Update python-app.yml

- temporarily skip flake8
- initial draft of coverage badge code (see https://nedbatchelder.com/blog/202209/making_a_coverage_badge.html)

.github/workflows/python-app.yml

@@ -31,9 +31,27 @@ jobs:
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-    - name: Test with pytest
+        # flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+        echo 'Skipping flake8 temporarily'
+    - name: Test with pytest and coverage
       run: |
-        pytest --cov
+        pytest --cov-report='json'
+    - name: Coverage
+      run: |
+        export TOTAL=$(python -c "import json;print(json.load(open('coverage.json'))['totals']['percent_covered_display'])")
+        echo "total=$TOTAL" >> $GITHUB_ENV
+        echo "### Total coverage: ${TOTAL}%" >> $GITHUB_STEP_SUMMARY
+    - name: "Make badge"
+      uses: schneegans/[email protected]
+      with:
+        # GIST_TOKEN is a GitHub personal access token with scope "gist".
+        auth: ${{ secrets.GIST_TOKEN }}
+        gistID: 116f9fefb73f6fcf9ffe8ce34d72efd7   # replace with your real Gist id.
+        filename: covbadge.json
+        label: Coverage
+        message: ${{ env.total }}%
+        minColorRange: 50
+        maxColorRange: 90
+        valColorRange: ${{ env.total }}