Port to libyang 2

- There is no pretty print parameter for print functions (was LYP_FORMAT
  in 1.x). Also there were renamed functions freeing libyang structures
  from memory.

- Change test_data_parse_config_json() to be working

  cdefs.h: Add lyd_parse_mem() and its parser and validation options.

  context.py: Change keyword parameters for parse_data_mem() according
  to a parser parameters in libyang2.

  data.py: change parser flags, add validation flags. They have been
  change and split for parse_*() fuctions in libyang2.

  test_data.py: in test_data_parse_config_json(), change comparison data
  for assert. There is no "pretty" parameter in libyang2 anymore (its
  implicit now) and json data are printed with sorted keys.

  However, test_data_parse_config_json() still does not pass because
  resulting json have the "number" union listed with numbers as string
  not as integer. It looks like a bug in libyang2.

- Function print_mem() needs to be used with with_siblings parameter,
  otherwise prints only one unspecified node on the same level.

- Function feature_disable() was removed because there is no replace for
  lys_features_disable() in libyang2. The only way how to disable
  eparticular feature is to disable all and enable set required features
  again.

- Parsed and compiled node schema trees corresponds closely to each
  other. In order connecting both together LY_CTX_SET_PRIV_PARSED
  context option is set by default. It is necessary for some features
  (eg. node type resolving).

- Libyang 2 does not have derived types anymore. All the code refering
  derived types removed. Removed also "description()" method, there is
  no support for it anymore.

- Function data.print_dict() was rewritten. There is no function like
  lys_should_print() in libyang2 thus nodes converted to json cannot be
  limited by parameters of this function.

- Parsing edit operation from dictionary is not supported because
  libyang2 is able to process LYD_TYPE_RPC_NETCONF operations only from
  XML format. The reason is that NETCONF supports XML only.

- Remove functions deprecated in libyang2

- Remove rpcreply argument from data.dict_to_dnode() since this
  information type is already know from DataType (lyd_type) structure.

Signed-off-by: Pepa Hajek <hajekpepa@gmail.com>
Signed-off-by: Jean-Sébastien Bevilacqua <jean-sebastien.bevilacqua@6wind.com>
Signed-off-by: Robin Jarry <robin@jarry.cc>

Author: Pepa Hajek

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: 3.8
+          python-version: 3.x
       - uses: actions/cache@v2
         with:
           path: ~/.cache/pip
@@ -27,18 +27,18 @@ jobs:
     strategy:
       matrix:
         include:
-          - python: 3.5
-            toxenv: py35
           - python: 3.6
             toxenv: py36
           - python: 3.7
             toxenv: py37
           - python: 3.8
             toxenv: py38
+          - python: 3.9
+            toxenv: py39
+          - python: "3.10"
+            toxenv: py310
           - python: pypy3
             toxenv: pypy3
-          - python: 3.x
-            toxenv: py3-libyang1
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2

Makefile

@@ -7,7 +7,7 @@ lint:
 	tox -e lint
 
 tests:
-	tox -e py3-libyang1
+	tox -e py37
 
 format:
 	tox -e format

README.rst

@@ -43,15 +43,13 @@ On a Debian/Ubuntu system::
 Compatibility
 -------------
 
-.. attention::
+The current version requires at least C `libyang 2.19`__.
 
-   For now, only `libyang 1.x`__ is supported. These CFFI bindings will not work
-   with the libyang 2.x. See issues `sysrepo/sysrepo-python#17`__ for more
-   details and `sysrepo/sysrepo-python#12`__ for updates.
+The last version of the bindings that works with C `libyang 1.x`__ is v1.7.0__.
 
-   __ https://github.com/CESNET/libyang/tree/libyang1
-   __ https://github.com/sysrepo/sysrepo-python/issues/17
-   __ https://github.com/sysrepo/sysrepo-python/issues/12
+__ https://github.com/CESNET/libyang/commit/94c581ae59ee79feecb8b560827e0760a4d4da53
+__ https://github.com/CESNET/libyang/tree/libyang1
+__ https://pypi.org/project/libyang/1.7.0/
 
 Compilation Flags
 -----------------