Github user dankilman commented on a diff in the pull request:
https://github.com/apache/incubator-ariatosca/pull/34#discussion_r92946519
--- Diff: aria/utils/plugin.py ---
@@ -0,0 +1,86 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+
+import os
+import tempfile
+import subprocess
+import sys
+from datetime import datetime
+
+import wagon
+
+
+def create(source, destination_dir):
+ return wagon.create(source=source,
archive_destination_dir=destination_dir)
+
+
+class PluginManager(object):
+
+ def __init__(self, model, plugins_dir):
+ self._model = model
+ self._plugins_dir = plugins_dir
+
+ def install(self, source):
+ metadata = wagon.show(source)
+ cls = self._model.plugin.model_cls
+ plugin = cls(
+ archive_name=metadata['archive_name'],
+ supported_platform=metadata['supported_platform'],
+ supported_py_versions=metadata['supported_python_versions'],
+ # Remove suffix colon after upgrading wagon to > 0.5.0
+
distribution=metadata['build_server_os_properties']['distribution:'],
+
distribution_release=metadata['build_server_os_properties']['distribution_version'],
+
distribution_version=metadata['build_server_os_properties']['distribution_release'],
+ package_name=metadata['package_name'],
+ package_version=metadata['package_version'],
+ package_source=metadata['package_source'],
+ wheels=metadata['wheels'],
+ uploaded_at=datetime.now()
+ )
+ if len(self._model.plugin.list(filters={'package_name':
plugin.package_name,
+ 'package_version':
plugin.package_version})):
+ raise RuntimeError('Plugin {0}, version {1} already
exists'.format(
+ plugin.package_name, plugin.package_version))
+ self._install_wagon(source=source,
prefix=self.get_plugin_prefix(plugin))
+ self._model.plugin.put(plugin)
+ return plugin
+
+ def get_plugin_prefix(self, plugin):
+ return os.path.join(
+ self._plugins_dir,
+ '{0}-{1}'.format(plugin.package_name, plugin.package_version))
+
+ @staticmethod
+ def _install_wagon(source, prefix):
+ bin_dir = 'Scripts' if os.name == 'nt' else 'bin'
+ pip_path = os.path.join(sys.prefix, bin_dir,
+ 'pip{0}'.format('.exe' if os.name == 'nt'
else ''))
+ pip_freeze = subprocess.Popen([pip_path, 'freeze'],
stdout=subprocess.PIPE)
+ pip_freeze_output, _ = pip_freeze.communicate()
+ assert not pip_freeze.poll()
+ file_descriptor, constraint_path =
tempfile.mkstemp(prefix='constraint-', suffix='.txt')
+ os.close(file_descriptor)
+ try:
+ with open(constraint_path, 'wb') as constraint:
+ constraint.write(pip_freeze_output)
+ # TODO: test constraint
--- End diff --
remove
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