--- /dev/null
+/*
+ * GIT - The information manager from hell
+ */
+
+#include "cache.h"
+#include "refs.h"
+#include "builtin.h"
+
+int cmd_check_ref_format(int argc, const char **argv, char **envp)
+{
+ if (argc != 2)
+ usage("git check-ref-format refname");
+ return !!check_ref_format(argv[1]);
+}