config.yml

version: 2.1
workflows:
  build_and_deploy:
    jobs:
      - build:
          filters:
            tags:
              only: /.*/
      - test-python-install:
          version: "3.6"
          requires:
            - build
      - test-python-install:
          version: "3.7"
          requires:
            - build
      - deploy:
          requires:
            - build
          filters:
            tags:
              only: /[0-9]+(\.[0-9]+)*[ab]?/
            branches:
              ignore: /.*/
jobs:
  build:
    docker:
      - image: circleci/python:3.6
    steps:
      - checkout
      - restore_cache:
          key: v1-dependency-cache-{{ checksum "setup.py" }}
      - run:
          name: install python dependencies
          command: |
            python3 -m venv venv
            . venv/bin/activate
            pip install -e .[test]
      - save_cache:
          key: v1-dependency-cache-{{ checksum "setup.py" }}
          paths:
            - "venv"
      - run:
          name: run tests
          command: |
            . venv/bin/activate
            pip install -e .[test]
            pytest
  test-python-install:
    parameters:
      version:
        type: string
        default: latest
    docker:
      - image: circleci/python:3.6
    steps:
      - checkout
      - restore_cache:
          key: v1-dependency-cache-{{ checksum "setup.py" }}
      - run:
          name: install python dependencies
          command: |
            python3 -m venv venv
            . venv/bin/activate
            pip install -e .[test]
      - save_cache:
          key: v1-dependency-cache-{{ checksum "setup.py" }}
          paths:
            - "venv"
      - run:
          name: run tests
          command: |
            . venv/bin/activate
            pip install -e .[test]
            pytest
  deploy:
    docker:
      - image: circleci/python:3.6
    steps:
      - checkout
      - restore_cache:
          key: v1-dependency-cache-{{ checksum "setup.py" }}
      - run:
          name: install python dependencies
          command: |
            python3 -m venv venv
            . venv/bin/activate
            pip install -e .[test]
      - save_cache:
          key: v1-dependency-cache-{{ checksum "setup.py" }}
          paths:
            - "venv"
      - run:
          name: init .pypirc
          command: |
            echo -e "[pypi]" >> ~/.pypirc
            echo -e "username = simonw" >> ~/.pypirc
            echo -e "password = $PYPI_PASSWORD" >> ~/.pypirc
      - run:
          name: create packages
          command: |
            python setup.py bdist_wheel
      - run:
          name: upload to pypi
          command: |
            . venv/bin/activate
            pip install twine
            twine upload dist/*