Telemetry: Don't count example stories towards CSF feature stats

code/core/src/core-server/utils/StoryIndexGenerator.test.ts

@@ -345,6 +345,19 @@ describe('StoryIndexGenerator', () => {
                 "title": "D",
                 "type": "story",
               },
+              "example-button--story-one": {
+                "componentPath": undefined,
+                "id": "example-button--story-one",
+                "importPath": "./src/Button.stories.ts",
+                "name": "Story One",
+                "tags": [
+                  "dev",
+                  "test",
+                  "foobar",
+                ],
+                "title": "Example/Button",
+                "type": "story",
+              },
               "first-nested-deeply-f--story-one": {
                 "componentPath": undefined,
                 "id": "first-nested-deeply-f--story-one",
@@ -599,6 +612,19 @@ describe('StoryIndexGenerator', () => {
                 "title": "D",
                 "type": "story",
               },
+              "example-button--story-one": {
+                "componentPath": undefined,
+                "id": "example-button--story-one",
+                "importPath": "./src/Button.stories.ts",
+                "name": "Story One",
+                "tags": [
+                  "dev",
+                  "test",
+                  "foobar",
+                ],
+                "title": "Example/Button",
+                "type": "story",
+              },
               "first-nested-deeply-f--story-one": {
                 "componentPath": undefined,
                 "id": "first-nested-deeply-f--story-one",
@@ -767,6 +793,8 @@ describe('StoryIndexGenerator', () => {
             "a--story-one",
             "b--docs",
             "b--story-one",
+            "example-button--docs",
+            "example-button--story-one",
             "d--docs",
             "d--story-one",
             "h--docs",
@@ -809,6 +837,8 @@ describe('StoryIndexGenerator', () => {
             "a--story-one",
             "b--docs",
             "b--story-one",
+            "example-button--docs",
+            "example-button--story-one",
             "d--docs",
             "d--story-one",
             "h--docs",
@@ -1797,6 +1827,7 @@ describe('StoryIndexGenerator', () => {
           "second-nested-g--story-one",
           "componentreference--docs",
           "notitle--docs",
+          "example-button--story-one",
           "h--story-one",
           "componentpath-extension--story-one",
           "componentpath-noextension--story-one",
@@ -1825,7 +1856,7 @@ describe('StoryIndexGenerator', () => {
         const generator = new StoryIndexGenerator([specifier], options);
         await generator.initialize();
         await generator.getIndex();
-        expect(readCsfMock).toHaveBeenCalledTimes(11);
+        expect(readCsfMock).toHaveBeenCalledTimes(12);
 
         readCsfMock.mockClear();
         await generator.getIndex();
@@ -1883,7 +1914,7 @@ describe('StoryIndexGenerator', () => {
         const generator = new StoryIndexGenerator([specifier], options);
         await generator.initialize();
         await generator.getIndex();
-        expect(readCsfMock).toHaveBeenCalledTimes(11);
+        expect(readCsfMock).toHaveBeenCalledTimes(12);
 
         generator.invalidate(specifier, './src/B.stories.ts', false);
 
@@ -1968,7 +1999,7 @@ describe('StoryIndexGenerator', () => {
         const generator = new StoryIndexGenerator([specifier], options);
         await generator.initialize();
         await generator.getIndex();
-        expect(readCsfMock).toHaveBeenCalledTimes(11);
+        expect(readCsfMock).toHaveBeenCalledTimes(12);
 
         generator.invalidate(specifier, './src/B.stories.ts', true);
 
@@ -2007,7 +2038,7 @@ describe('StoryIndexGenerator', () => {
         const generator = new StoryIndexGenerator([specifier], options);
         await generator.initialize();
         await generator.getIndex();
-        expect(readCsfMock).toHaveBeenCalledTimes(11);
+        expect(readCsfMock).toHaveBeenCalledTimes(12);
 
         generator.invalidate(specifier, './src/B.stories.ts', true);
 

code/core/src/core-server/utils/StoryIndexGenerator.ts

@@ -5,6 +5,7 @@ import { dirname, extname, join, normalize, relative, resolve, sep } from 'node:
 
 import { commonGlobOptions, normalizeStoryPath } from '@storybook/core/common';
 import { combineTags, storyNameFromExport, toId } from '@storybook/core/csf';
+import { isExampleStoryId } from '@storybook/core/telemetry';
 import type {
   DocsIndexEntry,
   DocsOptions,
@@ -269,7 +270,10 @@ export class StoryIndexGenerator {
             return item;
           }
 
-          addStats(item.extra.stats, statsSummary);
+          // don't count example stories towards feature usage stats
+          if (!isExampleStoryId(item.id)) {
+            addStats(item.extra.stats, statsSummary);
+          }
 
           // Drop extra data used for internal bookkeeping
           const { extra, ...existing } = item;

code/core/src/core-server/utils/__mockdata__/src/Button.stories.ts

@@ -0,0 +1,8 @@
+const component = {};
+export default {
+  title: 'Example/Button',
+  component,
+  tags: ['foobar'],
+};
+
+export const StoryOne = {};

code/core/src/core-server/utils/stories-json.test.ts

@@ -255,6 +255,18 @@ describe('useStoriesJson', () => {
               "title": "docs2/Yabbadabbadooo",
               "type": "docs",
             },
+            "example-button--story-one": {
+              "id": "example-button--story-one",
+              "importPath": "./src/Button.stories.ts",
+              "name": "Story One",
+              "tags": [
+                "dev",
+                "test",
+                "foobar",
+              ],
+              "title": "Example/Button",
+              "type": "story",
+            },
             "first-nested-deeply-f--story-one": {
               "id": "first-nested-deeply-f--story-one",
               "importPath": "./src/first-nested/deeply/F.stories.js",