Class: Gem::Command

Inherits:
Object show all
Defined in:
lib/g-gem/gems_extensions.rb

Overview

class Gem::DependencyList

Direct Known Subclasses

Portage::Command

Defined Under Namespace

Modules: WithPortage

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.WithPortage(methname, &block) ⇒ Object

module WithPortage



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# File 'lib/g-gem/gems_extensions.rb', line 91

def self.WithPortage(methname, &block)
  Module.new do
    include WithPortage     

    if block
      define_method("maybe_#{methname}_with_portage".intern, &block)
    else
      module_eval <<-MAYBE
      def maybe_#{methname}_with_portage(*args, &prc)
        if with_portage?
          #{methname}_with_portage(*args, &prc)
        else
          #{methname}_without_portage(*args, &prc)
        end
      end
      MAYBE
    end

    singleton_eval do # class << self
      define_method(:append_features) do |mod|
        super
        mod.singleton_eval do # class << mod
          define_method(:extend_object) do |obj|
            super
            obj.singleton_eval <<-ALIAS # class << obj
            alias_method :#{methname}_without_portage, :#{methname}
            alias_method :#{methname}, :maybe_#{methname}_with_portage
            ALIAS
            obj.instance_eval do 
              add_option '--[no-]portage', 
              "#{command.capitalize} using the portage system" do |v, h|
                h[:with_portage] = v
              end
            end
            obj.instance_eval &block if block
          end
        end
      end
    end
  end # WithPortage anon module
end

Instance Method Details

#handle_options_with_portage(args) ⇒ Object Also known as: handle_options 



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# File 'lib/g-gem/gems_extensions.rb', line 44

def handle_options_with_portage(args)
  port_arg = args.index('--portage')
  port_arg = args.slice!(port_arg.succ .. -1) if port_arg
  handle_options_without_portage(args)
  @options[:portage_args] = port_arg if port_arg
  @options[:args]
end