Function create_bundle

bundle.c:478–604

}

int create_bundle(struct repository *r, const char *path,
		  int argc, const char **argv, struct strvec *pack_options, int version)
{
	struct lock_file lock = LOCK_INIT;
	int bundle_fd = -1;
	int bundle_to_stdout;
	int ref_count = 0;
	struct rev_info revs, revs_copy;
	int min_version = 2;
	struct bundle_prerequisites_info bpi;
	int ret;
	int i;

	/* init revs to list objects for pack-objects later */
	save_commit_buffer = 0;
	repo_init_revisions(r, &revs, NULL);

	/*
	 * Pre-initialize the '--objects' flag so we can parse a
	 * --filter option successfully.
	 */
	revs.tree_objects = revs.blob_objects = 1;

	argc = setup_revisions(argc, argv, &revs, NULL);

	/*
	 * Reasons to require version 3:
	 *
	 * 1. @object-format is required because our hash algorithm is not
	 *    SHA1.
	 * 2. @filter is required because we parsed an object filter.
	 */
	if (the_hash_algo != &hash_algos[GIT_HASH_SHA1_LEGACY] || revs.filter.choice)
		min_version = 3;

	if (argc > 1) {
		ret = error(_("unrecognized argument: %s"), argv[1]);
		goto out;
	}

	bundle_to_stdout = !strcmp(path, "-");
	if (bundle_to_stdout)
		bundle_fd = 1;
	else
		bundle_fd = hold_lock_file_for_update(&lock, path,
						      LOCK_DIE_ON_ERROR);

	if (version == -1)
		version = min_version;

	if (version < 2 || version > 3) {
		die(_("unsupported bundle version %d"), version);
	} else if (version < min_version) {
		die(_("cannot write bundle version %d with algorithm %s"), version, the_hash_algo->name);
	} else if (version == 2) {
		write_or_die(bundle_fd, v2_bundle_signature, strlen(v2_bundle_signature));
	} else {
		const char *capability = "@object-format=";