From 03852c684059271eac015af9fb0dac2b2e878f6e Mon Sep 17 00:00:00 2001
From: Aya Morisawa <AyaMorisawa4869@gmail.com>
Date: Sat, 31 Dec 2016 03:09:31 +0900
Subject: [PATCH] :sparkles:

---
 src/index.ts                   |  4 ++--
 src/utils/checkDependencies.ts | 29 -----------------------------
 2 files changed, 2 insertions(+), 31 deletions(-)
 delete mode 100644 src/utils/checkDependencies.ts

diff --git a/src/index.ts b/src/index.ts
index ff4a01c83..b9c628268 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -18,7 +18,7 @@ const portUsed = require('tcp-port-used');
 const isRoot = require('is-root');
 import ProgressBar from './utils/cli/progressbar';
 import initdb from './db/mongodb';
-import checkDependencies from './utils/checkDependencies';
+import DependencyChecker from './utils/dependencyChecker';
 
 // Init babel
 require('babel-core/register');
@@ -175,7 +175,7 @@ async function init(): Promise<State> {
 	configLogger.info('Successfully loaded');
 	configLogger.info(`maintainer: ${config.maintainer}`);
 
-	checkDependencies();
+	new DependencyChecker().checkAll();
 
 	if (process.platform === 'linux' && !isRoot() && config.port < 1024) {
 		Logger.error('You need root privileges to listen on port below 1024 on Linux');
diff --git a/src/utils/checkDependencies.ts b/src/utils/checkDependencies.ts
deleted file mode 100644
index 01c0b5053..000000000
--- a/src/utils/checkDependencies.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-import Logger from './logger';
-import { exec } from 'shelljs';
-
-export default function(): void {
-	checkDependency('Node.js', 'node -v', x => x.match(/^v(.*)\r?\n$/));
-	checkDependency('npm', 'npm -v', x => x.match(/^(.*)\r?\n$/));
-	checkDependency('MongoDB', 'mongo --version', x => x.match(/^MongoDB shell version: (.*)\r?\n$/));
-	checkDependency('Redis', 'redis-server --version', x => x.match(/v=([0-9\.]*)/));
-}
-
-function checkDependency(serviceName: string, command: string, transform: (x: string) => RegExpMatchArray): void {
-	const code = {
-		success: 0,
-		notFound: 127
-	};
-	let logger = new Logger('Deps');
-	const x = exec(command, { silent: true }) as any;
-	if (x.code === code.success) {
-		let ver = transform(x.stdout);
-		if (ver != null) {
-			logger.info(`${serviceName} ${ver[1]} found`);
-		} else {
-			logger.warn(`${serviceName} not found`);
-			logger.warn(`Regexp used for version check of ${serviceName} is probably messed up`);
-		}
-	} else if (x.code === code.notFound) {
-		logger.warn(`${serviceName} not found`);
-	}
-}