Fix Sonar run for PRs

Signed-off-by: Zbynek Cervinka <[email protected]>

Author: zcervink

.github/workflows/linux.yml

@@ -10,6 +10,22 @@ on:
     branches: [ main ]
 
 jobs:
+  configure_sonar:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    
+    steps:
+      - name: Save Sonar config on PR
+        run: |
+          mkdir -p ./prInfo
+          echo ${{ github.event.number }} > ./prInfo/PR
+          echo ${{ github.base_ref }} > ./prInfo/base_ref
+          echo ${{ github.head_ref }} > ./prInfo/head_ref
+      - uses: actions/upload-artifact@v2
+        with:
+          name: prInfo
+          path: prInfo/
+          
   build-linux:
     runs-on: ubuntu-latest
 

.github/workflows/sonar.yml

@@ -1,26 +1,64 @@
-# This workflow will build a Java project with Gradle
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
-
-name: SonarQube analysis - Linux
-
+name: Sonar
 on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
+  workflow_run:
+    workflows: ["Java CI with Gradle - Linux"]
+    types:
+      - completed
 jobs:
-  build-linux:
+  build:
+    name: Sonar
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up JDK 11
-      uses: actions/setup-java@v1
-      with:
-        java-version: 11
-    - name: Run Sonar analysis
-      env:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
+          ref: ${{github.event.workflow_run.head_sha}}
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - name: Download artifacts
+        uses: actions/[email protected]
+        with:
+          script: |
+            var artifacts = await github.actions.listWorkflowRunArtifacts({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                run_id: ${{github.event.workflow_run.id}},
+            });
+            for (var artifact of artifacts.data.artifacts) {
+              if (artifact.name == 'linux-integration-test-reports' || artifact.name == 'ubuntu-latest-test-reports' || artifact.name == 'prInfo') {
+                var zipfile = await github.actions.downloadArtifact({
+                  owner: context.repo.owner,
+                  repo: context.repo.repo,
+                  artifact_id: artifact.id,
+                  archive_format: 'zip',
+                });
+                var fs = require('fs');
+                var path = require('path');
+                var pathFile = path.format({
+                  root: '${{github.workspace}}/',
+                  name: artifact.name,
+                  ext: '.zip'
+                });
+                fs.writeFileSync(pathFile, Buffer.from(zipfile.data));
+              }
+            }
+      - name: Unzip artifacts
+        run: |
+          find . -name '*.zip' -exec sh -c 'unzip -d "${{github.workspace}}/build" "$1"' _ {} \;
+      - name: Run Sonar analysis
+        env:        
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
-      run: ./gradlew sonarqube
+        run: |
+          if [ '${{github.event.workflow_run.event}}' == 'pull_request' ]; then
+            PR_NUMBER=$(<build/PR)
+            BASE_REF=$(<build/base_ref)
+            HEAD_REF=$(<build/head_ref)
+            ./gradlew sonarqube -Dsonar.pullrequest.base=$BASE_REF -Dsonar.pullrequest.branch=$HEAD_REF -Dsonar.pullrequest.key=$PR_NUMBER -Dsonar.pullrequest.provider=GitHub -Dsonar.pullrequest.github.repository=${{github.repository}}
+          else
+            ./gradlew sonarqube
+          fi
+        shell: bash
+