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scripts/generate-icons.js

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+const fs = require('fs');
+const path = require('path');
+
+// 检查是否安装了 sharp
+try {
+  const sharp = require('sharp');
+  
+  const inputFile = path.join(__dirname, '../public/icon.png');
+  const outputDir = path.join(__dirname, '../public');
+  
+  const sizes = [
+    { name: 'favicon-16x16.png', size: 16 },
+    { name: 'favicon-32x32.png', size: 32 },
+    { name: 'apple-touch-icon.png', size: 180 },
+    { name: 'android-chrome-192x192.png', size: 192 },
+    { name: 'android-chrome-512x512.png', size: 512 },
+  ];
+  
+  async function generateIcons() {
+    for (const { name, size } of sizes) {
+      await sharp(inputFile)
+        .resize(size, size, {
+          fit: 'contain',
+          background: { r: 255, g: 255, b: 255, alpha: 0 }
+        })
+        .png()
+        .toFile(path.join(outputDir, name));
+      console.log(`✓ 生成 ${name}`);
+    }
+    console.log('✅ 所有图标生成完成！');
+  }
+  
+  generateIcons().catch(err => {
+    console.error('❌ 生成图标失败:', err.message);
+    console.log('💡 请运行: npm install sharp --save-dev');
+  });
+  
+} catch (err) {
+  console.log('⚠️  未安装 sharp 包');
+  console.log('💡 可选：运行 npm install sharp --save-dev 来生成不同尺寸的图标');
+  console.log('✓  当前使用原始图片作为所有尺寸的图标');
+}