//go:build !appengine && !js && !windows && !nacl && !plan9 // +build !appengine,!js,!windows,!nacl,!plan9 package logrus import ( "io" "os" ) func checkIfTerminal(w io.Writer) bool { switch v := w.(type) { case *os.File: return isTerminal(int(v.Fd())) default: return false } }