areguera / rpms / mailman

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#!/usr/bin/python2

# This script inserts the mailman user name into the crontab entries after
# the 5 time/date fields so that it can be installed under /etc/cron.d
#
# usage: mailman-crontab-edit [-s src_file] [-u mailman_user] [-d dst_file]
# src_file defaults to stdin
# mailman_user defaults to mailman
# dst_file defaults to stdout

import sys, re, getopt

srcFile = None
dstFile = None
mmUser = None

opts, args = getopt.getopt(sys.argv[1:], "s:d:u:")
for o, a in opts:
    if o == "-s":
        srcFile = a
    if o == "-d":
        dstFile = a
    if o == "-u":
        mmUser = a

if srcFile:
    inFD = open(srcFile)
else:
    inFD = sys.stdin

if dstFile:
    outFD = open(dstFile, mode='w')
else:
    outFD = sys.stdout

if not mmUser:
    mmUser = "mailman"

comment_re = re.compile(r'^\s*#')
time_date_re = re.compile(r'(^\s*(\S+\s+){5,5})')

for line in inFD:
    if not comment_re.search(line):
        match = time_date_re.search(line)
        if match:
            line = time_date_re.sub(r'\1 %s ' % mmUser, line)
    print >>outFD, line,