feat: add restarting language server command (#381)

package.json

@@ -104,7 +104,14 @@
         "editor.insertSpaces": true,
         "editor.tabSize": 2
       }
-    }
+    },
+    "commands": [
+      {
+        "title": "Restart Language Server",
+        "category": "Nix IDE",
+        "command": "nix-ide.restartLanguageServer"
+      }
+    ]
   },
   "devDependencies": {
     "@commitlint/cli": "*",

src/client.ts

@@ -79,3 +79,16 @@ export async function activate(context: ExtensionContext): Promise<void> {
 export function deactivate(): Thenable<void> | undefined {
   return client ? client.stop() : undefined;
 }
+
+export async function restart(context: ExtensionContext): Promise<void> {
+  const disposable = window.setStatusBarMessage(
+    "$(loading~spin) Restarting Nix language server",
+  );
+  try {
+    client ? await client.restart() : await activate(context);
+  } catch (error) {
+    client?.error("Failed to restart Nix language server", error, "force");
+  } finally {
+    disposable.dispose();
+  }
+}

src/extension.ts

@@ -19,6 +19,11 @@ import * as client from "./client";
  */
 export async function activate(context: ExtensionContext): Promise<void> {
   if (config.LSPEnabled) {
+    context.subscriptions.push(
+      vscode.commands.registerCommand("nix-ide.restartLanguageServer", () =>
+        client.restart(context),
+      ),
+    );
     await client.activate(context);
   } else {
     await startLinting(context);