How to use thor in rails? - ruby-on-rails

Question

Thor is a toolkit for building powerful command-line interfaces.
It always been used for single command line. If I want to use it in a rails project, for example:
lib/tasks/my_cli.rb
require "thor"
class MyCLI < Thor
desc "hello NAME", "say hello to NAME"
def hello(name)
puts "Hello #{name}"
end
end
Where to put the MyCLI.start(ARGV)?
If I put it under that file(lib/tasks/my_cli.rb), when I run my rspec test, it will show me the command message:
Commands:
rspec help [COMMAND] # Describe available commands or one specific command
rspec hello NAME # say hello to NAME
I don't want to see it in my bundle exec rspec, so I moved the MyCLI.start(ARGV) to bin/rails. It looks well. But after I do this:
$ ./bin/rails s -b 0.0.0.0
$ [CTRL+C]
I saw this message:
=> Booting Thin
=> Rails 4.2.0 application starting in development on http://0.0.0.0:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Thin web server (v1.6.3 codename Protein Powder)
Maximum connections set to 1024
Listening on 0.0.0.0:3000, CTRL+C to stop
^CStopping ...
Exiting
Could not find command "_b".
What does it mean:
Could not find command "_b".
So, I don't know a best practice about how to use thor in a rails project.

Answer 1

You have to use method_option:
https://github.com/erikhuda/thor/wiki/Method-Options
And don't pass arguments like if it would be a normal method
require "thor"
class MyCLI < Thor
desc "hello NAME", "say hello to NAME"
method_option :name, aliases: '-b', type: :string, desc: 'It`s the named passed'
def hello
puts "Hello #{options[:name]}"
end
end
Then use it with thor command:
thor mycli:hello -b Robert