setName('check') ->setDescription('check dependencies of the server environment') ; } protected function execute(InputInterface $input, OutputInterface $output): int { $errors = \OC_Util::checkServer($this->config); if (!empty($errors)) { $errors = array_map(function ($item) { return (string) $item['error']; }, $errors); $this->writeArrayInOutputFormat($input, $output, $errors); return 1; } return 0; } }