protected function configure()
{
parent::configure();
$this->setName('encryption:decrypt-all');
$this->setDescription('This will disable server-side encryption and decrypt all files for ' . 'all users if it is supported by your encryption module. ' . 'Please make sure that no user access his files during this process!');
$this->addArgument('user', InputArgument::OPTIONAL, 'user for which you want to decrypt all files (optional)');
}