webpack.config.ts

import { execSync } from "child_process";
import * as path from "path";
import { Configuration } from "webpack";
import { WebpackCompilerPlugin } from "webpack-compiler-plugin";
import * as nodeExternals from "webpack-node-externals";

const configuration: Configuration = {
  devtool: "source-map",
  entry: "./src",
  mode: "production",
  module: {
    rules: [
      {
        exclude: /(node_modules|bower_components)/,
        test: /\.tsx?$/,
        use: [
          {
            loader: "babel-loader",
            options: {
              presets: ["@babel/preset-typescript"],
            },
          },
          {
            loader: "ts-loader",
            options: {
              configFile: "tsconfig.prod.json",
            },
          },
        ],
      },
    ],
  },
  output: {
    filename: "main.js",
    libraryTarget: "commonjs",
    path: path.resolve(__dirname, "lib"),
  },
  plugins: [
    new WebpackCompilerPlugin({
      name: "script-build-types",
      listeners: {
        compileStart: (): void => {
          try {
            execSync("pnpm build-types");
          } catch (e) {
            // eslint-disable-next-line no-console
            console.error(e);
          }
        },
      },
    }),
  ],
  resolve: {
    extensions: [".js", ".ts", ".jsx", ".tsx"],
    modules: [path.resolve("./src"), path.resolve("./node_modules")],
  },
  watchOptions: {
    ignored: /node_modules|built|lib/,
  },
  externals: [nodeExternals()] as Configuration["externals"],
};

export default configuration;