#! /usr/bin/env python2.7

from __future__ import print_function

from optparse import OptionParser
import os
import subprocess


def main():
    parser = OptionParser(usage="%prog [options] distroseries snapshot-name")
    parser.add_option(
        "-n", "--dry-run", default=False, action="store_true",
        help="only show actions that would be performed")
    options, args = parser.parse_args()
    if len(args) < 2:
        parser.error("need distroseries and snapshot-name")

    dist = args[0]
    snapshot = args[1]

    base = os.path.expanduser('~/mirror/ubuntu')
    snapshot_base = os.path.expanduser('~/point-releases/%s' % snapshot)

    dst = os.path.join(snapshot_base, 'dists')
    os.makedirs(dst)
    for pocket in ('%s-security' % dist, '%s-updates' % dist):
        disttree = os.path.join(base, 'dists', pocket)
        src = os.path.join(base, disttree)
        if options.dry_run:
            print('cp -a %s %s' % (src, dst))
        else:
            subprocess.call(['cp', '-a', src, dst])


if __name__ == '__main__':
    main()