Simplified container building workflow - now only checks for presence of container tag on repo

.gitea/workflows/build-containers-on-demand.yml

@@ -211,28 +211,17 @@ jobs:
             echo "ERROR: Found $ctype \"$cname\" image repo is \"$new_repo\" but expected \"$expected_repo\""
             exit 1
           fi
-          if [ -n "${old_image:-}" ]; then
-            old_tag="${old_image##*:}"
-          else
-            old_tag=""
-          fi
 
           registry="$(echo "$new_repo" | awk -F/ '{print $1}')"
 
           {
-            echo "changed=$([ "$old_tag" != "$new_tag" ] && echo true || echo false)"
             echo "new_image=$new_image"
             echo "new_repo=$new_repo"
             echo "new_tag=$new_tag"
             echo "registry=$registry"
           } >> "$GITHUB_OUTPUT"
 
-      - name: Skip if tag unchanged
-        if: steps.img.outputs.changed != 'true'
-        run: echo "${{ matrix.description }} image tag unchanged; skipping build."
-
       - name: Check if image exists on registry
-        if: steps.img.outputs.changed == 'true'
         id: check_image
         shell: bash
         run: |
@@ -267,15 +256,15 @@ jobs:
           fi
 
       - name: Skip if image already exists
-        if: steps.img.outputs.changed == 'true' && steps.check_image.outputs.exists == 'true'
+        if: steps.check_image.outputs.exists == 'true'
         run: echo "${{ matrix.description }} image ${{ steps.img.outputs.new_image }} already exists on registry; skipping build."
 
       - name: Set up Buildx
-        if: steps.img.outputs.changed == 'true' && steps.check_image.outputs.exists == 'false'
+        if: steps.check_image.outputs.exists == 'false'
         uses: docker/setup-buildx-action@v3
 
       - name: Log in to registry
-        if: steps.img.outputs.changed == 'true' && steps.check_image.outputs.exists == 'false'
+        if: steps.check_image.outputs.exists == 'false'
         uses: docker/login-action@v3
         with:
           registry: ${{ steps.img.outputs.registry }}
@@ -283,7 +272,7 @@ jobs:
           password: ${{ secrets.REGISTRY_PASSWORD }}
 
       - name: Build and push ${{ matrix.description }} (exact tag from deployment)
-        if: steps.img.outputs.changed == 'true' && steps.check_image.outputs.exists == 'false'
+        if: steps.check_image.outputs.exists == 'false'
         uses: docker/build-push-action@v6
         with:
           context: ${{ matrix.build_context }}