Allows one to minify JS and CSS within a Razor View in Nancy. See usage at the bottom of the source.

OptimizationExtensions.cs

namespace Nancy.ViewEngines.Razor
{
	using System;
	using Microsoft.Ajax.Utilities;
	using SquishIt.Framework;
	using SquishIt.Framework.Utilities;

	public static class OptimizationExtensions
	{
		public static IHtmlString JsMinify<TModel>(this HtmlHelpers<TModel> helpers, Func<object, object> markup)
		{
			if (helpers == null || markup == null)
			{
				return NonEncodedHtmlString.Empty;
			}

			var sourceJs = (markup.DynamicInvoke(helpers.RenderContext) ?? String.Empty).ToString();

			if (new DebugStatusReader().IsDebuggingEnabled())
			{
				return new NonEncodedHtmlString(sourceJs);
			}

			var minifier = new Minifier();

			var minifiedJs = minifier.MinifyJavaScript(sourceJs, new CodeSettings
			{
				EvalTreatment = EvalTreatment.MakeImmediateSafe,
				PreserveImportantComments = false
			});

			return new NonEncodedHtmlString(minifiedJs);
		}

		public static IHtmlString CssMinify<TModel>(this HtmlHelpers<TModel> helpers, Func<object, object> markup)
		{
			if (helpers == null || markup == null)
			{
				return NonEncodedHtmlString.Empty;
			}

			var sourceCss = (markup.DynamicInvoke(helpers.RenderContext) ?? String.Empty).ToString();

			if (new DebugStatusReader().IsDebuggingEnabled())
			{
				return new NonEncodedHtmlString(sourceCss);
			}

			var minifier = new Minifier();

			var minifiedCss = minifier.MinifyStyleSheet(sourceCss, new CssSettings
			{
				CommentMode = CssComment.None
			});

			return new NonEncodedHtmlString(minifiedCss);
		}
	}
}
/*
 
<script type="text/javascript">@(Html.JsMinify(@<text>
	//  JS code here
</text>))</script>
 
or
 
<style type="text/css">@(Html.CssMinify(@<text>
	/*  CSS rules here * /
</text>))</style>
 
*/

See the MVC version here: https://gist.github.com/MrScruffy04/6908211