webpack.config.js

const
  path = require('path'),
  webpack = require('webpack'),
  ExtractTextPlugin = require('extract-text-webpack-plugin'),
  HtmlWebpackPlugin = require('html-webpack-plugin'),
  extractStylus = 'css-loader?sourceMap!stylus-loader',
  development = !['production', 'ci'].includes(process.env.NODE_ENV)

require('babel-polyfill');

module.exports = {
  devtool: 'source-map',
  entry: [
    'babel-polyfill',
    path.join(__dirname, process.env.TEST_RUN ? 'client/test/index' : 'client/main')
  ].filter(x => x),
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'cadence.[hash].js',
    publicPath: '/'
  },
  plugins: [
    !development && new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: '"production"'
      }
    }),
    new ExtractTextPlugin({ filename: development ? 'cadence.css' : 'cadence.[hash].css', allChunks: true }),
    new HtmlWebpackPlugin({
      title: 'Cadence',
      filename: 'index.html',
      favicon: 'favicon.ico',
      inject: false,
      template: require('html-webpack-template'),
      lang: 'en-US',
      scripts: (process.env.CADENCE_EXTERNAL_SCRIPTS || '').split(',').filter(x => x)
    })
  ].filter(x => x),
  module: {
    rules: [
      {
        test: /\.js$/,
        loader: 'babel-loader',
        options: {
          configFile: path.resolve(__dirname, 'babel.config.js'),
        },
      },
      {
        test: /\.vue?$/,
        loader: 'vue-loader',
        options: {
          loaders: {
            js: {
              loader: 'babel-loader',
              options: {
                configFile: path.resolve(__dirname, 'babel.config.js'),
              },
            },
            stylus: ExtractTextPlugin.extract({
              use: extractStylus,
              fallback: 'vue-style-loader'
            }),
          }
        }
      },
      {
        test: /\.svg$/,
        use: [{
          loader: 'html-loader',
          options: {
            minimize: true
          }
        }]
      },
      {
        test: /\.(png|jpg|gif)$/,
        loader: 'file-loader',
        options: {
          name: '[name].[ext]?[hash]'
        }
      },
      {
        test: /\.styl$/,
        use: ExtractTextPlugin.extract({ use: extractStylus, fallback: 'raw-loader' }),
        include: path.join(__dirname, 'src')
      }
    ]
  },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js',
    },
    extensions: ['*', '.js', '.vue', '.json']
  },
  devServer: {
    historyApiFallback: true,
    overlay: true
  }
}