Only archive apidocs if they are not already there

dart/tools/bots/bot_utils.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 import hashlib
 import imp
 import os
 import subprocess
@@ skipping 162 matching lines @@
     self.bucket = 'gs://dartlang-api-docs'
 
   def docs_dirpath(self, revision):
     assert len('%s' % revision) > 0
     return '%s/channels/%s/%s' % (self.bucket, self.channel, revision)
 
   def docs_latestpath(self, revision):
     assert len('%s' % revision) > 0
     return '%s/channels/%s/latest.txt' % (self.bucket, self.channel)
 
-def run(command, env=None, shell=False):
+def run(command, env=None, shell=False, throw_on_error=True):
   print "Running command: ", command
 
   p = subprocess.Popen(command, stdout=subprocess.PIPE,
                        stderr=subprocess.PIPE, env=env, shell=shell)
   (stdout, stderr) = p.communicate()
-  if p.returncode != 0:
+  if throw_on_error and p.returncode != 0:
     print >> sys.stderr, "Failed to execute '%s'. Exit code: %s." % (
         command, p.returncode)
     print >> sys.stderr, "stdout: ", stdout
     print >> sys.stderr, "stderr: ", stderr
     raise Exception("Failed to execute %s." % command)
+  return (stdout, stderr, p.returncode)
 
 class GSUtil(object):
   GSUTIL_IS_SHELL_SCRIPT = False
   GSUTIL_PATH = None
 
   def _layzCalculateGSUtilPath(self):
     if not GSUtil.GSUTIL_PATH:
       buildbot_gsutil = utils.GetBuildbotGSUtilPath()
       if os.path.isfile(buildbot_gsutil):
         GSUtil.GSUTIL_IS_SHELL_SCRIPT = True
@@ skipping 70 matching lines @@
   if not mangled_filename:
     mangled_filename = os.path.basename(filename)
 
   checksum = CalculateChecksum(filename)
   checksum_filename = '%s.md5sum' % filename
 
   with open(checksum_filename, 'w') as f:
     f.write('%s *%s' % (checksum, mangled_filename))
 
   return checksum_filename