feat: initialize gomdown-helper with yt-dlp transfer flow

scripts/build-platform.mjs

@@ -0,0 +1,73 @@
+import fs from 'node:fs'
+import path from 'node:path'
+import { execSync } from 'node:child_process'
+import { fileURLToPath } from 'node:url'
+
+const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..')
+const distDir = path.join(root, 'dist')
+const outRoot = path.join(root, 'packages')
+const version = JSON.parse(fs.readFileSync(path.join(root, 'package.json'), 'utf8')).version
+const input = process.argv[2]
+const targets = input === 'all' ? ['chrome', 'edge', 'firefox'] : [input]
+
+if (!input || !['chrome', 'edge', 'firefox', 'all'].includes(input)) {
+  console.error('usage: node scripts/build-platform.mjs <chrome|edge|firefox|all>')
+  process.exit(1)
+}
+
+if (!fs.existsSync(distDir)) {
+  console.error('dist not found. run npm run build first.')
+  process.exit(1)
+}
+
+fs.mkdirSync(outRoot, { recursive: true })
+
+function rmrf(target) {
+  fs.rmSync(target, { recursive: true, force: true })
+}
+
+function copyDir(from, to) {
+  fs.mkdirSync(to, { recursive: true })
+  for (const entry of fs.readdirSync(from, { withFileTypes: true })) {
+    const src = path.join(from, entry.name)
+    const dst = path.join(to, entry.name)
+    if (entry.isDirectory()) copyDir(src, dst)
+    else fs.copyFileSync(src, dst)
+  }
+}
+
+function patchManifest(targetDir, platform) {
+  const manifestPath = path.join(targetDir, 'manifest.json')
+  const manifest = JSON.parse(fs.readFileSync(manifestPath, 'utf8'))
+
+  manifest.name = 'Gomdown Helper'
+  manifest.short_name = 'Gomdown'
+
+  if (platform === 'firefox') {
+    manifest.browser_specific_settings = {
+      gecko: {
+        id: 'gomdown-helper@projectdx',
+      },
+    }
+    if (manifest.background && manifest.background.type) {
+      delete manifest.background.type
+    }
+  } else {
+    delete manifest.browser_specific_settings
+  }
+
+  fs.writeFileSync(manifestPath, JSON.stringify(manifest, null, 2) + '\n')
+}
+
+for (const platform of targets) {
+  const stageDir = path.join(outRoot, `${platform}`)
+  rmrf(stageDir)
+  copyDir(distDir, stageDir)
+  patchManifest(stageDir, platform)
+
+  const zipName = `gomdown-helper.v${version}.${platform}.zip`
+  const zipPath = path.join(outRoot, zipName)
+  rmrf(zipPath)
+  execSync(`cd ${JSON.stringify(stageDir)} && zip -qr ${JSON.stringify(zipPath)} .`)
+  console.log(`built: ${zipPath}`)
+}