rollup.config.js

/* eslint immutable/no-mutation: 0 */

import nodeResolve from 'rollup-plugin-node-resolve';
import babel from 'rollup-plugin-babel';
import replace from 'rollup-plugin-replace';
import uglify from 'rollup-plugin-uglify';
import { minify } from 'uglify-es';

const env = process.env.NODE_ENV;
const config = {
  input: 'src/index.js',
  plugins: [],
};

if (env === 'es' || env === 'cjs') {
  config.output = { format: env };
  config.plugins.push(babel({
    plugins: ['external-helpers'],
    externalHelpers: true,
  }));
}

if (env === 'development' || env === 'production') {
  config.output = { format: 'umd' };
  config.name = 'redux-eventually';
  config.plugins.push(
    nodeResolve({
      jsnext: 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,
      },
    },
    minify,
  ));
}

export default config;