Function match_push_refs

remote.c:1572–1662

* Given the set of refs the local repository has, the set of refs the * remote repository has, and the refspec used for push, determine * what remote refs we will update and with what value by setting * peer_ref (which object is being pushed) and force (if the push is * forced) in elements of "dst". The function may add new elements to * dst (e.g. pushing to a new branch, done in match_explic

 * dst (e.g. pushing to a new branch, done in match_explicit_refs).
 */
int match_push_refs(struct ref *src, struct ref **dst,
		    struct refspec *rs, int flags)
{
	int send_all = flags & MATCH_REFS_ALL;
	int send_mirror = flags & MATCH_REFS_MIRROR;
	int send_prune = flags & MATCH_REFS_PRUNE;
	int errs;
	struct ref *ref, **dst_tail = tail_ref(dst);
	struct string_list dst_ref_index = STRING_LIST_INIT_NODUP;

	/* If no refspec is provided, use the default ":" */
	if (!rs->nr)
		refspec_append(rs, ":");

	errs = match_explicit_refs(src, *dst, &dst_tail, rs);

	/* pick the remainder */
	for (ref = src; ref; ref = ref->next) {
		struct string_list_item *dst_item;
		struct ref *dst_peer;
		const struct refspec_item *pat = NULL;
		char *dst_name;

		dst_name = get_ref_match(rs, ref, send_mirror, FROM_SRC, &pat);
		if (!dst_name)
			continue;

		if (!dst_ref_index.nr)
			prepare_ref_index(&dst_ref_index, *dst);

		dst_item = string_list_lookup(&dst_ref_index, dst_name);
		dst_peer = dst_item ? dst_item->util : NULL;
		if (dst_peer) {
			if (dst_peer->peer_ref)
				/* We're already sending something to this ref. */
				goto free_name;
		} else {
			if (pat->matching && !(send_all || send_mirror))
				/*
				 * Remote doesn't have it, and we have no
				 * explicit pattern, and we don't have
				 * --all or --mirror.
				 */
				goto free_name;

			/* Create a new one and link it */
			dst_peer = make_linked_ref(dst_name, &dst_tail);
			oidcpy(&dst_peer->new_oid, &ref->new_oid);
			string_list_insert(&dst_ref_index,
				dst_peer->name)->util = dst_peer;
		}
		dst_peer->peer_ref = copy_ref(ref);
		dst_peer->force = pat->force;
	free_name:
		free(dst_name);
	}

	string_list_clear(&dst_ref_index, 0);