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Contents
require 'forwardable'
require_relative './intrinsic_functions'
module Convection
module DSL
##
# Methods for defining DSL/Models
##
module ClassHelpers
def attribute(attribute_name)
attr_writer attribute_name
define_method(attribute_name) do |value = nil|
instance_variable_set("@#{ attribute_name }", value) unless value.nil?
instance_variable_get("@#{ attribute_name }")
end
end
def list(attribute_name)
define_method(attribute_name) do |value = nil|
collection = instance_variable_get("@#{ attribute_name }")
collection << value unless value.nil?
collection
end
end
end
##
# Helper methods for creating templates
##
module Helpers
extend Forwardable
include DSL::IntrinsicFunctions
def_delegators :@template, :stack, :parameters, :mappings, :resources, :outputs
class << self
def included(mod)
mod.extend(DSL::ClassHelpers)
end
def method_name(cf_type)
nodes = cf_type.split('::')
nodes.shift # Remove AWS::
## Cammel-case to snake-case
nodes.map! do |n|
n.split(/([A-Z0-9])(?![A-Z0-9])(?<!$)/)
.reject(&:empty?)
.reduce('') { |a, e| (e.length == 1 && !a.empty?) ? a + "_#{e}" : a + e }
.downcase
end
nodes.join('_').downcase
end
end
## Convert various casings to CamelCase
def camel_case(str)
str.downcase.split(/[\.\-_]/).map(&:capitalize).join
end
## Convert various casings to snake_case
def snake_case(str)
str.downcase.split(/[\.\-_]/).join('_')
end
## Convert various casings to SCREAMING_SNAKE_CASE
def screaming_snake_case(str)
str.upcase.split(/[\.\-_]/).join('_')
end
end
end
end
Version data entries
58 entries across 58 versions & 1 rubygems