name: R-package

on:
  push:
    branches:
    - master
  pull_request:
    branches:
    - master

env:
  # hack to get around this:
  # https://stat.ethz.ch/pipermail/r-package-devel/2020q3/005930.html
  _R_CHECK_SYSTEM_CLOCK_: 0
  # ignore R CMD CHECK NOTE checking how long it has
  # been since the last submission
  _R_CHECK_CRAN_INCOMING_REMOTE_: 0
  # CRAN ignores the "installed size is too large" NOTE,
  # so our CI can too. Setting to a large value here just
  # to catch extreme problems
  _R_CHECK_PKG_SIZES_THRESHOLD_: 100

jobs:
  test:
    name: ${{ matrix.task }} (${{ matrix.os }}, ${{ matrix.compiler }}, R ${{ matrix.r_version }}, ${{ matrix.build_type }})
    runs-on: ${{ matrix.os }}
    timeout-minutes: 60
    strategy:
      fail-fast: false
      matrix:
        include:
          ################
          # CMake builds #
          ################
          - os: ubuntu-latest
            task: r-package
            compiler: gcc
            r_version: 3.6
            build_type: cmake
          - os: ubuntu-latest
            task: r-package
            compiler: gcc
            r_version: 4.0
            build_type: cmake
          - os: ubuntu-latest
            task: r-package
            compiler: clang
            r_version: 3.6
            build_type: cmake
          - os: ubuntu-latest
            task: r-package
            compiler: clang
            r_version: 4.0
            build_type: cmake
          - os: macOS-latest
            task: r-package
            compiler: gcc
            r_version: 3.6
            build_type: cmake
          - os: macOS-latest
            task: r-package
            compiler: gcc
            r_version: 4.0
            build_type: cmake
          - os: macOS-latest
            task: r-package
            compiler: clang
            r_version: 3.6
            build_type: cmake
          - os: macOS-latest
            task: r-package
            compiler: clang
            r_version: 4.0
            build_type: cmake
          - os: windows-latest
            task: r-package
            compiler: MINGW
            toolchain: MINGW
            r_version: 3.6
            build_type: cmake
          - os: windows-latest
            task: r-package
            compiler: MINGW
            toolchain: MSYS
            r_version: 4.0
            build_type: cmake
          # Visual Studio 2017
          - os: windows-2016
            task: r-package
            compiler: MSVC
            toolchain: MSVC
            r_version: 3.6
            build_type: cmake
          # Visual Studio 2019
          - os: windows-2019
            task: r-package
            compiler: MSVC
            toolchain: MSVC
            r_version: 4.0
            build_type: cmake
          ###############
          # CRAN builds #
          ###############
          - os: windows-latest
            task: r-package
            compiler: MINGW
            toolchain: MINGW
            r_version: 3.6
            build_type: cran
          - os: windows-latest
            task: r-package
            compiler: MINGW
            toolchain: MSYS
            r_version: 4.0
            build_type: cran
          - os: ubuntu-latest
            task: r-package
            compiler: gcc
            r_version: 4.0
            build_type: cran
          - os: macOS-latest
            task: r-package
            compiler: clang
            r_version: 4.0
            build_type: cran
          ################
          # Other checks #
          ################
          - os: ubuntu-latest
            task: r-rchk
            compiler: gcc
            r_version: 4.0
            build_type: cran
    steps:
      - name: Prevent conversion of line endings on Windows
        if: startsWith(matrix.os, 'windows')
        shell: pwsh
        run: git config --global core.autocrlf false
      - name: Checkout repository
        uses: actions/checkout@v2.3.4
        with:
          fetch-depth: 5
          submodules: true
      - name: Install pandoc
        uses: r-lib/actions/setup-pandoc@v1
      - name: Setup and run tests on Linux and macOS
        if: matrix.os == 'macOS-latest' || matrix.os == 'ubuntu-latest'
        shell: bash
        run: |
          export TASK="${{ matrix.task }}"
          export COMPILER="${{ matrix.compiler }}"
          export GITHUB_ACTIONS="true"
          if [[ "${{ matrix.os }}" == "macOS-latest" ]]; then
              export OS_NAME="macos"
          elif [[ "${{ matrix.os }}" == "ubuntu-latest" ]]; then
              export OS_NAME="linux"
          fi
          export BUILD_DIRECTORY="$GITHUB_WORKSPACE"
          export R_VERSION="${{ matrix.r_version }}"
          export R_BUILD_TYPE="${{ matrix.build_type }}"
          $GITHUB_WORKSPACE/.ci/setup.sh
          $GITHUB_WORKSPACE/.ci/test.sh
      - name: Setup and run tests on Windows
        if: startsWith(matrix.os, 'windows')
        shell: pwsh -command ". {0}"
        run: |
          $env:BUILD_SOURCESDIRECTORY = $env:GITHUB_WORKSPACE
          $env:TOOLCHAIN = "${{ matrix.toolchain }}"
          $env:R_VERSION = "${{ matrix.r_version }}"
          $env:R_BUILD_TYPE = "${{ matrix.build_type }}"
          $env:COMPILER = "${{ matrix.compiler }}"
          $env:GITHUB_ACTIONS = "true"
          $env:TASK = "${{ matrix.task }}"
          & "$env:GITHUB_WORKSPACE/.ci/test_windows.ps1"
  test-r-sanitizers:
    name: r-sanitizers (ubuntu-latest, R-devel, ${{ matrix.compiler }} ASAN/UBSAN)
    timeout-minutes: 60
    runs-on: ubuntu-latest
    container: wch1/r-debug
    strategy:
      fail-fast: false
      matrix:
        include:
          - r_customization: san
            compiler: gcc
          - r_customization: csan
            compiler: clang
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2.3.4
        with:
          fetch-depth: 5
          submodules: true
      - name: Install packages
        shell: bash
        run: |
          RDscript${{ matrix.r_customization }} -e "install.packages(c('R6', 'data.table', 'jsonlite', 'Matrix', 'testthat'), repos = 'https://cran.r-project.org', Ncpus = parallel::detectCores())"
          sh build-cran-package.sh --r-executable=RD${{ matrix.r_customization }}
          RD${{ matrix.r_customization }} CMD INSTALL lightgbm_*.tar.gz || exit -1
      - name: Run tests with sanitizers
        shell: bash
        run: |
          cd R-package/tests
          exit_code=0
          RDscript${{ matrix.r_customization }} testthat.R >> tests.log 2>&1 || exit_code=1
          cat ./tests.log
          exit ${exit_code}
  test-r-debian-clang:
    name: r-package (debian, R-devel, clang)
    timeout-minutes: 60
    runs-on: ubuntu-latest
    container: rhub/debian-clang-devel
    steps:
      - name: Install Git before checkout
        shell: bash
        run: |
          apt-get update --allow-releaseinfo-change
          apt-get install --no-install-recommends -y git
      - name: Checkout repository
        uses: actions/checkout@v2.3.4
        with:
          fetch-depth: 5
          submodules: true
      - name: Install packages and run tests
        shell: bash
        run: |
          export PATH=/opt/R-devel/bin/:${PATH}
          Rscript -e "install.packages(c('R6', 'data.table', 'jsonlite', 'Matrix', 'testthat'), repos = 'https://cran.r-project.org', Ncpus = parallel::detectCores())"
          sh build-cran-package.sh
          R CMD check --as-cran --run-donttest lightgbm_*.tar.gz || exit -1
          if grep -q -E "NOTE|WARNING|ERROR" lightgbm.Rcheck/00check.log; then
              echo "NOTEs, WARNINGs, or ERRORs have been found by R CMD check"
              exit -1
          fi
  all-successful:
    # https://github.community/t/is-it-possible-to-require-all-github-actions-tasks-to-pass-without-enumerating-them/117957/4?u=graingert
    runs-on: ubuntu-latest
    needs: [test, test-r-sanitizers, test-r-debian-clang]
    steps:
    - name: Note that all tests succeeded
      run: echo "🎉"