refactor: es6-fy

index.js

@@ -1,7 +1,7 @@
 /* global hexo */
 'use strict';
 
-var renderer = require('./lib/renderer');
+const renderer = require('./lib/renderer');
 
 hexo.extend.renderer.register('styl', 'css', renderer);
 hexo.extend.renderer.register('stylus', 'css', renderer);

lib/renderer.js

@@ -1,22 +1,23 @@
 'use strict';
 
-var stylus, nib;
+const stylus = require('stylus');
+const nib = require('nib');
 
 function getProperty(obj, name) {
   name = name.replace(/\[(\w+)\]/g, '.$1').replace(/^\./, '');
 
-  var split = name.split('.');
-  var key = split.shift();
+  const split = name.split('.');
+  let key = split.shift();
 
   if (!obj.hasOwnProperty(key)) return '';
 
-  var result = obj[key];
-  var len = split.length;
+  let result = obj[key];
+  const len = split.length;
 
   if (!len) return result || '';
   if (typeof result !== 'object') return '';
 
-  for (var i = 0; i < len; i++) {
+  for (let i = 0; i < len; i++) {
     key = split[i];
     if (!result.hasOwnProperty(key)) return '';
 
@@ -28,14 +29,8 @@ function getProperty(obj, name) {
 }
 
 module.exports = function(data, options, callback) {
-  // Lazy require
-  if (!stylus) {
-    stylus = require('stylus');
-    nib = require('nib');
-  }
-
-  var config = this.config.stylus || {};
-  var self = this;
+  const config = this.config.stylus || {};
+  const self = this;
 
   function defineConfig(style) {
     style.define('hexo-config', function(data) {

test/index.js

@@ -1,9 +1,9 @@
 'use strict';
 
-var should = require('chai').should(); // eslint-disable-line
+const should = require('chai').should(); // eslint-disable-line
 
-describe('Stylus renderer', function() {
-  var ctx = {
+describe('Stylus renderer', () => {
+  const ctx = {
     config: {
       stylus: {
         compress: false
@@ -23,17 +23,17 @@ describe('Stylus renderer', function() {
     }
   };
 
-  var r = require('../lib/renderer').bind(ctx);
+  const r = require('../lib/renderer').bind(ctx);
 
-  it('no config', function() {
-    var body = [
+  it('no config', () => {
+    const body = [
       '.foo',
       '  color: red'
     ].join('\n');
-    var config = ctx.config.stylus;
+    const config = ctx.config.stylus;
 
     ctx.config.stylus = null;
-    r({text: body}, {}, function(err, result) {
+    r({text: body}, {}, (err, result) => {
       if (err) throw err;
 
       ctx.config.stylus = config;
@@ -45,13 +45,13 @@ describe('Stylus renderer', function() {
     });
   });
 
-  it('default', function() {
-    var body = [
+  it('default', () => {
+    const body = [
       '.foo',
       '  color: red'
     ].join('\n');
 
-    r({text: body}, {}, function(err, result) {
+    r({text: body}, {}, (err, result) => {
       if (err) throw err;
 
       result.should.eql([
@@ -62,24 +62,24 @@ describe('Stylus renderer', function() {
     });
   });
 
-  it('compress', function() {
+  it('compress', () => {
     ctx.config.stylus.compress = true;
 
-    var body = [
+    const body = [
       '.foo',
       '  color: red'
     ].join('\n');
 
-    r({text: body}, {}, function(err, result) {
+    r({text: body}, {}, (err, result) => {
       if (err) throw err;
 
       ctx.config.stylus.compress = false;
       result.should.eql('.foo{color:#f00}');
     });
   });
 
-  it('hexo-config', function() {
-    var body = [
+  it('hexo-config', () => {
+    const body = [
       // first depth and exist
       '.foo',
       '  content: hexo-config("foo")',
@@ -114,7 +114,7 @@ describe('Stylus renderer', function() {
       '    content: i'
     ].join('\n');
 
-    r({text: body}, {}, function(err, result) {
+    r({text: body}, {}, (err, result) => {
       if (err) throw err;
 
       result.should.eql([