Temporarily disable Sidekiq ThumbnailWorker

lib/tasks/thumbnail.rake

@@ -4,6 +4,7 @@ namespace :thumbnail do
   task :generate => :environment do
 
     include RepositoriesProxy
+    include Thumbnail::Generate
 
     # Quantity of items fetched on each iteration
     limit = 500
@@ -27,9 +28,11 @@ namespace :thumbnail do
 
         items.each do |item|
           if item.thumbnail.nil?
-            ThumbnailGeneratorWorker.perform_async(item.id)
+            # ThumbnailGeneratorWorker.perform_async(item.id)
+            generate_thumbnail(item.id)
           elsif item.thumbnail.empty?
-            ThumbnailGeneratorWorker.perform_async(item.id)
+            # ThumbnailGeneratorWorker.perform_async(item.id)
+            generate_thumbnail(item.id)
           end
         end