lib.App._run(): default_completer=NoopCompleter()

By default, argcomplete uses argcomplete.FilesCompleter as default
for every argument. This mixes accessible files into the list of
possible completions. For most of jw-pkg's commands, that's unwanted,
so turn it off by defining a NoopCompleter class which does nothing,
and by set every arguments's default completer to a NoopCompleter
instance. If desired, completing files can be restored for an
argument by

   parser.add_argument("some-arg").completer = FilesCompleter()

Signed-off-by: Jan Lindemann <jan@janware.com>

src/python/jw/pkg/lib/App.py

@@ -103,8 +103,11 @@ class App: # export
     async def __run(self, argv=None) -> None:
 
         try:
+            class NoopCompleter:
+                def __call__(self, **kwargs):
+                    return ()
             import argcomplete # Don't require it to be compatible with minimal environments
-            argcomplete.autocomplete(self.__parser)
+            argcomplete.autocomplete(self.__parser, default_completer=NoopCompleter())
         except:
             pass