wasm-language-tools: VS Code ext in update script (#476372)

pkgs/applications/editors/vscode/extensions/gplane.wasm-language-tools/default.nix

@@ -4,6 +4,12 @@
   wasm-language-tools,
 }:
 
+# The update script for the wasm-language-tools package itself updates this
+# package too, so we disable nixpkgs-update for this package to avoid sometimes
+# accidentally updating just this package by itself.
+
+# nixpkgs-update: no auto update
+
 vscode-utils.buildVscodeMarketplaceExtension {
   mktplcRef = {
     publisher = "gplane";

pkgs/by-name/wa/wasm-language-tools/package.nix

@@ -3,7 +3,9 @@
   rustPlatform,
   fetchFromGitHub,
   versionCheckHook,
+  _experimental-update-script-combinators,
   nix-update-script,
+  vscode-extension-update-script,
 }:
 
 rustPlatform.buildRustPackage (finalAttrs: {
@@ -23,7 +25,16 @@ rustPlatform.buildRustPackage (finalAttrs: {
   versionCheckProgram = "${placeholder "out"}/bin/wat_server";
   doInstallCheck = true;
 
-  passthru.updateScript = nix-update-script { };
+  passthru.updateScript = _experimental-update-script-combinators.sequence [
+    (nix-update-script { })
+    (vscode-extension-update-script {
+      attrPath = "vscode-extensions.gplane.wasm-language-tools";
+      extraArgs = [
+        "--override-filename"
+        "pkgs/applications/editors/vscode/extensions/gplane.wasm-language-tools/default.nix"
+      ];
+    })
+  ];
 
   meta = {
     description = "Language server and other tools for WebAssembly";