Send build revision as json object.

annotated_gclient.py

 #!/usr/bin/env python
 # Copyright 2013 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.
 
 """Wraps gclient calls with annotated output.
 
 Note that you will have to use -- to stop option parsing for gclient flags.
 
 To run `gclient sync --gclientfile=.gclient` and annotate got_v8_revision:
@@ skipping 33 matching lines @@
     path = path.rstrip('/')
     if path in revision_mapping:
       propname = revision_mapping[path]
       result[propname] = info['revision']
 
   return result
 
 
 def emit_buildprops(got_revisions):
   for prop, revision in got_revisions.iteritems():
-    print '@@@SET_BUILD_PROPERTY@%s@%s@@@' % (prop, revision)
+    print '@@@SET_BUILD_PROPERTY@%s@%s@@@' % (prop, json.dumps(revision))
 
 
 def main():
   parser = optparse.OptionParser(
       description=('Runs gclient and annotates the output with any '
                    'got_revisions.'))
   parser.add_option('--revision-mapping', default='{}',
                     help='json dict of directory-to-property mappings.')
   parser.add_option('--suffix', default='gclient',
                     help='tempfile suffix')
@@ skipping 15 matching lines @@
     p.wait()
 
     if p.returncode == 0:
       revisions = parse_got_revision(f, revision_mapping)
       emit_buildprops(revisions)
     return p.returncode
 
 
 if __name__ == '__main__':
   sys.exit(main())