From 5ef1317093fd68aa59ac331cbdea9c8ba3978d48 Mon Sep 17 00:00:00 2001
From: Jernej Kos <jernej@kos.mx>
Date: Wed, 30 Mar 2022 09:33:00 +0200
Subject: [PATCH] go/upgrade: Add empty upgrade handler

---
 go/upgrade/migrations/empty.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 go/upgrade/migrations/empty.go

diff --git a/go/upgrade/migrations/empty.go b/go/upgrade/migrations/empty.go
new file mode 100644
index 00000000000..b7e7eeec129
--- /dev/null
+++ b/go/upgrade/migrations/empty.go
@@ -0,0 +1,24 @@
+package migrations
+
+const (
+	// EmptyHandler is the name of the upgrade handler that doesn't perform any updates.
+	EmptyHandler = "empty"
+)
+
+var _ Handler = (*emptyHandler)(nil)
+
+type emptyHandler struct{}
+
+func (th *emptyHandler) StartupUpgrade(ctx *Context) error {
+	// Nothing to do.
+	return nil
+}
+
+func (th *emptyHandler) ConsensusUpgrade(ctx *Context, privateCtx interface{}) error {
+	// Nothing to do.
+	return nil
+}
+
+func init() {
+	Register(EmptyHandler, &emptyHandler{})
+}