This package compiles Sass/Scss into CSS by hooking into the LigerShark.WebOptimizer pipeline.
Add the NuGet package LigerShark.WebOptimizer.Sass to any ASP.NET Core project supporting .NET Standard 2.0 or higher.
> dotnet add package LigerShark.WebOptimizer.Sass
Since the original library is written in JavaScript, you will need a JS engine to run it. As a JS engine is used the JavaScript Engine Switcher library. First of all, you need to install the JavaScriptEngineSwitcher.Extensions.MsDependencyInjection package which makes registration of JS engines more convenient. Then you need to install one of the NuGet packages containing a JS engine provider:
After installing the packages, you will need to register the default JS engine.
Master is being updated for ASP.NET Core 3.0 For ASP.NET Core 2.x, use the 2.0 branch.
Here's an example of how to compile a.scss and b.scss from inside the wwwroot folder and bundle them into a single .css file called /all.css:
In Startup.cs, modify the ConfigureServices method:
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc();
// Add JavaScriptEngineSwitcher services to the services container.
services.AddJsEngineSwitcher(options =>
{
options.AllowCurrentProperty = false;
options.DefaultEngineName = V8JsEngine.EngineName;
})
.AddV8()
;
services.AddWebOptimizer(pipeline =>
{
pipeline.AddScssBundle("/all.css", "a.scss", "b.scss");
});
}
...and add app.UseWebOptimizer() to the Configure method anywhere before app.UseStaticFiles, like so:
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseWebOptimizer();
app.UseStaticFiles();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
}
Now the path http://domain/all.css will return a compiled, bundled and minified CSS document based on the two source files.
You can also reference any .scss files directly in the browser (http://domain/a.scss) and a compiled and minified CSS document will be served. To set that up, do this:
services.AddWebOptimizer(pipeline =>
{
pipeline.CompileScssFiles();
});
Or if you just want to limit what .scss files will be compiled, do this:
services.AddWebOptimizer(pipeline =>
{
pipeline.CompileScssFiles("/path/file1.scss", "/path/file2.scss");
});
In _ViewImports.cshtml register the TagHelpers by adding @addTagHelper *, WebOptimizer.Core to the file. It may look something like this:
Note
The TagHelpers are required in order for cache-busting version strings to be appended to the url. The ASP.NET LinkTagHelper attribute asp-append-version="true" is ignored.
@addTagHelper *, WebOptimizer.Core
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
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