Only make dst dir when src req is satisfied

src/uwtools/tests/utils/test_tasks.py

@@ -164,12 +164,12 @@ def test_tasks_filecopy_source_local(src, ok):
             with patch.object(tasks, "file", exists):
                 with patch.object(tasks, "copy") as copy:
                     tasks.filecopy(src=src, dst=dst)
+            mkdir.assert_called_once_with(parents=True, exist_ok=True)
             copy.assert_called_once_with(Path(src), Path(dst))
         else:
             with raises(UWConfigError) as e:
                 tasks.filecopy(src=src, dst=dst)
             assert str(e.value) == "Support for scheme 'foo' not implemented"
-    mkdir.assert_called_once_with(parents=True, exist_ok=True)
 
 
 def test_tasks_symlink_simple(tmp_path):

src/uwtools/utils/tasks.py

@@ -90,15 +90,16 @@ def filecopy(src: Union[Path, str], dst: Union[Path, str]):
     yield "Copy %s -> %s" % (src, dst)
     yield asset(Path(dst), Path(dst).is_file)
     dst = Path(dst)  # currently no support for remote destinations
-    dst.parent.mkdir(parents=True, exist_ok=True)
     scheme = urlparse(str(src)).scheme
     if scheme in SCHEMES.local:
         src = Path(src)
         yield file(src)
+        dst.parent.mkdir(parents=True, exist_ok=True)
         copy(src, dst)
     elif scheme in SCHEMES.http:
         src = str(src)
         yield existing(src)
+        dst.parent.mkdir(parents=True, exist_ok=True)
         response = requests.get(src, allow_redirects=True, timeout=3)
         if (code := response.status_code) == 200:
             with open(dst, "wb") as f: