Improve PHP version detection on Debian-based systems

.ansible-lint

@@ -4,6 +4,7 @@ skip_list:
   - 'role-name'
 
 warn_list:
+  - jinja[spacing]
   - package-latest
   - unnamed-task
   - command-instead-of-shell

defaults/main.yaml

@@ -1,5 +1,6 @@
 ---
 php_version:
+# Undefined by default, is populated during the run
 php:
   prefix:
     config: >-

tasks/install.yaml

@@ -14,15 +14,3 @@
         map('regex_replace', '^', 'php-') |
         list + (['composer'] if php.install_composer else [])
       }}
-
-- name: Get PHP version
-  changed_when: no
-  register: php_version_full
-  check_mode: no
-  ansible.builtin.shell:
-    cmd: >-
-      php -r 'echo phpversion();' | grep -o '[0-9]\.[0-9]' | head -n1
-
-- name: Set PHP version fact
-  ansible.builtin.set_fact: 
-    php_version: "{{ php_version_full.stdout }}"

tasks/main.yaml

@@ -1,13 +1,16 @@
 ---
+- name: Set the PHP version
+  ansible.builtin.include_tasks: phpversion.yaml
+
 - name: Install PHP and extensions (Ubuntu/Debian)
   when: ansible_os_family == 'Debian'
-  ansible.builtin.import_tasks: install.yaml
+  ansible.builtin.include_tasks: install.yaml
 
 - name: Set up phpfpmtop
-  ansible.builtin.import_tasks: phpfpmtop.yaml
+  ansible.builtin.include_tasks: phpfpmtop.yaml
 
 - name: Configure PHP-FPM
-  ansible.builtin.import_tasks: phpfpm.yaml
+  ansible.builtin.include_tasks: phpfpm.yaml
 
 - name: Configure PHP
-  ansible.builtin.import_tasks: php.yaml
+  ansible.builtin.include_tasks: php.yaml

tasks/phpversion.yaml

@@ -0,0 +1,20 @@
+---
+- name: Get PHP version
+  changed_when: no
+  register: php_version_full
+  check_mode: no
+  ansible.builtin.shell:
+    cmd: >-
+      {%- if ansible_os_family == 'Debian' -%}
+      apt update &&
+      apt-cache search --names-only "^php[0-9].[0-9]$" |  awk '{print $1}'
+      {%- elif ansible_os_family == 'FreeBSD' -%}
+      # PHP is already installed on the Proserver hosts, no need to query the packages
+      php -r 'echo phpversion();' | grep -o '[0-9]\.[0-9]' | head -n1
+      {%- else -%}
+      echo "Unsupported OS" && exit 1
+      {%- endif -%}
+
+- name: Set PHP version fact
+  ansible.builtin.set_fact:
+    php_version: "{{ php_version_full.stdout }}"