Kcptun installing get back.

ShadowsocksX-NG/AppDelegate.swift

@@ -83,6 +83,8 @@ class AppDelegate: NSObject, NSApplicationDelegate, NSUserNotificationCenterDele
         InstallSSLocal()
         InstallPrivoxy()
         InstallSimpleObfs()
+        InstallKcptun()
+        
         // Prepare defaults
         let defaults = UserDefaults.standard
         defaults.register(defaults: [

ShadowsocksX-NG/LaunchAgentUtils.swift

@@ -210,6 +210,26 @@ func InstallSimpleObfs() {
     }
 }
 
+// --------------------------------------------------------------------------------
+//  MARK: kcptun
+
+func InstallKcptun() {
+    let fileMgr = FileManager.default
+    let homeDir = NSHomeDirectory()
+    let appSupportDir = homeDir+APP_SUPPORT_DIR
+    if !fileMgr.fileExists(atPath: appSupportDir + "kcptun_\(KCPTUN_CLIENT_VERSION)/kcptun_client") {
+        let bundle = Bundle.main
+        let installerPath = bundle.path(forResource: "install_kcptun", ofType: "sh")
+        let task = Process.launchedProcess(launchPath: "/bin/sh", arguments: [installerPath!])
+        task.waitUntilExit()
+        if task.terminationStatus == 0 {
+            NSLog("Install kcptun succeeded.")
+        } else {
+            NSLog("Install kcptun failed.")
+        }
+    }
+}
+
 // --------------------------------------------------------------------------------
 //  MARK: privoxy
 

ShadowsocksX-NG/kcptun/install_kcptun.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+#  install_kcptun.sh
+#  ShadowsocksX-NG
+#
+#  Created by 邱宇舟 on 2018/9/21.
+#  Copyright © 2018年 qiuyuzhou. All rights reserved.
+
+# https://github.com/shadowsocks/kcptun/releases
+
+VERSION="v20170718"
+
+cd `dirname "${BASH_SOURCE[0]}"`
+
+mkdir -p "$HOME/Library/Application Support/ShadowsocksX-NG/kcptun_$VERSION"
+cp -f kcptun_client "$HOME/Library/Application Support/ShadowsocksX-NG/kcptun_$VERSION/"
+
+ln -sfh "$HOME/Library/Application Support/ShadowsocksX-NG/kcptun_$VERSION/kcptun_client" "$HOME/Library/Application Support/ShadowsocksX-NG/plugins/kcptun"
+
+echo "install kcptun done"