code: protected function execute(InputInterface $input, OutputInterface $output): int
      {
          $this->fs = new Filesystem();
          $this->io = new SymfonyStyle($input, $output);
  
          $webDir = $this->rootDir.'/'.rtrim($input->getArgument('target'), '/');
  
          $this->addHtaccess($webDir);
          $this->addFiles($webDir);
          $this->purgeOldFiles($webDir);
  
          return 0;
      }
docs: {@inheritdoc}