FIX: refactor calling of timed backup deletion

refactor calling of timed backup deletion so it runs regardless of SiteSetting.automatic_backups_enabled value

lib/backup_restore/backuper.rb

@@ -51,13 +51,19 @@ module BackupRestore
       @backup_filename
     ensure
       delete_old
-      delete_prior_to_n_days
       clean_up
       notify_user
       log "Finished!"
       publish_completion
     end
 
+    def delete_prior_to_n_days
+      return if Rails.env.development?
+      store.delete_prior_to_n_days
+    rescue => ex
+      log "Something went wrong while deleting backups prior to n days....", ex
+    end
+
     protected
 
     def ensure_no_operation_is_running
@@ -359,15 +365,6 @@ module BackupRestore
       log "Something went wrong while deleting old backups.", ex
     end
 
-    def delete_prior_to_n_days
-      return if Rails.env.development?
-
-      log "Deleting backups prior to n days..."
-      store.delete_prior_to_n_days
-    rescue => ex
-      log "Something went wrong while deleting backups prior to n days....", ex
-    end
-
     def notify_user
       return if success && @user.id == Discourse::SYSTEM_USER_ID
 

lib/backup_restore/s3_backup_store.rb

@@ -131,9 +131,13 @@ module BackupRestore
     def unsorted_files
       objects = []
 
-      s3_helper.list.each do |obj|
-        objects << create_file_from_object(obj) if obj.key.match?(file_regex)
-      end
+      begin
+        s3_helper.list.each do |obj|
+          objects << create_file_from_object(obj) if obj.key.match?(file_regex)
+        end
+      rescue StandardError
+        NoMethodError
+      end #fired when s3_helper.list is nil - wont respond to .nil?
 
       objects
     rescue Aws::Errors::ServiceError => e