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#!/usr/bin/env python
#
# Copyright (C) 2020 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.
#
# TODO(b/147454897): Keep the logic in sync with
# test/vts/utils/python/controllers/android_device.py until
# it is removed.
import logging
import subprocess
class AndroidDevice(object):
"""This class controls the device via adb commands."""
def _ExecuteCommand(self, *cmd):
"""Executes a command.
Args:
args: Strings, the arguments.
Returns:
Stdout as a string, stderr as a string, and return code as an
integer.
"""
proc = subprocess.Popen(cmd, shell=False, stdin=subprocess.PIPE,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = proc.communicate()
# Compatible with python2 and python3
if not isinstance(out, str):
out = out.decode("utf-8")
if not isinstance(err, str):
err = err.decode("utf-8")
return out, err, proc.returncode
def _GetProp(self, name):
"""Gets an Android system property.
Args:
name: A string, the property name.
Returns:
A string, the value of the property.
Raises:
IOError if the command fails.
"""
out, err, return_code = self._ExecuteCommand("getprop", name)
if err.strip() or return_code != 0:
raise IOError("`getprop %s` stdout: %s\nstderr: %s" %
(name, out, err))
return out.strip()
def GetCpuAbiList(self, bitness=""):
"""Gets the list of supported ABIs from property.
Args:
bitness: 32 or 64. If the argument is not specified, this method
returns both 32 and 64-bit ABIs.
Returns:
A list of strings, the supported ABIs.
"""
out = self._GetProp("ro.product.cpu.abilist" + str(bitness))
return out.lower().split(",") if out else []
def GetLaunchApiLevel(self):
"""Gets the API level that the device was initially launched with.
This method reads ro.product.first_api_level from the device. If the
value is 0, it then reads ro.build.version.sdk.
Returns:
An integer, the API level.
"""
level_str = self._GetProp("ro.product.first_api_level")
level = int(level_str)
if level != 0:
return level
level_str = self._GetProp("ro.build.version.sdk")
return int(level_str)
def getLaunchApiLevel(self, strict=True):
"""Gets the API level that the device was initially launched with.
This method is compatible with vndk_utils in vts package.
Args:
strict: A boolean, whether to raise an error if the property is
not an integer or not defined.
Returns:
An integer, the API level.
0 if the value is undefined and strict is False.
Raises:
ValueError: if the value is undefined and strict is True.
"""
try:
return self.GetLaunchApiLevel()
except ValueError as e:
if strict:
raise
logging.exception(e)
return 0
@property
def vndk_lite(self):
"""Checks whether the vendor partition requests lite VNDK enforcement.
This method is compatible with vndk_utils in vts package.
Returns:
A boolean, True for lite vndk enforcement.
"""
return self._GetProp("ro.vndk.lite").lower() == "true"
def GetVndkVersion(self):
"""Gets the VNDK version that the vendor partition requests."""
return self._GetProp("ro.vndk.version")
def IsRoot(self):
"""Returns whether adb has root privilege on the device."""
out, err, return_code = self._ExecuteCommand("id")
if err.strip() or return_code != 0:
raise IOError("`id` stdout: %s\nstderr: %s \n" % (out, err))
return "uid=0(root)" in out.strip()
def _Test(self, *args):
"""Tests file types and status."""
out, err, return_code = self._ExecuteCommand("sh", "-c",
"test " + " ".join(args))
if out.strip() or err.strip():
raise IOError("`test` args: %s\nstdout: %s\nstderr: %s" %
(args, out, err))
return return_code == 0
def IsDirectory(self, path):
"""Returns whether a path on the device is a directory."""
return self._Test("-d", path)
def _Stat(self, fmt, path):
"""Executes stat command."""
out, err, return_code = self._ExecuteCommand("stat", "--format", fmt,
path)
if return_code != 0 or err.strip():
raise IOError("`stat --format %s %s` stdout: %s\nstderr: %s" %
(fmt, path, out, err))
return out.strip()
def IsExecutable(self, path):
"""Returns if execute permission is granted to a path on the device."""
return "x" in self._Stat("%A", path)
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