Function add_wants

fetch-pack.c:1303–1331

}

static void add_wants(const struct ref *wants, struct strbuf *req_buf)
{
	int use_ref_in_want = server_supports_feature("fetch", "ref-in-want", 0);

	for ( ; wants ; wants = wants->next) {
		const struct object_id *remote = &wants->old_oid;
		struct object *o;

		/*
		 * 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;
		}

		if (!use_ref_in_want || wants->exact_oid)
			packet_buf_write(req_buf, "want %s\n", oid_to_hex(remote));
		else
			packet_buf_write(req_buf, "want-ref %s\n", wants->name);
	}
}

static void add_common(struct strbuf *req_buf, struct oidset *common)
{