| epoger@google.com | fd04011 | 2013-08-20 16:21:55 +0000 | [diff] [blame^] | 1 | #!/usr/bin/python |
| 2 | |
| 3 | # Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 4 | # Use of this source code is governed by a BSD-style license that can be |
| 5 | # found in the LICENSE file. |
| 6 | |
| 7 | """ |
| 8 | Provides read access to buildbot's global_variables.json . |
| 9 | """ |
| 10 | |
| 11 | import json |
| 12 | import svn |
| 13 | |
| 14 | _global_vars = None |
| 15 | |
| 16 | class NoSuchGlobalVariable(KeyError): |
| 17 | pass |
| 18 | |
| 19 | def Get(var_name): |
| 20 | '''Return the value associated with this name in global_variables.json. |
| 21 | Raises NoSuchGlobalVariable if there is no variable with that name.''' |
| 22 | global _global_vars |
| 23 | if not _global_vars: |
| 24 | _global_vars = json.loads(svn.Cat('http://skia.googlecode.com/svn/' |
| 25 | 'buildbot/site_config/' |
| 26 | 'global_variables.json')) |
| 27 | try: |
| 28 | return _global_vars[var_name]['value'] |
| 29 | except KeyError: |
| 30 | raise NoSuchGlobalVariable(var_name) |