compile Sass when using figwheel-main

sass.clj

;; use with deps.edn
;; {:aliases {:sass {:main-opts ["-i sass.clj -m figwheel.main -b dev"]}}}


(require '[clojure.java.shell :as sh]
         '[figwheel.main.watching :as fww])

(println "watching Sass...")

;; change comand and location of sass files as needed
(defn compile-sass [_]
  (sh/sh "sass" "sass/main.sass:resources/public/css/main.css")
  (sh/sh "postcss" "resources/public/css/main.css" "-u" "autoprefixer"
         "-o" "resources/public/css/prefixed-main.css"))

(fww/add-watch!
 :sass
 {:paths ["sass"]
  :filter (fww/suffix-filter #{"sass"})
  :handler (fww/throttle 50 compile-sass)})