Source Code for Module zeroinstall.cmd.remove_feed

 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, reader 
12  from zeroinstall.cmd import add_feed, UsageError, list_feeds 
13   
14  add_options = add_feed.add_options 
15   
16 -def handle(config, options, args): 
17          """@type args: [str]""" 
18          if len(args) == 2: 
19                  iface = config.iface_cache.get_interface(model.canonical_iface_uri(args[0])) 
20                  try: 
21                          feed_url = model.canonical_iface_uri(args[1]) 
22                  except SafeException: 
23                          feed_url = args[1]              # File might not exist any longer 
24   
25                  feed_import = add_feed.find_feed_import(iface, feed_url) 
26                  if not feed_import: 
27                          raise SafeException(_('Interface %(interface)s has no feed %(feed)s') % 
28                                                  {'interface': iface.uri, 'feed': feed_url}) 
29                  iface.extra_feeds.remove(feed_import) 
30                  writer.save_interface(iface) 
31          elif len(args) == 1: 
32                  add_feed.handle(config, options, args, add_ok = False, remove_ok = True) 
33          else: 
34                  raise UsageError() 
35   
36 -def complete(completion, args, cword): 
37          """@type completion: L{zeroinstall.cmd._Completion} 
38          @type args: [str] 
39          @type cword: int""" 
40          if cword > 1: return 
41          if cword == 0: 
42                  list_feeds.complete(completion, args[:1], 1) 
43                  # Or it could be a feed directly 
44                  completion.expand_files() 
45   
46          if cword == 1: 
47                  # With two arguments, we can only remove a feed that is registered 
48                  dummy = model.Interface(args[0]) 
49                  reader.update_user_overrides(dummy) 
50                  for feed in dummy.extra_feeds: 
51                          completion.add_filtered(feed.uri) 
52