Webpacker vendoring example

Author: eizengan

app/javascript/packs/application.scss

@@ -1,3 +1,3 @@
-@import "../stylesheets/normalize";
+@import "stylesheets/normalize"; // TRICKY: relative to path added in additional_paths
 @import "../stylesheets/global";
 @import "../stylesheets/flair";

config/webpacker.yml

@@ -10,7 +10,7 @@ default: &default
 
   # Additional paths webpack should lookup modules
   # ['app/assets', 'engine/foo/app/assets']
-  additional_paths: []
+  additional_paths: ['vendor/assets']
 
   # Reload manifest.json on all requests so we reload latest compiled packs
   cache_manifest: false