Ruby's fun, right?

likewise.rb

# likewise require
# by Pat Nakajima
# because I've been drinking more than Jack Barnette
# and
# to annoy John Susser and Aaron Peterson
#
# use to require files relative to the current file:
#
# likewise do
#   require "foo"         # require current-dir/lib
#   require "lib/foo"     # require current-dir/lib/foo
# end
module Kernel
  def likewise(&blk)
    Class.new {
      instance_methods.each { |m| undef_method(m) unless m.to_s =~ /__/ }

      def initialize(&block)
        @outside = eval('self', block.binding)
        Object.instance_method(:instance_eval).bind(self).call(&block)
      end

      def require(path)
        super(File.join(File.dirname(caller.first.split(':').first), path))
      end

      def method_missing(sym, *args, &block)
        @outside.send(sym, *args, &block)
      end
    }.new(&blk)
  end
end