Record approx disk usage for 45 roles (to iiab.ini)

roles/minetest/tasks/install.yml

@@ -1,3 +1,8 @@
+- name: Record (initial) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df1
+
+
 - name: Check for Minetest world file ({{ minetest_world_dir }}/world.mt)
   stat:
     path: "{{ minetest_world_dir }}/world.mt"
@@ -7,9 +12,6 @@
   file:
     state: directory
     path: /library/games
-    # owner: root
-    # group: root
-    # mode: '0755'
 
 - include_tasks: minetest_install.yml
   when: not minetest_world.stat.exists
@@ -35,8 +37,20 @@
       url: https://content.minetest.net/packages/sfan5/worldedit/releases/13367/download/
   when: minetest_default_game == "minetest"
 
+
 # RECORD Minetest AS INSTALLED
 
+- name: Record (final) available disk space
+  shell: df -PB1 $(findmnt / -o SOURCE -n) | awk 'NR==2 {print $4}'
+  register: df2
+
+- name: Add 'minetest_disk_usage = {{ df1.stdout|int - df2.stdout|int }}' to {{ iiab_ini_file }}
+  ini_file:
+    path: "{{ iiab_ini_file }}"    # /etc/iiab/iiab.ini
+    section: minetest
+    option: minetest_disk_usage
+    value: "{{ df1.stdout|int - df2.stdout|int }}"
+
 - name: "Set 'minetest_installed: True'"
   set_fact:
     minetest_installed: True