[bug] unable to build homepage custom stylesheet

CHANGELOG.md

@@ -1,5 +1,7 @@
 # Changelog Fab-manager
 
+- Fix a bug: unable to build homepage custom stylesheet
+
 ## v4.6.3 2020 October 28
 
 - Enabled Typescript

Gemfile

@@ -136,3 +136,6 @@ gem 'repost'
 gem 'icalendar'
 
 gem 'tzinfo-data'
+
+# compilation of dynamic stylesheets (home page & theme)
+gem 'sassc'

Gemfile.lock

@@ -336,6 +336,8 @@ GEM
       rubyzip (>= 1.3.0)
     rubyzip (1.3.0)
     safe_yaml (1.0.5)
+    sassc (2.2.1)
+      ffi (~> 1.9)
     seed_dump (3.3.1)
       activerecord (>= 4)
       activesupport (>= 4)
@@ -476,6 +478,7 @@ DEPENDENCIES
   rubocop (~> 0.61.1)
   rubyXL
   rubyzip (>= 1.3.0)
+  sassc
   seed_dump
   sha3
   sidekiq (>= 6.0.7)

app/models/stylesheet.rb

@@ -149,7 +149,7 @@ class Stylesheet < ApplicationRecord
   end
 
   def self.home_page_css
-    engine = Sass::Engine.new(home_style, syntax: :scss)
+    engine = SassC::Engine.new(home_style, style: :compressed)
     engine.render.presence || '.home-page {}'
   end
 end