name: Build
on: [ push, pull_request ]

jobs:
  build:
    # Only run on PRs if the source branch is on someone else's repo
    if: ${{ github.event_name != 'pull_request' || github.repository != github.event.pull_request.head.repo.full_name }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        java: [ 17 ]
      fail-fast: true
    steps:
      - uses: actions/checkout@v2
      - name: JDK ${{ matrix.java }}
        uses: actions/setup-java@v2
        with:
          java-version: ${{ matrix.java }}
          distribution: 'temurin'
      - uses: actions/cache@v2
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-
      - name: Build
        run: ./gradlew build --stacktrace