64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
# Copyright (c) Max Gautier <mg@max.gautier.name>
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# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
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# SPDX-License-Identifier: GPL-3.0-or-later
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DOCUMENTATION = r"""
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name: accumulate
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short_description: Produce a list of accumulated sums of the input list contents
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version_added: 10.1.0
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author: Max Gautier (@VannTen)
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description:
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- Passthrough to the L(Python itertools.accumulate function,https://docs.python.org/3/library/itertools.html#itertools.accumulate).
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- Transforms an input list into the cumulative list of results from applying addition to the elements of the input list.
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- Addition means the default Python implementation of C(+) for input list elements type.
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options:
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_input:
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description: A list.
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type: list
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elements: any
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required: true
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"""
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RETURN = r"""
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_value:
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description: A list of cumulated sums of the elements of the input list.
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type: list
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elements: any
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"""
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EXAMPLES = r"""
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- name: Enumerate parent directories of some path
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ansible.builtin.debug:
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var: >
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"/some/path/to/my/file"
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| split('/') | map('split', '/')
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| community.general.accumulate | map('join', '/')
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# Produces: ['', '/some', '/some/path', '/some/path/to', '/some/path/to/my', '/some/path/to/my/file']
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- name: Growing string
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ansible.builtin.debug:
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var: "'abc' | community.general.accumulate"
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# Produces ['a', 'ab', 'abc']
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"""
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from itertools import accumulate
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from collections.abc import Sequence
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from ansible.errors import AnsibleFilterError
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def list_accumulate(sequence):
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if not isinstance(sequence, Sequence):
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raise AnsibleFilterError('Invalid value type (%s) for accumulate (%r)' %
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(type(sequence), sequence))
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return accumulate(sequence)
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class FilterModule(object):
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def filters(self):
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return {
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'accumulate': list_accumulate,
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}
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