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Feature filter remove_keys (#8443)
* Add filter remove_keys. * Add filter remove_keys integration test, fragment, and maintainer. * Update with plugins/plugin_utils/keys_filter.py * Update according PR #8456 * Update maintainers. * Fix typo in return doc. * Remove local keys_filter.py. Then rebase. * Add local keys_filter.py * Update plugins/filter/remove_keys.py Co-authored-by: Felix Fontein <felix@fontein.de> * Update plugins/filter/remove_keys.py Co-authored-by: Felix Fontein <felix@fontein.de> --------- Co-authored-by: Felix Fontein <felix@fontein.de>
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2
.github/BOTMETA.yml
vendored
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.github/BOTMETA.yml
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@ -172,6 +172,8 @@ files:
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$filters/lists_union.yml:
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maintainers: cfiehe
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$filters/random_mac.py: {}
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$filters/remove_keys.py:
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maintainers: vbotka
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$filters/time.py:
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maintainers: resmo
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$filters/to_days.yml:
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138
plugins/filter/remove_keys.py
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138
plugins/filter/remove_keys.py
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# -*- coding: utf-8 -*-
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# Copyright (c) 2024 Vladimir Botka <vbotka@gmail.com>
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# Copyright (c) 2024 Felix Fontein <felix@fontein.de>
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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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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = '''
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name: remove_keys
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short_description: Remove specific keys from dictionaries in a list
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version_added: "9.1.0"
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author:
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- Vladimir Botka (@vbotka)
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- Felix Fontein (@felixfontein)
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description: This filter removes only specified keys from a provided list of dictionaries.
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options:
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_input:
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description:
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- A list of dictionaries.
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- Top level keys must be strings.
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type: list
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elements: dictionary
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required: true
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target:
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description:
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- A single key or key pattern to remove, or a list of keys or keys patterns to remove.
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- If O(matching_parameter=regex) there must be exactly one pattern provided.
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type: raw
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required: true
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matching_parameter:
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description: Specify the matching option of target keys.
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type: str
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default: equal
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choices:
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equal: Matches keys of exactly one of the O(target) items.
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starts_with: Matches keys that start with one of the O(target) items.
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ends_with: Matches keys that end with one of the O(target) items.
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regex:
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- Matches keys that match the regular expresion provided in O(target).
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- In this case, O(target) must be a regex string or a list with single regex string.
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'''
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EXAMPLES = '''
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l:
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- {k0_x0: A0, k1_x1: B0, k2_x2: [C0], k3_x3: foo}
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- {k0_x0: A1, k1_x1: B1, k2_x2: [C1], k3_x3: bar}
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# 1) By default match keys that equal any of the items in the target.
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t: [k0_x0, k1_x1]
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r: "{{ l | community.general.remove_keys(target=t) }}"
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# 2) Match keys that start with any of the items in the target.
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t: [k0, k1]
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r: "{{ l | community.general.remove_keys(target=t, matching_parameter='starts_with') }}"
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# 3) Match keys that end with any of the items in target.
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t: [x0, x1]
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r: "{{ l | community.general.remove_keys(target=t, matching_parameter='ends_with') }}"
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# 4) Match keys by the regex.
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t: ['^.*[01]_x.*$']
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r: "{{ l | community.general.remove_keys(target=t, matching_parameter='regex') }}"
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# 5) Match keys by the regex.
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t: '^.*[01]_x.*$'
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r: "{{ l | community.general.remove_keys(target=t, matching_parameter='regex') }}"
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# The results of above examples 1-5 are all the same.
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r:
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- {k2_x2: [C0], k3_x3: foo}
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- {k2_x2: [C1], k3_x3: bar}
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# 6) By default match keys that equal the target.
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t: k0_x0
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r: "{{ l | community.general.remove_keys(target=t) }}"
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# 7) Match keys that start with the target.
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t: k0
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r: "{{ l | community.general.remove_keys(target=t, matching_parameter='starts_with') }}"
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# 8) Match keys that end with the target.
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t: x0
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r: "{{ l | community.general.remove_keys(target=t, matching_parameter='ends_with') }}"
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# 9) Match keys by the regex.
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t: '^.*0_x.*$'
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r: "{{ l | community.general.remove_keys(target=t, matching_parameter='regex') }}"
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# The results of above examples 6-9 are all the same.
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r:
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- {k1_x1: B0, k2_x2: [C0], k3_x3: foo}
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- {k1_x1: B1, k2_x2: [C1], k3_x3: bar}
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'''
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RETURN = '''
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_value:
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description: The list of dictionaries with selected keys removed.
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type: list
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elements: dictionary
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'''
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from ansible_collections.community.general.plugins.plugin_utils.keys_filter import (
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_keys_filter_params,
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_keys_filter_target_str)
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def remove_keys(data, target=None, matching_parameter='equal'):
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"""remove specific keys from dictionaries in a list"""
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# test parameters
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_keys_filter_params(data, target, matching_parameter)
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# test and transform target
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tt = _keys_filter_target_str(target, matching_parameter)
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if matching_parameter == 'equal':
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def keep_key(key):
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return key not in tt
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elif matching_parameter == 'starts_with':
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def keep_key(key):
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return not key.startswith(tt)
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elif matching_parameter == 'ends_with':
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def keep_key(key):
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return not key.endswith(tt)
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elif matching_parameter == 'regex':
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def keep_key(key):
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return tt.match(key) is None
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return [dict((k, v) for k, v in d.items() if keep_key(k)) for d in data]
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class FilterModule(object):
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def filters(self):
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return {
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'remove_keys': remove_keys,
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}
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5
tests/integration/targets/filter_remove_keys/aliases
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5
tests/integration/targets/filter_remove_keys/aliases
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# Copyright (c) Ansible Project
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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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azp/posix/2
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---
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# Copyright (c) Ansible Project
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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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- name: Test remove_keys
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import_tasks: remove_keys.yml
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---
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# Copyright (c) Ansible Project
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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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- name: Debug ansible_version
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ansible.builtin.debug:
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var: ansible_version
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when: not quite_test | d(true) | bool
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tags: ansible_version
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- name: Test remove keys equal (default)
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ansible.builtin.assert:
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that:
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- (rr | difference(result1) | length) == 0
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success_msg: |
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[OK] result:
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{{ rr | to_yaml }}
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fail_msg: |
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[ERR] result:
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{{ rr | to_yaml }}
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quiet: "{{ quiet_test | d(true) | bool }}"
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vars:
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rr: "{{ list1 | community.general.remove_keys(target=tt) }}"
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tt: [k0_x0, k1_x1]
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tags: equal_default
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- name: Test remove keys regex string
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ansible.builtin.assert:
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that:
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- (rr | difference(result1) | length) == 0
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success_msg: |
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[OK] result:
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{{ rr | to_yaml }}
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fail_msg: |
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[ERR] result:
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{{ rr | to_yaml }}
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quiet: "{{ quiet_test | d(true) | bool }}"
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vars:
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rr: "{{ list1 | community.general.remove_keys(target=tt, matching_parameter=mp) }}"
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mp: regex
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tt: '^.*[01]_x.*$'
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tags: regex_string
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- name: Test remove keys targets1
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ansible.builtin.assert:
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that:
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- (rr | difference(result1) | length) == 0
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success_msg: |
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[OK] result:
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{{ rr | to_yaml }}
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fail_msg: |
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[ERR] result:
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{{ rr | to_yaml }}
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quiet: "{{ quiet_test | d(true) | bool }}"
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loop: "{{ targets1 }}"
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loop_control:
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label: "{{ item.mp }}: {{ item.tt }}"
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vars:
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rr: "{{ list1 | community.general.remove_keys(target=item.tt, matching_parameter=item.mp) }}"
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tags: targets1
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- name: Test remove keys targets2
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ansible.builtin.assert:
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that:
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- (rr | difference(result2) | length) == 0
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success_msg: |
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[OK] result:
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{{ rr | to_yaml }}
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fail_msg: |
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[ERR] result:
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{{ rr | to_yaml }}
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quiet: "{{ quiet_test | d(true) | bool }}"
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loop: "{{ targets2 }}"
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loop_control:
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label: "{{ item.mp }}: {{ item.tt }}"
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vars:
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rr: "{{ list2 | community.general.remove_keys(target=item.tt, matching_parameter=item.mp) }}"
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tags: targets1
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33
tests/integration/targets/filter_remove_keys/vars/main.yml
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33
tests/integration/targets/filter_remove_keys/vars/main.yml
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---
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# Copyright (c) Ansible Project
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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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targets1:
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- {mp: equal, tt: [k0_x0, k1_x1]}
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- {mp: starts_with, tt: [k0, k1]}
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- {mp: ends_with, tt: [x0, x1]}
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- {mp: regex, tt: ['^.*[01]_x.*$']}
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- {mp: regex, tt: '^.*[01]_x.*$'}
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list1:
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- {k0_x0: A0, k1_x1: B0, k2_x2: [C0], k3_x3: foo}
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- {k0_x0: A1, k1_x1: B1, k2_x2: [C1], k3_x3: bar}
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result1:
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- {k2_x2: [C0], k3_x3: foo}
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- {k2_x2: [C1], k3_x3: bar}
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targets2:
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- {mp: equal, tt: k0_x0}
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- {mp: starts_with, tt: k0}
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- {mp: ends_with, tt: x0}
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- {mp: regex, tt: '^.*0_x.*$'}
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list2:
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- {k0_x0: A0, k1_x1: B0, k2_x2: [C0], k3_x3: foo}
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- {k0_x0: A1, k1_x1: B1, k2_x2: [C1], k3_x3: bar}
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result2:
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- {k1_x1: B0, k2_x2: [C0], k3_x3: foo}
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- {k1_x1: B1, k2_x2: [C1], k3_x3: bar}
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