import Logger from './logger'; import { execSync } from 'child_process'; export default class { private logger: Logger; constructor() { this.logger = new Logger('Deps'); } public showAll(): void { this.show('MongoDB', 'mongo --version', x => x.match(/^MongoDB shell version:? (.*)\r?\n/)); this.show('Redis', 'redis-server --version', x => x.match(/v=([0-9\.]*)/)); this.show('ImageMagick', 'magick -version', x => x.match(/^Version: ImageMagick (.+?)\r?\n/)); } public show(serviceName: string, command: string, transform: (x: string) => RegExpMatchArray): void { try { // ステータス0以外のときにexecSyncはstderrをコンソール上に出力してしまうので // プロセスからのstderrをすべて無視するように stdio オプションをセット const x = execSync(command, { stdio: ['pipe', 'pipe', 'ignore'] }); const ver = transform(x.toString()); if (ver != null) { this.logger.info(`${serviceName} ${ver[1]} found`); } else { this.logger.warn(`${serviceName} not found`); this.logger.warn(`Regexp used for version check of ${serviceName} is probably messed up`); } } catch (e) { this.logger.warn(`${serviceName} not found`); } } }