rollup.config.js

import analyzer from 'rollup-analyzer-plugin';
import babel from 'rollup-plugin-babel';
import commonjs from 'rollup-plugin-commonjs';
import external from 'rollup-plugin-peer-deps-external';
import replace from 'rollup-plugin-replace';
import resolve from 'rollup-plugin-node-resolve';
import uglify from 'rollup-plugin-uglify';
import camelCase from 'lodash/camelCase';

let file;
let sourcemap;
if (process.env.NODE_ENV === 'production') {
  file = `${process.env.BABEL_ENV}/${process.env.FILE_NAME}.min.${process.env.EXT}`;
  sourcemap = false;
} else {
  file = `${process.env.BABEL_ENV}/${process.env.FILE_NAME}.${process.env.EXT}`;
  sourcemap = true;
}

const config = {
  input: 'src/index.js',
  output: {
    file,
    name: `${camelCase(process.env.FILE_NAME)}`,
    format: process.env.BABEL_ENV,
    sourcemap,
    globals: {
      react: 'React',
      'prop-types': 'PropTypes',
      'react-router/Switch': 'Switch',
      'react-router/Route': 'Route',
      'react-router/Router': 'Router',
      'react-router/matchPath': 'matchPath',
    },
  },
  plugins: [
    external(),
    resolve({
      jsnext: true,
    }),
    commonjs({
      include: 'node_modules/**',
    }),
    babel({
      exclude: 'node_modules/**',
    }),
    replace({
      'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV),
    }),
    // closure(),
  ],
};

if (process.env.ANALYZER === true) {
  config.plugins.push(analyzer());
}

if (process.env.NODE_ENV === 'production') {
  config.plugins.push(uglify());
}

// noinspection JSUnusedGlobalSymbols
export default config;