zeroinstall/cmd/remove_feed.py

   1 """
   2 The B{0install remove-feed} 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 syntax = "[INTERFACE] FEED"
   9
  10 from zeroinstall import SafeException, _
  11 from zeroinstall.injector import model, writer
  12 from zeroinstall.cmd import add_feed, UsageError
  13
  14 add_options = add_feed.add_options
  15
  16 def handle(config, options, args):
  17         if len(args) == 2:
  18                 iface = config.iface_cache.get_interface(model.canonical_iface_uri(args[0]))
  19                 try:
  20                         feed_url = model.canonical_iface_uri(args[1])
  21                 except SafeException:
  22                         feed_url = args[1]              # File might not exist any longer
  23
  24                 feed_import = add_feed.find_feed_import(iface, feed_url)
  25                 if not feed_import:
  26                         raise SafeException(_('Interface %(interface)s has no feed %(feed)s') %
  27                                                 {'interface': iface.uri, 'feed': feed_url})
  28                 iface.extra_feeds.remove(feed_import)
  29                 writer.save_interface(iface)
  30         elif len(args) == 1:
  31                 add_feed.handle(config, options, args, add_ok = False, remove_ok = True)
  32         else:
  33                 raise UsageError()