issue #342: forward _create_control_path() to SSH plugin.

network_cli connection type loads the "ssh" (mitogen_ssh) plugin and
expects a private method to exist.

ansible_mitogen/plugins/connection/mitogen_ssh.py

@@ -42,6 +42,8 @@ DOCUMENTATION = """
     options:
 """
 
+import ansible.plugins.connection.ssh
+
 try:
     import ansible_mitogen.connection
 except ImportError:
@@ -54,3 +56,10 @@ import ansible_mitogen.connection
 
 class Connection(ansible_mitogen.connection.Connection):
     transport = 'ssh'
+    vanilla_class = ansible.plugins.connection.ssh.Connection
+
+    @staticmethod
+    def _create_control_path(*args, **kwargs):
+        """Forward _create_control_path() to the implementation in ssh.py."""
+        # https://github.com/dw/mitogen/issues/342
+        return Connection.vanilla_class._create_control_path(*args, **kwargs)

docs/changelog.rst

@@ -185,6 +185,9 @@ Core Library
   could spuriously wake up due to ignoring an error bit set on events returned
   by the kernel, manifesting as a failure to read from an unrelated descriptor.
 
+* `#342 <https://github.com/dw/mitogen/issues/342>`_: The ``network_cli``
+  connection type would fail due to a missing internal SSH plugin method.
+
 * Standard IO forwarding accidentally configured the replacement ``stdout`` and
   ``stderr`` write descriptors as non-blocking, causing subprocesses that
   generate more output than kernel buffer space existed to throw errors. The
@@ -210,6 +213,7 @@ the bug reports and pull requests in this release contributed by
 `Ayaz Ahmed Khan <https://github.com/ayaz>`_,
 `Colin McCarthy <https://github.com/colin-mccarthy>`_,
 `Dan Quackenbush <https://github.com/danquack>`_,
+`dsgnr <https://github.com/dsgnr>`_,
 `Duane Zamrok <https://github.com/dewthefifth>`_,
 `falbanese <https://github.com/falbanese>`_,
 `Gonzalo Servat <https://github.com/gservat>`_,