sha1_file: convert check_sha1_signature to struct object_id

Convert this function to take a pointer to struct object_id and rename
it check_object_signature.  Introduce temporaries to convert the return
values of lookup_replace_object and lookup_replace_object_extended into
struct object_id.

The temporaries are needed because in order to convert
lookup_replace_object, open_istream needs to be converted, and
open_istream needs check_sha1_signature to be converted, causing a loop
of dependencies.  The temporaries will be removed in a future patch.

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

1 files changed, 8 insertions, 2 deletions

diff --git a/object.c b/object.c
index e6ad3f6..68bcf35 100644
--- a/object.c
+++ b/object.c
@@ -255,7 +255,10 @@ struct object *parse_object(const struct object_id *oid)
 	if ((obj && obj->type == OBJ_BLOB && has_object_file(oid)) ||
 	    (!obj && has_object_file(oid) &&
 	     sha1_object_info(oid->hash, NULL) == OBJ_BLOB)) {
-		if (check_sha1_signature(repl, NULL, 0, NULL) < 0) {
+		struct object_id reploid;
+		hashcpy(reploid.hash, repl);
+
+		if (check_object_signature(&reploid, NULL, 0, NULL) < 0) {
 			error("sha1 mismatch %s", oid_to_hex(oid));
 			return NULL;
 		}
@@ -265,7 +268,10 @@ struct object *parse_object(const struct object_id *oid)
 
 	buffer = read_sha1_file(oid->hash, &type, &size);
 	if (buffer) {
-		if (check_sha1_signature(repl, buffer, size, type_name(type)) < 0) {
+		struct object_id reploid;
+		hashcpy(reploid.hash, repl);
+
+		if (check_object_signature(&reploid, buffer, size, type_name(type)) < 0) {
 			free(buffer);
 			error("sha1 mismatch %s", sha1_to_hex(repl));
 			return NULL;