add release date - update docs #1247

	name: Build and upload to PyPI

	on: [push, pull_request]

	jobs:
	build_wheels:
	name: Build wheels on ${{ matrix.os }}
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-20.04, windows-2019, macos-11]

	steps:
	- uses: actions/checkout@v2

	- name: Set up QEMU
	if: runner.os == 'Linux'
	uses: docker/setup-qemu-action@v1
	with:
	platforms: all

	- name: Build wheels
	uses: pypa/cibuildwheel@v2.16.1
	# to supply options, put them in 'env', like:
	env:
	# configure cibuildwheel to build native archs ('auto'), and some
	# emulated ones
	CIBW_ARCHS_LINUX: auto aarch64 ppc64le s390x
	CIBW_ARCHS_MACOS: x86_64 universal2 arm64
	CIBW_TEST_COMMAND: python -c "import bitarray; assert bitarray.test().wasSuccessful()"

	- uses: actions/upload-artifact@v2
	with:
	path: ./wheelhouse/*.whl

	build_sdist:
	name: Build source distribution
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Build sdist
	run: pipx run build --sdist

	- uses: actions/upload-artifact@v2
	with:
	path: dist/*.tar.gz

	upload_pypi:
	needs: [build_wheels, build_sdist]
	runs-on: ubuntu-latest
	# upload to PyPI on every tag
	if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags/')
	steps:
	- uses: actions/download-artifact@v2
	with:
	name: artifact
	path: dist

	- uses: pypa/gh-action-pypi-publish@v1.4.2
	with:
	user: __token__
	password: ${{ secrets.PYPI_API_TOKEN }}

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