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1 # Copyright 2014 The Chromium Authors. All rights reserved. | |
2 # Use of this source code is governed by a BSD-style license that can be | |
3 # found in the LICENSE file. | |
4 | |
5 """A module to keep track of devices across builds.""" | |
6 | |
7 import os | |
8 | |
9 LAST_DEVICES_FILENAME = '.last_devices' | |
10 LAST_MISSING_DEVICES_FILENAME = '.last_missing' | |
11 | |
12 | |
13 def GetPersistentDeviceList(file_name): | |
14 """Returns a list of devices. | |
15 | |
16 Args: | |
17 file_name: the file name containing a list of devices. | |
18 | |
19 Returns: List of device serial numbers that were on the bot. | |
20 """ | |
21 with open(file_name) as f: | |
22 return f.read().splitlines() | |
23 | |
24 | |
25 def WritePersistentDeviceList(file_name, device_list): | |
26 path = os.path.dirname(file_name) | |
27 if not os.path.exists(path): | |
28 os.makedirs(path) | |
29 with open(file_name, 'w') as f: | |
30 f.write('\n'.join(set(device_list))) | |
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