Improve CI

.github/workflows/ci.yml

@@ -2,7 +2,13 @@ name: CI
 
 on:
   push:
+    branches:
+      - 'main'
+    paths-ignore:
+      - '**.md'
   pull_request:
+    paths-ignore:
+      - '**.md'
 
 jobs:
   test-script:
@@ -112,6 +118,11 @@ jobs:
           bash -x backup.sh
           echo "Generated backup files:"
           ls -laR "$BACKUP_DIR"
+      - name: Test docker-bake.hcl contents
+        run: |
+          echo "Test if docker-bake.hcl have been generated by generate-docker-bake.sh..."
+          ./generate-docker-bake.sh docker-bake-generated.hcl
+          cmp docker-bake.hcl docker-bake-generated.hcl
 
   test-docker:
     if: ${{ github.event_name == 'pull_request' || github.ref != 'refs/heads/main' }}