freesewing/packages/plugin-theme/rollup.config.js

import babel from 'rollup-plugin-babel'
import resolve from 'rollup-plugin-node-resolve'
import json from 'rollup-plugin-json'
import sass from 'rollup-plugin-sass'
import peerDepsExternal from 'rollup-plugin-peer-deps-external'
import minify from 'rollup-plugin-babel-minify'
import { version, name, description, author, license, main, module } from './package.json'
import fs from 'fs'

export default {
  input: 'src/index.js',
  output: [
    {
      file: main,
      format: 'cjs',
      sourcemap: true
    },
    {
      file: module,
      format: 'es',
      sourcemap: true
    }
  ],
  plugins: [
    peerDepsExternal(),
    resolve(),
    json(),
    babel({
      exclude: 'node_modules/**'
    }),
    sass({
      output(styles, styleNodes) {
        fs.writeFileSync('./src/bundle.css.js', 'export default `' + styles + '`;')
      }
    }),
    minify({
      comments: false,
      sourceMap: true,
      banner: `/**\n * ${name} | v${version}\n * ${description}\n * (c) ${new Date().getFullYear()} ${author}\n * @license ${license}\n */`
    })
  ]
}