docs: Important OS-Climate project announcement #181

	---
	name: '🧪 Test builds (matrix)'

	# yamllint disable-line rule:truthy
	on:
	workflow_dispatch:
	pull_request:
	types: [opened, reopened, edited, synchronize]

	jobs:
	pre-release:
	# Don't run if pull request is NOT merged
	if: github.event.pull_request.merged == true
	runs-on: 'ubuntu-latest'
	continue-on-error: true
	strategy:
	fail-fast: false
	matrix:
	python-version: ['3.9', '3.10', '3.11']
	steps:
	- name: 'Populate environment variables'
	id: setenv
	run: \|
	echo "Action triggered by user: ${GITHUB_TRIGGERING_ACTOR}"
	set -x
	datetime=$(date +'%Y%m%d%H%M')
	export datetime
	echo "datetime=${datetime}" >> "$GITHUB_OUTPUT"
	vernum="${{ matrix.python-version }}.${datetime}"
	echo "vernum=${vernum}" >> "$GITHUB_OUTPUT"

	- name: 'Checkout repository'
	uses: actions/checkout@v4

	- name: 'Set up Python ${{ matrix.python-version }}'
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: 'Install dependencies'
	run: \|
	python -m pip install --upgrade pip
	pip install tox tox-gh-actions

	- name: 'Tag for test release'
	# Delete all local tags, then create a synthetic tag for testing
	# Use the date/time to avoid conflicts uploading to Test PyPI
	run: \|
	scripts/dev-versioning.sh "${{ steps.setenv.outputs.vernum }}"
	git tag \| xargs -L 1 \| xargs git tag --delete
	git tag "v${{ steps.setenv.outputs.vernum }}"
	git checkout "tags/v${{ steps.setenv.outputs.vernum }}"
	grep version pyproject.toml

	- name: 'Build with TOX'
	run: \|
	tox -e build

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