class Cucumber::Rake::Task::ForkedCucumberRunner

def cmd
  if use_bundler
    [ RUBY, '-S', 'bundle', 'exec', 'cucumber', @cucumber_opts,
    @feature_files ].flatten
  else
    [ RUBY, '-I', load_path(@libs), quoted_binary(@cucumber_bin),
    @cucumber_opts, @feature_files ].flatten
  end
end

def initialize(libs, cucumber_bin, cucumber_opts, bundler, feature_files)
  @libs          = libs
  @cucumber_bin  = cucumber_bin
  @cucumber_opts = cucumber_opts
  @bundler       = bundler
  @feature_files = feature_files
end

def load_path(libs)
  ['"%s"' % @libs.join(File::PATH_SEPARATOR)]
end

def quoted_binary(cucumber_bin)
  ['"%s"' % cucumber_bin]
end

def run
  sh(cmd.join(" "))
end

def use_bundler
  @bundler.nil? ? File.exist?("./Gemfile") && Gem.available?("bundler") : @bundler
end