[enh] Add auto-completion support in the cli

debian/control

@@ -14,7 +14,8 @@ Depends: ${misc:Depends}, ${python:Depends},
     python-yaml,
     python-bottle (>= 0.12),
     python-gnupg,
-    python-gevent-websocket
+    python-gevent-websocket,
+    python-argcomplete
 Replaces: yunohost-cli
 Breaks: yunohost-cli
 Description: prototype interfaces with ease in Python

moulinette/interfaces/cli.py

@@ -7,6 +7,8 @@ import getpass
 import locale
 from argparse import SUPPRESS
 
+import argcomplete
+
 from moulinette.core import MoulinetteError
 from moulinette.interfaces import (
     BaseActionsMapParser, BaseInterface, ExtendedArgumentParser,
@@ -294,6 +296,9 @@ class Interface(BaseInterface):
         if output_as and output_as not in ['json', 'plain']:
             raise MoulinetteError(errno.EINVAL, m18n.g('invalid_usage'))
 
+        # auto-complete
+        argcomplete.autocomplete(self.actionsmap.parser._parser)
+
         try:
             ret = self.actionsmap.process(args, timeout=5)
         except KeyboardInterrupt, EOFError: