feat(dataset): use posix mv semantics when adding with destination

renku/cli/dataset.py

@@ -212,8 +212,7 @@
 
 You can use ``--destination`` or ``-d`` flag to set the location where the new
 data is copied to. This location be will under the dataset's data directory and
-will be created if does not exists. You will get an error message if the
-destination exists and is a file.
+will be created if does not exists.
 
 .. code-block:: console
 

renku/core/commands/dataset.py

@@ -567,7 +567,7 @@ def _import_dataset(
         sources = []
 
         if record.datadir_exists:
-            sources = [f"{dataset.data_dir}/**"]
+            sources = [f"{dataset.data_dir}/*"]
 
         for file in dataset.files:
             try:

renku/core/errors.py

@@ -18,7 +18,8 @@
 """Renku exceptions."""
 
 import os
-from typing import List
+from pathlib import Path
+from typing import List, Union
 
 import click
 
@@ -106,7 +107,7 @@ def __init__(self, repository):
 class ProtectedFiles(RenkuException):
     """Raise when trying to work with protected files."""
 
-    def __init__(self, ignored):
+    def __init__(self, ignored: List[Union[Path, str]]):
         """Build a custom message."""
         super(ProtectedFiles, self).__init__(
             "The following paths are protected as part of renku:"