Prune archives uploaded to google storage.

scripts/slave/zip_build.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """ Creates a zip file in the staging dir with the result of a compile.
     It can be sent to other machines for testing.
 """
 
 import csv
@@ skipping 332 matching lines @@
   mojom_files = _MojomFiles(build_dir, ['.mojom.js', '_mojom.py'])
   print 'Include mojom files: %s' % mojom_files
   zip_file_list.extend(mojom_files)
 
   zip_file = MakeUnversionedArchive(build_dir, staging_dir, zip_file_list,
                                     unversioned_base_name)
 
   zip_base, zip_ext, versioned_file = MakeVersionedArchive(
       zip_file, version_suffix, options)
 
-  PruneOldArchives(staging_dir, zip_base, zip_ext, prune_limit=10)
+  prune_limit = 10
+  if options.build_url.startswith('gs://'):
+    # Don't keep builds lying around when uploading them to google storage.
+    prune_limit = 3
+  PruneOldArchives(staging_dir, zip_base, zip_ext, prune_limit=prune_limit)
 
   # Update the latest revision file in the staging directory
   # to allow testers to figure out the latest packaged revision
   # without downloading tarballs.
   revision_file = WriteRevisionFile(staging_dir, build_revision)
 
   if options.build_url.startswith('gs://'):
     zip_url = UploadToGoogleStorage(
         versioned_file, revision_file, options.build_url, options.gs_acl)
 
@@ skipping 81 matching lines @@
   # first unknown arg.  So throw a warning if we have two or more unknown
   # arguments.
   if args[1:]:
     print 'Warning -- unknown arguments' % args[1:]
 
   return Archive(options)
 
 
 if '__main__' == __name__:
   sys.exit(main(sys.argv))