CQ: include more information in exception warnings

commit-queue/verification/try_job_on_rietveld.py

Index: commit-queue/verification/try_job_on_rietveld.py
===================================================================
--- commit-queue/verification/try_job_on_rietveld.py	(revision 237625)
+++ commit-queue/verification/try_job_on_rietveld.py	(working copy)
@@ -725,21 +725,26 @@
     except urllib2.HTTPError as e:
       if e.code in (500, 502, 503):
         # Temporary AppEngine hiccup. Just log it and return failure.
-        logging.warning(str(e))
+        logging.warning('%s while accessing %s. Ignoring error.' % (
+                        str(e), e.url))
         return False
       else:
         raise
     except socket.error as e:
       # Temporary AppEngine hiccup. Just log it and return failure.
       if e.errno == errno.ECONNRESET:
-        logging.warning(str(e))
+        logging.warning(
+            '%s while updating tryserver status for rietveld issue %s.' % (
+            str(e), str(pending.issue)))

[cmp, 2013/11/27 22:17:16]

let's add e.url to the message here, too

         return False
       else:
         raise
     except IOError as e:
       # Temporary AppEngine hiccup. Just log it and return failure.
       if e.errno == 'socket error':
-        logging.warning(str(e))
+        logging.warning(
+            '%s while updating tryserver status for rietveld issue %s.' % (
+            str(e), str(pending.issue)))

[cmp, 2013/11/27 22:17:16]

let's add e.url to the message here, too

         return False
       raise
     if handle: