enable sending telemetry events to tsserver client

Jakefile.js

@@ -127,6 +127,7 @@ var servicesSources = [
 
 var serverCoreSources = [
     "types.d.ts",
+    "shared.ts",
     "utilities.ts",
     "scriptVersionCache.ts",
     "typingsCache.ts",
@@ -149,6 +150,7 @@ var cancellationTokenSources = [
 
 var typingsInstallerSources = [
     "../types.d.ts",
+    "../shared.ts",
     "typingsInstaller.ts",
     "nodeTypingsInstaller.ts"
 ].map(function (f) {

src/harness/unittests/tsserverProjectSystem.ts

@@ -54,8 +54,9 @@ namespace ts.projectSystem {
             throttleLimit: number,
             installTypingHost: server.ServerHost,
             readonly typesRegistry = createMap<void>(),
+            telemetryEnabled?: boolean,
             log?: TI.Log) {
-            super(installTypingHost, globalTypingsCacheLocation, safeList.path, throttleLimit, log);
+            super(installTypingHost, globalTypingsCacheLocation, safeList.path, throttleLimit, telemetryEnabled, log);
         }
 
         safeFileList = safeList.path;

src/harness/unittests/typingsInstaller.ts

@@ -20,12 +20,13 @@ namespace ts.projectSystem {
     }
 
     class Installer extends TestTypingsInstaller {
-        constructor(host: server.ServerHost, p?: InstallerParams, log?: TI.Log) {
+        constructor(host: server.ServerHost, p?: InstallerParams, telemetryEnabled?: boolean, log?: TI.Log) {
             super(
                 (p && p.globalTypingsCacheLocation) || "/a/data",
                 (p && p.throttleLimit) || 5,
                 host,
                 (p && p.typesRegistry),
+                telemetryEnabled,
                 log);
         }
 
@@ -35,15 +36,16 @@ namespace ts.projectSystem {
         }
     }
 
+    function executeCommand(self: Installer, host: TestServerHost, installedTypings: string[], typingFiles: FileOrFolder[], cb: TI.RequestCompletedAction): void {
+        self.addPostExecAction(installedTypings, success => {
+            for (const file of typingFiles) {
+                host.createFileOrFolder(file, /*createParentDirectory*/ true);
+            }
+            cb(success);
+        });
+    }
+
     describe("typingsInstaller", () => {
-        function executeCommand(self: Installer, host: TestServerHost, installedTypings: string[], typingFiles: FileOrFolder[], cb: TI.RequestCompletedAction): void {
-            self.addPostExecAction(installedTypings, success => {
-                for (const file of typingFiles) {
-                    host.createFileOrFolder(file, /*createParentDirectory*/ true);
-                }
-                cb(success);
-            });
-        }
         it("configured projects (typings installed) 1", () => {
             const file1 = {
                 path: "/a/b/app.js",
@@ -782,7 +784,7 @@ namespace ts.projectSystem {
             const host = createServerHost([f1, packageJson]);
             const installer = new (class extends Installer {
                 constructor() {
-                    super(host, { globalTypingsCacheLocation: "/tmp" }, { isEnabled: () => true, writeLine: msg => messages.push(msg) });
+                    super(host, { globalTypingsCacheLocation: "/tmp" }, /*telemetryEnabled*/ false, { isEnabled: () => true, writeLine: msg => messages.push(msg) });
                 }
                 installWorker(requestId: number, args: string[], cwd: string, cb: server.typingsInstaller.RequestCompletedAction) {
                     assert(false, "runCommand should not be invoked");
@@ -795,4 +797,50 @@ namespace ts.projectSystem {
             assert.isTrue(messages.indexOf("Package name '; say ‘Hello from TypeScript!’ #' contains non URI safe characters") > 0, "should find package with invalid name");
         });
     });
+
+    describe("telemetry events", () => {
+        it ("should be received", () => {
+            const f1 = {
+                path: "/a/app.js",
+                content: ""
+            };
+            const package = {
+                path: "/a/package.json",
+                content: JSON.stringify({ dependencies: { "commander": "1.0.0" } })
+            };
+            const cachePath = "/a/cache/";
+            const commander = {
+                path: cachePath + "node_modules/@types/commander/index.d.ts",
+                content: "export let x: number"
+            };
+            const host = createServerHost([f1, package]);
+            let seenTelemetryEvent = false;
+            const installer = new (class extends Installer {
+                constructor() {
+                    super(host, { globalTypingsCacheLocation: cachePath, typesRegistry: createTypesRegistry("commander") }, /*telemetryEnabled*/ true);
+                }
+                installWorker(requestId: number, args: string[], cwd: string, cb: server.typingsInstaller.RequestCompletedAction) {
+                    const installedTypings = ["@types/commander"];
+                    const typingFiles = [commander];
+                    executeCommand(this, host, installedTypings, typingFiles, cb);
+                }
+                sendResponse(response: server.SetTypings | server.InvalidateCachedTypings | server.TypingsInstallEvent) {
+                    if (response.kind === server.EventInstall) {
+                        assert.deepEqual(response.packagesToInstall, ["@types/commander"]);
+                        seenTelemetryEvent = true;
+                        return;
+                    }
+                    super.sendResponse(response);
+                }
+            })();
+            const projectService = createProjectService(host, { typingsInstaller: installer });
+            projectService.openClientFile(f1.path);
+
+            installer.installAll(/*expectedCount*/ 1);
+
+            assert.isTrue(seenTelemetryEvent);
+            checkNumberOfProjects(projectService, { inferredProjects: 1 });
+            checkProjectActualFiles(projectService.inferredProjects[0], [f1.path, commander.path]);
+        });
+    });
 }

src/server/editorServices.ts

@@ -284,11 +284,11 @@ namespace ts.server {
                 return;
             }
             switch (response.kind) {
-                case "set":
+                case ActionSet:
                     this.typingsCache.updateTypingsForProject(response.projectName, response.compilerOptions, response.typingOptions, response.typings);
                     project.updateGraph();
                     break;
-                case "invalidate":
+                case ActionInvalidate:
                     this.typingsCache.invalidateCachedTypingsForProject(project);
                     break;
             }

src/server/protocol.ts

@@ -1940,6 +1940,32 @@ namespace ts.server.protocol {
         childItems?: NavigationTree[];
     }
 
+    export type TelemetryEventName = "telemetry";
+
+    export interface TelemetryEvent extends Event {
+        event: TelemetryEventName;
+        body: TelemetryEventBody;
+    }
+
+    export interface TelemetryEventBody {
+        telemetryEventName: string;
+        payload: any;
+    }
+
+    export type TypingsInstalledTelemetryEventName = "typingsInstalled";
+
+    export interface TypingsInstalledTelemetryEventBody extends TelemetryEventBody {
+        telemetryEventName: TypingsInstalledTelemetryEventName;
+        payload: TypingsInstalledTelemetryEventPayload;
+    }
+
+    export interface TypingsInstalledTelemetryEventPayload {
+        /**
+         * Comma separated list of installed typing packages
+         */
+        installedPackages: string;
+    }
+
     export interface NavBarResponse extends Response {
         body?: NavigationBarItem[];
     }

src/server/server.ts

@@ -1,4 +1,5 @@
 /// <reference types="node" />
+/// <reference path="shared.ts" />
 /// <reference path="session.ts" />
 // used in fs.writeSync
 /* tslint:disable:no-null-keyword */
@@ -17,7 +18,6 @@ namespace ts.server {
         homedir(): string
     } = require("os");
 
-
     function getGlobalTypingsCacheLocation() {
         let basePath: string;
         switch (process.platform) {
@@ -189,8 +189,10 @@ namespace ts.server {
         private installer: NodeChildProcess;
         private socket: NodeSocket;
         private projectService: ProjectService;
+        private telemetrySender: EventSender;
 
         constructor(
+            private readonly telemetryEnabled: boolean,
             private readonly logger: server.Logger,
             private readonly eventPort: number,
             readonly globalTypingsCacheLocation: string,
@@ -202,15 +204,22 @@ namespace ts.server {
             }
         }
 
+        setTelemetrySender(telemetrySender: EventSender) {
+            this.telemetrySender = telemetrySender;
+        }
+
         attach(projectService: ProjectService) {
             this.projectService = projectService;
             if (this.logger.hasLevel(LogLevel.requestTime)) {
                 this.logger.info("Binding...");
             }
 
-            const args: string[] = ["--globalTypingsCacheLocation", this.globalTypingsCacheLocation];
+            const args: string[] = [Arguments.GlobalCacheLocation, this.globalTypingsCacheLocation];
+            if (this.telemetryEnabled) {
+                args.push(Arguments.EnableTelemetry);
+            }
             if (this.logger.loggingEnabled() && this.logger.getLogFileName()) {
-                args.push("--logFile", combinePaths(getDirectoryPath(normalizeSlashes(this.logger.getLogFileName())), `ti-${process.pid}.log`));
+                args.push(Arguments.LogFile, combinePaths(getDirectoryPath(normalizeSlashes(this.logger.getLogFileName())), `ti-${process.pid}.log`));
             }
             const execArgv: string[] = [];
             {
@@ -247,12 +256,25 @@ namespace ts.server {
             this.installer.send(request);
         }
 
-        private handleMessage(response: SetTypings | InvalidateCachedTypings) {
+        private handleMessage(response: SetTypings | InvalidateCachedTypings | TypingsInstallEvent) {
             if (this.logger.hasLevel(LogLevel.verbose)) {
                 this.logger.info(`Received response: ${JSON.stringify(response)}`);
             }
+            if (response.kind === EventInstall) {
+                if (this.telemetrySender) {
+                    const body: protocol.TypingsInstalledTelemetryEventBody = {
+                        telemetryEventName: "typingsInstalled",
+                        payload: {
+                            installedPackages: response.packagesToInstall.join(",")
+                        }
+                    };
+                    const eventName: protocol.TelemetryEventName = "telemetry";
+                    this.telemetrySender.event(body, eventName);
+                }
+                return;
+            }
             this.projectService.updateTypingsForProject(response);
-            if (response.kind == "set" && this.socket) {
+            if (response.kind == ActionSet && this.socket) {
                 this.socket.write(formatMessage({ seq: 0, type: "event", message: response }, this.logger, Buffer.byteLength, this.newLine), "utf8");
             }
         }
@@ -267,18 +289,25 @@ namespace ts.server {
             useSingleInferredProject: boolean,
             disableAutomaticTypingAcquisition: boolean,
             globalTypingsCacheLocation: string,
+            telemetryEnabled: boolean,
             logger: server.Logger) {
-            super(
-                host,
-                cancellationToken,
-                useSingleInferredProject,
-                disableAutomaticTypingAcquisition
-                    ? nullTypingsInstaller
-                    : new NodeTypingsInstaller(logger, installerEventPort, globalTypingsCacheLocation, host.newLine),
-                Buffer.byteLength,
-                process.hrtime,
-                logger,
-                canUseEvents);
+                const typingsInstaller = disableAutomaticTypingAcquisition
+                    ? undefined
+                    : new NodeTypingsInstaller(telemetryEnabled, logger, installerEventPort, globalTypingsCacheLocation, host.newLine);
+
+                super(
+                    host,
+                    cancellationToken,
+                    useSingleInferredProject,
+                    typingsInstaller || nullTypingsInstaller,
+                    Buffer.byteLength,
+                    process.hrtime,
+                    logger,
+                    canUseEvents);
+
+                if (telemetryEnabled && typingsInstaller) {
+                    typingsInstaller.setTelemetrySender(this);
+                }
         }
 
         exit() {
@@ -505,17 +534,17 @@ namespace ts.server {
 
     let eventPort: number;
     {
-        const index = sys.args.indexOf("--eventPort");
-        if (index >= 0 && index < sys.args.length - 1) {
-            const v = parseInt(sys.args[index + 1]);
-            if (!isNaN(v)) {
-                eventPort = v;
-            }
+        const str = findArgument("--eventPort");
+        const v = str && parseInt(str);
+        if (!isNaN(v)) {
+            eventPort = v;
         }
     }
 
-    const useSingleInferredProject = sys.args.indexOf("--useSingleInferredProject") >= 0;
-    const disableAutomaticTypingAcquisition = sys.args.indexOf("--disableAutomaticTypingAcquisition") >= 0;
+    const useSingleInferredProject = hasArgument("--useSingleInferredProject");
+    const disableAutomaticTypingAcquisition = hasArgument("--disableAutomaticTypingAcquisition");
+    const telemetryEnabled = hasArgument(Arguments.EnableTelemetry);
+
     const ioSession = new IOSession(
         sys,
         cancellationToken,
@@ -524,6 +553,7 @@ namespace ts.server {
         useSingleInferredProject,
         disableAutomaticTypingAcquisition,
         getGlobalTypingsCacheLocation(),
+        telemetryEnabled,
         logger);
     process.on("uncaughtException", function (err: Error) {
         ioSession.logError(err, "unknown");

src/server/session.ts

@@ -61,6 +61,10 @@ namespace ts.server {
         project: Project;
     }
 
+    export interface EventSender {
+        event(payload: any, eventName: string): void;
+    }
+
     function allEditsBeforePos(edits: ts.TextChange[], pos: number) {
         for (const edit of edits) {
             if (textSpanEnd(edit.span) >= pos) {
@@ -148,7 +152,7 @@ namespace ts.server {
         return `Content-Length: ${1 + len}\r\n\r\n${json}${newLine}`;
     }
 
-    export class Session {
+    export class Session implements EventSender {
         private readonly gcTimer: GcTimer;
         protected projectService: ProjectService;
         private errorTimer: any; /*NodeJS.Timer | number*/

src/server/shared.ts

@@ -0,0 +1,24 @@
+/// <reference path="types.d.ts" />
+
+namespace ts.server {
+    export const ActionSet: ActionSet = "action::set";
+    export const ActionInvalidate: ActionInvalidate = "action::invalidate";
+    export const EventInstall: EventInstall = "event::install";
+
+    export namespace Arguments {
+        export const GlobalCacheLocation = "--globalTypingsCacheLocation";
+        export const LogFile = "--logFile";
+        export const EnableTelemetry = "--enableTelemetry";
+    }
+
+    export function hasArgument(argumentName: string) {
+        return sys.args.indexOf(argumentName) >= 0;
+    }
+
+    export function findArgument(argumentName: string) {
+        const index = sys.args.indexOf(argumentName);
+        return index >= 0 && index < sys.args.length - 1
+            ? sys.args[index + 1]
+            : undefined;
+    }
+}

src/server/tsconfig.json

@@ -15,6 +15,7 @@
     "files": [
         "../services/shims.ts",
         "../services/utilities.ts",
+        "shared.ts",
         "utilities.ts",
         "scriptVersionCache.ts",
         "scriptInfo.ts",

src/server/tsconfig.library.json

@@ -12,6 +12,7 @@
     "files": [
         "../services/shims.ts",
         "../services/utilities.ts",
+        "shared.ts",
         "utilities.ts",
         "scriptVersionCache.ts",
         "scriptInfo.ts",