fixed check updates availibillity

Makefile

@@ -2,7 +2,7 @@
 
 -include .env
 
-VERSION=20230619
+VERSION=20230926
 IMAGENAME=dnsmasq
 REPO=git.rre.nu/jonas
 TITLE=dnsmasq based on openSUSE Tumpleweed

autobuild.sh

@@ -19,16 +19,13 @@ if [[ "$CURRENT_TUMBLEWEED_TAG" == "$LATEST_TUMBLEWEED_TAG" ]]; then
 fi
 
 echo "New tumbleweed image exists"
-CURRENT_VERSION="$(podman run --rm -it ${TARGET_REPO}${PACKAGE_NAME}:latest /usr/bin/bash -c "zypper info $PACKAGE_NAME | sed -n 's/.*Version        : \(.*\)$/\1/p'")"
-LATEST_VERSION="$(podman run --rm -it ${BASE_IMAGE}:latest /usr/bin/bash -c "zypper ref > /dev/null && zypper info $PACKAGE_NAME | sed -n 's/.*Version        : \(.*\)$/\1/p'")"
-
-echo "current : $CURRENT_VERSION"
-echo "latest  : $LATEST_VERSION"
-
-if [[ "$CURRENT_VERSION" == "$LATEST_VERSION" ]]; then
-    echo "No new $PACKAGE_NAME version detected"
+if [[ "x" == "x$(podman run --rm -it ${TARGET_REPO}${PACKAGE_NAME}:latest /usr/bin/bash -c "zypper list-updates | grep $PACKAGE_NAME")" ]]; then
+    echo "No updates for $PACKAGE_NAME"
     exit 0
 fi
+LATEST_VERSION="$(podman run --rm -it ${BASE_IMAGE}:latest /usr/bin/bash -c "zypper ref > /dev/null && zypper info $PACKAGE_NAME | sed -n 's/.*Version        : \(.*\)$/\1/p'")"
+
+echo "updates found  : $LATEST_VERSION"
 
 #Updateing Makefile with latest image tag
 sed -i 's/VERSION='"$CURRENT_TUMBLEWEED_TAG"'/VERSION='"$LATEST_TUMBLEWEED_TAG"'/' Makefile