Class: Stackup::YAML::CloudFormationToRuby

Inherits:
Psych::Visitors::ToRuby
  • Object
show all
Defined in:
lib/stackup/yaml.rb

Overview

Custom Psych node visitor, with CloudFormation extensions.

Instance Method Summary collapse

Instance Method Details

#accept(target) ⇒ Object 



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# File 'lib/stackup/yaml.rb', line 53

def accept(target)
  case target.tag
  when "!Ref"
    { "Ref" => super }
  when "!GetAtt"
    { "Fn::GetAtt" => array_or_dotted_string(super) }
  when "!GetAZs"
    { "Fn::GetAZs" => (super || "") }
  when /^!(\w+)$/
    { "Fn::#{Regexp.last_match(1)}" => super }
  else
    super
  end
end

#array_or_dotted_string(arg) ⇒ Object 



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# File 'lib/stackup/yaml.rb', line 68

def array_or_dotted_string(arg)
  if arg.respond_to?(:split)
    arg.split(".", 2)
  else
    arg
  end
end