1#!/usr/bin/env python 2#coding=utf-8 3 4# 5# Copyright (c) 2022 Huawei Device Co., Ltd. 6# Licensed under the Apache License, Version 2.0 (the "License"); 7# you may not use this file except in compliance with the License. 8# You may obtain a copy of the License at 9# 10# http://www.apache.org/licenses/LICENSE-2.0 11# 12# Unless required by applicable law or agreed to in writing, software 13# distributed under the License is distributed on an "AS IS" BASIS, 14# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15# See the License for the specific language governing permissions and 16# limitations under the License. 17# 18 19import os 20import sys 21import string 22 23DEBUG_NORMAL = 1 24DEBUG_VERBOSE = 2 25DEBUG_SPAM = 3 26 27debuglevel = DEBUG_NORMAL 28 29def debug(level, *msg): 30 if debuglevel >= level: 31 print(' '.join(msg)) 32 33# return a list of lines of output of the command 34def command(command, *args): 35 debug(DEBUG_SPAM, "calling", command, ' '.join(args)) 36 pipe = os.popen(command + ' ' + ' '.join(args), 'r') 37 output = pipe.read().strip() 38 status = pipe.close() 39 if status is not None and os.WEXITSTATUS(status) != 0: 40 print("Command failed with status", os.WEXITSTATUS(status), ":", \ 41 command, ' '.join(args)) 42 print("With output:", output) 43 sys.exit(1) 44 return [i for i in output.split('\n') if i] 45