gns3-gui,gns3-server: use passthru.updateScript

gns3-gui and gns3-server versions should kept in sync.

pkgs/by-name/gn/gns3-gui/package.nix

@@ -2,6 +2,7 @@
   fetchFromGitHub,
   fetchpatch,
   gns3-gui,
+  gns3-server,
   lib,
   python3Packages,
   qt6,
@@ -68,9 +69,12 @@ python3Packages.buildPythonApplication rec {
     export QT_QPA_PLATFORM=offscreen
   '';
 
-  passthru.tests.version = testers.testVersion {
-    package = gns3-gui;
-    command = "${lib.getExe gns3-gui} --version";
+  passthru = {
+    tests.version = testers.testVersion {
+      package = gns3-gui;
+      command = "${lib.getExe gns3-gui} --version";
+    };
+    inherit (gns3-server.passthru) updateScript;
   };
 
   meta = {

pkgs/by-name/gn/gns3-server/package.nix

@@ -9,6 +9,7 @@
   testers,
   util-linux,
   writableTmpDirAsHomeHook,
+  writeScript,
 }:
 
 python3Packages.buildPythonApplication rec {
@@ -84,12 +85,23 @@ python3Packages.buildPythonApplication rec {
     "tests/controller/test_project.py"
   ];
 
-  passthru.tests = {
-    inherit (nixosTests) gns3-server;
-    version = testers.testVersion {
-      package = gns3-server;
-      command = "${lib.getExe gns3-server} --version";
+  passthru = {
+    tests = {
+      inherit (nixosTests) gns3-server;
+      version = testers.testVersion {
+        package = gns3-server;
+        command = "${lib.getExe gns3-server} --version";
+      };
     };
+    updateScript = writeScript "update-gns3" ''
+      #!/usr/bin/env nix-shell
+      #!nix-shell -i bash -p nix-update
+
+      set -eu -o pipefail
+
+      nix-update gns3-gui --version-regex '^v(2\.[\d\.]+)$' --commit
+      nix-update gns3-server --version-regex '^v(2\.[\d\.]+)$' --commit
+    '';
   };
 
   meta = {