public function allSites() {
    $multisites = $this->getConfigValue('multisites');
    $this->printSyncMap($multisites);
    $continue = $this->confirm("Continue?", TRUE);
    if (!$continue) {
      return 0;
    }
    foreach ($multisites as $multisite) {
      $this->say("Refreshing site <comment>$multisite</comment>...");
      $this->switchSiteContext($multisite);
      $this->sync();
    }
  }