webdav: consider path to be root

Remove _strip_protocol, moves to get_cloud_fs loading stage.

dvc/fs/__init__.py

@@ -114,7 +114,12 @@ def get_cloud_fs(repo, **kwargs):
         remote_conf["gdrive_credentials_tmp_dir"] = repo.tmp_dir
 
     url = remote_conf.pop("url")
-    fs_path = cls._strip_protocol(url)  # pylint:disable=protected-access
+    if issubclass(cls, WebDAVFileSystem):
+        # For WebDAVFileSystem, provided url is the base path itself, so it
+        # should be treated as being a root path.
+        fs_path = cls.root_marker
+    else:
+        fs_path = cls._strip_protocol(url)  # pylint:disable=protected-access
 
     extras = cls._get_kwargs_from_urls(url)  # pylint:disable=protected-access
     conf = {**extras, **remote_conf}  # remote config takes priority

dvc/fs/webdav.py

@@ -13,6 +13,7 @@ logger = logging.getLogger(__name__)
 
 class WebDAVFileSystem(FSSpecWrapper):  # pylint:disable=abstract-method
     scheme = Schemes.WEBDAV
+    root_marker = ""
     CAN_TRAVERSE = True
     TRAVERSE_PREFIX_LEN = 2
     REQUIRES = {"webdav4": "webdav4"}
@@ -33,14 +34,6 @@ class WebDAVFileSystem(FSSpecWrapper):  # pylint:disable=abstract-method
             }
         )
 
-    @classmethod
-    def _strip_protocol(cls, path: str) -> str:
-        """
-        For WebDAVFileSystem, provided url is the base path itself, so it
-        should be treated as being a root path.
-        """
-        return ""
-
     def unstrip_protocol(self, path: str) -> str:
         return self.fs_args["base_url"] + "/" + path