address comments

Signed-off-by: KumoLiu <[email protected]>

monai/bundle/scripts.py

@@ -1255,7 +1255,6 @@ def ckpt_export(
             e.g. ``--_meta#network_data_format#inputs#image#num_channels 3``.
 
     """
-    bundle_root = override.pop("bundle_root", os.getcwd())
     _args = update_kwargs(
         args=args_file,
         net_id=net_id,
@@ -1267,7 +1266,6 @@ def ckpt_export(
         use_trace=use_trace,
         input_shape=input_shape,
         converter_kwargs=converter_kwargs,
-        bundle_root=bundle_root,
         **override,
     )
     _log_input_summary(tag="ckpt_export", args=_args)
@@ -1294,20 +1292,25 @@ def ckpt_export(
         converter_kwargs={},
     )
 
-    parser = ConfigParser()
+    if "bundle_root" in _args:
+        bundle_root = _args["bundle_root"]
+    else:
+        bundle_root = os.getcwd()
 
+    parser = ConfigParser()
     parser.read_config(f=config_file_)
+    meta_file_ = os.path.join(bundle_root, "configs", "metadata.json") if meta_file_ is None else meta_file_
+    if os.path.exists(meta_file_):
+        parser.read_meta(f=meta_file_)
+
     # the rest key-values in the _args are to override config content
     for k, v in _args.items():
         parser[k] = v
 
-    meta_file_ = os.path.join(bundle_root, "configs", "metadata.json") if meta_file_ is None else meta_file_
     filepath_ = os.path.join(bundle_root, "models", "model.ts") if filepath_ is None else filepath_
     ckpt_file_ = os.path.join(bundle_root, "models", "model.pt") if ckpt_file_ is None else ckpt_file_
     if not os.path.exists(ckpt_file_):
         raise FileNotFoundError(f'Checkpoint file "{ckpt_file_}" not found, please specify it in argument "ckpt_file".')
-    if os.path.exists(meta_file_):
-        parser.read_meta(f=meta_file_)
 
     net_id_ = "network_def" if net_id_ is None else net_id_
     try: