Docserver: Properly implement the Cron logic for ContentProvider and TemplateDataSource so that the…

third_party/handlebar/handlebar.py

Index: third_party/handlebar/handlebar.py
diff --git a/third_party/handlebar/handlebar.py b/third_party/handlebar/handlebar.py
index 7e06868e19380cfdcc4faa8c49f4620e4c0a5d1d..af561cadca5c60688f23b0c06bfe591e3b1251be 100644
--- a/third_party/handlebar/handlebar.py
+++ b/third_party/handlebar/handlebar.py
@@ -275,10 +275,11 @@ class _Identifier(object):
   '''
   _VALID_ID_MATCHER = re.compile(r'^[a-zA-Z0-9@_/-]+$')
 
-  def __init__(self, name, line, column):
+  def __init__(self, name, line, column, title=None):
     self.name = name
     self.line = line
     self.column = column
+    self._title = title
     if name == '':
       raise ParseException('Empty identifier %s' % self.GetDescription())
     for part in name.split('.'):
@@ -286,7 +287,10 @@ class _Identifier(object):
         raise ParseException('Invalid identifier %s' % self.GetDescription())
 
   def GetDescription(self):
-    return '\'%s\' at line %s column %s' % (self.name, self.line, self.column)
+    desc = '\'%s\' at line %s column %s' % (self.name, self.line, self.column)
+    if self._title is not None:
+      desc = '%s: %s' % (self._title, desc)
+    return desc
 
   def CreateResolutionErrorMessage(self, name, stack=None):
     message = _StringBuilder()
@@ -1040,7 +1044,7 @@ class Handlebar(object):
         if clazz is not _UnescapedVariableNode:
           name = name[1:]
           column += 1
-        inline_node = clazz(_Identifier(name, line, column))
+        inline_node = clazz(_Identifier(name, line, column, title=self._name))
         if isinstance(inline_node, _PartialNode):
           inline_node.SetArguments(self._ParsePartialNodeArgs(tokens))
           if bind_to is not None:
@@ -1122,7 +1126,8 @@ class Handlebar(object):
     column_start = tokens.next_column + 1
     id_ = _Identifier(tokens.AdvanceOverNextString(excluded=' \n\r\t:()'),
                       tokens.next_line,
-                      column_start)
+                      column_start,
+                      title=self._name)
     tokens.SkipWhitespace()
     return id_