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refs.c: remove fallback-to-main-store code get_submodule_ref_store()

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At this state, there are three get_submodule_ref_store() callers:

 - for_each_remote_ref_submodule()
 - handle_revision_pseudo_opt()
 - resolve_gitlink_ref()

The first two deal explicitly with submodules (and we should never fall
back to the main ref store as a result). They are only called from
submodule.c:

 - find_first_merges()
 - submodule_needs_pushing()
 - push_submodule()

The last one, as its name implies, deals only with submodules too, and
the "submodule" (path) argument must be a non-NULL, non-empty string.

So, this "if NULL or empty string" code block should never ever
trigger. And it's wrong to fall back to the main ref store
anyway. Delete it.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2017-08-23 19:37:03 +07:00 committed by Junio C Hamano
parent 32619f99f9
commit 82a150f27a
1 changed files with 3 additions and 8 deletions
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11
refs.c
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@ -1587,6 +1587,9 @@ struct ref_store *get_submodule_ref_store(const char *submodule)
char *to_free = NULL;
size_t len;
if (!submodule)
return NULL;
if (submodule) {
len = strlen(submodule);
while (len && is_dir_sep(submodule[len - 1]))
@ -1595,14 +1598,6 @@ struct ref_store *get_submodule_ref_store(const char *submodule)
return NULL;
}
if (!submodule || !*submodule) {
/*
* FIXME: This case is ideally not allowed. But that
* can't happen until we clean up all the callers.
*/
return get_main_ref_store();
}
if (submodule[len])
/* We need to strip off one or more trailing slashes */
submodule = to_free = xmemdupz(submodule, len);