name: Java CI

on:
  push:
    branches:
      - main
      - 5.x.x
  pull_request:
    branches:
      - main
      - 5.x.x

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        java: [ 8, 11, 17, 21 ]
    name: Java ${{ matrix.java }} build
    steps:
      - uses: actions/checkout@v4
      - name: Prepare multi-module build
        run: |
          git submodule update --init --recursive
      - name: Set up Java
        uses: actions/setup-java@v3
        with:
          distribution: liberica
          java-version: ${{ matrix.java }}
      - name: Cache Maven packages
        uses: actions/cache@v3
        with:
          path: ~/.m2
          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
          restore-keys: ${{ runner.os }}-m2
      - name: Build with Maven
        run: ./mvnw clean package -Dgpg.skip
      - name: Compile integration tests
        run:  ./mvnw -Pintegration-test test-compile compile
      - if: ${{ matrix.java != 8 }}
        name: Check style with Spotless
        run:  ./mvnw spotless:check -Pintegration-test