#!/usr/bin/python

from __future__ import generators
import os
import sys
from glob import glob as ls

total = 0
queue = {}
aicm = ['active','incoming','maildrop','deferred']

def dirwalk(dir):
    "walk a directory tree, using a generator"
    for f in os.listdir(dir):
        fullpath = os.path.join(dir,f)
        if os.path.isdir(fullpath) and not os.path.islink(fullpath):
            for x in dirwalk(fullpath):  # recurse into subdir
                yield x
        else:
            yield fullpath


if __name__ == '__main__':
    print "<<<queue_postfix>>>"
    for postfix in ls('/var/spool/postfix*'):
        name = str(postfix.split('/')[-1:])
        mails = 0
        for directory in aicm:
            mails = mails + len([ msgid for msgid in dirwalk("%s/%s" % (postfix, directory))])
        queue[name] = mails
        total = queue[name] + total
        print postfix.split('/')[-1], queue[name]