class Bundler::Dependency

def ==(o)
  [name, version, require_as, only, except] ==
    [o.name, o.version, o.require_as, o.only, o.except]
end

def in?(environment)
  environment = environment.to_s
  return false unless !@only || @only.include?(environment)
  return false if @except && @except.include?(environment)
  true
end

def initialize(name, options = {}, &block)
  options.each do |k, v|
    options[k.to_s] = v
  end
  @name       = name
  @version    = options["version"] || ">= 0"
  @require_as = options["require_as"]
  @only       = options["only"]
  @except     = options["except"]
  @source     = options["source"]
  @block      = block
  if (@only && @only.include?("rubygems")) || (@except && @except.include?("rubygems"))
    raise InvalidEnvironmentName, "'rubygems' is not a valid environment name"
  end
end

def require_env(environment)
  return unless in?(environment)
  if @require_as
    Array(@require_as).each { |file| require file }
  else
    begin
      require name
    rescue LoadError
      # Do nothing
    end
  end
  @block.call if @block
end

def to_gem_dependency
  @gem_dep ||= Gem::Dependency.new(name, version)
end

def to_s
  to_gem_dependency.to_s
end