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community.general/plugins/filter/counter.py
Felix Fontein 123c7efe5e
Move licenses to LICENSES/, run add-license.py, add LICENSES/MIT.txt (#5065)
* Move licenses to LICENSES/, run add-license.py, add LICENSES/MIT.txt.

* Replace 'Copyright:' with 'Copyright'

sed -i 's|Copyright:\(.*\)|Copyright\1|' $(rg -l 'Copyright:')

Co-authored-by: Maxwell G <gotmax@e.email>
2022-08-05 12:28:29 +02:00

66 lines
1.9 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (c) 2021, Remy Keil <remy.keil@gmail.com>
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
DOCUMENTATION = '''
name: counter
short_description: Counts hashable elements in a sequence
version_added: 4.3.0
author: Rémy Keil (@keilr)
description:
- Counts hashable elements in a sequence.
options:
_input:
description: A sequence.
type: list
elements: any
required: true
'''
EXAMPLES = '''
- name: Count occurrences
ansible.builtin.debug:
msg: >-
{{ [1, 'a', 2, 2, 'a', 'b', 'a'] | community.general.counter }}
# Produces: {1: 1, 'a': 3, 2: 2, 'b': 1}
'''
RETURN = '''
_value:
description: A dictionary with the elements of the sequence as keys, and their number of occurrences in the sequence as values.
type: dictionary
'''
from ansible.errors import AnsibleFilterError
from ansible.module_utils.common._collections_compat import Sequence
from collections import Counter
def counter(sequence):
''' Count elements in a sequence. Returns dict with count result. '''
if not isinstance(sequence, Sequence):
raise AnsibleFilterError('Argument for community.general.counter must be a sequence (string or list). %s is %s' %
(sequence, type(sequence)))
try:
result = dict(Counter(sequence))
except TypeError as e:
raise AnsibleFilterError(
"community.general.counter needs a sequence with hashable elements (int, float or str) - %s" % (e)
)
return result
class FilterModule(object):
''' Ansible counter jinja2 filters '''
def filters(self):
filters = {
'counter': counter,
}
return filters