CI: implement codecov (#2685)

.github/workflows/build.yml

@@ -34,41 +34,13 @@ jobs:
       - name: Validate EdgeApp.bndrun
         run: git diff --exit-code io.openems.edge.application/EdgeApp.bndrun
 
-      #
-      # Generate Code-coverage-report
-      #
       - name: Generate JaCoCo Code-coverage-report
         run: ./gradlew jacocoTestReport
-
-      - name: Summarize JaCoCo Report
-        id: jacoco
-        uses: cicirello/jacoco-badge-generator@v2
-        with:
-          jacoco-csv-file: 'io.openems.*/generated/reports/jacoco/**/*.csv'
-          generate-coverage-badge: false
-
-      - name: Create JaCoCo Badge
-        env:
-          PR_NUMBER: ${{ github.event.number }}
-        run: |
-          coverage=$(echo "scale=2; ${{ steps.jacoco.outputs.coverage }} * 100" | bc | cut -c1-4);
-
-          color=red;
-          if (( $(echo "$coverage > 90" | bc -l) )); then
-            color=success;
-          elif (( $(echo "$coverage > 80" | bc -l) )); then
-            color=green;
-          elif (( $(echo "$coverage > 60" | bc -l) )); then
-            color=yellow;
-          fi;
 
-          mkdir -p ./jacoco
-          echo $PR_NUMBER > ./jacoco/jacoco_report_number
-          echo '![Code Coverage]'"(https://img.shields.io/badge/Code%20Coverage-${coverage}%25-${color}?style=flat)" > ./jacoco/jacoco_report_badge
-      - uses: actions/upload-artifact@v4
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v4
         with:
-          name: jacoco_report
-          path: jacoco/
+          token: ${{ secrets.CODECOV_TOKEN }}
 
   build-ui:
     runs-on: ubuntu-latest

README.md

@@ -1,6 +1,7 @@
 [![Build Status](https://github.com/OpenEMS/openems/actions/workflows/build.yml/badge.svg)](https://github.com/OpenEMS/openems/actions/workflows/build.yml)
 [![Gitpod live-demo](https://img.shields.io/badge/Gitpod-live--demo-blue?logo=gitpod)](https://gitpod.io/#https://github.com/OpenEMS/openems/tree/main)
 [![Cite via Zenodo](https://zenodo.org/badge/DOI/10.5281/zenodo.4440884.svg)](https://doi.org/10.5281/zenodo.4440883)
+[![codecov](https://codecov.io/gh/openems/openems/graph/badge.svg?token=xliIughqt1)](https://codecov.io/gh/openems/openems)
 
 <h1 align="center">
   <img src="./doc/modules/ROOT/assets/images/OpenEMS-Logo.png" alt="the Feneco - OpenEMS Logo" width="200"></a>

build.gradle

@@ -56,7 +56,7 @@ subprojects {
 		jacocoTestReport {
 			reports {
 				xml.required = true
-				csv.required = true
+				csv.required = false
 				html.required = false
 			}
 			// Exclude com.dalsemi.onewire

codecov.yml

@@ -0,0 +1,15 @@
+coverage:
+  round: up
+  precision: 2
+  status:
+    project:
+      default:
+        target: '60%'
+
+comment:
+  layout: "condensed_header, diff"
+  behavior: default
+  require_changes: false
+  require_base: false
+  require_head: true
+  hide_project_coverage: true