Function match_explicit

remote.c:1250–1331

}

static int match_explicit(struct ref *src, struct ref *dst,
			  struct ref ***dst_tail,
			  struct refspec_item *rs)
{
	struct ref *matched_src = NULL, *matched_dst = NULL;
	int allocated_src = 0, ret;

	const char *dst_value = rs->dst;
	char *dst_guess;

	if (rs->pattern || rs->matching || rs->negative) {
		ret = 0;
		goto out;
	}

	if (match_explicit_lhs(src, rs, &matched_src, &allocated_src) < 0) {
		ret = -1;
		goto out;
	}

	if (!dst_value) {
		int flag;

		dst_value = refs_resolve_ref_unsafe(get_main_ref_store(the_repository),
						    matched_src->name,
						    RESOLVE_REF_READING,
						    NULL, &flag);
		if (!dst_value ||
		    ((flag & REF_ISSYMREF) &&
		     !starts_with(dst_value, "refs/heads/")))
			die(_("%s cannot be resolved to branch"),
			    matched_src->name);
	}

	switch (count_refspec_match(dst_value, dst, &matched_dst)) {
	case 1:
		break;
	case 0:
		if (starts_with(dst_value, "refs/")) {
			matched_dst = make_linked_ref(dst_value, dst_tail);
		} else if (is_null_oid(&matched_src->new_oid)) {
			error(_("unable to delete '%s': remote ref does not exist"),
			      dst_value);
		} else if ((dst_guess = guess_ref(dst_value, matched_src))) {
			matched_dst = make_linked_ref(dst_guess, dst_tail);
			free(dst_guess);
		} else {
			show_push_unqualified_ref_name_error(dst_value,
							     matched_src->name);
		}
		break;
	default:
		matched_dst = NULL;
		error(_("dst refspec %s matches more than one"),
		      dst_value);
		break;
	}