mirror of https://github.com/ansible/ansible.git
Starting to move over lookups and fixing some bugs related to that
James Cammarata
10 years ago
parent
0823fb2cd9
commit
63c2d616e7
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# (c) 2012, Michael DeHaan <michael.dehaan@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 ansible.errors import AnsibleError
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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 __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)
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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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my_list.reverse()
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result = []
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if len(my_list) == 0:
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raise AnsibleError("with_nested requires at least one element in the nested list")
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result = my_list.pop()
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while len(my_list) > 0:
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result2 = self._combine(result, my_list.pop())
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result = result2
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new_result = []
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for x in result:
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new_result.append(self._flatten(x))
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return new_result
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@ -0,0 +1,68 @@
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# (c) 2014 Michael DeHaan, <michael@ansible.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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# 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 six import iteritems, string_types
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import re
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from ansible.template import Templar
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from ansible.template.safe_eval import safe_eval
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__all__ = ['listify_lookup_plugin_terms']
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LOOKUP_REGEX = re.compile(r'lookup\s*\(')
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def listify_lookup_plugin_terms(terms, variables):
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if isinstance(terms, basestring):
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# someone did:
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# with_items: alist
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# OR
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# with_items: {{ alist }}
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stripped = terms.strip()
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if not (stripped.startswith('{') or stripped.startswith('[')) and \
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not stripped.startswith("/") and \
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not stripped.startswith('set([') and \
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not LOOKUP_REGEX.search(terms):
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# if not already a list, get ready to evaluate with Jinja2
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# not sure why the "/" is in above code :)
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try:
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templar = Templar(variables=variables)
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new_terms = templar.template("{{ %s }}" % terms)
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if isinstance(new_terms, basestring) and "{{" in new_terms:
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pass
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else:
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terms = new_terms
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except:
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pass
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if '{' in terms or '[' in terms:
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# Jinja2 already evaluated a variable to a list.
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# Jinja2-ified list needs to be converted back to a real type
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# TODO: something a bit less heavy than eval
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return safe_eval(terms)
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if isinstance(terms, basestring):
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terms = [ terms ]
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return terms
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@ -0,0 +1,11 @@
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- hosts: localhost
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connection: local
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vars:
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my_list:
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- a
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- b
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- c
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gather_facts: no
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tasks:
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- debug: msg="item is {{item}}"
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with_items: my_list
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@ -0,0 +1,13 @@
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- hosts: localhost
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connection: local
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gather_facts: no
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vars:
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users:
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- foo
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- bar
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- bam
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tasks:
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- debug: msg="item.0={{ item[0] }} item.1={{ item[1] }}"
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with_nested:
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- users
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- [ 'clientdb', 'employeedb', 'providerdb' ]
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