Add SonarQube workflow for code analysis

Author: cranberry3148

.github/workflows/sonarqube.yml

@@ -0,0 +1,39 @@
+name: SonarQube
+
+on:
+  push:
+    branches:
+      - main
+
+
+jobs:
+  sonarqube:
+    name: SonarQube
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: 17
+          distribution: 'zulu' # Alternative distribution options are available.
+      - name: Cache SonarQube packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.sonar/cache
+          key: ${{ runner.os }}-sonar
+          restore-keys: ${{ runner.os }}-sonar
+      - name: Cache Gradle packages
+        uses: actions/cache@v4
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
+          restore-keys: ${{ runner.os }}-gradle
+      - name: Build and analyze
+        env:
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
+        run: ./gradlew build sonar --info