webpack.config.js

"use strict";

const path = require("path");
const args = require("minimist")(process.argv.slice(2));

// List of allowed environments
const allowedEnvs = ["dev", "dist", "test"];

// Set the correct environment
var env;
if (args._.length > 0 && args._.indexOf("start") !== -1) {
  env = "test";
} else if (args.env) {
  env = args.env
} else {
  env = "dev";
}
process.env.REACT_WEBPACK_ENV = env;

/**
 * Build the webpack configuration
 * @param  {String} wantedEnv The wanted environment
 * @return {Object} Webpack config
 */
function buildConfig(wantedEnv) {
  let isValid = wantedEnv && wantedEnv.length > 0 && allowedEnvs.indexOf(wantedEnv) !== -1;
  let validEnv = isValid ? wantedEnv : "dev";

  return require(path.join(__dirname, "cfg/" + validEnv));
}

module.exports = buildConfig(env);