Rewrite to ES6

.eslintrc.json

@@ -1,54 +1,61 @@
 {
   "extends": "eslint:recommended",
+  "ecmaVersion": 2015,
   "env": {
+    "es6": true,
     "mocha": true,
     "node": true
   },
   "rules": {
-    "array-bracket-spacing": 2,
-    "brace-style": 2,
-    "camelcase": 2,
-    "comma-dangle": 0,
-    "comma-spacing": 2,
-    "comma-style": 2,
-    "computed-property-spacing": 2,
-    "curly": 2,
-    "dot-location": [2, "property"],
-    "dot-notation": 2,
-    "eol-last": 2,
-    "eqeqeq": 2,
-    "guard-for-in": 2,
-    "indent": [2, 4, {
+    "array-bracket-spacing": "error",
+    "arrow-body-style": ["error", "always"],
+    "arrow-parens": "error",
+    "brace-style": "error",
+    "camelcase": "error",
+    "comma-dangle": "off",
+    "comma-spacing": "error",
+    "comma-style": "error",
+    "computed-property-spacing": "error",
+    "curly": "error",
+    "dot-location": ["error", "property"],
+    "dot-notation": "error",
+    "eol-last": "error",
+    "eqeqeq": "error",
+    "guard-for-in": "error",
+    "indent": ["error", 4, {
         "SwitchCase": 1,
         "VariableDeclarator": 0
     }],
-    "key-spacing": 2,
-    "keyword-spacing": [2, {
+    "key-spacing": "error",
+    "keyword-spacing": ["error", {
         "after": true,
         "before": true
     }],
-    "newline-after-var": 2,
-    "no-caller": 2,
-    "no-console": 0,
-    "no-else-return": 2,
-    "no-eval": 2,
-    "no-extend-native": 2,
-    "no-lonely-if": 2,
-    "no-loop-func": 2,
-    "no-multi-spaces": 2,
-    "no-trailing-spaces": 2,
-    "one-var": [2, "never"],
-    "quotes": [2, "single", "avoid-escape"],
-    "semi": 2,
-    "space-before-blocks": 2,
-    "space-before-function-paren": 2,
-    "space-in-parens": 2,
-    "space-unary-ops": [2, {
+    "no-bitwise": "error",
+    "no-caller": "error",
+    "no-console": "off",
+    "no-const-assign": "error",
+    "no-else-return": "error",
+    "no-eval": "error",
+    "no-extend-native": "error",
+    "no-lonely-if": "error",
+    "no-loop-func": "error",
+    "no-multi-spaces": "error",
+    "no-trailing-spaces": "error",
+    "no-var": "error",
+    "prefer-const": "error",
+    "quotes": ["error", "single", "avoid-escape"],
+    "semi": "error",
+    "space-before-blocks": "error",
+    "space-before-function-paren": "error",
+    "space-in-parens": "error",
+    "space-infix-ops": "error",
+    "space-unary-ops": ["error", {
         "nonwords": false,
         "words": true
     }],
-    "strict": [2, "global"],
-    "vars-on-top": 2,
-    "yoda": 2
+    "strict": ["error", "global"],
+    "template-curly-spacing": ["error", "always"],
+    "yoda": "error"
   }
 }

.gitignore

@@ -1,3 +1,4 @@
 .DS_Store
+coverage
 node_modules
 npm-debug.log

.travis.yml

@@ -1,18 +1,14 @@
-sudo: false
-
 language: node_js
 node_js:
-  - "0.10"
-  - "0.12"
-  - "iojs-v1"
-  - "iojs-v2"
-  - "iojs-v3"
   - "4"
   - "5"
+  - "6"
+  - "7"
 
 before_script:
   - node --version
   - npm --version
+  - npm install -g gulp
 
 script:
   - npm test

gulpfile.js

@@ -0,0 +1,19 @@
+'use strict';
+
+const gulp = require('gulp');
+const eslint = require('gulp-eslint');
+const mocha = require('gulp-mocha');
+
+gulp.task('lint', () => {
+    return gulp.src(['./*.js'])
+        .pipe(eslint())
+        .pipe(eslint.format())
+        .pipe(eslint.failAfterError());
+});
+
+gulp.task('test', ['lint'], () => {
+    return gulp.src(['./test.js'])
+        .pipe(mocha());
+});
+
+gulp.task('default', ['test']);

index.js

@@ -1,15 +1,15 @@
 'use strict';
 
-var util = require('util');
+const util = require('util');
 
 module.exports = {
-    report: function (errors) {
-        var lastFile = '';
+    report: function report (results) {
+        let lastFile = '';
 
         console.log('##teamcity[testSuiteStarted name=\'lesshint\']');
 
-        errors.forEach(function (err) {
-            var errFile = err.fullPath.replace('./', '');
+        results.forEach((result) => {
+            const errFile = result.fullPath.replace(process.env.PWD + '/', '');
 
             if (lastFile !== errFile) {
                 if (lastFile) {
@@ -24,16 +24,16 @@ module.exports = {
                 util.format(
                     '##teamcity[testFailed name=\'%s\' message=\'line %d, col %d, %s (%s) %s\']',
                     lastFile,
-                    err.line,
-                    err.column,
-                    err.severity === 'error' ? 'Error' : 'Warning',
-                    err.linter,
-                    err.message.replace('\'', '|\'')
+                    result.line,
+                    result.column,
+                    result.severity === 'error' ? 'Error' : 'Warning',
+                    result.linter,
+                    result.message.replace('\'', '|\'')
                 )
             );
         });
 
-        if (errors.length) {
+        if (results.length) {
             console.log(util.format('##teamcity[testFinished name=\'%s\']', lastFile));
         } else {
             console.log('##teamcity[testStarted name=\'lesshint\']');

package.json

@@ -1,30 +1,30 @@
 {
   "name": "lesshint-reporter-teamcity",
-  "version": "1.0.3",
+  "version": "1.1.0",
   "description": "TeamCity reporter for lesshint.",
   "main": "index.js",
   "repository": {
     "type": "git",
-    "url": "https://github.com/lesshint/reporter-teamcity"
+    "url": "git+https://github.com/lesshint/reporter-teamcity.git"
   },
   "keywords": [
     "reporter",
     "lesshint",
     "teamcity"
   ],
+  "devDependencies": {
+    "chai": "^3.5.0",
+    "gulp": "^3.9.0",
+    "gulp-eslint": "^3.0.1",
+    "gulp-mocha": "^4.1.0",
+    "proxyquire": "^1.7.10",
+    "sinon": "^2.0.0"
+  },
   "scripts": {
-    "pretest": "eslint *.js",
-    "test": "mocha"
+    "test": "gulp"
   },
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/lesshint/reporter-teamcity/issues"
-  },
-  "devDependencies": {
-    "chai": "^3.5.0",
-    "eslint": "^2.2.0",
-    "mocha": "^2.4.5",
-    "rewire": "^2.5.1",
-    "sinon": "^1.17.3"
   }
 }

test.js

@@ -1,25 +1,25 @@
 'use strict';
 
-var expect = require('chai').expect;
-var rewire = require('rewire');
-var sinon = require('sinon');
-var util = require('util');
+const proxyquire = require('proxyquire');
+const expect = require('chai').expect;
+const sinon = require('sinon');
+const util = require('util');
 
-describe('reporter:teamcity', function () {
-    var reporter = rewire('./index.js');
+const reporter = proxyquire('./index', {util: util});
 
-    beforeEach(function () {
+describe('reporter:teamcity', () => {
+    beforeEach(() => {
         sinon.stub(process.stdout, 'write');
     });
 
-    afterEach(function () {
+    afterEach(() => {
         if (process.stdout.write.restore) {
             process.stdout.write.restore();
         }
     });
 
-    it('should not print anything when not passed any errors', function () {
-        var errors = [];
+    it('should not print anything when not passed any errors', () => {
+        const errors = [];
 
         sinon.spy(console, 'log');
 
@@ -34,8 +34,8 @@ describe('reporter:teamcity', function () {
         console.log.restore();
     });
 
-    it('print error for 1 file', function () {
-        var errors = [{
+    it('print error for 1 file', () => {
+        const errors = [{
             column: 5,
             file: 'file.less',
             fullPath: 'path/to/file.less',
@@ -62,8 +62,8 @@ describe('reporter:teamcity', function () {
         console.log.restore();
     });
 
-    it('print errors for 2 files', function () {
-        var errors = [{
+    it('print errors for 2 files', () => {
+        const errors = [{
             column: 5,
             file: 'file.less',
             fullPath: 'path/to/file.less',