Getting started

Installation

Prerequisites

• Node.js version 18 or higher.
• A package manager: e.g. npm, pnpm, ...

npm

$ npm add -D @ogs-gmbh/rolldown-plugin-extensions

pnpm

$ pnpm add -D @ogs-gmbh/rolldown-plugin-extensions

yarn

$ yarn add -D @ogs-gmbh/rolldown-plugin-extensions

bun

$ bun add -D @ogs-gmbh/rolldown-plugin-extensions

Usage

rolldown-plugin-extensions can be integrated with either tsdown or Rolldown. Here's an example showing the usage of this plugin with tsdown. You can get a deeper understanding about this plugin by taking a look into the reference.

tsdown.config.ts

import { defineConfig } from "tsdown";
import { extensionsPlugin } from "@ogs-gmbh/rolldown-plugin-extensions";

export default defineConfig({
  entry: "src/**/*.ts",
  dts: true,
  outDir: "dist/main",
  unbundle: true,
  plugins: [
    extensionsPlugin({
      defaultExtensions: ".mjs",
      extensions: {
        ".js": ".mjs",
        ".ts": ".mts"
      }
    })
  ]
});

If a file gets referenced by any import or export statement, .mjs will be added to import targets, that doesn't include a extension. Files with .js and .ts extensions will be manipulated to have .mjs and .mts extensions instead.