Send the useTypescript event in the telemetry usage

packages/core/strapi/lib/Strapi.js

@@ -6,6 +6,7 @@ const { isFunction } = require('lodash/fp');
 const { createLogger } = require('@strapi/logger');
 const { Database } = require('@strapi/database');
 const { createAsyncParallelHook } = require('@strapi/utils').hooks;
+const { isTypeScriptProjectSync } = require('@strapi/typescript-utils');
 
 const loadConfiguration = require('./core/app-configuration');
 
@@ -77,6 +78,7 @@ class Strapi {
 
     // Load the app configuration from the dist directory
     const appConfig = loadConfiguration(this.dirs.dist.root, opts);
+    appConfig.server.useTypescript = isTypeScriptProjectSync(this.dirs.app.root);
 
     // Instanciate the Strapi container
     this.container = createContainer(this);

packages/core/strapi/lib/services/metrics/sender.js

@@ -47,6 +47,7 @@ module.exports = strapi => {
     version: strapi.config.get('info.strapi'),
     strapiVersion: strapi.config.get('info.strapi'),
     projectType: isEE ? 'Enterprise' : 'Community',
+    useTypescript: strapi.config.server.useTypescript,
   };
 
   addPackageJsonStrapiMetadata(anonymous_metadata, strapi);

packages/generators/app/lib/utils/usage.js

@@ -82,6 +82,7 @@ function trackError({ scope, error }) {
     nodeVersion: process.version,
     docker: scope.docker,
     useYarn: scope.useYarn,
+    useTypescript: scope.useTypescript,
   };
 
   try {
@@ -108,6 +109,7 @@ function trackUsage({ event, scope, error }) {
     version: scope.strapiVersion,
     docker: scope.docker,
     useYarn: scope.useYarn.toString(),
+    useTypescript: scope.useTypescript.toString(),
     noRun: (scope.runQuickstartApp !== true).toString(),
   };