错误调整错误图像Firebase的大小

Question

所以我正在使用Google Storage API调整图像大小。代码如下所示。在触发器的第一次运行中，它会按预期调整图像的大小。

但是第二次触发该功能时，它会触发第一张图像，而不是当前上传的图像。

我不确定在这种情况下该怎么办。 onFinalize（）引用是否不变？

export const generateThumbs = functions.storage.object().onFinalize(async object => {
      const bucket =  gcs.bucket(object.bucket)

      const filePath = object.name
      const fileName = filePath.split('/').pop()
      const bucketDir = dirname(filePath)

      console.log("fileName is " + fileName)

      const workingDir = join(tmpdir(), 'thumbs')
      console.log(("workingDir "))
      const tmpFilePath = join(workingDir, 'source.png')

      if (fileName.includes('thumb@') || !object.contentType.includes('image')) {
        console.log('exiting function');
        return false;
      }

      // 1. Ensure thumbnail dir exists
      await fs.ensureDir(workingDir);

      // 2. Download Source File
      await bucket.file(filePath).download({
        destination: tmpFilePath
      });

      // 3 define the size
      const sizes = 256

      const uploadPromises = (async (size) => {
        const thumbName = `thumb@${size}_${fileName}`;
        const thumbPath = join(workingDir, thumbName);

        // Resize source image
        await sharp(tmpFilePath)
          .resize(size, size)
          .toFile(thumbPath);

        // Upload to GCS
        return bucket.upload(thumbPath, {
          destination: join(bucketDir, thumbName)
        });
      })

      // 4. Run the upload operations
      await uploadPromises

      // 5. Cleanup remove the tmp/thumbs from the filesystem
      return fs.remove(workingDir)

      })