44 lines
1.3 KiB
Python
44 lines
1.3 KiB
Python
#!/usr/bin/python3
|
|
# -*- coding: utf-8 -*-
|
|
# Copyright (c) 2019 Huawei Technologies Co., Ltd.
|
|
# A-Tune is licensed under the Mulan PSL v1.
|
|
# You can use this software according to the terms and conditions of the Mulan PSL v1.
|
|
# You may obtain a copy of Mulan PSL v1 at:
|
|
# http://license.coscl.org.cn/MulanPSL
|
|
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
|
|
# PURPOSE.
|
|
# See the Mulan PSL v1 for more details.
|
|
# Create: 2019-10-29
|
|
|
|
"""
|
|
Utils class.
|
|
"""
|
|
|
|
|
|
class Utils:
|
|
"""Utils class"""
|
|
|
|
@staticmethod
|
|
def get_keypos(str, key):
|
|
keys = [" " + key + "=", " " + key + " ", " " + key + "\n"]
|
|
ret = []
|
|
for k in keys:
|
|
pos = str.rfind(k)
|
|
if pos != -1:
|
|
pos += 1
|
|
ret.append(pos)
|
|
return max(ret)
|
|
|
|
@staticmethod
|
|
def get_value(key):
|
|
with open("/proc/cmdline", 'r') as f:
|
|
active_cmd = f.read()
|
|
keypos = Utils.get_keypos(active_cmd, key)
|
|
active = None
|
|
if keypos != -1:
|
|
config = active_cmd[keypos:].split()[0]
|
|
if config.find("=") != -1:
|
|
active = config.split("=")[1]
|
|
return active
|