| # |
| # Copyright (C) 2015 The Android Open Source Project |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # |
| import atexit |
| import base64 |
| import logging |
| import os |
| import re |
| import subprocess |
| |
| |
| class FindDeviceError(RuntimeError): |
| pass |
| |
| |
| class DeviceNotFoundError(FindDeviceError): |
| def __init__(self, serial): |
| self.serial = serial |
| super(DeviceNotFoundError, self).__init__( |
| 'No device with serial {}'.format(serial)) |
| |
| |
| class NoUniqueDeviceError(FindDeviceError): |
| def __init__(self): |
| super(NoUniqueDeviceError, self).__init__('No unique device') |
| |
| |
| class ShellError(RuntimeError): |
| def __init__(self, cmd, stdout, stderr, exit_code): |
| super(ShellError, self).__init__( |
| '`{0}` exited with code {1}'.format(cmd, exit_code)) |
| self.cmd = cmd |
| self.stdout = stdout |
| self.stderr = stderr |
| self.exit_code = exit_code |
| |
| |
| def get_devices(adb_path='adb'): |
| with open(os.devnull, 'wb') as devnull: |
| subprocess.check_call([adb_path, 'start-server'], stdout=devnull, |
| stderr=devnull) |
| out = split_lines(subprocess.check_output([adb_path, 'devices'])) |
| |
| # The first line of `adb devices` just says "List of attached devices", so |
| # skip that. |
| devices = [] |
| for line in out[1:]: |
| if not line.strip(): |
| continue |
| if 'offline' in line: |
| continue |
| |
| serial, _ = re.split(r'\s+', line, maxsplit=1) |
| devices.append(serial) |
| return devices |
| |
| |
| def _get_unique_device(product=None, adb_path='adb'): |
| devices = get_devices(adb_path=adb_path) |
| if len(devices) != 1: |
| raise NoUniqueDeviceError() |
| return AndroidDevice(devices[0], product, adb_path) |
| |
| |
| def _get_device_by_serial(serial, product=None, adb_path='adb'): |
| for device in get_devices(adb_path=adb_path): |
| if device == serial: |
| return AndroidDevice(serial, product, adb_path) |
| raise DeviceNotFoundError(serial) |
| |
| |
| def get_device(serial=None, product=None, adb_path='adb'): |
| """Get a uniquely identified AndroidDevice if one is available. |
| |
| Raises: |
| DeviceNotFoundError: |
| The serial specified by `serial` or $ANDROID_SERIAL is not |
| connected. |
| |
| NoUniqueDeviceError: |
| Neither `serial` nor $ANDROID_SERIAL was set, and the number of |
| devices connected to the system is not 1. Having 0 connected |
| devices will also result in this error. |
| |
| Returns: |
| An AndroidDevice associated with the first non-None identifier in the |
| following order of preference: |
| |
| 1) The `serial` argument. |
| 2) The environment variable $ANDROID_SERIAL. |
| 3) The single device connnected to the system. |
| """ |
| if serial is not None: |
| return _get_device_by_serial(serial, product, adb_path) |
| |
| android_serial = os.getenv('ANDROID_SERIAL') |
| if android_serial is not None: |
| return _get_device_by_serial(android_serial, product, adb_path) |
| |
| return _get_unique_device(product, adb_path=adb_path) |
| |
| |
| def _get_device_by_type(flag, adb_path): |
| with open(os.devnull, 'wb') as devnull: |
| subprocess.check_call([adb_path, 'start-server'], stdout=devnull, |
| stderr=devnull) |
| try: |
| serial = subprocess.check_output( |
| [adb_path, flag, 'get-serialno']).strip() |
| except subprocess.CalledProcessError: |
| raise RuntimeError('adb unexpectedly returned nonzero') |
| if serial == 'unknown': |
| raise NoUniqueDeviceError() |
| return _get_device_by_serial(serial, adb_path=adb_path) |
| |
| |
| def get_usb_device(adb_path='adb'): |
| """Get the unique USB-connected AndroidDevice if it is available. |
| |
| Raises: |
| NoUniqueDeviceError: |
| 0 or multiple devices are connected via USB. |
| |
| Returns: |
| An AndroidDevice associated with the unique USB-connected device. |
| """ |
| return _get_device_by_type('-d', adb_path=adb_path) |
| |
| |
| def get_emulator_device(adb_path='adb'): |
| """Get the unique emulator AndroidDevice if it is available. |
| |
| Raises: |
| NoUniqueDeviceError: |
| 0 or multiple emulators are running. |
| |
| Returns: |
| An AndroidDevice associated with the unique running emulator. |
| """ |
| return _get_device_by_type('-e', adb_path=adb_path) |
| |
| |
| # If necessary, modifies subprocess.check_output() or subprocess.Popen() args |
| # to run the subprocess via Windows PowerShell to work-around an issue in |
| # Python 2's subprocess class on Windows where it doesn't support Unicode. |
| def _get_subprocess_args(args): |
| # Only do this slow work-around if Unicode is in the cmd line on Windows. |
| # PowerShell takes 600-700ms to startup on a 2013-2014 machine, which is |
| # very slow. |
| if os.name != 'nt' or all(not isinstance(arg, unicode) for arg in args[0]): |
| return args |
| |
| def escape_arg(arg): |
| # Escape for the parsing that the C Runtime does in Windows apps. In |
| # particular, this will take care of double-quotes. |
| arg = subprocess.list2cmdline([arg]) |
| # Escape single-quote with another single-quote because we're about |
| # to... |
| arg = arg.replace(u"'", u"''") |
| # ...put the arg in a single-quoted string for PowerShell to parse. |
| arg = u"'" + arg + u"'" |
| return arg |
| |
| # Escape command line args. |
| argv = map(escape_arg, args[0]) |
| # Cause script errors (such as adb not found) to stop script immediately |
| # with an error. |
| ps_code = u'$ErrorActionPreference = "Stop"\r\n' |
| # Add current directory to the PATH var, to match cmd.exe/CreateProcess() |
| # behavior. |
| ps_code += u'$env:Path = ".;" + $env:Path\r\n' |
| # Precede by &, the PowerShell call operator, and separate args by space. |
| ps_code += u'& ' + u' '.join(argv) |
| # Make the PowerShell exit code the exit code of the subprocess. |
| ps_code += u'\r\nExit $LastExitCode' |
| # Encode as UTF-16LE (without Byte-Order-Mark) which Windows natively |
| # understands. |
| ps_code = ps_code.encode('utf-16le') |
| |
| # Encode the PowerShell command as base64 and use the special |
| # -EncodedCommand option that base64 decodes. Base64 is just plain ASCII, |
| # so it should have no problem passing through Win32 CreateProcessA() |
| # (which python erroneously calls instead of CreateProcessW()). |
| return (['powershell.exe', '-NoProfile', '-NonInteractive', |
| '-EncodedCommand', base64.b64encode(ps_code)],) + args[1:] |
| |
| |
| # Call this instead of subprocess.check_output() to work-around issue in Python |
| # 2's subprocess class on Windows where it doesn't support Unicode. |
| def _subprocess_check_output(*args, **kwargs): |
| try: |
| return subprocess.check_output(*_get_subprocess_args(args), **kwargs) |
| except subprocess.CalledProcessError as e: |
| # Show real command line instead of the powershell.exe command line. |
| raise subprocess.CalledProcessError(e.returncode, args[0], |
| output=e.output) |
| |
| |
| # Call this instead of subprocess.Popen(). Like _subprocess_check_output(). |
| def _subprocess_Popen(*args, **kwargs): |
| return subprocess.Popen(*_get_subprocess_args(args), **kwargs) |
| |
| |
| def split_lines(s): |
| """Splits lines in a way that works even on Windows and old devices. |
| |
| Windows will see \r\n instead of \n, old devices do the same, old devices |
| on Windows will see \r\r\n. |
| """ |
| # rstrip is used here to workaround a difference between splineslines and |
| # re.split: |
| # >>> 'foo\n'.splitlines() |
| # ['foo'] |
| # >>> re.split(r'\n', 'foo\n') |
| # ['foo', ''] |
| return re.split(r'[\r\n]+', s.rstrip()) |
| |
| |
| def version(adb_path=None): |
| """Get the version of adb (in terms of ADB_SERVER_VERSION).""" |
| |
| adb_path = adb_path if adb_path is not None else ['adb'] |
| version_output = subprocess.check_output(adb_path + ['version']) |
| pattern = r'^Android Debug Bridge version 1.0.(\d+)$' |
| result = re.match(pattern, version_output.splitlines()[0]) |
| if not result: |
| return 0 |
| return int(result.group(1)) |
| |
| |
| class AndroidDevice(object): |
| # Delimiter string to indicate the start of the exit code. |
| _RETURN_CODE_DELIMITER = 'x' |
| |
| # Follow any shell command with this string to get the exit |
| # status of a program since this isn't propagated by adb. |
| # |
| # The delimiter is needed because `printf 1; echo $?` would print |
| # "10", and we wouldn't be able to distinguish the exit code. |
| _RETURN_CODE_PROBE = [';', 'echo', '{0}$?'.format(_RETURN_CODE_DELIMITER)] |
| |
| # Maximum search distance from the output end to find the delimiter. |
| # adb on Windows returns \r\n even if adbd returns \n. Some old devices |
| # seem to actually return \r\r\n. |
| _RETURN_CODE_SEARCH_LENGTH = len( |
| '{0}255\r\r\n'.format(_RETURN_CODE_DELIMITER)) |
| |
| def __init__(self, serial, product=None, adb_path='adb'): |
| self.serial = serial |
| self.product = product |
| self.adb_path = adb_path |
| self.adb_cmd = [adb_path] |
| |
| if self.serial is not None: |
| self.adb_cmd.extend(['-s', serial]) |
| if self.product is not None: |
| self.adb_cmd.extend(['-p', product]) |
| self._linesep = None |
| self._features = None |
| |
| @property |
| def linesep(self): |
| if self._linesep is None: |
| self._linesep = subprocess.check_output(self.adb_cmd + |
| ['shell', 'echo']) |
| return self._linesep |
| |
| @property |
| def features(self): |
| if self._features is None: |
| try: |
| self._features = split_lines(self._simple_call(['features'])) |
| except subprocess.CalledProcessError: |
| self._features = [] |
| return self._features |
| |
| def has_shell_protocol(self): |
| return version(self.adb_cmd) >= 35 and 'shell_v2' in self.features |
| |
| def _make_shell_cmd(self, user_cmd): |
| command = self.adb_cmd + ['shell'] + user_cmd |
| if not self.has_shell_protocol(): |
| command += self._RETURN_CODE_PROBE |
| return command |
| |
| def _parse_shell_output(self, out): |
| """Finds the exit code string from shell output. |
| |
| Args: |
| out: Shell output string. |
| |
| Returns: |
| An (exit_code, output_string) tuple. The output string is |
| cleaned of any additional stuff we appended to find the |
| exit code. |
| |
| Raises: |
| RuntimeError: Could not find the exit code in |out|. |
| """ |
| search_text = out |
| if len(search_text) > self._RETURN_CODE_SEARCH_LENGTH: |
| # We don't want to search over massive amounts of data when we know |
| # the part we want is right at the end. |
| search_text = search_text[-self._RETURN_CODE_SEARCH_LENGTH:] |
| partition = search_text.rpartition(self._RETURN_CODE_DELIMITER) |
| if partition[1] == '': |
| raise RuntimeError('Could not find exit status in shell output.') |
| result = int(partition[2]) |
| # partition[0] won't contain the full text if search_text was |
| # truncated, pull from the original string instead. |
| out = out[:-len(partition[1]) - len(partition[2])] |
| return result, out |
| |
| def _simple_call(self, cmd): |
| logging.info(' '.join(self.adb_cmd + cmd)) |
| return _subprocess_check_output( |
| self.adb_cmd + cmd, stderr=subprocess.STDOUT) |
| |
| def shell(self, cmd): |
| """Calls `adb shell` |
| |
| Args: |
| cmd: command to execute as a list of strings. |
| |
| Returns: |
| A (stdout, stderr) tuple. Stderr may be combined into stdout |
| if the device doesn't support separate streams. |
| |
| Raises: |
| ShellError: the exit code was non-zero. |
| """ |
| exit_code, stdout, stderr = self.shell_nocheck(cmd) |
| if exit_code != 0: |
| raise ShellError(cmd, stdout, stderr, exit_code) |
| return stdout, stderr |
| |
| def shell_nocheck(self, cmd): |
| """Calls `adb shell` |
| |
| Args: |
| cmd: command to execute as a list of strings. |
| |
| Returns: |
| An (exit_code, stdout, stderr) tuple. Stderr may be combined |
| into stdout if the device doesn't support separate streams. |
| """ |
| cmd = self._make_shell_cmd(cmd) |
| logging.info(' '.join(cmd)) |
| p = _subprocess_Popen( |
| cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) |
| stdout, stderr = p.communicate() |
| if self.has_shell_protocol(): |
| exit_code = p.returncode |
| else: |
| exit_code, stdout = self._parse_shell_output(stdout) |
| return exit_code, stdout, stderr |
| |
| def shell_popen(self, cmd, kill_atexit=True, preexec_fn=None, |
| creationflags=0, **kwargs): |
| """Calls `adb shell` and returns a handle to the adb process. |
| |
| This function provides direct access to the subprocess used to run the |
| command, without special return code handling. Users that need the |
| return value must retrieve it themselves. |
| |
| Args: |
| cmd: Array of command arguments to execute. |
| kill_atexit: Whether to kill the process upon exiting. |
| preexec_fn: Argument forwarded to subprocess.Popen. |
| creationflags: Argument forwarded to subprocess.Popen. |
| **kwargs: Arguments forwarded to subprocess.Popen. |
| |
| Returns: |
| subprocess.Popen handle to the adb shell instance |
| """ |
| |
| command = self.adb_cmd + ['shell'] + cmd |
| |
| # Make sure a ctrl-c in the parent script doesn't kill gdbserver. |
| if os.name == 'nt': |
| creationflags |= subprocess.CREATE_NEW_PROCESS_GROUP |
| else: |
| if preexec_fn is None: |
| preexec_fn = os.setpgrp |
| elif preexec_fn is not os.setpgrp: |
| fn = preexec_fn |
| def _wrapper(): |
| fn() |
| os.setpgrp() |
| preexec_fn = _wrapper |
| |
| p = _subprocess_Popen(command, creationflags=creationflags, |
| preexec_fn=preexec_fn, **kwargs) |
| |
| if kill_atexit: |
| atexit.register(p.kill) |
| |
| return p |
| |
| def install(self, filename, replace=False): |
| cmd = ['install'] |
| if replace: |
| cmd.append('-r') |
| cmd.append(filename) |
| return self._simple_call(cmd) |
| |
| def push(self, local, remote, sync=False): |
| """Transfer a local file or directory to the device. |
| |
| Args: |
| local: The local file or directory to transfer. |
| remote: The remote path to which local should be transferred. |
| sync: If True, only transfers files that are newer on the host than |
| those on the device. If False, transfers all files. |
| |
| Returns: |
| Exit status of the push command. |
| """ |
| cmd = ['push'] |
| if sync: |
| cmd.append('--sync') |
| cmd.extend([local, remote]) |
| return self._simple_call(cmd) |
| |
| def pull(self, remote, local): |
| return self._simple_call(['pull', remote, local]) |
| |
| def sync(self, directory=None): |
| cmd = ['sync'] |
| if directory is not None: |
| cmd.append(directory) |
| return self._simple_call(cmd) |
| |
| def tcpip(self, port): |
| return self._simple_call(['tcpip', port]) |
| |
| def usb(self): |
| return self._simple_call(['usb']) |
| |
| def reboot(self): |
| return self._simple_call(['reboot']) |
| |
| def remount(self): |
| return self._simple_call(['remount']) |
| |
| def root(self): |
| return self._simple_call(['root']) |
| |
| def unroot(self): |
| return self._simple_call(['unroot']) |
| |
| def connect(self, host): |
| return self._simple_call(['connect', host]) |
| |
| def disconnect(self, host): |
| return self._simple_call(['disconnect', host]) |
| |
| def forward(self, local, remote): |
| return self._simple_call(['forward', local, remote]) |
| |
| def forward_list(self): |
| return self._simple_call(['forward', '--list']) |
| |
| def forward_no_rebind(self, local, remote): |
| return self._simple_call(['forward', '--no-rebind', local, remote]) |
| |
| def forward_remove(self, local): |
| return self._simple_call(['forward', '--remove', local]) |
| |
| def forward_remove_all(self): |
| return self._simple_call(['forward', '--remove-all']) |
| |
| def reverse(self, remote, local): |
| return self._simple_call(['reverse', remote, local]) |
| |
| def reverse_list(self): |
| return self._simple_call(['reverse', '--list']) |
| |
| def reverse_no_rebind(self, local, remote): |
| return self._simple_call(['reverse', '--no-rebind', local, remote]) |
| |
| def reverse_remove_all(self): |
| return self._simple_call(['reverse', '--remove-all']) |
| |
| def reverse_remove(self, remote): |
| return self._simple_call(['reverse', '--remove', remote]) |
| |
| def wait(self): |
| return self._simple_call(['wait-for-device']) |
| |
| def get_prop(self, prop_name): |
| output = split_lines(self.shell(['getprop', prop_name])[0]) |
| if len(output) != 1: |
| raise RuntimeError('Too many lines in getprop output:\n' + |
| '\n'.join(output)) |
| value = output[0] |
| if not value.strip(): |
| return None |
| return value |
| |
| def set_prop(self, prop_name, value): |
| self.shell(['setprop', prop_name, value]) |
