CI: Add RTD configuration file #12

	---
	name: PyPI release

	# yamllint disable-line rule:truthy
	on: push

	jobs:
	publish:
	if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3
	- name: Configure Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.8"
	- name: Build package distribution files
	run: >-
	pipx run tox -e clean,build
	- name: Configure TWINE
	run: \|
	echo "TWINE_USERNAME=__token__" >> $GITHUB_ENV
	echo "TWINE_PASSWORD=${{ secrets.PYPI_API_TOKEN }}" >> $GITHUB_ENV
	- name: Publish to PyPI
	run: >-
	pipx run tox -e publish -- --repository pypi
	- name: Get tag
	id: tag
	uses: devops-actions/[email protected]
	- name: Convert tag
	run: >-
	VER=$(echo "${{ steps.tag.outputs.tag }}" \| tr . -)
	echo "ANCHOR=${VER}" >> $GITHUB_ENV
	- name: Notify mailing list
	uses: dawidd6/action-send-mail@v3
	with:
	server_address: ${{ vars.MAIL_SERVER }}
	server_port: ${{ vars.MAIL_SERVER_PORT }}
	secure: true
	username: ${{ secrets.MAIL_USER }}
	password: ${{ secrets.MAIL_PASSWORD }}
	subject: lftools ${{ steps.tag.outputs.tag }} released
	to: [email protected]
	from: ${{ vars.MAIL_FROM }}
	body: \|
	Hi Everyone,

	lftools ${{ steps.tag.outputs.tag }} is released. Thanks to everyone who contributed
	to this release. Release notes are avaiable online at:

	https://docs.releng.linuxfoundation.org/projects/lftools/en/stable/release-notes.html#${{ env.ANCHOR }}

	Cheers,
	LF Release Engineering

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