soapbox/webpack.config.js

require('dotenv').config();

const { NODE_ENV } = process.env;

switch(NODE_ENV) {
case 'development':
case 'production':
case 'test':
  module.exports = require(`./webpack/${NODE_ENV}`); break;
default:
  console.error('ERROR: NODE_ENV must be set to either `development`, `test`, or `production`.');
  process.exit(1);
}