/**
  * Check if all module files exists in shop.
  *
  * @param oxModule $oModule module object
  *
  * @return bool
  */
 private function _moduleFilesInformationExistInShop(\OxidEsales\EshopCommunity\Core\Module $oModule)
 {
     $aModuleFiles = $oModule->getFiles();
     /** @var oxModuleList $oModuleList */
     $oModuleList = oxNew('oxModuleList');
     $aShopInformationAboutModulesFiles = $oModuleList->getModuleFiles();
     $aMissingFiles = array_diff($aModuleFiles, $aShopInformationAboutModulesFiles);
     return count($aMissingFiles) === 0;
 }