refs: make verify_refname_available() virtual

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

1 files changed, 10 insertions, 0 deletions

diff --git a/refs.c b/refs.c
index 775c54e..a5c1108 100644
--- a/refs.c
+++ b/refs.c
@@ -1428,3 +1428,13 @@ int ref_transaction_commit(struct ref_transaction *transaction,
 
 	return refs->be->transaction_commit(refs, transaction, err);
 }
+
+int verify_refname_available(const char *refname,
+			     const struct string_list *extra,
+			     const struct string_list *skip,
+			     struct strbuf *err)
+{
+	struct ref_store *refs = get_ref_store(NULL);
+
+	return refs->be->verify_refname_available(refs, refname, extra, skip, err);
+}