wikimedia / mediawiki

		// (a) Check if container already exists

		$stat = $this->getContainerStat( $fullCont );

		if ( is_array( $stat ) ) {

			return $status; // already there

		} elseif ( $stat === null ) {

			$status->fatal( 'backend-fail-internal', $this->name );

			$this->logger->error( __METHOD__ . ': cannot get container stat' );

			return $status;

		}

		// (b) Create container as needed with proper ACLs

		if ( $stat === false ) {

		// (a) Check the container

		$stat = $this->getContainerStat( $fullCont, true );

		if ( $stat === false ) {

			return $status; // ok, nothing to do

		} elseif ( !is_array( $stat ) ) {

			$status->fatal( 'backend-fail-internal', $this->name );

			$this->logger->error( __METHOD__ . ': cannot get container stat' );

			return $status;

		}

		// (b) Delete the container if empty

		if ( $stat['count'] == 0 ) {