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The bulk-checkin subsystem provides various functions to manage ODB
transactions. Apart from {begin,end}_odb_transaction(), these functions
are only used by the object-file subsystem to manage aspects of a
transaction implementation specific to the files object source.
Relocate all the transaction code in bulk-checkin to object-file. This
simplifies the exposed transaction interface by reducing it to only
{begin,end}_odb_transaction(). Function and type names are adjusted in
the subsequent commit to better fit the new location.
Signed-off-by: Justin Tobler <jltobler@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Our documentation can be built with either Asciidoc or Asciidoctor as
backend. When Meson is configured to build documentation, then it will
automatically detect which of these tools is available and use them.
It's not obvious to the user though which of these backends is used
unless the user explicitly asks for one backend via `-Ddocs_backend=`.
Improve the status quo by printing the docs backend as part of the
"backends" summary.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Meson does not currently provide a target to compile documentation,
only. Instead, users needs to compile the whole project, which may be
way more than they really intend to do.
Introduce a new "docs" alias to plug this gap. This alias can be invoked
e.g. with `meson compile docs`.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A new command "git last-modified" has been added to show the closest
ancestor commit that touched each path.
* tc/last-modified:
last-modified: use Bloom filters when available
t/perf: add last-modified perf script
last-modified: new subcommand to show when files were last modified
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Similar to git-blame(1), introduce a new subcommand
git-last-modified(1). This command shows the most recent modification to
paths in a tree. It does so by expanding the tree at a given commit,
taking note of the current state of each path, and then walking
backwards through history looking for commits where each path changed
into its final commit ID.
Based-on-patch-by: Jeff King <peff@peff.net>
Improved-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Toon Claes <toon@iotcl.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A new subcommand "git repo" gives users a way to grab various
repository characteristics.
* lo/repo-info:
repo: add the --format flag
repo: add the field layout.shallow
repo: add the field layout.bare
repo: add the field references.format
repo: declare the repo command
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Currently, `git rev-parse` covers a wide range of functionality not
directly related to parsing revisions, as its name suggests. Over time,
many features like parsing datestrings, options, paths, and others
were added to it because there wasn't a more appropriate command
to place them.
Create a new Git command called `repo`. `git repo` will be the main
command for obtaining the information about a repository (such as
metadata and metrics).
Also declare a subcommand for `repo` called `info`. `git repo info`
will bring the functionality of retrieving repository-related
information currently returned by `rev-parse`.
Add the required documentation and build changes to enable usage of
this subcommand.
Helped-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Justin Tobler <jltobler@gmail.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Mentored-by: Karthik Nayak <karthik.188@gmail.com>
Mentored-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Lucas Seiki Oshiro <lucasseikioshiro@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Build fix.
* ms/meson-with-ancient-git-wo-ls-files-dedup:
meson: tolerate errors from git ls-files --deduplicate
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Build fix for macOS.
* cb/meson-avoid-broken-macos-pcre2:
meson: work around broken system PCRE2 dependency in macOS
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When using the Meson build system with versions of Git before 2.31,
that does not yet know the `git ls-files --deduplicate` option, one
can observe the following error:
../meson.build:697:19: ERROR: Command `/usr/bin/git -C /home/martin/code/git ls-files --deduplicate '*.h' ':!contrib' ':!compat/inet_ntop.c' ':!compat/inet_pton.c' ':!compat/nedmalloc' ':!compat/obstack.*' ':!compat/poll' ':!compat/regex' ':!sha1collisiondetection' ':!sha1dc' ':!t/unit-tests/clar' ':!t/t[0-9][0-9][0-9][0-9]*' ':!xdiff'` failed with status 129.
The failing command is used to find all header files in our code
base, which is required for static analysis.
Static analysis is an entirely optional feature that distributors
typically don't care about, and we already know to skip running the
command when we are not in a Git repository. But we do not handle
the above failure gracefully, even though we could.
Fix this by passing `check: false` to `run_command`, which makes it
tolerate failures. Then check `returncode()` manually to decide
whether to inspect the output.
Signed-off-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Meson-based build did not handle libexecdir setting correctly,
which has been corrected.
* rj/meson-libexecdir-fix:
po/meson.build: add missing 'ga' language code
meson: fix installation when -Dlibexexdir is set
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Meson-based build update.
* ps/meson-cleanups:
ci: use Meson's new `--slice` option
meson: update subproject wrappers
meson: fix lookup of shell on MINGW64
meson: clean up unnecessary variables
meson: improve summary of auto-detected features
meson: stop printing 'https' option twice in our summaries
meson: stop discovering native version of Python
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macOS provides a PCRE2 library in base that is not usable and not
configured properly, as it installs a pkgconf module that
points to a non-existent pcre2.h header in /usr/local/include.
Detect that case and if the feature is enabled, try to fallback
to a wrapped subproject through an anonymous dependency, aborting
with an error if that is not possible.
Change the feature to "auto" and print a warning and disable it
if a broken dependency was detected, but to keep consistency
with the cmake build system used on Windows, add a special rule
to re-enable the pcre2 feature by default there.
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Suggested-by: Eli Schwartz <eschwartz@gentoo.org>
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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commit 837f637cf5 ("meson.build: correct setting of GIT_EXEC_PATH",
2025-05-19) corrected the GIT_EXEC_PATH build setting, but then forgot
to update the installation path for the library executables. This causes
a regression when attempting to execute commands, after installing to a
non-standard location (reported here[1]):
$ meson -Dprefix=/tmp/git -Dlibexecdir=libexec-different build
$ meson install
$ /tmp/git/bin/git --exec-path
/tmp/git/libexec-different
$ /tmp/git/bin/git daemon
git: 'daemon' is not a git command. See 'git --help'
In order to fix the issue, use the 'git_exec_path' variable (calculated
while processing -Dlibexecdir) as the 'install_dir' field during the
installation of the library executables.
[1]: <66fd343a-1351-4350-83eb-c797e47b7693@gmail.com>
Reported-by: irecca.kun@gmail.com
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code clean-up around object access API.
* ps/object-store:
odb: rename `read_object_with_reference()`
odb: rename `pretend_object_file()`
odb: rename `has_object()`
odb: rename `repo_read_object_file()`
odb: rename `oid_object_info()`
odb: trivial refactorings to get rid of `the_repository`
odb: get rid of `the_repository` when handling submodule sources
odb: get rid of `the_repository` when handling the primary source
odb: get rid of `the_repository` in `for_each()` functions
odb: get rid of `the_repository` when handling alternates
odb: get rid of `the_repository` in `odb_mkstemp()`
odb: get rid of `the_repository` in `assert_oid_type()`
odb: get rid of `the_repository` in `find_odb()`
odb: introduce parent pointers
object-store: rename files to "odb.{c,h}"
object-store: rename `object_directory` to `odb_source`
object-store: rename `raw_object_store` to `object_database`
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Build fix for FreeBSD.
* rj/freebsd-sysinfo-build-fix:
build: fix FreeBSD build when sysinfo compat library installed
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Update ".clang-format" and ".editorconfig" to match our style guide
a bit better.
* kn/clang-format-updates:
meson: add rule to run 'git clang-format'
clang-format: add 'RemoveBracesLLVM' to the main config
clang-format: set 'ColumnLimit' to 0
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Drop FreeBSD 4 support and assume we are at least at FreeBSD 6 with
memmem() supported.
* bs/config-mak-freebsd:
build: retire NO_UINTMAX_T
config.mak.uname: set NO_MEMMEM only for functional version
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In 4cba20fbdc6 (meson: prefer shell at "/bin/sh", 2025-04-25) we have
addressed an issue where the shell path embedded into Git was looked up
via PATH, which easily led to unportable shell paths other than the
usual "/bin/sh" location. The fix was to simply add '/bin' to the search
path explicitly, which made us prefer that directory over the PATH-based
lookup.
This fix causes issues on MINGW64 though, which uses Windows-style
paths. "/bin" is not an absolute Windows-style path, but Meson expects
the directories to be absolute. This leads to the following error:
meson.build:248:15: ERROR: Search directory /bin is not an absolute path.
Fix this by instead searching for both '/bin/sh' and 'sh', which also
causes us to prefer '/bin/sh' over a PATH-based lookup. Meson does
accept that path alright on MINGW64, even though it's not an absolute
Windows-style path, either.
Furthermore, this continues to work alright with cross-files, as well,
in case one wants to explicitly override the shell path:
$ meson setup build
...
Runtime executable paths
perl : /nix/store/gy10hw004rl2xfbfq41vnw0yb1w8rvbl-perl-5.40.0/bin/perl
python : /nix/store/sd81bvmch7njdpwx3lkjslixcbj5mivz-python3-3.13.4/bin/python3
shell : /bin/sh
$ cat >cross.ini <<-EOF
[binaries]
sh = '/nix/store/94lg0shvsfc845zy8gnflvpqxxiyijbz-bash-interactive-5.2p37/bin/bash'
EOF
$ meson setup build --cross-file=cross.ini --wipe
...
Runtime executable paths
perl : /nix/store/gy10hw004rl2xfbfq41vnw0yb1w8rvbl-perl-5.40.0/bin/perl
python : /nix/store/sd81bvmch7njdpwx3lkjslixcbj5mivz-python3-3.13.4/bin/python3
shell : /nix/store/94lg0shvsfc845zy8gnflvpqxxiyijbz-bash-interactive-5.2p37/bin/bash
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The summary of auto-detected features prints a boolean for every option
to tell the user whether or not the feature has been auto-enabled or
not. This summary can be improved though, as in some cases this boolean
is derived from a dependency. So if we pass in the dependency directly,
then Meson knows to both print a boolean and, if the dependency was
found, it also prints a version number.
Adapt the code accordingly and enable `bool_yn` so that actual booleans
are formatted similarly to dependencies. Before this change:
Auto-detected features
benchmarks : true
curl : true
expat : true
gettext : true
gitweb : true
iconv : true
pcre2 : true
perl : true
python : true
And after this change, we now see the version numbers as expected:
Auto-detected features
benchmarks : YES
curl : YES 8.14.1
expat : YES 2.7.1
gettext : YES
gitweb : YES
iconv : YES
pcre2 : YES 10.44
perl : YES
python : YES
Note that this change also enables colorization of the boolean options,
green for "YES" and red for "NO".
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The value for the 'https' backend option is printed twice: once via the
summary of auto-detected features and once via our summary of backends.
Drop it from the former summary.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When Python features are enabled we search both for a native and
non-native version of Python. This is wrong though: we don't use Python
in our build process, so there is no need to search for it in the first
place.
There is one location where we use the native version of Python, namely
when deciding whether or not we want to wire up git-p4(1). This check is
invalid though, as we shouldn't check for the build host to have Python,
but for the target host.
Fix this invalid check to use the non-native version of Python and stop
searching for a native version of Python altogether.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Commit 50dec7c566 ("config.mak.uname: add sysinfo() configuration for
cygwin", 2025-04-17) and later commit 187ce0222f ("configure.ac: upgrade
to a compilation check for sysinfo", 2025-05-19) added a 'sysinfo()'
check to the autoconf build.
The FreeBSD system has an optional sysinfo compatibility library, used
to assist in porting software, which causes the build to fail when it
is installed. The reason for the failure is the lack of '-lsysinfo'
during the linking step.
Several solutions were considered:
- add a 'linking' check to configure.ac in order to determine the
need to link a separate library (-lsysinfo). (This would require
a similar change to meson.build).
- change the order of the preprocessor conditionals in the total_ram()
function in 'builtin/gc.c', so that the *BSD sysctl() function
(in the HAVE_BSD_SYSCTL block) takes priority over the sysinfo()
function (in the HAVE_SYSINFO block).
- suppress the setting of HAVE_SYSINFO when HAVE_BSD_SYSCTL has been
defined (in both configure.ac and meson.build).
The first solution above, while simple, adds unnecessary code (the
sysinfo compat function is likely implemented using sysctl() anyway)
when git is happy to use sysctl() on *BSD systems.
The second solution would only be required by the autoconf and meson
build systems, the Makefile already sets the build variables to the
required values (since they are not 'auto-detected').
Here we opt for the final solution above, since it only requires that
we prioritise the 'auto-detected' build variables in the autoconf and
meson builds.
In order to fix the FreeBSD build, move the sysinfo() check after the
determination of the HAVE_BSD_SYSCTL build variable, suppressing the
setting of HAVE_SYSINFO if HAVE_BSD_SYSCTL is defined. Apply this logic
to both the configure.ac and meson.build file.
[Thanks go to Renato Botelho <garga@FreeBSD.org> for testing this patch
on FreeBSD.]
Tested-by: Renato Botelho <garga@FreeBSD.org>
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A previous commit removed the last user of it, and it is no
longer useful with the codebase moving towards C99, which
specifies its definition.
Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The Makefile has a 'style' rule to run 'git clang-format'. While Meson
intrinsically supports a 'clang-format' target, which can be run when
using the ninja backend by running 'ninja clang-format', this runs the
formatting on all existing files.
Our Meson build doesn't yet support a way to run 'git clang-format',
which runs the formatter between the working directory and commit
provided. Add a new 'style' target to Meson to mimic the target in the
Makefile.
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In the preceding commits we have renamed the structures contained in
"object-store.h" to `struct object_database` and `struct odb_backend`.
As such, the code files "object-store.{c,h}" are confusingly named now.
Rename them to "odb.{c,h}" accordingly.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Meson-based build/test framework now understands TAP output
generated by our tests.
* ps/meson-tap-parse:
meson: parse TAP output generated by our tests
meson: introduce kwargs variable for tests
test-lib: fail on unexpectedly passing tests
t7815: fix unexpectedly passing test on macOS
t/test-lib: fix TAP format for BASH_XTRACEFD warning
t/test-lib: don't print shell traces to stdout
t983*: use prereq to check for Python-specific git-p4(1) support
t9822: use prereq to check for ISO-8859-1 support
t: silence output from `test_create_repo()`
t: stop announcing prereqs
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By default, Meson only knows to pay respect to the exit code of tests to
judge whether or not it ran successfully. This can be changed though by
specifying the "protocol" parameter. Next to the default "exitcode"
protocol, Meson also supports the "tap" output that our tests already
know to generate.
Unfortunately, the "tap" protocol was incompatible with `meson test
--interactive` and caused a hang. We have upstreamed a fix [1] though,
so with the recent release of Meson 1.8 that fix is finally out and we
can start using the "tap" protocol when running with a recent-enough
version of this build tool.
With this change in place, Meson now properly detects how many subtests
ran and whether test suites have been skipped:
```
$ meson test t002*
ninja: Entering directory `/home/pks/Development/git/build'
1/10 t0024-crlf-archive OK 0.17s 2 subtests passed
2/10 t0022-crlf-rename OK 0.18s 2 subtests passed
3/10 t0029-core-unsetenvvars SKIP 0.15s
4/10 t0023-crlf-am OK 0.18s 2 subtests passed
5/10 t0025-crlf-renormalize OK 0.21s 3 subtests passed
6/10 t0026-eol-config OK 0.25s 5 subtests passed
7/10 t0020-crlf OK 0.81s 36 subtests passed
8/10 t0028-working-tree-encoding OK 0.85s 22 subtests passed
9/10 t0021-conversion OK 3.45s 38 subtests passed
10/10 t0027-auto-crlf OK 26.35s 2600 subtests passed
Ok: 9
Fail: 0
Skipped: 1
```
Note that when running `meson test --interactive` the test results will
now be marked as "ignored". This is because in interactive mode the file
descriptors will remain connected to the user's terminal, and it is
expected that the user interacts with the tests (e.g., spawn a debugger
or use `test_pause`). As such, the TAP output cannot be parsed reliably
by Meson in that case, so the tests are marked as ignored accordingly.
[1]: https://github.com/mesonbuild/meson/pull/13980
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Meson has the ability to create a kwargs dictionary that can then be
passed to any function call with the `kwargs:` positional argument. This
allows one to deduplicate common parameters that one wishes to pass to
several different function invocations.
Our tests already have one common parameter that we use everywhere,
"timeout", and we're about to add a second common parameter in the next
commit. Let's prepare for this by introducing `test_kwargs` so that we
can deduplicate these common arguments.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Build procedure updates.
* es/meson-configure-build-options-fix:
meson: reformat default options to workaround bug in `meson configure`
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Updates to meson-based build procedure.
* rj/build-tweaks-part2:
configure.ac: upgrade to a compilation check for sysinfo
meson.build: correct setting of GIT_EXEC_PATH
meson: correct path to system config/attribute files
meson: correct install location of YAML.pm
meson.build: quote the GITWEBDIR build configuration
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For the non-'runtime prefix' case, the meson build sets the GIT_EXEC_PATH
build variable to an absolute path equivalent to <prefix>/libexec/git-core.
In comparison, the default make build sets it to a relative path equivalent
to 'libexec/git-core'. Indeed, the make build requires the use of some
means outside of the Makefile (eg. config.mak[.*] or the command-line)
to set GIT_EXEC_PATH to anything other than 'libexec/git-core'.
For example, the make invocation:
$ make gitexecdir=/some/other/bin all install
will build git with GIT_EXEC_PATH set to '/some/other/bin' and install
the 'library' executables to that location. However, without setting the
'gitexecdir' make variable, irrespective of the 'runtime prefix' setting,
the GIT_EXEC_PATH is always set to 'libexec/git-core'.
The meson built-in 'libexecdir' option can be used to provide a similar
configurability. The default value for the option is 'libexec'. Attempting
to set the option to '' on the command-line, will reset it to the '.'
string, presumably to ensure a relative path value.
This commit allows the meson build, similar to the above, to configure the
project like:
$ meson setup --buildtype=debugoptimized -Dprefix=$HOME -Dpcre2=disabled \
-Dlibexecdir=/some/other/bin build
so that the GIT_EXEC_PATH is set to '/some/other/bin'. Absent the
-Dlibexecdir argument, the GIT_EXEC_PATH is set to 'libexec/git-core'.
In order to correct the value of GIT_EXEC_PATH, default the value to the
static string value 'libexec/git-core', and only override if the value
of the 'libexecdir' option has a value different to 'libexec' or '.'.
Also, like the Makefile, add a check for an absolute path when the
runtime prefix option is true (and if so, error out).
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The path to the system-wide config and attributes files are not being
set correctly in the meson build. Unless explicitly overridden on the
command line during setup, the 'gitconfig' and 'gitattributes' options
are defaulting to absolute paths in the '/etc' system directory. This
is only appropriate if the <prefix> is set specifically to '/usr'.
The directory in which these files are placed is generally referred to
as the 'system configuration directory' or 'sysconfdir' for short. When
the prefix is '/usr' then the sysconfdir is usually set to '/etc', but
any other value for prefix results in the relative directory value 'etc'
instead. (eg if prefix is '/usr/local', then the 'etc' relative value
results in a system configuration directory of '/usr/local/etc'). When
setting the 'sysconfdir' builtin option value, the meson system uses
exactly this algorithm, so we can use get_option('sysconfdir') directly
when setting the (non-overridden) build variables.
In order to allow for overriding from the command line, remove the
default values specified for the 'gitconfig' and 'gitattributes' options
in the 'meson_options.txt' file. This allows the user to specify any
pathname for those options, while being able to test for the unset
(empty) value. An absolute pathname will be used unchanged and a relative
pathname will be appended to '<prefix>/'. These values are then used to
set the 'ETC_GITCONFIG' and 'ETC_GITATTRIBUTES' build variables which are,
in turn, passed to the compiler as '-D' arguments.
When the 'gitconfig' or 'gitattributes' options are not used, then use
the built-in 'sysconfdir' and set the ETC_GITCONFIG build variable to
the string "<sysconfdir>/gitconfig". Similarly, set ETC_ATTRIBUTES to
"<sysconfdir>/gitattributes".
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The build configuration options with (non-empty) values, for example
filesystem paths potentially containing spaces, have been set using
the '.set_quoted()' method. However, the GITWEBDIR value has been
set using the '.set()' method instead. In order to correctly quote
the GITWEBDIR value, replace the '.set()' method with '.set_quoted()'.
Signed-off-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since 13cb20fc46 ("meson: fix compilation with Visual Studio",
2025-01-22) it has not been possible to list build options via `meson
configure`. This is due to Meson's static analysis of build options
failing to handle constant folding, and thinking we set a totally
invalid default `-std=`.
This is reported upstream but we anyways need to work with existing
versions. It turns out there is a simple solution: turn the entire
default option into a conditional branch, which means Meson sees either
nothing, or everything.
As a result, Git users can once again see pretty-printed options before
building.
Reported-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Bug: https://github.com/mesonbuild/meson/issues/14623
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Meson-based build framework update.
* dd/meson-perl-custom-path:
meson: allow customize perl installation path
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Meson-based build framework update.
* ps/meson-bin-sh:
meson: prefer shell at "/bin/sh"
meson: report detected runtime executable paths
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Some distros, notably Fedora, want to install non-core Perl libraries
into specific directory, namely /usr/share/perl5/vendor_perl.
The Makefile build system allows this by overriding perllibdir variable,
let's make meson works on par with our Makefile.
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add an equivalent to "make hdr-check" target to meson based builds.
* kn/meson-hdr-check:
makefile/meson: add 'check-headers' as alias for 'hdr-check'
meson: add support for 'hdr-check'
meson: rename 'third_party_sources' to 'third_party_excludes'
meson: move headers definition from 'contrib/coccinelle'
coccinelle: meson: rename variables to be more specific
ci/github: install git before checking out the repository
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Code clean-up for meson-based build infrastructure.
* es/meson-cleanup:
meson: only check for missing networking syms on non-Windows; add compat impls
meson: fix typo in function check that prevented checking for hstrerror
meson: add a couple missing networking dependencies
meson: do a full usage-based compile check for sysinfo
meson: check for getpagesize before using it
meson: simplify and parameterize various standard function checks
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The build procedure based on Meson learned to drive the
benchmarking tests.
* ps/meson-build-perf-bench:
meson: wire up benchmarking options
meson: wire up benchmarks
t/perf: fix benchmarks with out-of-tree builds
t/perf: use configured PERL_PATH
t/perf: fix benchmarks with alternate repo formats
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Reduce requirement for Perl in our documentation build and a few
scripts.
* ps/fewer-perl:
Documentation: stop depending on Perl to generate command list
Documentation: stop depending on Perl to massage user manual
request-pull: stop depending on Perl
filter-branch: stop depending on Perl
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Overhaul of the reftable API.
* ps/reftable-api-revamp:
reftable/table: move printing logic into test helper
reftable/constants: make block types part of the public interface
reftable/table: introduce iterator for table blocks
reftable/table: add `reftable_table` to the public interface
reftable/block: expose a generic iterator over reftable records
reftable/block: make block iterators reseekable
reftable/block: store block pointer in the block iterator
reftable/block: create public interface for reading blocks
git-zlib: use `struct z_stream_s` instead of typedef
reftable/block: rename `block_reader` to `reftable_block`
reftable/block: rename `block` to `block_data`
reftable/table: move reading block into block reader
reftable/block: simplify how we track restart points
reftable/blocksource: consolidate code into a single file
reftable/reader: rename data structure to "table"
reftable: fix formatting of the license header
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Wire up a couple of benchmarking options that we end up writing into our
"GIT-BUILD-OPTIONS" file. These options allow users to control how
exactly benchmarks are executed.
Note that neither `GIT_PERF_MAKE_COMMAND` nor `GIT_PERF_MAKE_OPTS` are
exposed as a build option. Those options are used by "t/perf/run", which
is not used by Meson.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Wire up benchmarks in Meson. The setup is mostly the same as how we wire
up our tests. The only difference is that benchmarks get wired up via
the `benchmark()` option instead of via `test()`, which gives them a bit
of special treatment:
- Benchmarks never run in parallel.
- Benchmarks aren't run by default when tests are executed.
- Meson does not inject the `MALLOC_PERTURB` environment variable.
Using benchmarks is quite simple:
```
$ meson setup build
# Run all benchmarks.
$ meson test -C build --benchmark
# Run a specific benchmark.
$ meson test -C build --benchmark p0000-*
```
Other than that the usual command line arguments accepted when running
tests are also accepted when running benchmarks.
Note that the benchmarking target is somewhat limited because it will
only run benchmarks for the current build. Other use cases, like running
benchmarks against multiple different versions of Git, are not currently
supported. Users should continue to use "t/perf/run" for those use
cases. The script should get extended at one point in time to support
Meson, but this is outside of the scope of this series.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Meson detects the path of the target shell via `find_program("sh")`,
which essentially does a lookup via `PATH`. This may easily lead to a
subtly-broken Git distribution when the build host has its shell in a
location that the target host doesn't know about.
Fix the issue by appending "/bin" to the custom program path, which
causes us to prefer "/bin/sh" over a `PATH`-based lookup. While
"/bin/sh" isn't standardized, this path tends to work alright on Linux
and BSD distributions. Furthermore, "/bin/sh" is also the path we pick
in our Makefile by default, which further demonstrates that this shell
fulfills our needs.
Note that we intentionally append, not prepend, to the custom program
path. This is because the program path can be configured by the user via
the `-Dsane_tool_path=` build option, which should take precedence over
any defaults we pick for the user.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Git needs to know about a couple of executable paths to pick at runtime.
This includes the system shell, but may also optionally include the Perl
and Python interpreters. Meson detects the location of these paths
automatically via `find_program()`, which does a lookup via the `PATH`
environment variable. As such, it may not be immediately obvious to the
developer which paths have been autodetected.
Improve this by exposing runtime executable paths at setup time.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These are added in the Makefile, but not in meson. They probably won't
work well on systems without them.
CMake adds them, but only on non-Windows. Actually, it only performs
compiler checks for hstrerror, but excludes that check on Windows with
the note that it is "incompatible with the Windows build". This seems to
be misleading -- it is not incompatible, it simply doesn't exist. Still,
the compat version should not be used.
I interpret this cmake logic to mean we shouldn't even be checking for
symbol availability on Windows. In addition to making it simple to add
compat definitions, this also probably shaves off a second or two of
configure time on Windows as no compiler check needs to be performed.
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Nowhere in the codebase do we otherwise check for strerror. Nowhere in
the codebase do we make use of -DNO_STRERROR. `strerror` is not a
networking function at all.
We do utilize `hstrerror` though, which is a networking function we
should have been checking here.
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As evidenced in config.mak.uname and configure.ac, there are various
possible scenarios where these libraries are default-enabled in the
build, which mainly boils down to: SunOS. -lresolv is simply not the
only library that, when it exists, probably needs to be linked to for
networking.
Check for and add -lnsl -lsocket as well.
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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