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Code Issues Releases Wiki Activity

Devices: Removed Devices

Browse Source 
They are now superseded by DeviceManagers
This commit is contained in:
Sebastian Goscik
2016-02-16 11:18:41 +00:00
parent 4fc93a8a3c
commit 1599c1e0ed
26 changed files with 0 additions and 4880 deletions
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wlauto/common/android/device.py
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# Copyright 2013-2015 ARM Limited
#
# 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.
#
# pylint: disable=E1101
import os
import sys
import re
import time
import tempfile
import shutil
import threading
from subprocess import CalledProcessError
from wlauto.core.extension import Parameter
from wlauto.common.linux.device import BaseLinuxDevice, PsEntry
from wlauto.exceptions import DeviceError, WorkerThreadError, TimeoutError, DeviceNotRespondingError
from wlauto.utils.misc import convert_new_lines
from wlauto.utils.types import boolean, regex
from wlauto.utils.android import (adb_shell, adb_background_shell, adb_list_devices,
adb_command, AndroidProperties, ANDROID_VERSION_MAP)
SCREEN_STATE_REGEX = re.compile('(?:mPowerState|mScreenOn|Display Power: state)=([0-9]+|true|false|ON|OFF)', re.I)
SCREEN_SIZE_REGEX = re.compile(r'mUnrestrictedScreen=\(\d+,\d+\)\s+(?P<width>\d+)x(?P<height>\d+)')
class AndroidDevice(BaseLinuxDevice): # pylint: disable=W0223
"""
Device running Android OS.
"""
platform = 'android'
parameters = [
Parameter('adb_name',
description='The unique ID of the device as output by "adb devices".'),
Parameter('android_prompt', kind=regex, default=re.compile('^.*(shell|root)@.*:/\S* [#$] ', re.MULTILINE),
description='The format of matching the shell prompt in Android.'),
Parameter('working_directory', default='/sdcard/wa-working',
description='Directory that will be used WA on the device for output files etc.'),
Parameter('binaries_directory', default='/data/local/tmp', override=True,
description='Location of binaries on the device.'),
Parameter('package_data_directory', default='/data/data',
description='Location of of data for an installed package (APK).'),
Parameter('external_storage_directory', default='/sdcard',
description='Mount point for external storage.'),
Parameter('connection', default='usb', allowed_values=['usb', 'ethernet'],
description='Specified the nature of adb connection.'),
Parameter('logcat_poll_period', kind=int,
description="""
If specified and is not ``0``, logcat will be polled every
``logcat_poll_period`` seconds, and buffered on the host. This
can be used if a lot of output is expected in logcat and the fixed
logcat buffer on the device is not big enough. The trade off is that
this introduces some minor runtime overhead. Not set by default.
"""),
Parameter('enable_screen_check', kind=boolean, default=False,
description="""
Specified whether the device should make sure that the screen is on
during initialization.
"""),
Parameter('swipe_to_unlock', kind=str, default=None,
allowed_values=[None, "horizontal", "vertical"],
description="""
If set a swipe of the specified direction will be performed.
This should unlock the screen.
"""),
]
default_timeout = 30
delay = 2
long_delay = 3 * delay
ready_timeout = 60
# Overwritten from Device. For documentation, see corresponding method in
# Device.
@property
def is_rooted(self):
if self._is_rooted is None:
try:
result = adb_shell(self.adb_name, 'su', timeout=1)
if 'not found' in result:
self._is_rooted = False
else:
self._is_rooted = True
except TimeoutError:
self._is_rooted = True
except DeviceError:
self._is_rooted = False
return self._is_rooted
@property
def abi(self):
return self.getprop()['ro.product.cpu.abi'].split('-')[0]
@property
def supported_eabi(self):
props = self.getprop()
result = [props['ro.product.cpu.abi']]
if 'ro.product.cpu.abi2' in props:
result.append(props['ro.product.cpu.abi2'])
if 'ro.product.cpu.abilist' in props:
for eabi in props['ro.product.cpu.abilist'].split(','):
if eabi not in result:
result.append(eabi)
return result
def __init__(self, **kwargs):
super(AndroidDevice, self).__init__(**kwargs)
self._logcat_poller = None
def reset(self):
self._is_ready = False
self._just_rebooted = True
adb_command(self.adb_name, 'reboot', timeout=self.default_timeout)
def hard_reset(self):
super(AndroidDevice, self).hard_reset()
self._is_ready = False
self._just_rebooted = True
def boot(self, hard=False, **kwargs):
if hard:
self.hard_reset()
else:
self.reset()
def connect(self): # NOQA pylint: disable=R0912
iteration_number = 0
max_iterations = self.ready_timeout / self.delay
available = False
self.logger.debug('Polling for device {}...'.format(self.adb_name))
while iteration_number < max_iterations:
devices = adb_list_devices()
if self.adb_name:
for device in devices:
if device.name == self.adb_name and device.status != 'offline':
available = True
else: # adb_name not set
if len(devices) == 1:
available = True
elif len(devices) > 1:
raise DeviceError('More than one device is connected and adb_name is not set.')
if available:
break
else:
time.sleep(self.delay)
iteration_number += 1
else:
raise DeviceError('Could not boot {} ({}).'.format(self.name, self.adb_name))
while iteration_number < max_iterations:
available = (int('0' + (adb_shell(self.adb_name, 'getprop sys.boot_completed', timeout=self.default_timeout))) == 1)
if available:
break
else:
time.sleep(self.delay)
iteration_number += 1
else:
raise DeviceError('Could not boot {} ({}).'.format(self.name, self.adb_name))
if self._just_rebooted:
self.logger.debug('Waiting for boot to complete...')
# On some devices, adb connection gets reset some time after booting.
# This causes errors during execution. To prevent this, open a shell
# session and wait for it to be killed. Once its killed, give adb
# enough time to restart, and then the device should be ready.
# TODO: This is more of a work-around rather than an actual solution.
# Need to figure out what is going on the "proper" way of handling it.
try:
adb_shell(self.adb_name, '', timeout=20)
time.sleep(5) # give adb time to re-initialize
except TimeoutError:
pass # timed out waiting for the session to be killed -- assume not going to be.
self.logger.debug('Boot completed.')
self._just_rebooted = False
self._is_ready = True
def initialize(self, context):
if self.is_rooted:
self.disable_screen_lock()
self.disable_selinux()
if self.enable_screen_check:
self.ensure_screen_is_on()
def disconnect(self):
if self._logcat_poller:
self._logcat_poller.close()
def ping(self):
try:
# May be triggered inside initialize()
adb_shell(self.adb_name, 'ls /', timeout=10)
except (TimeoutError, CalledProcessError):
raise DeviceNotRespondingError(self.adb_name or self.name)
def start(self):
if self.logcat_poll_period:
if self._logcat_poller:
self._logcat_poller.close()
self._logcat_poller = _LogcatPoller(self, self.logcat_poll_period, timeout=self.default_timeout)
self._logcat_poller.start()
def stop(self):
if self._logcat_poller:
self._logcat_poller.stop()
def get_android_version(self):
return ANDROID_VERSION_MAP.get(self.get_sdk_version(), None)
def get_android_id(self):
"""
Get the device's ANDROID_ID. Which is
"A 64-bit number (as a hex string) that is randomly generated when the user
first sets up the device and should remain constant for the lifetime of the
user's device."
.. note:: This will get reset on userdata erasure.
"""
output = self.execute('content query --uri content://settings/secure --projection value --where "name=\'android_id\'"').strip()
return output.split('value=')[-1]
def get_sdk_version(self):
try:
return int(self.getprop('ro.build.version.sdk'))
except (ValueError, TypeError):
return None
def get_installed_package_version(self, package):
"""
Returns the version (versionName) of the specified package if it is installed
on the device, or ``None`` otherwise.
Added in version 2.1.4
"""
output = self.execute('dumpsys package {}'.format(package))
for line in convert_new_lines(output).split('\n'):
if 'versionName' in line:
return line.split('=', 1)[1]
return None
def list_packages(self):
"""
List packages installed on the device.
Added in version 2.1.4
"""
output = self.execute('pm list packages')
output = output.replace('package:', '')
return output.split()
def package_is_installed(self, package_name):
"""
Returns ``True`` the if a package with the specified name is installed on
the device, and ``False`` otherwise.
Added in version 2.1.4
"""
return package_name in self.list_packages()
def executable_is_installed(self, executable_name): # pylint: disable=unused-argument,no-self-use
raise AttributeError("""Instead of using is_installed, please use
``get_binary_path`` or ``install_if_needed`` instead. You should
use the path returned by these functions to then invoke the binary
please see: https://pythonhosted.org/wlauto/writing_extensions.html""")
def is_installed(self, name):
if self.package_is_installed(name):
return True
elif "." in name: # assumes android packages have a . in their name and binaries documentation
return False
else:
raise AttributeError("""Instead of using is_installed, please use
``get_binary_path`` or ``install_if_needed`` instead. You should
use the path returned by these functions to then invoke the binary
please see: https://pythonhosted.org/wlauto/writing_extensions.html""")
def listdir(self, path, as_root=False, **kwargs):
contents = self.execute('ls {}'.format(path), as_root=as_root)
return [x.strip() for x in contents.split()]
def push_file(self, source, dest, as_root=False, timeout=default_timeout): # pylint: disable=W0221
"""
Modified in version 2.1.4: added ``as_root`` parameter.
"""
self._check_ready()
try:
if not as_root:
adb_command(self.adb_name, "push '{}' '{}'".format(source, dest), timeout=timeout)
else:
device_tempfile = self.path.join(self.file_transfer_cache, source.lstrip(self.path.sep))
self.execute('mkdir -p {}'.format(self.path.dirname(device_tempfile)))
adb_command(self.adb_name, "push '{}' '{}'".format(source, device_tempfile), timeout=timeout)
self.execute('cp {} {}'.format(device_tempfile, dest), as_root=True)
except CalledProcessError as e:
raise DeviceError(e)
def pull_file(self, source, dest, as_root=False, timeout=default_timeout): # pylint: disable=W0221
"""
Modified in version 2.1.4: added ``as_root`` parameter.
"""
self._check_ready()
try:
if not as_root:
adb_command(self.adb_name, "pull '{}' '{}'".format(source, dest), timeout=timeout)
else:
device_tempfile = self.path.join(self.file_transfer_cache, source.lstrip(self.path.sep))
self.execute('mkdir -p {}'.format(self.path.dirname(device_tempfile)))
self.execute('cp {} {}'.format(source, device_tempfile), as_root=True)
adb_command(self.adb_name, "pull '{}' '{}'".format(device_tempfile, dest), timeout=timeout)
except CalledProcessError as e:
raise DeviceError(e)
def delete_file(self, filepath, as_root=False): # pylint: disable=W0221
self._check_ready()
adb_shell(self.adb_name, "rm '{}'".format(filepath), as_root=as_root, timeout=self.default_timeout)
def file_exists(self, filepath):
self._check_ready()
output = adb_shell(self.adb_name, 'if [ -e \'{}\' ]; then echo 1; else echo 0; fi'.format(filepath),
timeout=self.default_timeout)
return bool(int(output))
def install(self, filepath, timeout=default_timeout, with_name=None): # pylint: disable=W0221
ext = os.path.splitext(filepath)[1].lower()
if ext == '.apk':
return self.install_apk(filepath, timeout)
else:
return self.install_executable(filepath, with_name)
def install_apk(self, filepath, timeout=default_timeout): # pylint: disable=W0221
self._check_ready()
ext = os.path.splitext(filepath)[1].lower()
if ext == '.apk':
return adb_command(self.adb_name, "install {}".format(filepath), timeout=timeout)
else:
raise DeviceError('Can\'t install {}: unsupported format.'.format(filepath))
def install_executable(self, filepath, with_name=None):
"""
Installs a binary executable on device. Returns
the path to the installed binary, or ``None`` if the installation has failed.
Optionally, ``with_name`` parameter may be used to specify a different name under
which the executable will be installed.
Added in version 2.1.3.
Updated in version 2.1.5 with ``with_name`` parameter.
"""
self._ensure_binaries_directory_is_writable()
executable_name = with_name or os.path.basename(filepath)
on_device_file = self.path.join(self.working_directory, executable_name)
on_device_executable = self.path.join(self.binaries_directory, executable_name)
self.push_file(filepath, on_device_file)
self.execute('cp {} {}'.format(on_device_file, on_device_executable), as_root=self.is_rooted)
self.execute('chmod 0777 {}'.format(on_device_executable), as_root=self.is_rooted)
return on_device_executable
def uninstall(self, package):
self._check_ready()
adb_command(self.adb_name, "uninstall {}".format(package), timeout=self.default_timeout)
def uninstall_executable(self, executable_name):
"""
Added in version 2.1.3.
"""
on_device_executable = self.get_binary_path(executable_name, search_system_binaries=False)
if not on_device_executable:
raise DeviceError("Could not uninstall {}, binary not found".format(on_device_executable))
self._ensure_binaries_directory_is_writable()
self.delete_file(on_device_executable, as_root=self.is_rooted)
def execute(self, command, timeout=default_timeout, check_exit_code=True, background=False,
as_root=False, busybox=False, **kwargs):
"""
Execute the specified command on the device using adb.
Parameters:
:param command: The command to be executed. It should appear exactly
as if you were typing it into a shell.
:param timeout: Time, in seconds, to wait for adb to return before aborting
and raising an error. Defaults to ``AndroidDevice.default_timeout``.
:param check_exit_code: If ``True``, the return code of the command on the Device will
be check and exception will be raised if it is not 0.
Defaults to ``True``.
:param background: If ``True``, will execute adb in a subprocess, and will return
immediately, not waiting for adb to return. Defaults to ``False``
:param busybox: If ``True``, will use busybox to execute the command. Defaults to ``False``.
Added in version 2.1.3
.. note:: The device must be rooted to be able to use some busybox features.
:param as_root: If ``True``, will attempt to execute command in privileged mode. The device
must be rooted, otherwise an error will be raised. Defaults to ``False``.
Added in version 2.1.3
:returns: If ``background`` parameter is set to ``True``, the subprocess object will
be returned; otherwise, the contents of STDOUT from the device will be returned.
:raises: DeviceError if adb timed out or if the command returned non-zero exit
code on the device, or if attempting to execute a command in privileged mode on an
unrooted device.
"""
self._check_ready()
if as_root and not self.is_rooted:
raise DeviceError('Attempting to execute "{}" as root on unrooted device.'.format(command))
if busybox:
command = ' '.join([self.busybox, command])
if background:
return adb_background_shell(self.adb_name, command, as_root=as_root)
else:
return adb_shell(self.adb_name, command, timeout, check_exit_code, as_root)
def kick_off(self, command):
"""
Like execute but closes adb session and returns immediately, leaving the command running on the
device (this is different from execute(background=True) which keeps adb connection open and returns
a subprocess object).
.. note:: This relies on busybox's nohup applet and so won't work on unrooted devices.
Added in version 2.1.4
"""
if not self.is_rooted:
raise DeviceError('kick_off uses busybox\'s nohup applet and so can only be run a rooted device.')
try:
command = 'cd {} && busybox nohup {}'.format(self.working_directory, command)
output = self.execute(command, timeout=1, as_root=True)
except TimeoutError:
pass
else:
raise ValueError('Background command exited before timeout; got "{}"'.format(output))
def get_pids_of(self, process_name):
"""Returns a list of PIDs of all processes with the specified name."""
result = self.execute('ps | {} grep {}'.format(self.busybox, process_name),
check_exit_code=False).strip()
if result and 'not found' not in result:
return [int(x.split()[1]) for x in result.split('\n')]
else:
return []
def ps(self, **kwargs):
"""
Returns the list of running processes on the device. Keyword arguments may
be used to specify simple filters for columns.
Added in version 2.1.4
"""
lines = iter(convert_new_lines(self.execute('ps')).split('\n'))
lines.next() # header
result = []
for line in lines:
parts = line.split()
if parts:
result.append(PsEntry(*(parts[0:1] + map(int, parts[1:5]) + parts[5:])))
if not kwargs:
return result
else:
filtered_result = []
for entry in result:
if all(getattr(entry, k) == v for k, v in kwargs.iteritems()):
filtered_result.append(entry)
return filtered_result
def get_properties(self, context):
"""Captures and saves the information from /system/build.prop and /proc/version"""
props = super(AndroidDevice, self).get_properties(context)
props.update(self._get_android_properties(context))
return props
def _get_android_properties(self, context):
props = {}
props['android_id'] = self.get_android_id()
buildprop_file = os.path.join(context.host_working_directory, 'build.prop')
if not os.path.isfile(buildprop_file):
self.pull_file('/system/build.prop', context.host_working_directory)
self._update_build_properties(buildprop_file, props)
context.add_run_artifact('build_properties', buildprop_file, 'export')
dumpsys_target_file = self.path.join(self.working_directory, 'window.dumpsys')
dumpsys_host_file = os.path.join(context.host_working_directory, 'window.dumpsys')
self.execute('{} > {}'.format('dumpsys window', dumpsys_target_file))
self.pull_file(dumpsys_target_file, dumpsys_host_file)
context.add_run_artifact('dumpsys_window', dumpsys_host_file, 'meta')
return props
def getprop(self, prop=None):
"""Returns parsed output of Android getprop command. If a property is
specified, only the value for that property will be returned (with
``None`` returned if the property doesn't exist. Otherwise,
``wlauto.utils.android.AndroidProperties`` will be returned, which is
a dict-like object."""
props = AndroidProperties(self.execute('getprop'))
if prop:
return props[prop]
return props
# Android-specific methods. These either rely on specifics of adb or other
# Android-only concepts in their interface and/or implementation.
def forward_port(self, from_port, to_port):
"""
Forward a port on the device to a port on localhost.
:param from_port: Port on the device which to forward.
:param to_port: Port on the localhost to which the device port will be forwarded.
Ports should be specified using adb spec. See the "adb forward" section in "adb help".
"""
adb_command(self.adb_name, 'forward {} {}'.format(from_port, to_port), timeout=self.default_timeout)
def dump_logcat(self, outfile, filter_spec=None):
"""
Dump the contents of logcat, for the specified filter spec to the
specified output file.
See http://developer.android.com/tools/help/logcat.html
:param outfile: Output file on the host into which the contents of the
log will be written.
:param filter_spec: Logcat filter specification.
see http://developer.android.com/tools/debugging/debugging-log.html#filteringOutput
"""
if self._logcat_poller:
return self._logcat_poller.write_log(outfile)
else:
if filter_spec:
command = 'logcat -d -s {} > {}'.format(filter_spec, outfile)
else:
command = 'logcat -d > {}'.format(outfile)
return adb_command(self.adb_name, command, timeout=self.default_timeout)
def clear_logcat(self):
"""Clear (flush) logcat log."""
if self._logcat_poller:
return self._logcat_poller.clear_buffer()
else:
return adb_shell(self.adb_name, 'logcat -c', timeout=self.default_timeout)
def get_screen_size(self):
output = self.execute('dumpsys window')
match = SCREEN_SIZE_REGEX.search(output)
if match:
return (int(match.group('width')),
int(match.group('height')))
else:
return (0, 0)
def perform_unlock_swipe(self):
width, height = self.get_screen_size()
command = 'input swipe {} {} {} {}'
if self.swipe_to_unlock == "horizontal":
swipe_heigh = height * 2 // 3
start = 100
stop = width - start
self.execute(command.format(start, swipe_heigh, stop, swipe_heigh))
if self.swipe_to_unlock == "vertical":
swipe_middle = height / 2
swipe_heigh = height * 2 // 3
self.execute(command.format(swipe_middle, swipe_heigh, swipe_middle, 0))
else: # Should never reach here
raise DeviceError("Invalid swipe direction: {}".format(self.swipe_to_unlock))
def capture_screen(self, filepath):
"""Caputers the current device screen into the specified file in a PNG format."""
on_device_file = self.path.join(self.working_directory, 'screen_capture.png')
self.execute('screencap -p {}'.format(on_device_file))
self.pull_file(on_device_file, filepath)
self.delete_file(on_device_file)
def is_screen_on(self):
"""Returns ``True`` if the device screen is currently on, ``False`` otherwise."""
output = self.execute('dumpsys power')
match = SCREEN_STATE_REGEX.search(output)
if match:
return boolean(match.group(1))
else:
raise DeviceError('Could not establish screen state.')
def ensure_screen_is_on(self):
if not self.is_screen_on():
self.execute('input keyevent 26')
if self.swipe_to_unlock:
self.perform_unlock_swipe()
def disable_screen_lock(self):
"""
Attempts to disable he screen lock on the device.
.. note:: This does not always work...
Added inversion 2.1.4
"""
lockdb = '/data/system/locksettings.db'
sqlcommand = "update locksettings set value='0' where name='screenlock.disabled';"
self.execute('sqlite3 {} "{}"'.format(lockdb, sqlcommand), as_root=True)
def disable_selinux(self):
# This may be invoked from intialize() so we can't use execute() or the
# standard API for doing this.
api_level = int(adb_shell(self.adb_name, 'getprop ro.build.version.sdk',
timeout=self.default_timeout).strip())
# SELinux was added in Android 4.3 (API level 18). Trying to
# 'getenforce' in earlier versions will produce an error.
if api_level >= 18:
se_status = self.execute('getenforce', as_root=True).strip()
if se_status == 'Enforcing':
self.execute('setenforce 0', as_root=True)
def get_device_model(self):
try:
return self.getprop(prop='ro.product.device')
except KeyError:
return None
# Internal methods: do not use outside of the class.
def _update_build_properties(self, filepath, props):
try:
with open(filepath) as fh:
for line in fh:
line = re.sub(r'#.*', '', line).strip()
if not line:
continue
key, value = line.split('=', 1)
props[key] = value
except ValueError:
self.logger.warning('Could not parse build.prop.')
def _update_versions(self, filepath, props):
with open(filepath) as fh:
text = fh.read()
props['version'] = text
text = re.sub(r'#.*', '', text).strip()
match = re.search(r'^(Linux version .*?)\s*\((gcc version .*)\)$', text)
if match:
props['linux_version'] = match.group(1).strip()
props['gcc_version'] = match.group(2).strip()
else:
self.logger.warning('Could not parse version string.')
def _ensure_binaries_directory_is_writable(self):
matched = []
for entry in self.list_file_systems():
if self.binaries_directory.rstrip('/').startswith(entry.mount_point):
matched.append(entry)
if matched:
entry = sorted(matched, key=lambda x: len(x.mount_point))[-1]
if 'rw' not in entry.options:
self.execute('mount -o rw,remount {} {}'.format(entry.device, entry.mount_point), as_root=True)
else:
raise DeviceError('Could not find mount point for binaries directory {}'.format(self.binaries_directory))
class _LogcatPoller(threading.Thread):
join_timeout = 5
def __init__(self, device, period, timeout=None):
super(_LogcatPoller, self).__init__()
self.adb_device = device.adb_name
self.logger = device.logger
self.period = period
self.timeout = timeout
self.stop_signal = threading.Event()
self.lock = threading.RLock()
self.buffer_file = tempfile.mktemp()
self.last_poll = 0
self.daemon = True
self.exc = None
def run(self):
self.logger.debug('Starting logcat polling.')
try:
while True:
if self.stop_signal.is_set():
break
with self.lock:
current_time = time.time()
if (current_time - self.last_poll) >= self.period:
self._poll()
time.sleep(0.5)
except Exception: # pylint: disable=W0703
self.exc = WorkerThreadError(self.name, sys.exc_info())
self.logger.debug('Logcat polling stopped.')
def stop(self):
self.logger.debug('Stopping logcat polling.')
self.stop_signal.set()
self.join(self.join_timeout)
if self.is_alive():
self.logger.error('Could not join logcat poller thread.')
if self.exc:
raise self.exc # pylint: disable=E0702
def clear_buffer(self):
self.logger.debug('Clearing logcat buffer.')
with self.lock:
adb_shell(self.adb_device, 'logcat -c', timeout=self.timeout)
with open(self.buffer_file, 'w') as _: # NOQA
pass
def write_log(self, outfile):
self.logger.debug('Writing logbuffer to {}.'.format(outfile))
with self.lock:
self._poll()
if os.path.isfile(self.buffer_file):
shutil.copy(self.buffer_file, outfile)
else: # there was no logcat trace at this time
with open(outfile, 'w') as _: # NOQA
pass
def close(self):
self.logger.debug('Closing logcat poller.')
if os.path.isfile(self.buffer_file):
os.remove(self.buffer_file)
def _poll(self):
with self.lock:
self.last_poll = time.time()
adb_command(self.adb_device, 'logcat -d >> {}'.format(self.buffer_file), timeout=self.timeout)
adb_command(self.adb_device, 'logcat -c', timeout=self.timeout)
class BigLittleDevice(AndroidDevice): # pylint: disable=W0223
parameters = [
Parameter('scheduler', default='hmp', override=True),
]

684
wlauto/common/gem5/device.py
View File

@@ -1,684 +0,0 @@
# Copyright 2014-2015 ARM Limited
#
# 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.
#
# Original implementation by Rene de Jong. Updated by Sascha Bischoff.
# pylint: disable=E1101
import logging
import os
import re
import shutil
import socket
import subprocess
import sys
import tarfile
import time
from pexpect import EOF, TIMEOUT, pxssh
from wlauto import settings, Parameter
from wlauto.core.resource import NO_ONE
from wlauto.common.resources import Executable
from wlauto.core import signal as sig
from wlauto.exceptions import DeviceError
from wlauto.utils import ssh, types
class BaseGem5Device(object):
"""
Base implementation for a gem5-based device
This class is used as the base class for OS-specific devices such as the
G3m5LinuxDevice and the Gem5AndroidDevice. The majority of the gem5-specific
functionality is included here.
Note: When inheriting from this class, make sure to inherit from this class
prior to inheriting from the OS-specific class, i.e. LinuxDevice, to ensure
that the methods are correctly overridden.
"""
# gem5 can be very slow. Hence, we use some very long timeouts!
delay = 3600
long_delay = 3 * delay
ready_timeout = long_delay
default_timeout = delay
platform = None
path_module = 'posixpath'
parameters = [
Parameter('gem5_binary', kind=str, default='./build/ARM/gem5.fast',
mandatory=False, description="Command used to execute gem5. "
"Adjust according to needs."),
Parameter('gem5_args', kind=types.arguments, mandatory=True,
description="Command line passed to the gem5 simulation. This"
" command line is used to set up the simulated system, and "
"should be the same as used for a standard gem5 simulation "
"without workload automation. Note that this is simulation "
"script specific and will hence need to be tailored to each "
"particular use case."),
Parameter('gem5_vio_args', kind=types.arguments, mandatory=True,
constraint=lambda x: "{}" in str(x),
description="gem5 VirtIO command line used to enable the "
"VirtIO device in the simulated system. At the very least, "
"the root parameter of the VirtIO9PDiod device must be "
"exposed on the command line. Please set this root mount to "
"{}, as it will be replaced with the directory used by "
"Workload Automation at runtime."),
Parameter('temp_dir', kind=str, default='/tmp',
description="Temporary directory used to pass files into the "
"gem5 simulation. Workload Automation will automatically "
"create a directory in this folder, and will remove it again "
"once the simulation completes."),
Parameter('checkpoint', kind=bool, default=False,
mandatory=False, description="This parameter "
"tells Workload Automation to create a checkpoint of the "
"simulated system once the guest system has finished booting."
" This checkpoint can then be used at a later stage by other "
"WA runs to avoid booting the guest system a second time. Set"
" to True to take a checkpoint of the simulated system post "
"boot."),
Parameter('run_delay', kind=int, default=0, mandatory=False,
constraint=lambda x: x >= 0,
description="This sets the time that the "
"system should sleep in the simulated system prior to "
"running and workloads or taking checkpoints. This allows "
"the system to quieten down prior to running the workloads. "
"When this is combined with the checkpoint_post_boot"
" option, it allows the checkpoint to be created post-sleep,"
" and therefore the set of workloads resuming from this "
"checkpoint will not be required to sleep.")
]
@property
def is_rooted(self): # pylint: disable=R0201
# gem5 is always rooted
return True
# pylint: disable=E0203
def __init__(self):
self.logger = logging.getLogger('gem5Device')
# The gem5 subprocess
self.gem5 = None
self.gem5_port = -1
self.gem5outdir = os.path.join(settings.output_directory, "gem5")
self.m5_path = 'm5'
self.stdout_file = None
self.stderr_file = None
self.stderr_filename = None
self.sckt = None
# Find the first one that does not exist. Ensures that we do not re-use
# the directory used by someone else.
for i in xrange(sys.maxint):
directory = os.path.join(self.temp_dir, "wa_{}".format(i))
try:
os.stat(directory)
continue
except OSError:
break
self.temp_dir = directory
self.logger.debug("Using {} as the temporary directory.".format(self.temp_dir))
# Start the gem5 simulation when WA starts a run using a signal.
sig.connect(self.init_gem5, sig.RUN_START)
def validate(self):
# Assemble the virtio args
self.gem5_vio_args = str(self.gem5_vio_args).format(self.temp_dir) # pylint: disable=W0201
self.logger.debug("gem5 VirtIO command: {}".format(self.gem5_vio_args))
def init_gem5(self, _):
"""
Start gem5, find out the telnet port and connect to the simulation.
We first create the temporary directory used by VirtIO to pass files
into the simulation, as well as the gem5 output directory.We then create
files for the standard output and error for the gem5 process. The gem5
process then is started.
"""
self.logger.info("Creating temporary directory: {}".format(self.temp_dir))
os.mkdir(self.temp_dir)
os.mkdir(self.gem5outdir)
# We need to redirect the standard output and standard error for the
# gem5 process to a file so that we can debug when things go wrong.
f = os.path.join(self.gem5outdir, 'stdout')
self.stdout_file = open(f, 'w')
f = os.path.join(self.gem5outdir, 'stderr')
self.stderr_file = open(f, 'w')
# We need to keep this so we can check which port to use for the telnet
# connection.
self.stderr_filename = f
self.start_gem5()
def start_gem5(self):
"""
Starts the gem5 simulator, and parses the output to get the telnet port.
"""
self.logger.info("Starting the gem5 simulator")
command_line = "{} --outdir={}/gem5 {} {}".format(self.gem5_binary,
settings.output_directory,
self.gem5_args,
self.gem5_vio_args)
self.logger.debug("gem5 command line: {}".format(command_line))
self.gem5 = subprocess.Popen(command_line.split(),
stdout=self.stdout_file,
stderr=self.stderr_file)
while self.gem5_port == -1:
# Check that gem5 is running!
if self.gem5.poll():
raise DeviceError("The gem5 process has crashed with error code {}!".format(self.gem5.poll()))
# Open the stderr file
f = open(self.stderr_filename, 'r')
for line in f:
m = re.search(r"Listening\ for\ system\ connection\ on\ port\ (?P<port>\d+)", line)
if m:
port = int(m.group('port'))
if port >= 3456 and port < 5900:
self.gem5_port = port
f.close()
break
else:
time.sleep(1)
f.close()
def connect(self): # pylint: disable=R0912,W0201
"""
Connect to the gem5 simulation and wait for Android to boot. Then,
create checkpoints, and mount the VirtIO device.
"""
self.connect_gem5()
self.wait_for_boot()
if self.run_delay:
self.logger.info("Sleeping for {} seconds in the guest".format(self.run_delay))
self.gem5_shell("sleep {}".format(self.run_delay))
if self.checkpoint:
self.checkpoint_gem5()
self.mount_virtio()
self.logger.info("Creating the working directory in the simulated system")
self.gem5_shell('mkdir -p {}'.format(self.working_directory))
self._is_ready = True # pylint: disable=W0201
def wait_for_boot(self):
pass
def connect_gem5(self): # pylint: disable=R0912
"""
Connect to the telnet port of the gem5 simulation.
We connect, and wait for the prompt to be found. We do not use a timeout
for this, and wait for the prompt in a while loop as the gem5 simulation
can take many hours to reach a prompt when booting the system. We also
inject some newlines periodically to try and force gem5 to show a
prompt. Once the prompt has been found, we replace it with a unique
prompt to ensure that we are able to match it properly. We also disable
the echo as this simplifies parsing the output when executing commands
on the device.
"""
self.logger.info("Connecting to the gem5 simulation on port {}".format(self.gem5_port))
host = socket.gethostname()
port = self.gem5_port
# Connect to the gem5 telnet port. Use a short timeout here.
attempts = 0
while attempts < 10:
attempts += 1
try:
self.sckt = ssh.TelnetConnection()
self.sckt.login(host, 'None', port=port, auto_prompt_reset=False,
login_timeout=10)
break
except pxssh.ExceptionPxssh:
pass
else:
self.gem5.kill()
raise DeviceError("Failed to connect to the gem5 telnet session.")
self.logger.info("Connected! Waiting for prompt...")
# We need to find the prompt. It might be different if we are resuming
# from a checkpoint. Therefore, we test multiple options here.
prompt_found = False
while not prompt_found:
try:
self.login_to_device()
except TIMEOUT:
pass
try:
# Try and force a prompt to be shown
self.sckt.send('\n')
self.sckt.expect([r'# ', self.sckt.UNIQUE_PROMPT, r'\[PEXPECT\][\\\$\#]+ '], timeout=60)
prompt_found = True
except TIMEOUT:
pass
self.logger.info("Setting unique prompt...")
self.sckt.set_unique_prompt()
self.sckt.prompt()
self.logger.info("Prompt found and replaced with a unique string")
# We check that the prompt is what we think it should be. If not, we
# need to update the regex we use to match.
self.find_prompt()
self.sckt.setecho(False)
self.sync_gem5_shell()
self.resize_shell()
def get_properties(self, context): # pylint: disable=R0801
""" Get the property files from the device """
for propfile in self.property_files:
try:
normname = propfile.lstrip(self.path.sep).replace(self.path.sep, '.')
outfile = os.path.join(context.host_working_directory, normname)
if self.is_file(propfile):
self.execute('cat {} > {}'.format(propfile, normname))
self.pull_file(normname, outfile)
elif self.is_directory(propfile):
self.get_directory(context, propfile)
continue
else:
continue
except DeviceError:
# We pull these files "opportunistically", so if a pull fails
# (e.g. we don't have permissions to read the file), just note
# it quietly (not as an error/warning) and move on.
self.logger.debug('Could not pull property file "{}"'.format(propfile))
return {}
def get_directory(self, context, directory):
""" Pull a directory from the device """
normname = directory.lstrip(self.path.sep).replace(self.path.sep, '.')
outdir = os.path.join(context.host_working_directory, normname)
temp_file = os.path.join(context.host_working_directory, "{}.tar".format(normname))
# Check that the folder exists
self.gem5_shell("ls -la {}".format(directory))
# Compress the folder
try:
self.gem5_shell("{} tar -cvf {}.tar {}".format(self.busybox, normname, directory))
except DeviceError:
self.logger.debug("Failed to run tar command on device! Not pulling {}".format(directory))
return
self.pull_file(normname, temp_file)
f = tarfile.open(temp_file, 'r')
os.mkdir(outdir)
f.extractall(outdir)
os.remove(temp_file)
def get_pids_of(self, process_name):
""" Returns a list of PIDs of all processes with the specified name. """
result = self.gem5_shell('ps | {} grep {}'.format(self.busybox, process_name),
check_exit_code=False).strip()
if result and 'not found' not in result and len(result.split('\n')) > 2:
return [int(x.split()[1]) for x in result.split('\n')]
else:
return []
def find_prompt(self):
prompt = r'\[PEXPECT\][\\\$\#]+ '
synced = False
while not synced:
self.sckt.send('\n')
i = self.sckt.expect([prompt, self.sckt.UNIQUE_PROMPT, r'[\$\#] '], timeout=self.delay)
if i == 0:
synced = True
elif i == 1:
prompt = self.sckt.UNIQUE_PROMPT
synced = True
else:
prompt = re.sub(r'\$', r'\\\$', self.sckt.before.strip() + self.sckt.after.strip())
prompt = re.sub(r'\#', r'\\\#', prompt)
prompt = re.sub(r'\[', r'\[', prompt)
prompt = re.sub(r'\]', r'\]', prompt)
self.sckt.PROMPT = prompt
def close(self):
if self._logcat_poller:
self._logcat_poller.stop()
def reset(self):
self.logger.warn("Attempt to restart the gem5 device. This is not "
"supported!")
# pylint: disable=unused-argument
def push_file(self, source, dest, **kwargs):
"""
Push a file to the gem5 device using VirtIO
The file to push to the device is copied to the temporary directory on
the host, before being copied within the simulation to the destination.
Checks, in the form of 'ls' with error code checking, are performed to
ensure that the file is copied to the destination.
"""
filename = os.path.basename(source)
self.logger.debug("Pushing {} to device.".format(source))
self.logger.debug("temp_dir: {}".format(self.temp_dir))
self.logger.debug("dest: {}".format(dest))
self.logger.debug("filename: {}".format(filename))
# We need to copy the file to copy to the temporary directory
self.move_to_temp_dir(source)
# Back to the gem5 world
self.gem5_shell("ls -al /mnt/obb/{}".format(filename))
if self.busybox:
self.gem5_shell("{} cp /mnt/obb/{} {}".format(self.busybox, filename, dest))
else:
self.gem5_shell("cat /mnt/obb/{} > {}".format(filename, dest))
self.gem5_shell("sync")
self.gem5_shell("ls -al {}".format(dest))
self.gem5_shell("ls -al /mnt/obb/")
self.logger.debug("Push complete.")
# pylint: disable=unused-argument
def pull_file(self, source, dest, **kwargs):
"""
Pull a file from the gem5 device using m5 writefile
The file is copied to the local directory within the guest as the m5
writefile command assumes that the file is local. The file is then
written out to the host system using writefile, prior to being moved to
the destination on the host.
"""
filename = os.path.basename(source)
self.logger.debug("pull_file {} {}".format(source, filename))
# We don't check the exit code here because it is non-zero if the source
# and destination are the same. The ls below will cause an error if the
# file was not where we expected it to be.
self.gem5_shell("{} cp {} {}".format(self.busybox, source, filename),
check_exit_code=False)
self.gem5_shell("sync")
self.gem5_shell("ls -la {}".format(filename))
self.logger.debug('Finished the copy in the simulator')
self.gem5_util("writefile {}".format(filename))
if 'cpu' not in filename:
while not os.path.exists(os.path.join(self.gem5outdir, filename)):
time.sleep(1)
# Perform the local move
shutil.move(os.path.join(self.gem5outdir, filename), dest)
self.logger.debug("Pull complete.")
# pylint: disable=unused-argument
def delete_file(self, filepath, **kwargs):
""" Delete a file on the device """
self._check_ready()
self.gem5_shell("rm '{}'".format(filepath))
def file_exists(self, filepath):
""" Check if a file exists """
self._check_ready()
output = self.gem5_shell('if [ -e \'{}\' ]; then echo 1; else echo 0; fi'.format(filepath))
try:
if int(output):
return True
except ValueError:
# If we cannot process the output, assume that there is no file
pass
return False
def disconnect(self):
"""
Close and disconnect from the gem5 simulation. Additionally, we remove
the temporary directory used to pass files into the simulation.
"""
self.logger.info("Gracefully terminating the gem5 simulation.")
try:
self.gem5_util("exit")
self.gem5.wait()
except EOF:
pass
self.logger.info("Removing the temporary directory")
try:
shutil.rmtree(self.temp_dir)
except OSError:
self.logger.warn("Failed to remove the temporary directory!")
# gem5 might be slow. Hence, we need to make the ping timeout very long.
def ping(self):
self.logger.debug("Pinging gem5 to see if it is still alive")
self.gem5_shell('ls /', timeout=self.longdelay)
# Additional Android-specific methods.
def forward_port(self, _): # pylint: disable=R0201
raise DeviceError('we do not need forwarding')
# gem5 should dump out a framebuffer. We can use this if it exists. Failing
# that, fall back to the parent class implementation.
def capture_screen(self, filepath):
file_list = os.listdir(self.gem5outdir)
screen_caps = []
for f in file_list:
if '.bmp' in f:
screen_caps.append(f)
if len(screen_caps) == 1:
# Bail out if we do not have image, and resort to the slower, built
# in method.
try:
import Image
gem5_image = os.path.join(self.gem5outdir, screen_caps[0])
temp_image = os.path.join(self.gem5outdir, "file.png")
im = Image.open(gem5_image)
im.save(temp_image, "PNG")
shutil.copy(temp_image, filepath)
os.remove(temp_image)
self.logger.debug("capture_screen: using gem5 screencap")
return True
except (shutil.Error, ImportError, IOError):
pass
return False
# pylint: disable=W0613
def execute(self, command, timeout=1000, check_exit_code=True, background=False,
as_root=False, busybox=False, **kwargs):
self._check_ready()
if as_root and not self.is_rooted:
raise DeviceError('Attempting to execute "{}" as root on unrooted device.'.format(command))
if busybox:
if not self.is_rooted:
raise DeviceError('Attempting to execute "{}" with busybox. '.format(command) +
'Busybox can only be deployed to rooted devices.')
command = ' '.join([self.busybox, command])
if background:
self.logger.debug("Attempt to execute in background. Not supported "
"in gem5, hence ignored.")
return self.gem5_shell(command, as_root=as_root)
# Internal methods: do not use outside of the class.
def _check_ready(self):
"""
Check if the device is ready.
As this is gem5, we just assume that the device is ready once we have
connected to the gem5 simulation, and updated the prompt.
"""
if not self._is_ready:
raise DeviceError('Device not ready.')
def gem5_shell(self, command, as_root=False, timeout=None, check_exit_code=True, sync=True): # pylint: disable=R0912
"""
Execute a command in the gem5 shell
This wraps the telnet connection to gem5 and processes the raw output.
This method waits for the shell to return, and then will try and
separate the output from the command from the command itself. If this
fails, warn, but continue with the potentially wrong output.
The exit code is also checked by default, and non-zero exit codes will
raise a DeviceError.
"""
conn = self.sckt
if sync:
self.sync_gem5_shell()
self.logger.debug("gem5_shell command: {}".format(command))
# Send the actual command
conn.send("{}\n".format(command))
# Wait for the response. We just sit here and wait for the prompt to
# appear, as gem5 might take a long time to provide the output. This
# avoids timeout issues.
command_index = -1
while command_index == -1:
if conn.prompt():
output = re.sub(r' \r([^\n])', r'\1', conn.before)
output = re.sub(r'[\b]', r'', output)
# Deal with line wrapping
output = re.sub(r'[\r].+?<', r'', output)
command_index = output.find(command)
# If we have -1, then we cannot match the command, but the
# prompt has returned. Hence, we have a bit of an issue. We
# warn, and return the whole output.
if command_index == -1:
self.logger.warn("gem5_shell: Unable to match command in "
"command output. Expect parsing errors!")
command_index = 0
output = output[command_index + len(command):].strip()
# It is possible that gem5 will echo the command. Therefore, we need to
# remove that too!
command_index = output.find(command)
if command_index != -1:
output = output[command_index + len(command):].strip()
self.logger.debug("gem5_shell output: {}".format(output))
# We get a second prompt. Hence, we need to eat one to make sure that we
# stay in sync. If we do not do this, we risk getting out of sync for
# slower simulations.
self.sckt.expect([self.sckt.UNIQUE_PROMPT, self.sckt.PROMPT], timeout=self.delay)
if check_exit_code:
exit_code_text = self.gem5_shell('echo $?', as_root=as_root,
timeout=timeout, check_exit_code=False,
sync=False)
try:
exit_code = int(exit_code_text.split()[0])
if exit_code:
message = 'Got exit code {}\nfrom: {}\nOUTPUT: {}'
raise DeviceError(message.format(exit_code, command, output))
except (ValueError, IndexError):
self.logger.warning('Could not get exit code for "{}",\ngot: "{}"'.format(command, exit_code_text))
return output
def gem5_util(self, command):
""" Execute a gem5 utility command using the m5 binary on the device """
self.gem5_shell('{} {}'.format(self.m5_path, command))
def sync_gem5_shell(self):
"""
Synchronise with the gem5 shell.
Write some unique text to the gem5 device to allow us to synchronise
with the shell output. We actually get two prompts so we need to match
both of these.
"""
self.logger.debug("Sending Sync")
self.sckt.send("echo \*\*sync\*\*\n")
self.sckt.expect(r"\*\*sync\*\*", timeout=self.delay)
self.sckt.expect([self.sckt.UNIQUE_PROMPT, self.sckt.PROMPT], timeout=self.delay)
self.sckt.expect([self.sckt.UNIQUE_PROMPT, self.sckt.PROMPT], timeout=self.delay)
def resize_shell(self):
"""
Resize the shell to avoid line wrapping issues.
"""
# Try and avoid line wrapping as much as possible. Don't check the error
# codes from these command because some of them WILL fail.
self.gem5_shell('stty columns 1024', check_exit_code=False)
self.gem5_shell('{} stty columns 1024'.format(self.busybox), check_exit_code=False)
self.gem5_shell('stty cols 1024', check_exit_code=False)
self.gem5_shell('{} stty cols 1024'.format(self.busybox), check_exit_code=False)
self.gem5_shell('reset', check_exit_code=False)
def move_to_temp_dir(self, source):
"""
Move a file to the temporary directory on the host for copying to the
gem5 device
"""
command = "cp {} {}".format(source, self.temp_dir)
self.logger.debug("Local copy command: {}".format(command))
subprocess.call(command.split())
subprocess.call("sync".split())
def checkpoint_gem5(self, end_simulation=False):
""" Checkpoint the gem5 simulation, storing all system state """
self.logger.info("Taking a post-boot checkpoint")
self.gem5_util("checkpoint")
if end_simulation:
self.disconnect()
def mount_virtio(self):
"""
Mount the VirtIO device in the simulated system.
"""
self.logger.info("Mounting VirtIO device in simulated system")
self.gem5_shell('mkdir -p /mnt/obb')
mount_command = "mount -t 9p -o trans=virtio,version=9p2000.L,aname={} gem5 /mnt/obb".format(self.temp_dir)
self.gem5_shell(mount_command)
def deploy_m5(self, context, force=False):
"""
Deploys the m5 binary to the device and returns the path to the binary
on the device.
:param force: by default, if the binary is already present on the
device, it will not be deployed again. Setting force to
``True`` overrides that behaviour and ensures that the
binary is always copied. Defaults to ``False``.
:returns: The on-device path to the m5 binary.
"""
on_device_executable = self.path.join(self.binaries_directory, 'm5')
if not force and self.file_exists(on_device_executable):
# We want to check the version of the binary. We cannot directly
# check this because the m5 binary itself is unversioned. We also
# need to make sure not to check the error code as "m5 --help"
# returns a non-zero error code.
output = self.gem5_shell('m5 --help', check_exit_code=False)
if "writefile" in output:
self.logger.debug("Using the m5 binary on the device...")
self.m5_path = on_device_executable
return on_device_executable
else:
self.logger.debug("m5 on device does not support writefile!")
host_file = context.resolver.get(Executable(NO_ONE, self.abi, 'm5'))
self.logger.info("Installing the m5 binary to the device...")
self.m5_path = self.install(host_file)
return self.m5_path

16
wlauto/common/linux/__init__.py
View File

@@ -1,16 +0,0 @@
# Copyright 2014-2015 ARM Limited
#
# 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.
#

875
wlauto/common/linux/device.py
View File

@@ -1,875 +0,0 @@
# Copyright 2014-2015 ARM Limited
#
# 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.
#
# pylint: disable=E1101
import os
import re
import time
import socket
from collections import namedtuple
from subprocess import CalledProcessError
from wlauto.core.extension import Parameter
from wlauto.core.device import Device, RuntimeParameter, CoreParameter
from wlauto.core.resource import NO_ONE
from wlauto.exceptions import ConfigError, DeviceError, TimeoutError, DeviceNotRespondingError
from wlauto.common.resources import Executable
from wlauto.utils.cpuinfo import Cpuinfo
from wlauto.utils.misc import convert_new_lines, escape_double_quotes, ranges_to_list, ABI_MAP
from wlauto.utils.misc import isiterable, list_to_mask
from wlauto.utils.ssh import SshShell
from wlauto.utils.types import boolean, list_of_strings
FSTAB_ENTRY_REGEX = re.compile(r'(\S+) on (\S+) type (\S+) \((\S+)\)')
FstabEntry = namedtuple('FstabEntry', ['device', 'mount_point', 'fs_type', 'options', 'dump_freq', 'pass_num'])
PsEntry = namedtuple('PsEntry', 'user pid ppid vsize rss wchan pc state name')
LsmodEntry = namedtuple('LsmodEntry', ['name', 'size', 'use_count', 'used_by'])
class BaseLinuxDevice(Device): # pylint: disable=abstract-method
path_module = 'posixpath'
has_gpu = True
parameters = [
Parameter('scheduler', kind=str, default='unknown',
allowed_values=['unknown', 'smp', 'hmp', 'iks', 'ea', 'other'],
description="""
Specifies the type of multi-core scheduling model utilized in the device. The value
must be one of the following:
:unknown: A generic Device interface is used to interact with the underlying device
and the underlying scheduling model is unkown.
:smp: A standard single-core or Symmetric Multi-Processing system.
:hmp: ARM Heterogeneous Multi-Processing system.
:iks: Linaro In-Kernel Switcher.
:ea: ARM Energy-Aware scheduler.
:other: Any other system not covered by the above.
.. note:: most currently-available systems would fall under ``smp`` rather than
this value. ``other`` is there to future-proof against new schemes
not yet covered by WA.
"""),
Parameter('iks_switch_frequency', kind=int, default=None,
description="""
This is the switching frequency, in kilohertz, of IKS devices. This parameter *MUST NOT*
be set for non-IKS device (i.e. ``scheduler != 'iks'``). If left unset for IKS devices,
it will default to ``800000``, i.e. 800MHz.
"""),
Parameter('property_files', kind=list_of_strings,
default=[
'/etc/arch-release',
'/etc/debian_version',
'/etc/lsb-release',
'/proc/config.gz',
'/proc/cmdline',
'/proc/cpuinfo',
'/proc/version',
'/proc/zconfig',
'/sys/kernel/debug/sched_features',
'/sys/kernel/hmp',
],
description='''
A list of paths to files containing static OS properties. These will be pulled into the
__meta directory in output for each run in order to provide information about the platfrom.
These paths do not have to exist and will be ignored if the path is not present on a
particular device.
'''),
Parameter('binaries_directory',
description='Location of executable binaries on this device (must be in PATH).'),
]
runtime_parameters = [
RuntimeParameter('sysfile_values', 'get_sysfile_values', 'set_sysfile_values', value_name='params'),
CoreParameter('${core}_cores', 'get_number_of_online_cpus', 'set_number_of_online_cpus',
value_name='number'),
CoreParameter('${core}_min_frequency', 'get_core_min_frequency', 'set_core_min_frequency',
value_name='freq'),
CoreParameter('${core}_max_frequency', 'get_core_max_frequency', 'set_core_max_frequency',
value_name='freq'),
CoreParameter('${core}_frequency', 'get_core_cur_frequency', 'set_core_cur_frequency',
value_name='freq'),
CoreParameter('${core}_governor', 'get_core_governor', 'set_core_governor',
value_name='governor'),
CoreParameter('${core}_governor_tunables', 'get_core_governor_tunables', 'set_core_governor_tunables',
value_name='tunables'),
]
dynamic_modules = [
'devcpufreq',
'cpuidle',
]
@property
def abi(self):
if not self._abi:
val = self.execute('uname -m').strip()
for abi, architectures in ABI_MAP.iteritems():
if val in architectures:
self._abi = abi
break
else:
self._abi = val
return self._abi
@property
def online_cpus(self):
val = self.get_sysfile_value('/sys/devices/system/cpu/online')
return ranges_to_list(val)
@property
def number_of_cores(self):
"""
Added in version 2.1.4.
"""
if self._number_of_cores is None:
corere = re.compile(r'^\s*cpu\d+\s*$')
output = self.execute('ls /sys/devices/system/cpu')
self._number_of_cores = 0
for entry in output.split():
if corere.match(entry):
self._number_of_cores += 1
return self._number_of_cores
@property
def resource_cache(self):
return self.path.join(self.working_directory, '.cache')
@property
def file_transfer_cache(self):
return self.path.join(self.working_directory, '.transfer')
@property
def cpuinfo(self):
if not self._cpuinfo:
self._cpuinfo = Cpuinfo(self.execute('cat /proc/cpuinfo'))
return self._cpuinfo
def __init__(self, **kwargs):
super(BaseLinuxDevice, self).__init__(**kwargs)
self.busybox = None
self._is_initialized = False
self._is_ready = False
self._just_rebooted = False
self._is_rooted = None
self._is_root_user = False
self._available_frequencies = {}
self._available_governors = {}
self._available_governor_tunables = {}
self._number_of_cores = None
self._written_sysfiles = []
self._cpuinfo = None
self._abi = None
def validate(self):
if self.iks_switch_frequency is not None and self.scheduler != 'iks': # pylint: disable=E0203
raise ConfigError('iks_switch_frequency must NOT be set for non-IKS devices.')
if self.iks_switch_frequency is None and self.scheduler == 'iks': # pylint: disable=E0203
self.iks_switch_frequency = 800000 # pylint: disable=W0201
def initialize(self, context):
self.execute('mkdir -p {}'.format(self.working_directory))
if not self.binaries_directory:
self._set_binaries_dir()
self.execute('mkdir -p {}'.format(self.binaries_directory))
self.busybox = self.deploy_busybox(context)
def _set_binaries_dir(self):
# pylint: disable=attribute-defined-outside-init
self.binaries_directory = self.path.join(self.working_directory, "bin")
def is_file(self, filepath):
output = self.execute('if [ -f \'{}\' ]; then echo 1; else echo 0; fi'.format(filepath))
# output from ssh my contain part of the expression in the buffer,
# split out everything except the last word.
return boolean(output.split()[-1]) # pylint: disable=maybe-no-member
def is_directory(self, filepath):
output = self.execute('if [ -d \'{}\' ]; then echo 1; else echo 0; fi'.format(filepath))
# output from ssh my contain part of the expression in the buffer,
# split out everything except the last word.
return boolean(output.split()[-1]) # pylint: disable=maybe-no-member
def get_properties(self, context):
for propfile in self.property_files:
try:
normname = propfile.lstrip(self.path.sep).replace(self.path.sep, '.')
outfile = os.path.join(context.host_working_directory, normname)
if self.is_file(propfile):
with open(outfile, 'w') as wfh:
wfh.write(self.execute('cat {}'.format(propfile)))
elif self.is_directory(propfile):
self.pull_file(propfile, outfile)
else:
continue
except DeviceError:
# We pull these files "opportunistically", so if a pull fails
# (e.g. we don't have permissions to read the file), just note
# it quietly (not as an error/warning) and move on.
self.logger.debug('Could not pull property file "{}"'.format(propfile))
return {}
def get_sysfile_value(self, sysfile, kind=None):
"""
Get the contents of the specified sysfile.
:param sysfile: The file who's contents will be returned.
:param kind: The type of value to be expected in the sysfile. This can
be any Python callable that takes a single str argument.
If not specified or is None, the contents will be returned
as a string.
"""
output = self.execute('cat \'{}\''.format(sysfile), as_root=self.is_rooted).strip() # pylint: disable=E1103
if kind:
return kind(output)
else:
return output
def set_sysfile_value(self, sysfile, value, verify=True):
"""
Set the value of the specified sysfile. By default, the value will be checked afterwards.
Can be overridden by setting ``verify`` parameter to ``False``.
"""
value = str(value)
self.execute('echo {} > \'{}\''.format(value, sysfile), check_exit_code=False, as_root=True)
if verify:
output = self.get_sysfile_value(sysfile)
if output.strip() != value: # pylint: disable=E1103
message = 'Could not set the value of {} to {}'.format(sysfile, value)
raise DeviceError(message)
self._written_sysfiles.append(sysfile)
def get_sysfile_values(self):
"""
Returns a dict mapping paths of sysfiles that were previously set to their
current values.
"""
values = {}
for sysfile in self._written_sysfiles:
values[sysfile] = self.get_sysfile_value(sysfile)
return values
def set_sysfile_values(self, params):
"""
The plural version of ``set_sysfile_value``. Takes a single parameter which is a mapping of
file paths to values to be set. By default, every value written will be verified. The can
be disabled for individual paths by appending ``'!'`` to them.
"""
for sysfile, value in params.iteritems():
verify = not sysfile.endswith('!')
sysfile = sysfile.rstrip('!')
self.set_sysfile_value(sysfile, value, verify=verify)
def deploy_busybox(self, context, force=False):
"""
Deploys the busybox binary to the specified device and returns
the path to the binary on the device.
:param context: an instance of ExecutionContext
:param force: by default, if the binary is already present on the
device, it will not be deployed again. Setting force
to ``True`` overrides that behavior and ensures that the
binary is always copied. Defaults to ``False``.
:returns: The on-device path to the busybox binary.
"""
on_device_executable = self.get_binary_path("busybox", search_system_binaries=False)
if force or not on_device_executable:
host_file = context.resolver.get(Executable(NO_ONE, self.abi, 'busybox'))
return self.install(host_file)
return on_device_executable
def is_installed(self, name): # pylint: disable=unused-argument,no-self-use
raise AttributeError("""Instead of using is_installed, please use
``get_binary_path`` or ``install_if_needed`` instead. You should
use the path returned by these functions to then invoke the binary
please see: https://pythonhosted.org/wlauto/writing_extensions.html""")
def get_binary_path(self, name, search_system_binaries=True):
"""
Searches the devices ``binary_directory`` for the given binary,
if it cant find it there it tries using which to find it.
:param name: The name of the binary
:param search_system_binaries: By default this function will try using
which to find the binary if it isn't in
``binary_directory``. When this is set
to ``False`` it will not try this.
:returns: The on-device path to the binary.
"""
wa_binary = self.path.join(self.binaries_directory, name)
if self.file_exists(wa_binary):
return wa_binary
if search_system_binaries:
try:
return self.execute('{} which {}'.format(self.busybox, name)).strip()
except DeviceError:
pass
return None
def install_if_needed(self, host_path, search_system_binaries=True):
"""
Similar to get_binary_path but will install the binary if not found.
:param host_path: The path to the binary on the host
:param search_system_binaries: By default this function will try using
which to find the binary if it isn't in
``binary_directory``. When this is set
to ``False`` it will not try this.
:returns: The on-device path to the binary.
"""
binary_path = self.get_binary_path(os.path.split(host_path)[1],
search_system_binaries=search_system_binaries)
if not binary_path:
binary_path = self.install(host_path)
return binary_path
def list_file_systems(self):
output = self.execute('mount')
fstab = []
for line in output.split('\n'):
line = line.strip()
if not line:
continue
match = FSTAB_ENTRY_REGEX.search(line)
if match:
fstab.append(FstabEntry(match.group(1), match.group(2),
match.group(3), match.group(4),
None, None))
else: # assume pre-M Android
fstab.append(FstabEntry(*line.split()))
return fstab
# Process query and control
def get_pids_of(self, process_name):
raise NotImplementedError()
def ps(self, **kwargs):
raise NotImplementedError()
def kill(self, pid, signal=None, as_root=False): # pylint: disable=W0221
"""
Kill the specified process.
:param pid: PID of the process to kill.
:param signal: Specify which singal to send to the process. This must
be a valid value for -s option of kill. Defaults to ``None``.
Modified in version 2.1.4: added ``signal`` parameter.
"""
signal_string = '-s {}'.format(signal) if signal else ''
self.execute('kill {} {}'.format(signal_string, pid), as_root=as_root)
def killall(self, process_name, signal=None, as_root=False): # pylint: disable=W0221
"""
Kill all processes with the specified name.
:param process_name: The name of the process(es) to kill.
:param signal: Specify which singal to send to the process. This must
be a valid value for -s option of kill. Defaults to ``None``.
Modified in version 2.1.5: added ``as_root`` parameter.
"""
for pid in self.get_pids_of(process_name):
self.kill(pid, signal=signal, as_root=as_root)
def get_online_cpus(self, c):
if isinstance(c, int): # assume c == cluster
return [i for i in self.online_cpus if self.core_clusters[i] == c]
elif isinstance(c, basestring): # assume c == core
return [i for i in self.online_cpus if self.core_names[i] == c]
else:
raise ValueError(c)
def get_number_of_online_cpus(self, c):
return len(self.get_online_cpus(c))
def set_number_of_online_cpus(self, core, number):
core_ids = [i for i, c in enumerate(self.core_names) if c == core]
max_cores = len(core_ids)
if number > max_cores:
message = 'Attempting to set the number of active {} to {}; maximum is {}'
raise ValueError(message.format(core, number, max_cores))
for i in xrange(0, number):
self.enable_cpu(core_ids[i])
for i in xrange(number, max_cores):
self.disable_cpu(core_ids[i])
# hotplug
def enable_cpu(self, cpu):
"""
Enable the specified core.
:param cpu: CPU core to enable. This must be the full name as it
appears in sysfs, e.g. "cpu0".
"""
self.hotplug_cpu(cpu, online=True)
def disable_cpu(self, cpu):
"""
Disable the specified core.
:param cpu: CPU core to disable. This must be the full name as it
appears in sysfs, e.g. "cpu0".
"""
self.hotplug_cpu(cpu, online=False)
def hotplug_cpu(self, cpu, online):
"""
Hotplug the specified CPU either on or off.
See https://www.kernel.org/doc/Documentation/cpu-hotplug.txt
:param cpu: The CPU for which the governor is to be set. This must be
the full name as it appears in sysfs, e.g. "cpu0".
:param online: CPU will be enabled if this value bool()'s to True, and
will be disabled otherwise.
"""
if isinstance(cpu, int):
cpu = 'cpu{}'.format(cpu)
status = 1 if online else 0
sysfile = '/sys/devices/system/cpu/{}/online'.format(cpu)
self.set_sysfile_value(sysfile, status)
def get_number_of_active_cores(self, core):
if core not in self.core_names:
raise ValueError('Unexpected core: {}; must be in {}'.format(core, list(set(self.core_names))))
active_cpus = self.active_cpus
num_active_cores = 0
for i, c in enumerate(self.core_names):
if c == core and i in active_cpus:
num_active_cores += 1
return num_active_cores
def set_number_of_active_cores(self, core, number): # NOQA
if core not in self.core_names:
raise ValueError('Unexpected core: {}; must be in {}'.format(core, list(set(self.core_names))))
core_ids = [i for i, c in enumerate(self.core_names) if c == core]
max_cores = len(core_ids)
if number > max_cores:
message = 'Attempting to set the number of active {} to {}; maximum is {}'
raise ValueError(message.format(core, number, max_cores))
if not number:
# make sure at least one other core is enabled to avoid trying to
# hotplug everything.
for i, c in enumerate(self.core_names):
if c != core:
self.enable_cpu(i)
break
else: # did not find one
raise ValueError('Cannot hotplug all cpus on the device!')
for i in xrange(0, number):
self.enable_cpu(core_ids[i])
for i in xrange(number, max_cores):
self.disable_cpu(core_ids[i])
def invoke(self, binary, args=None, in_directory=None, on_cpus=None,
background=False, as_root=False, timeout=30):
"""
Executes the specified binary under the specified conditions.
:binary: binary to execute. Must be present and executable on the device.
:args: arguments to be passed to the binary. The can be either a list or
a string.
:in_directory: execute the binary in the specified directory. This must
be an absolute path.
:on_cpus: taskset the binary to these CPUs. This may be a single ``int`` (in which
case, it will be interpreted as the mask), a list of ``ints``, in which
case this will be interpreted as the list of cpus, or string, which
will be interpreted as a comma-separated list of cpu ranges, e.g.
``"0,4-7"``.
:background: If ``True``, a ``subprocess.Popen`` object will be returned straight
away. If ``False`` (the default), this will wait for the command to
terminate and return the STDOUT output
:as_root: Specify whether the command should be run as root
:timeout: If the invocation does not terminate within this number of seconds,
a ``TimeoutError`` exception will be raised. Set to ``None`` if the
invocation should not timeout.
"""
command = binary
if args:
if isiterable(args):
args = ' '.join(args)
command = '{} {}'.format(command, args)
if on_cpus:
if isinstance(on_cpus, basestring):
on_cpus = ranges_to_list(on_cpus)
if isiterable(on_cpus):
on_cpus = list_to_mask(on_cpus) # pylint: disable=redefined-variable-type
command = '{} taskset 0x{:x} {}'.format(self.busybox, on_cpus, command)
if in_directory:
command = 'cd {} && {}'.format(in_directory, command)
return self.execute(command, background=background, as_root=as_root, timeout=timeout)
def get_device_model(self):
if self.file_exists("/proc/device-tree/model"):
raw_model = self.execute("cat /proc/device-tree/model")
return '_'.join(raw_model.split()[:2])
# Right now we don't know any other way to get device model
# info in linux on arm platforms
return None
# internal methods
def _check_ready(self):
if not self._is_ready:
raise AttributeError('Device not ready.')
def _get_core_cluster(self, core):
"""Returns the first cluster that has cores of the specified type. Raises
value error if no cluster for the specified type has been found"""
core_indexes = [i for i, c in enumerate(self.core_names) if c == core]
core_clusters = set(self.core_clusters[i] for i in core_indexes)
if not core_clusters:
raise ValueError('No cluster found for core {}'.format(core))
return sorted(list(core_clusters))[0]
class LinuxDevice(BaseLinuxDevice):
platform = 'linux'
default_timeout = 30
delay = 2
long_delay = 3 * delay
ready_timeout = 60
parameters = [
Parameter('host', mandatory=True, description='Host name or IP address for the device.'),
Parameter('username', mandatory=True, description='User name for the account on the device.'),
Parameter('password', description='Password for the account on the device (for password-based auth).'),
Parameter('keyfile', description='Keyfile to be used for key-based authentication.'),
Parameter('port', kind=int, default=22, description='SSH port number on the device.'),
Parameter('password_prompt', default='[sudo] password',
description='Prompt presented by sudo when requesting the password.'),
Parameter('use_telnet', kind=boolean, default=False,
description='Optionally, telnet may be used instead of ssh, though this is discouraged.'),
Parameter('boot_timeout', kind=int, default=120,
description='How long to try to connect to the device after a reboot.'),
Parameter('working_directory', default=None,
description='''
Working directory to be used by WA. This must be in a location where the specified user
has write permissions. This will default to /home/<username>/wa (or to /root/wa, if
username is 'root').
'''),
]
@property
def is_rooted(self):
if self._is_rooted is None:
# First check if the user is root
try:
self.execute('test $(id -u) = 0')
self._is_root_user = True
self._is_rooted = True
return self._is_rooted
except DeviceError:
self._is_root_user = False
# Otherwise, check if the user has sudo rights
try:
self.execute('ls /', as_root=True)
self._is_rooted = True
except DeviceError:
self._is_rooted = False
return self._is_rooted
def __init__(self, *args, **kwargs):
super(LinuxDevice, self).__init__(*args, **kwargs)
self.shell = None
self._is_rooted = None
def validate(self):
if self.working_directory is None: # pylint: disable=access-member-before-definition
if self.username == 'root':
self.working_directory = '/root/wa' # pylint: disable=attribute-defined-outside-init
else:
self.working_directory = '/home/{}/wa'.format(self.username) # pylint: disable=attribute-defined-outside-init
def initialize(self, context, *args, **kwargs):
self.execute('mkdir -p {}'.format(self.binaries_directory))
self.execute('export PATH={}:$PATH'.format(self.binaries_directory))
super(LinuxDevice, self).initialize(context, *args, **kwargs)
# Power control
def reset(self):
self.execute('reboot', as_root=True)
self._is_ready = False
def hard_reset(self):
self._is_ready = False
def boot(self, hard=False, **kwargs):
if hard:
self.hard_reset()
else:
self.reset()
self.logger.debug('Waiting for device...')
start_time = time.time()
while (time.time() - start_time) < self.boot_timeout:
try:
s = socket.create_connection((self.host, self.port), timeout=5)
s.close()
break
except socket.timeout:
pass
except socket.error:
time.sleep(5)
else:
raise DeviceError('Could not connect to {} after reboot'.format(self.host))
def connect(self): # NOQA pylint: disable=R0912
self.shell = SshShell(password_prompt=self.password_prompt,
timeout=self.default_timeout, telnet=self.use_telnet)
self.shell.login(self.host, self.username, self.password, self.keyfile, self.port)
self._is_ready = True
def disconnect(self): # NOQA pylint: disable=R0912
self.shell.logout()
self._is_ready = False
# Execution
def has_root(self):
try:
self.execute('ls /', as_root=True)
return True
except DeviceError as e:
if 'not in the sudoers file' not in e.message:
raise e
return False
def execute(self, command, timeout=default_timeout, check_exit_code=True, background=False,
as_root=False, strip_colors=True, **kwargs):
"""
Execute the specified command on the device using adb.
Parameters:
:param command: The command to be executed. It should appear exactly
as if you were typing it into a shell.
:param timeout: Time, in seconds, to wait for adb to return before aborting
and raising an error. Defaults to ``AndroidDevice.default_timeout``.
:param check_exit_code: If ``True``, the return code of the command on the Device will
be check and exception will be raised if it is not 0.
Defaults to ``True``.
:param background: If ``True``, will execute create a new ssh shell rather than using
the default session and will return it immediately. If this is ``True``,
``timeout``, ``strip_colors`` and (obvisously) ``check_exit_code`` will
be ignored; also, with this, ``as_root=True`` is only valid if ``username``
for the device was set to ``root``.
:param as_root: If ``True``, will attempt to execute command in privileged mode. The device
must be rooted, otherwise an error will be raised. Defaults to ``False``.
Added in version 2.1.3
:returns: If ``background`` parameter is set to ``True``, the subprocess object will
be returned; otherwise, the contents of STDOUT from the device will be returned.
"""
self._check_ready()
try:
if background:
if as_root and self.username != 'root':
raise DeviceError('Cannot execute in background with as_root=True unless user is root.')
return self.shell.background(command)
else:
# If we're already the root user, don't bother with sudo
if self._is_root_user:
as_root = False
return self.shell.execute(command, timeout, check_exit_code, as_root, strip_colors)
except CalledProcessError as e:
raise DeviceError(e)
def kick_off(self, command, as_root=False):
"""
Like execute but closes adb session and returns immediately, leaving the command running on the
device (this is different from execute(background=True) which keeps adb connection open and returns
a subprocess object).
"""
self._check_ready()
command = 'sh -c "{}" 1>/dev/null 2>/dev/null &'.format(escape_double_quotes(command))
return self.shell.execute(command, as_root=as_root)
def get_pids_of(self, process_name):
"""Returns a list of PIDs of all processes with the specified name."""
# result should be a column of PIDs with the first row as "PID" header
result = self.execute('ps -C {} -o pid'.format(process_name), # NOQA
check_exit_code=False).strip().split()
if len(result) >= 2: # at least one row besides the header
return map(int, result[1:])
else:
return []
def ps(self, **kwargs):
command = 'ps -eo user,pid,ppid,vsize,rss,wchan,pcpu,state,fname'
lines = iter(convert_new_lines(self.execute(command)).split('\n'))
lines.next() # header
result = []
for line in lines:
parts = re.split(r'\s+', line, maxsplit=8)
if parts:
result.append(PsEntry(*(parts[0:1] + map(int, parts[1:5]) + parts[5:])))
if not kwargs:
return result
else:
filtered_result = []
for entry in result:
if all(getattr(entry, k) == v for k, v in kwargs.iteritems()):
filtered_result.append(entry)
return filtered_result
# File management
def push_file(self, source, dest, as_root=False, timeout=default_timeout): # pylint: disable=W0221
self._check_ready()
try:
if not as_root or self.username == 'root':
self.shell.push_file(source, dest, timeout=timeout)
else:
tempfile = self.path.join(self.working_directory, self.path.basename(dest))
self.shell.push_file(source, tempfile, timeout=timeout)
self.shell.execute('cp -r {} {}'.format(tempfile, dest), timeout=timeout, as_root=True)
except CalledProcessError as e:
raise DeviceError(e)
def pull_file(self, source, dest, as_root=False, timeout=default_timeout): # pylint: disable=W0221
self._check_ready()
try:
if not as_root or self.username == 'root':
self.shell.pull_file(source, dest, timeout=timeout)
else:
tempfile = self.path.join(self.working_directory, self.path.basename(source))
self.shell.execute('cp -r {} {}'.format(source, tempfile), timeout=timeout, as_root=True)
self.shell.execute('chown -R {} {}'.format(self.username, tempfile), timeout=timeout, as_root=True)
self.shell.pull_file(tempfile, dest, timeout=timeout)
except CalledProcessError as e:
raise DeviceError(e)
def delete_file(self, filepath, as_root=False): # pylint: disable=W0221
self.execute('rm -rf {}'.format(filepath), as_root=as_root)
def file_exists(self, filepath):
output = self.execute('if [ -e \'{}\' ]; then echo 1; else echo 0; fi'.format(filepath))
# output from ssh my contain part of the expression in the buffer,
# split out everything except the last word.
return boolean(output.split()[-1]) # pylint: disable=maybe-no-member
def listdir(self, path, as_root=False, **kwargs):
contents = self.execute('ls -1 {}'.format(path), as_root=as_root).strip()
if not contents:
return []
return [x.strip() for x in contents.split('\n')] # pylint: disable=maybe-no-member
def install(self, filepath, timeout=default_timeout, with_name=None): # pylint: disable=W0221
destpath = self.path.join(self.binaries_directory,
with_name or self.path.basename(filepath))
self.push_file(filepath, destpath, as_root=True)
self.execute('chmod a+x {}'.format(destpath), timeout=timeout, as_root=True)
return destpath
install_executable = install # compatibility
def uninstall(self, executable_name):
on_device_executable = self.get_binary_path(executable_name, search_system_binaries=False)
if not on_device_executable:
raise DeviceError("Could not uninstall {}, binary not found".format(on_device_executable))
self.delete_file(on_device_executable, as_root=self.is_rooted)
uninstall_executable = uninstall # compatibility
# misc
def lsmod(self):
"""List loaded kernel modules."""
lines = self.execute('lsmod').splitlines()
entries = []
for line in lines[1:]: # first line is the header
if not line.strip():
continue
parts = line.split()
name = parts[0]
size = int(parts[1])
use_count = int(parts[2])
if len(parts) > 3:
used_by = ''.join(parts[3:]).split(',')
else:
used_by = []
entries.append(LsmodEntry(name, size, use_count, used_by))
return entries
def insmod(self, path):
"""Install a kernel module located on the host on the target device."""
target_path = self.path.join(self.working_directory, os.path.basename(path))
self.push_file(path, target_path)
self.execute('insmod {}'.format(target_path), as_root=True)
def ping(self):
try:
# May be triggered inside initialize()
self.shell.execute('ls /', timeout=5)
except (TimeoutError, CalledProcessError):
raise DeviceNotRespondingError(self.host)
def capture_screen(self, filepath):
if not self.get_binary_path('scrot'):
self.logger.debug('Could not take screenshot as scrot is not installed.')
return
try:
tempfile = self.path.join(self.working_directory, os.path.basename(filepath))
self.execute('DISPLAY=:0.0 scrot {}'.format(tempfile))
self.pull_file(tempfile, filepath)
self.delete_file(tempfile)
except DeviceError as e:
if "Can't open X dispay." not in e.message:
raise e
message = e.message.split('OUTPUT:', 1)[1].strip()
self.logger.debug('Could not take screenshot: {}'.format(message))
def is_screen_on(self):
pass # TODO
def ensure_screen_is_on(self):
pass # TODO