MAGETWO-33903: Implement JS bundling preprocessing

dev/tools/grunt/configs/banner.js

+/**
+ * Copyright © 2015 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+'use strict';
+
+module.exports = {
+    firstLine: 'Copyright © <%= grunt.template.today("yyyy") %> Magento. All rights reserved.',
+    secondLine: 'See COPYING.txt for license details.',
+
+    css: function () {
+        return '/**\n * ' + this.firstLine + '\n * ' + this.secondLine + '\n */\n';
+    },
+
+    less: function () {
+        return '// /**\n//  * ' + this.firstLine + '\n//  * ' + this.secondLine + '\n//  */\n';
+    },
+
+    html: function () {
+        return '<!--\n/**\n * ' + this.firstLine + '\n * ' + this.secondLine + '\n */\n-->\n';
+    }
+};

dev/tools/grunt/configs/path.js

@@ -14,10 +14,10 @@ module.exports = {
     tmpSource: 'var/view_preprocessed/source/',
     tmp: 'var',
     css: {
-        setup: 'setup/pub/magento/setup/css'
+        setup: 'setup/pub/styles'
     },
     less: {
-        setup: 'setup/module/Magento/Setup/styles'
+        setup: 'setup/view/styles'
     },
     uglify: {
         legacy: 'lib/web/legacy-build.min.js'

dev/tools/grunt/configs/usebanner.js

+/**
+ * Copyright © 2015 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+'use strict';
+
+var banner = require('./banner');
+
+module.exports = {
+    options: {
+        position: 'top',
+        linebreak: true
+    },
+    setup: {
+        options: {
+            banner: banner.css()
+        },
+        files: {
+            src: '<%= path.css.setup %>/*.css'
+        }
+    },
+    documentationCss: {
+        options: {
+            banner: banner.css()
+        },
+        files: {
+            src: '<%= path.doc %>/**/*.css'
+        }
+    },
+    documentationLess: {
+        options: {
+            banner: banner.less()
+        },
+        files: {
+            src: '<%= path.doc %>/**/*.less'
+        }
+    },
+    documentationHtml: {
+        options: {
+            banner: banner.html()
+        },
+        files: {
+            src: '<%= path.doc %>/**/*.html'
+        }
+    }
+};