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123 lines
4.5 KiB
Python
123 lines
4.5 KiB
Python
# (c) 2012, Jan-Piet Mens <jpmens () gmail.com>
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#
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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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#
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# Make coding more python3-ish
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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from collections import MutableMapping, MutableSet, MutableSequence
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from ansible.errors import AnsibleError, AnsibleAssertionError
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from ansible.module_utils.six import string_types
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from ansible.module_utils._text import to_native
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from ansible.parsing.plugin_docs import read_docstring
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from ansible.parsing.yaml.loader import AnsibleLoader
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try:
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from __main__ import display
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except ImportError:
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from ansible.utils.display import Display
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display = Display()
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# modules that are ok that they do not have documentation strings
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BLACKLIST = {
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'MODULE': frozenset(('async_wrapper',)),
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'CACHE': frozenset(('base',)),
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}
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def merge_fragment(target, source):
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for key, value in source.items():
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if key in target:
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# assumes both structures have same type
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if isinstance(target[key], MutableMapping):
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value.update(target[key])
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elif isinstance(target[key], MutableSet):
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value.add(target[key])
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elif isinstance(target[key], MutableSequence):
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value = sorted(frozenset(value + target[key]))
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else:
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raise Exception("Attempt to extend a documentation fragement, invalid type for %s" % key)
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target[key] = value
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def add_fragments(doc, filename, fragment_loader):
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fragments = doc.pop('extends_documentation_fragment', [])
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if isinstance(fragments, string_types):
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fragments = [fragments]
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# Allow the module to specify a var other than DOCUMENTATION
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# to pull the fragment from, using dot notation as a separator
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for fragment_slug in fragments:
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fragment_slug = fragment_slug.lower()
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if '.' in fragment_slug:
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fragment_name, fragment_var = fragment_slug.split('.', 1)
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fragment_var = fragment_var.upper()
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else:
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fragment_name, fragment_var = fragment_slug, 'DOCUMENTATION'
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fragment_class = fragment_loader.get(fragment_name)
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if fragment_class is None:
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raise AnsibleAssertionError('fragment_class is None')
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fragment_yaml = getattr(fragment_class, fragment_var, '{}')
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fragment = AnsibleLoader(fragment_yaml, file_name=filename).get_single_data()
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if 'notes' in fragment:
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notes = fragment.pop('notes')
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if notes:
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if 'notes' not in doc:
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doc['notes'] = []
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doc['notes'].extend(notes)
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if 'options' not in fragment:
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raise Exception("missing options in fragment (%s), possibly misformatted?: %s" % (fragment_name, filename))
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# ensure options themselves are directly merged
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if 'options' in doc:
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try:
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merge_fragment(doc['options'], fragment.pop('options'))
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except Exception as e:
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raise AnsibleError("%s options (%s) of unknown type: %s" % (to_native(e), fragment_name, filename))
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else:
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doc['options'] = fragment.pop('options')
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# merge rest of the sections
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try:
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merge_fragment(doc, fragment)
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except Exception as e:
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raise AnsibleError("%s (%s) of unknown type: %s" % (to_native(e), fragment_name, filename))
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def get_docstring(filename, fragment_loader, verbose=False, ignore_errors=False):
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"""
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DOCUMENTATION can be extended using documentation fragments loaded by the PluginLoader from the module_docs_fragments directory.
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"""
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data = read_docstring(filename, verbose=verbose, ignore_errors=ignore_errors)
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# add fragments to documentation
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if data.get('doc', False):
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add_fragments(data['doc'], filename, fragment_loader=fragment_loader)
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return data['doc'], data['plainexamples'], data['returndocs'], data['metadata']
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