# Copyright (c) 2020 Mohammad Ashar Khan
# Copyright (c) 2021 Cem Bassoy
# Distributed under Boost Software License, Version 1.0
# (See accompanying file LICENSE_1_0.txt or copy at http://boost.org/LICENSE_1_0.txt)

name: "Linux"

on: 
  push:
    paths-ignore: 
      - '**.md'
      - 'doc/**'
  pull_request:
    paths-ignore: 
      - '**.md'
      - 'doc/**'

jobs:
  build:
    name: Ubuntu 20.04 "cxx=${{matrix.config.cxx}}, std=c++${{matrix.config.cxxstd}}, variant=c++${{matrix.config.variant}}"
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: true
      # If any compiler fails to compile, continue CI for next compiler in matrix instead of failing early
      matrix:
        config: 
          - { name: clang, cc: clang-10, cxx: clang++-10, cxxstd: 20, variant: debug,   opt: off}
          - { name: clang, cc: clang-11, cxx: clang++-11, cxxstd: 20, variant: debug,   opt: off}
          - { name: clang, cc: clang-10, cxx: clang++-10, cxxstd: 20, variant: release, opt: speed, cxxflags: -fopenmp, ldflags: -lgomp=libomp5}
          - { name: clang, cc: clang-11, cxx: clang++-11, cxxstd: 20, variant: release, opt: speed, cxxflags: -fopenmp, ldflags: -lgomp=libomp5}
          - { name: gcc,   cc: gcc-10,   cxx: g++-10,     cxxstd: 20, variant: debug,   opt: off}
          - { name: gcc,   cc: gcc-10,   cxx: g++-10,     cxxstd: 20, variant: release, opt: speed, cxxflags: -fopenmp, ldflags: -lgomp}
                   
    steps:
    - uses: actions/checkout@v2
    
    - name: Install g++-10
      if: matrix.config.cxx == 'g++-10'
      run: sudo apt update && sudo apt-get install -y g++-10 libomp-dev    
       
    - name: Install Clang 10
      if: matrix.config.cxx == 'clang++-10'
      run: sudo apt-get update && sudo apt-get install -y clang-10
        
    - name: Install Clang 11
      if: matrix.config.cxx == 'clang++-11'
      run: sudo apt-get update && sudo apt-get install -y clang-11
        
    - name: Git Clone Boost.uBlas
      run: |
        cd ${GITHUB_WORKSPACE}
        cd ..
        
        git clone -b master --depth 1 https://github.com/boostorg/boost.git boost-root
        cd boost-root
        echo "BOOST_ROOT=${PWD}" >> ${GITHUB_ENV}
        echo $BOOST_ROOT
        
        git submodule update --init --depth=1 --jobs 8 tools/build
        git submodule update --init --depth=1 --jobs 8 libs/config
        git submodule update --init --depth=1 --jobs 8 tools/boostdep
        
        mkdir -p libs/numeric/
        cp -rp ${GITHUB_WORKSPACE}/. libs/numeric/ublas
        python tools/boostdep/depinst/depinst.py -g " --depth=1" -I benchmarks numeric/ublas         

    - name: Bootstrap Boost and Compile Boost
      run: |
        cd $BOOST_ROOT
        ./bootstrap.sh
        ./b2 -j8 headers
        echo "using ${{ matrix.config.name }} : : ${{ matrix.config.cxx }} ;" >> ~/user-config.jam;
       
#    - name: Test Benchmarks
#      run: |
#        cd $BOOST_ROOT
#        cd libs/numeric/ublas
#        $BOOST_ROOT/b2 -j 4 benchmarks toolset=clang cxxstd=${{matrix.config.cxxstd}} cxxflags="-O3"
        
    - name: Test Tensor Examples
      run: |
        cd $BOOST_ROOT/libs/numeric/ublas
        if [ -z "$cxxflags" ]
        then
          $BOOST_ROOT/b2 -j8 examples/tensor toolset=${{matrix.config.name}} cxxstd=${{matrix.config.cxxstd}} variant=${{matrix.config.variant}} optimization=${{matrix.config.opt}}
        else
          $BOOST_ROOT/b2 -j8 examples/tensor toolset=${{matrix.config.name}} cxxstd=${{matrix.config.cxxstd}} variant=${{matrix.config.variant}} optimization=${{matrix.config.opt}} cxxflags="${{matrix.config.cxxflags}}" linkflags="${{matrix.config.ldflags}}"
        fi
        
    - name: Test Tensor Unit-Tests
      run: |
        cd $BOOST_ROOT/libs/numeric/ublas
        if [ -z "$cxxflags" ]
        then
          $BOOST_ROOT/b2 -j8 test/tensor toolset=${{matrix.config.name}} cxxstd=${{matrix.config.cxxstd}} variant=${{matrix.config.variant}} optimization=${{matrix.config.opt}}
        else
          $BOOST_ROOT/b2 -j8 test/tensor toolset=${{matrix.config.name}} cxxstd=${{matrix.config.cxxstd}} variant=${{matrix.config.variant}} optimization=${{matrix.config.opt}} cxxflags="${{matrix.config.cxxflags}}" linkflags="${{matrix.config.ldflags}}"
        fi