move cache path from base controller to subsonic controller

server/ctrlbase/ctrl.go

@@ -47,7 +47,6 @@ func statusToBlock(code int) string {
 type Controller struct {
 	DB          *db.DB
 	MusicPath   string
-	CachePath   string
 	Scanner     *scanner.Scanner
 	ProxyPrefix string
 }

server/ctrlsubsonic/ctrl.go

@@ -24,11 +24,13 @@ const (
 
 type Controller struct {
 	*ctrlbase.Controller
+	cachePath string
 }
 
-func New(base *ctrlbase.Controller) *Controller {
+func New(base *ctrlbase.Controller, cachePath string) *Controller {
 	return &Controller{
 		Controller: base,
+		cachePath:  cachePath,
 	}
 }
 

server/ctrlsubsonic/ctrl_test.go

@@ -30,7 +30,10 @@ func init() {
 	if err != nil {
 		log.Fatalf("error opening database: %v\n", err)
 	}
-	testController = New(&ctrlbase.Controller{DB: db})
+	testController = New(
+		&ctrlbase.Controller{DB: db},
+		"",
+	)
 }
 
 type queryCase struct {

server/ctrlsubsonic/handlers_raw.go

@@ -136,7 +136,7 @@ func (c *Controller) ServeStream(w http.ResponseWriter, r *http.Request) *spec.R
 	}
 	servOpts.pref = pref
 	servOpts.maxBitrate = params.GetIntOr("maxBitRate", 0)
-	servOpts.cachePath = c.CachePath
+	servOpts.cachePath = c.cachePath
 	serveTrackEncode(w, r, servOpts)
 	return nil
 }

server/server.go

@@ -39,10 +39,11 @@ func New(opts Options) *Server {
 	opts.CachePath = filepath.Clean(opts.CachePath)
 	// ** begin controllers
 	scanner := scanner.New(opts.DB, opts.MusicPath)
+	// the base controller, it's fields/middlewares are embedded/used by the
+	// other two admin ui and subsonic controllers
 	base := &ctrlbase.Controller{
 		DB:          opts.DB,
 		MusicPath:   opts.MusicPath,
-		CachePath:   opts.CachePath,
 		ProxyPrefix: opts.ProxyPrefix,
 		Scanner:     scanner,
 	}
@@ -51,8 +52,10 @@ func New(opts Options) *Server {
 	r.Use(base.WithLogging)
 	r.Use(base.WithCORS)
 	setupMisc(r, base)
-	setupAdmin(r.PathPrefix("/admin").Subrouter(), ctrladmin.New(base))
-	setupSubsonic(r.PathPrefix("/rest").Subrouter(), ctrlsubsonic.New(base))
+	setupAdminRouter := r.PathPrefix("/admin").Subrouter()
+	setupAdmin(setupAdminRouter, ctrladmin.New(base))
+	setupSubsonicRouter := r.PathPrefix("/rest").Subrouter()
+	setupSubsonic(setupSubsonicRouter, ctrlsubsonic.New(base, opts.CachePath))
 	//
 	server := &http.Server{
 		Addr:         opts.ListenAddr,