feat(wrangler): Capture Workers with static assets in the telemetry data (#7604)

* feat(wrangler): Capture Workers with static assets in the telemetry data

* add changeset

Author: CarmenPopoviciu

.changeset/long-houses-mate.md

@@ -0,0 +1,11 @@
+---
+"wrangler": minor
+---
+
+feat: Capture Workers with static assets in the telemetry data
+
+We want to measure accurately what this number of Workers + Assets projects running in remote mode is, as this number will be a very helpful data point down the road, when more decisions around remote mode will have to be taken.
+
+These changes add this kind of insight to our telemetry data, by capturing whether the command running is in the context of a Workers + Assets project.
+
+N.B. With these changes in place we will be capturing the Workers + Assets context for all commands, not just wrangler dev --remote.

packages/wrangler/src/__tests__/metrics.test.ts

@@ -1,3 +1,4 @@
+import * as fs from "node:fs";
 import { http, HttpResponse } from "msw";
 import { vi } from "vitest";
 import { CI } from "../is-ci";
@@ -189,6 +190,7 @@ describe("metrics", () => {
 				isPagesCI: false,
 				isWorkersCI: false,
 				isInteractive: true,
+				hasAssets: false,
 				argsUsed: [],
 				argsCombination: "",
 				command: "wrangler docs",
@@ -359,6 +361,58 @@ describe("metrics", () => {
 				expect(std.debug).toContain('isWorkersCI":true');
 			});
 
+			it("should capture Workers + Assets projects", async () => {
+				writeWranglerConfig({ assets: { directory: "./public" } });
+
+				// set up empty static assets directory
+				fs.mkdirSync("./public");
+
+				const requests = mockMetricRequest();
+
+				await runWrangler("docs arg");
+				expect(requests.count).toBe(2);
+
+				// command started
+				const expectedStartReq = {
+					deviceId: "f82b1f46-eb7b-4154-aa9f-ce95f23b2288",
+					event: "wrangler command started",
+					timestamp: 1733961600000,
+					properties: {
+						amplitude_session_id: 1733961600000,
+						amplitude_event_id: 0,
+						...{ ...reused, hasAssets: true },
+					},
+				};
+				expect(std.debug).toContain(
+					`Posting data ${JSON.stringify(expectedStartReq)}`
+				);
+
+				// command completed
+				const expectedCompleteReq = {
+					deviceId: "f82b1f46-eb7b-4154-aa9f-ce95f23b2288",
+					event: "wrangler command completed",
+					timestamp: 1733961606000,
+					properties: {
+						amplitude_session_id: 1733961600000,
+						amplitude_event_id: 1,
+						...{ ...reused, hasAssets: true },
+						durationMs: 6000,
+						durationSeconds: 6,
+						durationMinutes: 0.1,
+					},
+				};
+				expect(std.debug).toContain(
+					`Posting data ${JSON.stringify(expectedCompleteReq)}`
+				);
+				expect(std.out).toMatchInlineSnapshot(`
+					"
+					Cloudflare collects anonymous telemetry about your usage of Wrangler. Learn more at https://github.com/cloudflare/workers-sdk/tree/main/packages/wrangler/telemetry.md
+					Opening a link in your default browser: FAKE_DOCS_URL:{\\"params\\":\\"query=arg&hitsPerPage=1&getRankingInfo=0\\"}"
+				`);
+				expect(std.warn).toMatchInlineSnapshot(`""`);
+				expect(std.err).toMatchInlineSnapshot(`""`);
+			});
+
 			it("should not send arguments with wrangler login", async () => {
 				const requests = mockMetricRequest();
 

packages/wrangler/src/index.ts

@@ -1155,6 +1155,7 @@ export async function main(argv: string[]): Promise<void> {
 			const { rawConfig, configPath } = experimental_readRawConfig(args);
 			dispatcher = getMetricsDispatcher({
 				sendMetrics: rawConfig.send_metrics,
+				hasAssets: !!rawConfig.assets?.directory,
 				configPath,
 			});
 		} catch (e) {

packages/wrangler/src/metrics/metrics-config.ts

@@ -23,6 +23,10 @@ export interface MetricsConfigOptions {
 	 * Otherwise, infer the enabled value from the user configuration.
 	 */
 	sendMetrics?: boolean;
+	/**
+	 * Captures whether this is a Worker with static assets
+	 */
+	hasAssets?: boolean;
 	/**
 	 * Path to wrangler configuration file, if it exists. Used for configFileType property
 	 */

packages/wrangler/src/metrics/metrics-dispatcher.ts

@@ -111,6 +111,7 @@ export function getMetricsDispatcher(options: MetricsConfigOptions) {
 					isPagesCI: isPagesCI(),
 					isWorkersCI: isWorkersCI(),
 					isInteractive: isInteractive(),
+					hasAssets: options.hasAssets ?? false,
 					argsUsed,
 					argsCombination,
 				};

packages/wrangler/src/metrics/types.ts

@@ -52,6 +52,10 @@ export type CommonEventProperties = {
 	 * Whether the Wrangler client is running in an interactive instance
 	 */
 	isInteractive: boolean;
+	/**
+	 * Whether this is a Worker with static assets
+	 */
+	hasAssets: boolean;
 	/**
 	 * A list of normalised argument names/flags that were passed in or are set by default.
 	 * Excludes boolean flags set to false.