humanmade / backupwordpress

	 *

	 * @return \WP_Error|null

	 */

	public function set_root( $path ) {

		if ( empty( $path ) || ! is_string( $path ) || ! is_dir( $path ) ) {

			return new \WP_Error( 'invalid_directory_path', sprintf( __( 'Invalid root path <code>%s</code> must be a valid directory path', 'backupwordpress' ), $path ) );

		}

		$this->root = wp_normalize_path( $path );

	}

	/**

	 * Get the filepath for the existing archive

	 *

	 * @return null

	 */

	public function set_existing_archive_filepath( $existing_archive_filepath ) {

		if ( empty( $existing_archive_filepath ) || ! is_string( $existing_archive_filepath ) ) {

			return new \WP_Error( 'invalid_existing_archive_filepath', sprintf( __( 'Invalid existing archive filepath <code>%s</code> must be a non-empty (string)', 'backupwordpress' ), $existing_archive_filepath ) );

		}

		$this->existing_archive_filepath = wp_normalize_path( $existing_archive_filepath );

	}

	/**

	 * Get the archive method that was used for the backup