webpack.common.js

const path = require("path");
// eslint-disable-next-line import/no-extraneous-dependencies
const HtmlWebpackPlugin = require("html-webpack-plugin");
const webpack = require("webpack");

module.exports = {
  entry: {
    index: path.resolve(__dirname, "src/index.js"),
  },
  output: {
    filename: '[name].[contenthash].bundle.js',
    path: path.resolve(__dirname, 'dist'),
    clean: {
      keep: /\.git/,
    },
  },
  optimization: {
    moduleIds: 'deterministic',
    runtimeChunk: 'single',
    splitChunks: {
      cacheGroups: {
        vendor: {
          test: /[\\/]node_modules[\\/]/,
          name(module) {
            // get the name. E.g. node_modules/packageName/not/this/part.js
            // or node_modules/packageName
            const packageName = module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/)[1];

            // npm package names are URL-safe, but some servers don't like @ symbols
            return `npm.${packageName.replace('@', '')}`;
          },
          chunks: 'all',
        },
      },
    },
  },
  plugins: [
    new HtmlWebpackPlugin({
      title: "Rapid Online Assessment of Reading - MEP",
    }),
    new webpack.ids.HashedModuleIdsPlugin(), // so that file hashes don't change unexpectedly
  ],
  module: {
    rules: [
      {
        test: /\.css$/i,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /\.(png|svg|jpg|jpeg|gif)$/i,
        type: "asset/resource",
        generator: {
          filename: "img/[name][ext]",
        },
      },
      {
        test: /\.mp3$/,
        use: [
          {
            loader: "file-loader",
            options: {
              name: "[name].[ext]",
              outputPath: "audio",
            },
          },
        ],
      },
      {
        test: /\.mp4$/,
        use: [
          {
            loader: "file-loader",
            options: {
              name: "[name].[ext]",
              outputPath: "video",
            },
          },
        ],
      },
      {
        test: /\.csv$/,
        use: [
          {
            loader: "file-loader",
            options: {
              name: "[name].[ext]",
              outputPath: "corpora",
            },
          },
        ],
      },
    ],
  },
  resolve: {
    alias: {
      timers: false,
    },
  },
  experiments: {
    topLevelAwait: true,
  },
};