Imports github.com/aws/aws-sdk-go-v2/config github.com/aws/aws-sdk-go-v2/feature/s3/manager github.com/aws/aws-sdk-go-v2/service/s3 golang.org/x/sync/errgroup Standard library imports bufio compress/gzip context crypto/rand encoding/hex encoding/json errors flag io io/fs log net os os/signal path path/filepath strings sync syscall time