added coveralls

.github/workflows/maven.yml

@@ -15,10 +15,18 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
-      with:
-        java-version: 1.8
-    - name: Build with Maven
-      run: mvn -B package --file pom.xml
+      - uses: actions/checkout@v2
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: Build with Maven
+        run: mvn -B package --file pom.xml
+      - name: Coveralls Maven plugin
+        env:
+          CI_NAME: Github
+          CI_BUILD_NUMBER: ${{ github.run_id }}
+          CI_BUILD_URL: https://github.com/${{ github.repository }}/commit/${{ github.event.after }}/checks
+          CI_BRANCH: ${{ steps.refs.outputs.branch_name }}
+          CI_PULL_REQUEST: ${{ steps.refs.outputs.pr_number }}
+        run: mvn coveralls:report -D repoToken=${{ secrets.COVERALLS_TOKEN }}