1 # 2 # Copyright (C) 2017 The Android Open Source Project 3 # 4 # Licensed under the Apache License, Version 2.0 (the "License"); 5 # you may not use this file except in compliance with the License. 6 # You may obtain a copy of the License at 7 # 8 # http://www.apache.org/licenses/LICENSE-2.0 9 # 10 # Unless required by applicable law or agreed to in writing, software 11 # distributed under the License is distributed on an "AS IS" BASIS, 12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 # See the License for the specific language governing permissions and 14 # limitations under the License. 15 # 16 17 import subprocess 18 19 class AdbHandler(object): 20 """Adb wrapper to execute shell and adb command to the device.""" 21 22 def __init__(self, serial=None): 23 self.serial = serial 24 self.adb_cmd = 'adb -s {}'.format(serial) 25 26 def exec_adb_command(self, cmd): 27 """Method to execute an adb command against the device.""" 28 cmd = "{} {}".format(self.adb_cmd, cmd) 29 proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True) 30 (out, err) = proc.communicate() 31 ret = proc.returncode 32 if ret == 0: 33 return out 34 raise AdbError(cmd=cmd, stdout=out, stderr=err, ret_code=ret) 35 36 def exec_shell_command(self, cmd): 37 """Method to execute a shell command against the device.""" 38 cmd = '{} shell {}'.format(self.adb_cmd, cmd) 39 proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True) 40 (out, err) = proc.communicate() 41 ret = proc.returncode 42 if ret == 0: 43 return out 44 raise AdbError(cmd=cmd, stdout=out, stderr=err, ret_code=ret) 45 46 class AdbError(Exception): 47 """Raised when there is an error in adb operations.""" 48 49 def __init__(self, cmd, stdout, stderr, ret_code): 50 self.cmd = cmd 51 self.stdout = stdout 52 self.stderr = stderr 53 self.ret_code = ret_code 54 55 def __str__(self): 56 return ('Error executing adb cmd "%s". ret: %d, stdout: %s, stderr: %s' 57 ) % (self.cmd, self.ret_code, self.stdout, self.stderr) 58
