kugaevsky/guard-rails_best_practices

require 'guard'
require 'guard/guard'

require File.join(File.dirname(__FILE__), "rails_best_practices/version")

module Guard
  class RailsBestPractices < Guard
    autoload :Notifier, 'guard/rails_best_practices/notifier'

    def initialize(watchers = [], options = {})
      @options = {  :vendor         => true,
                    :spec           => true,
                    :test           => true,
                    :features       => true,
                    :run_at_start   => true
                  }
      @options.merge! options

      super watchers, @options
    end

    def start
      run_bestpractices if @options[:run_at_start]
    end

    def stop
      true
    end

    def reload
      run_bestpractices
    end

    def run_all
      run_bestpractices
    end

    def run_on_change(paths)
      run_bestpractices
    end

    def run_on_deletion(paths)
    end

    def notify?
      !!@options[:notify]
    end

  private
    def run_bestpractices
      started_at = Time.now
      cmd_args = ['rails_best_practices']
      @options.each_pair { |key, value| cmd_args << format_option(key, value) }
      cmd = cmd_args.compact.join(' --')

      UI.info "Running Rails Best Practices checklist with command\n=> #{cmd}\n", :reset => true

      @result = system(cmd)

      Notifier::notify( @result, Time.now - started_at ) if notify?
      @result
    end

    def format_option(key, value)
      unless [:run_at_start, :notify].include?(key)
        arg = key.to_s.gsub('_','-')
        arg = "#{arg} #{value}" if [:format, :exclude, :only, :output_file].include?(key)
        value ? arg : nil
      end
    end
  end
end