ls-url: call get_cloud_fs() directly

Note: removes a spurious check on whether the target is a dvc file.

dvc/repo/ls_url.py

@@ -1,40 +1,15 @@
 from dvc.exceptions import URLMissingError
 from dvc.fs import get_cloud_fs
-from dvc.output import OutputIsStageFileError
 
 
-class Output:
-    def __init__(
-        self,
-        path,
-        fs_config=None,
-    ):
-        fs_config = fs_config or {}
-        fs_cls, _fs_config, fs_path = get_cloud_fs(None, url=path, **fs_config)
-        self.fs = fs_cls(**_fs_config)
-        _validate_output_path(path)
-        self.fs_path = _parse_path(self.fs, fs_path)
-
-
-def _parse_path(fs, fs_path):
-    return fs.path.abspath(fs.path.normpath(fs_path))
-
-
-def _validate_output_path(path):
-    from dvc.dvcfile import is_valid_filename
-
-    if is_valid_filename(path):
-        raise OutputIsStageFileError(path)
-
-
-def get_external_fs(url, fs_config=None):
-    out = Output(url, fs_config)
-    return out.fs, out.fs_path
+def parse_external_url(url):
+    fs_cls, fs_config, fs_path = get_cloud_fs(None, url=url)
+    fs = fs_cls(**fs_config)
+    return fs, fs.path.abspath(fs.path.normpath(fs_path))
 
 
 def ls_url(url):
-    fs, fs_path = get_external_fs(url)
-
+    fs, fs_path = parse_external_url(url)
     try:
         info = fs.info(fs_path)
     except FileNotFoundError:

tests/func/test_ls_url.py

@@ -12,7 +12,7 @@ def match_files(entries, expected):
     assert entries_content == expected_content
 
 
-@pytest.mark.parametrize("fname", ["foo", "dir/foo"])
+@pytest.mark.parametrize("fname", ["foo", "foo.dvc", "dir/foo"])
 def test_file(tmp_dir, fname):
     tmp_dir.gen({fname: "foo contents"})