zeroinstall/cmd/run.py

   1 """
   2 The B{0install run} 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 import sys
   9
  10 from zeroinstall import _
  11 from zeroinstall.support import tasks
  12 from zeroinstall.cmd import UsageError, select
  13 from zeroinstall.injector import model
  14
  15 syntax = "URI [ARGS]"
  16
  17 def add_options(parser):
  18         select.add_generic_select_options(parser)
  19         parser.add_option("-m", "--main", help=_("name of the file to execute"))
  20         parser.add_option("-w", "--wrapper", help=_("execute program using a debugger, etc"), metavar='COMMAND')
  21         parser.disable_interspersed_args()
  22
  23 def handle(config, options, args):
  24         if len(args) < 1:
  25                 raise UsageError()
  26
  27         prog_args = args[1:]
  28
  29         def test_callback(sels):
  30                 from zeroinstall.injector import run
  31                 return run.test_selections(sels, prog_args,
  32                                              False,     # dry-run
  33                                              options.main)
  34
  35         app = config.app_mgr.lookup_app(args[0], missing_ok = True)
  36         if app is not None:
  37                 sels = app.get_selections()
  38                 r = app.get_requirements()
  39                 do_select = r.parse_update_options(options)
  40                 iface_uri = sels.interface
  41         else:
  42                 iface_uri = model.canonical_iface_uri(args[0])
  43                 do_select = True
  44
  45         if do_select or options.gui:
  46                 sels = select.get_selections(config, options, iface_uri,
  47                                         select_only = False, download_only = False,
  48                                         test_callback = test_callback)
  49                 if not sels:
  50                         sys.exit(1)     # Aborted by user
  51         else:
  52                 dl = app.download_selections(sels)
  53                 if dl:
  54                         tasks.wait_for_blocker(dl)
  55                         tasks.check(dl)
  56
  57         from zeroinstall.injector import run
  58         run.execute_selections(sels, prog_args, dry_run = options.dry_run, main = options.main, wrapper = options.wrapper, stores = config.stores)