trychange.py: Gerrit protocol

gerrit_util.py

 # Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """
 Utilities for requesting information for a gerrit server via https.
 
 https://gerrit-review.googlesource.com/Documentation/rest-api.html
 """
 
@@ skipping 122 matching lines @@
       req_host = conn.req_host
       req_params = conn.req_params
       conn = GetConnectionClass()(req_host)
       conn.req_host = req_host
       conn.req_params = req_params
       conn.request(**req_params)
     LOGGER.warn(msg)
   if ignore_404 and response.status == 404:
     return StringIO()
   if response.status != expect_status:
-    raise GerritError(response.status, response.reason)
+    reason = '%s: %s' % (response.reason, response.read())
+    raise GerritError(response.status, reason)
   return StringIO(response.read())
 
 
 def ReadHttpJsonResponse(conn, expect_status=200, ignore_404=True):
   """Parses an https response as json."""
   fh = ReadHttpResponse(
       conn, expect_status=expect_status, ignore_404=ignore_404)
   # The first line of the response should always be: )]}'
   s = fh.readline()
   if s and s.rstrip() != ")]}'":
@@ skipping 275 matching lines @@
         username = review.get('email', jmsg.get('name', ''))
         raise GerritError(200, 'Unable to set %s label for user "%s"'
                        ' on change %s.' % (label, username, change))
   jmsg = GetChangeCurrentRevision(host, change)
   if not jmsg:
     raise GerritError(
         200, 'Could not get review information for change "%s"' % change)
   elif jmsg[0]['current_revision'] != revision:
     raise GerritError(200, 'While resetting labels on change "%s", '
                    'a new patchset was uploaded.' % change)