if (!tree)
die("bad tree object %s", argv[1]);
if (read_tree(tree, size, 1))
die("unable to read tree object %s", argv[1]);
ret = diff_cache(active_cache, active_nr);
if (!tree)
die("bad tree object %s", argv[1]);
if (read_tree(tree, size, 1))
die("unable to read tree object %s", argv[1]);
ret = diff_cache(active_cache, active_nr);