-3/+6
gcc will helpfully raise a -Wcast-function-type warning when casting between functions that might have incompatible return types (ex: GetUserNameExW returns bool which is only half the size of the return type from FARPROC which is long long), so create a new type that could be used as a completely generic function pointer and cast through it instead. Additionaly remove the -Wno-incompatible-pointer-types temporary flag added in 27e0c3c (win32: allow building with pedantic mode enabled, 2021-09-03), as it will be no longer needed. Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-27lazyload.h: fix warnings about mismatching function pointer typesJohannes Sixt1-2/+3
Here, GCC warns about every use of the INIT_PROC_ADDR macro, for example: In file included from compat/mingw.c:8: compat/mingw.c: In function 'mingw_strftime': compat/win32/lazyload.h:38:12: warning: assignment to 'size_t (*)(char *, size_t, const char *, const struct tm *)' {aka 'long long unsigned int (*)(char *, long long unsigned int, const char *, const struct tm *)'} from incompatible pointer type 'FARPROC' {aka 'long long int (*)()'} [-Wincompatible-pointer-types] 38 | (function = get_proc_addr(&proc_addr_##function)) | ^ compat/mingw.c:1014:6: note: in expansion of macro 'INIT_PROC_ADDR' 1014 | if (INIT_PROC_ADDR(strftime)) | ^~~~~~~~~~~~~~ (message wrapped for convenience). Insert a cast to keep the compiler happy. A cast is fine in these cases because they are generic function pointer values that have been looked up in a DLL. Helped-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-03win32: allow building with pedantic mode enabledCarlo Marcelo Arenas Belón1-1/+1
In preparation to building with pedantic mode enabled, change a couple of places where the current mingw gcc compiler provided with the SDK reports issues. A full fix for the incompatible use of (void *) to store function pointers has been punted, with the minimal change to instead use a generic function pointer (FARPROC), and therefore the (hopefully) temporary need to disable incompatible pointer warnings. Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-03-27run-command: trigger PATH lookup properly on CygwinAndras Kucsma1-0/+11
On Cygwin, the codepath for POSIX-like systems is taken in run-command.c::start_command(). The prepare_cmd() helper function is called to decide if the command needs to be looked up in the PATH. The logic there is to do the PATH-lookup if and only if it does not have any slash '/' in it. If this test passes we end up attempting to run the command by appending the string after each colon-separated component of PATH. The Cygwin environment supports both Windows and POSIX style paths, so both forwardslahes '/' and back slashes '\' can be used as directory separators for any external program the user supplies. Examples for path strings which are being incorrectly searched for in the PATH instead of being executed as is: - "C:\Program Files\some-program.exe" - "a\b\c.exe" To handle these, the PATH lookup detection logic in prepare_cmd() is taught to know about this Cygwin quirk, by introducing has_dir_sep(path) helper function to abstract away the difference between true POSIX and Cygwin systems. Signed-off-by: Andras Kucsma <r0maikx02b@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-06Sync with 2.23.1Johannes Schindelin2-2/+27
* maint-2.23: (44 commits) Git 2.23.1 Git 2.22.2 Git 2.21.1 mingw: sh arguments need quoting in more circumstances mingw: fix quoting of empty arguments for `sh` mingw: use MSYS2 quoting even when spawning shell scripts mingw: detect when MSYS2's sh is to be spawned more robustly t7415: drop v2.20.x-specific work-around Git 2.20.2 t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x Git 2.19.3 Git 2.18.2 Git 2.17.3 Git 2.16.6 test-drop-caches: use `has_dos_drive_prefix()` Git 2.15.4 Git 2.14.6 mingw: handle `subst`-ed "DOS drives" mingw: refuse to access paths with trailing spaces or periods mingw: refuse to access paths with illegal characters ...
2019-12-06Sync with 2.22.2Johannes Schindelin2-2/+27
* maint-2.22: (43 commits) Git 2.22.2 Git 2.21.1 mingw: sh arguments need quoting in more circumstances mingw: fix quoting of empty arguments for `sh` mingw: use MSYS2 quoting even when spawning shell scripts mingw: detect when MSYS2's sh is to be spawned more robustly t7415: drop v2.20.x-specific work-around Git 2.20.2 t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x Git 2.19.3 Git 2.18.2 Git 2.17.3 Git 2.16.6 test-drop-caches: use `has_dos_drive_prefix()` Git 2.15.4 Git 2.14.6 mingw: handle `subst`-ed "DOS drives" mingw: refuse to access paths with trailing spaces or periods mingw: refuse to access paths with illegal characters unpack-trees: let merged_entry() pass through do_add_entry()'s errors ...
2019-12-06Sync with 2.21.1Johannes Schindelin2-2/+27
* maint-2.21: (42 commits) Git 2.21.1 mingw: sh arguments need quoting in more circumstances mingw: fix quoting of empty arguments for `sh` mingw: use MSYS2 quoting even when spawning shell scripts mingw: detect when MSYS2's sh is to be spawned more robustly t7415: drop v2.20.x-specific work-around Git 2.20.2 t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x Git 2.19.3 Git 2.18.2 Git 2.17.3 Git 2.16.6 test-drop-caches: use `has_dos_drive_prefix()` Git 2.15.4 Git 2.14.6 mingw: handle `subst`-ed "DOS drives" mingw: refuse to access paths with trailing spaces or periods mingw: refuse to access paths with illegal characters unpack-trees: let merged_entry() pass through do_add_entry()'s errors quote-stress-test: offer to test quoting arguments for MSYS2 sh ...
2019-12-06Sync with 2.20.2Johannes Schindelin2-2/+27
* maint-2.20: (36 commits) Git 2.20.2 t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x Git 2.19.3 Git 2.18.2 Git 2.17.3 Git 2.16.6 test-drop-caches: use `has_dos_drive_prefix()` Git 2.15.4 Git 2.14.6 mingw: handle `subst`-ed "DOS drives" mingw: refuse to access paths with trailing spaces or periods mingw: refuse to access paths with illegal characters unpack-trees: let merged_entry() pass through do_add_entry()'s errors quote-stress-test: offer to test quoting arguments for MSYS2 sh t6130/t9350: prepare for stringent Win32 path validation quote-stress-test: allow skipping some trials quote-stress-test: accept arguments to test via the command-line tests: add a helper to stress test argument quoting mingw: fix quoting of arguments Disallow dubiously-nested submodule git directories ...
2019-10-18Merge branch 'dl/compat-cleanup'Junio C Hamano1-1/+1
Code formatting micronit fix. * dl/compat-cleanup: pthread.h: manually align parameter lists
2019-10-15Merge branch 'js/azure-pipelines-msvc'Junio C Hamano1-0/+5
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()`