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Use the macro FREE_AND_NULL to release allocated objects and clear their
pointers. This is shorter and documents the intent better by combining
the two related operations into one.
Patch generated with Coccinelle and contrib/coccinelle/free.cocci.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ideally we'd free the existing gitdir field before assigning
the new one, to avoid a memory leak. But we can't do so
safely because some callers do the equivalent of:
set_git_dir(get_git_dir());
We can detect that case as a noop, but there are even more
complicated cases like:
set_git_dir(remove_leading_path(worktree, get_git_dir());
where we really do need to do some work, but the original
string must remain valid.
Rather than put the burden on callers to make a copy of the
string (only to free it later, since we'll make a copy of it
ourselves), let's solve the problem inside set_git_dir(). We
can make a copy of the pointer for the old gitdir, and then
avoid freeing it until after we've made our new copy.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It's possible that the repository data may be initialized
twice (e.g., after doing a chdir() to the top of the
worktree we may have to adjust a relative git_dir path). We
should free() any existing fields before assigning to them
to avoid leaks.
This should be safe, as the fields are set based on the
environment or on other strings like the gitdir or
commondir. That makes it impossible that we are feeding an
alias to the just-freed string.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git grep --recurse-submodules" has been reworked to give a more
consistent output across submodule boundary (and do its thing
without having to fork a separate process).
* bw/grep-recurse-submodules:
grep: recurse in-process using 'struct repository'
submodule: merge repo_read_gitmodules and gitmodules_config
submodule: check for unmerged .gitmodules outside of config parsing
submodule: check for unstaged .gitmodules outside of config parsing
submodule: remove fetch.recursesubmodules from submodule-config parsing
submodule: remove submodule.fetchjobs from submodule-config parsing
config: add config_from_gitmodules
cache.h: add GITMODULES_FILE macro
repository: have the_repository use the_index
repo_read_index: don't discard the index
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Have the index state which is stored in 'the_repository' be a pointer to
the in-core index 'the_index'. This makes it easier to begin
transitioning more parts of the code base to operate on a 'struct
repository'.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Have 'repo_read_index()' behave more like the other read_index family of
functions and don't discard the index if it has already been populated
and instead rely on the quick return of read_index_from which has:
/* istate->initialized covers both .git/index and .git/sharedindex.xxx */
if (istate->initialized)
return istate->cache_nr;
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce 'repo_submodule_init()' which performs initialization of a
'struct repository' as a submodule of another 'struct repository'.
The resulting submodule 'struct repository' can be in one of three states:
1. The submodule is initialized and has a worktree.
2. The submodule is initialized but does not have a worktree. This
would occur when the submodule's gitdir is present in the
superproject's 'gitdir/modules/' directory yet the submodule has not
been checked out in superproject's worktree.
3. The submodule remains uninitialized due to an error in the
initialization process or there is no matching submodule at the
provided path in the superproject.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Refactor how 'the_submodule_cache' is handled so that it can be stored
inside of a repository object. Also migrate 'the_submodule_cache' to be
stored in 'the_repository'.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach the config machinery to read config information from a repository
object. This involves storing a 'struct config_set' inside the
repository object and adding a number of functions (repo_config*) to be
able to query a repository's config.
The current config API enables lazy-loading of the config. This means
that when 'git_config_get_int()' is called, if the_config_set hasn't
been populated yet, then it will be populated and properly initialized by
reading the necessary config files (system wide .gitconfig, user's home
.gitconfig, and the repository's config). To maintain this paradigm,
the new API to read from a repository object's config will also perform
this lazy-initialization.
Since both APIs (git_config_get* and repo_config_get*) have the same
semantics we can migrate the default config to be stored within
'the_repository' and just have the 'git_config_get*' family of functions
redirect to the 'repo_config_get*' functions.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Introduce the repository object 'struct repository' which can be used to
hold all state pertaining to a git repository.
Some of the benefits of object-ifying a repository are:
1. Make the code base more readable and easier to reason about.
2. Allow for working on multiple repositories, specifically
submodules, within the same process. Currently the process for
working on a submodule involves setting up an argv_array of options
for a particular command and then launching a child process to
execute the command in the context of the submodule. This is
clunky and can require lots of little hacks in order to ensure
correctness. Ideally it would be nice to simply pass a repository
and an options struct to a command.
3. Eliminating reliance on global state will make it easier to
enable the use of threading to improve performance.
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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René Scharfe
Jeff King
Junio C Hamano
Brandon Williams
brian m. carlson