generate-blog-metadata.mjs

#!/usr/bin/env node

import fs from 'fs'
import path from 'path'
import { fileURLToPath } from 'url'

const __filename = fileURLToPath(import.meta.url)
const __dirname = path.dirname(__filename)
const ROOT_DIR = path.resolve(__dirname, '..')

const POSTS_DIR = path.join(ROOT_DIR, 'src/app/(post)/post')
const OUTPUT_FILE = path.join(ROOT_DIR, '_data/_blog.json')

function extractMetadata(filePath) {
  try {
    const content = fs.readFileSync(filePath, 'utf8')

    // Match `const metadata: PageMetadata = { … }` (folder-per-post shape)
    const metadataMatch = content.match(
      /^const metadata[^=]*=\s*({[\s\S]*?^})/m