use gulp instead of grunt

.gitignore

@@ -1,2 +1 @@
 /node_modules/
-/build/

.jscsrc

@@ -0,0 +1,2 @@
+{
+}

.npmignore

@@ -1,10 +1,11 @@
 .editorconfig
 .gitignore
 .jshintrc
+.jscsrc
 .travis.yml
 bower.json
 CHANGELOG.md
-Gruntfile.js
+Gulpfile.js
 LICENSE
 README.md
 /test/

.travis.yml

@@ -1,8 +1,6 @@
 language: node_js
 
 node_js:
-  - "0.6"
-  - "0.8"
   - "0.10"
   - "0.11"
   - "0.12"
@@ -15,7 +13,4 @@ cache:
   directories:
     - node_modules
 
-before_script:
-  - npm install -g grunt-cli
-
-script: grunt test
+script: gulp ci

Gruntfile.js

@@ -1,43 +0,0 @@
-module.exports = function(grunt) {
-  // measure the time each task takes
-  require('time-grunt')(grunt);
-
-  // autoload Grunt tasks
-  require('load-grunt-tasks')(grunt);
-
-  // main project config
-  grunt.initConfig({
-    pkg: grunt.file.readJSON('package.json'),
-    uglify: {
-      dist: {
-        files: {
-          'dist/<%= pkg.name %>.min.js': 'src/<%= pkg.name %>.js'
-        }
-      }
-    },
-    jshint: {
-      options: {
-        jshintrc: true
-      },
-      files: [
-        'Gruntfile.js',
-        'src/<%= pkg.name %>.js',
-        'test/**/*.js'
-      ]
-    },
-    mochaTest: {
-      test: {
-        options: {
-          reporter: 'spec'
-        },
-        src: ['test/**/*.js']
-      }
-    }
-  });
-
-  // user defined tasks
-  grunt.registerTask('test', ['mochaTest']);
-  grunt.registerTask('lint', ['jshint']);
-  grunt.registerTask('build', ['uglify']);
-  grunt.registerTask('default', ['jshint', 'mochaTest', 'uglify']);
-};

Gulpfile.js

@@ -0,0 +1,44 @@
+var gulp = require('gulp');
+var $ = require('gulp-load-plugins')({
+  scope: 'devDependencies'
+});
+var runSequence = require('run-sequence');
+
+gulp.task('lint', function () {
+  gulp.src('src/**/*.js')
+    .pipe($.jshint('.jshintrc'))
+    .pipe($.jshint.reporter('jshint-stylish'));
+});
+
+gulp.task('cs', function () {
+  return gulp.src('src/**/*.js')
+    .pipe($.jscs());
+});
+
+gulp.task('test', function () {
+  return gulp.src('test/**/*.js', { read: false })
+    .pipe($.mocha());
+});
+
+gulp.task('minify', function () {
+  return gulp.src('src/*.js')
+    .pipe($.sourcemaps.init())
+    .pipe($.uglify())
+    .pipe($.rename({
+      extname: '.min.js'
+    }))
+    .pipe($.sourcemaps.write())
+    .pipe(gulp.dest('dist'));
+});
+
+gulp.task('build', function (callback) {
+  runSequence(
+    ['lint', 'cs', 'test'],
+    'minify',
+    callback
+  );
+});
+
+gulp.task('ci', ['lint', 'cs', 'test']);
+
+gulp.task('default', ['build']);

bower.json

@@ -11,7 +11,7 @@
   "ignore": [
     "**/.*",
     "CHANGELOG.md",
-    "Gruntfile.js",
+    "Gulpfile.js",
     "LICENSE",
     "README.md",
     "node_modules",

package.json

@@ -10,13 +10,17 @@
   "main": "timestring.js",
   "version": "1.1.0",
   "devDependencies": {
-    "chai": "^1.9.1",
-    "grunt": "^0.4.5",
-    "grunt-contrib-jshint": "^0.10.0",
-    "grunt-contrib-uglify": "^0.5.0",
-    "grunt-mocha-test": "^0.11.0",
-    "load-grunt-tasks": "^0.6.0",
-    "mocha": "^1.20.1",
-    "time-grunt": "^0.4.0"
+    "chai": "^2.3.0",
+    "gulp": "^3.8.11",
+    "gulp-jscs": "^1.6.0",
+    "gulp-jshint": "^1.10.0",
+    "gulp-load-plugins": "^0.10.0",
+    "gulp-mocha": "^2.0.1",
+    "gulp-rename": "^1.2.2",
+    "gulp-sourcemaps": "^1.5.2",
+    "gulp-uglify": "^1.2.0",
+    "jshint-stylish": "^1.0.1",
+    "mocha": "^2.2.4",
+    "run-sequence": "^1.1.0"
   }
 }