nodedeno

Script to convert Node libraries to Deno

• Transform CJS to ESM
• Transform TypeScript to JavaScript
• Any dependency is replaced with ./deps.js
• Replace some Node global object like process.env or __dirname to Deno equivalents

Example:

const dep = require("my-dependency");
const otherModule = require("./other-module");

module.exports = function foo() {};
module.exports.otherModule = function bar() {};

Is converted to:

import { dep } from "./deps.js";
import otherModule from "./other-module.js";

export default function foo() {};
export const otherModule = function bar() {};

Usage:

import { convert } from "https://deno.land/x/nodedeno/mod.js"

convert({
  from: "node-library/lib",
  to: "deno-library/lib",
  depsFile: "deps.js",
  ignoredFiles: [
    "ignored-file-1.js",
    "ignored-file-2.js",
  ],
  modules: {
    "module-name": "./new-module.js"
  },
  onConvert(file, code) {
    // Here you can make additional changes to the code or filename
    return [file, code];
  }
})

Options

• from The directory of the source files
• to The destination of the converted files
• depsFile The dependencies file that will be copied in the destination folder (and renamed to deps.js
• ignoredFiles An array of files that won’t be copied
• onConvert A callback that will be invoked for every file copied. It allows to make additional changes
• modules An object to customize some modules resolution.
• transpile Set true to convert TypeScript files to Javascript.

Used in

• postcss-deno