context: add builtin_plugins_only options

This patch adds builtin_plugins_only option, which allows user to use
only basic YANG type plugins, instead of using advanced plugins as
ipv4-address etc.

Signed-off-by: Stefan Gula <steweg@gmail.com>

Author: steweg

cffi/cdefs.h

@@ -16,6 +16,7 @@ struct ly_ctx;
 #define LY_CTX_SET_PRIV_PARSED ...
 #define LY_CTX_LEAFREF_EXTENDED ...
 #define LY_CTX_LEAFREF_LINKING ...
+#define LY_CTX_BUILTIN_PLUGINS_ONLY ...
 
 
 typedef enum {

libyang/context.py

@@ -31,6 +31,7 @@ def __init__(
         explicit_compile: Optional[bool] = False,
         leafref_extended: bool = False,
         leafref_linking: bool = False,
+        builtin_plugins_only: bool = False,
         yanglib_path: Optional[str] = None,
         yanglib_fmt: str = "json",
         cdata=None,  # C type: "struct ly_ctx *"
@@ -50,6 +51,8 @@ def __init__(
             options |= lib.LY_CTX_LEAFREF_EXTENDED
         if leafref_linking:
             options |= lib.LY_CTX_LEAFREF_LINKING
+        if builtin_plugins_only:
+            options |= lib.LY_CTX_BUILTIN_PLUGINS_ONLY
         # force priv parsed
         options |= lib.LY_CTX_SET_PRIV_PARSED
 

tests/test_data.py

@@ -1,6 +1,7 @@
 # Copyright (c) 2020 6WIND S.A.
 # SPDX-License-Identifier: MIT
 
+import gc
 import json
 import os
 import unittest
@@ -1100,3 +1101,13 @@ def test_dnode_store_only(self):
         self.assertIsInstance(dnode, DLeaf)
         self.assertEqual(dnode.value(), 50)
         dnode.free()
+
+    def test_dnode_builtin_plugins_only(self):
+        MAIN = {"yolo-nodetypes:ip-address": "test"}
+        self.tearDown()
+        gc.collect()
+        self.ctx = Context(YANG_DIR, builtin_plugins_only=True)
+        module = self.ctx.load_module("yolo-nodetypes")
+        dnode = dict_to_dnode(MAIN, module, None, validate=False, store_only=True)
+        self.assertIsInstance(dnode, DLeaf)
+        dnode.free()

tests/yang/yolo/yolo-nodetypes.yang

@@ -3,6 +3,11 @@ module yolo-nodetypes {
   namespace "urn:yang:yolo:nodetypes";
   prefix sys;
 
+  import ietf-inet-types {
+    prefix inet;
+    revision-date 2013-07-15;
+  }
+
   description
     "YOLO Nodetypes.";
 
@@ -126,4 +131,8 @@ module yolo-nodetypes {
   anydata any1 {
     when "../cont2";
   }
+
+  leaf ip-address {
+    type inet:ipv4-address;
+  }
 }