Merge "Support list commands by group name keyword"

1 files changed, 14 insertions, 0 deletions

diff --git a/openstackclient/common/module.py b/openstackclient/common/module.py
index ba911ecb..20497f21 100644
--- a/openstackclient/common/module.py
+++ b/openstackclient/common/module.py
@@ -29,12 +29,26 @@ class ListCommand(command.Lister):
 
     auth_required = False
 
+    def get_parser(self, prog_name):
+        parser = super(ListCommand, self).get_parser(prog_name)
+        parser.add_argument(
+            '--group',
+            metavar='<group-keyword>',
+            help=_('Show commands filtered by a command group, for example: '
+                   'identity, volume, compute, image, network and '
+                   'other keywords'),
+        )
+        return parser
+
     def take_action(self, parsed_args):
         cm = self.app.command_manager
         groups = cm.get_command_groups()
         groups = sorted(groups)
         columns = ('Command Group', 'Commands')
 
+        if parsed_args.group:
+            groups = (group for group in groups if parsed_args.group in group)
+
         commands = []
         for group in groups:
             command_names = cm.get_command_names(group)