module Thor::Base

def self.shell


it will use a colored log, otherwise it will use a basic one without color.
Returns the shell used in all Thor classes. If you are in a Unix platform 
def self.shell
  @shell ||= if ENV['THOR_SHELL'] && ENV['THOR_SHELL'].size > 0
    Thor::Shell.const_get(ENV['THOR_SHELL'])
  elsif Config::CONFIG['host_os'] =~ /mswin|mingw/
    Thor::Shell::Basic
  else
    Thor::Shell::Color
  end
end