extern int cmd_update_index(int argc, const char **argv, const char *prefix);
extern int cmd_update_ref(int argc, const char **argv, const char *prefix);
extern int cmd_upload_archive(int argc, const char **argv, const char *prefix);
extern int cmd_update_index(int argc, const char **argv, const char *prefix);
extern int cmd_update_ref(int argc, const char **argv, const char *prefix);
extern int cmd_upload_archive(int argc, const char **argv, const char *prefix);