Module: Hayde::Utils::Files

Included in:
Generator
Defined in:
lib/hayde/file_utils.rb

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/hayde/file_utils.rb', line 10

def self.included(base)
   
  # File list method adds accessor to specified attributes that behaves like FileList.
  # I can specify attribute and use it like FileList instance to 
  # include and exclude files, iterate throught file collection.
  # 
  # &names - names of attributes
  #
  # Example:
  #
  # class SomeClass
  #   include Hayde::Utils::Files
  #
  #   filelist_attribute :sources
  # end
  #
  # x = SomeClass.new
  # x.sources.include 'lib/**/*.rb'
  # x.sources.exclude 'doc/**/*'
  # x.each do |file|
  #   puts file
  # end
  #
  def base.filelist_attribute(*names)
    names.each do |name|
      define_method "#{name}" do
        files = instance_variable_get("@#{name}_files")
        if !files
          files = FileList.new()
          instance_variable_set("@#{name}_files", files)
        end
        files
      end
   
      define_method "#{name}=" do |files|
        if files && files.class != FileList
          files = FileList.new(files)
        end
        instance_variable_set("@#{name}_files", files)
      end
    end
  end
end