jacoco badges

.github/workflows/build.yml

@@ -18,4 +18,20 @@ jobs:
       - name: Build with Gradle
         run: ./gradlew build
       - name: Unit Test with Gradle
-        run: ./gradlew test
+        run: ./gradlew test
+      - name: Generate JaCoCo badge
+        id: jacoco
+        uses: cicirello/jacoco-badge-generator@v2
+        with:
+          badges-directory: badges
+          generate-branches-badge: true
+          generate-summary: true
+      - name: Log coverage percentages to workflow output
+        run: |
+          echo "coverage = ${{ steps.jacoco.outputs.coverage }}"
+          echo "branches = ${{ steps.jacoco.outputs.branches }}"
+      - name: Upload JaCoCo coverage report as a workflow artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: jacoco-report
+          path: target/site/jacoco/