chore: add script to check yt-dlp binary existence for cross-platform builds

package.json

@@ -15,9 +15,9 @@
     "build": "pnpm run typecheck && electron-vite build",
     "postinstall": "electron-builder install-app-deps",
     "build:unpack": "pnpm run build && electron-builder --dir",
-    "build:win": "pnpm run build && electron-builder --win",
-    "build:mac": "pnpm run build && electron-builder --mac",
-    "build:linux": "pnpm run build && electron-builder --linux",
+    "build:win": "node scripts/check-ytdlp.js win && pnpm run build && electron-builder --win",
+    "build:mac": "node scripts/check-ytdlp.js mac && pnpm run build && electron-builder --mac",
+    "build:linux": "node scripts/check-ytdlp.js linux && pnpm run build && electron-builder --linux",
     "release": "pnpm run check && bumpp"
   },
   "dependencies": {

scripts/check-ytdlp.js

@@ -0,0 +1,48 @@
+#!/usr/bin/env node
+
+const fs = require('node:fs')
+const path = require('node:path')
+
+/**
+ * Check if yt-dlp binary exists in resources directory
+ * Usage: node scripts/check-ytdlp.js [platform]
+ * Platform options: win, mac, linux
+ * Exit with error code 1 if not found
+ */
+function checkYtDlpExists(platform) {
+  const platformMap = {
+    win: 'yt-dlp.exe',
+    mac: 'yt-dlp_macos',
+    linux: 'yt-dlp_linux'
+  }
+
+  const filename = platformMap[platform]
+  if (!filename) {
+    console.error('❌ Error: Invalid platform specified!')
+    console.error('Usage: node scripts/check-ytdlp.js [win|mac|linux]')
+    process.exit(1)
+  }
+
+  const ytdlpPath = path.join(__dirname, '..', 'resources', filename)
+
+  if (!fs.existsSync(ytdlpPath)) {
+    console.error(`❌ Error: resources/${filename} not found!`)
+    console.error(`Please download ${filename} to the resources/ directory first.`)
+    console.error('You can download it from: https://github.com/yt-dlp/yt-dlp/releases/latest')
+    process.exit(1)
+  }
+
+  console.log(`✅ ${filename} found in resources/ directory`)
+}
+
+// Get platform from command line arguments
+const platform = process.argv[2]
+
+if (!platform) {
+  console.error('❌ Error: Platform argument is required!')
+  console.error('Usage: node scripts/check-ytdlp.js [win|mac|linux]')
+  process.exit(1)
+}
+
+// Run the check
+checkYtDlpExists(platform)