-extern void cgit_print_diff(const char *old_hex, const char *new_hex);
-extern void cgit_print_snapshot(struct cacheitem *item, const char *hex,
+extern void cgit_print_diff(const char *head, const char *old_hex, const char *new_hex,
+ char *path);
+extern void cgit_print_snapshot(struct cacheitem *item, const char *hex,