options: introduce NoBrowse option for OSX

options.go

@@ -106,6 +106,14 @@ func NoAppleXattr() MountOption {
 	return noAppleXattr
 }
 
+// NoBrowse makes OSXFUSE mark the volume as non-browsable, so that
+// Finder won't automatically browse it.
+//
+// OS X only.  Others ignore this option.
+func NoBrowse() MountOption {
+	return noBrowse
+}
+
 // ExclCreate causes O_EXCL flag to be set for only "truly" exclusive creates,
 // i.e. create calls for which the initiator explicitly set the O_EXCL flag.
 //

options_darwin.go

@@ -33,3 +33,8 @@ func exclCreate(conf *mountConfig) error {
 	conf.options["excl_create"] = ""
 	return nil
 }
+
+func noBrowse(conf *mountConfig) error {
+	conf.options["nobrowse"] = ""
+	return nil
+}

options_freebsd.go

@@ -26,3 +26,7 @@ func noAppleDouble(conf *mountConfig) error {
 func exclCreate(conf *mountConfig) error {
 	return nil
 }
+
+func noBrowse(conf *mountConfig) error {
+	return nil
+}

options_linux.go

@@ -23,3 +23,7 @@ func noAppleDouble(conf *mountConfig) error {
 func exclCreate(conf *mountConfig) error {
 	return nil
 }
+
+func noBrowse(conf *mountConfig) error {
+	return nil
+}