Skip directories within ~/.ssh/config.d

close #784

Only parse files within the ~/.ssh/config.d directory, ignoring
subdirectories. This conforms to the behaviour of ssh implementations
that ignore `config.d` subdirs.

Author: jacopo-exact

asyncssh/config.py

@@ -146,7 +146,7 @@ def _include(self, option: str, args: List[str]) -> None:
             else:
                 path = self._default_path
 
-            paths = list(path.glob(pattern))
+            paths = list(p for p in path.glob(pattern) if p.is_file())
 
             if not paths:
                 logger.debug1(f'Config pattern "{pattern}" matched no files')