1 files changed, 91 insertions, 0 deletions
diff --git a/builtin/verify-pack.c b/builtin/verify-pack.c
new file mode 100644
index 0000000..011dddd
--- /dev/null
+++ b/builtin/verify-pack.c
@@ -0,0 +1,91 @@
+#include "builtin.h"
+#include "config.h"
+#include "gettext.h"
+#include "run-command.h"
+#include "parse-options.h"
+#include "strbuf.h"
+
+#define VERIFY_PACK_VERBOSE 01
+#define VERIFY_PACK_STAT_ONLY 02
+
+static int verify_one_pack(const char *path, unsigned int flags, const char *hash_algo)
+{
+	struct child_process index_pack = CHILD_PROCESS_INIT;
+	struct strvec *argv = &index_pack.args;
+	struct strbuf arg = STRBUF_INIT;
+	int verbose = flags & VERIFY_PACK_VERBOSE;
+	int stat_only = flags & VERIFY_PACK_STAT_ONLY;
+	int err;
+
+	strvec_push(argv, "index-pack");
+
+	if (stat_only)
+		strvec_push(argv, "--verify-stat-only");
+	else if (verbose)
+		strvec_push(argv, "--verify-stat");
+	else
+		strvec_push(argv, "--verify");
+
+	if (hash_algo)
+		strvec_pushf(argv, "--object-format=%s", hash_algo);
+
+	/*
+	 * In addition to "foo.pack" we accept "foo.idx" and "foo";
+	 * normalize these forms to "foo.pack" for "index-pack --verify".
+	 */
+	strbuf_addstr(&arg, path);
+	if (strbuf_strip_suffix(&arg, ".idx") ||
+	    !ends_with(arg.buf, ".pack"))
+		strbuf_addstr(&arg, ".pack");
+	strvec_push(argv, arg.buf);
+
+	index_pack.git_cmd = 1;
+
+	err = run_command(&index_pack);
+
+	if (verbose || stat_only) {
+		if (err)
+			printf("%s: bad\n", arg.buf);
+		else {
+			if (!stat_only)
+				printf("%s: ok\n", arg.buf);
+		}
+	}
+	strbuf_release(&arg);
+
+	return err;
+}
+
+static const char * const verify_pack_usage[] = {
+	N_("git verify-pack [-v | --verbose] [-s | --stat-only] [--] <pack>.idx..."),
+	NULL
+};
+
+int cmd_verify_pack(int argc, const char **argv, const char *prefix)
+{
+	int err = 0;
+	unsigned int flags = 0;
+	const char *object_format = NULL;
+	int i;
+	const struct option verify_pack_options[] = {
+		OPT_BIT('v', "verbose", &flags, N_("verbose"),
+			VERIFY_PACK_VERBOSE),
+		OPT_BIT('s', "stat-only", &flags, N_("show statistics only"),
+			VERIFY_PACK_STAT_ONLY),
+		OPT_STRING(0, "object-format", &object_format, N_("hash"),
+			   N_("specify the hash algorithm to use")),
+		OPT_END()
+	};
+
+	git_config(git_default_config, NULL);
+	argc = parse_options(argc, argv, prefix, verify_pack_options,
+			     verify_pack_usage, 0);
+	if (argc < 1)
+		usage_with_options(verify_pack_usage, verify_pack_options);
+	for (i = 0; i < argc; i++) {
+		if (verify_one_pack(argv[i], flags, object_format))
+			err = 1;
+	}
+
+	return err;
+}