#include "builtin.h"
#include "cache.h"
#include "pack.h"
+#include "parse-options.h"
-static const char show_index_usage[] =
-"git show-index";
+static const char *const show_index_usage[] = {
+ "git show-index [--object-format=<hash-algorithm>]",
+ NULL
+};
int cmd_show_index(int argc, const char **argv, const char *prefix)
{
unsigned nr;
unsigned int version;
static unsigned int top_index[256];
- const unsigned hashsz = the_hash_algo->rawsz;
+ unsigned hashsz;
+ const char *hash_name = NULL;
+ int hash_algo;
+ const struct option show_index_options[] = {
+ OPT_STRING(0, "object-format", &hash_name, N_("hash-algorithm"),
+ N_("specify the hash algorithm to use")),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, prefix, show_index_options, show_index_usage, 0);
+
+ if (hash_name) {
+ hash_algo = hash_algo_by_name(hash_name);
+ if (hash_algo == GIT_HASH_UNKNOWN)
+ die(_("Unknown hash algorithm"));
+ repo_set_hash_algo(the_repository, hash_algo);
+ }
+
+ hashsz = the_hash_algo->rawsz;
- if (argc != 1)
- usage(show_index_usage);
if (fread(top_index, 2 * 4, 1, stdin) != 1)
die("unable to read header");
if (top_index[0] == htonl(PACK_IDX_SIGNATURE)) {