shadcn-ui/apps/v4/scripts/build-examples.ts

import { promises as fs } from "fs"
import path from "path"
import { rimraf } from "rimraf"

const BASES = ["base", "radix"] as const

async function buildExamplesIndex() {
  const cwd = process.cwd()
  const examplesDir = path.join(cwd, "examples")

  console.log("📋 Generating examples/__index__.tsx...")

  let index = `// @ts-nocheck
// This file is autogenerated by scripts/build-examples-index.mts
// Do not edit this file directly.
import * as React from "react"

export const ExamplesIndex: Record<string, Record<string, any>> = {`

  for (const base of BASES) {
    const baseDir = path.join(examplesDir, base)

    // Check if base directory exists.
    try {
      await fs.access(baseDir)
    } catch {
      console.log(`   Skipping ${base} - directory does not exist`)
      continue
    }

    // Find all demo files (excluding subdirectories like ui/).
    const allEntries = await fs.readdir(baseDir, { withFileTypes: true })
    const files = allEntries
      .filter((entry) => entry.isFile() && entry.name.endsWith(".tsx"))
      .map((entry) => entry.name)
      .sort()

    console.log(`   Found ${files.length} demos for ${base}`)

    index += `
  "${base}": {`

    for (const file of files) {
      const name = file.replace(/\.tsx$/, "")
      const filePath = `examples/${base}/${file}`

      index += `
    "${name}": {
      name: "${name}",
      filePath: "${filePath}",
      component: React.lazy(async () => {
        const mod = await import("./${base}/${name}")
        const exportName = Object.keys(mod).find(key => typeof mod[key] === 'function' || typeof mod[key] === 'object') || "${name}"
        return { default: mod.default || mod[exportName] }
      }),
    },`
    }

    index += `
  },`
  }

  index += `
}
`

  // Write the index file.
  const indexPath = path.join(examplesDir, "__index__.tsx")
  rimraf.sync(indexPath)
  await fs.writeFile(indexPath, index)

  console.log(`\n✅ Generated examples/__index__.tsx`)
}

buildExamplesIndex().catch(console.error)