Change argument parser with subparser.

home_backup/__main__.py

@@ -10,42 +10,35 @@ del rpc
 def main(args):
     # Parser
     parser = argparse.ArgumentParser("home-backup", description="Manage backup tools")
-    parser.add_argument("--sys-server", dest="sys_server", action="store_const", const=True, default=False, help="Run system service (root required).")
-    parser.add_argument("--user-server", dest="user_server", action="store_const", const=True, default=False, help="Run user service.")
+    sub_parser = parser.add_subparsers(dest="action")
+    parser_remote_add = sub_parser.add_parser("remote-add", help="Add remote for backups.")
+    parser_remote_list = sub_parser.add_parser("remote-list", help="List remotes.")
+    parser_remote_delete = sub_parser.add_parser("remote-delete", help="Delete remote.")
+
+    parser_system_server = sub_parser.add_parser("system-server", help="Run system service (root required).")
+    parser_user_server = sub_parser.add_parser("user-server", help="Run user service.")
 
     # Arguments
-    if not args:
-        args = ["--help"]
     result = parser.parse_args(args)
 
-    def check_client_args_exists():
-        return False
-
     # Deamon mode
-    if not isinstance(result.sys_server, bool):
-        raise RuntimeError("Arg parser has the wrong type.")
-    if not isinstance(result.user_server, bool):
-        raise RuntimeError("Arg parser has the wrong type.")
-    if result.sys_server and result.user_server:
-        raise ValueError("System and user service can't be set simultan.")
-    if result.sys_server:
+    if result.action == "system-server":
         # Checks
-        if check_client_args_exists():
-            raise RuntimeError("Client settings are setting in system service mode.")
         if os.getuid() != 0:  # Check root
             raise RuntimeError("System service has to run as root.")
 
         # Run deamon
         asyncio.run(sys_service.rpc.run_deamon())  # TODO: Change default path
-    elif result.user_server:
-        # Checks
-        if check_client_args_exists():
-            raise RuntimeError("Client settings are setting in system service mode.")
-
-        # Run deamon
+    elif result.action == "user-server":
         asyncio.run(user_service.rpc.run_deamon())  # TODO: Change default path of user and system socket
+
+    # Client actions
+
+    # Not found action
+    elif result.action is None:
+        parser.parse_args(["--help"])
     else:
-        raise NotImplementedError()
+        raise NotImplementedError("Action %s isn't implemented." % result.action)
 
 
 if __name__ == "__main__":