koel/webpack.config.js

const path = require('path')
const webpack = require('webpack')

module.exports = {
  externals: {
    electron: 'electron',
    'vue-electron': 'vue-electron'
  },
  resolve: {
    alias: {
      '@': path.resolve(__dirname, 'resources/assets/js'),
      '#': path.resolve(__dirname, 'resources/assets/sass')
    }
  },
  plugins: [
    new webpack.DefinePlugin({
      KOEL_ENV: '"web"'
    })
  ],
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader'
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(png|jpg|gif|svg)$/,
        loader: 'file-loader',
        options: {
          name: '[name].[ext]?[hash]'
        }
      }
    ]
  }
}

// test specific setups
if (process.env.NODE_ENV === 'test') {
  module.exports.externals = [require('webpack-node-externals')()]
  module.exports.devtool = 'inline-cheap-module-source-map'
}