webpack.config.js

const env          = process.env.NODE_ENV || 'development';
const envConfig    = require(`./config/webpack/webpack.${env}`);
const common       = require('./config/webpack/webpack.common');
const webpackMerge = require('webpack-merge');

const getAddons = addonsArgs => {
    const addons = Array.isArray(addonsArgs) ? addonsArgs : [addonsArgs];
    return addons
        .filter(Boolean)
        .map(name => require(`./config/webpack/addons/webpack.${name}.js`))
    ;
};

module.exports = ({ addon } = {}) => {
    console.log('process.env.NODE_ENV===>', env, 'addon ==>', addon);
    return webpackMerge(common, envConfig, ...getAddons(addon));
};