now modules can implement with_items list globbing w/o updating

hardcoded lists in ansible code, just add WITH_ITEMS_USES_LIST in a
comment anywhere, and of course, support recieving params as list.

Signed-off-by: Brian Coca <briancoca+dev@gmail.com>

lib/ansible/runner/__init__.py

@@ -163,6 +163,7 @@ class Runner(object):
         self.is_playbook      = is_playbook
         self.environment      = environment
         self.complex_args     = complex_args
+        self.module_with_list = False
 
         self.callbacks.runner = self
 
@@ -405,8 +406,8 @@ class Runner(object):
             if type(items) != list:
                 raise errors.AnsibleError("lookup plugins have to return a list: %r" % items)
 
-            if len(items) and utils.is_list_of_strings(items) and self.module_name in [ 'apt', 'yum', 'pkgng' ]:
-                # hack for apt, yum, and pkgng so that with_items maps back into a single module call
+            if len(items) and utils.is_list_of_strings(items) and self.module_with_list:
+                # with_items maps back into a single module call, making modules that support this more efficient
                 inject['item'] = ",".join(items)
                 items = None
 
@@ -711,6 +712,9 @@ class Runner(object):
             if 'WANT_JSON' in module_data:
                 module_style = 'non_native_want_json'
 
+            if 'WITH_ITEMS_USES_LIST' in module_data:
+                self.module_with_list = True
+
             complex_args_json = utils.jsonify(complex_args)
             # We force conversion of module_args to str because module_common calls shlex.split,
             # a standard library function that incorrectly handles Unicode input before Python 2.7.3.

library/packaging/apt

@@ -1,5 +1,6 @@
 #!/usr/bin/python
 # -*- coding: utf-8 -*-
+# WITH_ITEMS_USES_LIST
 
 # (c) 2012, Flowroute LLC
 # Written by Matthew Williams <matthew@flowroute.com>

library/packaging/pkgng

@@ -1,5 +1,6 @@
 #!/usr/bin/python
 # -*- coding: utf-8 -*-
+# WITH_ITEMS_USES_LIST
 
 # (c) 2013, bleader
 # Written by bleader <bleader@ratonland.org>

library/packaging/yum

@@ -1,5 +1,6 @@
 #!/usr/bin/python -tt
 # -*- coding: utf-8 -*-
+# WITH_ITEMS_USES_LIST
 
 # (c) 2012, Red Hat, Inc
 # Written by Seth Vidal <skvidal at fedoraproject.org>