Fix bug

1 files changed, 13 insertions, 7 deletions

diff --git a/src/utils/check-dependencies.ts b/src/utils/check-dependencies.ts
index 2378041e27..2b19543915 100644
--- a/src/utils/check-dependencies.ts
+++ b/src/utils/check-dependencies.ts
@@ -2,21 +2,27 @@ import Logger from './logger';
 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$/)[1]);
-	checkDependency('Redis', 'redis-server --version', x => x.match(/v=([0-9\.]*)/)[1]);
+	checkDependency('Node.js', 'node -v', x => x.match(/^v(.*)\r?\n$/));
+	checkDependency('npm', 'npm -v', x => x.match(/^(.*)\r?\n$/));
+	checkDependency('MongoDB', 'mongo --version', x => x.match(/^MongoDDB shell version: (.*)\r?\n$/));
+	checkDependency('Redis', 'redis-server --version', x => x.match(/v=([0-9\.]*)/));
 }
 
-function checkDependency(serviceName: string, command: string, transform: (x: string) => string): void {
+function checkDependency(serviceName: string, command: string, transform: (x: string) => RegExpMatchArray): void {
 	const code = {
 		success: 0,
 		notFound: 127
 	};
-	const x = exec(command, { silent: true }) as any;
 	let depsLogger = new Logger('Deps');
+	const x = exec(command, { silent: true }) as any;
 	if (x.code === code.success) {
-		depsLogger.info(`${serviceName} ${transform(x.stdout)} found`);
+		let ver = transform(x.stdout);
+		if (ver != null) {
+			depsLogger.info(`${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`);
 	}