Bundled Output Missing core.cjs File When Using esbuild with zx Library

[shetz163]

🐛 Bug Report

Problem Description

I encountered an issue when using esbuild to bundle a project that imports the zx library. The bundled output file fails to run due to the absence of the core.cjs file, which is required by the zx library.

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Steps to Reproduce

1. Create a TypeScript file that imports the zx library.
2. Use esbuild to bundle the file.
3. Attempt to run the bundled JavaScript output.

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Expected Behavior

The bundled JavaScript file should run without errors, and the functionality from the zx library should work as expected.

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Actual Behavior

After bundling with esbuild, the generated JavaScript file does not include the necessary core.cjs file, leading to runtime errors.

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Reproduction Files

• Original TypeScript file:

import { $ } from 'zx/core';
const main = async () => {
  const list = ['5', '10', '15', '20', '25'];
  for (const item of list) {
    console.log(`${item} start`);
    await $`sleep ${item}`;
    console.log(`${item} end`);
  }
}
main();

• Bundled JavaScript file:

"use strict";

// node_modules/.pnpm/[email protected]/node_modules/zx/build/deno.js
var import_node_module = require("node:module");
var import_meta = {};
var require2 = (0, import_node_module.createRequire)(import_meta.url);
var __filename = new URL(import_meta.url).pathname;
var __dirname = new URL(".", import_meta.url).pathname;
if (globalThis.Deno) {
  globalThis.require = require2;
  globalThis.__filename = __filename;
  globalThis.__dirname = __dirname;
}

// node_modules/.pnpm/[email protected]/node_modules/zx/build/core.js
var {
  $,
  ProcessOutput,
  ProcessPromise,
  cd,
  defaults,
  kill,
  log,
  syncProcessCwd,
  useBash,
  usePowerShell,
  usePwsh,
  within
} = require2("./core.cjs");

// test.ts
var main = async () => {
  const list = ["5", "10", "15", "20", "25"];
  for (const item of list) {
    console.log(`${item} start`);
    await $`sleep ${item}`;
    console.log(`${item} end`);
  }
};
main();

---

Build Command

The command used for bundling:
esbuild ./test.ts --bundle --outfile=out.js --platform=node --target=node18

Specifications

• zx version: 8.1.6
• Platform: macos
• Runtime: node

[antongolub]

I'm afraid, the issue is on esbuild's side: evanw/esbuild#1828

[antongolub]

@shetz163,

You may try smth like this: --alias:zx/core=./node_modules/zx/build/core.cjs

[shetz163]

it worked perfectly, thank you