rollup.config.js

import nodeResolve from 'rollup-plugin-node-resolve';
import babel from 'rollup-plugin-babel';
import replace from 'rollup-plugin-replace';
import commonjs from 'rollup-plugin-commonjs';
import uglify from 'rollup-plugin-uglify';

const env = process.env.NODE_ENV;

const config = {
    input: 'src/index.js',
    external: ['react-redux', 'redux', 'reselect'],
    globals: {
        react: 'React',
        redux: 'Redux',
        reselect: 'Reselect',
        'react-redux': 'ReactRedux'
    },
    output: {
        format: 'umd'
    },
    name: 'ReactReduxBoilerOut',
    plugins: [
        nodeResolve(),
        babel({
            exclude: '**/node_modules/**',
            plugins: ['transform-es3-property-literals', 'external-helpers'],
            presets: ['es2015-rollup'],
            externalHelpers: true
        }),
        replace({
            'process.env.NODE_ENV': JSON.stringify(env)
        }),
        commonjs()
    ]
};

if (env === 'production') {
    config.plugins.push(
        uglify({
            mangle: {
                properties: {
                    keep_quoted: true,
                }
            },
            output: {
                quote_keys: true,
                keep_quoted_props: true,
                quote_style: 2
            },
            compress: {
                properties: false,
                pure_getters: true,
                unsafe: true,
                unsafe_comps: true,
                warnings: false
            },
            keep_fnames: true,
            ie8: true
        })
    );
}

export default config;