if (S_ISDIR(entry.mode))
                        process_tree(revs,
-                                    lookup_tree(entry.sha1),
+                                    lookup_tree(entry.oid->hash),
                                     show, base, entry.path,
                                     cb_data);
                else if (S_ISGITLINK(entry.mode))
-                       process_gitlink(revs, entry.sha1,
+                       process_gitlink(revs, entry.oid->hash,
                                        show, base, entry.path,
                                        cb_data);
                else
                        process_blob(revs,
-                                    lookup_blob(entry.sha1),
+                                    lookup_blob(entry.oid->hash),
                                     show, base, entry.path,
                                     cb_data);
        }