0launch

   1 #!/usr/bin/env python
   2 import os, sys
   3 from optparse import OptionParser
   4
   5 from zeroinstall.injector import model, download, autopolicy, run
   6
   7 parser = OptionParser(usage="usage: %prog [options] interface [args]\n"
   8                             "       %prog --list [search-term]")
   9 parser.add_option("-g", "--gui", help="show graphical policy editor", action='store_true')
  10 parser.add_option("-l", "--list", help="list all known interfaces", action='store_true')
  11 parser.add_option("-r", "--refresh", help="refresh all used interfaces", action='store_true')
  12 parser.add_option("-v", "--version", help="display version information", action='store_true')
  13 parser.disable_interspersed_args()
  14
  15 (options, args) = parser.parse_args()
  16
  17 if options.list:
  18         if len(args) == 0:
  19                 match = None
  20         elif len(args) == 1:
  21                 match = args[0].lower()
  22         else:
  23                 parser.print_help()
  24                 sys.exit(1)
  25         from zeroinstall.injector import reader
  26         for i in reader.list_all_interfaces():
  27                 if match and match not in i.lower(): continue
  28                 print i
  29         sys.exit(0)
  30
  31 if options.version:
  32         import zeroinstall
  33         print "0launch (zero-install) " + zeroinstall.version
  34         print "Copyright (C) 2005 Thomas Leonard"
  35         print "This program comes with ABSOLUTELY NO WARRANTY,"
  36         print "to the extent permitted by law."
  37         print "You may redistribute copies of this program"
  38         print "under the terms of the GNU General Public License."
  39         print "For more information about these matters, see the file named COPYING."
  40         sys.exit(0)
  41
  42 if len(args) < 1:
  43         parser.print_help()
  44         sys.exit(1)
  45
  46 if options.gui:
  47         interface_uri = 'http://0install.net/2005/interfaces/injector-gui'
  48         prog_args = args[:]
  49 else:
  50         interface_uri = args[0]
  51         prog_args = args[1:]
  52
  53 if not interface_uri.startswith('http:'):
  54         interface_uri = os.path.realpath(interface_uri) # For testing
  55
  56 # Singleton instance used everywhere...
  57 policy = autopolicy.AutoPolicy(interface_uri)
  58 policy.recalculate()
  59
  60 if options.refresh:
  61         for x in policy.walk_interfaces():
  62                 policy.begin_iface_download(x, False)
  63
  64 # Get interfaces...
  65 try:
  66         policy.wait_for_downloads()
  67 except model.SafeException, ex:
  68         print >>sys.stderr, ex
  69         sys.exit(1)
  70
  71 try:
  72         policy.execute(prog_args)
  73 except model.SafeException, ex:
  74         if policy.network_use != model.network_full:
  75                 print >>sys.stderr, "Error. Retrying with network use = full"
  76                 policy.network_use = model.network_full
  77                 policy.recalculate()
  78                 try:
  79                         policy.execute(prog_args)
  80                 except model.SafeException, ex:
  81                         print >>sys.stderr, ex
  82         else:
  83                 print >>sys.stderr, ex