feat(cli): [STENCIL-12] Adding Telemetry and CLI features.

src/cli/ionic-config.ts

@@ -26,16 +26,20 @@ export async function readConfig(): Promise<TelemetryConfig> {
   return config;
 }
 
-export async function writeConfig(config: TelemetryConfig): Promise<void> {
+export async function writeConfig(config: TelemetryConfig): Promise<boolean> {
+  let result = false;
   try {
     await getCompilerSystem().createDir(defaultConfigDirectory(), { recursive: true });
     await getCompilerSystem().writeFile(defaultConfig(), JSON.stringify(config));
+    result = true;
   } catch (error) {
     console.error(`Stencil Telemetry: couldn't write configuration file to ${defaultConfig()} - ${error}.`);
   }
+
+  return result;
 }
 
-export async function updateConfig(newOptions: TelemetryConfig): Promise<void> {
+export async function updateConfig(newOptions: TelemetryConfig): Promise<boolean> {
   const config = await readConfig();
-  await writeConfig(Object.assign(config, newOptions));
+  return await writeConfig(Object.assign(config, newOptions));
 }

src/cli/run.ts

@@ -14,16 +14,19 @@ import { taskPrerender } from './task-prerender';
 import { taskServe } from './task-serve';
 import { taskTest } from './task-test';
 import { initializeStencilCLIConfig } from './state/stencil-cli-config';
+import { taskTelemetry } from './task-telemetry';
+import { telemetryAction } from './telemetry/telemetry';
 
 export const run = async (init: CliInitOptions) => {
   const { args, logger, sys } = init;
 
   // Initialize the singleton so we can use this throughout the lifecycle of the CLI.
-  const stencilCLIConfig = initializeStencilCLIConfig({ args, logger, sys});
+  const stencilCLIConfig = initializeStencilCLIConfig({ args, logger, sys });
 
   try {
     const flags = parseFlags(args, sys);
     const task = flags.task;
+
     if (flags.debug || flags.verbose) {
       logger.setLevel('debug');
     }
@@ -43,7 +46,7 @@ export const run = async (init: CliInitOptions) => {
     stencilCLIConfig.flags = flags;
 
     if (task === 'help' || flags.help) {
-      taskHelp(sys, logger);
+      taskHelp();
       return;
     }
 
@@ -79,7 +82,9 @@ export const run = async (init: CliInitOptions) => {
     loadedCompilerLog(sys, logger, flags, coreCompiler);
 
     if (task === 'info') {
-      taskInfo(coreCompiler, sys, logger);
+      await telemetryAction(async () => {
+        await taskInfo(coreCompiler, sys, logger);
+      });
       return;
     }
 
@@ -99,13 +104,17 @@ export const run = async (init: CliInitOptions) => {
       }
     }
 
+    stencilCLIConfig.validatedConfig = validated;
+
     if (isFunction(sys.applyGlobalPatch)) {
       sys.applyGlobalPatch(validated.config.rootDir);
     }
 
     await sys.ensureResources({ rootDir: validated.config.rootDir, logger, dependencies: dependencies as any });
 
-    await runTask(coreCompiler, validated.config, task);
+    await telemetryAction(async () => {
+      await runTask(coreCompiler, validated.config, task);
+    });
   } catch (e) {
     if (!shouldIgnoreError(e)) {
       logger.error(`uncaught cli error: ${e}${logger.getLevel() === 'debug' ? e.stack : ''}`);
@@ -127,15 +136,15 @@ export const runTask = async (coreCompiler: CoreCompiler, config: Config, task:
       await taskDocs(coreCompiler, config);
       break;
 
-    case 'help':
-      taskHelp(config.sys, config.logger);
-      break;
-
     case 'generate':
     case 'g':
       await taskGenerate(coreCompiler, config);
       break;
 
+    case 'help':
+      taskHelp();
+      break;
+
     case 'prerender':
       await taskPrerender(coreCompiler, config);
       break;
@@ -144,6 +153,10 @@ export const runTask = async (coreCompiler: CoreCompiler, config: Config, task:
       await taskServe(config);
       break;
 
+    case 'telemetry':
+      await taskTelemetry();
+      break;
+
     case 'test':
       await taskTest(config);
       break;
@@ -154,7 +167,7 @@ export const runTask = async (coreCompiler: CoreCompiler, config: Config, task:
 
     default:
       config.logger.error(`${config.logger.emoji('❌ ')}Invalid stencil command, please see the options below:`);
-      taskHelp(config.sys, config.logger);
+      taskHelp();
       return config.sys.exit(1);
   }
 };

src/cli/state/stencil-cli-config.ts

@@ -1,4 +1,4 @@
-import type { Logger, CompilerSystem, ConfigFlags } from '../../declarations';
+import type { Logger, CompilerSystem, ConfigFlags, LoadConfigResults } from '../../declarations';
 export type CoreCompiler = typeof import('@stencil/core/compiler');
 
 export interface StencilCLIConfigArgs {
@@ -8,6 +8,7 @@ export interface StencilCLIConfigArgs {
   sys: CompilerSystem;
   flags?: ConfigFlags;
   coreCompiler?: CoreCompiler;
+  validatedConfig?: LoadConfigResults;
 }
 
 export default class StencilCLIConfig {
@@ -19,11 +20,14 @@ export default class StencilCLIConfig {
   private _flags: ConfigFlags | undefined;
   private _task: string | undefined;
   private _coreCompiler: CoreCompiler | undefined;
+  private _validatedConfig: LoadConfigResults | undefined;
 
   private constructor(options: StencilCLIConfigArgs) {
     this._args = options?.args || [];
     this._logger = options?.logger;
     this._sys = options?.sys;
+    this._flags = options?.flags || undefined;
+    this._validatedConfig = options?.validatedConfig || undefined;
   }
 
   public static getInstance(options?: StencilCLIConfigArgs): StencilCLIConfig {
@@ -75,6 +79,13 @@ export default class StencilCLIConfig {
   public set coreCompiler(coreCompiler: CoreCompiler) {
     this._coreCompiler = coreCompiler;
   }
+
+  public get validatedConfig() {
+    return this._validatedConfig;
+  }
+  public set validatedConfig(validatedConfig: LoadConfigResults) {
+    this._validatedConfig = validatedConfig;
+  }
 }
 
 export function initializeStencilCLIConfig(options: StencilCLIConfigArgs): StencilCLIConfig {

src/cli/task-build.ts

@@ -4,6 +4,7 @@ import { runPrerenderTask } from './task-prerender';
 import { startCheckVersion, printCheckVersionResults } from './check-version';
 import { startupCompilerLog } from './logs';
 import { taskWatch } from './task-watch';
+import { telemetryBuildFinishedAction } from './telemetry/telemetry';
 
 export const taskBuild = async (coreCompiler: CoreCompiler, config: Config) => {
   if (config.flags.watch) {
@@ -23,6 +24,8 @@ export const taskBuild = async (coreCompiler: CoreCompiler, config: Config) => {
     const compiler = await coreCompiler.createCompiler(config);
     const results = await compiler.build();
 
+    await telemetryBuildFinishedAction(results);
+
     await compiler.destroy();
 
     if (results.hasError) {

src/cli/task-help.ts

@@ -1,12 +1,16 @@
-import type { CompilerSystem, Logger } from '../declarations';
+import { getCompilerSystem, getLogger } from './state/stencil-cli-config';
+import { taskTelemetry } from './task-telemetry';
 
-export const taskHelp = (sys: CompilerSystem, logger: Logger) => {
-  const p = logger.dim(sys.details.platform === 'windows' ? '>' : '$');
+export const taskHelp = async () => {
+  const logger = getLogger();
+  const sys = getCompilerSystem();
+
+  const prompt = logger.dim(sys.details.platform === 'windows' ? '>' : '$');
 
   console.log(`
   ${logger.bold('Build:')} ${logger.dim('Build components for development or production.')}
 
-    ${p} ${logger.green('stencil build [--dev] [--watch] [--prerender] [--debug]')}
+    ${prompt} ${logger.green('stencil build [--dev] [--watch] [--prerender] [--debug]')}
 
       ${logger.cyan('--dev')} ${logger.dim('.............')} Development build
       ${logger.cyan('--watch')} ${logger.dim('...........')} Rebuild when files update
@@ -21,24 +25,29 @@ export const taskHelp = (sys: CompilerSystem, logger: Logger) => {
 
   ${logger.bold('Test:')} ${logger.dim('Run unit and end-to-end tests.')}
 
-    ${p} ${logger.green('stencil test [--spec] [--e2e]')}
+    ${prompt} ${logger.green('stencil test [--spec] [--e2e]')}
 
       ${logger.cyan('--spec')} ${logger.dim('............')} Run unit tests with Jest
       ${logger.cyan('--e2e')} ${logger.dim('.............')} Run e2e tests with Puppeteer
 
 
   ${logger.bold('Generate:')} ${logger.dim('Bootstrap components.')}
 
-    ${p} ${logger.green('stencil generate')} or ${logger.green('stencil g')}
+    ${prompt} ${logger.green('stencil generate')} or ${logger.green('stencil g')}
 
+`);
 
-  ${logger.bold('Examples:')}
+  await taskTelemetry();
 
-    ${p} ${logger.green('stencil build --dev --watch --serve')}
-    ${p} ${logger.green('stencil build --prerender')}
-    ${p} ${logger.green('stencil test --spec --e2e')}
-    ${p} ${logger.green('stencil generate')}
-    ${p} ${logger.green('stencil g my-component')}
+  console.log(`
+  ${logger.bold('Examples:')}
 
+
+  ${prompt} ${logger.green('stencil build --dev --watch --serve')}
+  ${prompt} ${logger.green('stencil build --prerender')}
+  ${prompt} ${logger.green('stencil test --spec --e2e')}
+  ${prompt} ${logger.green('stencil telemetry on')}
+  ${prompt} ${logger.green('stencil generate')}
+  ${prompt} ${logger.green('stencil g my-component')}
 `);
 };

src/cli/task-telemetry.ts

@@ -0,0 +1,42 @@
+import { getCompilerSystem, getLogger, getStencilCLIConfig } from './state/stencil-cli-config';
+import { checkTelemetry, disableTelemetry, enableTelemetry } from './telemetry/telemetry';
+
+export const taskTelemetry = async () => {
+  const logger = getLogger();
+  const prompt = logger.dim(getCompilerSystem().details.platform === 'windows' ? '>' : '$');
+  const isEnabling = getStencilCLIConfig().flags.args.includes('on');
+  const isDisabling = getStencilCLIConfig().flags.args.includes('off');
+  const INFORMATION = `Opt in or our of telemetry. Information about the data we collect is available on our website: ${logger.bold(
+    'https://stenciljs.com/telemetry',
+  )}`;
+  const THANK_YOU = `Thank you for helping to make Stencil better! 💖`;
+  const ENABLED_MESSAGE = `${logger.green('Enabled')}. ${THANK_YOU}\n\n`;
+  const DISABLED_MESSAGE = `${logger.red('Disabled')}\n\n`;
+  const hasTelemetry = await checkTelemetry();
+
+  if (isEnabling) {
+    const result = await enableTelemetry();
+    result
+      ? console.log(`\n  ${logger.bold('Telemetry is now ') + ENABLED_MESSAGE}`)
+      : console.log(`Something went wrong when enabling Telemetry.`);
+    return;
+  }
+
+  if (isDisabling) {
+    const result = await disableTelemetry();
+    result
+      ? console.log(`\n  ${logger.bold('Telemetry is now ') + DISABLED_MESSAGE}`)
+      : console.log(`Something went wrong when disabling Telemetry.`);
+    return;
+  }
+
+  console.log(`  ${logger.bold('Telemetry:')} ${logger.dim(INFORMATION)}`);
+
+  console.log(`\n  ${logger.bold('Status')}: ${hasTelemetry ? ENABLED_MESSAGE : DISABLED_MESSAGE}`);
+
+  console.log(`    ${prompt} ${logger.green('stencil telemetry [off|on]')}
+
+        ${logger.cyan('off')} ${logger.dim('.............')} Disable sharing anonymous usage data
+        ${logger.cyan('on')} ${logger.dim('..............')} Enable sharing anonymous usage data
+  `);
+};

src/cli/telemetry/helpers.ts

@@ -51,3 +51,11 @@ export async function readJson(path: string) {
   const file = await getCompilerSystem().readFile(path);
   return !!file && JSON.parse(file);
 }
+
+export function hasDebug() {
+  return getStencilCLIConfig().flags.debug;
+}
+
+export function hasVerbose() {
+  return getStencilCLIConfig().flags.verbose && hasDebug();
+}

src/cli/telemetry/shouldTrack.ts

@@ -0,0 +1,11 @@
+import { isInteractive } from './helpers';
+import { checkTelemetry } from './telemetry';
+
+/**
+ * Used to determine if tracking should occur.
+ * @param ci whether or not the process is running in a Continuous Integration (CI) environment
+ * @returns true if telemetry should be sent, false otherwise
+ */
+export async function shouldTrack(ci?: boolean) {
+  return !ci && isInteractive() && (await checkTelemetry());
+}