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submodule-config: add skip_if_read option to repo_read_gitmodules()

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Currently, submodule-config.c doesn't have an externally accessible
function to read gitmodules only if it wasn't already read. But this
exact behavior is internally implemented by gitmodules_read_check(), to
perform a lazy load. Let's merge this function with
repo_read_gitmodules() adding a 'skip_if_read' which allows both
internal and external callers to access this functionality. This
simplifies a little the code. The added option will also be used in
the following patch.

Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Matheus Tavares
2020-01-15 23:39:55 -03:00
committed by Junio C Hamano
parent 1d1729caeb
commit d7992421e1
4 changed files with 10 additions and 16 deletions
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18
submodule-config.c
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@ -674,10 +674,13 @@ static int gitmodules_cb(const char *var, const char *value, void *data)
return parse_config(var, value, &parameter);
}
void repo_read_gitmodules(struct repository *repo)
void repo_read_gitmodules(struct repository *repo, int skip_if_read)
{
submodule_cache_check_init(repo);
if (repo->submodule_cache->gitmodules_read && skip_if_read)
return;
if (repo_read_index(repo) < 0)
return;
@ -703,20 +706,11 @@ void gitmodules_config_oid(const struct object_id *commit_oid)
the_repository->submodule_cache->gitmodules_read = 1;
}
static void gitmodules_read_check(struct repository *repo)
{
submodule_cache_check_init(repo);
/* read the repo's .gitmodules file if it hasn't been already */
if (!repo->submodule_cache->gitmodules_read)
repo_read_gitmodules(repo);
}
const struct submodule *submodule_from_name(struct repository *r,
const struct object_id *treeish_name,
const char *name)
{
gitmodules_read_check(r);
repo_read_gitmodules(r, 1);
return config_from(r->submodule_cache, treeish_name, name, lookup_name);
}
@ -724,7 +718,7 @@ const struct submodule *submodule_from_path(struct repository *r,
const struct object_id *treeish_name,
const char *path)
{
gitmodules_read_check(r);
repo_read_gitmodules(r, 1);
return config_from(r->submodule_cache, treeish_name, path, lookup_path);
}