fix: CJS require('.') resolution (#108)

Author: timfish

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)) {

test/fixtures/index.js

@@ -0,0 +1 @@
+module.exports.foo = 'something'

test/fixtures/require-root.js

@@ -0,0 +1 @@
+module.exports = { ...require('.') }

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')