feat: dynamic ram assignment when over 1GB (#4921)

* feat: dynamic ram assignment when over 1GB

* fix: update if statement syntax

* refactor: added for loop for string replacement

* refactor: echo string to be more descriptive

* feat: will default profile to 256 if less then 1GB of ram

* fix: moved ram replacement string

kura/distrib/src/main/resources/common/customize-installation.sh

@@ -61,4 +61,23 @@ if [ ${BOARD} = "generic-device" ]; then
     else
         echo "python3 not found. snapshot_0.xml, and iptables.init files may have wrong interface names. Default is eth0 and wlan0. Please correct them manually if they mismatch."
     fi
-fi
+
+    # dynamic RAM assignment
+    RAM_KB=$(grep MemTotal /proc/meminfo | awk '{print $2}')
+    RAM_MB=$(expr $RAM_KB / 1024)
+    RAM_MB_FOR_KURA=$(expr $RAM_MB / 4)
+
+    if [ "$RAM_MB" -lt 1024 ]; then
+        RAM_REPLACEMENT_STRING="-Xms256m -Xmx256m"
+    fi
+
+    echo "Setting kura RAM to ${RAM_REPLACEMENT_STRING}"
+    start_scripts_to_change=("start_kura.sh" "start_kura_debug.sh" "start_kura_background.sh")
+
+    RAM_REPLACEMENT_STRING="-Xms${RAM_MB_FOR_KURA}m -Xmx${RAM_MB_FOR_KURA}m"
+    for installer_name in "${start_scripts_to_change[@]}"; do
+        echo "Updating RAM values for $installer_name"
+        sed -i "s/-Xms[0-9]*m -Xmx[0-9]*m/$RAM_REPLACEMENT_STRING/g" "/opt/eclipse/kura/bin/$installer_name"
+    done
+
+fi