rollup.config.js

import replace from 'rollup-plugin-replace';
import resolve from 'rollup-plugin-node-resolve';
import commonjs from 'rollup-plugin-commonjs';
import babel from 'rollup-plugin-babel';
import pkg from './package.json';

export default [
  // CommonJS (for Node) and ES module (for bundlers) build.
  // (We could have three entries in the configuration array
  // instead of two, but it's quicker to generate multiple
  // builds from a single configuration where possible, using
  // an array for the `output` option, where we can specify
  // `file` and `format` for each target)
  {
    input: 'src/index.js',
    external: ['hoist-non-react-statics', 'react'],
    output: [{file: pkg.main, format: 'cjs'}, {file: pkg.module, format: 'es'}],
    plugins: [
      replace({
        'process.env.NODE_ENV': JSON.stringify('production'),
      }),
      resolve(),
      commonjs({
        include: 'node_modules/**',
      }),
      babel({
        exclude: 'node_modules/**',
      }),
    ],
  },
];