51 lines
1.8 KiB
Python
51 lines
1.8 KiB
Python
# (c) 2013, Bradley Young <young.bradley@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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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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from itertools import izip_longest
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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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"""
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Transpose a list of arrays:
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[1, 2, 3], [4, 5, 6] -> [1, 4], [2, 5], [3, 6]
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Replace any empty spots in 2nd array with None:
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[1, 2], [3] -> [1, 3], [2, None]
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"""
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def __lookup_variabless(self, terms, variables):
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results = []
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for x in terms:
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intermediate = listify_lookup_plugin_terms(x, variables, loader=self._loader)
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results.append(intermediate)
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return results
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def run(self, terms, variables=None, **kwargs):
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terms = self.__lookup_variabless(terms, variables)
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my_list = terms[:]
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if len(my_list) == 0:
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raise errors.AnsibleError("with_together requires at least one element in each list")
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return [self._flatten(x) for x in izip_longest(*my_list, fillvalue=None)]
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