Class: Lono::Inspector::Summary

Inherits:
Base
  • Object
show all
Defined in:
lib/lono/inspector/summary.rb

Instance Method Summary collapse

Methods inherited from Base

#all_templates, #generate_templates, #initialize, #output_template, #run

Methods included from Blueprint::Root

#bundler_groups, #find_blueprint_root, #require_bundle_gems, #set_blueprint_root

Constructor Details

This class inherits a constructor from Lono::Inspector::Base

Instance Method Details

#perform(template) ⇒ Object 



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# File 'lib/lono/inspector/summary.rb', line 3

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

#print_parameters(label, parameters) ⇒ Object 



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# File 'lib/lono/inspector/summary.rb', line 25

def print_parameters(label, parameters)
  puts "#{label}:"
  if parameters.empty?
    text = label.downcase.include?("required") ? "required" : "optional"
    puts "  There are no #{text} 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

#print_parameters_summary ⇒ Object 



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# File 'lib/lono/inspector/summary.rb', line 16

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

#print_resource_types ⇒ Object 



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# File 'lib/lono/inspector/summary.rb', line 52

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

#resource_types ⇒ Object 



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# File 'lib/lono/inspector/summary.rb', line 41

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