webpack.dev.js

const path = require('path');
const { spawn } = require('child_process');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const WriteFilePlugin = require('write-file-webpack-plugin');

global.dirname = __dirname;

module.exports = env => ({
  target: 'electron-renderer',
  mode: 'development',
  devtool: 'eval-source-map',
  entry: {
    app: path.join(__dirname, 'app/container/index.jsx'),
    preload: path.join(__dirname, 'app/container/preload.js'),
  },
  resolve: {
    extensions: ['.js', '.jsx', '.mjs', '.wasm', '.json'],
  },
  output: {
    path: path.resolve(__dirname, 'app/containerDist'),
    publicPath: '/',
    filename: '[name].js',
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: 'app/container/index.tpl.html',
      inject: 'body',
      filename: 'index.html',
      excludeChunks: ['preload'],
    }),
    new WriteFilePlugin(),
  ],
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            babelrc: false,
            cacheDirectory: false,
            presets: [
              [
                '@babel/preset-env',
                {
                  targets: {
                    electron: '3.0.2',
                  },
                  modules: false,
                  useBuiltIns: 'entry',
                },
              ],
              [
                '@babel/preset-react',
                {
                  development: (!env || !env.NODE_ENV)
                    ? 'development'
                    : env.NODE_ENV.toLowerCase() === 'development',
                },
              ],
              '@babel/preset-flow',
            ],
            plugins: [
              '@babel/plugin-proposal-export-namespace-from',
              '@babel/plugin-proposal-export-default-from',
              '@babel/plugin-proposal-class-properties',
              [
                // used only for babel helpers
                '@babel/plugin-transform-runtime',
                {
                  // regenerator runtime should be used from global polyfill
                  regenerator: false,
                  // define babel helpers as es modules
                  useESModules: true,
                },
              ],
              [
                'babel-plugin-styled-components',
                {
                  displayName: true,
                },
              ],
            ],
            env: {
              development: {
                plugins: [
                  'react-hot-loader/babel',
                ],
              },
            },
          },
        },
      },
      {
        test: /\.(css)$/,
        use: [
          'style-loader',
          'css-loader',
        ],
      },
      {
        test: /\.(less)$/,
        use: [
          'style-loader',
          'css-loader',
          {
            loader: 'less-loader',
            options: {
              javascriptEnabled: true,
            },
          },
        ],
      },
      // WOFF/WOFF2 Fonts
      {
        test: /\.woff(.*)?$/,
        use: {
          loader: 'url-loader',
          options: {
            limit: 10000,
            mimetype: 'application/font-woff',
          },
        },
      },
      // TTF Fonts
      {
        test: /\.ttf(.*)?$/,
        use: {
          loader: 'file-loader',
          options: {
            limit: 10000,
            name: 'fonts/[name].[ext]',
          },
        },
      },
      // SVG
      {
        test: /\.svg(.*)?$/,
        use: {
          loader: 'svg-inline-loader',
        },
      },
      // Common Image Formats
      {
        test: /\.(?:ico|gif|png|jpg|jpeg|eot|webp)$/,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[path][name].[ext]',
            },
          },
        ],
      },
    ],
  },

  devServer: {
    contentBase: path.resolve(__dirname, 'app/containerDist'),
    port: 9001,
    hot: false,
    lazy: false,
    compress: true,
    stats: 'minimal',
    headers: {
      'Access-Control-Allow-Origin': '*',
    },
    watchOptions: {
      aggregateTimeout: 1000,
      ignored: /node_modules/,
      poll: 100,
    },
    historyApiFallback: {
      verbose: true,
      disableDotRule: true,
    },
    before() {
      spawn(
        'npm',
        ['run', 'start-main-dev'],
        {
          shell: true,
          env: {
            ...process.env,
            ...env,
            PORT: 9001,
            ELECTRON_ENABLE_LOGGING: 'true',
            ELECTRON_DISABLE_SECURITY_WARNINGS: 'true',
          },
          stdio: 'inherit',
        },
      )
        .on('close', code => process.exit(code))
        .on('error', spawnError => console.error(spawnError));
    },
  },
  node: {
    __dirname: false,
    __filename: false,
  },
});