Do we really need to use cmd/cmd2?

[manasdk]

ps : this is me whining since I have to do more work to nicely integrate voodoo/metagen

Gripes

• Dislike the documentation. (https://github.com/StackStorm/st2sdk/blob/master/st2sdk/app.py#L85)
• Can't use arg_parse since make_option uses optparse which is deprecated in 2.7+.

Impact
I don't see how we can make the cli tool modular if we would like to add more commands. I tried to move voodoo/metagen into st2sdk and ended up with do_metagen and help_metagen commands. All the args end up being params of do_metagen and help need to be kept consistent by updating disconnected string.

Overall, I tried by eventually it made me mad.

Also, do we really care about an interactive mode?

[manasdk]

Some reasonable frameworks here -
http://docs.python-guide.org/en/latest/scenarios/cli/

The openstack folks seem to use cliff. Perhaps you have used some of these before and know why they may or may not be a good idea.