Add Gitlab version and revision to export

lib/gitlab/import_export.rb

@@ -50,6 +50,14 @@ module Gitlab
       'VERSION'
     end
 
+    def gitlab_version_filename
+      'GITLAB_VERSION'
+    end
+
+    def gitlab_revision_filename
+      'GITLAB_REVISION'
+    end
+
     def export_filename(exportable:)
       basename = "#{Time.now.strftime('%Y-%m-%d_%H-%M-%3N')}_#{exportable.full_path.tr('/', '_')}"
 

lib/gitlab/import_export/version_saver.rb

@@ -13,6 +13,8 @@ module Gitlab
         mkdir_p(@shared.export_path)
 
         File.write(version_file, Gitlab::ImportExport.version, mode: 'w')
+        File.write(gitlab_version_file, Gitlab::VERSION, mode: 'w')
+        File.write(gitlab_revision_file, Gitlab.revision, mode: 'w')
       rescue => e
         @shared.error(e)
         false
@@ -20,6 +22,14 @@ module Gitlab
 
       private
 
+      def gitlab_version_file
+        File.join(@shared.export_path, Gitlab::ImportExport.gitlab_version_filename)
+      end
+
+      def gitlab_revision_file
+        File.join(@shared.export_path, Gitlab::ImportExport.gitlab_revision_filename)
+      end
+
       def version_file
         File.join(@shared.export_path, Gitlab::ImportExport.version_filename)
       end