Merge pull request #843 from ipython/pre-commit-ci-update-config #1130

	# Build releases and (on tags) publish to PyPI
	name: Release

	# always build releases (to make sure wheel-building works)
	# but only publish to PyPI on tags
	on:
	push:
	branches-ignore:
	- "pre-commit-ci*"
	tags:
	- "*"
	pull_request:

	concurrency:
	group: >-
	${{ github.workflow }}-
	${{ github.ref_type }}-
	${{ github.event.pull_request.number \|\| github.sha }}
	cancel-in-progress: true

	jobs:
	build-release:
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v4
	with:
	python-version: 3.8

	- name: install build package
	run: \|
	pip install --upgrade pip
	pip install build
	pip freeze

	- name: build release
	run: \|
	python -m build --sdist --wheel .
	ls -l dist

	- name: verify wheel
	run: \|
	cd dist
	pip install ./.whl jupyterlab==3.
	ipcluster --help-all
	ipcontroller --help-all
	ipengine --help-all
	jupyter labextension list 2>&1 \| grep ipyparallel
	jupyter server extension list 2>&1 \| grep ipyparallel

	# ref: https://github.com/actions/upload-artifact#readme
	- uses: actions/upload-artifact@v3
	with:
	name: ipyparallel-${{ github.sha }}
	path: "dist/*"
	if-no-files-found: error

	- name: Publish to PyPI
	if: startsWith(github.ref, 'refs/tags/')
	env:
	TWINE_USERNAME: __token__
	TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
	run: \|
	pip install twine
	twine upload --skip-existing dist/*

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