Class: Aws::Cfn::Dsl::Template

Inherits:
TemplateDSL
  • Object
show all
Defined in:
lib/aws/cfn/dsl/template.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path = nil, &block) ⇒ Template

Returns a new instance of Template.



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# File 'lib/aws/cfn/dsl/template.rb', line 15

def initialize(path=nil,&block)
  @path = path || File.dirname(caller[2].split(%r'\s+').shift.split(':')[0])
  super() do
    # We do nothing with the template for now
  end
end

Instance Attribute Details

#dict ⇒ Object (readonly)

Returns the value of attribute dict.



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# File 'lib/aws/cfn/dsl/template.rb', line 9

def dict
  @dict
end

Instance Method Details

#file(b) ⇒ Object 



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# File 'lib/aws/cfn/dsl/template.rb', line 22

def file(b)
  block = File.read File.join(@path,b)
  eval block
end

#hash_refs(line, scope) ⇒ Object 



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# File 'lib/aws/cfn/dsl/template.rb', line 71

def hash_refs(line,scope)
  block_regex = %r/\{\s*:\S+\s*=>.*?\}|\{\s*\S+:\s*.*?\}/
  match = line.match %r/^([^#]*?)(#{block_regex})(.*)$/
  if match
    left = match[1]
    code = match[2]
    tail = match[3]
    while true
      braces = code.gsub(%r/[^{}]+/, '')
      len    = braces.size
      if len % 2 != 0
        nest = tail.match %r/^(.*?\})(.*)$/
        if nest
          code += nest[1]
          tail  = nest[2]
        else
          abort! "Mismatched {}'s"
        end
      else
        break
      end
    end
    h = nil
    eval "h = #{code}", binding
    k = h.keys[0]
    v = h.delete(k)
    v = scope[:compiler].sym_to_s(v)
    h[k.to_s] = v
    scope[:logger].debug h
    [left, h, tail.size > 0 ? hash_refs(tail,scope) : tail ]
  else
    "#{line}\n"
  end
end

#mapping(name, options = nil) ⇒ Object 



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# File 'lib/aws/cfn/dsl/template.rb', line 27

def mapping(name, options=nil)
  if options.nil?
    file "Mappings/#{name}.rb"
  else
    super(name,options)
  end
end

#output(name, options = nil) ⇒ Object

def resource_file(p)

file "Resources/#{p}.rb"

end



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# File 'lib/aws/cfn/dsl/template.rb', line 63

def output(name, options=nil)
  if options.nil?
    file "Outputs/#{name}.rb"
  else
    super(name,options)
  end
end

#parameter(name, options = nil) ⇒ Object

def mapping_file(p)

file "Mappings/#{p}.rb"

end



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# File 'lib/aws/cfn/dsl/template.rb', line 39

def parameter(name, options=nil)
  if options.nil?
    file "Parameters/#{name}.rb"
  else
    super(name,options)
  end
end

#resource(name, options = nil) ⇒ Object

def parameter_file(p)

file "Parameters/#{p}.rb"

end



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# File 'lib/aws/cfn/dsl/template.rb', line 51

def resource(name, options=nil)
  if options.nil?
    file "Resources/#{name}.rb"
  else
    super(name,options)
  end
end