Did you ever wonder how to enable 3rd party plugins (or so called “frameworks“) within the great compass toolset managed by assetic in your edgy symfony 2.1 project?
(If there is more extensive documentation available concerning assetic + CompassFilter, please stop reading on and let me know!)
If you take a look at the filter class itself (it is CompassFilter in the generic Assetic\Filter namespace), you should recognise several option values that you can use in your application wide config.yml file.
But first you have to install the framework plugin following these instructions.