Imports github.com/coreos/rkt/Godeps/_workspace/src/github.com/appc/spec/pkg/tarheader github.com/coreos/rkt/Godeps/_workspace/src/github.com/appc/spec/schema Standard library imports compress/gzip archive/tar bytes compress/bzip2 encoding/hex encoding/json errors fmt io io/ioutil log net/http os os/exec path/filepath strings time