Imports github.com/blang/semver github.com/gorilla/websocket github.com/kardianos/osext github.com/nu7hatch/gouuid github.com/rhysd/go-github-selfupdate/selfupdate github.com/tatsushid/go-fastping Standard library imports bytes encoding/json flag fmt io/ioutil log math/rand net net/http net/url os os/signal syscall time