Dont use default export

Author: jamesdaniels

packages/util/postinstall.js

@@ -80,8 +80,11 @@ getConfigFromEnv().then((partialConfig) => {
     const defaults = (config || emulatorHosts) ? { config, emulatorHosts } : undefined;
 
     return Promise.all([
-        writeFile(join(__dirname, "dist", "autoinit_env.js"), `module.exports = ${JSON.stringify(defaults)}`),
-        writeFile(join(__dirname, "dist", "autoinit_env.mjs"), `export default ${JSON.stringify(defaults)}`),
+        writeFile(join(__dirname, "dist", "autoinit_env.js"), `'use strict';
+Object.defineProperty(exports, '__esModule', { value: true });
+exports.postinstallDefaults = ${JSON.stringify(defaults)};`),
+        writeFile(join(__dirname, "dist", "autoinit_env.mjs"), `const postinstallDefaults = ${JSON.stringify(defaults)};
+export { postinstallDefaults };`),
     ]);
 
 }).then(

packages/util/rollup.config.js

@@ -85,7 +85,6 @@ const autoinitBuild = [
     output: {
       file: './dist/autoinit_env.js',
       format: 'cjs',
-      exports: 'default',
     },
     plugins: buildPlugins,
   },

packages/util/src/autoinit_env.ts

@@ -1,6 +1,4 @@
 import type { FirebaseDefaults } from "./defaults";
 
 // This value is retrieved and hardcoded by the NPM postinstall script
-const firebaseDefaultConfig: FirebaseDefaults|undefined = undefined;
-
-export default firebaseDefaultConfig;
+export const postinstallDefaults: FirebaseDefaults|undefined = undefined;

packages/util/src/defaults.ts

@@ -17,7 +17,7 @@
 
 import { base64Decode } from './crypt';
 import { getGlobal } from './global';
-import postinstallDefaults from "./autoinit_env";
+import { postinstallDefaults } from "./autoinit_env";
 
 /**
  * Keys for experimental properties on the `FirebaseDefaults` object.