#!/usr/bin/python
# mudler <mudler@sabayon.org>
# Edit: truncate a tbz2 with just data
import os
import sys
from portage import xpak

def usage():
        sys.stderr.write("usage: %s <tbz2_file>\n" % os.path.basename(sys.argv[0]))

def main():
        if len(sys.argv) != 2:
                usage()
                return 1

        input_file = sys.argv[1]

        if not os.path.isfile(input_file):
                usage()
                return 1

        t = xpak.tbz2(input_file)
        t.scan()
        f = open(input_file, 'r+')
        f.seek(-t.xpaksize, os.SEEK_END)
        f.truncate()
        f.close()

        return 0

if __name__ == '__main__':
        sys.exit(main())