Add support for installing packages on Arch Linux

tasks/main.yml

@@ -3,12 +3,15 @@
 - include_tasks: variables.yml
 
 # Setup/install tasks.
-- include_tasks: setup-RedHat.yml
-  when: ansible_os_family == 'RedHat'
+- include_tasks: setup-Archlinux.yml
+  when: ansible_os_family == 'Archlinux'
 
 - include_tasks: setup-Debian.yml
   when: ansible_os_family == 'Debian'
 
+- include_tasks: setup-RedHat.yml
+  when: ansible_os_family == 'RedHat'
+
 - include_tasks: initialize.yml
 - include_tasks: configure.yml
 

tasks/setup-Archlinux.yml

@@ -0,0 +1,21 @@
+---
+- name: Ensure PostgreSQL Python libraries are installed.
+  pacman:
+    name: "{{ postgresql_python_library }}"
+    state: present
+
+- name: Ensure PostgreSQL packages are installed.
+  pacman:
+    name: "{{ postgresql_packages }}"
+    state: present
+
+- name: Ensure all configured locales are present.
+  locale_gen: "name={{ item }} state=present"
+  with_items: "{{ postgresql_locales }}"
+  register: locale_gen_result
+
+- name: Force-restart PostgreSQL after new locales are generated.
+  systemd:
+    name: "{{ postgresql_daemon }}"
+    state: restarted
+  when: locale_gen_result.changed