#!/usr/bin/env python
# -*- coding: iso-8859-1 -*-
# (c) 2004 Thomas Güttler
# This is open source software

import os
import sys
import getopt

del_endings=["~"]

def usage():
    print '''Usage: %s [-d STRING] dirs|files ....
Delete backup files recursively.

-d (optional):
 If a file ends with this string, it gets deleted
 You can give several -d options.
 Example: -d .pyc -d .pyo

By default the list of endings is: %s
''' % (os.path.basename(sys.argv[0]), ', '.join(del_endings))


def delete_backup_file(dir):
    if not os.path.isdir(dir):
        return
    for file in os.listdir(dir):
        file=os.path.join(dir, file)
        if os.path.isdir(file):
            delete_backup_file(file)
        else:
            for ending in del_endings:
                if file.endswith(ending):
                    print "Deleting: '%s' " % file
                    try:
                        os.unlink(file)
                    except OSError:
                        print "Fehler beim Löschen von %s" % (
                            file)

def main():
    try:
        opts, args = getopt.getopt(sys.argv[1:], "d:")
    except getopt.GetoptError:
        # print help information and exit:
        usage()
        sys.exit(2)

    for o, a in opts:
        if o=="-d":
            del_endings.append(a)
    if len(args)==0:
        startdirs=["."]
    else:
        startdirs=args

    for file in startdirs:
        delete_backup_file(file)

if __name__=="__main__":
    main()