[code-infra] Discover exports for bundle size report (#48170)

Author: Janpot

test/bundle-size/bundle-size-checker.config.mjs

@@ -3,49 +3,21 @@
  *
  * This file determines which packages and components will have their bundle sizes measured.
  */
-import path from 'path';
-import glob from 'fast-glob';
 import { defineConfig } from '@mui/internal-bundle-size-checker';
 
-const rootDir = path.resolve(import.meta.dirname, '../..');
-
 /**
  * Generates the entrypoints configuration by scanning the project structure.
  */
 export default defineConfig(async () => {
-  // Discover Material UI components
-  const materialPackagePath = path.join(rootDir, 'packages/mui-material/build');
-  const materialFiles = await glob(path.join(materialPackagePath, '([A-Z])*/index.js'));
-  const materialComponents = materialFiles.map((componentPath) => {
-    const componentName = path.basename(path.dirname(componentPath));
-    return `@mui/material/${componentName}`;
-  });
-
-  // Discover Lab components
-  const labPackagePath = path.join(rootDir, 'packages/mui-lab/build');
-  const labFiles = await glob(path.join(labPackagePath, '([A-Z])*/index.js'));
-  const labComponents = labFiles.map((componentPath) => {
-    const componentName = path.basename(path.dirname(componentPath));
-    return `@mui/lab/${componentName}`;
-  });
-
   // Return the complete entrypoints configuration
   return {
     entrypoints: [
-      '@mui/material',
-      ...materialComponents,
-      '@mui/lab',
-      ...labComponents,
-      '@mui/private-theming',
-      '@mui/system',
-      '@mui/system/createBox',
-      '@mui/system/createStyled',
+      { id: '@mui/material', expand: true },
       '@mui/material/styles#createTheme',
-      '@mui/system/colorManipulator',
-      '@mui/lab/useAutocomplete',
-      '@mui/material/useMediaQuery',
-      '@mui/material/useScrollTrigger',
-      '@mui/utils',
+      { id: '@mui/lab', expand: true },
+      '@mui/private-theming',
+      { id: '@mui/system', expand: true },
+      { id: '@mui/utils', expand: true },
     ],
     upload: !!process.env.CI,
     comment: false,