Gruntfile reduced to only grunt-only "version" plugin. Gulpfile set up. package.json updated with gulp dependencies

Gruntfile.js

@@ -1,112 +1,9 @@
 'use strict';
 module.exports = function(grunt) {
-  // Load all tasks
-  require('load-grunt-tasks')(grunt);
-  // Show elapsed time
-  require('time-grunt')(grunt);
 
-  var jsFileList = [
-    'assets/vendor/bootstrap/js/transition.js',
-    'assets/vendor/bootstrap/js/alert.js',
-    'assets/vendor/bootstrap/js/button.js',
-    'assets/vendor/bootstrap/js/carousel.js',
-    'assets/vendor/bootstrap/js/collapse.js',
-    'assets/vendor/bootstrap/js/dropdown.js',
-    'assets/vendor/bootstrap/js/modal.js',
-    'assets/vendor/bootstrap/js/tooltip.js',
-    'assets/vendor/bootstrap/js/popover.js',
-    'assets/vendor/bootstrap/js/scrollspy.js',
-    'assets/vendor/bootstrap/js/tab.js',
-    'assets/vendor/bootstrap/js/affix.js',
-    'assets/js/plugins/*.js',
-    'assets/js/_*.js'
-  ];
+  grunt.loadNpmTasks('grunt-wp-assets');
 
   grunt.initConfig({
-    jshint: {
-      options: {
-        jshintrc: '.jshintrc'
-      },
-      all: [
-        'Gruntfile.js',
-        'assets/js/*.js',
-        '!assets/js/scripts.js',
-        '!assets/**/*.min.*'
-      ]
-    },
-    less: {
-      dev: {
-        files: {
-          'assets/css/main.css': [
-            'assets/less/main.less'
-          ]
-        },
-        options: {
-          compress: false,
-          // LESS source map
-          // To enable, set sourceMap to true and update sourceMapRootpath based on your install
-          sourceMap: true,
-          sourceMapFilename: 'assets/css/main.css.map',
-          sourceMapRootpath: '/app/themes/roots/'
-        }
-      },
-      build: {
-        files: {
-          'assets/css/main.min.css': [
-            'assets/less/main.less'
-          ]
-        },
-        options: {
-          compress: true
-        }
-      }
-    },
-    concat: {
-      options: {
-        separator: ';',
-      },
-      dist: {
-        src: [jsFileList],
-        dest: 'assets/js/scripts.js',
-      },
-    },
-    uglify: {
-      dist: {
-        files: {
-          'assets/js/scripts.min.js': [jsFileList]
-        }
-      }
-    },
-    autoprefixer: {
-      options: {
-        browsers: ['last 2 versions', 'ie 8', 'ie 9', 'android 2.3', 'android 4', 'opera 12']
-      },
-      dev: {
-        options: {
-          map: {
-            prev: 'assets/css/'
-          }
-        },
-        src: 'assets/css/main.css'
-      },
-      build: {
-        src: 'assets/css/main.min.css'
-      }
-    },
-    modernizr: {
-      build: {
-        devFile: 'assets/vendor/modernizr/modernizr.js',
-        outputFile: 'assets/js/vendor/modernizr.min.js',
-        files: {
-          'src': [
-            ['assets/js/scripts.min.js'],
-            ['assets/css/main.min.css']
-          ]
-        },
-        uglify: true,
-        parseFiles: true
-      }
-    },
     version: {
       default: {
         options: {
@@ -122,54 +19,7 @@ module.exports = function(grunt) {
           'lib/scripts.php': 'assets/{css,js}/{main,scripts}.min.{css,js}'
         }
       }
-    },
-    watch: {
-      less: {
-        files: [
-          'assets/less/*.less',
-          'assets/less/**/*.less'
-        ],
-        tasks: ['less:dev', 'autoprefixer:dev']
-      },
-      js: {
-        files: [
-          jsFileList,
-          '<%= jshint.all %>'
-        ],
-        tasks: ['jshint', 'concat']
-      },
-      livereload: {
-        // Browser live reloading
-        // https://github.com/gruntjs/grunt-contrib-watch#live-reloading
-        options: {
-          livereload: false
-        },
-        files: [
-          'assets/css/main.css',
-          'assets/js/scripts.js',
-          'templates/*.php',
-          '*.php'
-        ]
-      }
     }
   });
 
-  // Register tasks
-  grunt.registerTask('default', [
-    'dev'
-  ]);
-  grunt.registerTask('dev', [
-    'jshint',
-    'less:dev',
-    'autoprefixer:dev',
-    'concat'
-  ]);
-  grunt.registerTask('build', [
-    'jshint',
-    'less:build',
-    'autoprefixer:build',
-    'uglify',
-    'modernizr',
-    'version'
-  ]);
 };