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。