def declare_extras_features(context):
LOG.debug('declaring extras for {0}'.format(context.info))
package_name = find_package_by_module(context.package)
extras = find_extras_by_package(package_name)
LOG.debug('extras for {}: {}'.format(package_name, extras))
installed_extras = [name for (name, dependencies) in extras.items()
if all_packages_installed(dependencies)]
for postfix in combine_features(installed_extras):
feature_name = '{}:{}'.format(package_name, postfix)
LOG.debug('declaring feature {}'.format(feature_name))
context.provideFeature(feature_name)
def test_not_all_packages_installed(self):
self.assertFalse(all_packages_installed(['ftw.autofeature',
'django']))
def test_all_packages_installed(self):
self.assertTrue(all_packages_installed(['ftw.autofeature',
'unittest2']))
