module.exports = {
  output: {
    // use absolute paths in sourcemaps (important for debugging via IDE)
    devtoolModuleFilenameTemplate: '[absolute-resource-path]',
    devtoolFallbackModuleFilenameTemplate: '[absolute-resource-path]?[hash]'
  },
  module: {
    rules: [
      {
        test: /\.js$|\.vue$/,
        use: {
          loader: 'istanbul-instrumenter-loader',
          options: { esModules: true }
        },
        enforce: 'post',
        exclude: /node_modules|\.spec\.js$/
      },
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        exclude: /node_modules/,
        options: {
          optimizeSSR: false,
          loaders: {
            scss: ['vue-style-loader', 'css-loader']
          }
        }
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      }
    ]
  },
  devServer: {
    historyApiFallback: true,
    noInfo: true
  },
  performance: {
    hints: false
  },
  externals: [require('webpack-node-externals')()], // in order to ignore all modules in node_modules folder
  devtool: 'inline-cheap-module-source-map',
  target: 'node' // webpack should compile node compatible code
}