add support to create mailing lists

defaults/main.yml

@@ -17,3 +17,6 @@ mailman:
     session_timeout: 3600
   archiver:
     key: "{{ lookup('password', '/dev/null length=128') }}"
+  list_defaults:
+    settings: {}
+  lists: {}

library/mailman_list.py

@@ -45,6 +45,9 @@ def run_module():
 		ml = domain.create_list(addr_local)
 
 	ml_settings = ml.settings
+	if result['changed']:
+		result['diff']['before'] = None
+	else:
 		result['diff']['before'] = dict(ml_settings)
 
 	for i in module.params['settings']:

tasks/list.yml

@@ -0,0 +1,10 @@
+- set_fact:
+    current_list: "{{ {}|combine(mailman.list_defaults, {'name': listname}, mailman.lists[listname], recursive=True) }}"
+
+- name: "setup mailing list ( {{ current_list.name }} )"
+  mailman_list:
+    api_url: "http://{{ mailman.api.hostname }}:{{ mailman.api.port }}/{{ mailman.api.version }}"
+    api_user: "{{ mailman.api.admin.name }}"
+    api_password: "{{ mailman.api.admin.pw }}"
+    name: "{{ current_list.name }}"
+    settings: "{{ current_list.settings }}"

tasks/main.yml

@@ -53,3 +53,9 @@
 
 - name: flush handlers to get mailman ready
   meta: flush_handlers
+
+- name: setup mailing lists
+  include_tasks: list.yml
+  loop: "{{ mailman.lists.keys()|list }}"
+  loop_control:
+    loop_var: listname