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| 1 # Copyright 2013 The Chromium Authors. All rights reserved. | 1 # Copyright 2013 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 """This module wraps Android's adb tool. | 5 """This module wraps Android's adb tool. |
| 6 | 6 |
| 7 This is a thin wrapper around the adb interface. Any additional complexity | 7 This is a thin wrapper around the adb interface. Any additional complexity |
| 8 should be delegated to a higher level (ex. DeviceUtils). | 8 should be delegated to a higher level (ex. DeviceUtils). |
| 9 """ | 9 """ |
| 10 | 10 |
| 11 import errno | 11 import errno |
| 12 import os | 12 import os |
| 13 | 13 |
| 14 from pylib import cmd_helper | 14 from pylib import cmd_helper |
| 15 from pylib.device import decorators | 15 from pylib.device import decorators |
| 16 from pylib.device import device_errors | 16 from pylib.device import device_errors |
| 17 from pylib.utils import timeout_retry |
| 17 | 18 |
| 18 | 19 |
| 19 _DEFAULT_TIMEOUT = 30 | 20 _DEFAULT_TIMEOUT = 30 |
| 20 _DEFAULT_RETRIES = 2 | 21 _DEFAULT_RETRIES = 2 |
| 21 | 22 |
| 22 | 23 |
| 23 def _VerifyLocalFileExists(path): | 24 def _VerifyLocalFileExists(path): |
| 24 """Verifies a local file exists. | 25 """Verifies a local file exists. |
| 25 | 26 |
| 26 Args: | 27 Args: |
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| 42 Args: | 43 Args: |
| 43 device_serial: The device serial number as a string. | 44 device_serial: The device serial number as a string. |
| 44 """ | 45 """ |
| 45 self._device_serial = str(device_serial) | 46 self._device_serial = str(device_serial) |
| 46 | 47 |
| 47 # pylint: disable=W0613 | 48 # pylint: disable=W0613 |
| 48 @classmethod | 49 @classmethod |
| 49 @decorators.WithTimeoutAndRetries | 50 @decorators.WithTimeoutAndRetries |
| 50 def _RunAdbCmd(cls, arg_list, timeout=None, retries=None, check_error=True): | 51 def _RunAdbCmd(cls, arg_list, timeout=None, retries=None, check_error=True): |
| 51 cmd = ['adb'] + arg_list | 52 cmd = ['adb'] + arg_list |
| 52 exit_code, output = cmd_helper.GetCmdStatusAndOutput(cmd) | 53 exit_code, output = cmd_helper.GetCmdStatusAndOutputWithTimeout( |
| 54 cmd, timeout_retry.CurrentTimeoutThread().GetRemainingTime()) |
| 53 if exit_code != 0: | 55 if exit_code != 0: |
| 54 raise device_errors.AdbCommandFailedError( | 56 raise device_errors.AdbCommandFailedError( |
| 55 cmd, 'returned non-zero exit code %s, output: %s' % | 57 cmd, 'returned non-zero exit code %d and output %r' % |
| 56 (exit_code, output)) | 58 (exit_code, output)) |
| 57 # This catches some errors, including when the device drops offline; | 59 # This catches some errors, including when the device drops offline; |
| 58 # unfortunately adb is very inconsistent with error reporting so many | 60 # unfortunately adb is very inconsistent with error reporting so many |
| 59 # command failures present differently. | 61 # command failures present differently. |
| 60 if check_error and output[:len('error:')] == 'error:': | 62 if check_error and output[:len('error:')] == 'error:': |
| 61 raise device_errors.AdbCommandFailedError(arg_list, output) | 63 raise device_errors.AdbCommandFailedError(arg_list, output) |
| 62 return output | 64 return output |
| 63 # pylint: enable=W0613 | 65 # pylint: enable=W0613 |
| 64 | 66 |
| 65 def _DeviceAdbCmd(self, arg_list, timeout, retries, check_error=True): | 67 def _DeviceAdbCmd(self, arg_list, timeout, retries, check_error=True): |
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| 387 """Restarts the adbd daemon with root permissions, if possible. | 389 """Restarts the adbd daemon with root permissions, if possible. |
| 388 | 390 |
| 389 Args: | 391 Args: |
| 390 timeout: (optional) Timeout per try in seconds. | 392 timeout: (optional) Timeout per try in seconds. |
| 391 retries: (optional) Number of retries to attempt. | 393 retries: (optional) Number of retries to attempt. |
| 392 """ | 394 """ |
| 393 output = self._DeviceAdbCmd(['root'], timeout, retries) | 395 output = self._DeviceAdbCmd(['root'], timeout, retries) |
| 394 if 'cannot' in output: | 396 if 'cannot' in output: |
| 395 raise device_errors.AdbCommandFailedError(['root'], output) | 397 raise device_errors.AdbCommandFailedError(['root'], output) |
| 396 | 398 |
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