Cache data sources

generate_tfl_client.py

@@ -20,10 +20,10 @@ def main() -> None:
     if not OPENAPI_SPEC.exists():
         raise FileNotFoundError(f"OpenAPI spec not found: {OPENAPI_SPEC}")
 
-    # Remove existing client if present
+    # Skip if client already exists
     if OUTPUT_PATH.exists():
-        print(f"Removing existing client at {OUTPUT_PATH}")
-        shutil.rmtree(OUTPUT_PATH)
+        print(f"TfL client already exists at {OUTPUT_PATH}, skipping")
+        return
 
     # Generate the client
     print(f"Generating client from {OPENAPI_SPEC}")