func configureLogger(s *server.Server, opts *server.Options) { var log server.Logger if opts.LogFile != "" { log = logger.NewFileLogger(opts.LogFile, opts.Logtime, opts.Debug, opts.Trace, true) } else if opts.RemoteSyslog != "" { log = logger.NewRemoteSysLogger(opts.RemoteSyslog, opts.Debug, opts.Trace) } else if opts.Syslog { log = logger.NewSysLogger(opts.Debug, opts.Trace) } else { colors := true // Check to see if stderr is being redirected and if so turn off color // Also turn off colors if we're running on Windows where os.Stderr.Stat() returns an invalid handle-error stat, err := os.Stderr.Stat() if err != nil || (stat.Mode()&os.ModeCharDevice) == 0 { colors = false } log = logger.NewStdLogger(opts.Logtime, opts.Debug, opts.Trace, colors, true) } s.SetLogger(log, opts.Debug, opts.Trace) }