sprockets

How can I conditionally require assets using Sprockets? I've googled for solutions before asking and found this discussion in the Sprockets repository - Conditional require The solution discussed there is to use ERB: <% require_asset "#{ActiveScaffold.js_framework}/my_test" %> I've tried it this way: app.js.erb <% if debug == true %> <% require_asset "lib-debug" %> <% else %> <% require_asset "lib-min" %> <%end%> Rakefile def bundle_app(debug) env = Sprockets::Environment.new env.append_path "app/" env.js_compressor = Uglifier.new assets = env.find_asset("app.js.erb") return assets.to_s end

I want, from a helper, to render some variables in a .scss.erb template that makes use of the image-url() sass function: // template.scss.erb #<%= id %> { background-image: image-url('<%= image_file %>'); } So far, the ERB part has been easy: (leveraging this stack overflow answer ) vars_binding = OpenStruct.new( id: 'foo', image_file: 'foo.jpg' ).instance_eval { binding } template = File.read('path/to/template.scss.erb') rendered_sass = ERB.new(template).result(vars_binding) Running that code, sass is now equal to: #foo { background-image: image-url('foo.jpg'); } However, when I next try to

I have following configurations in production.rb # Disable Rails's static asset server (Apache or nginx will already do this) config.serve_static_assets = false # Compress JavaScripts and CSS config.assets.compress = true # Choose the compressors to use config.assets.js_compressor = :uglifier config.assets.css_compressor = :yui # Don't fallback to assets pipeline if a precompiled asset is missed config.assets.compile = true # Generate digests for assets URLs. config.assets.digest = true But when the ruby on rails application on production server I get following error: Error compiling CSS asset

I'm using browserify-rails and I'm trying to get sprockets to preprocess a file that contains a sprockets directive, so that when I require() it using browserify, it will contain the generated JavaScript. The sprockets directive tries to include the output of the gem js-routes , in order to allow me to access the Rails routes from the clientside. This is my setup (within app/assets/javascripts ): system/ rails_routes.js application.js application.js is the main file, and it runs the rest of the application. I would like to be able to do something like var rr = require("./system/rails_routes.js