webpack.config.js

const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const workboxPlugin = require("workbox-webpack-plugin");
const workboxConfig = require("./workbox-config.js")

const path = require("path");

const mode = process.env.NODE_ENV || "development";
const prod = mode === "production";

module.exports = {
  entry: {
    bundle: ["./src/main.js"]
  },
  resolve: {
    alias: {
      svelte: path.resolve("node_modules", "svelte")
    },
    extensions: [".mjs", ".js", ".svelte"],
    mainFields: ["svelte", "browser", "module", "main"]
  },
  output: {
    path: __dirname + "/public",
    filename: "[name].js",
    chunkFilename: "bundle.[name].js"
  },
  module: {
    rules: [
      {
        test: /\.svelte$/,
        use: {
          loader: "svelte-loader",
          options: {
            emitCss: true,
            hotReload: true,
            preprocess: require("svelte-preprocess")()
          }
        }
      },
      {
        test: /\.(sa|sc|c)ss$/,
        use: [
          // Creates `style` nodes from JS strings
					/**
					 * MiniCssExtractPlugin doesn't support HMR.
					 * For developing, use 'style-loader' instead.
					 * */
          prod ? MiniCssExtractPlugin.loader : "style-loader",
          "css-loader",
          "sass-loader"
        ]
      },
      {
        test: /\.(woff(2)?|ttf|eot|svg)(\?v=\d+\.\d+\.\d+)?$/,
        use: [
          {
            loader: "file-loader",
            options: {
              name: "[name].[ext]",
              outputPath: "fonts/"
            }
          }
        ]
      }
    ]
  },
  mode,
  plugins: [
    new MiniCssExtractPlugin({
      filename: "[name].css"
    }),
    new workboxPlugin.GenerateSW(workboxConfig)
  ],
  node: {
    fs: "empty"
  },
  devtool: prod ? false : "source-map"
};