From: Nick Klauer <klauer@...>
Date: 2011-04-09T00:51:14+09:00
Subject: Thor gem: how to display a USAGE: banner when passing in 0 arguments

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So I can't find any good place to post this question, unless I'm filing it
as a bug to the gem authors.  Before I do that, I'm hoping someone in this
group might know the answer.

With the Thor <http://rubygems.org/gems/thor> gem, it looks to do
almost everything I need to create a pretty rich command-line interface for
generating scaffolding for a project. I want to provide the user a "usage
banner" when they call the app without passing any arguments.  I don't
know/can't find the documentation stating how this is configured in an app.
 Does anyone have a simple code example that shows how this might be done?

class App < Thor

  desc "do awesome stuff"
  def awesomeifier
    ...
  end

  ....

  def no_args
    # print some banner or something
  end

end

App.start


-Nick Klauer

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