Imports golang.org/x/net/http2 github.com/aws/aws-sdk-go/aws github.com/aws/aws-sdk-go/aws/awserr github.com/aws/aws-sdk-go/service/s3 github.com/aws/aws-sdk-go/service/s3/s3manager github.com/aws/aws-sdk-go/aws/session Standard library imports crypto/md5 compress/gzip bytes encoding/base64 encoding/json flag fmt io log net net/http os path/filepath strings time