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# Licensed to the StackStorm, Inc ('StackStorm') under one or more |
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# contributor license agreements. See the NOTICE file distributed with |
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# this work for additional information regarding copyright ownership. |
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# The ASF licenses this file to You under the Apache License, Version 2.0 |
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# (the "License"); you may not use this file except in compliance with |
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# the License. You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import itertools |
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import requests |
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import six |
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from oslo_config import cfg |
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from st2common.persistence.pack import Pack |
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__all__ = [ |
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'get_pack_by_ref', |
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'fetch_pack_index', |
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'search_pack_index' |
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] |
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EXCLUDE_FIELDS = [ |
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"repo_url", |
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"email" |
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] |
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SEARCH_PRIORITY = [ |
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"name", |
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"keywords" |
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] |
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def get_pack_by_ref(pack_ref): |
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""" |
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Retrieve PackDB by the provided reference. |
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""" |
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pack_db = Pack.get_by_ref(pack_ref) |
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return pack_db |
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def fetch_pack_index(index_url=None): |
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""" |
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Fetch the pack indexes (either from the config or provided as an argument) |
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and return the object. |
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""" |
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if not index_url: |
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index_urls = cfg.CONF.content.index_url |
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elif isinstance(index_url, str): |
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index_urls = [index_url] |
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elif hasattr(index_url, '__iter__'): |
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index_urls = index_url |
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else: |
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raise TypeError('"index_url" should either be a string or an iterable object.') |
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result = {} |
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for index_url in index_urls: |
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result.update(requests.get(index_url).json()) |
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return result |
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def search_pack_index(query=None, pack=None, exclude=None, priority=None): |
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""" |
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Search the pack index either by pack name or by query. |
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Returns a pack object if the pack name is specified, otherwise returns |
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a list of matches for a query. |
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""" |
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if (not query and not pack) or (query and pack): |
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raise ValueError("Either a query or a pack name must be specified.") |
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if not exclude: |
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exclude = EXCLUDE_FIELDS |
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if not priority: |
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priority = SEARCH_PRIORITY |
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index = fetch_pack_index() |
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if pack: |
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return index.get(pack, None) |
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matches = [[] for _ in xrange(len(priority) + 1)] |
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for pack in six.itervalues(index): |
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for key, value in six.iteritems(pack): |
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if key not in exclude and query in value: |
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if key in priority: |
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matches[priority.index(key)].append(pack) |
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else: |
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matches[-1].append(pack) |
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break |
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return list(itertools.chain.from_iterable(matches)) |
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StackStorm /
st2
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