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#!/usr/bin/env python3
#
# Copyright 2019, 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.
"""Helper util libraries for calling adb command line."""
import os
import sys
import time
sys.path.append(os.path.dirname(os.path.dirname(os.path.dirname(
os.path.abspath(__file__)))))
import lib.cmd_utils as cmd_utils
def logcat_save_timestamp() -> str:
"""Gets the current logcat timestamp.
Returns:
A string of timestamp.
"""
_, output = cmd_utils.run_adb_shell_command(
"date -u +\'%Y-%m-%d %H:%M:%S.%N\'")
return output
def vm_drop_cache():
"""Free pagecache and slab object."""
cmd_utils.run_adb_shell_command('echo 3 > /proc/sys/vm/drop_caches')
def root():
"""Roots adb and successive adb commands will run under root."""
cmd_utils.run_shell_command('adb root')
def disable_selinux():
"""Disables selinux setting."""
_, output = cmd_utils.run_adb_shell_command('getenforce')
if output == 'Permissive':
return
print('Disable selinux permissions and restart framework.')
cmd_utils.run_adb_shell_command('setenforce 0')
cmd_utils.run_adb_shell_command('stop')
cmd_utils.run_adb_shell_command('start')
cmd_utils.run_shell_command('adb wait-for-device')
def pkill(procname: str):
"""Kills a process on device specified by the substring pattern in procname"""
_, pids = cmd_utils.run_shell_command('adb shell ps | grep "{}" | '
'awk \'{{print $2;}}\''.
format(procname))
for pid in pids.split('\n'):
pid = pid.strip()
if pid:
passed,_ = cmd_utils.run_adb_shell_command('kill {}'.format(pid))
time.sleep(1)
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