webpack.common.js

const path = require('path');
const CleanWebpackPlugin = require('clean-webpack-plugin');
// const HtmlWebpackPlugin = require('html-webpack-plugin');
// const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;

module.exports = {
  devtool: 'eval',
  entry: [
    'babel-polyfill',
    './app/index.js',
  ],
  output: {
    path: path.join(__dirname, 'app/dist'),
    filename: 'bundle.js',
  },
  resolve: {
    extensions: ['*', '.js', '.vue', '.json'],
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        use: 'babel-loader',
        include: [
          path.resolve(__dirname, 'app'),
        ],
        exclude: /node_modules/,
      },
      {
        test: /\.scss$/,
        use: [
          {loader: 'style-loader'},
          {loader: 'css-loader'},
          {loader: 'sass-loader'},
        ]
      },
      {
        test: /\.worker\.js$/,
        use: {
          loader: 'worker-loader',
          options: {
            publicPath: '/dist/',
          }
        }
      },
      {
        test: /\.vue$/,
        use: {
          loader: 'vue-loader',
          options: {
            esModule: true,
          }
        }
      }
    ]
  },
  plugins: [
    new CleanWebpackPlugin(['dist']),
    // new BundleAnalyzerPlugin(),
  ],
};