ijit

scripts/picture.ts

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+import fs from 'node:fs';
+import path from 'node:path';
+import sharp from 'sharp';
+
+const root = path.join(process.cwd(), 'public','assets', 'daily');
+
+// 获取 root 目录下的所有图片，然后把图片的大小调整小一点，在 500k-1M 之间，放回原名。
+const zipPicture = async (root: string) => {
+  const files = fs.readdirSync(root);
+  for (const file of files) {
+    const filePath = path.join(root, file);
+    const stat = fs.statSync(filePath);
+    if (stat.isFile() && /\.(jpg|jpeg|png)$/i.test(file)) {
+      let buffer = fs.readFileSync(filePath);
+      let size = buffer.length;
+      if (size > 1024 * 1024) { // 超过1M才压缩
+        let quality = 80;
+        let compressedBuffer;
+        do {
+          compressedBuffer = await sharp(buffer)
+            .jpeg({ quality })
+            .toBuffer();
+          size = compressedBuffer.length;
+          quality -= 10;
+        } while (size > 1024 * 1024 && quality > 30);
+
+        if (size < 500 * 1024) {
+          // 如果压缩后小于500k，适当提高质量
+          quality += 5;
+          compressedBuffer = await sharp(buffer)
+            .jpeg({ quality })
+            .toBuffer();
+        }
+        fs.writeFileSync(filePath, compressedBuffer);
+        console.log(`${file} 压缩后大小: ${(compressedBuffer.length / 1024).toFixed(2)} KB`);
+      }
+    }
+  }
+};
+
+zipPicture(root);