SQSCANGHA-75 Support self-hosted runners not clearing temp after run (#164)

.github/workflows/qa-main.yml

@@ -618,4 +618,39 @@ jobs:
           projectBaseDir: ./test/example-project
       - name: Assert failure of previous step
         if: steps.wrong_ssl_certificate.outcome == 'success'
-        run: exit 1
+        run: exit 1
+  overridesScannerLocalFolderWhenPresent:
+    name: >
+      'SCANNER_LOCAL_FOLDER' is overridden with warning when present
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Create a dummy SCANNER_LOCAL_FOLDER with dummy content in it
+        run: |
+          SCANNER_VERSION="6.2.1.4610"
+          SCANNER_LOCAL_FOLDER="$RUNNER_TEMP/sonar-scanner-cli-$SCANNER_VERSION-$RUNNER_OS-$RUNNER_ARCH"
+          # emit SCANNER_VERSION and SCANNER_LOCAL_FOLDER to be able to read them in the next steps
+          echo "SCANNER_VERSION=$SCANNER_VERSION" >> $GITHUB_ENV
+          echo "SCANNER_LOCAL_FOLDER=$SCANNER_LOCAL_FOLDER" >> $GITHUB_ENV
+          mkdir -p "$SCANNER_LOCAL_FOLDER"
+          touch "$SCANNER_LOCAL_FOLDER/some_content.txt"
+      - name: Assert SCANNER_LOCAL_FOLDER exists and dummy file is in it
+        run: |
+          [ -d "$SCANNER_LOCAL_FOLDER" ] || exit 1
+          [ -f "$SCANNER_LOCAL_FOLDER/some_content.txt" ] || exit 1
+      - name: Run action with SONAR_SCANNER_TEMP
+        uses: ./
+        env:
+          SONAR_SCANNER_TEMP: /tmp/sonar-scanner
+          SONAR_HOST_URL: http://not_actually_used
+          NO_CACHE: true # force install-sonar-scanner-cli.sh execution
+        with:
+          args: -Dsonar.scanner.internal.dumpToFile=./output.properties
+          scannerVersion: ${{ env.SCANNER_VERSION }}
+      - name: Assert SCANNER_LOCAL_FOLDER exists and dummy file is not in it
+        run: |
+          [ -d "$SCANNER_LOCAL_FOLDER" ] || exit 1
+          [ ! -f "$SCANNER_LOCAL_FOLDER/some_content.txt" ] || exit 1
+

scripts/install-sonar-scanner-cli.sh

@@ -48,5 +48,13 @@ fi
 
 unzip -q -o $SCANNER_FILE_NAME
 
+SCANNER_UNZIP_FOLDER="sonar-scanner-$INPUT_SCANNERVERSION-$FLAVOR"
 # Folder name should correspond to the directory cached by the actions/cache
-mv sonar-scanner-$INPUT_SCANNERVERSION-$FLAVOR $RUNNER_TEMP/sonar-scanner-cli-$INPUT_SCANNERVERSION-$RUNNER_OS-$RUNNER_ARCH
+SCANNER_LOCAL_FOLDER="$RUNNER_TEMP/sonar-scanner-cli-$INPUT_SCANNERVERSION-$RUNNER_OS-$RUNNER_ARCH"
+
+if [ -d "$SCANNER_LOCAL_FOLDER" ]; then
+     echo "::warning title=SonarScanner::Cleaning existing scanner folder: $SCANNER_LOCAL_FOLDER"
+     rm -rf "$SCANNER_LOCAL_FOLDER"
+fi
+
+mv -f "$SCANNER_UNZIP_FOLDER" "$SCANNER_LOCAL_FOLDER"