Convert to ES6. (#5)

* Convert to ES6.

* Upgrade node version.

* Bump version.

.babelrc

@@ -0,0 +1,3 @@
+{
+  "presets": ["es2015"]
+}

.eslintrc.json

@@ -0,0 +1,29 @@
+{
+  "env": {
+    "browser": true,
+    "commonjs": true,
+    "es6": true
+  },
+  "extends": "eslint:recommended",
+  "parserOptions": {
+    "sourceType": "module"
+  },
+  "rules": {
+    "indent": [
+      "error",
+      2
+    ],
+    "linebreak-style": [
+      "error",
+      "unix"
+    ],
+    "quotes": [
+      "error",
+      "single"
+    ],
+    "semi": [
+      "error",
+      "always"
+    ]
+  }
+}

.gitignore

@@ -1,3 +1,4 @@
-node_modules
 actual-output
-coverage
+/coverage
+/lib
+/node_modules

README.md

@@ -29,17 +29,17 @@ Add to your webpack config -- see below for examples. The plugin signature is:
 ### webpack.config.js
 
 ```js
-var SitemapPlugin = require('sitemap-webpack-plugin');
+import SitemapPlugin from 'sitemap-webpack-plugin';
 
 /* basic paths -- directly compatible with static-site-generator-webpack-plugin */
-var paths = [
+const paths = [
   '/foo/',
   '/bar/'
 ];
 
 /* object paths -- more fine-grained but not directly compatible with static-site-generator-webpack-plugin */
 /* object paths must have a `path` attribute -- others are optional, and fall back to global config (if any) */
-var paths = [
+const paths = [
   {
     path: '/foo/',
     lastMod: '2015-01-04',
@@ -49,9 +49,9 @@ var paths = [
 ];
 
 /* you can also convert object paths back into static-site-generator-webpack-plugin compatible paths */
-var staticSiteGeneratorCompatiblePaths = paths.map(function(path) { return path.path });
+const staticSiteGeneratorCompatiblePaths = paths.map(function(path) { return path.path });
 
-module.exports = {
+export default {
 
   /* snip */
 

circle.yml

@@ -1,3 +1,7 @@
+machine:
+  node:
+    version: 8.1.4
+
 test:
   override:
     - npm test

package.json

@@ -1,15 +1,14 @@
 {
   "name": "sitemap-webpack-plugin",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "Webpack plugin to generate a sitemap.",
-  "main": "index.js",
+  "main": "lib/index.js",
   "scripts": {
-    "test": "istanbul cover _mocha test -- --timeout 20000",
+    "build": "babel src --out-dir lib",
+    "prepublish": "npm run build",
+    "test": "istanbul cover _mocha -- --compilers js:babel-core/register",
     "coveralls": "cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage",
-    "lint": "jshint ./**/*.js"
-  },
-  "jshintConfig": {
-    "expr": true
+    "lint": "eslint src/*.js 'test/**/*.js'"
   },
   "repository": {
     "type": "git",
@@ -26,14 +25,23 @@
   "bugs": {
     "url": "https://github.com/schneidmaster/sitemap-webpack-plugin/issues"
   },
+  "files": [
+    "lib/",
+    "src/",
+    "LICENSE.txt",
+    "package.json",
+    "README.md"
+  ],
   "homepage": "https://github.com/schneidmaster/sitemap-webpack-plugin#readme",
   "devDependencies": {
     "async": "^2.1.4",
+    "babel-cli": "^6.24.1",
+    "babel-preset-es2015": "^6.24.1",
     "chai": "^3.5.0",
     "coveralls": "^2.11.15",
+    "eslint": "^4.2.0",
     "glob": "^7.1.1",
-    "istanbul": "^0.4.5",
-    "jshint": "^2.9.4",
+    "istanbul": "^1.0.0-alpha.2",
     "mocha": "^3.2.0",
     "rimraf": "^2.5.4",
     "timecop": "git+https://github.com/jamesarosen/Timecop.js.git",

src/date.js

@@ -0,0 +1,7 @@
+export default () => {
+  const dateOptions = { day: '2-digit', month: '2-digit', year: 'numeric' };
+  const date = new Date().toLocaleDateString([], dateOptions).split('/');
+  const year = date.splice(-1)[0];
+  date.splice(0, 0, year);
+  return date.join('-');
+};