chore: add /restart to restful api

hub/route/restart.go

@@ -0,0 +1,53 @@
+package route
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+	"os/exec"
+	"runtime"
+	"syscall"
+
+	"github.com/Dreamacro/clash/log"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/go-chi/render"
+)
+
+func restartRouter() http.Handler {
+	r := chi.NewRouter()
+	r.Post("/", restart)
+	return r
+}
+
+func restart(w http.ResponseWriter, r *http.Request) {
+	// modify from https://github.com/AdguardTeam/AdGuardHome/blob/595484e0b3fb4c457f9bb727a6b94faa78a66c5f/internal/home/controlupdate.go#L180
+	execPath, err := os.Executable()
+	if err != nil {
+		render.Status(r, http.StatusInternalServerError)
+		render.JSON(w, r, newError(fmt.Sprintf("getting path: %s", err)))
+		return
+	}
+
+	if runtime.GOOS == "windows" {
+		cmd := exec.Command(execPath, os.Args[1:]...)
+		log.Infoln("restarting: %q %q", execPath, os.Args[1:])
+		cmd.Stdin = os.Stdin
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		err = cmd.Start()
+		if err != nil {
+			log.Fatalln("restarting:: %s", err)
+		}
+
+		os.Exit(0)
+	}
+
+	log.Infoln("restarting: %q %q", execPath, os.Args[1:])
+	err = syscall.Exec(execPath, os.Args, os.Environ())
+	if err != nil {
+		log.Fatalln("restarting: %s", err)
+	}
+
+	render.JSON(w, r, render.M{"status": "ok"})
+}

hub/route/server.go

@@ -86,6 +86,7 @@ func Start(addr string, tlsAddr string, secret string,
 		r.Mount("/providers/rules", ruleProviderRouter())
 		r.Mount("/cache", cacheRouter())
 		r.Mount("/dns", dnsRouter())
+		r.Mount("/restart", restartRouter())
 	})
 
 	if uiPath != "" {