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__pycache__	-	Open
config.py	5.75 MB	View DL Edit
csvfile.py	6.15 MB	View DL Edit
dict.py	2.2 MB	View DL Edit
env.py	2.67 MB	View DL Edit
file.py	2.93 MB	View DL Edit
fileglob.py	2.96 MB	View DL Edit
first_found.py	8.52 MB	View DL Edit
indexed_items.py	1.55 MB	View DL Edit
ini.py	7.6 MB	View DL Edit
inventory_hostnames.py	1.73 MB	View DL Edit
items.py	1.82 MB	View DL Edit
lines.py	2.16 MB	View DL Edit
list.py	1.12 MB	View DL Edit
nested.py	2.64 MB	View DL Edit
password.py	17.67 MB	View DL Edit
pipe.py	2.93 MB	View DL Edit
random_choice.py	1.54 MB	View DL Edit
sequence.py	8.96 MB	View DL Edit
subelements.py	6.18 MB	View DL Edit
template.py	6.83 MB	View DL Edit
together.py	2.11 MB	View DL Edit
unvault.py	1.93 MB	View DL Edit
url.py	8.8 MB	View DL Edit
varnames.py	2.31 MB	View DL Edit
vars.py	3.4 MB	View DL Edit
__init__.py	4.6 MB	View DL Edit

Edit file: /usr/lib/python3.9/site-packages/ansible/plugins/lookup/subelements.py

# (c) 2013, Serge van Ginderachter <serge@vanginderachter.be>
# (c) 2012-17 Ansible Project
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type

DOCUMENTATION = """
    name: subelements
    author: Serge van Ginderachter (!UNKNOWN) <serge@vanginderachter.be>
    version_added: "1.4"
    short_description: traverse nested key from a list of dictionaries
    description:
      - Subelements walks a list of hashes (aka dictionaries) and then traverses a list with a given (nested sub-)key inside of those records.
    options:
      _terms:
         description: tuple of list of dictionaries and dictionary key to extract
         required: True
      skip_missing:
        default: False
        description:
          - Lookup accepts this flag from a dictionary as optional. See Example section for more information.
          - If set to C(True), the lookup plugin will skip the lists items that do not contain the given subkey.
          - If set to C(False), the plugin will yield an error and complain about the missing subkey.
"""

EXAMPLES = """
- name: show var structure as it is needed for example to make sense
  hosts: all
  vars:
    users:
      - name: alice
        authorized:
          - /tmp/alice/onekey.pub
          - /tmp/alice/twokey.pub
        mysql:
            password: mysql-password
            hosts:
              - "%"
              - "127.0.0.1"
              - "::1"
              - "localhost"
            privs:
              - "*.*:SELECT"
              - "DB1.*:ALL"
        groups:
          - wheel
      - name: bob
        authorized:
          - /tmp/bob/id_rsa.pub
        mysql:
            password: other-mysql-password
            hosts:
              - "db1"
            privs:
              - "*.*:SELECT"
              - "DB2.*:ALL"
  tasks:
    - name: Set authorized ssh key, extracting just that data from 'users'
      ansible.posix.authorized_key:
        user: "{{ item.0.name }}"
        key: "{{ lookup('file', item.1) }}"
      with_subelements:
         - "{{ users }}"
         - authorized

- name: Setup MySQL users, given the mysql hosts and privs subkey lists
      community.mysql.mysql_user:
        name: "{{ item.0.name }}"
        password: "{{ item.0.mysql.password }}"
        host: "{{ item.1 }}"
        priv: "{{ item.0.mysql.privs | join('/') }}"
      with_subelements:
        - "{{ users }}"
        - mysql.hosts

- name: list groups for users that have them, don't error if groups key is missing
      ansible.builtin.debug: var=item
      loop: "{{ q('ansible.builtin.subelements', users, 'groups', {'skip_missing': True}) }}"
"""

RETURN = """
_list:
  description: list of subelements extracted
"""

from ansible.errors import AnsibleError
from ansible.module_utils.six import string_types
from ansible.module_utils.parsing.convert_bool import boolean
from ansible.plugins.lookup import LookupBase
from ansible.utils.listify import listify_lookup_plugin_terms

FLAGS = ('skip_missing',)

class LookupModule(LookupBase):

def run(self, terms, variables, **kwargs):

def _raise_terms_error(msg=""):
            raise AnsibleError(
                "subelements lookup expects a list of two or three items, " + msg)

terms[0] = listify_lookup_plugin_terms(terms[0], templar=self._templar)

# check lookup terms - check number of terms
        if not isinstance(terms, list) or not 2 <= len(terms) <= 3:
            _raise_terms_error()

# first term should be a list (or dict), second a string holding the subkey
        if not isinstance(terms[0], (list, dict)) or not isinstance(terms[1], string_types):
            _raise_terms_error("first a dict or a list, second a string pointing to the subkey")
        subelements = terms[1].split(".")

if isinstance(terms[0], dict):  # convert to list:
            if terms[0].get('skipped', False) is not False:
                # the registered result was completely skipped
                return []
            elementlist = []
            for key in terms[0]:
                elementlist.append(terms[0][key])
        else:
            elementlist = terms[0]

# check for optional flags in third term
        flags = {}
        if len(terms) == 3:
            flags = terms[2]
        if not isinstance(flags, dict) and not all(isinstance(key, string_types) and key in FLAGS for key in flags):
            _raise_terms_error("the optional third item must be a dict with flags %s" % FLAGS)

# build_items
        ret = []
        for item0 in elementlist:
            if not isinstance(item0, dict):
                raise AnsibleError("subelements lookup expects a dictionary, got '%s'" % item0)
            if item0.get('skipped', False) is not False:
                # this particular item is to be skipped
                continue

skip_missing = boolean(flags.get('skip_missing', False), strict=False)
            subvalue = item0
            lastsubkey = False
            sublist = []
            for subkey in subelements:
                if subkey == subelements[-1]:
                    lastsubkey = True
                if subkey not in subvalue:
                    if skip_missing:
                        continue
                    else:
                        raise AnsibleError("could not find '%s' key in iterated item '%s'" % (subkey, subvalue))
                if not lastsubkey:
                    if not isinstance(subvalue[subkey], dict):
                        if skip_missing:
                            continue
                        else:
                            raise AnsibleError("the key %s should point to a dictionary, got '%s'" % (subkey, subvalue[subkey]))
                    else:
                        subvalue = subvalue[subkey]
                else:  # lastsubkey
                    if not isinstance(subvalue[subkey], list):
                        raise AnsibleError("the key %s should point to a list, got '%s'" % (subkey, subvalue[subkey]))
                    else:
                        sublist = subvalue.pop(subkey, [])
            for item1 in sublist:
                ret.append((item0, item1))

return ret

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