Use explicit Gitea revision variables

.gitea/workflows/container.yml

@@ -40,14 +40,17 @@ jobs:
 
       - name: Build and push image
         if: gitea.ref == 'refs/heads/main' || startsWith(gitea.ref, 'refs/tags/v')
+        env:
+          COMMIT_SHA: ${{ gitea.sha }}
+          GIT_REF: ${{ gitea.ref }}
         run: |
           docker build --load \
-            --label "org.opencontainers.image.revision=${GITEA_SHA}" \
+            --label "org.opencontainers.image.revision=${COMMIT_SHA}" \
             --label "org.opencontainers.image.source=https://code.brunner.ninja/feedc0de/immich-sync" \
-            --tag "${IMAGE}:${GITEA_SHA}" .
-          docker push "${IMAGE}:${GITEA_SHA}"
-          if [ "${GITEA_REF}" = refs/heads/main ]; then
-            docker tag "${IMAGE}:${GITEA_SHA}" "${IMAGE}:latest"
+            --tag "${IMAGE}:${COMMIT_SHA}" .
+          docker push "${IMAGE}:${COMMIT_SHA}"
+          if [ "${GIT_REF}" = refs/heads/main ]; then
+            docker tag "${IMAGE}:${COMMIT_SHA}" "${IMAGE}:latest"
             docker push "${IMAGE}:latest"
           fi
 
@@ -55,10 +58,11 @@ jobs:
         if: gitea.ref == 'refs/heads/main' || startsWith(gitea.ref, 'refs/tags/v')
         env:
           CHART_VERSION: ${{ steps.version.outputs.version }}
+          COMMIT_SHA: ${{ gitea.sha }}
         run: |
           mkdir -p dist
           helm package chart --destination dist \
-            --version "${CHART_VERSION}" --app-version "${GITEA_SHA}"
+            --version "${CHART_VERSION}" --app-version "${COMMIT_SHA}"
           curl --fail-with-body --user "${{ secrets.PACKAGE_USERNAME }}:${{ secrets.PACKAGE_TOKEN }}" \
             --request POST \
             --upload-file "dist/immich-sync-${CHART_VERSION}.tgz" \
@@ -66,9 +70,11 @@ jobs:
 
       - name: Check that this is still current main
         if: gitea.ref == 'refs/heads/main'
+        env:
+          COMMIT_SHA: ${{ gitea.sha }}
         run: |
           git fetch --no-tags origin main
-          test "$(git rev-parse FETCH_HEAD)" = "${GITEA_SHA}"
+          test "$(git rev-parse FETCH_HEAD)" = "${COMMIT_SHA}"
 
       - name: Check out GitOps repository
         if: gitea.ref == 'refs/heads/main'