GitHub actions: save coverage data as artifacts

Signed-off-by: flashdagger <flashdagger@googlemail.com>

.github/workflows/core-tests.yml

@@ -40,6 +40,17 @@ jobs:
     - name: Unit tests with pytest
       run: |
         poetry run pytest
+      env:
+        COVERAGE_FILE: .coverage.{{ matrix.python-version }}
+    - name: Upload coverage data
+      if: success() || failure()
+      uses: actions/upload-artifact@v3
+      with:
+        name: coverage_${{ env.RUN_UNIQUE_ID }}
+        if-no-files-found: ignore
+        path: .coverage*
+        compression-level: 0  # no compression
+        retention-days: 1
     - name: prepare coverage data
       continue-on-error: true
       run: |
@@ -68,3 +79,15 @@ jobs:
       if: ${{ matrix.python-version != '3.8' }}
       run: |
         poetry run pylint ./zammadoo
+
+  process-test-data:
+    runs-on: ubuntu-latest
+    needs: test
+    if: success() || failure()
+    steps:
+      - name: Download coverage data
+        uses: actions/download-artifact@v3
+        with:
+          path: .coverage*
+      - name: Display structure of downloaded files
+        run: ls -lR

pyproject.toml

@@ -76,7 +76,7 @@ src_paths = ["zammadoo", "tests"]
 # see: https://pytest-cov.readthedocs.io/en/latest/config.html
 [tool.pytest.ini_options]
 minversion = "7.4"
-addopts = "tests -v --tb=short --cov=zammadoo --cov-report html --mypy-only-local-stub --benchmark-max-time=0.1"
+addopts = "tests -v --tb=short --cov=zammadoo --mypy-only-local-stub --benchmark-max-time=0.1"
 cache_dir = ".cache/pytest"
 markers = ["no_record"]