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It provides anafero filesystem implementation of anS3 backend.

This was created to provide a backend to theftpserver but can definitely be used in any other code.

I'm very opened to any improvement through issues or pull-request that might lead to a better implementation or evenbetter testing.

• Download & upload file streaming
• 75% coverage (all APIs are tested, but not all errors are reproduced)
• Very carefully linted

• File appending / seeking for write is not supported because S3 doesn't support it, it could be simulated by rewriting entire files.
• Chtimes is not supported because S3 doesn't support it, it could be simulated through metadata.
• Chmod support is very limited

Note: Errors handling is skipped for brevity but you definitely have to handle it.

import("github.com/aws/aws-sdk-go/aws""github.com/aws/aws-sdk-go/aws/credentials""github.com/aws/aws-sdk-go/aws/session"  s3"github.com/fclairamb/afero-s3")funcmain() {// You create a sessionsess,_:=session.NewSession(&aws.Config{Region:aws.String(region),Credentials:credentials.NewStaticCredentials(keyID,secretAccessKey,""),  })// Initialize the file systems3Fs:=s3.NewFs(bucket,sess)// And do your thingfile,_:=fs.OpenFile("file.txt",os.O_WRONLY,0777)file.WriteString("Hello world !")file.Close()}

The initial code (which was massively rewritten) comes from:

• wreulicke's fork
• Itself forked fromaviau's fork.
• Initially proposed asan afero PR byrgarcia and updated byaviau.