fix: chdir back to the starting directory before exit

src/index.ts

@@ -5,9 +5,6 @@ import { parse } from './parser';
 
 import type { AsyncAPIObject } from './spec-types';
 
-// remember the directory where execution of the program started
-export const originDir = String(process.env.PWD);
-
 /**
  *
  * @param {string | string[]} files One or more relative/absolute paths to
@@ -84,6 +81,9 @@ export default async function bundle(
   files: string[] | string,
   options: any = {}
 ) {
+  // remember the directory where execution of the program started
+  const originDir = String(process.env.PWD);
+
   // if one string was passed, convert it to an array
   if (typeof files === 'string') {
     files = Array.from(files.split(' '));
@@ -119,7 +119,7 @@ export default async function bundle(
 
   // return to the starting directory before finishing the execution
   if (options.baseDir) {
-    process.chdir(originDir);    
+    process.chdir(originDir);
   }
 
   return new Document(resolvedJsons, options.base);