public function validateSettingsFileIsValid(CommandData $commandData) {
    if (!$this->getInspector()->isDrupalSettingsFilePresent()) {
      throw new BltException("Could not find settings.php for this site.");
    }

    if (!$this->getInspector()->isDrupalSettingsFileValid()) {
      throw new BltException("BLT settings are not included in settings file.");
    }
  }