PDP-919: Ignore whitespaces (#33)

Author: SameeraPriyathamTadikonda

github-app/app.py

@@ -316,10 +316,10 @@ def download_files(self, file_paths):
             clone_res = subprocess.run(['git','clone','--depth','1','--branch', self.pr_data['base']['ref'], auth_clone_url, base_clone_dir], capture_output=True, text=True, timeout=60)
             if clone_res.returncode != 0:
                 raise Exception(f"Git clone failed: {clone_res.stderr}")
-            # First try normal apply for new files, then 3way for modifications
-            normal_apply_res = subprocess.run(['git','apply','--ignore-whitespace', diff_path], cwd=base_clone_dir, capture_output=True, text=True, timeout=30)
+            # First try apply with whitespace fix, then 3way for modifications  
+            normal_apply_res = subprocess.run(['git','apply','--whitespace=fix', diff_path], cwd=base_clone_dir, capture_output=True, text=True, timeout=30)
             if normal_apply_res.returncode != 0:
-                logger.info(f"Normal git apply failed, trying --3way: {normal_apply_res.stderr[:200]}")
+                logger.info(f"Git apply failed, trying --3way: {normal_apply_res.stderr[:200]}")
                 threeway_apply_res = subprocess.run(['git','apply','--3way','--ignore-whitespace', diff_path], cwd=base_clone_dir, capture_output=True, text=True, timeout=30)
                 apply_res = threeway_apply_res
             else: