rollup.config.js

import babel from 'rollup-plugin-babel';
import json from 'rollup-plugin-json';
import memory from 'rollup-plugin-memory';
import postcss from 'rollup-plugin-postcss';
import fs from 'fs';

var babelRc = JSON.parse(fs.readFileSync('.babelrc','utf8')); // eslint-disable-line

export default {
    input: './lib/index.js',
    exports: 'default',
    globals: {
        'react': 'React',
        'react-dom': 'ReactDOM'
    },
    plugins: [
        postcss({
            plugins: [
                require('postcss-import')(),
                require('postcss-url')(),
                require('postcss-cssnext')(),
                require('postcss-mixins'),
                require('postcss-nested')(),
            ],
            extensions: ['.css'],
        }),
        json(),
        memory({
            path: 'lib/index',
            contents: "export { default } from './index'",
        }),
        babel({
            babelrc: false,
            presets: ['es2015-rollup'].concat(babelRc.presets.slice(1)),
            plugins: babelRc.plugins,
            exclude: 'node_modules/**',
        }),
    ],
};