config/webpack/loaders/babel.js

   1 const { resolve } = require('path');
   2
   3 const env = process.env.NODE_ENV || 'development';
   4
   5 module.exports = {
   6   test: /\.js$/,
   7   exclude: /node_modules/,
   8   loader: 'babel-loader',
   9   options: {
  10     sourceRoot: 'app/javascript',
  11     cacheDirectory: env === 'development' ? false : resolve(__dirname, '..', '..', '..', 'tmp', 'cache', 'babel-loader'),
  12   },
  13 };