vyos.configtree: T6742: add bindings for create_node and is_leaf/set_…

…leaf (#4109)

python/vyos/configtree.py

@@ -88,6 +88,10 @@ def __init__(self, config_string=None, address=None, libpath=LIBPATH):
         self.__to_json_ast.argtypes = [c_void_p]
         self.__to_json_ast.restype = c_char_p
 
+        self.__create_node = self.__lib.create_node
+        self.__create_node.argtypes = [c_void_p, c_char_p]
+        self.__create_node.restype = c_int
+
         self.__set_add_value = self.__lib.set_add_value
         self.__set_add_value.argtypes = [c_void_p, c_char_p, c_char_p]
         self.__set_add_value.restype = c_int
@@ -140,6 +144,14 @@ def __init__(self, config_string=None, address=None, libpath=LIBPATH):
         self.__set_tag.argtypes = [c_void_p, c_char_p]
         self.__set_tag.restype = c_int
 
+        self.__is_leaf = self.__lib.is_leaf
+        self.__is_leaf.argtypes = [c_void_p, c_char_p]
+        self.__is_leaf.restype = c_bool
+
+        self.__set_leaf = self.__lib.set_leaf
+        self.__set_leaf.argtypes = [c_void_p, c_char_p, c_bool]
+        self.__set_leaf.restype = c_int
+
         self.__get_subtree = self.__lib.get_subtree
         self.__get_subtree.argtypes = [c_void_p, c_char_p]
         self.__get_subtree.restype = c_void_p
@@ -197,6 +209,14 @@ def to_json(self):
     def to_json_ast(self):
         return self.__to_json_ast(self.__config).decode()
 
+    def create_node(self, path):
+        check_path(path)
+        path_str = " ".join(map(str, path)).encode()
+
+        res = self.__create_node(self.__config, path_str)
+        if (res != 0):
+            raise ConfigTreeError(f"Path already exists: {path}")
+
     def set(self, path, value=None, replace=True):
         """Set new entry in VyOS configuration.
         path: configuration path e.g. 'system dns forwarding listen-address'
@@ -349,6 +369,22 @@ def set_tag(self, path):
         else:
             raise ConfigTreeError("Path [{}] doesn't exist".format(path_str))
 
+    def is_leaf(self, path):
+        check_path(path)
+        path_str = " ".join(map(str, path)).encode()
+
+        return self.__is_leaf(self.__config, path_str)
+
+    def set_leaf(self, path, value):
+        check_path(path)
+        path_str = " ".join(map(str, path)).encode()
+
+        res = self.__set_leaf(self.__config, path_str, value)
+        if (res == 0):
+            return True
+        else:
+            raise ConfigTreeError("Path [{}] doesn't exist".format(path_str))
+
     def get_subtree(self, path, with_node=False):
         check_path(path)
         path_str = " ".join(map(str, path)).encode()