Updated general changes

- Expects xfce to be installed and session is running
- Get property name before setting wallpaper because this property differs

playbook/roles/role-one/tasks/general-changes.yml

@@ -1,11 +1,18 @@
 ---
 
-- name: General Changes | Install xfce4
-  become: yes
-  apt:
-    name: xfce4
-    state: latest
-    update_cache: yes
+- name: General Changes | Check if xfce session is running
+  shell:
+    cmd: "echo $DESKTOP_SESSION"
+  register: session_running
+
+- name: General Changes | Debug session_running
+  debug:
+    var: session_running
+
+- name: General Changes | Stop execution if xfce session is not running
+  fail:
+    msg: "xfce session is not running"
+  when: session_running.stdout and session_running.stdout != 'xfce'
 
 - name: General Changes | Hide icons
   xfconf:
@@ -59,9 +66,22 @@
     dest: "{{ home_directory }}/Pictures"
     remote_src: yes
 
+- name: General Changes | Get propery name for setting wallpaper
+  shell:
+    cmd: "xfconf-query -c xfce4-desktop -l | grep 'last-image$'"
+  register: wallpaper_property
+
+- name: Debug | Debug wallpaper_property
+  debug:
+    var: wallpaper_property
+
+- name: Debug | Debug wallpaper_property.stdout_lines
+  debug:
+    var: wallpaper_property.stdout_lines[0]
+
 - name: General Changes | Change wallpaper
   xfconf:
     channel: "xfce4-desktop"
-    property: "/backdrop/screen0/monitor0/workspace0/last-image"
-    value_type: "string"
+    property: "{{ wallpaper_property.stdout_lines[0] }}"
+    value_type: string
     value: "{{ home_directory }}/Pictures/wallpapers/2560x1440.png"