refs: convert reflog_expire parameter to struct object_id

reflog_expire already used struct object_id internally, but it did not
take it as a parameter.  Adjust the parameter (and the callers) to pass
a pointer to struct object_id instead of a pointer to unsigned char.
Remove the temporary inserted earlier as it is no longer required.

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

builtin/reflog.c

@@ -589,7 +589,7 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
 		for (i = 0; i < collected.nr; i++) {
 			struct collected_reflog *e = collected.e[i];
 			set_reflog_expiry_param(&cb.cmd, explicit_expiry, e->reflog);
-			status |= reflog_expire(e->reflog, e->oid.hash, flags,
+			status |= reflog_expire(e->reflog, &e->oid, flags,
 						reflog_expiry_prepare,
 						should_expire_reflog_ent,
 						reflog_expiry_cleanup,
@@ -607,7 +607,7 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
 			continue;
 		}
 		set_reflog_expiry_param(&cb.cmd, explicit_expiry, ref);
-		status |= reflog_expire(ref, oid.hash, flags,
+		status |= reflog_expire(ref, &oid, flags,
 					reflog_expiry_prepare,
 					should_expire_reflog_ent,
 					reflog_expiry_cleanup,
@@ -683,7 +683,7 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix)
 			cb.cmd.expire_total = 0;
 		}
 
-		status |= reflog_expire(ref, oid.hash, flags,
+		status |= reflog_expire(ref, &oid, flags,
 					reflog_expiry_prepare,
 					should_expire_reflog_ent,
 					reflog_expiry_cleanup,

refs.c

@@ -2010,19 +2010,19 @@ int delete_reflog(const char *refname)
 }
 
 int refs_reflog_expire(struct ref_store *refs,
-		       const char *refname, const unsigned char *sha1,
+		       const char *refname, const struct object_id *oid,
 		       unsigned int flags,
 		       reflog_expiry_prepare_fn prepare_fn,
 		       reflog_expiry_should_prune_fn should_prune_fn,
 		       reflog_expiry_cleanup_fn cleanup_fn,
 		       void *policy_cb_data)
 {
-	return refs->be->reflog_expire(refs, refname, sha1, flags,
+	return refs->be->reflog_expire(refs, refname, oid, flags,
 				       prepare_fn, should_prune_fn,
 				       cleanup_fn, policy_cb_data);
 }
 
-int reflog_expire(const char *refname, const unsigned char *sha1,
+int reflog_expire(const char *refname, const struct object_id *oid,
 		  unsigned int flags,
 		  reflog_expiry_prepare_fn prepare_fn,
 		  reflog_expiry_should_prune_fn should_prune_fn,
@@ -2030,7 +2030,7 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
 		  void *policy_cb_data)
 {
 	return refs_reflog_expire(get_main_ref_store(),
-				  refname, sha1, flags,
+				  refname, oid, flags,
 				  prepare_fn, should_prune_fn,
 				  cleanup_fn, policy_cb_data);
 }

refs.h

@@ -703,20 +703,20 @@ typedef int reflog_expiry_should_prune_fn(struct object_id *ooid,
 typedef void reflog_expiry_cleanup_fn(void *cb_data);
 
 /*
- * Expire reflog entries for the specified reference. sha1 is the old
+ * Expire reflog entries for the specified reference. oid is the old
  * value of the reference. flags is a combination of the constants in
  * enum expire_reflog_flags. The three function pointers are described
  * above. On success, return zero.
  */
 int refs_reflog_expire(struct ref_store *refs,
 		       const char *refname,
-		       const unsigned char *sha1,
+		       const struct object_id *oid,
 		       unsigned int flags,
 		       reflog_expiry_prepare_fn prepare_fn,
 		       reflog_expiry_should_prune_fn should_prune_fn,
 		       reflog_expiry_cleanup_fn cleanup_fn,
 		       void *policy_cb_data);
-int reflog_expire(const char *refname, const unsigned char *sha1,
+int reflog_expire(const char *refname, const struct object_id *oid,
 		  unsigned int flags,
 		  reflog_expiry_prepare_fn prepare_fn,
 		  reflog_expiry_should_prune_fn should_prune_fn,

refs/files-backend.c

@@ -2908,7 +2908,7 @@ static int expire_reflog_ent(struct object_id *ooid, struct object_id *noid,
 }
 
 static int files_reflog_expire(struct ref_store *ref_store,
-			       const char *refname, const unsigned char *sha1,
+			       const char *refname, const struct object_id *oid,
 			       unsigned int flags,
 			       reflog_expiry_prepare_fn prepare_fn,
 			       reflog_expiry_should_prune_fn should_prune_fn,
@@ -2925,7 +2925,6 @@ static int files_reflog_expire(struct ref_store *ref_store,
 	int status = 0;
 	int type;
 	struct strbuf err = STRBUF_INIT;
-	struct object_id oid;
 
 	memset(&cb, 0, sizeof(cb));
 	cb.flags = flags;
@@ -2937,7 +2936,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
 	 * reference itself, plus we might need to update the
 	 * reference if --updateref was specified:
 	 */
-	lock = lock_ref_sha1_basic(refs, refname, sha1,
+	lock = lock_ref_sha1_basic(refs, refname, oid->hash,
 				   NULL, NULL, REF_NODEREF,
 				   &type, &err);
 	if (!lock) {
@@ -2975,9 +2974,7 @@ static int files_reflog_expire(struct ref_store *ref_store,
 		}
 	}
 
-	hashcpy(oid.hash, sha1);
-
-	(*prepare_fn)(refname, &oid, cb.policy_cb);
+	(*prepare_fn)(refname, oid, cb.policy_cb);
 	refs_for_each_reflog_ent(ref_store, refname, expire_reflog_ent, &cb);
 	(*cleanup_fn)(cb.policy_cb);
 

refs/packed-backend.c

@@ -1519,7 +1519,7 @@ static int packed_delete_reflog(struct ref_store *ref_store,
 }
 
 static int packed_reflog_expire(struct ref_store *ref_store,
-				const char *refname, const unsigned char *sha1,
+				const char *refname, const struct object_id *oid,
 				unsigned int flags,
 				reflog_expiry_prepare_fn prepare_fn,
 				reflog_expiry_should_prune_fn should_prune_fn,

refs/refs-internal.h

@@ -608,7 +608,7 @@ typedef int create_reflog_fn(struct ref_store *ref_store, const char *refname,
 			     int force_create, struct strbuf *err);
 typedef int delete_reflog_fn(struct ref_store *ref_store, const char *refname);
 typedef int reflog_expire_fn(struct ref_store *ref_store,
-			     const char *refname, const unsigned char *sha1,
+			     const char *refname, const struct object_id *oid,
 			     unsigned int flags,
 			     reflog_expiry_prepare_fn prepare_fn,
 			     reflog_expiry_should_prune_fn should_prune_fn,