webpack.build.config.js

const webpack = require('webpack');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');
const APP_DIR = path.resolve(__dirname, './src');
const MONACO_DIR = path.resolve(__dirname, './node_modules/monaco-editor');

// Any directories you will be adding code/files into, need to be added to this array so webpack will pick them up
const defaultInclude = path.resolve(__dirname, 'src');

module.exports = {
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [MiniCssExtractPlugin.loader, 'css-loader', 'postcss-loader'],
        include: defaultInclude,
      },
      {
        test: /\.jsx?$/,
        use: [{ loader: 'babel-loader', options: { presets: ['@babel/preset-env', '@babel/preset-react'] } }],
        include: defaultInclude,
      },
      {
        test: /\.(jpe?g|png|gif)$/,
        use: [{ loader: 'file-loader?name=img/[name]__[hash:base64:5].[ext]' }],
        include: defaultInclude,
      },
      {
        test: /\.(eot|svg|ttf|woff|woff2)$/,
        use: [{ loader: 'file-loader?name=font/[name]__[hash:base64:5].[ext]' }],
        include: defaultInclude,
      },
      {
        test: /\.css$/,
        include: MONACO_DIR,
        use: ['style-loader', 'css-loader'],
      },
      {
        test: /\.node$/,
        use: ['node-loader'],
      },
    ],
  },
  target: 'electron-renderer',
  plugins: [
    new HtmlWebpackPlugin({ title: 'fflow' }),
    new MiniCssExtractPlugin({
      // Options similar to the same options in webpackOptions.output
      // both options are optional
      filename: 'bundle.css',
      chunkFilename: '[id].css',
    }),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('production'),
    }),
    // new MinifyPlugin()
  ],
  resolve: {
    extensions: ['.js', '.jsx'],
  },
  stats: {
    colors: true,
    children: false,
    chunks: false,
    modules: false,
  },
  optimization: {
    minimize: true,
  },
};