libyang python APIs

files/build_templates/sonic_debian_extension.j2

@@ -110,6 +110,15 @@ sudo cp {{swsssdk_py2_wheel_path}} $FILESYSTEM_ROOT/$SWSSSDK_PY2_WHEEL_NAME
 sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install $SWSSSDK_PY2_WHEEL_NAME
 sudo rm -rf $FILESYSTEM_ROOT/$SWSSSDK_PY2_WHEEL_NAME
 
+# Install sonic-yang-mgmt Python 2 package, install dependencies
+sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/libyang_*.deb
+sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/libyang-cpp_*.deb
+sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/python2-yang_*.deb
+SONIC_YANG_MGMT_PY2_WHEEL_NAME=$(basename {{sonic_yang_mgmt_py2_wheel_path}})
+sudo cp {{sonic_yang_mgmt_py2_wheel_path}} $FILESYSTEM_ROOT/$SONIC_YANG_MGMT_PY2_WHEEL_NAME
+sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install $SONIC_YANG_MGMT_PY2_WHEEL_NAME
+sudo rm -rf $FILESYSTEM_ROOT/$SONIC_YANG_MGMT_PY2_WHEEL_NAME
+
 # Install sonic-platform-common Python 2 package
 PLATFORM_COMMON_PY2_WHEEL_NAME=$(basename {{platform_common_py2_wheel_path}})
 sudo cp {{platform_common_py2_wheel_path}} $FILESYSTEM_ROOT/$PLATFORM_COMMON_PY2_WHEEL_NAME

rules/sonic-yang-mgmt-py2.mk

@@ -0,0 +1,8 @@
+# sonic-yang-mgmt python2 wheel
+
+SONIC_YANG_MGMT_PY2 = sonic_yang_mgmt-1.0-py2-none-any.whl
+$(SONIC_YANG_MGMT_PY2)_SRC_PATH = $(SRC_PATH)/sonic-yang-mgmt
+$(SONIC_YANG_MGMT_PY2)_PYTHON_VERSION = 2
+$(SONIC_YANG_MGMT_PY2)_DEBS_DEPENDS = $(LIBYANG)
+
+SONIC_PYTHON_WHEELS += $(SONIC_YANG_MGMT_PY2)

slave.mk

@@ -441,7 +441,8 @@ SONIC_TARGET_LIST += $(addprefix $(PYTHON_DEBS_PATH)/, $(SONIC_PYTHON_STDEB_DEBS
 #     $(SOME_NEW_WHL)_PYTHON_VERSION = 2 (or 3)
 #     $(SOME_NEW_WHL)_DEPENDS = $(SOME_OTHER_WHL1) $(SOME_OTHER_WHL2) ...
 #     SONIC_PYTHON_WHEELS += $(SOME_NEW_WHL)
-$(addprefix $(PYTHON_WHEELS_PATH)/, $(SONIC_PYTHON_WHEELS)) : $(PYTHON_WHEELS_PATH)/% : .platform $$(addsuffix -install,$$(addprefix $(PYTHON_WHEELS_PATH)/,$$($$*_DEPENDS)))
+$(addprefix $(PYTHON_WHEELS_PATH)/, $(SONIC_PYTHON_WHEELS)) : $(PYTHON_WHEELS_PATH)/% : .platform $$(addsuffix -install,$$(addprefix $(PYTHON_WHEELS_PATH)/,$$($$*_DEPENDS))) \
+        $$(addsuffix -install,$$(addprefix $(DEBS_PATH)/,$$($$*_DEBS_DEPENDS)))
 	$(HEADER)
 	pushd $($*_SRC_PATH) $(LOG)
 	# apply series of patches if exist
@@ -626,7 +627,8 @@ $(addprefix $(TARGET_PATH)/, $(SONIC_INSTALLERS)) : $(TARGET_PATH)/% : \
         $(addprefix $(PYTHON_WHEELS_PATH)/,$(SONIC_CONFIG_ENGINE)) \
         $(addprefix $(PYTHON_WHEELS_PATH)/,$(SONIC_PLATFORM_COMMON_PY2)) \
         $(addprefix $(PYTHON_WHEELS_PATH)/,$(REDIS_DUMP_LOAD_PY2)) \
-        $(addprefix $(PYTHON_WHEELS_PATH)/,$(SONIC_PLATFORM_API_PY2))
+        $(addprefix $(PYTHON_WHEELS_PATH)/,$(SONIC_PLATFORM_API_PY2)) \
+        $(addprefix $(PYTHON_WHEELS_PATH)/,$(SONIC_YANG_MGMT_PY2))
 	$(HEADER)
 	# Pass initramfs and linux kernel explicitly. They are used for all platforms
 	export debs_path="$(STRETCH_DEBS_PATH)"
@@ -652,6 +654,7 @@ $(addprefix $(TARGET_PATH)/, $(SONIC_INSTALLERS)) : $(TARGET_PATH)/% : \
 	export platform_common_py2_wheel_path="$(addprefix $(PYTHON_WHEELS_PATH)/,$(SONIC_PLATFORM_COMMON_PY2))"
 	export redis_dump_load_py2_wheel_path="$(addprefix $(PYTHON_WHEELS_PATH)/,$(REDIS_DUMP_LOAD_PY2))"
 	export install_debug_image="$(INSTALL_DEBUG_TOOLS)"
+	export sonic_yang_mgmt_py2_wheel_path="$(addprefix $(PYTHON_WHEELS_PATH)/,$(SONIC_YANG_MGMT_PY2))"
 
 	$(foreach docker, $($*_DOCKERS),\
 		export docker_image="$(docker)"

src/sonic-yang-mgmt/AUTHORS.rst

@@ -0,0 +1,15 @@
+=======
+Credits
+=======
+
+Development Lead
+----------------
+
+LNOS-CODERS    <lnos-coders@linkedin.com>
+MSFT-LINUX-DEV <linuxnetdev@microsoft.com>
+
+Contributors
+------------
+
+Praveen Chaudhary      <pchaudhary@linkedin.com>
+Ping Mao               <pmao@linkedin.com>

src/sonic-yang-mgmt/LICENSE

@@ -0,0 +1,13 @@
+Copyright 2019 Microsoft, Inc
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

src/sonic-yang-mgmt/README.rst

@@ -0,0 +1,5 @@
+This Package will contain YANG models for sonic which are written with guidelines mentioned in
+https://github.com/Azure/SONiC/blob/master/doc/mgmt/SONiC_YANG_Model_Guidelines.md.
+
+This package will include python yang libraries which will be used with sonic utilities
+pacakge to validate the config.

src/sonic-yang-mgmt/setup.py

@@ -0,0 +1,84 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""The setup script."""
+
+from setuptools import setup, find_packages
+from setuptools.command.build_py import build_py
+from os import system
+from sys import exit
+import pytest
+
+# important reuirements parameters
+build_requirements = ['../../target/debs/stretch/libyang_1.0.73_amd64.deb',
+                      '../../target/debs/stretch/libyang-cpp_1.0.73_amd64.deb',
+                      '../../target/debs/stretch/python2-yang_1.0.73_amd64.deb']
+
+install_requirements = []
+
+setup_requirements = ['pytest-runner',]
+
+test_requirements = ['pytest>=3',]
+
+# read me
+with open('README.rst') as readme_file:
+    readme = readme_file.read()
+
+# class for prerequisites to build this package
+class pkgBuild(build_py):
+    """Custom Build PLY"""
+
+    def run (self):
+        # install libyang, it will be used for testing a build time
+        for req in build_requirements:
+            if 'target/debs'in req:
+                pkg_install_cmd = "sudo dpkg -i {}".format(req)
+                if (system(pkg_install_cmd)):
+                    print("{} installed failed".format(req))
+                else:
+                    print("{} installed".format(req))
+
+        # Continue usual build steps
+        build_py.run(self)
+
+        # Continue usual build steps
+        # run pytest for libyang python APIs
+        self.pytest_args = []
+        errno = pytest.main(self.pytest_args)
+        if (errno):
+            exit(errno)
+
+setup(
+    cmdclass={
+        'build_py': pkgBuild,
+    },
+    author="lnos-coders",
+    author_email='lnos-coders@linkedin.com',
+    python_requires='>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*',
+    classifiers=[
+        'Development Status :: 2 - Pre-Alpha',
+        'Intended Audience :: Developers',
+        'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
+        'Natural Language :: English',
+        "Programming Language :: Python :: 2",
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
+    ],
+    description="Package contains YANG models for sonic.",
+    install_requires=install_requirements,
+    tests_require = test_requirements,
+    license="GNU General Public License v3",
+    long_description=readme + '\n\n',
+    include_package_data=True,
+    keywords='sonic_yang_mgmt',
+    name='sonic_yang_mgmt',
+     py_modules=['sonic_yang'],
+    packages=find_packages(),
+    setup_requires=setup_requirements,
+    version='1.0',
+    zip_safe=False,
+)