refactor ♻️: Refactor Proxmox repository management

Conditionally comment out and uncomment repositories, ensuring `apt update` is run only when necessary.

tasks/repos.yml

@@ -1,18 +1,49 @@
 ---
-- name: repos | Comment out Proxmox enterprise repo lines
+- name: repos | Manage Proxmox repositories
+  block:
+
+    #Proxmox enterprise repo
+
+    - name: repos | Check for Proxmox enterprise repo file
+      ansible.builtin.stat:
+        path: /etc/apt/sources.list.d/pve-enterprise.list
+      register: pve_enterprise_repo
+
+    - name: repos | Comment out Proxmox enterprise repo lines
       ansible.builtin.replace:
         path: /etc/apt/sources.list.d/pve-enterprise.list
         regexp: '^(deb\s+)'
         replace: '# \1'
-  when: ansible.builtin.stat(path='/etc/apt/sources.list.d/pve-enterprise.list').stat.exists
-  notify: apt update
+      when: pve_enterprise_repo.stat.exists
+      register: enterprise_changed
 
-- name: repos | Enable Proxmox no-subscription repo
-  ansible.builtin.copy:
-    dest: /etc/apt/sources.list.d/pve-no-subscription.list
-    owner: root
-    group: root
-    mode: "0644"
-    content: |
-      deb http://download.proxmox.com/debian/pve {{ ansible_distribution_release }} pve-no-subscription
-  notify: apt update
+    #Proxmox no-subscription repo
+
+    - name: repos | Check for pve-install-repo.list
+      ansible.builtin.stat:
+        path: /etc/apt/sources.list.d/pve-install-repo.list
+      register: pve_install_repo
+
+    - name: repos | Uncomment Proxmox no-subscription repo if present
+      ansible.builtin.replace:
+        path: /etc/apt/sources.list.d/pve-install-repo.list
+        regexp: '^#\s*(deb\s+http://download\.proxmox\.com/debian/pve\s+{{ ansible_distribution_release }}\s+pve-no-subscription)'
+        replace: '\1'
+      when: pve_install_repo.stat.exists
+      register: no_sub_uncommented
+
+    - name: repos | Add Proxmox no-subscription repo if missing
+      ansible.builtin.lineinfile:
+        path: /etc/apt/sources.list.d/pve-install-repo.list
+        regexp: '^deb\s+http://download\.proxmox\.com/debian/pve\s+{{ ansible_distribution_release }}\s+pve-no-subscription$'
+        line: "deb http://download.proxmox.com/debian/pve {{ ansible_distribution_release }} pve-no-subscription"
+        state: present
+        insertafter: EOF
+      when: pve_install_repo.stat.exists
+      register: no_sub_added
+      
+  # Notify Run apt update only once if any of the above tasks changed something
+  notify:
+    - Run apt update
+  # Trigger only if any changes occurred
+  when: enterprise_changed.changed or no_sub_uncommented.changed or no_sub_added.changed