Rspackでバンドルを行う

bun init
bun install --dev @rspack/cli

@@ -18,5 +18,6 @@
     "types": [
       "bun-types" // add Bun global
     ]
-  }
+  },
+  "include": ["src/**/*"]
 }

// @ts-check

const isProduction = process.env.NODE_ENV === "production"

/** @type {import('@rspack/cli').Configuration} */
const config = {
  entry: "./src/index.ts",
  output: {
    filename: "bundle.js",
    path: "./dist/",
  },
  module: {
    rules: [
      {
        test: /\.ts$/,
        use: "builtin:swc-loader",
      },
    ],
  },
  devServer: { static: { directory: "./dist/" } },
  devtool: isProduction ? false : "source-map", // Production BuildのときにSource mapsを含めない
}

module.exports = config

bun run rspack build --mode production

bun run rspack serve

const rspack = require('@rspack/core');
module.exports = {
  plugins: [
    new rspack.DefinePlugin({
      'process.env.NODE_ENV': "'development'",
      TRUE: true,
      TRUE_STRING: 'true',
      UNDEFINED: undefined,
      UNDEFINED_STRING: 'undefined',
    }),
  ],
};