cjs-shim

• Replaces fileURLToPath(import.meta.url) to __filename
• Replaces import.meta.filename to __filename
• Replaces import.meta.dirname to __dirname
• Replaces import.meta.resolve to require.resolve
• Replaces import.meta.env to process.env
• Replaces import.meta.main to require.main === module
• Replaces typeof import.meta to "undefined"
• Removes require = createRequire(import.meta.url)
• Removes global = globalThis

Usage

import { transform } from "cjs-shim";
import { replacements } from "cjs-shim/replacements";

transform(replacements, "input code", "file name");

Example

Input

import { createRequire } from "node:module";
import { fileURLToPath } from "node:url";

const require = createRequire(import.meta.url);

const global = globalThis,
  filename = import.meta.filename,
  dirname = import.meta.dirname;

filename === fileURLToPath(import.meta.url);
typeof import.meta === "undefined";

Output

import { createRequire } from "node:module";
import { fileURLToPath } from "node:url";

const filename = __filename,
  dirname = __filename;

filename === __filename;
"undefined" === "undefined";