fix(register): resolve .cjs/.cts file in esm package (#813)

packages/integrate-module/src/common.cjs

@@ -0,0 +1 @@
+module.exports.common = "common";

packages/integrate-module/src/common.d.cts

@@ -0,0 +1 @@
+export declare const common: string

packages/integrate-module/src/index.ts

@@ -14,6 +14,7 @@ import { foo } from './foo.mjs'
 import { bar } from './subdirectory/bar.mjs'
 import { baz } from './subdirectory/index.mjs'
 import { Component } from './component.js'
+import { common } from './common.cjs'
 import './js-module.mjs'
 
 const { foo: fooWithQuery } = await import(`./foo.mjs?q=${Date.now()}`)
@@ -62,3 +63,7 @@ await test('resolve simple-git', () => {
 await test('resolve local cjs module', () => {
   assert.equal(cjs.default(), 'default.default')
 })
+
+await test('resolve commonjs module', () => {
+  assert.equal(common, 'common')
+})

packages/register/esm.mts

@@ -1,4 +1,4 @@
-import { readFile } from 'fs/promises'
+import { readFile } from 'node:fs/promises'
 import {
   createRequire,
   type LoadFnOutput,
@@ -7,8 +7,8 @@ import {
   type ResolveHook,
   builtinModules,
 } from 'node:module'
-import { extname, join } from 'path'
-import { fileURLToPath, parse as parseUrl, pathToFileURL } from 'url'
+import { extname, join } from 'node:path'
+import { fileURLToPath, parse as parseUrl, pathToFileURL } from 'node:url'
 
 import debugFactory from 'debug'
 import { EnforceExtension, ResolverFactory } from 'oxc-resolver'
@@ -225,11 +225,11 @@ export const resolve: ResolveHook = async (specifier, context, nextResolve) => {
       ...context,
       url: url.href,
       format:
-        moduleType === 'module'
-          ? 'module'
-          : path.endsWith('cjs') || path.endsWith('cts') || moduleType === 'commonjs' || !moduleType
-            ? 'commonjs'
-            : 'module',
+        path.endsWith('cjs') || path.endsWith('cts') || moduleType === 'commonjs' || !moduleType
+          ? 'commonjs'
+          : moduleType === 'module'
+            ? 'module'
+            : 'commonjs',
     })
   }