Telemetry: Measure docs usage

code/lib/core-server/src/build-static.ts

@@ -32,6 +32,7 @@ import { getBuilders } from './utils/get-builders';
 import { extractStoriesJson, convertToIndexV3 } from './utils/stories-json';
 import { extractStorybookMetadata } from './utils/metadata';
 import { StoryIndexGenerator } from './utils/StoryIndexGenerator';
+import { summarizeIndex } from './utils/summarizeIndex';
 
 export async function buildStaticStandalone(
   options: CLIOptions & LoadOptions & BuilderOptions & { outputDir: string }
@@ -174,10 +175,7 @@ export async function buildStaticStandalone(
         const storyIndex = await generator?.getIndex();
         const payload = storyIndex
           ? {
-              storyIndex: {
-                storyCount: Object.keys(storyIndex.entries).length,
-                version: storyIndex.v,
-              },
+              storyIndex: summarizeIndex(storyIndex),
             }
           : undefined;
         await telemetry('build', payload, { configDir: options.configDir });

code/lib/core-server/src/dev-server.ts

@@ -17,6 +17,7 @@ import { getServerChannel } from './utils/get-server-channel';
 import { openInBrowser } from './utils/open-in-browser';
 import { getBuilders } from './utils/get-builders';
 import { StoryIndexGenerator } from './utils/StoryIndexGenerator';
+import { summarizeIndex } from './utils/summarizeIndex';
 
 // @ts-expect-error (Converted from ts-ignore)
 export const router: Router = new Router();
@@ -68,10 +69,7 @@ export async function storybookDevServer(options: Options) {
       const storyIndex = await generator?.getIndex();
       const payload = storyIndex
         ? {
-            storyIndex: {
-              storyCount: Object.keys(storyIndex.entries).length,
-              version: storyIndex.v,
-            },
+            storyIndex: summarizeIndex(storyIndex),
           }
         : undefined;
       telemetry('dev', payload, { configDir: options.configDir });

code/lib/core-server/src/utils/summarizeIndex.ts

@@ -0,0 +1,28 @@
+import { Store_StoryIndex } from '@storybook/types';
+
+export function summarizeIndex(storyIndex: Store_StoryIndex) {
+  let storyCount = 0;
+  let docsPageCount = 0;
+  let storiesMdxCount = 0;
+  let mdxCount = 0;
+  Object.values(storyIndex.entries).forEach((entry) => {
+    if (entry.type === 'story') {
+      storyCount += 1;
+    } else if (entry.type === 'docs') {
+      if (entry.standalone) {
+        mdxCount += 1;
+      } else if (entry.importPath.endsWith('.mdx')) {
+        storiesMdxCount += 1;
+      } else {
+        docsPageCount += 1;
+      }
+    }
+  });
+  return {
+    storyCount,
+    docsPageCount,
+    storiesMdxCount,
+    mdxCount,
+    version: storyIndex.v,
+  };
+}

code/lib/telemetry/src/index.ts

@@ -14,7 +14,11 @@ export const telemetry = async (
   payload: Payload = {},
   options: Partial<Options> = {}
 ) => {
-  await notify();
+  // Don't notify on boot since it can lead to double notification in `sb init`.
+  // The notification will happen when the actual command runs.
+  if (eventType !== 'boot') {
+    await notify();
+  }
   const telemetryData: TelemetryData = {
     eventType,
     payload,