ci.yml

# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

name: CI

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:
    # Skip CI if [ci skip] in the commit message
    if: "! contains(toJSON(github.event.commits.*.message), '[ci skip]')"
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: [3.6]  # Deactivate 3.5 build as it is not longer maintained

    steps:
    - uses: actions/checkout@v2
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}
    - name: Install dependencies
      run: |
        sudo apt-get install libopenmpi-dev
        python -m pip install --upgrade pip
        pip install wheel
        pip install .[mpi,tests,docs]
        # Use headless version
        pip install opencv-python-headless
        # Tmp fix: ROM missing in the newest atari-py version
        pip install atari-py==0.2.5
    - name: MPI
      run: |
        # check MPI
        mpirun -h
        python -c "import mpi4py; print(mpi4py.__version__)"
        mpirun --allow-run-as-root -np 2 python -m stable_baselines.common.mpi_adam
        mpirun --allow-run-as-root -np 2 python -m stable_baselines.ppo1.experiments.train_cartpole
        mpirun --allow-run-as-root -np 2 python -m stable_baselines.common.mpi_running_mean_std
        # MPI requires 3 processes to run the following code
        # but will throw an error on GitHub CI as there is only two threads
        # mpirun --allow-run-as-root -np 3 python -c "from stable_baselines.common.mpi_moments import _helper_runningmeanstd; _helper_runningmeanstd()"

    - name: Build the doc
      run: |
        make doc
    - name: Type check
      run: |
        make type
    - name: Test with pytest
      run: |
        # Prevent issues with multiprocessing
        DEFAULT_START_METHOD=fork make pytest