vFW and vDNS support added to azure-plugin

[multicloud/azure.git] / azure / aria / aria-extension-cloudify / src / aria / aria / cli / service_template_utils.py

diff --git a/azure/aria/aria-extension-cloudify/src/aria/aria/cli/service_template_utils.py b/azure/aria/aria-extension-cloudify/src/aria/aria/cli/service_template_utils.py
new file mode 100644 (file)
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+++ b/azure/aria/aria-extension-cloudify/src/aria/aria/cli/service_template_utils.py
@@ -0,0 +1,129 @@
+# 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.
+
+"""
+Loading mechanism for service templates.
+"""
+
+import os
+from urlparse import urlparse
+
+from . import csar
+from . import utils
+from .exceptions import AriaCliError
+from ..utils import archive as archive_utils
+
+
+def get(source, service_template_filename):
+    """
+    Get a source and return a path to the main service template file
+
+    The behavior based on then source argument content is:
+
+    * local ``.yaml`` file: return the file
+    * local archive (``.csar``, ``.zip``, ``.tar``, ``.tar.gz``, and ``.tar.bz2``): extract it
+      locally and return path service template file
+    * URL: download and get service template from downloaded archive
+    * GitHub repo: download and get service template from downloaded archive
+
+    :param source: path/URL/GitHub repo to archive/service-template file
+    :type source: basestring
+    :param service_template_filename: path to service template if source is a non-CSAR archive
+     with CSAR archives, this is read from the metadata file)
+    :type service_template_filename: basestring
+    :return: path to main service template file
+    :rtype: basestring
+    """
+    if urlparse(source).scheme:
+        downloaded_file = utils.download_file(source)
+        return _get_service_template_file_from_archive(
+            downloaded_file, service_template_filename)
+    elif os.path.isfile(source):
+        if _is_archive(source):
+            return _get_service_template_file_from_archive(source, service_template_filename)
+        else:
+            # Maybe check if yaml.
+            return os.path.abspath(source)
+    elif len(source.split('/')) == 2:
+        url = _map_to_github_url(source)
+        downloaded_file = utils.download_file(url)
+        return _get_service_template_file_from_archive(
+            downloaded_file, service_template_filename)
+    else:
+        raise AriaCliError(
+            'You must provide either a path to a local file, a remote URL '
+            'or a GitHub `organization/repository[:tag/branch]`')
+
+
+def _get_service_template_file_from_archive(archive, service_template_filename):
+    """
+    Extract archive to temporary location and get path to service template file.
+
+    :param archive: path to archive file
+    :type archive: basestring
+    :param service_template_filename: path to service template file relative to archive
+    :type service_template_filename: basestring
+    :return: absolute path to service template file
+    :rtype: basestring
+
+    """
+    if csar.is_csar_archive(archive):
+        service_template_file = _extract_csar_archive(archive)
+    else:
+        extract_directory = archive_utils.extract_archive(archive)
+        print extract_directory
+        service_template_dir = os.path.join(
+            extract_directory,
+            os.listdir(extract_directory)[0],
+        )
+        print service_template_dir
+        service_template_file = os.path.join(service_template_dir, service_template_filename)
+        print service_template_file
+        print service_template_filename
+
+    if not os.path.isfile(service_template_file):
+        raise AriaCliError(
+            'Could not find `{0}`. Please provide the name of the main '
+            'service template file by using the `-n/--service-template-filename` flag'
+            .format(service_template_filename))
+    return service_template_file
+
+
+def _map_to_github_url(source):
+    """
+    Returns a path to a downloaded GitHub archive.
+
+    :param source: GitHub repo: ``org/repo[:tag/branch]``
+    :type source: basestring
+    :return: URL to the archive file for the given repo in GitHub
+    :rtype: basestring
+
+    """
+    source_parts = source.split(':', 1)
+    repo = source_parts[0]
+    tag = source_parts[1] if len(source_parts) == 2 else 'master'
+    url = 'https://github.com/{0}/archive/{1}.tar.gz'.format(repo, tag)
+    return url
+
+
+def _is_archive(source):
+    return archive_utils.is_archive(source) or csar.is_csar_archive(source)
+
+
+def _extract_csar_archive(archive):
+    reader = csar.read(source=archive)
+    main_service_template_file_name = os.path.basename(reader.entry_definitions)
+    return os.path.join(reader.destination,
+                        main_service_template_file_name)