Function do_fetch_pack

fetch-pack.c:1130–1279

}

static struct ref *do_fetch_pack(struct fetch_pack_args *args,
				 int fd[2],
				 const struct ref *orig_ref,
				 struct ref **sought, int nr_sought,
				 struct shallow_info *si,
				 struct string_list *pack_lockfiles)
{
	struct fsck_options fsck_options = { 0 };
	struct repository *r = the_repository;
	struct ref *ref = copy_ref_list(orig_ref);
	struct object_id oid;
	const char *agent_feature;
	size_t agent_len;
	struct fetch_negotiator negotiator_alloc;
	struct fetch_negotiator *negotiator;

	negotiator = &negotiator_alloc;
	if (args->refetch) {
		fetch_negotiator_init_noop(negotiator);
	} else {
		fetch_negotiator_init(r, negotiator);
	}

	sort_ref_list(&ref, ref_compare_name);
	QSORT(sought, nr_sought, cmp_ref_by_name);

	if ((agent_feature = server_feature_value("agent", &agent_len))) {
		agent_supported = 1;
		if (agent_len)
			print_verbose(args, _("Server version is %.*s"),
				      (int)agent_len, agent_feature);
	}

	if (!server_supports("session-id"))
		advertise_sid = 0;

	if (server_supports("shallow"))
		print_verbose(args, _("Server supports %s"), "shallow");
	else if (args->depth > 0 || is_repository_shallow(r))
		die(_("Server does not support shallow clients"));
	if (args->depth > 0 || args->deepen_since || args->deepen_not)
		args->deepen = 1;
	if (server_supports("multi_ack_detailed")) {
		print_verbose(args, _("Server supports %s"), "multi_ack_detailed");
		multi_ack = 2;
		if (server_supports("no-done")) {
			print_verbose(args, _("Server supports %s"), "no-done");
			if (args->stateless_rpc)
				no_done = 1;
		}
	}
	else if (server_supports("multi_ack")) {
		print_verbose(args, _("Server supports %s"), "multi_ack");
		multi_ack = 1;
	}
	if (server_supports("side-band-64k")) {
		print_verbose(args, _("Server supports %s"), "side-band-64k");
		use_sideband = 2;