openGauss-OM/script/base_utils/os/compress_util.py
coolany eae422baf3 适配CM组件
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support cgroup

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2022-03-05 18:51:52 +08:00

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Python

# -*- coding:utf-8 -*-
#############################################################################
# Copyright (c) 2020 Huawei Technologies Co.,Ltd.
#
# openGauss is licensed under Mulan PSL v2.
# You can use this software according to the terms
# and conditions of the Mulan PSL v2.
# You may obtain a copy of Mulan PSL v2 at:
#
# http://license.coscl.org.cn/MulanPSL2
#
# 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 v2 for more details.
# ----------------------------------------------------------------------------
# Description : compress_util.py is utility to support compress and decompress.
#############################################################################
import os
import subprocess
from gspylib.common.ErrorCode import ErrorCode
from base_utils.os.cmd_util import CmdUtil
class CompressUtil:
"""compress util"""
@staticmethod
def getCompressFilesCmd(tar_name, file_src):
"""
function: get compress file cmd
input : tar_name, file_src
output : str
"""
return "%s -zvcf '%s' %s" % (CmdUtil.getTarCmd(), tar_name, file_src)
@staticmethod
def getDecompressFilesCmd(src_package, dest):
"""
function: get decompress file cmd
input : src_package, dest
output : str
"""
return "%s -zxvf '%s' -C '%s'" % (CmdUtil.getTarCmd(), src_package, dest)
@staticmethod
def getCompressZipFilesCmd(zip_name, file_src):
"""
function: get compress zip files cmd
input : zip_name, file_src
output : str
"""
return "cd %s && %s -r '%s.zip' ./*" % (file_src, CmdUtil.getZipCmd(),
zip_name)
@staticmethod
def getDecompressZipFilesCmd(src_package, dest):
"""
function: get decompress zip files cmd
input : src_package, dest
output : str
"""
return "%s -o '%s' -d '%s'" % (CmdUtil.getUnzipCmd(), src_package, dest)
@staticmethod
def decompressFiles(src_package, dest):
"""
function:decompress package to files
input:src_package, dest
output:NA
"""
if not os.path.exists(src_package):
raise Exception(ErrorCode.GAUSS_502["GAUSS_50201"] % src_package)
if not os.path.exists(dest):
raise Exception(ErrorCode.GAUSS_502["GAUSS_50201"] % dest)
cmd = CompressUtil.getDecompressFilesCmd(src_package, dest)
(status, output) = subprocess.getstatusoutput(cmd)
if status != 0:
raise Exception(ErrorCode.GAUSS_502["GAUSS_50231"] % src_package +
" Error:\n%s" % output + "\nThe cmd is %s" % cmd)
@staticmethod
def compressZipFiles(zip_name, dir_path):
"""
function:compress directory to a package
input:zip_name, directory
output:NA
"""
if not os.path.exists(dir_path):
raise Exception(ErrorCode.GAUSS_502["GAUSS_50201"] % dir_path)
cmd = CompressUtil.getCompressZipFilesCmd(zip_name, dir_path)
(status, output) = subprocess.getstatusoutput(cmd)
if status != 0:
raise Exception(ErrorCode.GAUSS_502["GAUSS_50227"] % cmd +
" Error:\n%s" % output)
@staticmethod
def decompressZipFiles(src_package, dest):
"""
function:decompress package to files
input:src_package, dest
output:NA
"""
if not os.path.exists(src_package):
raise Exception(ErrorCode.GAUSS_502["GAUSS_50201"] % src_package)
if not os.path.exists(dest):
raise Exception(ErrorCode.GAUSS_502["GAUSS_50201"] % dest)
cmd = CompressUtil.getDecompressZipFilesCmd(src_package, dest)
(status, output) = subprocess.getstatusoutput(cmd)
if status != 0:
raise Exception(ErrorCode.GAUSS_502["GAUSS_50231"] % src_package +
" Error:\n%s" % output + "\nThe cmd is %s" % cmd)