From b3f42e62af698a67c2250533c437569559f1fdf9 Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Thu, 29 Dec 2016 07:49:51 +0900
Subject: Initial commit :four_leaf_clover:

---
 src/utils/check-dependencies.ts | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 src/utils/check-dependencies.ts

(limited to 'src/utils/check-dependencies.ts')

diff --git a/src/utils/check-dependencies.ts b/src/utils/check-dependencies.ts
new file mode 100644
index 0000000000..7bcb87a68f
--- /dev/null
+++ b/src/utils/check-dependencies.ts
@@ -0,0 +1,23 @@
+import {logInfo, logDone, logWarn} from 'log-cool';
+import {exec} from 'shelljs';
+
+export default function(): void {
+	checkDependency('Node.js', 'node -v', x => x.match(/^v(.*)\r?\n$/)[1]);
+	checkDependency('npm', 'npm -v', x => x.match(/^(.*)\r?\n$/)[1]);
+	checkDependency('MongoDB', 'mongo --version', x => x.match(/^MongoDB shell version: (.*)\r?\n$/)[1]);
+	checkDependency('Redis', 'redis-server --version', x => x.match(/v=([0-9\.]*)/)[1]);
+	logDone('Successfully checked external dependencies');
+}
+
+function checkDependency(serviceName: string, command: string, transform: (x: string) => string): void {
+	const code = {
+		success: 0,
+		notFound: 127
+	};
+	const x = exec(command, { silent: true }) as any;
+	if (x.code === code.success) {
+		logInfo(`DEPS: ${serviceName} ${transform(x.stdout)}`);
+	} else if (x.code === code.notFound) {
+		logWarn(`Unable to find ${serviceName}`);
+	}
+}
-- 
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