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The zsh completion script (in 'contrib/') has been updated to
correctly locate the Git command after global options like '-C' by
properly skipping them, similar to how the bash completion does.
* ll/zsh-complete-git-potty-options:
completion: zsh: support completion after "git -C <path>"
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The command line completion (in contrib/) has been taught to handle
the experimental 'git history' command.
* vm/complete-history:
completion: complete 'git history split' pathspecs
completion: complete 'git history --update-refs' values
completion: complete 'git history --empty' values
completion: add 'git history' subcommands
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'git -C <dir> checkout fi<TAB>' did not complete, which has been
corrected.
* jc/complete-checkout:
completion: 'git checkout' completes untracked paths as a last resort
completion: complete tracked paths for "git checkout"
completion: no-op refactoring of checkout completion
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'git -C <dir> diff fi<TAB>' did not complete 'file', which has been
corrected.
* jc/complete-diff-tracked-paths:
completion: 'git diff' completes untracked paths as a last resort
completion: complete tracked paths for 'git diff'
completion: no-op refactoring of diff completion
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The zsh completion wrapper does not handle the global -C option, so
git -C <path> <command> <TAB>
offers nothing. -C is not part of the _arguments specification, and the
wrapper hard-codes __git_cmd_idx=1, i.e. it assumes that the command is
the first argument, so the bash helpers look at the wrong word. The
latter is not specific to -C; the assumption breaks after any global
option, e.g. "git -p checkout <TAB>" does not complete branch names.
Add -C to the specification, and find the command by skipping over the
global options and, where they take one, their arguments, as __git_main
in git-completion.bash does. The index is one less than zsh's, as the
helpers count the words from zero. Collect the paths given to -C into
__git_C_args, or else the helpers run git in the current directory and
fail to resolve the aliases and refs of the repository the command runs
in.
The argument of a -C is still completed without regard for the -C
options before it, i.e. "git -C dir -C <TAB>" offers the directories in
".", not the ones in "dir".
Signed-off-by: Lutz Lengemann <lutz@lengemann.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A compatibility wrapper for writev(3p) has been reintroduced,
including fixes for CMake build and 'MAX_IO_SIZE' limits on NonStop.
Calls to write(3p) in send_sideband() and cat_blob() have been
refactored to use writev(3p) wrappers to reduce syscall overhead.
* ps/writev:
fast-import: use writev(3p) to send cat-blob responses
sideband: use writev(3p) to send pktlines
wrapper: properly handle MAX_IO_SIZE in writev(3p)
wrapper: introduce writev(3p) wrappers
compat/posix: introduce writev(3p) wrapper
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Arguments following the required revision of "git history split" are
pathspecs. Complete them from tracked paths, including after an explicit
"--".
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "--update-refs" option accepts either "branches" or "head".
Complete these values for the documented
--update-refs=<value>
form.
While parse-options also accepts the split
--update-refs <value>
form, it is not documented. Omit it from completion as a trade-off for
code simplicity.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "--empty" option accepts "drop", "keep", or "abort" for the "drop"
and "fixup" subcommands. Complete these values for the documented
--empty=<value>
form.
While parse-options also accepts the split
--empty <value>
form, it is not documented. Omit it from completion as a trade-off for
code simplicity.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Use the parse-options completion helpers for the
git history
subcommands and their options. All current history subcommands take a
revision as their first positional argument, so complete that argument
as a revision.
Once the revision is present, leave any further positional arguments to
subcommand-specific completion. This allows a subcommand to complete
another kind of argument, such as the pathspec accepted by
git history split
or another revision if a future subcommand accepts one.
Signed-off-by: Vincent Mailhol <mailhol@kernel.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We taught 'git checkout' to first try to complete revisions (unless
'--' is present on the command line) and, failing that, to complete
tracked paths. If this yields nothing, it lets the Bash default,
which offers paths in $PWD, kick in.
Teach it to complete untracked paths before giving up and letting
the Bash default kick in. With this change,
$ git -C another-directory checkout un<TAB>
finds the 'untracked' file in another-directory and offers it as a
completion candidate.
Note that this is of somewhat dubious value, as an untracked path by
definition does not exist in the index, so checking it out from the
index would not work well. Even when used to check out the path
from a different branch, it is still of dubious value because it is
unlikely that a path tracked in another branch is lying untracked in
the working tree, as switching from a branch with the path to a
branch without it will normally remove the file in the working tree.
A better behavior probably is to detect the tree-ish argument on
the command line and offer paths with the given prefix as candidates,
but there is no __git_complete_from_tree() helper readily usable,
so mark this as #leftoverbits to wait for another day.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When completing arguments for "git checkout", _git_checkout()
delegates to __git_complete_refs(), which only completes revision
references. This is good, as mixing revisions and paths in a single
list from which the user can choose is confusing. However, if no
reference matches, or if "--" is given, _git_checkout() leaves
COMPREPLY empty. Bash then falls back to the default filename
completion in $PWD.
This fails when "git -C <path>" is used, as $PWD is not the target
repository.
Update _git_checkout() to use __git_complete_index_file() when "--"
is present, or when revision reference completion yields no matching
candidates, so that tracked paths are offered as candidates.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The 'git checkout' completion function punts very early when it sees
'--' on the command line, as it indicates that options or revisions
can no longer appear. By returning early, it allows the default
Bash action (which completes files in '$PWD') to kick in.
In preparation for changing what happens in the next step when
option or revision completion yields no matching candidates, or when
'--' is present, reorganize the control flow to avoid this early
return, and add explicit returns to the option completion branches.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We taught 'git diff' to first try to complete revisions (unless '--'
is present on the command line) and, failing that, to complete
tracked paths. If this yields nothing, it lets the Bash default,
which offers paths in $PWD, kick in.
Teach it to complete untracked paths before giving up and letting
the Bash default kick in. With this change,
$ git -C another-directory diff un<TAB>
finds the 'untracked' file in another-directory and offers it as a
completion candidate.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When completing arguments for 'git diff', _git_diff() delegates to
__git_complete_revlist_file(), which only completes revision
references. This is good [*], as mixing both revisions and paths in a
single list for the user to pick from is simply too confusing.
If no reference matches, or if '--' is given, however, _git_diff()
leaves COMPREPLY empty. Bash then falls back to default filename
completion in $PWD. This fails when 'git -C <path>' is used because
$PWD is not the target repository.
Update _git_diff() to use __git_complete_index_file() when '--' is
present, or when revision reference completion yields no matching
candidates, so that tracked paths are offered as candidates.
This changes behavior even in the case where '-C <there>' is not
used. The new behavior omits untracked paths from suggestions when
no revs match the prefix but matching tracked paths exist, which is
more useful in the context of 'git diff'.
When run outside the working tree of a repository, or when nothing
matches from revisions or tracked paths, Bash still falls back to
default filename completion in $PWD, so such a use case would be
just like completing paths for any 'diff' command, rather than for
'git diff'.
[Footnote]
* In https://lore.kernel.org/git/al%2Fw2qgBfhe9qMg6@szeder.dev/
SZEDER made the same argument for "git send-email 0<TAB>".
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "git diff" completion function punts very early when it sees
"--" on the command line, since it is a sign that options or
revisions can appear and the current completion does not need to do
anything "git diff" specific. By returning, it lets Bash default
action that completes the names of the files in $PWD to kick in.
In preparation for the next step to change what happens when we
"punt", arrange the code flow to avoid this early return. The
behaviour at this step is unchanged, but the control flow just
falls straight to the end.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In a subsequent commit we're going to add the first caller to
writev(3p). Introduce a compatibility wrapper for this syscall that we
can use on systems that don't have this syscall.
The syscall exists on modern Unixes like Linux and macOS, and seemingly
even for NonStop according to [1]. It doesn't seem to exist on Windows
though.
[1]: http://nonstoptools.com/manuals/OSS-SystemCalls.pdf
[2]: https://www.gnu.org/software/gnulib/manual/html_node/writev.html
Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The build system has been updated to support building universal macOS
binaries when 'Rust' is enabled, by compiling separate static archives
for each target triple listed in 'RUST_TARGETS' and combining them
using the macOS 'lipo' tool. The 'git-credential-osxkeychain' helper
has been updated to link against '$(RUST_LIB)' when 'Rust' is enabled.
* sn/osxkeychain-rust-universal:
contrib: wire up osxkeychain in contrib/Makefile on macOS
Makefile: support universal macOS builds via RUST_TARGETS
Makefile: add $(RUST_LIB) prerequisite to osxkeychain
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Option parsing with 'git rev-parse --parseopt' and in most 'git'
subcommands has been updated to exit with 0 (instead of 129) when the
help option ('-h' or '--help') is requested directly by the user,
aligning with standard Unix convention.
* bc/parse-options-exit-0-on-help:
parse-options: exit 0 on -h
rev-parse: have --parseopt callers exit 0 on --help
parse-options: add a separate case for help output on error
t1517: skip svn tests if svn is not installed
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When `git credential approve` hands the wincred helper a password
together with an `oauth_refresh_token`, the OAuth branch of
`store_credential()` writes one WCHAR past the allocation while
formatting both fields into a single `CredentialBlob`. On Windows
this trips heap verification and tears the helper down with status
`0xC0000374`; `approve` masks the failure, so the credential the
user meant to save never reaches `CredWriteW()` and the next
session prompts for it again.
The bug has the same shape as the one fixed in the previous commit:
the allocation leaves no room for the terminating NUL, and the
`sizeOfBuffer` argument to `_snwprintf_s()` is a byte count where
the API expects a WCHAR count, which lets the safe-CRT runtime
write the terminator out of bounds.
Apply the same remedy d22a488482 (wincred: avoid memory corruption,
2025-11-17) applied in `get_credential()`: allocate `(wlen + 1) *
sizeof(WCHAR)` bytes and pass `wlen + 1` as the destination
capacity in WCHARs.
This closes the second of the two heap writes tracked under
GHSA-rxqw-wxqg-g7hw.
Assisted-by: Opus 4.7
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The earlier d22a488482 (wincred: avoid memory corruption, 2025-11-17)
repaired only get_credential(); match_cred_password() has the same
defect and is reached on `git credential reject`. When Git asks the
helper to erase a stored credential whose password was supplied by
the caller, the helper copies the candidate's password into a freshly
allocated buffer for comparison. That copy overruns the allocation
by one WCHAR of NUL, which on uninstrumented Windows manifests as
process termination with status 0xC0000374. Because the helper can
die before reaching CredDeleteW(), `git credential reject` masks the
failure and the rejected credential remains stored.
CredentialBlobSize is documented as a byte count, so for an N-WCHAR
blob it equals N * sizeof(WCHAR). The pre-fix code allocated that
many bytes and asked wcsncpy_s to copy N wide characters, but
wcsncpy_s always appends a terminating NUL WCHAR, writing one WCHAR
past the allocation. The destination-capacity argument was also
passed in bytes rather than in WCHAR elements as the API requires,
so the safe-CRT runtime never rejected the copy.
See GHSA-rxqw-wxqg-g7hw.
Assisted-by: Opus 4.7
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When running "make test" with TEST_CONTRIB_TOO=yes (which is default in
macOS CI workflows), $(MAKE) -C contrib/ test is invoked. However,
contrib/Makefile only invoked tests for diff-highlight and subtree,
meaning git-credential-osxkeychain was never built or verified during
standard CI test runs.
Add a "test" target to contrib/credential/osxkeychain/Makefile that
depends on building git-credential-osxkeychain. Additionally, wire up
credential/osxkeychain in contrib/Makefile under "all", "test", and
"clean" whenever running on macOS (Darwin).
This ensures that running "make test" or "make all" in contrib on macOS
automatically builds and links git-credential-osxkeychain, preventing
future build or symbol linking regressions from slipping through CI.
Signed-off-by: Shardul Natu <snatu@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The standard philosophy for Unix software when a help option (such as
--help) is specified is that the software should exit 0, printing the
help output to standard output, since the standard output is for
user-requested output and the program performed the requested task
successfully. If the user specifies an incorrect option, then the help
output should be printed to standard error (since the user has made a
mistake) and it should exit unsuccessfully.
Most of our commands currently exit 129 on receiving the -h option to
print the short help, which does not line up with the standard
philosophy above. Let's change that to exit 0 instead.
This requires changes to a variety of tests which previously wanted the
129 exit code, so update them. Note that because git diff does its own
option parsing, it still exits with 129, so update some of the tests to
expect either exit status.
Some commands also now pass with -h but not --help-all, so handle those
cases differently for those commands.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Various typos, grammatical errors, and duplicated words in both
documentation and code comments have been corrected.
* wy/docs-typofixes:
docs: fix typos and grammar
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"git rev-list" (and "git log" family of commands) learned a new "--max-count-oldest"
that picks oldest N commits in the range instead of the usual newest.
* mf/revision-max-count-oldest:
bash-completions: add --max-count-oldest
revision.c: implement --max-count-oldest
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Add missing completion for log --max-count-oldest
Signed-off-by: Mirko Faina <mroik@delayed.space>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The 'git-jump' command (in contrib/) has been taught to automatically
pick a mode (merge, diff, or ws) when invoked without arguments.
* gh/jump-auto-mode:
git-jump: pick a mode automatically when invoked without arguments
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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
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Fix several spelling mistakes, subject-verb agreement issues, and
duplicated words.
Signed-off-by: Weijie Yuan <wy@wyuan.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When `git jump` is invoked with no positional arguments (and no
arguments after `--stdout`) it currently prints usage and exits with
status 1.
But there are two situations where we can usefully infer the most
valuable and likely mode that a user would want to use, and select it
automatically:
1. When there are unmerged paths in the index, the user likely
wants `git jump merge`.
2. When the working tree has unstaged changes, the user likely
wants `git jump diff`.
In this commit we teach `git jump` a new "auto" mode which detects these
cases and dispatches to the corresponding mode automatically. The user
can either explicitly spell out `git jump auto`, or just leave it at
`git jump` (because "auto" is the default).
If none of the interesting cases listed above applies, then auto mode
falls back to the existing usage-and-exit behavior.
Signed-off-by: Greg Hurrell <greg.hurrell@datadoghq.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With the previous commit removing every opt-in, the build-system
plumbing for nedmalloc has nothing left to switch on. Remove it so
that the upcoming deletion of the compat/nedmalloc/ tree is a pure
file removal.
Assisted-by: Opus 4.7
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The vendored nedmalloc allocator under compat/nedmalloc/ has been
unmaintained upstream for a very long time: the original repository at
https://github.com/ned14/nedmalloc received its last commit on July 5,
2014, and was archived (made read-only) by its owner on March 15, 2019.
Our copy has been carried forward unchanged ever since.
The Git for Windows commit that introduced mimalloc as a replacement
on Windows ("mingw: use mimalloc", 2019-06-24, present in the Git for
Windows branch thicket but not upstream) already observed at that time
that nedmalloc had ceased to see any updates for several years.
This came to a head when the Git for Windows SDK upgraded to GCC 16:
the `add_segment()` function in `compat/nedmalloc/malloc.c.h` declares
`int nfences = 0` and only references it inside an `assert()`, which
GCC 16 now flags as `-Wunused-but-set-variable`. Combined with the
`-Werror` enabled by `DEVELOPER=1`, this turns into a hard build
failure:
compat/nedmalloc/malloc.c.h: In function 'add_segment':
compat/nedmalloc/malloc.c.h:3897:7: error: variable 'nfences' set but not used [-Werror=unused-but-set-variable=]
3897 | int nfences = 0;
| ^~~~~~~
cc1.exe: all warnings being treated as errors
The same source built without complaint under GCC 15.2.0; the
regression was bisected to the SDK package update at
https://github.com/git-for-windows/git-sdk-64/commit/188d93dd455
(`mingw-w64-x86_64-gcc 15.2.0-14 -> 16.1.0-1`), with the failing CI
run captured at
https://github.com/git-for-windows/git-sdk-64/actions/runs/25244795074.
Rather than patch the unmaintained vendored sources to silence the
warning, stop opting into nedmalloc altogether on Windows. The
platform allocator is what every non-MINGW build already uses, and a
fresh build of git.git's master against a minimal Git for Windows SDK
upgraded to GCC 16 completes successfully.
The compat/nedmalloc/ subtree itself is removed by subsequent commits
in this series.
Assisted-by: Opus 4.7
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Implement the built-in fsmonitor daemon for Linux using the inotify
API, bringing it to feature parity with the existing Windows and macOS
implementations.
The implementation uses inotify rather than fanotify because fanotify
requires either CAP_SYS_ADMIN or CAP_PERFMON capabilities, making it
unsuitable for an unprivileged user-space daemon. While inotify has
the limitation of requiring a separate watch on every directory (unlike
macOS's FSEvents, which can monitor an entire directory tree with a
single watch), it operates without elevated privileges and provides
the per-file event granularity needed for fsmonitor.
The listener uses inotify_init1(O_NONBLOCK) with a poll loop that
checks for events with a 50-millisecond timeout, keeping the inotify
queue well-drained to minimize the risk of overflows. Bidirectional
hashmaps map between watch descriptors and directory paths for efficient
event resolution. Directory renames are tracked using inotify's cookie
mechanism to correlate IN_MOVED_FROM and IN_MOVED_TO event pairs; a
periodic check detects stale renames where the matching IN_MOVED_TO
never arrived, forcing a resync.
New directory creation triggers recursive watch registration to ensure
all subdirectories are monitored. The IN_MASK_CREATE flag is used
where available to prevent modifying existing watches, with a fallback
for older kernels. When IN_MASK_CREATE is available and
inotify_add_watch returns EEXIST, it means another thread or recursive
scan has already registered the watch, so it is safe to ignore.
Remote filesystem detection uses statfs() to identify network-mounted
filesystems (NFS, CIFS, SMB, FUSE, etc.) via their magic numbers.
Mount point information is read from /proc/mounts and matched against
the statfs f_fsid to get accurate, human-readable filesystem type names
for logging. When the .git directory is on a remote filesystem, the
IPC socket falls back to $HOME or a user-configured directory via the
fsmonitor.socketDir setting.
Based-on-patch-by: Eric DeCosta <edecosta@mathworks.com>
Based-on-patch-by: Marziyeh Esipreh <marziyeh.esipreh@gmail.com>
Signed-off-by: Paul Tarjan <github@paulisageek.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The fsmonitor settings logic in fsm-settings-darwin.c is not
Darwin-specific and will be reused by the upcoming Linux
implementation. Rename it to fsm-settings-unix.c to reflect that it
is shared by all Unix platforms.
Update the build files (meson.build and CMakeLists.txt) to use
FSMONITOR_OS_SETTINGS for fsm-settings, matching the approach already
used for fsm-ipc.
Based-on-patch-by: Eric DeCosta <edecosta@mathworks.com>
Based-on-patch-by: Marziyeh Esipreh <marziyeh.esipreh@gmail.com>
Signed-off-by: Paul Tarjan <github@paulisageek.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The fsmonitor IPC path logic in fsm-ipc-darwin.c is not
Darwin-specific and will be reused by the upcoming Linux
implementation. Rename it to fsm-ipc-unix.c to reflect that it
is shared by all Unix platforms.
Introduce FSMONITOR_OS_SETTINGS (set to "unix" for non-Windows, "win32"
for Windows) as a separate variable from FSMONITOR_DAEMON_BACKEND so
that the build files can distinguish between platform-specific files
(listen, health, path-utils) and shared Unix files (ipc, settings).
Move fsm-ipc to the FSMONITOR_OS_SETTINGS section in the Makefile, and
switch fsm-path-utils to use FSMONITOR_DAEMON_BACKEND since path-utils
is platform-specific (there will be separate darwin and linux versions).
Based-on-patch-by: Eric DeCosta <edecosta@mathworks.com>
Based-on-patch-by: Marziyeh Esipreh <marziyeh.esipreh@gmail.com>
Signed-off-by: Paul Tarjan <github@paulisageek.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This reverts commit 89152af176ea94ea8f3249115b6e00827fbbeb70; let's
not use writev() for now.
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Build instruction for recently added writev() compatibility wrapper
has been also added to cmake.
* js/cmake-needs-writev-compat-too:
cmake: use writev(3p) wrapper as needed
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This is a companion patch of 3b9b2c2a29a (compat/posix: introduce
writev(3p) wrapper, 2026-03-13) where support for using the `writev()`
wrapper was introduced in the `Makefile` and the Meson-based build, but
the CMake build still needs that treatment, too.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Various updates to contrib/diff-highlight, including documentation
updates, test improvements, and color configuration handling.
* jk/diff-highlight-more:
diff-highlight: fetch all config with one process
diff-highlight: allow module callers to pass in color config
diff-highlight: test color config
diff-highlight: use test_decode_color in tests
t: add matching negative attributes to test_decode_color
diff-highlight: check diff-highlight exit status in tests
diff-highlight: drop perl version dependency back to 5.8
diff-highlight: mention build instructions
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Tweak the build infrastructure by moving tools around.
* ps/build-tweaks:
meson: precompile "git-compat-util.h"
meson: compile compatibility sources separately
git-compat-util.h: move warning infra to prepare for PCHs
builds: move build scripts into "tools/"
contrib: move "update-unicode.sh" script into "tools/"
contrib: move "coverage-diff.sh" script into "tools/"
contrib: move "coccinelle/" directory into "tools/"
Introduce new "tools/" directory
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The handling of the incomplete lines at the end by "git
diff-highlight" has been fixed.
* jk/diff-highlight-identical-pairs:
contrib/diff-highlight: do not highlight identical pairs
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When diff-highlight was written, there was no way to fetch multiple
config keys _and_ have them interpreted as colors. So we were stuck
with either invoking git-config once for each config key, or fetching
them all and converting human-readable color names into ANSI codes
ourselves.
I chose the former, but it means that diff-highlight kicks off 6
git-config processes (even if you haven't configured anything, it has to
check each one).
But since Git 2.18.0, we can do:
git config --type=color --get-regexp=^color\.diff-highlight\.
to get all of them in one shot.
Note that any callers which pass in colors directly to the module via
@OLD_HIGHLIGHT and @NEW_HIGHLIGHT (like diff-so-fancy plans to do) are
unaffected; those colors suppress any config lookup we'd do ourselves.
You can see the effect like:
# diff-highlight suppresses git-config's stderr, so dump
# trace through descriptor 3
git show d1f33c753d | GIT_TRACE=3 diff-highlight 3>&2 >/dev/null
which drops from 6 lines down to 1.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Users of the module may want to pass in their own color config for a few
obvious reasons:
- they are pulling the config from different variables than
diff-highlight itself uses
- they are loading the config in a more efficient way (say, by parsing
git-config --list) and don't want to incur the six (!) git-config
calls that DiffHighlight.pm runs to check all config
Let's allow users of the module to pass in the color config, and
lazy-load it when needed if they haven't.
Signed-off-by: Scott Baker <scott@perturb.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We added configurable colors long ago in bca45fbc1f (diff-highlight:
allow configurable colors, 2014-11-20), but never actually tested it.
Since we'll be touching the color code in a moment, this is a good time
to beef up the tests.
Note that we cover both the highlight/reset style used by the default
colors, as well as the normal/highlight style added by that commit
(which was previously totally untested).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The diff-highlight tests use raw color bytes when comparing expected and
actual output. Let's use test_decode_color, which is our usual technique
in other tests. It makes reading test output diffs a bit easier, since
you're not relying on your terminal to interpret the result (or worse,
interpreting characters yourself via "cat -A").
This will also make it easier to add tests with new colors/attributes,
without having to pre-define the byte sequences ourselves.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When testing diff-highlight, we pipe the output through a sanitizing
function. This loses the exit status of diff-highlight itself, which
could mean we are missing cases where it crashes or exits unexpectedly.
Use an extra tempfile to avoid the pipe.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The diff-highlight code does not rely on any perl features beyond what
perl 5.8 provides. We bumped it to v5.26 along with the rest of the
project's perl scripts in 702d8c1f3b (Require Perl 5.26.0, 2024-10-23).
There's some value in just having a uniform baseline for the project,
but I think diff-highlight is special here:
- it's in a contrib/ directory that is not frequently touched, so
there is little risk of Git developers getting annoyed that modern
perl features are not available
- it provides a module used by other projects. In particular,
diff-so-fancy relies on DiffHighlight.pm but does not otherwise
require a perl version more modern than 5.8.
Let's drop back to the more conservative requirement.
Signed-off-by: Scott Baker <scott@perturb.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Once upon a time, this was just a script in a directory that could be
run directly. That changed in 0c977dbc81 (diff-highlight: split code
into module, 2017-06-15). Let's update the README to make it more clear
that you need to run make.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We pair lines for highlighting based on their position in the hunk. So
we should never see two identical lines paired, like:
-one
-two
+one
+something else
which would pair -one/+one, because that implies that the diff could
easily be shrunk by turning line "one" into context.
But there is (at least) one exception: removing a newline at the end of
a file will produce a diff like:
-foo
+foo
\No newline at end of file
And we will pair those two lines. As a result, we end up marking the
whole line, including the newline, as the shared prefix. And there's an
empty suffix.
The most obvious bug here is that when we try to print the highlighted
lines, we remove the trailing newline from the suffix, but do not bother
with the prefix (under the assumption that there had to be a difference
_somewhere_ in the line, and thus the prefix would not eat all the way
up to the newline). And so you get an extra line like:
-foo
+foo
\No newline at end of file
This is obviously ugly, but also causes interactive.diffFilter to
(rightly) complain that the input and output do not match their lines
1-to-1.
This could easily be fixed by chomping the prefix, too, but I think the
problem is deeper. For one, I suspect some of the other logic gets
confused by forming an array with zero-indexed element "3" in a
3-element array. But more importantly, we try not to highlight whole
lines, as there's nothing interesting to show there. So let's catch this
early in is_pair_interesting() and bail to our usual passthrough
strategy.
Reported-by: Scott Baker <scott@perturb.org>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We have a bunch of scripts used by our different build systems that are
all located in the top-level directory. Now that we have introduced the
new "tools/" directory though we have a better home for them.
Move the scripts into the "tools/" directory.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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