如何使文件夹成为“帖子”?



代码

exports.generateThumbnail = functions.storage.object()
  .onChange(event => {
    const object = event.data
    const filePath = object.name
    const fileName = filePath.split('/').pop()
    const fileBucket = object.bucket;
    const bucket = gcs.bucket(fileBucket)
    const tempFilePath = `/posts/${fileName}`

    return bucket.file(filePath).download({
      destination: tempFilePath
    })
    .then(() => {
      console.log('image downloaded locally to', tempFilePath)
      return spawn('convert', [tempFilePath, '-thumbnail', '400x400>', tempFilePath])
    })
    .then(() => {
      console.log('thumbnail created')
      // match end of string that contains a slash followed by 0 or more characters that are not a slash:
      const thumbFilePath = filePath.replace(/(\/)?([^\/]*)*/, '$1thumb_$2')
          console.log('afoter=thumbFilePath=='+thumbFilePath);
      return bucket.upload(tempFilePath, {
        destination: thumbFilePath
      })
    })

  });

错误

最佳答案

除了/tmp目录之外,Cloud Functions具有只读文件系统。您需要使/posts目录类似于/tmp/posts才能创建目录或进行写入。您还可以使用node-tmp之类的东西来更轻松地管理临时文件/目录的创建。

10-07 19:18
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