build.yml

# vim:ai et ts=2 sts=2 sw=2:
name: Build

on:
  pull_request:
  push:
    branches:
      - 'master'

jobs:
  build:
    name: Build (Java ${{ matrix.java-version }})
    runs-on: ubuntu-latest
    strategy:
      # We need multiple builds to run even if the 1st one is failing, because
      # test failures may be Java-specific (or the tests themselves flaky).
      fail-fast: false
      matrix:
        java-version: [ '8', '11', '17' ]

    # A possible workaround for <https://github.com/dorny/test-reporter/issues/168>.
    permissions:
      checks: write
      contents: write
      pull-requests: write
      statuses: write

    steps:
      - uses: actions/checkout@v3

      - name: Set up Java ${{ matrix.java-version }}
        uses: actions/setup-java@v3
        with:
          distribution: 'zulu'
          java-version: ${{ matrix.java-version }}
          java-package: jdk

      - name: Cache local Maven repository
        uses: actions/cache@v3
        with:
          path: ~/.m2/repository
          key: maven-build-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            maven-build-

      - name: Maven build
        run: mvn -B -Dstyle.color=always clean package
        shell: bash