skip if no report, linting

Author: sfc-gh-pcyrek

.github/workflows/build_test.yml

@@ -465,14 +465,14 @@ jobs:
           src_dir = Path("artifacts")
           dst_dir = Path(".") / ".tox"
           dst_dir.mkdir()
-          
+
           # Collect all .coverage files with unique names
           for src_file in src_dir.glob("**/.coverage"):
               artifact_name = src_file.parent.name
               dst_file = dst_dir / f".coverage.{artifact_name}"
               print(f"Copying {src_file} to {dst_file}")
               shutil.copy(str(src_file), str(dst_file))'
-      
+
       - name: Collect all test result files
         run: |
           python -c '
@@ -482,7 +482,7 @@ jobs:
           src_dir = Path("artifacts")
           dst_dir = Path(".") / "junit_results"
           dst_dir.mkdir()
-          
+
           # Collect all JUnit XML files with unique names
           for src_file in src_dir.glob("**/junit*.xml"):
               artifact_name = src_file.parent.name
@@ -491,7 +491,17 @@ jobs:
               print(f"Copying {src_file} to {dst_file}")
               shutil.copy(str(src_file), str(dst_file))'
       - name: Combine coverages
-        run: python -m tox run -e coverage
+        run: |
+          # Check if any coverage files exist before running coverage combine
+          if [ -d ".tox" ] && [ "$(find .tox -name ".coverage*" -type f | wc -l)" -gt 0 ]; then
+            python -m tox run -e coverage
+          else
+            echo "No coverage files found, skipping coverage combination"
+            # Create empty coverage files to prevent downstream failures
+            mkdir -p .tox
+            touch .tox/coverage.xml
+            touch .tox/htmlcov/index.html
+          fi
       - name: Publish html coverage
         uses: actions/upload-artifact@v4
         with: