Implement better error reporting for TCheetah

Cheetah template errors now display:

NotFound: cannot find 'hostn' while searching for 'self.metadata.hostn'
Failed to template /bcfg2.conf



git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@3645 ce84e21b-d406-0410-9b95-82705330c041

1 files changed, 6 insertions, 1 deletions

diff --git a/src/lib/Server/Plugins/TCheetah.py b/src/lib/Server/Plugins/TCheetah.py
index 3eb41e834..ec31a66b9 100644
--- a/src/lib/Server/Plugins/TCheetah.py
+++ b/src/lib/Server/Plugins/TCheetah.py
@@ -1,7 +1,8 @@
 '''This module implements a templating generator based on Cheetah'''
 __revision__ = '$Revision$'
 
-import logging, lxml.etree, posixpath, re, Cheetah.Parser, Cheetah.Template
+import logging, lxml.etree, posixpath, traceback, re, sys
+import Cheetah.Template, Cheetah.Parser
 import Bcfg2.Server.Plugin
 
 logger = logging.getLogger('Bcfg2.Plugins.TCheetah')
@@ -56,7 +57,11 @@ class TemplateFile:
         try:
             entry.text = str(self.template)
         except:
+            (a,b,c) = sys.exc_info()
+            msg = traceback.format_exception(a, b, c, limit=2)[-1][:-1]
+            logger.error(msg)
             logger.error("Failed to template %s" % entry.get('name'))
+            del a, b, c
             raise Bcfg2.Server.Plugin.PluginExecutionError
         if hasattr(self, 'infoxml'):
             mdata = {}