Contents

require 'clamp/subcommand'

module Clamp
  class Subcommand

    module Declaration

      def recognised_subcommands
        @recognised_subcommands ||= []
      end

      def subcommand(name, description, subcommand_class = self, &block)
        if block
          # generate a anonymous sub-class
          subcommand_class = Class.new(subcommand_class, &block)
        end
        recognised_subcommands << Subcommand.new(name, description, subcommand_class)
      end

      def has_subcommands?
        !recognised_subcommands.empty?
      end

      def find_subcommand(name)
        recognised_subcommands.find { |sc| sc.is_called?(name) }
      end

      attr_writer :default_subcommand

      def default_subcommand(*args, &block)
        if args.empty?
          @default_subcommand
        else
          $stderr.puts "WARNING: Clamp default_subcommand syntax has changed; check the README."
          $stderr.puts "  (from #{caller.first})"
          subcommand(*args, &block)
          self.default_subcommand = args.first
        end
      end

    end

  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
clamp-0.3.0	lib/clamp/subcommand/declaration.rb