71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
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# (c) 2013, Serge van Ginderachter <serge@vanginderachter.be>
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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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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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from ansible.errors import *
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from ansible.plugins.lookup import LookupBase
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from ansible.utils.listify import listify_lookup_plugin_terms
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class LookupModule(LookupBase):
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def _check_list_of_one_list(self, term):
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# make sure term is not a list of one (list of one..) item
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# return the final non list item if so
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if isinstance(term,list) and len(term) == 1:
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term = term[0]
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if isinstance(term,list):
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term = self._check_list_of_one_list(term)
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return term
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def _do_flatten(self, terms, variables):
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ret = []
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for term in terms:
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term = self._check_list_of_one_list(term)
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if term == 'None' or term == 'null':
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# ignore undefined items
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break
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if isinstance(term, basestring):
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# convert a variable to a list
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term2 = listify_lookup_plugin_terms(term, variables, loader=self._loader)
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# but avoid converting a plain string to a list of one string
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if term2 != [ term ]:
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term = term2
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if isinstance(term, list):
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# if it's a list, check recursively for items that are a list
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term = self._do_flatten(term, variables)
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ret.extend(term)
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else:
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ret.append(term)
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return ret
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def run(self, terms, variables, **kwargs):
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if not isinstance(terms, list):
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raise AnsibleError("with_flattened expects a list")
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return self._do_flatten(terms, variables)
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