我正在尝试创建一个rails应用程序，我有几个css和js文件要添加到rails app管道。这些是;
<link href="assets/plugins/pace/pace-theme-flash.css" rel="stylesheet" type="text/css" />
<link href="assets/plugins/boostrapv3/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
<link href="assets/plugins/font-awesome/css/font-awesome.css" rel="stylesheet" type="text/css" />
<link href="assets/plugins/jquery-scrollbar/jquery.scrollbar.css" rel="stylesheet" type="text/css" media="screen" />
<link href="assets/plugins/bootstrap-select2/select2.css" rel="stylesheet" type="text/css" media="screen" />
<link href="assets/plugins/switchery/css/switchery.min.css" rel="stylesheet" type="text/css" media="screen" />
<link href="assets/plugins/codrops-stepsform/css/component.css" rel="stylesheet" type="text/css" media="screen" />
<link href="assets/plugins/bootsclertrap-datepicker/css/datepicker3.css" rel="stylesheet" type="text/css" media="screen">
<link href="assets/plugins/summernote/css/summernote.css" rel="stylesheet" type="text/css" media="screen">
<link href="assets/plugins/bootstrap-daterangepicker/daterangepicker-bs3.css" rel="stylesheet" type="text/css" media="screen">
<link href="assets/plugins/bootstrap-timepicker/bootstrap-timepicker.min.css" rel="stylesheet" type="text/css" media="screen">
<link href="assets/plugins/codrops-dialogFx/dialog.css" rel="stylesheet" type="text/css" media="screen" />
<link href="assets/plugins/codrops-dialogFx/dialog-sandra.css" rel="stylesheet" type="text/css" media="screen" />
<link href="pages/css/pages-icons.css" rel="stylesheet" type="text/css">
<link class="main-stylesheet" href="pages/css/themes/simple.css" rel="stylesheet" type="text/css" />
<link class="main-stylesheet" href="assets/css/style.css" rel="stylesheet" type="text/css" />
就像我想要使用的主题一样。但是，如果我只分离这些css js和image，问题是一些css文件正在其目录中使用img文件。例如，select2.css使用b ackground: url('select2.png') right top no-repeat;或bootstrap min（我知道我可以为此添加gem）使用到src:url(../fonts/glyphicons-halflings-regular.eot)的url路径。那么我应该查看css和js文件并搜索他们的家属吗？
我如此坚持以铁轨的方式设计它。谢谢