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52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
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# (c) 2017 Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = """
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lookup: indexed_items
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author: Michael DeHaan <michael.dehaan@gmail.com>
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version_added: "1.3"
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short_description: rewrites lists to return 'indexed items'
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description:
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- use this lookup if you want to loop over an array and also get the numeric index of where you are in the array as you go
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- any list given will be transformed with each resulting element having the it's previous position in item.0 and its value in item.1
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options:
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_terms:
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description: list of items
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required: True
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"""
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EXAMPLES = """
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- name: indexed loop demo
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debug:
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msg: "at array position {{ item.0 }} there is a value {{ item.1 }}"
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with_indexed_items:
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- "{{ some_list }}"
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"""
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RETURN = """
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_raw:
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description:
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- list with each item.0 giving you the position and item.1 the value
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type: list
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"""
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from ansible.errors import AnsibleError
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from ansible.plugins.lookup import LookupBase
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class LookupModule(LookupBase):
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def __init__(self, basedir=None, **kwargs):
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self.basedir = basedir
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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_indexed_items expects a list")
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items = self._flatten(terms)
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return list(zip(range(len(items)), items))
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