AssetSnack for Sinatra

A lean asset compiler for Sinatra developed specifically for Coffeescript and SASS. It stitches all assets for a route into a single file, no uglification, no minification (configure your server to use Gzip), just lean, fast compilation.

If you use Bundler, add it to your Gemfile.

gem install sinatra-asset-snack

Require and register the gem then configure your routes.

require 'sinatra/asset_snack'

class App < Sinatra::Base
  register Sinatra::AssetSnack
  asset_map '/javascript/application.js', ['assets/js/**/*.js', 'assets/js/**/*.coffee']
  asset_map '/stylesheets/application.css', ['assets/stylesheets/**/*.css', 'assets/stylesheets/**/*.scss']
end

In your view / layout reference your assets using the relevant tag

<link rel="stylesheet" href="/stylesheets/application.css" type="text/css" />
<script src="/javascript/application.js" type="text/javascript"></script>

If you want - use the helpers to add cache busting

<link rel="stylesheet" href="<%= nocache '/stylesheets/application.css' %>" type="text/css" />
<script src="<%= nocache '/javascript/application.js' %>" type="text/javascript"></script>

Configuration options may be passed into each compiler. For example

Sinatra::AssetSnack.configuration.compilers[:coffee_script] = {bare: true}
Sinatra::AssetSnack.configuration.compilers[:sass] = {syntax: :scss}

See each compiler's repo for the list of configuration options

sinatra

coffee-script

sass

To precompile your assets, you must set a constant APP_FILE to the source file which defines your Sinatra app.

APP_FILE = "lib/app/app.rb"
require 'sinatra/asset_snack/rake'

This defines the rake task assetsnack:build which will precompile your assets.