st: add updateScript

pkgs/applications/terminal-emulators/st/default.nix

@@ -12,6 +12,8 @@
 , patches ? [ ]
 , extraLibs ? [ ]
 , nixosTests
+# update script dependencies
+, gitUpdater
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -60,7 +62,12 @@ stdenv.mkDerivation (finalAttrs: {
 
   installFlags = [ "PREFIX=$(out)" ];
 
-  passthru.tests.test = nixosTests.terminal-emulators.st;
+  passthru = {
+    tests.test = nixosTests.terminal-emulators.st;
+    updateScript = gitUpdater {
+      url = "git://git.suckless.org/st";
+    };
+  };
 
   meta = with lib; {
     homepage = "https://st.suckless.org/";