mirror of https://github.com/ansible/ansible.git
Mv AnsibleFactCollector back to module_utils (#26150)
It was in lib/ansible/modules/system/setup.py since it was the only thing using it, but move it back to module_utils and add a ansible_collector.get_ansible_collector() to build a facts collector just like the one used by setup.py mv test_setup.py -> test_ansible_collector.py All the code it was testing is now in ansible_collector rm code to create 'ansible_facts' subkey from namespace Just leave it up to the caller to do, and just return a flat dictionary from AnsibleFactCollector.collect()pull/21249/merge
Adrian Likins
7 years ago
committed by
GitHub
parent
9f02bb02bf
commit
0fc0b6f059
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import fnmatch
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import sys
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from ansible.module_utils.facts import timeout
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from ansible.module_utils.facts import collector
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class AnsibleFactCollector(collector.BaseFactCollector):
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'''A FactCollector that returns results under 'ansible_facts' top level key.
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If a namespace if provided, facts will be collected under that namespace.
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For ex, a ansible.module_utils.facts.namespace.PrefixFactNamespace(prefix='ansible_')
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Has a 'from_gather_subset() constructor that populates collectors based on a
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gather_subset specifier.'''
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def __init__(self, collectors=None, namespace=None, filter_spec=None):
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super(AnsibleFactCollector, self).__init__(collectors=collectors,
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namespace=namespace)
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self.filter_spec = filter_spec
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def _filter(self, facts_dict, filter_spec):
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# assume a filter_spec='' is equilv to filter_spec='*'
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if not filter_spec or filter_spec == '*':
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return facts_dict
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return [(x, y) for x, y in facts_dict.items() if fnmatch.fnmatch(x, filter_spec)]
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def collect(self, module=None, collected_facts=None):
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collected_facts = collected_facts or {}
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facts_dict = {}
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for collector_obj in self.collectors:
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info_dict = {}
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# shallow copy of the accumulated collected facts to pass to each collector
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# for reference.
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collected_facts.update(facts_dict.copy())
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try:
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# Note: this collects with namespaces, so collected_facts also includes namespaces
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info_dict = collector_obj.collect_with_namespace(module=module,
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collected_facts=collected_facts)
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except Exception as e:
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sys.stderr.write(repr(e))
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sys.stderr.write('\n')
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# NOTE: If we want complicated fact dict merging, this is where it would hook in
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facts_dict.update(self._filter(info_dict, self.filter_spec))
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return facts_dict
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class CollectorMetaDataCollector(collector.BaseFactCollector):
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'''Collector that provides a facts with the gather_subset metadata.'''
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name = 'gather_subset'
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_fact_ids = set([])
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def __init__(self, collectors=None, namespace=None, gather_subset=None, module_setup=None):
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super(CollectorMetaDataCollector, self).__init__(collectors, namespace)
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self.gather_subset = gather_subset
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self.module_setup = module_setup
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def collect(self, module=None, collected_facts=None):
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meta_facts = {'gather_subset': self.gather_subset}
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if self.module_setup:
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meta_facts['module_setup'] = self.module_setup
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return meta_facts
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def get_ansible_collector(all_collector_classes,
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namespace=None,
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filter_spec=None,
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gather_subset=None,
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gather_timeout=None,
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minimal_gather_subset=None):
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filter_spec = filter_spec or '*'
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gather_subset = gather_subset or ['all']
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gather_timeout = gather_timeout or timeout.DEFAULT_GATHER_TIMEOUT
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minimal_gather_subset = minimal_gather_subset or frozenset()
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collector_classes = \
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collector.collector_classes_from_gather_subset(
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all_collector_classes=all_collector_classes,
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minimal_gather_subset=minimal_gather_subset,
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gather_subset=gather_subset,
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gather_timeout=gather_timeout)
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collectors = []
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for collector_class in collector_classes:
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collector_obj = collector_class(namespace=namespace)
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collectors.append(collector_obj)
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# Add a collector that knows what gather_subset we used so it it can provide a fact
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collector_meta_data_collector = \
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CollectorMetaDataCollector(gather_subset=gather_subset,
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module_setup=True)
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collectors.append(collector_meta_data_collector)
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fact_collector = \
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AnsibleFactCollector(collectors=collectors,
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filter_spec=filter_spec,
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namespace=namespace)
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return fact_collector
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