Exclude individual css from assets pipeline

When in the need to remove certain CSS files from your application.css’s
require_tree:

# application.css
/*
*= require_self
*= require_tree .
*/

Use sprocket’s stub
directive
:

# application.css
/*
*= require_self
*= require_tree .
*= stub whatevercssyoudontwanttoload[.css]
*/

Note: Best practice of course is to add individual stylesheets into your application.css
rather than a full on require_tree .
. But in the event that you require to
still use require_tree, the above may help you.