added background check of known login managers if they are active if user chose to install sddm

CHANGELOGS.md

@@ -1,5 +1,8 @@
 ## Changelogs
 
+## 10 Sep 2024
+- added background check of known login managers if they are active if user chose to install sddm
+
 ## 08 Sep 2024
 - Added final error checks on install-logs
 

install.sh

@@ -172,6 +172,23 @@ printf "\n"
 # Ensuring all in the scripts folder are made executable
 chmod +x install-scripts/*
 
+# check if any known login managers are active when users choose to install sddm
+if [ "$sddm" == "Y" ]; then
+    # List of services to check
+    services=("gdm.service" "gdm3.service" "lightdm.service" "xdm.service" "lxdm.service")
+
+    # Loop through each service
+    for svc in "${services[@]}"; do
+        if systemctl is-active --quiet "$svc"; then
+            echo "${ERROR} $svc is active. Please stop or disable it first or do not choose SDDM to install."
+            echo "${NOTE} If you have GDM, no need to install SDDM. GDM will work fine as Login Manager for Hyprland."
+            exit 1  
+        fi
+    done
+fi
+
+
+sleep 1
 sudo apt update
 
 # execute pre clean up