feat(ide): add telemetry tracking to VSCode extension

.github/workflows/build-test.yml

@@ -8,6 +8,7 @@ on:
 
 env:
     TELEMETRY_TRACKING_TOKEN: ${{ secrets.TELEMETRY_TRACKING_TOKEN }}
+    VSCODE_TELEMETRY_TRACKING_TOKEN: ${{ secrets.VSCODE_TELEMETRY_TRACKING_TOKEN }}
     DO_NOT_TRACK: '1'
 
 permissions:

packages/ide/vscode/eslint.config.mjs

@@ -1,4 +1,11 @@
 import config from '@zenstackhq/eslint-config/base.js';
 
 /** @type {import("eslint").Linter.Config} */
-export default config;
+export default [
+    ...config,
+    {
+        rules: {
+            'no-prototype-builtins': 'off',
+        },
+    },
+];

packages/ide/vscode/package.json

@@ -10,7 +10,7 @@
         "url": "https://github.com/zenstackhq/zenstack"
     },
     "scripts": {
-        "build": "tsc --noEmit && tsup",
+        "build": "tsc --noEmit && tsup && tsx scripts/post-build.ts",
         "watch": "tsup --watch",
         "lint": "eslint src --ext ts",
         "vscode:publish": "pnpm build && vsce publish --no-dependencies --follow-symlinks",
@@ -33,13 +33,16 @@
     "dependencies": {
         "@zenstackhq/language": "workspace:*",
         "langium": "catalog:",
+        "mixpanel": "^0.18.0",
+        "uuid": "^11.1.0",
         "vscode-languageclient": "^9.0.1",
         "vscode-languageserver": "^9.0.1"
     },
     "devDependencies": {
         "@types/vscode": "^1.90.0",
         "@zenstackhq/eslint-config": "workspace:*",
-        "@zenstackhq/typescript-config": "workspace:*"
+        "@zenstackhq/typescript-config": "workspace:*",
+        "dotenv": "^17.2.3"
     },
     "files": [
         "dist",

packages/ide/vscode/scripts/post-build.ts

@@ -0,0 +1,16 @@
+import dotenv from 'dotenv';
+import fs from 'node:fs';
+
+dotenv.config({ path: './.env.local' });
+dotenv.config({ path: './.env' });
+
+const telemetryToken = process.env.VSCODE_TELEMETRY_TRACKING_TOKEN;
+if (!telemetryToken) {
+    console.error('Error: VSCODE_TELEMETRY_TRACKING_TOKEN environment variable is not set');
+    process.exit(1);
+}
+const file = 'dist/extension.js';
+let content = fs.readFileSync(file, 'utf-8');
+content = content.replace('<VSCODE_TELEMETRY_TRACKING_TOKEN>', telemetryToken);
+fs.writeFileSync(file, content, 'utf-8');
+console.log('Telemetry token injected into dist/extension.js');

packages/ide/vscode/src/extension/machine-id-utils.ts

@@ -0,0 +1,73 @@
+// modified from https://github.com/automation-stack/node-machine-id
+
+import { execSync } from 'child_process';
+import { createHash } from 'crypto';
+import { v4 as uuid } from 'uuid';
+
+const { platform } = process;
+const win32RegBinPath = {
+    native: '%windir%\\System32',
+    mixed: '%windir%\\sysnative\\cmd.exe /c %windir%\\System32',
+};
+const guid = {
+    darwin: 'ioreg -rd1 -c IOPlatformExpertDevice',
+    win32:
+        `${win32RegBinPath[isWindowsProcessMixedOrNativeArchitecture()]}\\REG.exe ` +
+        'QUERY HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography ' +
+        '/v MachineGuid',
+    linux: '( cat /var/lib/dbus/machine-id /etc/machine-id 2> /dev/null || hostname 2> /dev/null) | head -n 1 || :',
+    freebsd: 'kenv -q smbios.system.uuid || sysctl -n kern.hostuuid',
+};
+
+function isWindowsProcessMixedOrNativeArchitecture() {
+    if (process.arch === 'ia32' && process.env.hasOwnProperty('PROCESSOR_ARCHITEW6432')) {
+        return 'mixed';
+    }
+    return 'native';
+}
+
+function hash(guid: string): string {
+    return createHash('sha256').update(guid).digest('hex');
+}
+
+function expose(result: string): string {
+    switch (platform) {
+        case 'darwin':
+            return result
+                .split('IOPlatformUUID')[1]!
+                .split('\n')[0]!
+                .replace(/=|\s+|"/gi, '')
+                .toLowerCase();
+        case 'win32':
+            return result
+                .toString()
+                .split('REG_SZ')[1]!
+                .replace(/\r+|\n+|\s+/gi, '')
+                .toLowerCase();
+        case 'linux':
+            return result
+                .toString()
+                .replace(/\r+|\n+|\s+/gi, '')
+                .toLowerCase();
+        case 'freebsd':
+            return result
+                .toString()
+                .replace(/\r+|\n+|\s+/gi, '')
+                .toLowerCase();
+        default:
+            throw new Error(`Unsupported platform: ${process.platform}`);
+    }
+}
+
+export function getMachineId() {
+    if (!(platform in guid)) {
+        return uuid();
+    }
+    try {
+        const value = execSync(guid[platform as keyof typeof guid]);
+        const id = expose(value.toString());
+        return hash(id);
+    } catch {
+        return uuid();
+    }
+}

packages/ide/vscode/src/extension/main.ts

@@ -2,12 +2,14 @@ import * as path from 'node:path';
 import type * as vscode from 'vscode';
 import type { LanguageClientOptions, ServerOptions } from 'vscode-languageclient/node.js';
 import { LanguageClient, TransportKind } from 'vscode-languageclient/node.js';
+import telemetry from './vscode-telemetry';
 
 let client: LanguageClient;
 
 // This function is called when the extension is activated.
 export function activate(context: vscode.ExtensionContext): void {
     client = startLanguageClient(context);
+    telemetry.track('extension:activate');
 }
 
 // This function is called when the extension is deactivated.

packages/ide/vscode/src/extension/vscode-telemetry.ts

@@ -0,0 +1,62 @@
+import { init } from 'mixpanel';
+import type { Mixpanel } from 'mixpanel';
+import * as os from 'os';
+import * as vscode from 'vscode';
+import { getMachineId } from './machine-id-utils';
+import { v5 as uuidv5 } from 'uuid';
+import { version as extensionVersion } from '../../package.json';
+
+export const VSCODE_TELEMETRY_TRACKING_TOKEN = '<VSCODE_TELEMETRY_TRACKING_TOKEN>';
+
+export type TelemetryEvents = 'extension:activate' | 'extension:zmodel-preview' | 'extension:zmodel-save';
+
+export class VSCodeTelemetry {
+    private readonly mixpanel: Mixpanel | undefined;
+    private readonly deviceId = this.getDeviceId();
+    private readonly _os_type = os.type();
+    private readonly _os_release = os.release();
+    private readonly _os_arch = os.arch();
+    private readonly _os_version = os.version();
+    private readonly _os_platform = os.platform();
+    private readonly vscodeAppName = vscode.env.appName;
+    private readonly vscodeVersion = vscode.version;
+    private readonly vscodeAppHost = vscode.env.appHost;
+
+    constructor() {
+        if (vscode.env.isTelemetryEnabled) {
+            this.mixpanel = init(VSCODE_TELEMETRY_TRACKING_TOKEN, {
+                geolocate: true,
+            });
+        }
+    }
+
+    private getDeviceId() {
+        const hostId = getMachineId();
+        // namespace UUID for generating UUIDv5 from DNS 'zenstack.dev'
+        return uuidv5(hostId, '133cac15-3efb-50fa-b5fc-4b90e441e563');
+    }
+
+    track(event: TelemetryEvents, properties: Record<string, unknown> = {}) {
+        if (this.mixpanel) {
+            const payload = {
+                distinct_id: this.deviceId,
+                time: new Date(),
+                $os: this._os_type,
+                osType: this._os_type,
+                osRelease: this._os_release,
+                osPlatform: this._os_platform,
+                osArch: this._os_arch,
+                osVersion: this._os_version,
+                nodeVersion: process.version,
+                vscodeAppName: this.vscodeAppName,
+                vscodeVersion: this.vscodeVersion,
+                vscodeAppHost: this.vscodeAppHost,
+                extensionVersion,
+                ...properties,
+            };
+            this.mixpanel.track(event, payload);
+        }
+    }
+}
+
+export default new VSCodeTelemetry();