name: CI

on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        java-version:
          - 1.8
          - 9
          - 10
          - 11
          - 12
          - 13
          - 14
          - 15-ea

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Validate Gradle Wrapper
        uses: gradle/wrapper-validation-action@v1

      - name: Generate cache key
        run: ./.github/workflows/checksum.sh checksum.txt

      - uses: actions/cache@v2
        with:
          path: ~/.gradle/caches
          key: ${{ runner.os }}-gradle-${{ matrix.java-version }}-${{ hashFiles('checksum.txt') }}
          restore-keys: |
            ${{ runner.os }}-gradle-${{ matrix.java-version }}-

      - name: Configure JDK
        uses: actions/setup-java@v1
        with:
          java-version: ${{ matrix.java-version }}

      - name: Test
        run: ./gradlew build check

      - name: Publish (default branch only)
        if: github.ref == 'refs/heads/master' && matrix.java-version == '1.7'
        run: ./gradlew uploadArchives
        env:
          ORG_GRADLE_PROJECT_SONATYPE_NEXUS_USERNAME: ${{ secrets.SONATYPE_NEXUS_USERNAME }}
          ORG_GRADLE_PROJECT_SONATYPE_NEXUS_PASSWORD: ${{ secrets.SONATYPE_NEXUS_PASSWORD }}