rollup.config.js

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

const babelOptions = {
    runtimeHelpers: true,
    presets: [['es2015', { modules: false }]],
    plugins: [
        'external-helpers',
        'transform-object-rest-spread',
        'transform-class-properties',
        'transform-export-extensions'
    ],
    babelrc: false
};

const modules = {
    router5: 'packages/router5/modules/index.js',
    router5BrowserPlugin: 'packages/router5/modules/plugins/browser/index.js',
    router5ListenersPlugin:
        'packages/router5/modules/plugins/listeners/index.js',
    persistentParamsPlugin:
        'packages/router5/modules/plugins/persistentParams/index.js',
    reactRouter5: 'packages/react-router5/modules/index.js',
    reduxRouter5: 'packages/redux-router5/modules/index.js',
    router5Helpers: 'packages/router5-helpers/modules/index.js'
};

const modulesToBuild = Object.keys(modules).reduce((acc, moduleName) => {
    const base = {
        format: 'umd',
        entry: modules[moduleName],
        external: ['react'],
        moduleName
    };
    const packageDir = modules[moduleName].match(/^packages\/([\w-]+)\//)[1];
    const plugins = [
        common({ include: `packages/${packageDir}/node_modules/**` }),
        babel(babelOptions),
        nodeResolve({ jsnext: true })
    ];

    return acc.concat([
        Object.assign({}, base, {
            dest: `dist/${moduleName}.js`,
            plugins
        }),
        Object.assign({}, base, {
            dest: `dist/${moduleName}.min.js`,
            plugins: plugins.concat(uglify())
        })
    ]);
}, []);

export default modulesToBuild;