zeroinstall/cmd/download.py

   1 """
   2 The B{0install download} command-line interface.
   3 """
   4
   5 # Copyright (C) 2011, Thomas Leonard
   6 # See the README file for details, or visit http://0install.net.
   7
   8 from optparse import OptionParser
   9 import os, sys
  10 import logging
  11
  12 from zeroinstall import cmd, SafeException, _
  13 from zeroinstall.cmd import UsageError, select
  14 from zeroinstall.injector import model, autopolicy, selections, handler
  15 from zeroinstall.injector.iface_cache import iface_cache
  16
  17 syntax = "URI"
  18
  19 def add_options(parser):
  20         select.add_options(parser)
  21         parser.add_option("", "--show", help=_("show where components are installed"), action='store_true')
  22
  23 def handle(options, args):
  24         if len(args) != 1:
  25                 raise UsageError()
  26         uri = args[0]
  27         iface_uri = model.canonical_iface_uri(args[0])
  28
  29         sels = select.get_selections(options, iface_uri,
  30                                 select_only = False, download_only = True, test_callback = None)
  31         if not sels:
  32                 sys.exit(1)     # Aborted by user
  33
  34         if options.xml:
  35                 select.show_xml(sels)
  36         if options.show:
  37                 select.show_human(sels)