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package main import ( "fmt" "io" "io/ioutil" "os" "github.com/docker/docker/pkg/tarsum" ) func main() { ts, err := tarsum.NewTarSum(os.Stdin, true, tarsum.Version1) if err != nil { fmt.Println(err) os.Exit(1) } if _, err = io.Copy(ioutil.Discard, ts); err != nil { fmt.Println(err) os.Exit(1) } fmt.Println(ts.Sum(nil)) }