vFW and vDNS support added to azure-plugin

[multicloud/azure.git] / azure / aria / aria-extension-cloudify / src / aria / aria / utils / process.py

diff --git a/azure/aria/aria-extension-cloudify/src/aria/aria/utils/process.py b/azure/aria/aria-extension-cloudify/src/aria/aria/utils/process.py
new file mode 100644 (file)
index 0000000..ec4a72d
--- /dev/null
+++ b/azure/aria/aria-extension-cloudify/src/aria/aria/utils/process.py
@@ -0,0 +1,51 @@
+# 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.
+
+"""
+Process utilities.
+"""
+
+import os
+
+
+def append_to_path(*args, **kwargs):
+    """
+    Appends one or more paths to the system path of an environment.
+    The environment will be that of the current process unless another is passed using the
+    'env' keyword argument.
+    :param args: paths to append
+    :param kwargs: 'env' may be used to pass a custom environment to use
+    """
+    _append_to_path('PATH', *args, **kwargs)
+
+
+def append_to_pythonpath(*args, **kwargs):
+    """
+    Appends one or more paths to the python path of an environment.
+    The environment will be that of the current process unless another is passed using the
+    'env' keyword argument.
+    :param args: paths to append
+    :param kwargs: 'env' may be used to pass a custom environment to use
+    """
+    _append_to_path('PYTHONPATH', *args, **kwargs)
+
+
+def _append_to_path(path, *args, **kwargs):
+    env = kwargs.get('env') or os.environ
+    env[path] = '{0}{1}{2}'.format(
+        os.pathsep.join(args),
+        os.pathsep,
+        env.get(path, '')
+    )