name: apple m

on: [push, pull_request]

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

permissions:
  contents: read # to fetch code (actions/checkout)

jobs:
  build:
    if: "github.repository == 'OpenMathLib/OpenBLAS'"
    runs-on: macos-14

    strategy:
      fail-fast: false
      matrix:
        build: [cmake, make]
        fortran: [gfortran]
        openmp: [0, 1]
        ilp64: [0, 1]
        
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Print system information
        run: |
          if [ "$RUNNER_OS" == "Linux" ]; then
            cat /proc/cpuinfo
          elif [ "$RUNNER_OS" == "macOS" ]; then
            sysctl -a | grep machdep.cpu
          else
            echo "::error::$RUNNER_OS not supported"
            exit 1
          fi

      - name: Install Dependencies
        run: |
          if [ "$RUNNER_OS" == "Linux" ]; then
            sudo apt-get install -y gfortran cmake ccache libtinfo5
          elif [ "$RUNNER_OS" == "macOS" ]; then
            # It looks like "gfortran" isn't working correctly unless "gcc" is re-installed.
            brew reinstall gcc
            brew install coreutils cmake ccache
            brew install llvm
          else
            echo "::error::$RUNNER_OS not supported"
            exit 1
          fi

      - name: Compilation cache
        uses: actions/cache@v3
        with:
          path: ~/.ccache
          # We include the commit sha in the cache key, as new cache entries are
          # only created if there is no existing entry for the key yet.
          # GNU make and cmake call the compilers differently. It looks like
          # that causes the cache to mismatch. Keep the ccache for both build
          # tools separate to avoid polluting each other.
          key: ccache-${{ runner.os }}-${{ matrix.build }}-${{ matrix.fortran }}-${{ github.ref }}-${{ github.sha }}
          # Restore a matching ccache cache entry. Prefer same branch and same Fortran compiler.
          restore-keys: |
            ccache-${{ runner.os }}-${{ matrix.build }}-${{matrix.fortran }}-${{ github.ref }}
            ccache-${{ runner.os }}-${{ matrix.build }}-${{matrix.fortran }}
            ccache-${{ runner.os }}-${{ matrix.build }}

      - name: Configure ccache
        run: |
          if [ "${{ matrix.build }}" = "make" ]; then
            # Add ccache to path
            if [ "$RUNNER_OS" = "Linux" ]; then
              echo "/usr/lib/ccache" >> $GITHUB_PATH
            elif [ "$RUNNER_OS" = "macOS" ]; then
              echo "$(brew --prefix)/opt/ccache/libexec" >> $GITHUB_PATH
              echo "/opt/homebrew/opt/llvm/bin" >>$GITHUB_PATH
              echo "" >>$GITHUB_PATH
            else
              echo "::error::$RUNNER_OS not supported"
              exit 1
            fi
          fi
          # Limit the maximum size and switch on compression to avoid exceeding the total disk or cache quota (5 GB).
          test -d ~/.ccache || mkdir -p ~/.ccache
          echo "max_size = 300M" > ~/.ccache/ccache.conf
          echo "compression = true" >> ~/.ccache/ccache.conf
          ccache -s

      - name: Build OpenBLAS
        run: |
          export LDFLAGS="-L/opt/homebrew/opt/llvm/lib"
          export CPPFLAGS="-I/opt/homebrew/opt/llvm/include"
          export CC="/opt/homebrew/opt/llvm/bin/clang"
          case "${{ matrix.build }}" in
            "make")
              make -j$(nproc) DYNAMIC_ARCH=1 USE_OPENMP=${{matrix.openmp}} INTERFACE64=${{matrix.ilp64}} FC="ccache ${{ matrix.fortran }}"
              ;;
            "cmake")
              export LDFLAGS="$LDFLAGS -Wl,-ld_classic"
              mkdir build && cd build
              cmake -DDYNAMIC_ARCH=1 \
                    -DUSE_OPENMP=${{matrix.openmp}} \
                    -DINTERFACE64=${{matrix.ilp64}} \
                    -DNOFORTRAN=0 \
                    -DBUILD_WITHOUT_LAPACK=0 \
                    -DCMAKE_VERBOSE_MAKEFILE=ON \
                    -DCMAKE_BUILD_TYPE=Release \
                    -DCMAKE_Fortran_COMPILER=${{ matrix.fortran }} \
                    -DCMAKE_C_COMPILER_LAUNCHER=ccache \
                    -DCMAKE_Fortran_COMPILER_LAUNCHER=ccache \
                    ..
              cmake --build .
              ;;
            *)
              echo "::error::Configuration not supported"
              exit 1
              ;;
          esac

      - name: Show ccache status
        continue-on-error: true
        run: ccache -s

      - name: Run tests
        timeout-minutes: 60
        run: |
          case "${{ matrix.build }}" in
            "make")
              MAKE_FLAGS='DYNAMIC_ARCH=1 USE_OPENMP=0'
              echo "::group::Tests in 'test' directory"
              make -C test $MAKE_FLAGS FC="ccache ${{ matrix.fortran }}"
              echo "::endgroup::"
              echo "::group::Tests in 'ctest' directory"
              make -C ctest $MAKE_FLAGS FC="ccache ${{ matrix.fortran }}"
              echo "::endgroup::"
              echo "::group::Tests in 'utest' directory"
              make -C utest $MAKE_FLAGS FC="ccache ${{ matrix.fortran }}"
              echo "::endgroup::"
              ;;
            "cmake")
              cd build && ctest
              ;;
            *)
              echo "::error::Configuration not supported"
              exit 1
              ;;
          esac