extern int cmd_push(int argc, const char **argv, char **envp);
extern int cmd_grep(int argc, const char **argv, char **envp);
+extern int cmd_rev_list(int argc, const char **argv, char **envp);
+extern int cmd_check_ref_format(int argc, const char **argv, char **envp);
+extern int cmd_init_db(int argc, const char **argv, char **envp);
#endif