ci.yml

name: CI

on:
  push:
    branches: [main]
  pull_request:

jobs:
  macos:
    name: macOS / Ruby ${{ matrix.ruby }}
    runs-on: macos-14
    strategy:
      fail-fast: false
      matrix:
        ruby: ['3.2', '3.3', '3.4']
    steps:
      - uses: actions/checkout@v4

      - name: Clone libBeresta (read-only) for codegen + native build
        run: |
          git clone --depth=1 https://github.com/libBeresta/libBeresta.git ../libBeresta

      - name: Install build deps (cmake, libpng, zlib, pkg-config)
        run: |
          brew update
          brew install cmake libpng pkg-config

      - name: Set up Ruby
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: ${{ matrix.ruby }}
          bundler-cache: true

      - name: Build libBeresta.dylib
        run: |
          cmake -S . -B build \
            -DLIBBRST_SOURCE_DIR=$(cd ../libBeresta && pwd) \
            -DCMAKE_BUILD_TYPE=Release
          cmake --build build --config Release -j

      - name: Regenerate FFI bindings from .lsp
        run: |
          ruby generator/bin/brst-binding-ruby-gen \
            --data-dir ../libBeresta/gen/data \
            --out-dir lib/brst/binding/ruby

      - name: Verify regeneration is idempotent (no diff)
        run: |
          if ! git diff --quiet -- lib/brst/binding/ruby; then
            echo "Regeneration produced a diff — committed bindings drifted from generator output:"
            git diff --stat -- lib/brst/binding/ruby
            git diff -- lib/brst/binding/ruby
            exit 1
          fi

      - name: Run tests
        run: bundle exec rspec

      - name: Build gem
        run: gem build brst-binding-ruby.gemspec