Chris Craik | ad0b04f | 2015-07-21 13:44:22 -0700 | [diff] [blame] | 1 | # Copyright (c) 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 | import optparse |
| 6 | import subprocess |
| 7 | import sys |
| 8 | |
| 9 | |
| 10 | class OptionParserIgnoreErrors(optparse.OptionParser): |
| 11 | """Wrapper for OptionParser that ignores errors and produces no output.""" |
| 12 | |
| 13 | def error(self, msg): |
| 14 | pass |
| 15 | |
| 16 | def exit(self): |
| 17 | pass |
| 18 | |
| 19 | def print_usage(self): |
| 20 | pass |
| 21 | |
| 22 | def print_help(self): |
| 23 | pass |
| 24 | |
| 25 | def print_version(self): |
| 26 | pass |
| 27 | |
| 28 | |
| 29 | def add_adb_serial(adb_command, device_serial): |
| 30 | if device_serial is not None: |
| 31 | adb_command.insert(1, device_serial) |
| 32 | adb_command.insert(1, '-s') |
| 33 | |
| 34 | |
| 35 | def construct_adb_shell_command(shell_args, device_serial): |
| 36 | adb_command = ['adb', 'shell', ' '.join(shell_args)] |
| 37 | add_adb_serial(adb_command, device_serial) |
| 38 | return adb_command |
| 39 | |
| 40 | |
| 41 | def run_adb_shell(shell_args, device_serial): |
| 42 | """Runs "adb shell" with the given arguments. |
| 43 | |
| 44 | Args: |
| 45 | shell_args: array of arguments to pass to adb shell. |
| 46 | device_serial: if not empty, will add the appropriate command-line |
| 47 | parameters so that adb targets the given device. |
| 48 | Returns: |
| 49 | A tuple containing the adb output (stdout & stderr) and the return code |
| 50 | from adb. Will exit if adb fails to start. |
| 51 | """ |
| 52 | adb_command = construct_adb_shell_command(shell_args, device_serial) |
| 53 | |
| 54 | adb_output = [] |
| 55 | adb_return_code = 0 |
| 56 | try: |
| 57 | adb_output = subprocess.check_output(adb_command, stderr=subprocess.STDOUT, |
| 58 | shell=False, universal_newlines=True) |
| 59 | except OSError as error: |
| 60 | # This usually means that the adb executable was not found in the path. |
| 61 | print >> sys.stderr, ('\nThe command "%s" failed with the following error:' |
| 62 | % ' '.join(adb_command)) |
| 63 | print >> sys.stderr, ' %s\n' % str(error) |
| 64 | print >> sys.stderr, 'Is adb in your path?' |
| 65 | sys.exit(1) |
| 66 | except subprocess.CalledProcessError as error: |
| 67 | # The process exited with an error. |
| 68 | adb_return_code = error.returncode |
| 69 | adb_output = error.output |
| 70 | |
| 71 | return (adb_output, adb_return_code) |
| 72 | |
| 73 | |
| 74 | def get_device_sdk_version(): |
| 75 | """Uses adb to attempt to determine the SDK version of a running device.""" |
| 76 | |
| 77 | getprop_args = ['getprop', 'ro.build.version.sdk'] |
| 78 | |
| 79 | # get_device_sdk_version() is called before we even parse our command-line |
| 80 | # args. Therefore, parse just the device serial number part of the |
| 81 | # command-line so we can send the adb command to the correct device. |
| 82 | parser = OptionParserIgnoreErrors() |
| 83 | parser.add_option('-e', '--serial', dest='device_serial', type='string') |
| 84 | options, unused_args = parser.parse_args() |
| 85 | |
| 86 | success = False |
| 87 | |
| 88 | adb_output, adb_return_code = run_adb_shell(getprop_args, |
| 89 | options.device_serial) |
| 90 | |
| 91 | if adb_return_code == 0: |
| 92 | # ADB may print output other than the version number (e.g. it chould |
| 93 | # print a message about starting the ADB server). |
| 94 | # Break the ADB output into white-space delimited segments. |
| 95 | parsed_output = str.split(adb_output) |
| 96 | if parsed_output: |
| 97 | # Assume that the version number is the last thing printed by ADB. |
| 98 | version_string = parsed_output[-1] |
| 99 | if version_string: |
| 100 | try: |
| 101 | # Try to convert the text into an integer. |
| 102 | version = int(version_string) |
| 103 | except ValueError: |
| 104 | version = -1 |
| 105 | else: |
| 106 | success = True |
| 107 | |
| 108 | if not success: |
| 109 | print >> sys.stderr, ( |
| 110 | '\nThe command "%s" failed with the following message:' |
| 111 | % ' '.join(getprop_args)) |
| 112 | print >> sys.stderr, adb_output |
| 113 | sys.exit(1) |
| 114 | |
| 115 | return version |