Add basic ejabberd module

doesn't do much really, but still worth sharing i suppose

rattail_fabric2/ejabberd.py

@@ -0,0 +1,38 @@
+# -*- coding: utf-8; -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2020 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU General Public License as published by the Free Software
+#  Foundation, either version 3 of the License, or (at your option) any later
+#  version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+#  details.
+#
+#  You should have received a copy of the GNU General Public License along with
+#  Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+"""
+Fabric library for ejabberd XMPP server
+"""
+
+import re
+
+
+def get_node_name(c):
+    """
+    Returns the ejabberd node name for the current server.
+    """
+    result = c.sudo('ejabberdctl status')
+    match = re.match(r'^The node (\S+@\S+) is started with status: started',
+                     result.stdout)
+    if match:
+        return match.group(1)