fix #5: fix fatal error in connection function

Author: Geniucker

tools/initialize.py

@@ -20,7 +20,9 @@ def connect() -> int:
                 print("你没有安装usbmuxd，请再次阅读README中关于Linux的部分")
                 input("按回车退出")
         else:
-            utils.cmd(["xattr", "-d", "-r", "com.apple.quarantine", "."], getoutp=False)
+            quarantine = not -1 == utils.cmd(["xattr", "libimobiledevice/darwin/ideviceinfo"], libimobiledevice=False).find("quarantine")
+            if quarantine:
+                os.system("sudo xattr -d -r com.apple.quarantine .")
 
     input("请解锁手机或Pad后按回车")
     status = utils.pair()

tools/utils.py

@@ -1,12 +1,13 @@
-def cmd(i_cmd, getoutp=True):
+def cmd(i_cmd, getoutp=True, libimobiledevice=True):
     from main import seperator
     from main import libimobiledeviceDir
     from main import OS, env
     import subprocess
-    if type(i_cmd) == str:
-        i_cmd = seperator.join([libimobiledeviceDir, i_cmd])
-    else:
-        i_cmd[0] = seperator.join([libimobiledeviceDir, i_cmd[0]])
+    if libimobiledevice:
+        if type(i_cmd) == str:
+            i_cmd = seperator.join([libimobiledeviceDir, i_cmd])
+        else:
+            i_cmd[0] = seperator.join([libimobiledeviceDir, i_cmd[0]])
     if getoutp:
         return subprocess.Popen(i_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env[OS]).stdout.read().decode("utf-8")
     else: