git

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#include "builtin.h"
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#include "config.h"
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#include "gettext.h"
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#include "run-command.h"
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#include "parse-options.h"
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#include "strbuf.h"
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#define VERIFY_PACK_VERBOSE 01
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#define VERIFY_PACK_STAT_ONLY 02
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static int verify_one_pack(const char *path, unsigned int flags, const char *hash_algo)
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{
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	struct child_process index_pack = CHILD_PROCESS_INIT;
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	struct strvec *argv = &index_pack.args;
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	struct strbuf arg = STRBUF_INIT;
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	int verbose = flags & VERIFY_PACK_VERBOSE;
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	int stat_only = flags & VERIFY_PACK_STAT_ONLY;
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	int err;
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	strvec_push(argv, "index-pack");
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	if (stat_only)
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		strvec_push(argv, "--verify-stat-only");
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	else if (verbose)
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		strvec_push(argv, "--verify-stat");
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	else
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		strvec_push(argv, "--verify");
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	if (hash_algo)
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		strvec_pushf(argv, "--object-format=%s", hash_algo);
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	/*
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	 * In addition to "foo.pack" we accept "foo.idx" and "foo";
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	 * normalize these forms to "foo.pack" for "index-pack --verify".
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	 */
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	strbuf_addstr(&arg, path);
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	if (strbuf_strip_suffix(&arg, ".idx") ||
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	    !ends_with(arg.buf, ".pack"))
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		strbuf_addstr(&arg, ".pack");
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	strvec_push(argv, arg.buf);
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	index_pack.git_cmd = 1;
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	err = run_command(&index_pack);
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	if (verbose || stat_only) {
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		if (err)
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			printf("%s: bad\n", arg.buf);
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		else {
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			if (!stat_only)
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				printf("%s: ok\n", arg.buf);
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		}
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	}
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	strbuf_release(&arg);
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	return err;
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}
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static const char * const verify_pack_usage[] = {
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	N_("git verify-pack [-v | --verbose] [-s | --stat-only] [--] <pack>.idx..."),
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	NULL
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};
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int cmd_verify_pack(int argc, const char **argv, const char *prefix)
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{
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	int err = 0;
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	unsigned int flags = 0;
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	const char *object_format = NULL;
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	int i;
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	const struct option verify_pack_options[] = {
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		OPT_BIT('v', "verbose", &flags, N_("verbose"),
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			VERIFY_PACK_VERBOSE),
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		OPT_BIT('s', "stat-only", &flags, N_("show statistics only"),
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			VERIFY_PACK_STAT_ONLY),
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		OPT_STRING(0, "object-format", &object_format, N_("hash"),
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			   N_("specify the hash algorithm to use")),
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		OPT_END()
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	};
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	git_config(git_default_config, NULL);
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	argc = parse_options(argc, argv, prefix, verify_pack_options,
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			     verify_pack_usage, 0);
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	if (argc < 1)
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		usage_with_options(verify_pack_usage, verify_pack_options);
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	for (i = 0; i < argc; i++) {
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		if (verify_one_pack(argv[i], flags, object_format))
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			err = 1;
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	}
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	return err;
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}
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