We've been using the Ruby version of the sass compiler with compass and grunt-contrib-sass for quite a while but it's very slow.
Since libsass is faster than its Ruby pendant, we replaced grunt-contrib-sass with grunt-sass.
Unfortunately, the docs for grunt-contrib-compass say:
This task requires you to have Ruby, Sass, and Compass >=1.0.1 installed
Also, when I run our build, I get:
Running "sass:dist" (sass) task
>> Error: File to import not found or unreadable: compass
>> Parent style sheet: src/assets/sass/catalog.scss
>> on line 15 of src/assets/sass/catalog.scss
>> >> @import "compass";
>> ^
Warning: Use --force to continue.
So, if grunt-contrib-compass is not compatible with grunt-sass how can I use compass with libsass then?
Found the solution. It was as easy as installing compass-importer:
$ npm install --save-dev compass-importer
And then set importer: compass
in Gruntfile.js