Contents

module Lono::Inspector
  class Summary < Base
    def perform(template)
      # little dirty but @template is used in data method so we dont have to pass it to the data method
      @template = template

      puts "=> CloudFormation Template Summary for template #{@template.color(:sienna)}:"
      return if @options[:noop]

      print_parameters_summary

      puts "Resources:"
      print_resource_types
    end

    def print_parameters_summary
      if parameters.empty?
        puts "There are no parameters in this template."
      else
        print_parameters("Required Parameters", required_parameters)
        print_parameters("Optional Parameters", optional_parameters)
      end
    end

    def print_parameters(label, parameters)
      puts "#{label}:"
      if parameters.empty?
        puts "  There are no #{label.downcase} parameters"
      else
        parameters.each do |logical_id, p|
          output = "  #{logical_id} (#{p["Type"]})"
          if p["Default"]
            output << " Default: #{p["Default"]}"
          end
          puts output
        end
      end
    end

    def resource_types
      resources = data["Resources"]
      return unless resources

      types = Hash.new(0)
      resources.each do |logical_id, resource|
        types[resource["Type"]] += 1
      end
      types
    end

    def print_resource_types
      unless resource_types
        puts "No resources found."
        return
      end

      types = resource_types.sort_by {|r| r[1] * -1} # Hash -> 2D Array
      types.each do |a|
        type, count = a
        printf "%3s %s\n", count, type
      end
      printf "%3s %s\n", resource_types.size, "Total"
    end
  end
end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
lono-5.3.4	lib/lono/inspector/summary.rb
lono-5.3.3	lib/lono/inspector/summary.rb
lono-5.3.2	lib/lono/inspector/summary.rb
lono-5.3.1	lib/lono/inspector/summary.rb
lono-5.3.0	lib/lono/inspector/summary.rb