build

Reinstate musllinux and PyPy wheels #276

	name: build

	on:
	push:
	branches:
	- main
	pull_request:
	release:
	types:
	- published

	jobs:

	source:
	name: Build source package
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4

	- run: pip install build && python -m build --sdist

	- uses: actions/upload-artifact@v4
	with:
	name: source
	path: dist/*

	wheels:
	name: Build binary packages
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, macos-latest, macos-14, windows-latest]

	steps:
	- uses: actions/checkout@v4

	- name: Set up QEMU
	if: runner.os == 'Linux'
	uses: docker/setup-qemu-action@v3
	with:
	platforms: arm64

	# See https://docs.scipy.org/doc/scipy/building/index.html
	- name: Install MinGW
	if: runner.os == 'Windows'
	run: \|
	choco install rtools -y --no-progress --force --version=4.0.0.20220206
	echo "c:\rtools40\ucrt64\bin;" >> $env:GITHUB_PATH

	- name: Build wheels
	uses: pypa/cibuildwheel@v2.16
	env:
	CIBW_ARCHS_LINUX: auto aarch64
	CIBW_ARCHS_WINDOWS: AMD64
	CIBW_ENVIRONMENT_MACOS: FC=gfortran-11
	# Skip 32-bit Intel wheels
	CIBW_SKIP: '*_i686'

	- uses: actions/upload-artifact@v4
	with:
	name: ${{ matrix.os }}
	path: wheelhouse/*

	publish:
	name: Publish to PyPI
	runs-on: ubuntu-latest
	permissions:
	id-token: write
	needs: [source, wheels]
	if: github.event_name == 'release'
	steps:
	- uses: actions/download-artifact@v4
	with:
	merge-multiple: true
	path: dist
	- uses: pypa/gh-action-pypi-publish@release/v1

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