public static MvcHtmlString RenderCssBundle(this HtmlHelper html, string bundlePath, BundleOptions options = BundleOptions.Minified, string media = null)
{
if (string.IsNullOrEmpty(bundlePath))
{
return(MvcHtmlString.Empty);
}
if (!CachePaths())
{
BundleCache.SafeClear();
}
return(BundleCache.GetOrAdd(bundlePath, str =>
{
var filePath = MapPath(bundlePath);
var baseUrl = VirtualPathUtility.GetDirectory(bundlePath);
if (options == BundleOptions.Combined)
{
return html.Css(bundlePath.Replace(".bundle", ""), media, options);
}
if (options == BundleOptions.MinifiedAndCombined)
{
return html.Css(bundlePath.Replace(".css.bundle", ".min.css"), media, options);
}
var cssFiles = File.ReadAllLines(filePath);
var styles = new StringBuilder();
foreach (var file in cssFiles)
{
if (file.StartsWith("#"))
{
continue;
}
var cssFile = file.Trim()
.Replace(".less", ".css")
.Replace(".sass", ".css")
.Replace(".scss", ".css")
.Replace(".styl", ".css");
var cssSrc = Path.Combine(baseUrl, cssFile);
styles.AppendLine(
html.Css(cssSrc, media, options).ToString()
);
}
return styles.ToString().ToMvcHtmlString();
}));
}