Module: Aws::Cfn::Compiler::Parse

Included in:
Base
Defined in:
lib/aws/cfn/compiler/mixins/parse.rb

Instance Method Summary collapse

Instance Method Details

#parse ⇒ Object 



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# File 'lib/aws/cfn/compiler/mixins/parse.rb', line 6

def parse
  @dsl ||= Aws::Cfn::Dsl::Template.new(@config[:directory])
  %w( Mappings Parameters Resources Outputs ).each do |section|
    parse_section(section,@spec)
  end
end

#parse_rb_file(base, section, filename) ⇒ Object 



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# File 'lib/aws/cfn/compiler/mixins/parse.rb', line 83

def parse_rb_file(base, section, filename)
  Aws::Cfn::Compiler.binding ||= {}
  Aws::Cfn::Compiler.binding[section] ||= {}
  Aws::Cfn::Compiler.binding[section][base] ||= {
      brick_path: @config[:directory],
      template:   @dsl,
      logger:     @logger,
      compiler:   self
  }
  source_file = File.expand_path(filename)
  # source      = IO.read(source_file)
  eval "require source_file", binding
  unless @dsl.dict[section.to_sym]
    abort! "Unable to compile/expand #{filename} for #{section}/#{base}"
  end
  sym_to_s(@dsl.dict[section.to_sym])
end

#parse_section(section, spec = nil) ⇒ Object

noinspection RubyGlobalVariableNamingConvention



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

def parse_section(section,spec=nil)
  logStep "Parsing #{section}..."

  if spec and spec[section]
    abort! "No such directory: #{@config[:directory]} (I am here: #{Dir.pwd})" unless File.directory?(@config[:directory])
    @items          ||= {}
    @items[section] ||= {}
    get  = {}
    item = {}
    spec[section].each do |rsrc|
      @logger.info "\tUsing #{section}::#{rsrc}"
      refp,sub,base,rel = map_resource_reference(rsrc)
      if refp.nil?
        path = vet_path(section)
      else
        path = vet_path(sub ? sub : section, refp, rel)
      end
      unless get[path]
        get[path] = get_file_set([".*"], path, @config[:precedence])
      end
      set = get[path]
      if set[base]
        if item.has_key?(base)
          @logger.error "  !! error: Duplicate item: #{section}/#{base}"
          abort!
        end

        filename = set[base]
        unless filename =~ /\.(ru?by?|ya?ml|js(|on))\z/i
          @logger.info "Brick not supported/ relevant: #{filename}"
          next
        end

        begin
          @logger.debug "  reading #{filename}"
          content = File.read(filename)
          next if content.size==0

          if filename =~ /\.(rb|ruby)\z/i
            item.merge! parse_rb_file(base, section, filename)
          elsif filename =~ /\.js(|on)\z/i
            item.merge! JSON.parse(content)
          elsif filename =~ /\.ya?ml\z/i
            item.merge! YAML.load(content)
          else
            next
          end

        rescue
          abort! "  !! error: #{$!}"
        end
      else
        abort! "  !! error: #{section}/#{base} not found!"
      end
    end
    item.keys.each { |key|
      if @items[section].has_key?(key)
        abort! "  !! error: Duplicate item: #{section}/#{key}"
      end
    }
    @items[section].merge! item

    unless @items[section].keys.count == spec[section].count
      abort! "  !! error: Suspect that a #{section} item was missed! \nRequested: #{spec[section]}\n    Found: #{@items[section].keys}"
    end
  end

end

#sym_to_s(hash) ⇒ Object 



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# File 'lib/aws/cfn/compiler/mixins/parse.rb', line 101

def sym_to_s(hash)
  case hash.class.name
    when /Hash/
      item = {}
      hash.each { |k,v|
        item[k.to_s] = sym_to_s(v)
      }
      item
    when /Array/
      hash.map{|e| sym_to_s(e) }
    when /Fixnum|String|TrueClass|FalseClass/
      hash
    when /Symbol/
      hash.to_s
    else
      abort! "Internal error: #{hash} is a #{hash.class.name} which our Ruby parsing is not prepared for. Fix #{__FILE__}::sym_to_s"
  end
end