1 files changed, 59 insertions, 0 deletions
diff --git a/app/models/bulk_imports/file_transfer/base_config.rb b/app/models/bulk_imports/file_transfer/base_config.rb
new file mode 100644
index 00000000000..bb04e84ad72
--- /dev/null
+++ b/app/models/bulk_imports/file_transfer/base_config.rb
@@ -0,0 +1,59 @@
+# frozen_string_literal: true
+
+module BulkImports
+  module FileTransfer
+    class BaseConfig
+      include Gitlab::Utils::StrongMemoize
+
+      def initialize(portable)
+        @portable = portable
+      end
+
+      def portable_tree
+        attributes_finder.find_root(portable_class_sym)
+      end
+
+      def export_path
+        strong_memoize(:export_path) do
+          relative_path = File.join(base_export_path, SecureRandom.hex)
+
+          ::Gitlab::ImportExport.export_path(relative_path: relative_path)
+        end
+      end
+
+      def portable_relations
+        import_export_config.dig(:tree, portable_class_sym).keys.map(&:to_s)
+      end
+
+      private
+
+      attr_reader :portable
+
+      def attributes_finder
+        strong_memoize(:attributes_finder) do
+          ::Gitlab::ImportExport::AttributesFinder.new(config: import_export_config)
+        end
+      end
+
+      def import_export_config
+        ::Gitlab::ImportExport::Config.new(config: import_export_yaml).to_h
+      end
+
+      def portable_class
+        @portable_class ||= portable.class
+      end
+
+      def portable_class_sym
+        @portable_class_sym ||= portable_class.to_s.demodulize.underscore.to_sym
+      end
+
+      def import_export_yaml
+        raise NotImplementedError
+      end
+
+      def base_export_path
+        raise NotImplementedError
+      end
+    end
+  end
+end