gistfile1.txt

module.exports = {
  paths: {
    public: '../app/assets'
  },
  files: {
    javascripts: {
      joinTo: {
        'javascripts/vendor.js': /^(?!app)/,
        'javascripts/app.js': /^app/
      }
    },
    stylesheets: {
      joinTo: 'stylesheets/app.css'
    }
  },

  plugins: {
    babel: {presets: ['es2015']}
  }

};