implement Object state

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>

lib/cdist/core/object.py

@@ -51,6 +51,11 @@ class Object(object):
 
     """
 
+    # Constants for use with Object.state
+    STATE_PREPARED = "prepared"
+    STATE_RUNNING = "running"
+    STATE_DONE = "done"
+
     @classmethod
     def list_objects(cls, object_base_path, type_base_path):
         """Return a list of object instances"""
@@ -127,6 +132,7 @@ class Object(object):
     changed = fsproperty.FileBooleanProperty(lambda obj: os.path.join(obj.absolute_path, "changed"))
     prepared = fsproperty.FileBooleanProperty(lambda obj: os.path.join(obj.absolute_path, "prepared"))
     ran = fsproperty.FileBooleanProperty(lambda obj: os.path.join(obj.absolute_path, "ran"))
+    state = fsproperty.FileStringProperty(lambda obj: os.path.join(obj.absolute_path, "state"))
     source = fsproperty.FileListProperty(lambda obj: os.path.join(obj.absolute_path, "source"))
     code_local = fsproperty.FileStringProperty(lambda obj: os.path.join(obj.base_path, obj.code_local_path))
     code_remote = fsproperty.FileStringProperty(lambda obj: os.path.join(obj.base_path, obj.code_remote_path))