Module: Hudkins::Mixin

Included in:
Job
Defined in:
lib/hudkins/mixin.rb

Overview

extend Hudkins::Mixin to include DSL style methods

Instance Method Summary collapse

Instance Method Details

#attr_accessor_from_config(*args) ⇒ Object

combines attr_reader,writer,post_from_config



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# File 'lib/hudkins/mixin.rb', line 97

def attr_accessor_from_config *args
  attr_reader_from_config *args
  attr_writer_from_config *args
  attr_post_from_config *args
end

#attr_post_from_config(method_name, search_path, type = :default) ⇒ Object

Description

see attr_reader_from_config

(optionally) update config node and immediately post back the config then return the updated value

‘!’ is added to end of method_name to signify post call



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# File 'lib/hudkins/mixin.rb', line 85

def attr_post_from_config method_name, search_path, type = :default
  attr_reader_from_config method_name, search_path, type unless self.respond_to? method_name
  define_method "#{method_name}!".to_sym do |arg|
    # complains if arg isn't given..
    send("#{method_name}=", arg) if arg
    post_config!
    self.send(method_name)
  end
end

#attr_reader_from_config(method_name, search_path, type = :default) ⇒ Object

Description

Similar to attr_reader but takes additional parameters

:bool type addes a method_name? alias

Examples:

class MyObj
  attr_reader_from_config :disabled, "//project//disabled", :bool
end

MyObj.new.disabled? # => true

Parameters:

method_name

attr_reader method name

search_path

Nokogiri.at search path

type

:fixnum # => converts config content to integer

:bool # => creates a boolean reader method. useful

when the config returns string "true" but True class is
desirable

Class # => ie. a value of ‘Integer’ will result in

typecasting via Integer(value)



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# File 'lib/hudkins/mixin.rb', line 36

def attr_reader_from_config method_name, search_path, type = :default
  # could we do something like inspect el.children.size? for arrays?
  define_method method_name do
    el = config.at(search_path)
    if el
      case type
      when :bool then
        /true/i === el.content
      when :fixnum, :int then
        el.content.to_i
      when :array then
        warn ":array not implemented yet"
        #value = []
        #el.children
      when Class then
        # Integer(value)
        Kernel.send(type.name, el.content)
      else
        el.content
      end
    else
      warn "`#{search_path}' was not found in config."
    end
  end
  # use alias_method instead of explicitely defining the method so I can
  # call the method_name without the ? in internal methods.
  alias_method "#{method_name}?".to_sym, method_name if :bool === type
end

#attr_writer_from_config(method_name, search_path, type = :default) ⇒ Object

Description

see attr_reader_from_config

update config node



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# File 'lib/hudkins/mixin.rb', line 70

def attr_writer_from_config method_name, search_path, type = :default
  define_method "#{method_name}=".to_sym do |arg|
    config.at(search_path).content = arg
    arg
  end
end