name: Build PR snapshot

on:
  pull_request:
    paths:
      - '**.gradle'
      - '**.properties'
      - '**/src/**'
    types: [ opened, synchronize, reopened ]
jobs:
  build:
    strategy:
      matrix:
        java: [ 8-jdk, 11-jdk, 15-jdk ]
    runs-on: ubuntu-20.04
    container:
      image: openjdk:${{ matrix.java }}
      options: --user root
    if: |	
        !contains(github.event.pull_request.title, '[ci skip]')
    steps:
      - uses: actions/cache@v2
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-
      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
      - uses: actions/checkout@v2
      - uses: gradle/wrapper-validation-action@v1
      - name: Build with Gradle
        run: |
          ./gradlew build --stacktrace --no-daemon
      - name: Upload Artifacts
        uses: actions/upload-artifact@v2
        with:
          name: '${{ github.event.repository.name }} PR${{ github.event.number }} Snapshot #${{ github.run_number }}'
          path: |
            **/build/libs/
            !build/libs/
            !**/*-shadow.jar
            !**/*-transformProduction([\w]+).jar
      - name: Verify License integrity
        run: ./gradlew licenseCheck