Function find_common

fetch-pack.c:350–642

}

static int find_common(struct fetch_negotiator *negotiator,
		       struct fetch_pack_args *args,
		       int fd[2], struct object_id *result_oid,
		       struct ref *refs)
{
	int fetching;
	int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval;
	int negotiation_round = 0, haves = 0;
	const struct object_id *oid;
	unsigned in_vain = 0;
	int got_continue = 0;
	int got_ready = 0;
	struct strbuf req_buf = STRBUF_INIT;
	size_t state_len = 0;
	struct packet_reader reader;
	struct oidset negotiation_include_oids = OIDSET_INIT;

	if (args->stateless_rpc && multi_ack == 1)
		die(_("the option '%s' requires '%s'"), "--stateless-rpc", "multi_ack_detailed");

	packet_reader_init(&reader, fd[0], NULL, 0,
			   PACKET_READ_CHOMP_NEWLINE |
			   PACKET_READ_DIE_ON_ERR_PACKET);

	mark_tips(negotiator, args->negotiation_restrict_tips);
	for_each_cached_alternate(negotiator, insert_one_alternate_object);

	fetching = 0;
	for ( ; refs ; refs = refs->next) {
		struct object_id *remote = &refs->old_oid;
		const char *remote_hex;
		struct object *o;

		if (!args->refetch) {
			/*
			* If that object is complete (i.e. it is an ancestor of a
			* local ref), we tell them we have it but do not have to
			* tell them about its ancestors, which they already know
			* about.
			*
			* We use lookup_object here because we are only
			* interested in the case we *know* the object is
			* reachable and we have already scanned it.
			*/
			if (((o = lookup_object(the_repository, remote)) != NULL) &&
					(o->flags & COMPLETE)) {
				continue;
			}
		}

		remote_hex = oid_to_hex(remote);
		if (!fetching) {
			struct strbuf c = STRBUF_INIT;
			if (multi_ack == 2)     strbuf_addstr(&c, " multi_ack_detailed");
			if (multi_ack == 1)     strbuf_addstr(&c, " multi_ack");
			if (no_done)            strbuf_addstr(&c, " no-done");
			if (use_sideband == 2)  strbuf_addstr(&c, " side-band-64k");
			if (use_sideband == 1)  strbuf_addstr(&c, " side-band");