webpack.config.js

const path = require('path')
const webpack = require('webpack')
const { VueLoaderPlugin } = require('vue-loader')
const autoprefixer = require('autoprefixer')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const TerserJSPlugin = require('terser-webpack-plugin')
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin')

module.exports = {
  entry: './src/index.js',
  output: {
    filename: '[name].js',
    path: path.resolve(__dirname, 'public'),
  },
  stats: {
    modules: false,
    children: false,
  },
  optimization: {
    splitChunks: {
      cacheGroups: {
        vendor: {
          test: /[\\/]node_modules[\\/]/,
          name: 'vendors',
          chunks: 'initial',
        },
      },
    },
    minimizer: [
      new TerserJSPlugin({ extractComments: false }), 
      new OptimizeCSSAssetsPlugin(),
    ],
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        use: 'vue-loader',
      },
      {
        test: /\.js$/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env']
          },
        },
      },
      {
        test: /\.styl(us)?$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          { 
            loader: 'postcss-loader', 
            options: { 
              plugins: [ 
                autoprefixer, 
              ], 
            }, 
          },
          'stylus-loader',
        ]
      },
    ],
  },
  plugins: [
    new VueLoaderPlugin(),
    new webpack.LoaderOptionsPlugin({
      options: {
        stylus: {
          import: [path.resolve(__dirname, './src/stylus/variables.styl')],
        }
      }
    }),
    new MiniCssExtractPlugin({
      filename: '[name].css',
    }),
    new webpack.ProgressPlugin(),
  ],
}