From 51d2bb36ceec7386370f1999952b04bec291f312 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Wed, 29 Jan 2020 23:20:37 +0100
Subject: [PATCH] Save/Use state-version with route templates

Currently using Ardour-5 route templates (state version "3002")
with Ardour6 fails. As opposed to session-templates, Route
templates were not versioned.

This ensures future compatibility (and may allow to interpret
unversioned templates as "3002")
---
 libs/ardour/route.cc | 4 ++++
 libs/ardour/track.cc | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index 0b67528ac9..0b684f560c 100644
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -2494,6 +2494,7 @@ Route::state (bool save_template)
 
 		std::string modified_with = string_compose ("%1 %2", PROGRAM_NAME, revision);
 		child->set_property("modified-with", modified_with);
+		node->set_property("version", CURRENT_SESSION_FILE_VERSION);
 	}
 
 	node->set_property (X_("id"), id ());
@@ -2589,6 +2590,9 @@ Route::state (bool save_template)
 int
 Route::set_state (const XMLNode& node, int version)
 {
+	/* when loading a template, use the version of the Route (if available) */
+	node.get_property (X_("version"), version);
+
 	if (version < 3000) {
 		return set_state_2X (node, version);
 	}
diff --git a/libs/ardour/track.cc b/libs/ardour/track.cc
index a4c26a7ffb..482c17c270 100644
--- a/libs/ardour/track.cc
+++ b/libs/ardour/track.cc
@@ -177,6 +177,8 @@ Track::set_state (const XMLNode& node, int version)
 		return -1;
 	}
 
+	node.get_property (X_("version"), version);
+
 	if (version >= 3000 && version < 6000) {
 		if (XMLNode* ds_node = find_named_node (node, "Diskstream")) {
 			std::string name;