webpack.config.js

/* eslint no-console: "off" */
const webpackConfigs = require('./config/webpack');

const defaultConfig = 'dev';

module.exports = (configName) => {
	// If there was no configuration given, assume default
	const requestedConfig = configName || defaultConfig;

	// Return a new instance of the webpack config
	// or the default one if it cannot be found.

	let LoadedConfig = defaultConfig;

	if (webpackConfigs[requestedConfig] !== undefined) {
		LoadedConfig = webpackConfigs[requestedConfig];
	} else {
		console.warn(`
			Provided environment "${configName}" was not found.
			Please use one of the following ones:
			${Object.keys(webpackConfigs).join(' ')}
		`);
	}

	// Set the global environment
	process.env.NODE_ENV = LoadedConfig.env;

	const loadedInstance = new LoadedConfig();
	return loadedInstance.config;
};