Combining Prism.js languages

0-Gruntfile.js

module.exports = function(grunt) {

    pkg = grunt.file.readJSON('package.json');

    require('load-grunt-config')(grunt, pkg);
    require('load-grunt-tasks')(grunt, pkg);
    
    // ...
    
    grunt.registerTask('prism', ['concat', 'uglify']);    
};

1-concat.js

module.exports = {
    prism: {
        options: {
            separator: ';',
        },
        src: [
            'bower_components/prism/prism.js',
            'bower_components/prism/components/prism-php.js',
            'bower_components/prism/components/prism-bash.js',
            'bower_components/prism/components/prism-sass.js',
            'bower_components/prism/components/prism-twig.js',
        ],
        dest: '../js/prism.js',
    }
};

2-uglify.js

module.exports = {
    prism: {
        options: {
            banner: '/**\n * Prism: Lightweight, robust, elegant syntax highlighting\n * MIT license http://www.opensource.org/licenses/mit-license.php/\n * @author Lea Verou http://lea.verou.me\n */\n'
        },
        files: [
            {
                '../js/prism.min.js' : '../js/prism.js',
            }
        ]
    }
};