build-macos.yml

name: macOS CI

on:
  pull_request:
    paths-ignore:
      - '**.md'
      - '**.ipynb' 
      - 'myst.yml'

# Cancels any in-progress workflow runs for the same PR when a new push is made,
# allowing the runner to become available more quickly for the latest changes.
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  build:
    name: ${{ matrix.name }} ${{ matrix.build_type }}
    runs-on: ${{ matrix.os }}

    env:
      CTEST_OUTPUT_ON_FAILURE: ON
      CTEST_PARALLEL_LEVEL: 2
      CMAKE_BUILD_TYPE: ${{ matrix.build_type }}
      GTSAM_BUILD_UNSTABLE: ${{ matrix.build_unstable }}
      GTSAM_ALLOW_DEPRECATED_SINCE_V43: OFF

    strategy:
      fail-fast: true
      matrix:
        # Github Actions requires a single row to be added to the build matrix.
        # See https://help.github.com/en/articles/workflow-syntax-for-github-actions.
        name: [
          macos-15-xcode-16,
          macos-15-xcode-16-boost,
          macos-15-xcode-16-geographiclib,
        ]

        build_type: [Debug, Release]
        build_unstable: [ON]
        include:
          - name: macos-15-xcode-16
            os: macos-15
            compiler: xcode
            version: "16"

          - name: macos-15-xcode-16-boost
            os: macos-15
            compiler: xcode
            version: "16"

          - name: macos-15-xcode-16-geographiclib
            os: macos-15
            compiler: xcode
            version: "16"

        exclude:
          - name: macos-15-xcode-16-boost
            build_type: Debug
          - name: macos-15-xcode-16-geographiclib
            build_type: Debug

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        
      - name: Prepare Homebrew (robust)
        shell: bash
        run: |
          set -euxo pipefail
          export HOMEBREW_NO_AUTO_UPDATE=1
          export HOMEBREW_NO_INSTALL_FROM_API=1
          export HOMEBREW_CURL_RETRIES=5
      
          brew update-reset -q || true
          brew tap --repair || true
          brew analytics off || true
      
          # (optional) Show outdated without failing the job
          brew outdated || true

      - name: Set up compilers
        run: |
          sudo xcode-select -switch /Applications/Xcode.app
          echo "CC=clang" >> $GITHUB_ENV
          echo "CXX=clang++" >> $GITHUB_ENV

      - name: Install Boost
        if: contains(matrix.name, 'boost') && matrix.build_type == 'Release'
        run: |
          brew update
          brew upgrade boost --quiet || brew install boost --quiet
          echo "GTSAM_USE_BOOST_FEATURES=ON" >> $GITHUB_ENV
          echo "GTSAM_ENABLE_BOOST_SERIALIZATION=ON" >> $GITHUB_ENV

      - name: Install GeographicLib
        if: contains(matrix.name, 'geographiclib') && matrix.build_type == 'Release'
        run: |
          brew upgrade geographiclib --quiet || brew install geographiclib --quiet
          echo "GTSAM_ENABLE_GEOGRAPHICLIB=ON" >> $GITHUB_ENV

      - name: Enable Consistency Checks (Debug)
        if: matrix.build_type == 'Debug'
        run: |
          echo "GTSAM_ENABLE_CONSISTENCY_CHECKS=ON" >> $GITHUB_ENV

      - name: Build and Test
        run: bash .github/scripts/unix.sh -t