系统配置文件备份比较

客户的系统出各种问题，这次出了问题整整一天都没找出原因，都红脸了，最后发现是系统配置文件被改掉了，简直不能忍，所以写了这个脚本，放到定时任务里面，每天备份比较配置文件

import difflib
import os
import time
import shutil
from AFALogger import LoggerError,LoggerInfor
from traceback import format_exc;
def compareFile(file1,file2):
#比较两个文件的内容是否相同
    try:
        file_handle_1 = open(file1)    
        file_handle_1_read = file_handle_1.readlines()
        file_handle_1.close()
#        LoggerInfor(str(file_handle_1_read))
        
        file_handle_2 = open(file2)
        file_handle_2_read = file_handle_2.readlines()
        file_handle_2.close()
 #       LoggerInfor(str(file_handle_2_read))
        
        diff = ''.join(difflib.ndiff(file_handle_1_read,file_handle_2_read))
        diffInfo=[]
        for line in diff.split('\n'):
            if line !='':
                if line[0] in ('+','-'):
                    diffInfo.append(line)
                else:
                    continue
        return diffInfo
    except:
        LoggerInfor(str(file2+'\nerror')) #将错误的文件写入日志，当文件名乱码的时候会出现错误
        return [file2+'\nerror',]
def compareResultWriteFile(file2,diffInfo,resultFilename):
#将不同的地方写入文件
    file_handle = open(resultFilename,'a')
    file_handle.write(file2+'  Start\n')
    for line in diffInfo:
        file_handle.write(line+'\n')
    file_handle.write(file2+'  END\n\n')
    file_handle.close()
def getAllFilename(directoryOrFilename):
#在输入为目录的时候，获取目录下所有文件
    allFilename=[]
    for name in directoryOrFilename.split(','):
        if os.path.isdir(name):
            for path,dirs,files in os.walk(name):
                for fn in files:
                    allFilename.append(path+'/'+fn)
        elif os.path.isfile(name):
            allFilename.append(name)
        else:
            continue
    return allFilename
def backupFile(resultDir,filename):
#将本日文件备份
    try:
        filepath_list=filename.split('/')
        filepath='_'.join(filepath_list[3:-1])
        shutil.copy(filename,resultDir+'/'+filepath_list[-1]+'_'+filepath)
    except:
        return ''
def cfgCompare(sourceFile,destinationDir):
    '''  
    @使用范例:
    cfgCompare('/home/iqms/lyb,/home/iqms/qm_info','/home/iqms/cfgDir')
    '''
    try:
        if not type(sourceFile) is str:
            return [0, "ERR001", "sourceFile参数必须为str类型", [None]];
        if not type(destinationDir) is str:
            return [0, "ERR001", "destinationDir参数必须为str类型", [None]];
        
        allFilename = getAllFilename(sourceFile)
        yesterdayDestinationDir = destinationDir+'/'+time.strftime('%Y%m%d',time.localtime(time.time()-24*60*60))
        destinationDir = destinationDir+'/'+time.strftime('%Y%m%d')
        os.mkdir(destinationDir)
        for filename in allFilename:
            filepath_list=filename.split('/') #拼文件名
            if filepath_list[-1].startswith('.'):
                continue
            filepath='_'.join(filepath_list[3:-1]) #拼文件名
            backupFile(destinationDir,filename)
            if os.path.exists(yesterdayDestinationDir):
#                diffInfo=compareFile(yesterdayDestinationDir+'/'+filename.split('/')[-1],filename)
#                diffInfo=compareFile(yesterdayDestinationDir+'/'+filename.split('/')[-1],destinationDir+'/'+filename.split('/')[-1])
                diffInfo=compareFile(yesterdayDestinationDir+'/'+filepath_list[-1]+'_'+filepath,destinationDir+'/'+filepath_list[-1]+'_'+filepath)
                compareResultWriteFile(filename.split('/')[-1],diffInfo,destinationDir+'/log')
            else:
                continue
        return [1, None, None, [None]];
    except Exception, e:
        LoggerError(str(format_exc()));
        return [2, 'A015017', '异常:'+str( e ), [None]];