webpack.config.js

const webpack = require('webpack');
const path = require('path');
const VueLoaderPlugin = require('vue-loader/lib/plugin');
const UglifyJsPlugin = require("uglifyjs-webpack-plugin");
var HtmlWebpackPlugin = require('html-webpack-plugin');

// Update this for additional vendor libraries
const VENDOR_LIBS = ['vue'];

module.exports = {
  entry: {
    bundle: './docs/src/index.js',
    vendor: VENDOR_LIBS
  },
  output: {
    path: path.resolve(__dirname, './docs/dist'),
    filename: '[name].[hash].js'
  },
  optimization: {
    minimizer: [
      new UglifyJsPlugin({
        sourceMap: true,
        parallel: 4,
        uglifyOptions: {
          warnings: false,
          compress: {
            warnings: false
          },
        },
      })
    ],
    splitChunks: {
      chunks: 'async',
      minSize: 30000,
      maxSize: 0,
      minChunks: 1,
      maxAsyncRequests: 5,
      maxInitialRequests: 3,
      automaticNameDelimiter: '~',
      name: true,
      cacheGroups: {
        vendors: {
          test: /[\\/]node_modules[\\/]/,
          priority: -10
        },
        default: {
          minChunks: 2,
          priority: -20,
          reuseExistingChunk: true
        }
      }
    }
  },
  plugins: [
    new VueLoaderPlugin(),
    new HtmlWebpackPlugin({
      template: 'docs/src/index.html'
    })
  ],
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          loaders: {
            'scss': 'vue-style-loader!css-loader!sass-loader'
          }
          // other vue-loader options go here
        }
      },
      {
        test: /\.css$/,
        loader: 'vue-style-loader!css-loader'
      },
      {
        test: /\.less$/,
        use: [
          'vue-style-loader',
          'css-loader',
          {
            loader: 'less-loader',
          }
        ]
      },
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(png|jpg|gif|svg)$/,
        loader: 'file-loader',
        options: {
          name: '[name].[ext]?[hash]'
        }
      }
    ]
  },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js',
      mylib: path.resolve(__dirname, './src')
    }
  },
  devServer: {
    historyApiFallback: true,
    noInfo: true
  },
  performance: {
    hints: false
  },
  devtool: '#eval-source-map'
}

if (process.env.NODE_ENV === 'production') {
  module.exports.devtool = '#source-map'
  // http://vue-loader.vuejs.org/en/workflow/production.html
  module.exports.plugins = (module.exports.plugins || []).concat([
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: '"production"'
      }
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  ])
}