Asset improvements (gulp)

Ref roots#1149 & https://github.com/roots/roots/blob/assets-improvements/lib/assets.php

.gitignore

@@ -1,6 +1,5 @@
 # Include your project-specific ignores in this file
 # Read about how to use .gitignore: https://help.github.com/articles/ignoring-files
 assets/dist
-assets/rev-manifest.json
 bower_components
 node_modules

functions.php

@@ -15,11 +15,11 @@
   'lib/wrapper.php',         // Theme wrapper class
   'lib/sidebar.php',         // Sidebar class
   'lib/config.php',          // Configuration
+  'lib/assets.php',          // Scripts and stylesheets
   'lib/activation.php',      // Theme activation
   'lib/titles.php',          // Page titles
   'lib/nav.php',             // Custom nav modifications
   'lib/gallery.php',         // Custom [gallery] modifications
-  'lib/scripts.php',         // Scripts and stylesheets
   'lib/extras.php',          // Custom functions
 );
 

gulpfile.js

@@ -97,11 +97,12 @@ gulp.task('images', function() {
 });
 
 gulp.task('version', function() {
-  return gulp.src(['assets/dist/css/main.min.css', 'assets/dist/js/scripts.min.js'], { base: 'assets' })
+  return gulp.src(['assets/dist/css/main.min.css', 'assets/dist/js/scripts.min.js'], { base: 'assets/dist' })
+    .pipe(gulp.dest('assets/dist'))
     .pipe($.rev())
-    .pipe(gulp.dest('assets'))
+    .pipe(gulp.dest('assets/dist'))
     .pipe($.rev.manifest())
-    .pipe(gulp.dest('assets'));
+    .pipe(gulp.dest('assets/dist'));
 });
 
 gulp.task('watch', function() {

lib/scripts.php → lib/assets.php

@@ -14,30 +14,26 @@
  * - An ID has been defined in config.php
  * - You're not logged in as an administrator
  */
-function roots_scripts() {
-  /**
-   * The build task in Grunt renames production assets with a hash
-   * Read the asset names from assets-manifest.json
-   */
+function roots_asset_path($filename_dev, $filename) {
   if (WP_ENV === 'development') {
-    $assets = array(
-      'css'       => '/assets/dist/css/main.css',
-      'js'        => '/assets/dist/js/scripts.js',
-      'modernizr' => '/bower_components/modernizr/modernizr.js',
-      'jquery'    => '//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.js'
-    );
+    return get_template_directory_uri() . '/assets/dist/' . $filename_dev;
+  }
+
+  $manifest_path = get_template_directory() . '/assets/dist/rev-manifest.json';
+
+  if (file_exists($manifest_path)) {
+    $manifest = json_decode(file_get_contents($manifest_path), true);
   } else {
-    $get_assets = file_get_contents(get_template_directory() . '/assets/rev-manifest.json');
-    $assets     = json_decode($get_assets, true);
-    $assets     = array(
-      'css'       => '/assets/' . $assets[get_template_directory() . '/assets/dist/css/main.min.css'],
-      'js'        => '/assets/' . $assets[get_template_directory() . '/assets/dist/js/scripts.min.js'],
-      'modernizr' => '/assets/dist/js/modernizr.min.js',
-      'jquery'    => '//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js'
-    );
+    $manifest = [];
   }
 
-  wp_enqueue_style('roots_css', get_template_directory_uri() . $assets['css'], false, null);
+  if (array_key_exists($filename, $manifest)) {
+    return get_template_directory_uri() . '/assets/dist/' . $manifest[$filename];
+  }
+}
+
+function roots_assets() {
+  wp_enqueue_style('roots_css', roots_asset_path('css/main.css', 'css/main.min.css'), false, null);
 
   /**
    * jQuery is loaded using the same method from HTML5 Boilerplate:
@@ -46,19 +42,25 @@ function roots_scripts() {
    */
   if (!is_admin() && current_theme_supports('jquery-cdn')) {
     wp_deregister_script('jquery');
-    wp_register_script('jquery', $assets['jquery'], array(), null, true);
+
+    if (WP_ENV === 'development') {
+      wp_register_script('jquery', '//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.js', array(), null, true);
+    } else {
+      wp_register_script('jquery', '//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js', array(), null, true);
+    }
+
     add_filter('script_loader_src', 'roots_jquery_local_fallback', 10, 2);
   }
 
   if (is_single() && comments_open() && get_option('thread_comments')) {
     wp_enqueue_script('comment-reply');
   }
 
-  wp_enqueue_script('modernizr', get_template_directory_uri() . $assets['modernizr'], array(), null, true);
+  wp_enqueue_script('modernizr', roots_asset_path('../../bower_components/modernizr/modernizr.js', 'js/modernizr.min.js'), array(), null, true);
   wp_enqueue_script('jquery');
-  wp_enqueue_script('roots_js', get_template_directory_uri() . $assets['js'], array(), null, true);
+  wp_enqueue_script('roots_js', roots_asset_path('js/scripts.js', 'js/scripts.min.js'), array(), null, true);
 }
-add_action('wp_enqueue_scripts', 'roots_scripts', 100);
+add_action('wp_enqueue_scripts', 'roots_assets', 100);
 
 // http://wordpress.stackexchange.com/a/12450
 function roots_jquery_local_fallback($src, $handle = null) {