fixes

.gitea/workflows/gentoo-utils.yml

@@ -18,7 +18,6 @@ jobs:
         with:
           fetch-depth: 0
 
-
       - name: Check for changes before building
         id: image-changes
         # build image only if 1. changes are detected or 2. an image for the working branch doesnt exist
@@ -28,7 +27,7 @@ jobs:
           image_tag=latest
           comparison_hash="${{ gitea.event.before }}"
 
-          if [[ "$branch_name" != "${{ gitea.event.repository.default_branch }}" ]]; then
+          if [[ "$branch_name" != "$default_branch_name" ]]; then
             image_tag=$branch_name
           fi
           # slugify
@@ -49,7 +48,7 @@ jobs:
             fi
           fi
 
-          echo "default_branch_name=$default_branch_name"
+          echo "default_branch_name=$default_branch_name" >> $GITEA_OUTPUT
           echo "branch_name=$branch_name" >> $GITEA_OUTPUT
           echo "image_tag=$image_tag" >> $GITEA_OUTPUT
           echo "comparison_hash=$comparison_hash" >> $GITEA_OUTPUT