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object-file: only register submodule ODB if needed

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In a35e03dee0 ("submodule: lazily add submodule ODBs as alternates",
2021-09-08), Git was taught to add all known submodule ODBs as
alternates when attempting to read an object that doesn't exist, as a
fallback for when a submodule object is read as if it were in
the_repository. However, this behavior wasn't restricted to happen only
when reading from the_repository. Fix this.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Tan 2021-10-08 14:08:18 -07:00 committed by Junio C Hamano
parent 155b517d5c
commit eef71904ff
1 changed files with 8 additions and 1 deletions
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object-file.c
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@ -1614,7 +1614,14 @@ static int do_oid_object_info_extended(struct repository *r,
break;
}
if (register_all_submodule_odb_as_alternates())
/*
* If r is the_repository, this might be an attempt at
* accessing a submodule object as if it were in the_repository
* (having called add_submodule_odb() on that submodule's ODB).
* If any such ODBs exist, register them and try again.
*/
if (r == the_repository &&
register_all_submodule_odb_as_alternates())
/* We added some alternates; retry */
continue;