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The global variable 'fetch_if_missing' controls whether a missing
object check should prompt a lazy fetch from a promisor remote.
In order to continue the libification effort, move it into
'struct repository' and initialize it to 1 by default to keep the
previous behavior.
builtin/fetch-pack.c, builtin/fsck.c, and builtin/rev-list.c are
entered via commands marked RUN_SETUP in git.c:commands[]. Their
'repo' parameter is only NULL when '-h' is given outside of a
repository, in which case either show_usage_if_asked() or
parse_options()'s own '-h' handling exits the process before
returning. We can therefore drop their UNUSED markers and assign
to 'repo' directly.
builtin/index-pack.c is entered via RUN_SETUP_GENTLY, so its
'repo' pointer can be NULL any time it is run outside of a
repository, not only with '-h'. We keep a NULL check there and fall
back to 'the_repository'.
builtin/pack-objects.c needs two adjustments to make 'repo' reach
every 'fetch_if_missing' call site: 'read_stdin_packs()' now takes a
'struct repository *'; 'option_parse_missing_action()', which
is registered as an OPT_CALLBACK, receives a 'repo' through the
option's 'value' field now.
Additionally, update the partial clone documentation to reflect
that this is now a per-repository flag.
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>
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The function `setup_git_env_internal()` does two completely unrelated
things:
- It configures the repository's gitdir and propagates environment
variables into it.
- It configures a couple of global parameters via environment
variables.
The function is called when we initialize the repository's path, but
it's also called via `chdir_notify_register()` whenever we change the
current working directory. While we indeed have to reconfigure the
gitdir in case it's a relative path, it doesn't make sense to reapply
the global environment variables.
Split up concerns of this function along the above delineation. Handling
of the global environment variables is moved into `init_git()`, as they
can be considered part of our setup procedure.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently, object files in libgit.a reference common_exit(), which is
contained in common-main.o. However, common-main.o also includes main(),
which references cmd_main() in git.o, which in turn depends on all the
builtin/*.o objects.
We would like to allow external users to link libgit.a without needing
to include so many extra objects. Enable this by splitting common_exit()
and check_bug_if_BUG() into a new file common-exit.c, and add
common-exit.o to LIB_OBJS so that these are included in libgit.a.
This split has previously been proposed ([1], [2]) to support fuzz tests
and unit tests by avoiding conflicting definitions for main(). However,
both of those issues were resolved by other methods of avoiding symbol
conflicts. Now we are trying to make libgit.a more self-contained, so
hopefully we can revisit this approach.
Additionally, move the initialization code out of main() into a new
init_git() function in its own file. Include this in libgit.a as well,
so that external users can share our setup code without calling our
main().
[1] https://lore.kernel.org/git/Yp+wjCPhqieTku3X@google.com/
[2] https://lore.kernel.org/git/20230517-unit-tests-v2-v2-1-21b5b60f4b32@google.com/
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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