version: 2.1

orbs:
  codecov: codecov/codecov@1.1.1

executors:
  ubuntu-16_04:
    docker:
    - image: ubuntu:xenial-20201014
  xcode-10_3:
    macos:
      xcode: 10.3.0

commands:
  install-base-linux:
    parameters:
      extra:
        type: string
        default: ""
    steps:
    - run:
        name: Update apt and install base packages
        # Git is needed always for cloning Corrade etc
        command: |
          apt update
          if [[ "$CMAKE_CXX_FLAGS" == *"--coverage"* ]]; then export LCOV_PACKAGES="lcov curl"; fi
          apt install -y git ninja-build $LCOV_PACKAGES << parameters.extra >>

  install-base-macos:
    parameters:
      extra:
        type: string
        default: ""
    steps:
    - run:
        # ninja needs python@3.9 as a dependency FOR SOME FUCKING REASON and
        # when THE DAMN THING installs it, it proceeds with reinstalling
        # python@2. FROM SOURCES! FUCK! and then it fails to link it because
        # NO SHIT, python@3.9 is already installed! HOW THE FUCK ARE PEOPLE
        # ABLE TO DEAL WITH SUCH CURSED SHIT ALL THE TIME?! FUCK OFF
        name: Remove Python 2 curse
        command: |
          HOMEBREW_NO_AUTO_UPDATE=1 brew uninstall python@2
    - run:
        name: Install base packages
        # As usual, homebrew takes five minutes to update and then explodes in
        # a spectacular way. How is this acceptable?!
        command: |
          if [[ "$CMAKE_CXX_FLAGS" == *"--coverage"* ]]; then export LCOV_PACKAGES="lcov"; fi
          HOMEBREW_NO_AUTO_UPDATE=1 brew install cmake ninja $LCOV_PACKAGES << parameters.extra >>

  install-gcc-4_8:
    steps:
    - run:
        name: Install GCC 4.8
        # For some reason, CMake needs a working C compiler, so provice CC as
        # well for the case when default gcc isn't installed.
        command: |
          apt install -y g++-4.8
          echo 'export CC=gcc-4.8' >> $BASH_ENV
          echo 'export CXX=g++-4.8' >> $BASH_ENV

  install-cmake-3_4:
    steps:
    - run:
        name: Install CMake 3.4
        command: |
          apt install -y wget
          mkdir -p $HOME/cmake && cd $HOME/cmake
          wget -nc --no-check-certificate https://cmake.org/files/v3.4/cmake-3.4.3-Linux-x86_64.tar.gz
          tar --strip-components=1 -xzf cmake-3.4.3-Linux-x86_64.tar.gz
          echo 'export PATH=$HOME/cmake/bin:$PATH' >> $BASH_ENV
          source $BASH_ENV && cmake --version | grep 3.4

  install-python-3_6:
    # Can't use the python3.6 docker image because there I can't install GCC
    # 4.8. Loosely based on https://gist.github.com/monkut/c4c07059444fd06f3f8661e13ccac619
    steps:
    - run:
        name: Install Python 3.6 and numpy
        # The software-properties-common need to be installed in order to have
        # apt-add-repository. Sigh, adding a repository should be a core
        # feature ffs!
        #
        # Also, "Press ENTER to continue." Are we still in the DOS days?!
        #
        # Setting up 3.6 as the default is OF COURSE one command more than
        # would be acceptable, but am I surprised on this distro?!
        command: |
          apt install -y software-properties-common
          echo -e "\n" | add-apt-repository ppa:deadsnakes/ppa
          apt update
          apt install -y python3.6 python3.6-dev python3-pip

          update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 10

          python3 --version | grep 3.6

          python3 -m pip install pip --upgrade
          python3 -m pip install wheel

          pip3 install numpy

  install-pybind11:
    steps:
    - run:
        name: Install Pybind11
        command: |
          cd $HOME
          export PYBIND_VERSION=2.3.0
          wget --no-clobber https://github.com/pybind/pybind11/archive/v$PYBIND_VERSION.tar.gz
          tar -xzf v$PYBIND_VERSION.tar.gz
          cd pybind11-$PYBIND_VERSION
          mkdir -p build && cd build
          cmake .. \
            -DCMAKE_INSTALL_PREFIX=$HOME/pybind11 \
            -DPYBIND11_PYTHON_VERSION=3.6 \
            -DPYBIND11_TEST=OFF \
            -G Ninja
          ninja install

  install-swiftshader-gles:
    parameters:
      build:
        type: string
    steps:
    - run:
        name: Install SwiftShader GLES
        # Zip from https://github.com/mosra/magnum-ci/tree/swiftshader and
        # self-hosted because GH Actions would make it too simple for people if
        # you could just download the artifacts directly, right? RIGHT?
        command: |
          mkdir -p $HOME/swiftshader && cd $HOME/swiftshader
          wget https://ci.magnum.graphics/swiftshader-gles-r5464.a6940c8e6e-<< parameters.build >>.zip
          unzip swiftshader-gles-r5464.a6940c8e6e-<< parameters.build >>.zip

  build:
    parameters:
      script:
        type: string
    steps:
    - run:
        name: Install coverage and codecov
        command: pip3 install coverage codecov
    - checkout
    - run:
        name: Build & test
        command: |
          if [ "$BUILD_STATIC" != "ON" ]; then export BUILD_STATIC=OFF; fi
          if [ "$BUILD_DEPRECATED" != "OFF" ]; then export BUILD_DEPRECATED=ON; fi
          ./package/ci/<< parameters.script >>

  lcov:
    steps:
    - run:
        name: Collect code coverage
        # Keep in sync with PKBUILD-coverage and travis.yml, please
        command: |
          lcov $LCOV_EXTRA_OPTS --directory . --capture --output-file coverage.info > /dev/null
          lcov $LCOV_EXTRA_OPTS --extract coverage.info "*/src/python/*" "*/src/Corrade/*" "*/src/Magnum/*" --output-file coverage.info > /dev/null
          cd src/python && coverage combine
    - codecov/upload:
        file: coverage.info

jobs:
  linux-gl:
    executor: ubuntu-16_04
    environment:
      CMAKE_CXX_FLAGS: --coverage
      LCOV_EXTRA_OPTS: --gcov-tool /usr/bin/gcov-4.8
      PLATFORM_GL_API: GLX
      # It crashes (OOM, probably) with the default setting
      NINJA_JOBS: -j2
    steps:
    - install-base-linux:
        extra: libgl1-mesa-dev libsdl2-dev libglfw3-dev
    - install-gcc-4_8
    - install-cmake-3_4
    - install-python-3_6
    - install-pybind11
    - build:
        script: unix-desktop.sh
    - lcov

  linux-gles2:
    executor: ubuntu-16_04
    environment:
      CMAKE_CXX_FLAGS: --coverage
      LCOV_EXTRA_OPTS: --gcov-tool /usr/bin/gcov-4.8
      PLATFORM_GL_API: EGL
      # STUPID yml interprets unquoted ON as a boolean
      TARGET_GLES2: "ON"
      # It crashes (OOM, probably) with the default setting
      NINJA_JOBS: -j2
    steps:
    - install-base-linux:
        extra: libsdl2-dev libglfw3-dev wget unzip
    - install-gcc-4_8
    - install-cmake-3_4
    - install-python-3_6
    - install-pybind11
    - install-swiftshader-gles:
        build: ubuntu-16.04
    - build:
        script: unix-desktop-gles.sh
    - lcov

  linux-gles3:
    executor: ubuntu-16_04
    environment:
      CMAKE_CXX_FLAGS: --coverage
      LCOV_EXTRA_OPTS: --gcov-tool /usr/bin/gcov-4.8
      PLATFORM_GL_API: EGL
      # STUPID yml interprets unquoted OFF as a boolean
      TARGET_GLES2: "OFF"
      # It crashes (OOM, probably) with the default setting
      NINJA_JOBS: -j2
    steps:
    - install-base-linux:
        extra: libsdl2-dev libglfw3-dev wget unzip
    - install-gcc-4_8
    - install-cmake-3_4
    - install-python-3_6
    - install-pybind11
    - install-swiftshader-gles:
        build: ubuntu-16.04
    - build:
        script: unix-desktop-gles.sh
    - lcov

  linux-static:
    executor: ubuntu-16_04
    environment:
      # STUPID yml interprets unquoted ON as a boolean
      # https://stackoverflow.com/questions/53648244/specifying-the-string-value-yes-in-a-yaml-property
      BUILD_STATIC: "ON"
      CMAKE_CXX_FLAGS: --coverage
      LCOV_EXTRA_OPTS: --gcov-tool /usr/bin/gcov-4.8
      PLATFORM_GL_API: GLX
      # It crashes (OOM, probably) with the default setting
      NINJA_JOBS: -j2
    steps:
    - install-base-linux:
        extra: libsdl2-dev libglfw3-dev
    - install-gcc-4_8
    - install-cmake-3_4
    - install-python-3_6
    - install-pybind11
    - build:
        script: unix-desktop.sh
    - lcov

  macos-gl:
    # 10.2 and below has pybind11 2.2, which is just too old (we removed
    # support for that in aae98e0f02e927f993713afc154da1f3673ebb3e, July 2019)
    executor: xcode-10_3
    environment:
      CMAKE_CXX_FLAGS: --coverage
      PLATFORM_GL_API: CGL
    steps:
    - install-base-macos:
        extra: sdl2 glfw numpy pybind11
    - build:
        script: unix-desktop.sh
    - lcov

  macos-static:
    # 10.2 and below has pybind11 2.2, which is just too old (we removed
    # support for that in aae98e0f02e927f993713afc154da1f3673ebb3e, July 2019)
    executor: xcode-10_3
    environment:
      # STUPID yml interprets unquoted ON as a boolean
      BUILD_STATIC: "ON"
      CMAKE_CXX_FLAGS: --coverage
      PLATFORM_GL_API: CGL
    steps:
    - install-base-macos:
        extra: sdl2 glfw numpy pybind11
    - build:
        script: unix-desktop.sh
    - lcov

workflows:
  version: 2
  build:
    jobs:
    - linux-gl
    - linux-gles2
    - linux-gles3
    - linux-static
    - macos-gl
    - macos-static