webpack.config.prod.js

// For info about this file refer to webpack and webpack-hot-middleware documentation
// For info on how we're generating bundles with hashed filenames for cache busting: https://medium.com/@okonetchnikov/long-term-caching-of-static-assets-with-webpack-1ecb139adb95#.w99i89nsz
import webpack from "webpack";
import MiniCssExtractPlugin from "mini-css-extract-plugin";
import HtmlWebpackPlugin from "html-webpack-plugin";
import path from "path";

const GLOBALS = {
  "process.env.NODE_ENV": JSON.stringify("production"),
  "process.env.DOMAIN": JSON.stringify(process.env.DOMAIN),
  "process.env.SENTRY_DSN_FRONTEND": JSON.stringify(
    process.env.SENTRY_DSN_FRONTEND
  ),
  "process.env.DEPLOYMENT_NAME": JSON.stringify(process.env.DEPLOYMENT_NAME),
  "process.env.FORCE_HTTPS": JSON.stringify(process.env.FORCE_HTTPS),
  "process.env.USER_SCOREBOARD_URL": JSON.stringify(
    process.env.USER_SCOREBOARD_URL
  ),
  "process.env.MIXPANEL_ID": JSON.stringify(process.env.MIXPANEL_ID),
  __DEV__: false,
};

export default {
  resolve: {
    extensions: ["*", ".js", ".jsx", ".json"],
    alias: {
      Components: path.resolve(__dirname, "client/components"),
    },
  },
  mode: "production",
  devtool: "source-map", // more info:https://webpack.js.org/guides/production/#source-mapping and https://webpack.js.org/configuration/devtool/
  entry: ["babel-polyfill", path.resolve(__dirname, "client/index")],
  target: "web",
  output: {
    path: path.resolve(__dirname, "dist/client"),
    publicPath: "/",
    filename: "[name].[chunkhash].js",
  },
  plugins: [
    // Tells React to build in prod mode. https://facebook.github.io/react/downloads.html
    new webpack.DefinePlugin(GLOBALS),

    // Generate an external css file with a hash in the filename
    new MiniCssExtractPlugin({
      filename: "[name].[hash].css",
      chunkFilename: "[id].[hash].css",
    }),
    // Generate HTML file that contains references to generated bundles. See here for how this works: https://github.com/ampedandwired/html-webpack-plugin#basic-usage
    new HtmlWebpackPlugin({
      template: "client/index.ejs",
      favicon: "client/favicon.ico",
      minify: {
        removeComments: true,
        collapseWhitespace: true,
        removeRedundantAttributes: true,
        useShortDoctype: true,
        removeEmptyAttributes: true,
        removeStyleLinkTypeAttributes: true,
        keepClosingSlash: true,
        minifyJS: true,
        minifyCSS: true,
        minifyURLs: true,
      },
      inject: true,
      templateParams: {
        userScoreboardUrl: process.env.USER_SCOREBOARD_URL,
        sentryConfigUrl: process.env.SENTRY_DSN_FRONTEND || "",
        deploymentName: process.env.DEPLOYMENT_NAME,
        googleAnalyticsId: process.env.GOOGLE_ANALYTICS_ID,
        googleAdsId: process.env.GOOGLE_ADS_ID,
        mixpanelId: process.env.MIXPANEL_ID,
      },
    }),
  ],
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: ["babel-loader"],
      },
      {
        test: /\.eot(\?v=\d+.\d+.\d+)?$/,
        use: [
          {
            loader: "url-loader",
            options: {
              name: "[name].[ext]",
            },
          },
        ],
      },
      {
        test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/,
        use: [
          {
            loader: "url-loader",
            options: {
              limit: 10000,
              mimetype: "application/font-woff",
              name: "[name].[ext]",
            },
          },
        ],
      },
      {
        test: /\.[ot]tf(\?v=\d+.\d+.\d+)?$/,
        use: [
          {
            loader: "url-loader",
            options: {
              limit: 10000,
              mimetype: "application/octet-stream",
              name: "[name].[ext]",
            },
          },
        ],
      },
      {
        test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
        use: [
          {
            loader: "url-loader",
            options: {
              limit: 10000,
              mimetype: "image/svg+xml",
              name: "[name].[ext]",
            },
          },
        ],
      },
      {
        test: /\.(jpe?g|png|gif|ico)$/i,
        use: [
          {
            loader: "file-loader",
            options: {
              name: "[name].[ext]",
            },
          },
        ],
      },
      {
        test: /(\.css|\.scss|\.sass|\.less)$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              reloadAll: true,
            },
          },
          {
            loader: "css-loader",
            options: {
              sourceMap: true,
            },
          },
          {
            loader: "postcss-loader",
            options: {
              plugins: () => [require("autoprefixer")],
              sourceMap: true,
            },
          },
          {
            loader: "less-loader",
            options: {
              lessOptions: {
                includePaths: [path.resolve(__dirname, "client")],
              },
              sourceMap: true,
            },
          },
          {
            loader: "sass-loader",
            options: {
              sassOptions: {
                includePaths: [path.resolve(__dirname, "client")],
              },
              sourceMap: true,
            },
          },
        ],
      },
    ],
  },
};