Imports gopkg.in/src-d/go-billy.v4/osfs gopkg.in/src-d/go-git.v4/plumbing/object gopkg.in/src-d/go-git.v4 gopkg.in/src-d/go-git.v4/plumbing gopkg.in/src-d/go-git.v4/storage/filesystem bitbucket.org/ignitionrobotics/ign-go github.com/pkg/errors Standard library imports bytes context fmt io io/ioutil os os/exec path/filepath strconv strings time