func (r *Repo) Check(tx *sqlx.Tx) (d *Diff, err error) {
	return nil, errors.New("Function not implemented")
}
Check makes sure the DB matches disk
package repo
import (
	"errors"
	"github.com/getsolus/ferryd/jobs"
	"github.com/getsolus/ferryd/manifest"
	"github.com/getsolus/ferryd/repo/pkgs"
	"github.com/jmoiron/sqlx"
)