public function preAutoloadDumpEvent(Script\Event $event)
 {
     if ($event->isPropagationStopped()) {
         return;
     }
     $references = array();
     // find current package reference
     $localPackageReference = $this->determineLocalPackageReference();
     if ($localPackageReference !== null) {
         $references[$event->getComposer()->getPackage()->getName()] = $localPackageReference;
     }
     // enumerate local repository packages
     foreach ($event->getComposer()->getRepositoryManager()->getLocalRepository()->getCanonicalPackages() as $package) {
         if ($package->getSourceReference() !== null) {
             $references[$package->getName()] = $package->getSourceReference();
         } else {
             if ($package->getDistReference() !== null) {
                 $references[$package->getName()] = $package->getDistReference();
             }
         }
     }
     $destination = $event->getComposer()->getConfig()->get('vendor-dir') . DIRECTORY_SEPARATOR . 'mcuelenaere' . DIRECTORY_SEPARATOR . 'composer-revision-plugin' . DIRECTORY_SEPARATOR . 'gen' . DIRECTORY_SEPARATOR . 'revisions.php';
     $classGenerator = new ReferenceClassGenerator($event->getComposer()->getConfig());
     $classGenerator->generate($destination, $references);
 }