Vite: Import preview runtime as ordinary module

code/builders/builder-vite/input/iframe.html

@@ -64,7 +64,6 @@
     <!-- [BODY HTML SNIPPET HERE] -->
     <div id="storybook-root"></div>
     <div id="storybook-docs"></div>
-    <script type="module" src="./sb-preview/runtime.js"></script>
     <script type="module" src="/virtual:/@storybook/builder-vite/vite-app.js"></script>
   </body>
 </html>

code/builders/builder-vite/src/build.ts

@@ -24,11 +24,7 @@ export async function build(options: Options) {
       outDir: options.outputDir,
       emptyOutDir: false, // do not clean before running Vite build - Storybook has already added assets in there!
       rollupOptions: {
-        external: [
-          // Do not try to bundle the Storybook runtime, it is copied into the output dir after the build.
-          './sb-preview/runtime.js',
-          /\.\/sb-common-assets\/.*\.woff2/,
-        ],
+        external: [/\.\/sb-common-assets\/.*\.woff2/],
       },
       ...(options.test
         ? {

code/builders/builder-vite/src/codegen-modern-iframe-script.ts

@@ -67,10 +67,15 @@ export async function generateModernIframeScriptCode(options: Options, projectRo
    * @todo Inline variable and remove `noinspection`
    */
   const code = `
-  import { composeConfigs, PreviewWeb, ClientApi } from 'storybook/internal/preview-api';
+  import { setup } from '@storybook/core/preview/runtime';
   import '${SB_VIRTUAL_FILES.VIRTUAL_ADDON_SETUP_FILE}';
+
+  setup();
+ 
+  import { composeConfigs, PreviewWeb, ClientApi } from 'storybook/internal/preview-api';
   import { importFn } from '${SB_VIRTUAL_FILES.VIRTUAL_STORIES_FILE}';
   
+  
     ${getPreviewAnnotationsFunction}
 
     window.__STORYBOOK_PREVIEW__ = window.__STORYBOOK_PREVIEW__ || new PreviewWeb(importFn, getProjectAnnotations);

code/builders/builder-vite/src/index.ts

@@ -1,6 +1,5 @@
 // noinspection JSUnusedGlobalSymbols
-import { cp, readFile } from 'node:fs/promises';
-import { join, parse } from 'node:path';
+import { readFile } from 'node:fs/promises';
 
 import { NoStatsForViteDevError } from 'storybook/internal/server-errors';
 import type { Middleware, Options } from 'storybook/internal/types';
@@ -61,15 +60,6 @@ export const start: ViteBuilder['start'] = async ({
 }) => {
   server = await createViteServer(options as Options, devServer);
 
-  const previewResolvedDir = join(corePath, 'dist/preview');
-  router.use(
-    '/sb-preview',
-    sirv(previewResolvedDir, {
-      maxAge: 300000,
-      dev: true,
-      immutable: true,
-    })
-  );
   router.use(iframeMiddleware(options as Options, server));
   router.use(server.middlewares);
 
@@ -85,22 +75,5 @@ export const start: ViteBuilder['start'] = async ({
 };
 
 export const build: ViteBuilder['build'] = async ({ options }) => {
-  const viteCompilation = viteBuild(options as Options);
-
-  const previewResolvedDir = join(corePath, 'dist/preview');
-  const previewDirTarget = join(options.outputDir || '', `sb-preview`);
-  const previewFiles = cp(previewResolvedDir, previewDirTarget, {
-    filter: (src) => {
-      const { ext } = parse(src);
-      if (ext) {
-        return ext === '.js';
-      }
-      return true;
-    },
-    recursive: true,
-  });
-
-  const [out] = await Promise.all([viteCompilation, previewFiles]);
-
-  return out;
+  return viteBuild(options as Options);
 };

code/builders/builder-vite/src/vite-server.ts

@@ -14,8 +14,6 @@ export async function createViteServer(options: Options, devServer: Server) {
 
   const config = {
     ...commonCfg,
-    // Needed in Vite 5: https://github.com/storybookjs/storybook/issues/25256
-    assetsInclude: getAssetsInclude(commonCfg, ['/sb-preview/**']),
     // Set up dev server
     server: {
       middlewareMode: true,

code/core/package.json

@@ -167,6 +167,12 @@
       "import": "./dist/cli/bin/index.js",
       "require": "./dist/cli/bin/index.cjs"
     },
+    "./preview/runtime": {
+      "import": "./dist/preview/runtime.js"
+    },
+    "./manager/globals-runtime": {
+      "import": "./dist/manager/globals-runtime.js"
+    },
     "./package.json": "./package.json"
   },
   "main": "dist/index.cjs",
@@ -192,15 +198,6 @@
       "core-server": [
         "./dist/core-server/index.d.ts"
       ],
-      "core-server/presets/common-preset": [
-        "./dist/core-server/presets/common-preset.d.ts"
-      ],
-      "core-server/presets/common-manager": [
-        "./dist/core-server/presets/common-manager.d.ts"
-      ],
-      "core-server/presets/common-override-preset": [
-        "./dist/core-server/presets/common-override-preset.d.ts"
-      ],
       "core-events": [
         "./dist/core-events/index.d.ts"
       ],

code/core/scripts/helpers/generatePackageJsonFile.ts

@@ -58,6 +58,10 @@ export async function generatePackageJsonFile(entries: ReturnType<typeof getEntr
     '*': {
       '*': ['./dist/index.d.ts'],
       ...entries.reduce<Record<string, string[]>>((acc, entry) => {
+        if (!entry.dts) {
+          return acc;
+        }
+
         let main = slash(relative(cwd, entry.file).replace('src', 'dist'));
         if (main === './dist/index.ts' || main === './dist/index.tsx') {
           main = '.';

code/core/scripts/prep.ts

@@ -59,7 +59,7 @@ async function run() {
   console.log(isWatch ? 'Watching...' : 'Bundling...');
 
   const files = measure(generateSourceFiles);
-  const packageJson = measure(() => generatePackageJsonFile(entries));
+  const packageJson = measure(() => generatePackageJsonFile(entries.concat(bundles)));
   const dist = files.then(() => measure(generateDistFiles));
   const types = files.then(() =>
     measure(async () => {

code/core/src/preview/runtime.ts

@@ -6,25 +6,30 @@ import { globalPackages, globalsNameReferenceMap } from './globals/globals';
 import { globalsNameValueMap } from './globals/runtime';
 import { prepareForTelemetry } from './utils';
 
-// Apply all the globals
-globalPackages.forEach((key) => {
-  (global as any)[globalsNameReferenceMap[key]] = globalsNameValueMap[key];
-});
+export function setup() {
+  // Apply all the globals
+  globalPackages.forEach((key) => {
+    (global as any)[globalsNameReferenceMap[key]] = globalsNameValueMap[key];
+  });
 
-global.sendTelemetryError = (error: any) => {
-  const channel = global.__STORYBOOK_ADDONS_CHANNEL__;
-  channel.emit(TELEMETRY_ERROR, prepareForTelemetry(error));
-};
+  global.sendTelemetryError = (error: any) => {
+    const channel = global.__STORYBOOK_ADDONS_CHANNEL__;
+    channel.emit(TELEMETRY_ERROR, prepareForTelemetry(error));
+  };
 
-// handle all uncaught StorybookError at the root of the application and log to telemetry if applicable
-global.addEventListener('error', (args: any) => {
-  const error = args.error || args;
-  if (error.fromStorybook) {
-    global.sendTelemetryError(error);
-  }
-});
-global.addEventListener('unhandledrejection', ({ reason }: any) => {
-  if (reason.fromStorybook) {
-    global.sendTelemetryError(reason);
-  }
-});
+  // handle all uncaught StorybookError at the root of the application and log to telemetry if applicable
+  global.addEventListener('error', (args: any) => {
+    const error = args.error || args;
+    if (error.fromStorybook) {
+      global.sendTelemetryError(error);
+    }
+  });
+  global.addEventListener('unhandledrejection', ({ reason }: any) => {
+    if (reason.fromStorybook) {
+      global.sendTelemetryError(reason);
+    }
+  });
+}
+
+// TODO: In the future, remove this call to make the module side-effect free
+setup();

code/frameworks/vue3-vite/src/plugins/vue-component-meta.ts

@@ -25,8 +25,7 @@ export async function vueComponentMeta(tsconfigPath = 'tsconfig.json'): Promise<
   const { createFilter } = await import('vite');
 
   // exclude stories, virtual modules and storybook internals
-  const exclude =
-    /\.stories\.(ts|tsx|js|jsx)$|^\0\/virtual:|^\/virtual:|^\/sb-preview\/|\.storybook\/.*\.(ts|js)$/;
+  const exclude = /\.stories\.(ts|tsx|js|jsx)$|^\0\/virtual:|^\/virtual:|\.storybook\/.*\.(ts|js)$/;
   const include = /\.(vue|ts|js|tsx|jsx)$/;
   const filter = createFilter(include, exclude);
 

code/lib/cli/core/manager/globals-runtime.js

@@ -0,0 +1 @@
+export * from '@storybook/core/manager/globals-runtime';

code/lib/cli/core/preview/runtime.js

@@ -0,0 +1 @@
+export * from '@storybook/core/preview/runtime';

code/lib/cli/package.json

@@ -187,6 +187,12 @@
       "types": "./core/babel/index.d.ts",
       "import": "./core/babel/index.js",
       "require": "./core/babel/index.cjs"
+    },
+    "./internal/manager/globals-runtime": {
+      "import": "./core/manager/globals-runtime.js"
+    },
+    "./internal/preview/runtime": {
+      "import": "./core/preview/runtime.js"
     }
   },
   "main": "dist/index.cjs",
@@ -227,15 +233,6 @@
       "internal/core-server": [
         "./core/core-server/index.d.ts"
       ],
-      "internal/core-server/presets/common-manager": [
-        "./core/core-server/presets/common-manager.d.ts"
-      ],
-      "internal/core-server/presets/common-override-preset": [
-        "./core/core-server/presets/common-override-preset.d.ts"
-      ],
-      "internal/core-server/presets/common-preset": [
-        "./core/core-server/presets/common-preset.d.ts"
-      ],
       "internal/csf-tools": [
         "./core/csf-tools/index.d.ts"
       ],