From e3d738f38500be92c68335329b3fc635197f3de1 Mon Sep 17 00:00:00 2001
From: reaper <ahoy@barelyhuman.dev>
Date: Mon, 5 Dec 2022 17:58:51 +0530
Subject: [PATCH] Fix: Programmatic `module.exports` addition for named and
 default exports in CJS (#1460)

* experimental export patch

patches the base index file to export the default as classic
node cjs module

* refactor

* add semi

Co-authored-by: daishi <daishi@axlight.com>
---
 rollup.config.js | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/rollup.config.js b/rollup.config.js
index cd69816e..b1e5e386 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -75,10 +75,16 @@ function createESMConfig(input, output) {
   }
 }
 
-function createCommonJSConfig(input, output) {
+function createCommonJSConfig(input, output, options) {
   return {
     input,
-    output: { file: `${output}.js`, format: 'cjs' },
+    output: {
+      file: `${output}.js`,
+      format: 'cjs',
+      outro: options.addModuleExport
+        ? 'module.exports = exports.default; Object.assign(exports.default, exports);'
+        : '',
+    },
     external,
     plugins: [
       alias({
@@ -166,7 +172,9 @@ module.exports = function (args) {
   }
   return [
     ...(c === 'index' ? [createDeclarationConfig(`src/${c}.ts`, 'dist')] : []),
-    createCommonJSConfig(`src/${c}.ts`, `dist/${c}`),
+    createCommonJSConfig(`src/${c}.ts`, `dist/${c}`, {
+      addModuleExport: c === 'index',
+    }),
     createESMConfig(`src/${c}.ts`, `dist/esm/${c}.js`),
     createESMConfig(`src/${c}.ts`, `dist/esm/${c}.mjs`),
     createUMDConfig(`src/${c}.ts`, `dist/umd/${c}`, 'development'),