minor js fixes, update build system, minimize dependencies

.babelrc

@@ -1,3 +1,9 @@
 {
-	"stage": 0
+	"presets": [
+		"es2015"
+	],
+	"plugins": [
+		"transform-class-properties",
+		"async-to-promises"
+	]
 }

Makefile

@@ -0,0 +1,8 @@
+all: build
+
+node_modules: package.json
+	npm install
+
+.PHONY: build
+build: node_modules
+	node node_modules/.bin/babel src --out-dir lib

package.json

@@ -13,7 +13,12 @@
     "url": "https://github.com/spiretf/webrcon"
   },
   "dependencies": {
-		"bluebird": "^3.0.5",
-		"ws": "^0.8.0"
+    "ws": "^2.2.3"
+  },
+  "devDependencies": {
+    "babel-cli": "^6.24.1",
+    "babel-plugin-async-to-promises": "^1.0.5",
+    "babel-plugin-transform-class-properties": "^6.24.1",
+    "babel-preset-es2015": "^6.24.1"
   }
 }

src/command/getsvar.js

@@ -5,8 +5,8 @@ export default class GetSVar {
 	}
 
 	handler (response) {
-		var regex = '"' + this.name + '" = "([^"]*)"';
-		var matches = response.match(new RegExp(regex));
+		const regex = '"' + this.name + '" = "([^"]*)"';
+		const matches = response.match(new RegExp(regex));
 		if (matches) {
 			return matches[1];
 		} else {

src/command/status.js

@@ -2,16 +2,16 @@ export default class Status {
 	command = 'status';
 
 	handler (response) {
-		var status = {
+		const status = {
 			name: '',
 			map: '',
 			players: []
 		};
-		var playerIds = {};
-		var lines = response.split("\n");
-		for (var i = 0; i < lines.length; i++) {
+		const playerIds = {};
+		const lines = response.split("\n");
+		for (let i = 0; i < lines.length; i++) {
 			let parts;
-			var line = lines[i].trim();
+			const line = lines[i].trim();
 			if (line[0] !== '#' && line.indexOf(':')) {
 				parts = line.split(':');
 				parts = parts.map((part) => {
@@ -23,23 +23,23 @@ export default class Status {
 					status.map = parts[1].substr(0, parts[1].indexOf(' '));
 				}
 			} else if (line[0] === '#' && line.substr(0, 8) !== '# userid') {
-				var playerLine = line.substr(2).trim();
+				const playerLine = line.substr(2).trim();
 				parts = playerLine.split('"');
 				parts = parts.map((part) => {
 					return part.trim()
 				});
-				var id = parseInt(parts[0], 10);
+				const id = parseInt(parts[0], 10);
 				if (playerIds[id]) {
 					continue;
 				}
 				playerIds[id] = true;
-				var name = parts[1];
+				const name = parts[1];
 				if (!parts[2]) {
 					return;
 				}
 				parts = parts[2].replace(/\s+/g, ' ').split(' ');
-				var steamId = parts[0];
-				var player = {
+				const steamId = parts[0];
+				const player = {
 					id: id,
 					name: name,
 					steamId: steamId
@@ -47,7 +47,7 @@ export default class Status {
 				if (parts.length > 2 && steamId !== 'BOT') {
 					player.ping = parseInt(parts[2], 10);
 					player.ip = parts[5];
-					var timeParts = parts[1].split(':');
+					const timeParts = parts[1].split(':');
 					if (timeParts.length === 2) {
 						player.connected = parseInt(timeParts[0], 10) * 60 + parseInt(timeParts[1], 10);
 					} else {

src/connection.js

@@ -1,4 +1,3 @@
-import Promise from 'bluebird';
 import WebRcon from './webrcon.js';
 
 export default class Connection {
@@ -36,11 +35,11 @@ export default class Connection {
 			this.receivedBuffer += response;
 			// buffer the response
 			this.receivedTimer = setTimeout(() => {
-				var response = this.receivedBuffer;
+				const response = this.receivedBuffer;
 				this.receivedBuffer = '';
 				if (this.messageHandlers.length) {
 					while (this.messageHandlers.length > 0) {
-						var handler = this.messageHandlers.shift();
+						const handler = this.messageHandlers.shift();
 						handler(response);
 					}
 				} else {
@@ -50,14 +49,13 @@ export default class Connection {
 			}, 100);
 		});
 		this.rcon.on('error', (e) => {
-			if (e == 'not authenticated') {
+			if (e === 'not authenticated') {
 				for (let listener of this.errorListeners) {
 					listener(e);
 				}
 				return;
 			}
 			this.errorCount++;
-			console.log('failed to connect ' + this.errorCount + ' times (' + e + ')');
 			Promise.delay(2500).then(() => {
 				if (this.connectPromise) {
 					this.rcon.connect();
@@ -90,7 +88,7 @@ export default class Connection {
 		await this.waitFor(() => {
 			return this.messageHandlers.length === 0;
 		}, 500);
-		var promise = new Promise((resolve) => {
+		const promise = new Promise((resolve) => {
 			this.messageHandlers.push(resolve);
 		});
 		this.rcon.send(command);
@@ -98,7 +96,7 @@ export default class Connection {
 	}
 
 	async send (command) {
-		var response = await this.sendString(command.command);
+		const response = await this.sendString(command.command);
 		return command.handler(response);
 	}
 
@@ -107,14 +105,22 @@ export default class Connection {
 	}
 
 	async waitFor (cb, timeout) {
-		var waited = 0;
+		let waited = 0;
 		while (waited < timeout) {
 			if (cb()) {
 				return true;
 			}
-			await Promise.delay(250);
+			await this.delay(250);
 			waited += 250;
 		}
 		return false;
 	}
+
+	delay (delay) {
+		return new Promise(function (resolve) {
+			setTimeout(function () {
+				resolve()
+			}, delay)
+		})
+	}
 }

src/webrcon.js

@@ -24,7 +24,7 @@ export default class WebRcon extends EventEmitter {
 				this.connected = true;
 				this.emit('connect');
 				setTimeout(() => {
-					for (var message of this.queue) {
+					for (let message of this.queue) {
 						this.socket.send(message);
 					}
 					this.queue = [];