Feature: Support fallback group

ClashX/General/ProxyMenuItemFactory.swift

@@ -23,7 +23,7 @@ class ProxyMenuItemFactory {
                 var menu:NSMenuItem?
                 switch proxyGroup.value["type"].stringValue {
                 case "Selector": menu = self.generateSelectorMenuItem(json: dataDict, key: proxyGroup.key)
-                case "URLTest": menu = self.generateUrlTestMenuItem(proxyGroup: proxyGroup)
+                case "URLTest","Fallback": menu = self.generateUrlTestMenuItem(proxyGroup: proxyGroup)
                 default: continue
                 }
                 if (menu != nil) {menuItems.append(menu!)}

ClashX/Support Files/initConfig.ini

@@ -9,7 +9,14 @@ proxy = ss, 127.0.0.1, 80, RC4-MD5, password
 [Proxy Group]
 # Proxy = select, proxy
 
+# url-test select which proxy will be used by benchmarking speed to a URL.
+# name = url-test, [proxys], url, interval(second)
+
+# fallback select which proxy is alive by testing with a URL.
+# name = failback, [proxys], url, timeout
+
 [Rule]
+# https://github.com/Hackl0us/SS-Rule-Snippet
 
 # Apple服务优化
 # 其他服务

ClashX/Support Files/sampleConfig.ini

@@ -13,6 +13,8 @@ external-controller = 127.0.0.1:7892
 
 # url-test select which proxy will be used by benchmarking speed to a URL.
 # name = url-test, [proxys], url, interval(second)
+# fallback select which proxy is alive by testing with a URL.
+# name = failback, [proxys], url, timeout
 
 {{ProxyAutoGroupPlaceHolder}}
 
@@ -21,7 +23,7 @@ Proxy = select, {{ProxyGroupPlaceHolder}}
 
 
 [Rule]
-
+# https://github.com/Hackl0us/SS-Rule-Snippet
 # Apple服务优化
 // 其他服务
 USER-AGENT,com.apple.appstored*,DIRECT