module S3Ranger
  def S3Ranger.safe_join(parts)
    File.join *(parts.select {|v| !v.nil? && !v.empty? })
  end

# class Object
#   # note that this method is already defined in Ruby 1.9
#   def define_singleton_method(name, callable = nil, &block)
#     block ||= callable
#     metaclass = class << self; self; end
#     metaclass.send(:define_method, name, block)
#   end
# end
end