postgresql/tasks/locale.yaml

- name: Install glibc-all-langpacks for RedHat
  dnf:
    name: glibc-all-langpacks
    state: present
    update_cache: true
  when: ansible_facts['os_family'] == 'RedHat'

- name: Install locales-all for Debian
  apt:
    name: locales-all
    state: present
    update_cache: true
  when: ansible_distribution_file_variety == 'Debian'

- name: Check if locale exists
  shell: "locale -a | grep -i {{ postgresql_system_locale | regex_replace('-', '') | quote }}"
  register: found_locale
  changed_when: false
  failed_when: false

- name: Create locale
  command: "localedef -i {{ postgresql_system_locale | regex_replace('(.*)\\..*', '\\1') | quote }} -f {{ postgresql_system_locale | regex_replace('.*\\.(.*)', '\\1') | quote }} {{ postgresql_system_locale | quote }}"
  when: not ansible_check_mode and found_locale.rc != 0

- name: Check if language exists
  shell: "locale -a | grep -i {{ postgresql_system_language | regex_replace('-', '') | quote }}"
  register: found_language
  changed_when: false
  failed_when: false

- name: Create language
  command: "localedef -i {{ postgresql_system_language | regex_replace('(.*)\\..*', '\\1') | quote }} -f {{ postgresql_system_language | regex_replace('.*\\.(.*)', '\\1') | quote }} {{ postgresql_system_language | quote }}"
  when: not ansible_check_mode and found_language.rc != 0

- name: Get current locale and language configuration
  command: localectl status
  register: locale_status
  changed_when: false

- name: Parse 'LANG' from current locale and language configuration
  set_fact:
    locale_lang: "{{ locale_status.stdout | regex_search('LANG=([^\n]+)', '\\1') | first }}"

- name: Parse 'LANGUAGE' from current locale and language configuration
  set_fact:
    locale_language: "{{ locale_status.stdout | regex_search('LANGUAGE=([^\n]+)', '\\1') | default([locale_lang], true) | first }}"

- name: Configure locale to '{{ postgresql_system_locale }}' and language to '{{ postgresql_system_language }}'
  command: localectl set-locale LANG={{ postgresql_system_locale }} LANGUAGE={{ postgresql_system_language }}
  changed_when: locale_lang != postgresql_system_locale or locale_language != postgresql_system_language