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1 # Copyright 2015 The Chromium Authors. All rights reserved. | 1 # Copyright 2015 The Chromium Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 """Tools for gradually enabling a feature on a deterministic set of machines. | 5 """Tools for gradually enabling a feature on a deterministic set of machines. |
6 | 6 |
7 Add a flag to your program to control the percentage of machines that a new | 7 Add a flag to your program to control the percentage of machines that a new |
8 feature should be enabled on:: | 8 feature should be enabled on:: |
9 | 9 |
10 def add_argparse_options(self, parser): | 10 def add_argparse_options(self, parser): |
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36 def is_active_for_host(experiment_name, percent): | 36 def is_active_for_host(experiment_name, percent): |
37 ret = _is_active({ | 37 ret = _is_active({ |
38 'name': experiment_name, | 38 'name': experiment_name, |
39 'host': socket.getfqdn(), | 39 'host': socket.getfqdn(), |
40 }, percent) | 40 }, percent) |
41 | 41 |
42 if ret: | 42 if ret: |
43 logging.info('Experiment "%s" is active', experiment_name) | 43 logging.info('Experiment "%s" is active', experiment_name) |
44 | 44 |
45 return ret | 45 return ret |
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