Imports github.com/RoaringBitmap/roaring github.com/aws/aws-sdk-go/aws github.com/aws/aws-sdk-go/aws/session github.com/aws/aws-sdk-go/service/s3 github.com/aws/aws-sdk-go/service/s3/s3manager github.com/google/codesearch/index Standard library imports bufio compress/gzip errors fmt io io/ioutil log os regexp regexp/syntax strconv strings sync