gulpfile.js

var elixir = require('laravel-elixir');

elixir.config.production = true;
elixir.config.sourcemaps = false;

elixir(function (mix) {
    mix
        .sass('app.scss', 'public/dist/css/app.css')
        .styles([
            'vendor/bower_components/prism/themes/prism-okaidia.css',
            'vendor/bower_components/nprogress/nprogress.css',
            'vendor/bower_components/messenger/build/css/messenger*.css',
            'vendor/bower_components/select2/dist/css/select2.css',
            'vendor/bower_components/ekko-lightbox/dist/ekko-lightbox.css',
            'public/dist/css/app.css'
        ], 'public/dist/css/all.css', './')
        .scripts([
            'vendor/bower_components/jquery/dist/jquery.js',
            'vendor/bower_components/bootstrap-sass/assets/javascripts/bootstrap.js',
            'vendor/bower_components/sweetalert/dist/sweetalert.min.js',
            'vendor/bower_components/moment/min/moment-with-locales.js',
            'vendor/bower_components/lodash/lodash.js',
            'vendor/bower_components/messenger/build/js/messenger.js',
            'vendor/bower_components/jquery-pjax/jquery.pjax.js',
            'vendor/bower_components/autosize/jquery.autosize.min.js',
            'vendor/bower_components/scrollup/dist/jquery.scrollUp.min.js',
            'vendor/bower_components/jquery-textcomplete/dist/jquery.textcomplete.min.js',
            'vendor/bower_components/nprogress/nprogress.js',
            'vendor/bower_components/jquery-serialize-object/jquery.serialize-object.js',
            'vendor/bower_components/jquery-caret/jquery.caret.js',
            'vendor/bower_components/marked/marked.min.js',
            'vendor/bower_components/markdown/lib/markdown.js',
            'vendor/bower_components/prism/prism.js',
            'vendor/bower_components/localforage/dist/localforage.min.js',
            'vendor/bower_components/emoji/lib/emoji.js',
            'vendor/bower_components/emojify/dist/js/emojify.min.js',
            'vendor/bower_components/ekko-lightbox/dist/ekko-lightbox.min.js',
            'vendor/bower_components/Sortable/Sortable.js',
            'vendor/bower_components/select2/dist/js/select2.min.js',
            'vendor/bower_components/inline-attachment/src/inline-attach.js',
            'vendor/bower_components/inline-attachment/src/jquery.inline-attach.js',
            'resources/assets/js/*.js'
        ], 'public/dist/js/all.js', './')
        .version(['public/dist/css/all.css', 'public/dist/js/all.js'])
        .copy('vendor/bower_components/font-awesome/fonts/', 'public/fonts/')
        .copy('vendor/bower_components/ionicons/fonts/', 'public/fonts/');
});