Expose the playbook to callback plugins

lib/ansible/callbacks.py

@@ -108,6 +108,12 @@ def log_unflock(runner):
         except OSError:
             pass
 
+def set_playbook(callback, playbook):
+    ''' used to notify callback plugins of playbook context '''
+    callback.playbook = playbook
+    for callback_plugin in callback_plugins:
+        callback_plugin.playbook = playbook
+
 def set_play(callback, play):
     ''' used to notify callback plugins of context '''
     callback.play = play

lib/ansible/playbook/__init__.py

@@ -148,6 +148,7 @@ class PlayBook(object):
         self.filename = playbook
         (self.playbook, self.play_basedirs) = self._load_playbook_from_file(playbook, vars)
         ansible.callbacks.load_callback_plugins()
+        ansible.callbacks.set_playbook(self.callbacks, self)
 
     # *****************************************************