webpack for phoenix, integrated with vue, needs some cleanup

.babelrc

{
  "presets": [
    [
      "@babel/preset-env",
      {
        "targets":
        {
          "browsers": [
            "last 2 Chrome versions"
          ]
        }
      }
    ]
  ]
}

webpack.config.js

const path = require('path');
const glob = require('glob');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const { VueLoaderPlugin } = require('vue-loader');

module.exports = (env, options) => ({
  mode: 'development',
  watch: true,
  watchOptions: {
    poll: 200,
    aggregateTimeout: 1000,
    ignored: /node_modules/,
  },
  optimization: {
    minimizer: [
      new UglifyJsPlugin({ cache: true, parallel: true, sourceMap: false }),
      new OptimizeCSSAssetsPlugin({})
    ]
  },
  entry: {
    'app': ['./js/app.js'].concat(glob.sync('./vendor/**/*.js'))
  },
  output: {
    filename: '[name].js',
    path: path.resolve(__dirname, '../priv/static/js')
  },
  resolve: {
    'alias': {
      'vue$': 'vue/dist/vue.esm.js'
    }
  },
  module: {
    rules: [
      { test: /\.vue$/, use: 'vue-loader' },
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader'
        }
      },
      {
        test: /\.scss$/,
        use: ['vue-style-loader', 'css-loader', 'sass-loader']
      },
      {
        test: /\.css$/,
        use: ['vue-style-loader', MiniCssExtractPlugin.loader, 'css-loader']
      },
      {
        test: /\.(woff(2)?|ttf|eot|svg)(\?v=\d+\.\d+\.\d+)?$/,
        use: [{
          loader: 'file-loader',
          options: {
            name: '[name].[hash:7].[ext]',
            outputPath: '../fonts'
          }
        }]
      },
    ]
  },
  plugins: [
    new MiniCssExtractPlugin({ filename: '../css/app.css' }),
    new CopyWebpackPlugin([{ from: 'static/', to: '../' }]),
    new VueLoaderPlugin(),
  ]
});

yarn add vue-loader -D

Development dependency will be added, including vue-load, vue-style-load, etc.

vue-style-loader must be in front of MiniCssExtractPlugin.loader, in css rule.