lock_ref_sha1_basic(): add a files_ref_store argument

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

refs/files-backend.c

@@ -1983,15 +1983,14 @@ static int remove_empty_directories(struct strbuf *path)
  * Locks a ref returning the lock on success and NULL on failure.
  * On failure errno is set to something meaningful.
  */
-static struct ref_lock *lock_ref_sha1_basic(const char *refname,
+static struct ref_lock *lock_ref_sha1_basic(struct files_ref_store *refs,
+					    const char *refname,
 					    const unsigned char *old_sha1,
 					    const struct string_list *extras,
 					    const struct string_list *skip,
 					    unsigned int flags, int *type,
 					    struct strbuf *err)
 {
-	struct files_ref_store *refs =
-		get_files_ref_store(NULL, "lock_ref_sha1_basic");
 	struct strbuf ref_file = STRBUF_INIT;
 	struct ref_lock *lock;
 	int last_errno = 0;
@@ -2001,6 +2000,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char *refname,
 	int attempts_remaining = 3;
 	int resolved;
 
+	assert_main_repository(&refs->base, "lock_ref_sha1_basic");
 	assert(err);
 
 	lock = xcalloc(1, sizeof(struct ref_lock));
@@ -2644,8 +2644,8 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms
 
 	logmoved = log;
 
-	lock = lock_ref_sha1_basic(newrefname, NULL, NULL, NULL, REF_NODEREF,
-				   NULL, &err);
+	lock = lock_ref_sha1_basic(refs, newrefname, NULL, NULL, NULL,
+				   REF_NODEREF, NULL, &err);
 	if (!lock) {
 		error("unable to rename '%s' to '%s': %s", oldrefname, newrefname, err.buf);
 		strbuf_release(&err);
@@ -2663,8 +2663,8 @@ int rename_ref(const char *oldrefname, const char *newrefname, const char *logms
 	return 0;
 
  rollback:
-	lock = lock_ref_sha1_basic(oldrefname, NULL, NULL, NULL, REF_NODEREF,
-				   NULL, &err);
+	lock = lock_ref_sha1_basic(refs, oldrefname, NULL, NULL, NULL,
+				   REF_NODEREF, NULL, &err);
 	if (!lock) {
 		error("unable to lock %s for rollback: %s", oldrefname, err.buf);
 		strbuf_release(&err);
@@ -3020,13 +3020,14 @@ static int files_create_symref(struct ref_store *ref_store,
 			       const char *refname, const char *target,
 			       const char *logmsg)
 {
+	struct files_ref_store *refs =
+		files_downcast(ref_store, 0, "create_symref");
 	struct strbuf err = STRBUF_INIT;
 	struct ref_lock *lock;
 	int ret;
 
-	files_downcast(ref_store, 0, "create_symref");
-
-	lock = lock_ref_sha1_basic(refname, NULL, NULL, NULL, REF_NODEREF, NULL,
+	lock = lock_ref_sha1_basic(refs, refname, NULL,
+				   NULL, NULL, REF_NODEREF, NULL,
 				   &err);
 	if (!lock) {
 		error("%s", err.buf);
@@ -3929,6 +3930,8 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
 		 reflog_expiry_cleanup_fn cleanup_fn,
 		 void *policy_cb_data)
 {
+	struct files_ref_store *refs =
+		get_files_ref_store(NULL, "reflog_expire");
 	static struct lock_file reflog_lock;
 	struct expire_reflog_cb cb;
 	struct ref_lock *lock;
@@ -3947,7 +3950,8 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
 	 * reference itself, plus we might need to update the
 	 * reference if --updateref was specified:
 	 */
-	lock = lock_ref_sha1_basic(refname, sha1, NULL, NULL, REF_NODEREF,
+	lock = lock_ref_sha1_basic(refs, refname, sha1,
+				   NULL, NULL, REF_NODEREF,
 				   &type, &err);
 	if (!lock) {
 		error("cannot lock ref '%s': %s", refname, err.buf);