Refactorng

1 files changed, 33 insertions, 0 deletions

diff --git a/src/misc/dependencyInfo.ts b/src/misc/dependencyInfo.ts
new file mode 100644
index 0000000000..89af0d20fb
--- /dev/null
+++ b/src/misc/dependencyInfo.ts
@@ -0,0 +1,33 @@
+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`);
+		}
+	}
+}