version: 2
jobs:
  # =======================================================================================
  # Python 3.6 testing.
  # =======================================================================================
  test-3.6:
    docker:
      - image: python:3.6
    working_directory: ~/spleeter
    steps:
      - checkout
      - run:
          name: install ffmpeg
          command: apt-get update && apt-get install -y ffmpeg
      - run:
          name: install python dependencies
          command: pip install -r requirements.txt && pip install pytest
      - run:
          name: pytest
          command: pytest -W ignore::FutureWarning -W ignore::DeprecationWarning
  # =======================================================================================
  # Python 3.7 testing.
  # =======================================================================================
  test-3.7:
    docker:
      - image: python:3.7
    working_directory: ~/spleeter
    steps:
      - checkout
      - run:
          name: install ffmpeg
          command: apt-get update && apt-get install -y ffmpeg
      - run:
          name: install python dependencies
          command: pip install -r requirements.txt && pip install pytest
      - run:
          name: pytest
          command: pytest -W ignore::FutureWarning -W ignore::DeprecationWarning
  # =======================================================================================
  # Source distribution packaging.
  # =======================================================================================
  sdist:
    docker:
      - image: python:3
    steps:
      - checkout
      - run:  
          name: package
          command: python setup.py sdist
      - save_cache:
          key: sdist-{{ .Branch }}-{{ checksum "setup.py" }}
          paths:
            - dist
  # =======================================================================================
  # PyPi deployment.
  # =======================================================================================
  pypi-deploy:
    docker:
      - image: python:3
    steps:
      - checkout
      - restore_cache:
          key: sdist-{{ .Branch }}-{{ checksum "setup.py" }}
      - run:
          name: upload to PyPi
          command: pip install twine && twine upload dist/*
workflows:
  version: 2
  spleeter-workflow:
    jobs:
      - test-3.6
      - test-3.7
      - sdist:
          requires:
            - test-3.6
            - test-3.7
      - pypi-deploy:
          filters:
            branches:
              only:
                - master
                - development
          requires:
            - sdist