Take darkened hosts out of the playbook rotation, fix error handling in template

module so that if a directory path is specified we get valid output

lib/ansible/playbook.py

@@ -111,7 +111,7 @@ class PlayBook(object):
         # do not continue to run tasks on hosts that have had failures
         new_hosts = []
         for x in host_list:
-            if not self.failures.has_key(x):
+            if not self.failures.has_key(x) and not self.dark.has_key(x):
                 new_hosts.append(x)
         host_list = new_hosts
 

library/template

@@ -72,6 +72,13 @@ if not os.path.exists(source):
 
 source = file(source).read()
 
+if os.path.isdir(dest):
+    print json.dumps({
+         "failed" : 1,
+         "msg"    : "Destination is a directory"
+    })
+    sys.exit(1)
+
 # record md5sum of original source file so we can report if it changed
 changed = False
 md5sum = None