infra: switch to using generic tag name and manually selecting image

.gitea/workflows/gentoo-utils.yml

@@ -19,10 +19,7 @@ jobs:
       - name: Check for changes before building
         id: image-changes
         run: |
-          echo "gitea test: ${GITEA_HEAD_REF:-${GITEA_REF#refs/heads/}}"
-          echo "github test: ${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}"
           echo "branch_name=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}" >> $GITEA_OUTPUT
-          echo "default_branch_name=${{ gitea.event.repository.default_branch }}" >> $GITEA_OUTPUT
           if ! git diff ${{ gitea.event.before }} ${{ gitea.sha }} --no-patch --exit-code .docker; then
             echo changes_detected=true >> $GITEA_OUTPUT
           else
@@ -33,32 +30,32 @@ jobs:
         if: steps.image-changes.outputs.changes_detected == 'true'
         uses: docker/setup-buildx-action@v3
 
-      # -
-      #   name: Log in to Github Container Registry
-      #   if: steps.image-changes.outputs.changes_detected == 'true'
-      #   uses: docker/login-action@v3
-      #   with:
-      #     registry: git.epenguin.net
-      #     username: ${{ vars.CI_BOT_USERNAME }}
-      #     password: ${{ secrets.CI_BOT_TOKEN }}
+      -
+        name: Log in to Github Container Registry
+        if: steps.image-changes.outputs.changes_detected == 'true'
+        uses: docker/login-action@v3
+        with:
+          registry: git.epenguin.net
+          username: ${{ vars.CI_BOT_USERNAME }}
+          password: ${{ secrets.CI_BOT_TOKEN }}
 
-      # -
-      #   name: Build and push
-      #   if: steps.image-changes.outputs.changes_detected == 'true'
-      #   uses: docker/build-push-action@v6
-      #   with:
-      #     push: true
-      #     tags: git.epenguin.net/${{ gitea.repository }}:latest
-      #     context: "{{defaultContext}}:.docker"
+      -
+        name: Build and push
+        if: steps.image-changes.outputs.changes_detected == 'true'
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          tags: git.epenguin.net/${{ gitea.repository }}:latest
+          context: "{{defaultContext}}:.docker"
 
-  # build:
-  #   runs-on: brutalisk
-  #   container:
-  #     image: git.epenguin.net/gentoo-utils/gentoo-utils-gitea:latest
-  #   needs: build-oci-image
-  #   steps:
-  #     - name: Checkout repo
-  #       uses: actions/checkout@v5
+  build:
+    runs-on: brutalisk
+    container:
+      image: git.epenguin.net/gentoo-utils/gentoo-utils-gitea:latest
+    needs: build-oci-image
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v5
 
-  #     - name: build and check
-  #       run: ./check.sh
+      - name: build and check
+        run: ./check.sh