cvs 备份

#!/bin/env Python
import os,time,ftplib,string
import glob,sys
import os.path

home='/root/backcvs'                    #本地保存文件目录
ftphost='192.168.220.10'                  #ftp备份服务器
ftpuser='qa'   #ftp登陆用户名
ftppass='qa'   #ftp登陆密码
ftppassmode=1    #ftp模式 port 0 passive 1
ftpdir='backcvs'   #ftp上存放备份的目录

cvsdir='/cvshome'   #cvs代码存放目录
data=time.strftime('%y-%m-%d')
cvstarfile="cvsroot"+data+".tgz"
global fd

if not os.path.isdir(home):
    os.mkdir(home)
os.chdir(home)
lastfilelen = os.path.getsize(glob.glob("*.tgz")[-1])
cmd = "tar zcvf "+cvstarfile+" "+cvsdir
if (os.system(cmd))!=0:
    print "tar file faild! cmd:[%s]"%(cmd)
    sys.exit(1)

newfilelen = os.path.getsize(cvstarfile)
print "new:%d,old:%d"%(newfilelen,lastfilelen)
if (newfilelen == lastfilelen):
    print "file size not change! exit!"
    sys.exit(0)

print "while upload file:%s,size:%d"%(cvstarfile,newfilelen)
if os.getcwd()==home:
    ftp=ftplib.FTP(ftphost,ftpuser,ftppass)
   ftp.set_pasv(ftppassmode)
   ftp.cwd(ftpdir)
    paths=ftp.nlst('cvsroot*')
    print paths
    if len(paths) > 5:
       ftp.delete(paths[0])
        os.remove(paths[0])
    fd = open(cvstarfile, 'rb')
   ftp.storbinary('STOR%s' % os.path.basename(cvstarfile), fd)
    fd.close()
   ftp.quit()