rollup.config.js

import babel from 'rollup-plugin-babel'
import uglify from 'rollup-plugin-uglify'
import replace from 'rollup-plugin-replace'
import commonjs from 'rollup-plugin-commonjs'
import resolve from 'rollup-plugin-node-resolve'
import includePaths from 'rollup-plugin-includepaths'
import builtins from 'rollup-plugin-node-builtins'
import globals from 'rollup-plugin-node-globals'

let includePathOptions = {
  include: {
    'axios': 'node_modules/axios/index.js'
  },
  paths: ['src/plugins', 'src/plugins/custom'],
  external: [],
  extensions: ['.js', '.json', '.html']
}

const env = process.env.NODE_ENV

const config = {
  format: 'umd',
  sourceMap: (env !== 'production'),
  external: ['form-data', 'axios', 'querystring'],
  plugins: [
    globals(),
    builtins(),
    resolve({
      main: true,
      jsnext: true,
      browser: true
    }),
    includePaths(includePathOptions),
    commonjs({
      // if false then skip sourceMap generation for CommonJS modules
      sourceMap: (env !== 'production') // Default: true
    }),
    babel({exclude: 'node_modules/**'}),
    replace({
      'process.env.NODE_ENV': JSON.stringify(env)
    })
  ]
}

if (env === 'production') {
  config.plugins.push(
    uglify({
      compress: {
        pure_getters: true,
        unsafe: true,
        unsafe_comps: true,
        warnings: false
      }
    })

  )
}

export default config