From e0d92df3210237476bc6937f4dab05272435ecce Mon Sep 17 00:00:00 2001
From: Tim Fish <tim@timfish.uk>
Date: Tue, 18 Jun 2024 15:52:33 +0200
Subject: [PATCH] fix: CJS `require('.')` resolution

---
 lib/get-exports.js             |  3 +++
 test/fixtures/index.js         |  1 +
 test/fixtures/require-root.js  |  1 +
 test/hook/require-root-cjs.mjs | 12 ++++++++++++
 4 files changed, 17 insertions(+)
 create mode 100644 test/fixtures/index.js
 create mode 100644 test/fixtures/require-root.js
 create mode 100644 test/hook/require-root-cjs.mjs

diff --git a/lib/get-exports.js b/lib/get-exports.js
index 9a78e8c..de88a37 100644
--- a/lib/get-exports.js
+++ b/lib/get-exports.js
@@ -43,6 +43,9 @@ async function getCjsExports (url, context, parentLoad, source) {
           full.add(each)
         }
       } else {
+        if (re === '.') {
+          re = './'
+        }
         // Resolve the re-exported module relative to the current module.
         const newUrl = pathToFileURL(require.resolve(re, { paths: [dirname(fileURLToPath(url))] })).href
         for (const each of await getExports(newUrl, context, parentLoad)) {
diff --git a/test/fixtures/index.js b/test/fixtures/index.js
new file mode 100644
index 0000000..a115263
--- /dev/null
+++ b/test/fixtures/index.js
@@ -0,0 +1 @@
+module.exports.foo = 'something'
diff --git a/test/fixtures/require-root.js b/test/fixtures/require-root.js
new file mode 100644
index 0000000..8b4cc65
--- /dev/null
+++ b/test/fixtures/require-root.js
@@ -0,0 +1 @@
+module.exports = { ...require('.') }
diff --git a/test/hook/require-root-cjs.mjs b/test/hook/require-root-cjs.mjs
new file mode 100644
index 0000000..9f99909
--- /dev/null
+++ b/test/hook/require-root-cjs.mjs
@@ -0,0 +1,12 @@
+import Hook from '../../index.js'
+import { foo } from '../fixtures/require-root.js'
+import { strictEqual } from 'assert'
+
+Hook((exports, name) => {
+  if (name.endsWith('require-root.js')) {
+    strictEqual(exports.foo, 'something')
+    exports.foo += '-wrap'
+  }
+})
+
+strictEqual(foo, 'something-wrap')