Class: Catlass::DSLContext

Inherits:
Object
  • Object
show all
Defined in:
lib/catlass/dsl_context.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DSLContext

Returns a new instance of DSLContext.



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# File 'lib/catlass/dsl_context.rb', line 5

def initialize
  @jobs = []
  @templates = {}
  @context = Hashie::Mash.new()
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args, &block) ⇒ Object 



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# File 'lib/catlass/dsl_context.rb', line 17

def method_missing(method_name, *args, &block)
  if [:Job].include?(method_name)
    hash = dslh_eval(block)
    hash['attributes']['name'] = args[0]
    @jobs << hash
  else
    super
  end
end

Instance Method Details

#context ⇒ Object 



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# File 'lib/catlass/dsl_context.rb', line 31

def context
  @context
end

#dslh_eval(block) ⇒ Object 



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# File 'lib/catlass/dsl_context.rb', line 47

def dslh_eval(block)
  scope_hook = proc do |scope|
    scope.instance_eval(<<-'EOS')
      def include_template(template_name, context = {})
        tmplt = @templates[template_name.to_s]

        unless tmplt
          raise "Template '#{template_name}' is not defined"
        end

        context_orig = @context
        @context = @context.merge(context)
        instance_eval(&tmplt)
        @context = context_orig
      end

      def context
        @context
      end

      def __dsl(&block)
        @__hash__ = JSON.generate(Dslh::ScopeBlock.nest(binding, 'block'))
      end

      def __script(str)
        str.split(/\R/)
      end

      def __script_file(file)
        File.read(file).split(/\R/)
      end
    EOS
  end

  scope_vars = {templates: @templates, context: @context}

  Dslh.eval(allow_empty_args: true, scope_hook: scope_hook, scope_vars: scope_vars, &block)
end

#eval_dsl(dsl_file) ⇒ Object 



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# File 'lib/catlass/dsl_context.rb', line 11

def eval_dsl(dsl_file)
  @_dsl_file = dsl_file
  instance_eval(File.read(dsl_file), dsl_file)
  @jobs
end

#require(file) ⇒ Object 



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# File 'lib/catlass/dsl_context.rb', line 35

def require(file)
  jobfile = (file =~ %r|\A/|) ? file : File.expand_path(File.join(File.dirname(@_dsl_file), file))

  if File.exist?(jobfile)
    instance_eval(File.read(jobfile), jobfile)
  elsif File.exist?(jobfile + '.rb')
    instance_eval(File.read(jobfile + '.rb'), jobfile + '.rb')
  else
    Kernel.require(file)
  end
end

#template(name, &block) ⇒ Object 



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# File 'lib/catlass/dsl_context.rb', line 27

def template(name, &block)
  @templates[name.to_s] = block
end