Update paperless-ngx.sh

add version check

ct/paperless-ngx.sh

@@ -66,6 +66,7 @@ function update_script() {
     3>&1 1>&2 2>&3)
   header_info
   if [ "$UPD" == "1" ]; then
+    if [[ "${RELEASE}" != "$(cat /opt/${APP}_version.txt)" ]] || [[ ! -f /opt/${APP}_version.txt ]]; then
       msg_info "Stopping all Paperless-ngx Services"
       systemctl stop paperless-consumer paperless-webserver paperless-scheduler paperless-task-queue.service
       msg_ok "Stopped all Paperless-ngx Services"
@@ -93,6 +94,9 @@ function update_script() {
       sleep 1
       msg_ok "Started all Paperless-ngx Services"
       msg_ok "Updated Successfully!\n"
+    else
+      msg_ok "No update required. ${APP} is already at ${RELEASE}"
+    fi
     exit
   fi
   if [ "$UPD" == "2" ]; then