sdk/platform-tools/systrace/catapult/devil/devil/android/tools/script_common.py

   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
   3 # found in the LICENSE file.
   4
   5 from devil.android import device_blacklist
   6 from devil.android import device_errors
   7 from devil.android import device_utils
   8
   9
  10 def GetDevices(requested_devices, blacklist_file):
  11   if not isinstance(blacklist_file, device_blacklist.Blacklist):
  12     blacklist_file = (device_blacklist.Blacklist(blacklist_file)
  13                       if blacklist_file
  14                       else None)
  15
  16   devices = device_utils.DeviceUtils.HealthyDevices(blacklist_file)
  17   if not devices:
  18     raise device_errors.NoDevicesError()
  19   elif requested_devices:
  20     requested = set(requested_devices)
  21     available = set(str(d) for d in devices)
  22     missing = requested.difference(available)
  23     if missing:
  24       raise device_errors.DeviceUnreachableError(next(iter(missing)))
  25     return sorted(device_utils.DeviceUtils(d)
  26                   for d in available.intersection(requested))
  27   else:
  28     return devices
  29