Release #155

	name: Release

	on: create

	jobs:
	release:
	if: ${{ startsWith(github.ref, 'refs/heads/release/v') }}
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	token: ${{ secrets.TOWNCRIER_TOKEN }}
	fetch-depth: 0
	submodules: true

	- name: Set up Python 3.10
	uses: actions/setup-python@v4
	with:
	python-version: "3.10"

	- name: Extract the tag
	id: vars
	run: \|
	echo "::set-output name=tag::${GITHUB_REF##*/}"

	- name: Check tag validity
	env:
	VERSION: ${{ steps.vars.outputs.tag }}
	run: \|
	grep "^v[[:digit:]]\.[[:digit:]]\.[[:digit:]]$" <<< "$VERSION" \|\| (echo "Invalid version: '$VERSION'" && exit 42)

	- name: Install dependencies
	run: \|
	sudo apt install pandoc
	python -m pip install --upgrade pip
	pip install tox bump2version
	pip install -e '.'

	- name: Check generated docs
	run: \|
	tox -e check-docs

	- name: Bump the version
	# the part (patch) doesn't matter when supplying --new-version
	env:
	VERSION: ${{ steps.vars.outputs.tag }}
	run: \|
	bump2version patch --no-commit --no-tag --verbose --new-version "${VERSION/v/}"

	- name: Commit version bump
	uses: stefanzweifel/git-auto-commit-action@v4
	with:
	file_pattern: .bumpversion.cfg
	commit_user_name: CI
	commit_message: ${{ format('[auto][ci skip] Release {0}', steps.vars.outputs.tag) }}
	tagging_message: ${{ steps.vars.outputs.tag }}
	skip_dirty_check: false

	# `Test` triggers `Deployment`
	# TODO(michalk8): can't find WD for `Test`
	- name: Invoke deployment workflow
	uses: benc-uk/workflow-dispatch@v1
	with:
	workflow: Deployment
	token: ${{ secrets.RELEASE_DISPATCH_TOKEN }}
	inputs: '{ "reason": "release" }'

Provide feedback