[0775]can we ctrl svn security mask?

in fact i want usage SVN as PyBlosxom's content synchroscope.
don't through ftp, commit custom and blog with svn auto co.
now i design the post-commit.py usage autoco(dirs,svn,mark,aim,mod) done
::
#!/usr/local/bin/python
#coding=utf-8
import sys,os,time

LOOK = "/usr/local/bin/svnlook"
SVN = "/usr/local/bin/svn"
LOGFILE = "/usr/local/svnrepos/pyblosxom/hooks/script/post-commit.log"
f = open( LOGFILE, "a+" )
TSTAMP = "%s"%time.strftime("%y-%m-%d %H:%M:%S", time.localtime())
### hook matter
MARK = "zoomquiet.org"
MOD = "zoomquiet.org"
AIM = "/usr/local/www/data/pyblosxom/"

def autoco(dirs,svn,mark,aim,mod):
    """自动检出指定项目的代码到指定目录
        - dirs 本次修改的目录
        - svn svn 命令所在地
        - mark 匹配项
        - aim 输出目标
        - mod 检出的模块
       要求目标路径有预先检出的环境！
    """
    #print >> f,len(dirs)
    print >> f,dirs
    if mark in dirs:
        print >> f,TSTAMP+" mark::OK! up::"+aim+mod
        upsvn = svn+" update %s"%(aim+mod)
        print >> f,TSTAMP+upsvn
        up = os.popen(upsvn).read().strip()
        print >> f,up
    else:
        print >> f,TSTAMP+" mark::NO! up::nothing"

def changedirs(look,rev,repos):
    """使用 svnlook 得到修改的路径
    """
    dirs = os.popen( LOOK+" changed -r "+ rev + " " + repos).read().strip()
    return dirs

def usage():
    print "Usage: " + sys.argv[0] + " REPOS REV\n"
    sys.exit(0)

if __name__ == '__main__':
    if len(sys.argv) != 3:
        usage()
    # start hook matter...
    repos = sys.argv[1]
    rev = sys.argv[2]
    print >> f,TSTAMP+" repos::"+repos+" rev::"+rev
    #print >> f,TSTAMP+str()
    autoco(changedirs(LOOK,rev,repos),SVN,MARK,AIM,MOD)

it working good, BUT! i commit in windows through TortoriseSVN, when autoco,
that aim dir file is all
-rw-r--r-- 1 root wheel
?!??! how can i make svn update out file is all 755 www:www ?

thanx for any suggest.

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## 面朝开源，我心自由！