#! /usr/bin/env python
#
# $Id$
#
# Copyright 2008 Platform Computing Inc.
#
# Licensed under GPL version 2; See LICENSE file for details.
#

from kusu.genupdates.downloader import Downloader
from primitive.system.software.probe import OS
from optparse import OptionParser
import sys
import os

parser = OptionParser(usage="usage: downloader [options] 'package1' ['package2'] ['package' ..]")
parser.add_option('-d', dest='dest', default='.', help='Destination directory')
parser.add_option('-t', action="store_true", dest='target', default=False,
                 help='Target the given os ver arch by the --os, --ver and --arch options')
parser.add_option('--os', dest='myos', help='Target os name')
parser.add_option('--ver', dest='ver', help='Target os version')
parser.add_option('--arch', dest='arch', help='Target os arch')

(options, args) = parser.parse_args()

myos = OS()
if options.target:
    if options.myos is None or options.ver is None or options.arch is None:
        print("Incomplete target os tuple. Please provide all three options --os, --ver and --arch.")
        sys.exit(-1)
    else:
        myos = (options.myos, options.ver, options.arch)
else:
    if options.myos is not None or options.ver is not None or options.arch is not None:
        print("Please use --os, --ver and --arch together with -t option.")
        sys.exit(-1)

if len(args) == 0:
    print("No packages requested. Please provide at least one package to download.")
    sys.exit(-1)

if not os.path.exists(options.dest):
    os.makedirs(options.dest)
destdir = options.dest

do = Downloader(destdir, target_os=myos)
try:
    do.downloadPackages(args)
except Exception, e:
    print e