/**
  * @param integer $daysOld
  * @return void
  */
 public function deleteOldCommand($daysOld)
 {
     $deployments = $this->deploymentRepository->findByDaysOld($daysOld);
     if (count($deployments) > 0) {
         foreach ($deployments as $deployment) {
             $this->deploymentRepository->remove($deployment);
             $this->outputLine('deployment removed');
         }
     } else {
         $this->outputLine('no deployments found');
     }
 }