Add support for stackcollapse format. #38

	name: build

	on: [push, pull_request]

	jobs:
	test:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.10']
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 1
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- run: sudo apt-get update -qq
	- run: sudo apt-get install -qq -y --no-install-recommends graphviz
	- run: python --version
	- run: \|
	python -m pip install --upgrade pip
	pip install coverage
	- run: python tests/test.py --coverage
	- uses: codecov/codecov-action@v3

	# https://docs.github.com/en/actions/guides/building-and-testing-python#publishing-to-package-registries
	deploy:
	if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
	needs: test
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 1
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.10'
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install build twine
	- name: Build and publish
	env:
	TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
	TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
	run: \|
	python -m build
	twine check --strict dist/*
	twine upload dist/*
	- name: Create release
	id: create_release
	uses: actions/create-release@v1
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	with:
	tag_name: ${{ github.ref }}
	release_name: ${{ github.ref }}
	draft: false
	prerelease: false

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