ci.yml

name: CI
on:
  push:
    paths:
      - '**.java'
      - '**.xml'
      - '.github/workflows/*.yml'
  pull_request:

jobs:
  supported-jdk:
    name: ${{ matrix.title }}
    continue-on-error: ${{ matrix.experimental }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - title: "Supported JDK 8"
            experimental: false
            cache-id: "jdk8"
            java: 8
            dist: temurin
            flags: ""
          - title: "Supported JDK 11"
            experimental: false
            cache-id: "jdk11"
            java: 11
            dist: temurin
            flags: ""
          - title: "Supported JDK 17"
            experimental: false
            cache-id: "jdk17"
            java: 17
            dist: temurin
            flags: ""
          - title: "Supported JDK 21"
            experimental: false
            cache-id: "jdk21"
            java: 21
            dist: zulu
            flags: ""
    runs-on: ubuntu-latest
    steps:
    - name: 'Checkout from Git'
      # Can't refer to matrix in job if conditional, so we have to repeat it every step: https://github.com/actions/runner/issues/1985
      if: ${{ !(matrix.experimental && github.event_name == 'pull_request') }}
      uses: actions/checkout@v4
    - name: 'Cache Maven repo'
      if: ${{ !(matrix.experimental && github.event_name == 'pull_request') }}
      uses: actions/cache@v3
      with:
          path: |
            ~/.m2/repository
            target/spotless-node-modules-prettier-format
          key: ${{ runner.os }}-mvn-${{ matrix.cache-id }}-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-mvn-${{ matrix.cache-id }}
    - name: 'Set up JDK ${{ matrix.java }}'
      if: ${{ !(matrix.experimental && github.event_name == 'pull_request') }}
      uses: actions/setup-java@v3
      with:
          distribution: ${{ matrix.dist }}
          java-version: ${{ matrix.java }}
    - name: 'Set up node' # Needed for formatting with prettier
      if: ${{ !(matrix.experimental && github.event_name == 'pull_request') }}
      uses: actions/setup-node@v3
      with:
        node-version: 12
    - name: 'Display JDK version'
      if: ${{ !(matrix.experimental && github.event_name == 'pull_request') }}
      run: java -version
    - name: 'Run Maven'
      if: ${{ !(matrix.experimental && github.event_name == 'pull_request') }}
      # Don't clean, or whatever was cached in target/spotless-node-modules-prettier-format is lost
      run: mvn verify ${{ matrix.flags }}