Class: Aws::Cfn::Compiler::Base

Inherits:
Dsl::Base
  • Object
show all
Defined in:
lib/aws/cfn/compiler/base.rb

Direct Known Subclasses

Main

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Base

Returns a new instance of Base.



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# File 'lib/aws/cfn/compiler/base.rb', line 17

def initialize
  super
  @items = {}
end

Instance Attribute Details

#items ⇒ Object

Returns the value of attribute items.



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# File 'lib/aws/cfn/compiler/base.rb', line 13

def items
  @items
end

#opts ⇒ Object

Returns the value of attribute opts.



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# File 'lib/aws/cfn/compiler/base.rb', line 14

def opts
  @opts
end

#spec ⇒ Object

Returns the value of attribute spec.



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# File 'lib/aws/cfn/compiler/base.rb', line 15

def spec
  @spec
end

Instance Method Details

#load_spec(spec = nil) ⇒ Object 



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# File 'lib/aws/cfn/compiler/base.rb', line 80

def load_spec(spec=nil)
  if spec
    abs = nil
    [spec, File.join(@config[:directory],spec)].each do |p|
      begin
        abs = File.realpath(File.absolute_path(File.expand_path(p)))
        break if File.exists?(abs)
      rescue => e
        @logger.debug e
        # pass
      end
    end

    if not abs.nil? and File.exists?(abs)
      logStep "Loading specification #{@config[:expandedpaths] ? abs : spec}..."
      unless abs =~ /\.(json|ya?ml|jts|yts)\z/i
        abort! "Unsupported specification file type: #{spec}=>#{abs}\n\tSupported types are: json,yaml,jts,yts\n"
      end

      spec = File.read(abs)

      case File.extname(File.basename(abs)).downcase
        when /json|jts/
          @spec = JSON.parse(spec)
        when /yaml|yts/
          @spec = YAML.load(spec)
        else
          abort! "Unsupported file type for specification: #{spec}"
      end
    else
      abort! "Unable to open specification"+ (abs.nil? ? " or {,#{@config[:directory]}/}#{spec} not found" : ": #{abs}")
    end
    @dsl ||= Aws::Cfn::Dsl::Template.new(@config[:directory])
    %w( Mappings Parameters Resources Outputs ).each do |dir|
      load_dir(dir,@spec)
    end
  else
    raise "No specification provided"
  end
end

#save_template(output_file, compiled) ⇒ Object 



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# File 'lib/aws/cfn/compiler/base.rb', line 57

def save_template(output_file,compiled)
  output_file = File.realpath(File.expand_path(output_file)) if @config[:expandedpaths]
  logStep "Writing compiled file to #{output_file}..."
  begin
    hash = {}
    compiled.each do |item,value|
      unless value.nil?
        if (not value.is_a?(Hash)) or (value.count > 0)
          hash[item] = value
        end
      end
    end

    File.open output_file, 'w' do |f|
      f.write JSON.pretty_generate(hash, { indent: "\t", space: ' '})
    end
    @logger.info '  Compiled file written.'
  rescue
    @logger.error "!!! Could not write compiled file: #{$!}"
    abort!
  end
end

#validate(compiled) ⇒ Object 



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# File 'lib/aws/cfn/compiler/base.rb', line 22

def validate(compiled)
  abort! 'No Resources!?' unless compiled['Resources']
  logStep 'Validating compiled file...'

  # Mappings => Resources
  maps  = find_maps(compiled) #.select { |a| !(a =~ /^AWS::/) }
  rscs  = compiled['Resources'].keys
  mpgs  = compiled['Mappings'].nil? ? [] : compiled['Mappings'].keys
  names = rscs+mpgs

  unless (maps-names).empty?
    @logger.error '!!! Unknown mappings !!!'
    (maps-names).each do |name|
      @logger.error "  #{name}"
    end
    abort!
  end
  @logger.info '  Mappings validated'

  # Parameters => Resources => Outputs
  refs  = find_refs(compiled).select { |a,_| !(a =~ /^AWS::/) }
  prms  = compiled['Parameters'].keys rescue []
  # outs  = compiled['Outputs'].keys rescue []
  names = rscs+prms

  unless (refs.keys-names).empty?
    @logger.error '!!! Unknown references !!!'
    (refs.keys-names).each do |name|
      @logger.error "  #{name} from #{refs[name][0]}:#{refs[name][1]}"
    end
    abort!
  end
  @logger.info '  References validated'
end