1 file changed, 9 insertions, 0 deletions
diff --git a/source/shared.c b/source/shared.c
index 0bd9fe3..a20773b 100644
--- a/source/shared.c
+++ b/source/shared.c
@@ -756,3 +756,12 @@ int cgit_readme_is_tracked(const char *readme)
 
 	return colon && colon[1];
 }
+
+int cgit_notes_ref_usable(const char *notes_ref)
+{
+	struct object_id oid;
+
+	if (repo_get_oid_treeish(the_repository, notes_ref, &oid))
+		return 0;
+	return !!parse_tree_indirect(&oid);
+}