Add coverage via coveralls.io

Author: jorrit

.gitignore

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

.travis.yml

@@ -3,3 +3,4 @@ node_js:
   - 4
   - 6
   - 7
+script: npm run lint && npm run test-coveralls

README.md

@@ -3,6 +3,7 @@
 [![gulp-requirejs on npm](https://img.shields.io/npm/v/gulp-requirejs.svg?style=flat)](https://www.npmjs.com/package/gulp-requirejs)
 [![Dependency Status](https://david-dm.org/jorrit/gulp-requirejs.png)](https://david-dm.org/jorrit/gulp-requirejs)
 [![Build Status](https://travis-ci.org/jorrit/gulp-requirejs.png?branch=master)](https://travis-ci.org/jorrit/gulp-requirejs)
+[![Coverage](https://coveralls.io/repos/github/jorrit/gulp-requirejs/badge.svg)](https://coveralls.io/github/jorrit/gulp-requirejs)
 
 ## Information
 

package.json

@@ -14,8 +14,11 @@
     "requirejs": "^2.3.2"
   },
   "devDependencies": {
+    "coveralls": "^2.11.16",
     "eslint": "^3.15.0",
+    "istanbul": "^0.4.5",
     "mocha": "^3.2.0",
+    "mocha-lcov-reporter": "^1.2.0",
     "should": "^11.2.0"
   },
   "engines": {
@@ -36,6 +39,7 @@
   "scripts": {
     "lint": "eslint .",
     "pretest": "npm run lint",
-    "test": "mocha"
+    "test": "mocha",
+    "test-coveralls": "istanbul cover ./node_modules/mocha/bin/_mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage"
   }
 }