firebase - Firebase 云函数存储桶上传没有这样的文件或目录

Question

我正在编写一个云函数，每次将文件上传到我的默认 Firebase 存储桶时触发，如果它是图像，它会将其转换为 JPG。这是官方的火力基地示例：

exports.processTripImage = functions.storage.object().onFinalize((object) => {
  const filePath = object.name;
  const baseFileName = path.basename(filePath, path.extname(filePath));
  const fileDir = path.dirname(filePath);
  const JPEGFilePath = path.normalize(path.format({ dir: fileDir, name: baseFileName, ext: JPEG_EXTENSION }));
  const tempLocalFile = path.join(os.tmpdir(), filePath);
  const tempLocalDir = path.dirname(tempLocalFile);
  const tempLocalJPEGFile = path.join(os.tmpdir(), JPEGFilePath);

  // Exit if this is triggered on a file that is not an image.
  if (!object.contentType.startsWith('image/')) {
    console.log('This is not an image.');
    return null;
  }

  // Exit if the image is already a JPEG.
  if (object.contentType.startsWith('image/jpeg')) {
    console.log('Already a JPEG.');
    return null;
  }

  const bucket = gcs.bucket(object.bucket);
  // Create the temp directory where the storage file will be downloaded.
  return mkdirp(tempLocalDir).then(() => {
    // Download file from bucket.
    return bucket.file(filePath).download({ destination: tempLocalFile });
  }).then(() => {
    console.log('The file has been downloaded to', tempLocalFile);
    // Convert the image to JPEG using ImageMagick.
    return spawn('convert', [tempLocalFile, tempLocalJPEGFile]);
  }).then(() => {
    console.log('JPEG image created at', tempLocalJPEGFile);
    // Uploading the JPEG image.
    return bucket.upload(tempLocalJPEGFile, { destination: JPEGFilePath });
  }).then(() => {
    console.log('JPEG image uploaded to Storage at', JPEGFilePath);
    // Once the image has been converted delete the local files to free up disk space.
    fs.unlinkSync(tempLocalJPEGFile);
    fs.unlinkSync(tempLocalFile);
    return;
  });
})

问题是它写入文件并正确转换它，但是当它尝试将它上传回存储桶时，它无法在它刚刚创建的 tmp 目录中找到该文件。我的云功能日志：

标签： firebasegoogle-cloud-storagegoogle-cloud-functions