Made conversion on enum fields to List[str] optional #469

	name: Code CI

	on:
	push:
	pull_request:

	jobs:
	build:
	strategy:
	fail-fast: false
	matrix:
	os: ["ubuntu-latest"] # can add windows-latest, macos-latest
	python: ["3.7", "3.8", "3.9"]

	include:
	# Tag the Python3.7 runner as the one to publish wheels
	- os: "ubuntu-latest"
	python: "3.7"
	publish: true

	name: ${{ matrix.os }}/${{ matrix.python }}
	runs-on: ${{ matrix.os }}

	steps:
	- name: Checkout Source
	uses: actions/checkout@v2

	- name: Set up Python ${{ matrix.python }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python }}

	- name: Install Python Dependencies
	run: \|
	pip install pipenv twine build
	pipenv install --dev --deploy --python $(python -c 'import sys; print(sys.executable)') && pipenv graph

	- name: Create Sdist and Wheel
	if: matrix.publish
	# Set SOURCE_DATE_EPOCH from git commit for reproducible build
	# https://reproducible-builds.org/
	# Set group writable and umask to do the same to match inside DLS
	run: \|
	chmod -R g+w .
	umask 0002
	SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct) python -m build --sdist --wheel

	- name: Run Tests
	run: pipenv run tests

	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v1
	with:
	name: ${{ matrix.os }}/${{ matrix.python }}
	files: cov.xml

	- name: Upload Wheel and Sdist as artifacts
	if: matrix.publish
	uses: actions/upload-artifact@v2
	with:
	name: dist
	path: dist/*

	- name: Publish Sdist and Wheel to PyPI
	# Only once when on a tag
	if: matrix.publish && startsWith(github.ref, 'refs/tags')
	env:
	TWINE_USERNAME: __token__
	TWINE_PASSWORD: ${{ secrets.pypi_token }}
	run: twine upload dist/*

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