for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!allow_options || *arg != '-') {
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!allow_options || *arg != '-') {
if (find_copies_harder && detect_rename != DIFF_DETECT_COPY)
usage(diff_cache_usage);
if (!tree_name || get_sha1(tree_name, sha1))
usage(diff_cache_usage);
if (find_copies_harder && detect_rename != DIFF_DETECT_COPY)
usage(diff_cache_usage);
if (!tree_name || get_sha1(tree_name, sha1))
usage(diff_cache_usage);