name: GitHub Actions

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

jobs:
  test:
    name: ${{ matrix.task }} (${{ matrix.os }}, ${{ matrix.compiler }})
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            task: r-package
            compiler: gcc
          - os: ubuntu-latest
            task: r-package
            compiler: clang
          - os: macOS-latest
            task: r-package
            compiler: gcc
          - os: macOS-latest
            task: r-package
            compiler: clang
    steps:
      - name: Checkout repository
        uses: actions/checkout@v1
        with:
          fetch-depth: 5
          submodules: true
      - name: Setup and run tests on Linux and macOS
        if: matrix.os != 'windows-latest'
        shell: bash
        run: |
          export TASK="${{ matrix.task }}"
          export COMPILER="${{ matrix.compiler }}"
          export GITHUB_ACTIONS="true"
          if [[ "${{ matrix.os }}" == "macOS-latest" ]]; then
              export OS_NAME="macos"
              export R_MAC_VERSION=3.6.3
          elif [[ "${{ matrix.os }}" == "ubuntu-latest" ]]; then
              export OS_NAME="linux"
              export R_LINUX_VERSION=3.6.3-1bionic;
          fi
          export BUILD_DIRECTORY="$GITHUB_WORKSPACE"
          export CONDA_ENV="test-env"
          export CONDA="$HOME/miniconda"
          export PATH="$CONDA/bin:${HOME}/.local/bin:$PATH"
          export LGB_VER=$(head -n 1 VERSION.txt)
          $GITHUB_WORKSPACE/.ci/setup.sh
          $GITHUB_WORKSPACE/.ci/test.sh