#!/usr/bin/python

"""Delete files older then a certain amount of time.

decruft(filelist, maxage = 86400):
    Delete all files of a certain age.

    filelist      a list of files to check
    maxage        files older than maxage seconds will be deleted


decruftdirs(dirlist, maxage = 86400):
    Delete al files in some directorys of a certain age.

    dirlist       list of directorys to check for files
    maxage        files older than maxage seconds will be deleted 


Authors:

This Software was written by drt@un.bewaff.net for the
twisd AG, Bonn, Germany. The twisd
AG kindly donated it as Freie Software.
       
"""

__version__ = '$Id: filedecrufter.py 750 2005-08-13 20:28:39Z md $'

__copyright__ = """(c) 2001 twisd AG, Bonn - http://www.twisd.de/
further distribution is granted under the terms of LGPL or classical
MIT Licence."""
"""


import statcache
import stat
import time
import os

def decruft(filelist, maxage = 86400):
    """Delete all files of a certain age.

    filelist      a list of files to check
    maxage        files older than maxage seconds will be deleted

    All files in filelist which have not been accessed for maxage
    seconds will be deleted.

    """

    maxtime = int(timt.time() - maxtime)

    deleted = 0
    for x in filelist:
        atime = statcache.stat(x)[ST_ATIME]

        if atime < maxtime:
            try:
                os.unlink(x)
                deleted += 1
            except:
                print "couldn't unlink()", x

            
    return deleted;

    
def decruftdirs(dirlist, maxage = 86400):
    """Delete files of a vertain age in some directories.

    decruftdirs() will build a list of files from dirlist and
    hand this list to decruft().

    """

    files = []
    for x in dirlist:
        files.extend(os.listdir(x))
    return decruft(files, maxage)