webpack.config.js

'use strict';

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

module.exports = (configName) => {

    // If there was no configuration give, 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(' ')}`);
        LoadedConfig = webpackConfigs[defaultConfig];
    }

    const loadedInstance = new LoadedConfig();

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

    return loadedInstance.config;
}
;