Adding support for NOTREECHECKS

verification/tree_status.py

Index: verification/tree_status.py
===================================================================
--- verification/tree_status.py	(revision 234872)
+++ verification/tree_status.py	(working copy)
@@ -7,6 +7,7 @@
 import calendar
 import json
 import logging
+import re
 import ssl
 import time
 import urllib2
@@ -56,6 +57,12 @@
       return u'Tree is currently not open: %s' % self.last_tree_status
 
 
+class AlwaysOpenTreeStatus(TreeStatus):
+  """Used when tree status does not need to be checked."""
+  def postpone(self):
+    return False
+
+
 class TreeStatusVerifier(base.Verifier):
   """Checks the tree status before allowing a commit."""
   name = 'tree status'
@@ -65,8 +72,15 @@
     self.tree_status_url = tree_status_url
 
   def verify(self, pending):
-    pending.verifications[self.name] = TreeStatus(
-        tree_status_url=self.tree_status_url, issue=pending.issue)
+    if re.search(r'(?im)^NOTREECHECKS=TRUE$', pending.description):
+      # Use a TreeStatus instance that always returns False for postpone().
+      tree_status = AlwaysOpenTreeStatus()
+    else:
+      tree_status = TreeStatus(
+          tree_status_url=self.tree_status_url, issue=pending.issue)
 
+    pending.verifications[self.name] = tree_status
+
   def update_status(self, queue):
     pass
+