refs: add a backend method structure

diff --git a/refs.h b/refs.h
index 442c1a5db8147262bf2894f3bc47b67683f838b6..52ea93b8c36cc64a60a0009a8619dae017effba8 100644 (file)
--- a/refs.h
+++ b/refs.h
@@ -544,4 +544,6 @@ int reflog_expire(const char *refname, const unsigned char *sha1,
                  reflog_expiry_cleanup_fn cleanup_fn,
                  void *policy_cb_data);
 
+int ref_storage_backend_exists(const char *name);
+
 #endif /* REFS_H */