Wright and rollup

gistfile1.txt

const fs = require('fs')
    , rollup = require('rollup')
    , json = require('rollup-plugin-json')
    , commonjs = require('rollup-plugin-commonjs')
    , nodeResolve = require('rollup-plugin-node-resolve')
    , wright = require('wright')

wright({
  main: 'static/index.html',
  run: 'm.redraw',
  debug: true,
  js: {
    watch: 'src/js/**/*.js',
    path: 'js/app.js',
    compile: roll
  }
})

let cache

function roll() {
  return rollup.rollup({
    entry: 'src/app.js',
    cache: cache,
    plugins: [
      json(),
      commonjs(),
      nodeResolve()
    ]
  })
  .then(bundle => {
    cache = bundle
    bundle.generate({ format: 'iife' }).code
  })
}