build.yml

name: Build
on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main
    types: [opened, synchronize, reopened]

jobs:
  build:
    name: Build and analyze
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up JDK 17
        uses: actions/setup-java@v4
        with:
          java-version: 17
          distribution: 'zulu'

      - name: Make Gradlew Executable
        run: chmod +x ./gradlew

      - name: Check for existing release tag (only on PR)
        if: github.event_name == 'pull_request'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          VERSION=$(./gradlew -q printVersion)
          TAG_EXISTS=$(curl -H "Authorization: token $GITHUB_TOKEN" -s https://api.github.com/repos/${{ github.repository }}/releases | jq -r ".[] | select(.tag_name == \"v$VERSION\") | .tag_name")
          if [ "$TAG_EXISTS" == "v$VERSION" ]; then
            echo "Release tag v$VERSION already exists. Rejecting PR."
            exit 1
          else
            echo "No existing release with tag v$VERSION found. Proceeding with build."
          fi

      - name: Cache SonarCloud packages
        uses: actions/cache@v3
        with:
          path: ~/.sonar/cache
          key: ${{ runner.os }}-sonar
          restore-keys: ${{ runner.os }}-sonar

      - name: Cache Gradle packages
        uses: actions/cache@v3
        with:
          path: ~/.gradle/caches
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
          restore-keys: ${{ runner.os }}-gradle

      - name: Build and analyze
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
        run: ./gradlew build sonar --info