updated documentation with added edge case for sequential heuristic

Data/Heuristic/heuristic_parallel.py

@@ -10,6 +10,10 @@ selected_heuristic = "vuldigger2"
 
 
 def run_heuristic(mapping_chunk):
+    """
+    Runs the heuristic on a chunk of mappings
+    :param mapping_chunk: A list of mappings
+    """
     print(f"PID {os.getpid()} Starting heuristic range")
     db_repo = DBRepository()
     config_codes = get_config_codes_list()
@@ -64,7 +68,7 @@ def worker(queue_in):
 
 
 def calculate_chunk_size(mappings, num_cores):
-    # Use the same implementation as multiprocessing.Pool to calculate chunk size
+    """Uses the same implementation as multiprocessing.Pool to calculate chunk size"""
     chunk_size, extra = divmod(len(mappings), num_cores * 4)
     if extra:
         chunk_size += 1

Data/Heuristic/heuristic_sequential.py

@@ -46,6 +46,16 @@ def main():
                 confidence,
                 json.dumps(result_json),
             )
+        else:
+            # If no VCCs are found, we still want to update the mapping to indicate that we have checked it
+            db_repo.update_vcc_fixing_commit(
+                mapping["mapping_id"],
+                mapping["cve_id"],
+                mapping["vcc_sha"],
+                mapping["fixing_config_code"],
+                False,
+                json.dumps({})
+            )
 
 
 def init_heuristic(selected_heuristic, config_code):