name: CI
on: [push, pull_request]

# Run linter with github actions for quick feedbacks.
# Run macos tests with github actions. Linux (CPU & GPU) tests currently runs on CircleCI
jobs:
  linter:
    runs-on: ubuntu-latest
    # run on PRs, or commits to facebookresearch (not internal)
    if: ${{ github.repository_owner == 'facebookresearch' || github.event_name == 'pull_request' }}
    steps:
      - uses: actions/checkout@v2
      - name: Set up Python 3.6
        uses: actions/setup-python@v2
        with:
          python-version: 3.6
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          python -m pip install flake8==3.8.1 flake8-bugbear flake8-comprehensions isort==4.3.21
          python -m pip install black==20.8b1
          flake8 --version
      - name: Lint
        run: |
          echo "Running isort"
          isort -c -sp .
          echo "Running black"
          black -l 100 --check .
          echo "Running flake8"
          flake8 .

  macos_tests:
    runs-on: macos-latest
    # run on PRs, or commits to facebookresearch (not internal)
    if: ${{ github.repository_owner == 'facebookresearch' || github.event_name == 'pull_request' }}
    strategy:
      matrix:
        torch: [1.5, 1.6, 1.7]
        include:
          - torch: 1.5
            torchvision: 0.6
          - torch: 1.6
            torchvision: 0.7
          - torch: 1.7
            torchvision: 0.8
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Set up Python 3.6
        uses: actions/setup-python@v2
        with:
          python-version: 3.6
      - name: Cache dependencies
        uses: actions/cache@v2
        with:
          path: |
            ${{ env.pythonLocation }}/lib/python3.6/site-packages
            ~/.torch
          key: ${{ runner.os }}-torch${{ matrix.torch }}-${{ hashFiles('setup.py') }}-20200709

      - name: Install dependencies
        run: |
          python -m pip install -U pip
          python -m pip install ninja opencv-python-headless onnx pytest-xdist
          python -m pip install torch==${{matrix.torch}} torchvision==${{matrix.torchvision}} -f https://download.pytorch.org/whl/torch_stable.html
          python -m pip install -U 'git+https://github.com/facebookresearch/fvcore'

      - name: Build and install
        run: |
          CC=clang CXX=clang++ python -m pip install -e .[all]
          python -m detectron2.utils.collect_env
      - name: Run unittests
        run: python -m pytest -n 4 -v tests/