Add slapos.extension.shared.

CHANGELOG.rst

+Changes
+=======
+
+1.0 (2018-08-21)
+----------------
+
+* Initial release.

MANIFEST.in

+include *.rst

README.rst

+Buildout Extension for SlapOS's shared feature
+================================================
+
+slapos.extension.shared is a buildout extension that creates .shared
+file in a software release directory if shared-parts is defined in buildout
+section. .shared file is used to know if a software release is made with
+shared feature.
+
+Usage
+-----
+
+Add ``slapos.extension.shared`` in ``[buildout]`` section's ``extensions`` option like :
+
+::
+
+  [buildout]
+  extensions = slapos.extension.shared
+

setup.py

+from setuptools import setup, find_packages
+import os
+
+version = '1.0'
+name = 'slapos.extension.shared'
+
+def read(*rnames):
+    return open(os.path.join(os.path.dirname(__file__), *rnames)).read()
+
+setup(
+    name=name,
+    version=version,
+    description="zc.buildout extension for SlapOS's shared feature.",
+    long_description=(
+        read('README.rst')
+        + '\n' +
+        read('CHANGELOG.rst')
+        + '\n' +
+        'Download\n'
+        '***********************\n'
+    ),
+    classifiers=[
+        'Programming Language :: Python',
+    ],
+    keywords='slapos shared',
+    author='Yusei Tahara',
+    author_email='yusei@nexedi.com',
+    url='https://lab.nexedi.com/nexedi/slapos.extension.shared',
+    license='GPLv3',
+    packages=find_packages(exclude=['ez_setup']),
+    namespace_packages=['slapos', 'slapos.extension'],
+    include_package_data=True,
+    zip_safe=False,
+    install_requires=[
+        'zc.buildout',
+    ],
+    entry_points = { 
+        'zc.buildout.unloadextension': [
+             'default = slapos.extension.shared:finish',
+             ],
+        },
+)

slapos/__init__.py

+# See http://peak.telecommunity.com/DevCenter/setuptools#namespace-packages
+try:
+    __import__('pkg_resources').declare_namespace(__name__)
+except ImportError:
+    from pkgutil import extend_path
+    __path__ = extend_path(__path__, __name__)

slapos/extension/__init__.py

+# See http://peak.telecommunity.com/DevCenter/setuptools#namespace-packages
+try:
+    __import__('pkg_resources').declare_namespace(__name__)
+except ImportError:
+    from pkgutil import extend_path
+    __path__ = extend_path(__path__, __name__)

slapos/extension/shared/__init__.py

+import os
+
+def finish(buildout):
+  if buildout['buildout'].get('shared-parts'):
+    open(os.path.join(buildout['buildout']['directory'], '.shared'), 'w').close()