+extern void cgit_print_summary();
+extern void cgit_print_log(const char *tip, int ofs, int cnt, char *grep);
+extern void cgit_print_view(const char *hex);
+extern void cgit_print_tree(const char *hex, char *path);
+extern void cgit_print_commit(const char *hex);
+extern void cgit_print_diff(const char *old_hex, const char *new_hex);