Thor - Building CLI with ruby

Create command-line interface with thor

Transcript

1. Building command-line interface (CLI) with ruby
2. I have learnt ruby the rails way. http://www.frankwatching.com/wordpress/wp-content/uploads/2007/11/rails.jpg
3. Then... tryruby.org rubykoans.com rubeque.com more and more ruby
4. A rails app is a ruby app. A ruby app may NOT be a rails app.
5. Today Ruby on CLI
6. What for? Utility => curl Code Genertor => Rails generator Automation => db migration
7. Hello world puts "Hello world"
8. My ideal CLI mycli <command> [options]
9. I need to parse the command and options in mycli manually. ARGV or
11. Multiple commands desc "hi", "Say hi" def hi puts "hi !" end desc "bye", "Say goodbye" def bye puts "bye !" end
12. Passing argument desc "hello NAME", "Say hello to <NAME>" def hello(name) puts "hello #{name}!" end
13. Parsing options desc "hello NAME", "Say hello to <NAME>" method_options loudly: false def hello(name) name.upcase! if options[:loudly] puts "hello #{name}!" end
14. Documentation ready
15. Thanks @lchanmann
16. References http://whatisthor.com/ http://yehudakatz.com/2009/01/13/some-thor-news/ http://rubylearning.com/blog/2011/01/03/how-do-i-make-a-command-line-tool-in-ruby/ http://www.bounga.org/ruby/2011/09/12/thor-a-command-line-scripting-tool/ Demo: https://gist.github.com/3688473 Checkout thor on Github https://github.com/wycats/thor http://whatisthor.com/images/thor.png