community.general/plugins/filter/counter.py
Felix Fontein 8f8a0e1d7c
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Fix __future__ imports, __metaclass__ = type, and remove explicit UTF-8 encoding statement for Python files (#10886)
* Adjust all __future__ imports:

for i in $(grep -REl "__future__.*absolute_import" plugins/ tests/); do
  sed -e 's/from __future__ import .*/from __future__ import annotations/g' -i $i;
done

* Remove all UTF-8 encoding specifications for Python source files:

for i in $(grep -REl '[-][*]- coding: utf-8 -[*]-' plugins/ tests/); do
  sed -e '/^# -\*- coding: utf-8 -\*-/d' -i $i;
done

* Remove __metaclass__ = type:

for i in $(grep -REl '__metaclass__ = type' plugins/ tests/); do
  sed -e '/^__metaclass__ = type/d' -i $i;
done
2025-10-10 19:52:04 +02:00

65 lines
1.8 KiB
Python

# 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 annotations
DOCUMENTATION = r"""
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 = r"""
- 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 = r"""
_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 collections.abc 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