Don't send new telemetry data unless opted-in

extensions/ql-vscode/src/config.ts

@@ -92,6 +92,15 @@ export const GLOBAL_ENABLE_TELEMETRY = new Setting(
   GLOBAL_TELEMETRY_SETTING,
 );
 
+const ENABLE_NEW_TELEMETRY = new Setting(
+  "enableNewTelemetry",
+  TELEMETRY_SETTING,
+);
+
+export function newTelemetryEnabled(): boolean {
+  return ENABLE_NEW_TELEMETRY.getValue<boolean>();
+}
+
 // Distribution configuration
 const DISTRIBUTION_SETTING = new Setting("cli", ROOT_SETTING);
 export const CUSTOM_CODEQL_PATH_SETTING = new Setting(

extensions/ql-vscode/src/telemetry.ts

@@ -13,6 +13,7 @@ import {
   LOG_TELEMETRY,
   isIntegrationTestMode,
   isCanary,
+  newTelemetryEnabled,
 } from "./config";
 import * as appInsights from "applicationinsights";
 import { extLogger } from "./common";
@@ -172,6 +173,10 @@ export class TelemetryListener extends ConfigListener {
       return;
     }
 
+    if (!newTelemetryEnabled()) {
+      return;
+    }
+
     this.reporter.sendTelemetryEvent(
       "ui-interaction",
       {

extensions/ql-vscode/test/vscode-tests/no-workspace/telemetry.test.ts

@@ -11,6 +11,7 @@ import {
 } from "../../../src/telemetry";
 import { UserCancellationException } from "../../../src/commandRunner";
 import { ENABLE_TELEMETRY } from "../../../src/config";
+import * as Config from "../../../src/config";
 import { createMockExtensionContext } from "./index";
 
 // setting preferences can trigger lots of background activity
@@ -388,6 +389,37 @@ describe("telemetry reporting", () => {
     expect(showInformationMessageSpy).toBeCalledTimes(1);
   });
 
+  describe("when new telementry is not enabled", () => {
+    it("should not send a telementry event", async () => {
+      await telemetryListener.initialize();
+
+      telemetryListener.sendUIInteraction("test");
+
+      expect(sendTelemetryEventSpy).not.toBeCalled();
+    });
+  });
+
+  describe("when new telementry is enabled", () => {
+    beforeEach(async () => {
+      jest.spyOn(Config, "newTelemetryEnabled").mockReturnValue(true);
+    });
+
+    it("should not send a telementry event", async () => {
+      await telemetryListener.initialize();
+
+      telemetryListener.sendUIInteraction("test");
+
+      expect(sendTelemetryEventSpy).toHaveBeenCalledWith(
+        "ui-interaction",
+        {
+          name: "test",
+          isCanary,
+        },
+        {},
+      );
+    });
+  });
+
   async function enableTelemetry(section: string, value: boolean | undefined) {
     await workspace
       .getConfiguration(section)