locale: Allow disabling locale configuration

roles/locale/defaults/main.yaml

@@ -1,4 +1,7 @@
 ---
+locale_package: []
+locale_gen: true
+lcocale_configure: true
 
 gen_locales:
   - en_US.UTF-8

roles/locale/tasks/main.yaml

@@ -1,21 +1,21 @@
 ---
-
 - name: Include variables for os family {{ ansible_os_family }}
   ansible.builtin.include_vars: "{{ ansible_os_family }}.yml"
 
 - name: Install locales package
   ansible.builtin.package:
     name: "{{ locale_package }}"
-  when: locale_package is defined
+  when: locale_package | length > 0
 
 - name: Generate locales
   community.general.locale_gen:
     name: "{{ item }}"
   loop: "{{ gen_locales }}"
-  when: locale_gen | default('true')
+  when: locale_gen
 
 - name: Put default locale config in place
   ansible.builtin.template:
     src: locale.j2
     dest: "{{ locale_config }}"
     mode: '0644'
+  when: locale_configure

roles/locale/vars/Archlinux.yaml

@@ -1,3 +1,2 @@
 ---
-
 locale_config: /etc/locale.conf

roles/locale/vars/Debian.yaml

@@ -1,4 +1,3 @@
 ---
-
 locale_package: locales
 locale_config: /etc/default/locale

roles/locale/vars/RedHat.yaml

@@ -1,4 +1,3 @@
 ---
-
 locale_config: /etc/locale.conf
 locale_gen: false