java.yaml

name: Java

on:
  push:
    branches: [main]
    tags: ["*"]
  pull_request:
    branches: [main]

permissions:
  contents: read

jobs:
  pre-commit:
    name: Rerun pre-commit checks
    runs-on: ubuntu-slim
    steps:
      - name: Check out repo
        uses: actions/checkout@v5
      - name: Set up Python
        uses: actions/setup-python@v6
        with:
          python-version: 3.14
      - name: Install dependencies
        run: python -m pip install pre-commit
      - name: Cache pre-commit environments
        uses: actions/cache@v4
        with:
          path: ~/.cache/pre-commit
          key: pre-commit|${{ env.pythonLocation }}|${{ hashFiles('.pre-commit-config.yaml') }}
      - name: Run pre-commit hooks
        run: pre-commit run -a --show-diff-on-failure --color=always

  build:
    name: Build
    needs: pre-commit
    runs-on: ${{ matrix.os }}
    outputs:
      dist-base: ${{ steps.dist.outputs.dist-base }}
    strategy:
      matrix:
        os: [ubuntu-latest, ubuntu-24.04-arm, macos-latest, windows-latest]
        java: [22, 25]
        include:
          - os: ubuntu-latest
            java: 22
            dist: dist
    defaults:
      run:
        shell: bash
    steps:
    - name: Check out repo
      uses: actions/checkout@v5
    - name: Install Java
      uses: actions/setup-java@v5
      with:
        distribution: oracle
        java-version: ${{ matrix.java }}
        cache: maven
    - name: Install dependencies (Linux)
      if: startsWith(matrix.os, 'ubuntu-')
      run: |
        sudo add-apt-repository "ppa:openslide/openslide"
        sudo apt-get install libopenslide1
    - name: Install dependencies (macOS)
      if: matrix.os == 'macos-latest'
      run: |
        brew update
        brew install openslide
        # allow smoke test to find OpenSlide
        echo "DYLD_LIBRARY_PATH=/opt/homebrew/lib" >> $GITHUB_ENV
    - name: Install dependencies (Windows)
      if: matrix.os == 'windows-latest'
      env:
        GH_TOKEN: ${{ github.token }}
      run: |
        mkdir -p "c:\\openslide"
        cd "c:\\openslide"
        release=$(gh release list -R openslide/openslide-bin -L 1 \
            --json tagName --exclude-drafts --exclude-pre-releases | \
            jq -r .[0].tagName | \
            tr -d v)
        zipname="openslide-bin-${release}-windows-x64"
        gh release download -R openslide/openslide-bin "v${release}" \
            --pattern "${zipname}.zip"
        7z x ${zipname}.zip
        # allow smoke test to find OpenSlide
        echo "PATH=c:\\openslide\\${zipname}\\bin;$PATH" >> $GITHUB_ENV
    - name: Build
      run: mvn -Dmaven.compiler.failOnWarning=true
    - name: Smoke test
      run: |
        OPENSLIDE_DEBUG=synthetic java --enable-native-access=ALL-UNNAMED \
            -cp target/openslide-java-*.jar org.openslide.TestCLI ""
    - name: Dist
      id: dist
      if: matrix.dist
      run: |
        dist="openslide-java-dist-$GITHUB_RUN_NUMBER-$(echo $GITHUB_SHA | cut -c-10)"
        echo "dist-base=$dist" >> $GITHUB_OUTPUT
        mkdir -p "artifacts/$dist"
        mv target/openslide-java-*.jar "artifacts/${dist}"
    - name: Archive dist
      if: matrix.dist
      uses: actions/upload-artifact@v7
      with:
        name: ${{ steps.dist.outputs.dist-base }}
        path: artifacts
        compression-level: 0

  release:
    name: Release
    if: github.ref_type == 'tag'
    needs: build
    runs-on: ubuntu-slim
    concurrency: release-${{ github.ref }}
    permissions:
      contents: write
    steps:
    - name: Check out repo
      uses: actions/checkout@v5
    - name: Download artifacts
      uses: actions/download-artifact@v8
      with:
        pattern: ${{ needs.build.outputs.dist-base }}
        merge-multiple: true
    - name: Release to GitHub
      env:
        GITHUB_TOKEN: ${{ github.token }}
      run: |
        version=$(echo "${{ github.ref_name }}" | sed "s/^v//")
        awk -e '/^## / && ok {exit}' \
            -e '/^## / {ok=1; next}' \
            -e 'ok {print}' \
            CHANGELOG.md > changes
        gh release create --prerelease --verify-tag \
            --repo "${{ github.repository }}" \
            --title "OpenSlide Java $version" \
            --notes-file changes \
            "${{ github.ref_name }}" \
            "${{ needs.build.outputs.dist-base }}/"*