# File lib/bundler/cli.rb, line 530
    def open(name)
      editor = [ENV['BUNDLER_EDITOR'], ENV['VISUAL'], ENV['EDITOR']].find{|e| !e.nil? && !e.empty? }
      if editor
        gem_path = locate_gem(name)
        Dir.chdir(gem_path) do
          command = "#{editor} #{gem_path}"
          success = system(command)
          Bundler.ui.info "Could not run '#{command}'" unless success
        end
      else
        Bundler.ui.info("To open a bundled gem, set $EDITOR or $BUNDLER_EDITOR")
      end
    end