posttrans: set as default grub theme if nothing else is already set [release 5.25.2-2mamba;Mon Jul 04 2022]

breeze-grub.spec

@@ -2,7 +2,7 @@
 %define plasmaver %(echo %{version} | cut -d. -f1-3)
 Name:          breeze-grub
 Version:       5.25.2
-Release:       1mamba
+Release:       2mamba
 Summary:       KDE Plasma 5 Breeze theme for the Grub boot loader
 Group:         Graphical Desktop/Look 'n' feel
 Vendor:        openmamba
@@ -42,6 +42,14 @@ cp -a breeze %{buildroot}%{_datadir}/grub/themes
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 
 %posttrans
+if [ $1 -ge 1 -a -e /etc/default/grub ]; then
+   # set as grub theme if nothing else is already set
+   grep "^GRUB_THEME=" /etc/default/grub >/dev/null || {
+      cat >> /etc/default/grub << _EOF
+GRUB_THEME="%{_datadir}/grub/themes/breeze/theme.txt"
+_EOF
+   }
+fi
 [ -e %{_sbindir}/update-grub ] && update-grub &>/dev/null || true
 :
 
@@ -57,6 +65,9 @@ cp -a breeze %{buildroot}%{_datadir}/grub/themes
 %{_datadir}/grub/themes/breeze/theme.txt
 
 %changelog
+* Mon Jul 04 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 5.25.2-2mamba
+- posttrans: set as default grub theme if nothing else is already set
+
 * Wed Jun 29 2022 Automatic Build System <autodist@mambasoft.it> 5.25.2-1mamba
 - automatic version update by autodist