refs: convert peel_ref to struct object_id

Convert peel_ref (and its corresponding backend) to struct object_id.

This transformation was done with an update to the declaration,
definition, comments, and test helper and the following semantic patch:

@@
expression E1, E2;
@@
- peel_ref(E1, E2.hash)
+ peel_ref(E1, &E2)

@@
expression E1, E2;
@@
- peel_ref(E1, E2->hash)
+ peel_ref(E1, E2)

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/t/helper/test-ref-store.c b/t/helper/test-ref-store.c
index af8dba956..cea3285ad 100644
--- a/t/helper/test-ref-store.c
+++ b/t/helper/test-ref-store.c
@@ -72,12 +72,12 @@ static int cmd_pack_refs(struct ref_store *refs, const char **argv)
 static int cmd_peel_ref(struct ref_store *refs, const char **argv)
 {
 	const char *refname = notnull(*argv++, "refname");
-	unsigned char sha1[20];
+	struct object_id oid;
 	int ret;
 
-	ret = refs_peel_ref(refs, refname, sha1);
+	ret = refs_peel_ref(refs, refname, &oid);
 	if (!ret)
-		puts(sha1_to_hex(sha1));
+		puts(oid_to_hex(&oid));
 	return ret;
 }