Github user ran-z commented on a diff in the pull request:
https://github.com/apache/incubator-ariatosca/pull/97#discussion_r111399347
--- Diff: aria/cli/service_template_utils.py ---
@@ -0,0 +1,140 @@
+# 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
+from urlparse import urlparse
+
+from . import csar
+from . import utils
+from .exceptions import AriaCliError
+from .constants import SAMPLE_SERVICE_TEMPLATE_FILENAME
+from ..utils import archive as archive_utils
+
+
+def get(source,
service_template_filename=SAMPLE_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 archive:
+ extract it locally and return path service template file
+ - local yaml file: return the file
+ - URL:
+ - return it (download=False)
+ - download and get service template from downloaded file
(download=True)
+ - github repo:
+ - map it to a URL and return it (download=False)
+ - download and get service template from downloaded file
(download=True)
+
+ Supported archive types are: csar, zip, tar, tar.gz and tar.bz2
+
+ :param source: Path/URL/github repo to archive/service-template file
+ :type source: str
+ :param service_template_filename: Path to service template (if source
is an archive file)
+ :type service_template_filename: str
+ :param download: Download service template file if source is
URL/github repo
+ :type download: bool
+ :return: Path to file (if archive/service-template file passed) or url
+ :rtype: str
+
+ """
+ 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 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: str
+ :param service_template_filename: Path to service template file
relative to archive
+ :type service_template_filename: str
+ :return: Absolute path to service template file
+ :rtype: str
+
+ """
+ if csar.is_csar_archive(archive):
+ service_template_file = _extract_csar_archive(archive)
+ else:
+ extract_directory = archive_utils.extract_archive(archive)(archive)
--- End diff --
:+1:
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