Clean up old zip files when archiving, more accurately.

tools/dartium/archive.py

 #!/usr/bin/python
 
 # Copyright (c) 2011 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import glob
 import optparse
 import os
 import shutil
@@ skipping 112 matching lines @@
   if not target:
     return None
 
   stageDir = target
   zipFile = stageDir + '.zip'
 
   # Cleanup old files.
   if os.path.exists(stageDir):
     shutil.rmtree(stageDir)
   os.mkdir(stageDir)
-  oldFiles = glob.glob(target.split('-')[0] + '*.zip')
+  revision = target.split('-')[-1]
+  oldFiles = glob.glob(target.replace(revision, '*.zip')
   for oldFile in oldFiles:
     os.remove(oldFile)
 
   GenerateVersionFile()
   GenerateZipFile(zipFile, stageDir, fileList)
   print 'last change: %s' % (zipFile)
 
   # Clean up. Buildbot disk space is limited.
   shutil.rmtree(stageDir)
 
@@ skipping 50 matching lines @@
                     action='store', type='string',
                     help='(Release|Debug)')
   (options, args) = parser.parse_args()
   Archive(srcpath, options.mode, options.dartium, options.contentshell,
           options.chromedriver)
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())