Change build backend to hatchling #7

	name: Build and upload to PyPI

	# Build on every branch push, tag push, and pull request change:
	on: [push, pull_request, workflow_dispatch]
	# Alternatively, to publish when a (published) GitHub Release is created, use the following:
	# on:
	# push:
	# pull_request:
	# release:
	# types:
	# - published

	jobs:
	build_sdist:
	name: Build source distribution
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	submodules: true

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

	- name: Check metadata
	run: pipx run twine check dist/*

	- uses: actions/upload-artifact@v4
	with:
	name: sdist
	path: dist/*.tar.gz

	upload_pypi:
	needs: [build_sdist]
	runs-on: ubuntu-latest
	# upload to PyPI on every tag starting with 'v'
	if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
	# alternatively, to publish when a GitHub Release is created, use the following rule:
	# if: github.event_name == 'release' && github.event.action == 'published'
	steps:
	- uses: actions/download-artifact@v4
	with:
	path: dist
	pattern: "*"
	merge-multiple: true

	- uses: softprops/action-gh-release@v2
	if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
	with:
	files: \|
	dist/*.tar.gz
	dist/*.whl

	- uses: pypa/gh-action-pypi-publish@release/v1
	with:
	user: __token__
	password: ${{ secrets.PYPI_API_TOKEN }}
	# To test
	# password: ${{ secrets.TEST_PYPI_API_TOKEN }}
	# repository_url: https://test.pypi.org/legacy/

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