Use lowerCamelCase for file name

1 files changed, 29 insertions, 0 deletions

diff --git a/src/utils/checkDependencies.ts b/src/utils/checkDependencies.ts
new file mode 100644
index 0000000000..af2b5fb6bf
--- /dev/null
+++ b/src/utils/checkDependencies.ts
@@ -0,0 +1,29 @@
+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$/));
+	checkDependency('Redis', 'redis-server --version', x => x.match(/v=([0-9\.]*)/));
+}
+
+function checkDependency(serviceName: string, command: string, transform: (x: string) => RegExpMatchArray): void {
+	const code = {
+		success: 0,
+		notFound: 127
+	};
+	let depsLogger = new Logger('Deps');
+	const x = exec(command, { silent: true }) as any;
+	if (x.code === code.success) {
+		let ver = transform(x.stdout);
+		if (ver != null) {
+			depsLogger.info(`${serviceName} ${ver[1]} found`);
+		} else {
+			depsLogger.warn(`${serviceName} not found`);
+			depsLogger.warn(`Regexp used for version check of ${serviceName} is probably messed up`);
+		}
+	} else if (x.code === code.notFound) {
+		depsLogger.warn(`${serviceName} not found`);
+	}
+}