Setup env for es6 refactoring, refactored DescriptionFilePlugin as an example and all tests passed

Author: pllearns

Diff for: .eslintrc

@@ -1,6 +1,7 @@
 {
 	"env": {
-		"node": true
+		"node": true,
+    "es6": true
 	},
 	"plugins": [
 		"nodeca"
@@ -23,6 +24,6 @@
 		"consistent-return": 0,
 		"no-inner-declarations": 1,
 		"no-loop-func": 1,
-		"space-before-function-paren": [2, "never"] 
+		"space-before-function-paren": [2, "never"]
 	}
 }

Diff for: lib/DescriptionFilePlugin.js

@@ -1,49 +1,53 @@
+"use strict"
 /*
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-var createInnerCallback = require("./createInnerCallback");
-var assign = require("object-assign");
-var DescriptionFileUtils = require("./DescriptionFileUtils");
+const createInnerCallback = require("./createInnerCallback")
+const assign = require("object-assign")
+const DescriptionFileUtils = require("./DescriptionFileUtils")
 
-function DescriptionFilePlugin(source, filenames, target) {
-	this.source = source;
-	this.filenames = [].concat(filenames);
-	this.target = target;
-}
-module.exports = DescriptionFilePlugin;
+class DescriptionFilePlugin {
+	constructor(source, filenames, target) {
+		this.source = source
+		this.filenames = [].concat(filenames)
+		this.target = target
+	}
 
-DescriptionFilePlugin.prototype.apply = function(resolver) {
-	var filenames = this.filenames;
-	var target = this.target;
-	resolver.plugin(this.source, function(request, callback) {
-		var fs = this.fileSystem;
-		var directory = request.path;
-		DescriptionFileUtils.loadDescriptionFile(resolver, directory, filenames, function(err, result) {
-			if(err) return callback(err);
-			if(!result) {
-				if(callback.missing) {
-					filenames.forEach(function(filename) {
-						callback.missing.push(resolver.join(directory, filename));
-					})
+	apply(resolver) {
+		const filenames = this.filenames
+		const target = this.target
+		resolver.plugin(this.source, (request, callback) => {
+			const fs = this.fileSystem
+			const directory = request.path
+			DescriptionFileUtils.loadDescriptionFile(resolver, directory, filenames, ((err, result) => {
+				if(err) return callback(err)
+				if(!result) {
+					if(callback.missing) {
+						filenames.forEach((filename) => {
+							callback.missing.push(resolver.join(directory, filename))
+						})
+					}
+					if(callback.log) callback.log("No description file found")
+					return callback()
 				}
-				if(callback.log) callback.log("No description file found");
-				return callback();
-			}
-			var relativePath = "." + request.path.substr(result.directory.length).replace(/\\/g, "/");
-			var obj = assign({}, request, {
-				descriptionFilePath: result.path,
-				descriptionFileData: result.content,
-				descriptionFileRoot: result.directory,
-				relativePath: relativePath
-			});
-			resolver.doResolve(target, obj, "using description file: " + result.path + " (relative path: " + relativePath + ")", createInnerCallback(function(err, result) {
-				if(err) return callback(err);
-				if(result) return callback(null, result);
+				const relativePath = "." + request.path.substr(result.directory.length).replace(/\\/g, "/")
+				const obj = assign({}, request, {
+					descriptionFilePath: result.path,
+					descriptionFileData: result.content,
+					descriptionFileRoot: result.directory,
+					relativePath: relativePath
+				})
+				resolver.doResolve(target, obj, "using description file: " + result.path + " (relative path: " + relativePath + ")", createInnerCallback((err, result) => {
+					if(err) return callback(err)
+					if(result) return callback(null, result)
+
+					// Don't allow other description files or none at all
+					callback(null, null)
+				}, callback))
+			}))
+		})
+	}
+}
 
-				// Don't allow other description files or none at all
-				callback(null, null);
-			}, callback));
-		});
-	});
-};
+module.exports = DescriptionFilePlugin

Diff for: package.json

@@ -22,7 +22,8 @@
     "beautify-lint": "^1.0.3",
     "codecov.io": "^0.1.6",
     "coveralls": "^2.11.6",
-    "eslint": "^1.1.0",
+    "eslint": "^3.14.1",
+    "eslint-plugin-node": "^3.0.5",
     "eslint-plugin-nodeca": "^1.0.3",
     "istanbul": "^0.4.1",
     "js-beautify": "^1.5.10",