Use grunt-wp-assets

.gitignore

@@ -6,4 +6,4 @@ assets/css/main.css.map
 assets/css/*main*.css
 assets/js/*scripts*.js
 assets/js/vendor/modernizr.min.js
-assets-manifest.json
+assets/manifest.json

Gruntfile.js

@@ -105,15 +105,19 @@ module.exports = function(grunt) {
         parseFiles: true
       }
     },
-    filerev: {
-      assets: {
-        src: ['assets/css/main.min.css', 'assets/js/scripts.min.js']
-      }
-    },
-    filerev_assets: {
-      assets: {
+    version: {
+      default: {
         options: {
-          dest: 'assets-manifest.json'
+          format: true,
+          length: 32,
+          manifest: 'assets/manifest.json',
+          querystring: {
+            style: 'roots_css',
+            script: 'roots_js'
+          }
+        },
+        files: {
+          'lib/scripts.php': 'assets/{css,js}/{main,scripts}.min.{css,js}'
         }
       }
     },
@@ -144,12 +148,6 @@ module.exports = function(grunt) {
           '*.php'
         ]
       }
-    },
-    clean: {
-      dist: [
-        'assets/css/main.min.*.css',
-        'assets/js/scripts.min.*.js'
-      ]
     }
   });
 
@@ -165,12 +163,10 @@ module.exports = function(grunt) {
   ]);
   grunt.registerTask('build', [
     'jshint',
-    'clean',
     'less:build',
     'autoprefixer:build',
     'uglify',
     'modernizr',
-    'filerev',
-    'filerev_assets'
+    'version'
   ]);
 };

lib/scripts.php

@@ -20,11 +20,11 @@ function roots_scripts() {
    * Read the asset names from assets-manifest.json
    */
   if (!(WP_ENV === 'development')) {
-    $get_assets = file_get_contents(get_template_directory_uri() . '/assets-manifest.json');
+    $get_assets = file_get_contents(get_template_directory_uri() . '/assets/manifest.json');
     $assets     = json_decode($get_assets, true);
     $assets     = array(
-      'css'       => '/' . $assets['assets/css/main.min.css'],
-      'js'        => '/' . $assets['assets/js/scripts.min.js'],
+      'css'       => '/assets/css/main.min.css' . '?' . $assets['assets/css/main.min.css']['hash'],
+      'js'        => '/assets/js/scripts.min.js' . '?' . $assets['assets/js/scripts.min.js']['hash'],
       'modernizr' => '/assets/js/vendor/modernizr.min.js',
       'jquery'    => '//ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js'
     );

package.json

@@ -26,15 +26,13 @@
     "bower": "~1.2.8",
     "grunt": "~0.4.2",
     "grunt-autoprefixer": "~0.7.2",
-    "grunt-filerev": "~0.2.1",
-    "grunt-filerev-assets": "~0.3.0",
-    "grunt-contrib-clean": "~0.5.0",
     "grunt-contrib-concat": "~0.3.0",
     "grunt-contrib-jshint": "~0.6.4",
     "grunt-contrib-less": "~0.8.1",
     "grunt-contrib-uglify": "~0.2.4",
     "grunt-contrib-watch": "~0.5.3",
     "grunt-modernizr": "~0.5.1",
+    "grunt-wp-assets": "git://github.com/roots/grunt-wp-assets.git#master",
     "load-grunt-tasks": "~0.3.0",
     "time-grunt": "~0.3.1"
   }