Support for removal of old backups automatically via a site setting

lib/export/exporter.rb

@@ -38,6 +38,8 @@ module Export
 
       create_archive
 
+      remove_old
+
       notify_user
     rescue SystemExit
       log "Backup process was cancelled!"
@@ -240,6 +242,11 @@ module Export
       SystemMessage.create(@user, :export_succeeded)
     end
 
+    def remove_old
+      log "Removing old backups..."
+      Backup.remove_old
+    end
+
     def clean_up
       log "Cleaning stuff up..."
       remove_tmp_directory