Class: TFDSL::Block

Inherits:
Object
  • Object
show all
Defined in:
lib/tfdsl/block.rb

Overview

This class is the representation of terraform configuration block www.terraform.io/docs/configuration/

Direct Known Subclasses

DataSource, Locals, Provider, Resource, TFModule, Terraform, Variable

Constant Summary collapse

@@formatter = 
Formatter.new

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(&block) ⇒ Block

Returns a new instance of Block.



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# File 'lib/tfdsl/block.rb', line 7

def initialize(&block)
  @__blocks__ = []
  instance_eval(&block) if block_given?
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/tfdsl/block.rb', line 12

def method_missing(method_name, *args, &block)
  super if [:respond_to_missing?].include? method_name
  return method_missing_handler(method_name, *args, &block)
end

Instance Attribute Details

#__labels__ ⇒ Object (readonly)

Returns the value of attribute __labels__.



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# File 'lib/tfdsl/block.rb', line 5

def __labels__
  @__labels__
end

#__type__ ⇒ Object (readonly)

Returns the value of attribute __type__.



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# File 'lib/tfdsl/block.rb', line 5

def __type__
  @__type__
end

Instance Method Details

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



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# File 'lib/tfdsl/block.rb', line 17

def method_missing_handler(method_name, *args, &block)
  method = method_name.to_s.gsub(/=$/, '')

  if block_given?
    r = Block.new
    r.__type__ = method
    r.__labels__ = args
    @__blocks__ << r
    return r.instance_eval(&block)
  end

  return instance_variable_set "@#{method}", *args unless args.empty?
  return instance_variable_get "@#{method}" if args.empty?
end

#respond_to_missing?(_method_name, _include_private = true) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/tfdsl/block.rb', line 36

def respond_to_missing?(_method_name, _include_private = true)
  true
end

#timeout(*args, &block) ⇒ Object 



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# File 'lib/tfdsl/block.rb', line 32

def timeout(*args, &block)
  method_missing_handler :timeout, *args,  &block
end

#to_json_repr(depth = 0) ⇒ Object 



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# File 'lib/tfdsl/block.rb', line 52

def to_json_repr(depth = 0)
  block = { 'tmp' => {} }

  ref = block['tmp']

  labels = __labels__.dup
  labels = [__type__] + labels if !__type__.empty? && depth.zero?

  labels.each do |l|
    ref[l] = {} if ref[l].nil?
    ref = ref[l]
  end

  instance_variables.each do |var|
    var_name = var.to_s.gsub(/^@/, '')
    next if var_name =~ /^__/

    ref[var_name] = send var_name
  end

  __blocks__.each do |b|
    json = b.to_json_repr depth + 1
    if b.__labels__.empty?
      if ref[b.__type__].nil?
        ref[b.__type__] = json
      else
        ref[b.__type__] = [ref[b.__type__], json].flatten
      end
    else
      ref[b.__type__] = [] if ref[b.__type__].nil?
      ref[b.__type__] << json
    end
  end
  block['tmp']
end

#to_s ⇒ Object 



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# File 'lib/tfdsl/block.rb', line 48

def to_s
  to_tf
end

#to_str ⇒ Object 



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# File 'lib/tfdsl/block.rb', line 44

def to_str
  to_tf
end

#to_tf ⇒ Object 



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# File 'lib/tfdsl/block.rb', line 40

def to_tf
  @@formatter.format self
end