Function Debugger

tsweb/debug.go:46–73

Debugger returns the DebugHandler registered on mux at /debug/, creating it if necessary.

(mux *http.ServeMux)

// Debugger returns the DebugHandler registered on mux at /debug/,
// creating it if necessary.
func Debugger(mux *http.ServeMux) *DebugHandler {
	h, pat := mux.Handler(&http.Request{URL: &url.URL{Path: "/debug/"}})
	if d, ok := h.(*DebugHandler); ok && pat == "/debug/" {
		return d
	}
	ret := &DebugHandler{
		mux:   mux,
		title: fmt.Sprintf("%s debug", version.CmdName()),
	}
	mux.Handle("/debug/", ret)

	ret.KVFunc("Uptime", func() any { return varz.Uptime() })
	ret.KV("Version", version.Long())
	ret.Handle("vars", "Metrics (Go)", expvar.Handler())
	if PrometheusHandler.IsSet() {
		PrometheusHandler.Get()(ret)
	} else {
		ret.Handle("varz", "Metrics (Prometheus)", http.HandlerFunc(varz.Handler))
	}

	addProfilingHandlers(ret)
	ret.Handle("gc", "force GC", http.HandlerFunc(gcHandler))
	hostname, err := os.Hostname()
	if err == nil {
		ret.KV("Machine", hostname)
	}
	return ret
}

// ServeHTTP implements http.Handler.
func (d *DebugHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {