cleaner implementation of version check

.github/workflows/docker-publish.yml

@@ -18,7 +18,7 @@ on:
 env:
   # Use docker.io for Docker Hub if empty
   REGISTRY: ghcr.io
-  DOCKER_REGISTRY: ghcr.io/servercontainers
+  DOCKER_REGISTRY: ghcr.io/${{ github.repository_owner }}
   # github.repository as <account>/<repo>
   IMAGE_NAME: ${{ github.repository }}
 
@@ -72,7 +72,7 @@ jobs:
       - name: New version needed?
         id: docker_version_check          
         run: |
-          ./build.sh variant
+          ./build.sh version-check
 
       - name: Extract Docker Version Tag
         id: docker_version_tag          

build.sh

@@ -17,6 +17,9 @@ docker buildx build -q --pull --no-cache --platform "$PLATFORM" -t "$IMG:$TAG" -
 
 echo "$@" | grep "release" 2>/dev/null >/dev/null && echo ">> releasing new latest" && docker buildx build -q --pull --platform "$PLATFORM" -t "$IMG:latest" --push .
 
+# make sure to exit if this is only version check
+echo "$@" | grep "version-check" && exit 0 
+
 # make sure this is only executed in main script
 echo "$@" | grep "variant" && exit 0