sha1-file: pass git_hash_algo to hash_object_file()

Allow hash_object_file() to work on arbitrary repos by introducing a
git_hash_algo parameter. Change callers which have a struct repository
pointer in their scope to pass on the git_hash_algo from the said repo.
For all other callers, pass on the_hash_algo, which was already being
used internally at hash_object_file(). This functionality will be used
in the following patch to make check_object_signature() be able to work
on arbitrary repos (which, in turn, will be used to fix an
inconsistency at object.c:parse_object()).

Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/dir.c b/dir.c
index 7d255227b1..512c5d7ea6 100644
--- a/dir.c
+++ b/dir.c
@@ -1002,8 +1002,8 @@ static int add_patterns(const char *fname, const char *base, int baselen,
 				oidcpy(&oid_stat->oid,
 				       &istate->cache[pos]->oid);
 			else
-				hash_object_file(buf, size, "blob",
-						 &oid_stat->oid);
+				hash_object_file(the_hash_algo, buf, size,
+						 "blob", &oid_stat->oid);
 			fill_stat_data(&oid_stat->stat, &st);
 			oid_stat->valid = 1;
 		}