feat: download/upgrade XD to external-ui

hub/route/server.go

@@ -49,6 +49,7 @@ type Memory struct {
 
 func SetUIPath(path string) {
 	uiPath = C.Path.Resolve(path)
+	C.UIPath = uiPath
 }
 
 func Start(addr string, tlsAddr string, secret string,

hub/route/upgrade.go

@@ -5,6 +5,7 @@ import (
 	"net/http"
 	"os"
 
+	"github.com/Dreamacro/clash/config"
 	"github.com/Dreamacro/clash/hub/updater"
 	"github.com/Dreamacro/clash/log"
 
@@ -15,6 +16,7 @@ import (
 func upgradeRouter() http.Handler {
 	r := chi.NewRouter()
 	r.Post("/", upgrade)
+	r.Post("/xd", updateXD)
 	return r
 }
 
@@ -43,3 +45,18 @@ func upgrade(w http.ResponseWriter, r *http.Request) {
 
 	go restartExecutable(execPath)
 }
+
+func updateXD(w http.ResponseWriter, r *http.Request) {
+	err := config.UpdateXD()
+	if err != nil {
+		log.Warnln("%s", err)
+		render.Status(r, http.StatusInternalServerError)
+		render.JSON(w, r, newError(fmt.Sprintf("%s", err)))
+		return
+	}
+
+	render.JSON(w, r, render.M{"status": "ok"})
+	if f, ok := w.(http.Flusher); ok {
+		f.Flush()
+	}
+}

hub/updater/updater.go

@@ -32,7 +32,7 @@ var (
 	workDir string
 
 	// mu protects all fields below.
-	mu sync.RWMutex
+	mu sync.Mutex
 
 	currentExeName string // 当前可执行文件
 	updateDir      string // 更新目录