check for black updates #689

	name: check for black updates
	on: {workflow_dispatch, schedule: [cron: '0 0 * * *']}
	jobs:
	check-for-updates:
	runs-on: ubuntu-22.04
	name: check for black updates
	env:
	GITHUB_TOKEN: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
	steps:
	- uses: actions/checkout@v3
	- name: setup python
	uses: actions/setup-python@v2
	with:
	python-version: '3.10'
	architecture: x64
	- id: version
	name: check version
	run: \|
	pip install -U black
	pip freeze \| grep 'black==' >requirements.txt
	version="$(sed -E 's#black==(.*)#\1#g' ./requirements.txt)"
	echo "version=$version" >>$GITHUB_OUTPUT
	echo "message=automatic black update [$version]" >>$GITHUB_OUTPUT
	- uses: peter-evans/[email protected]
	id: new_pull_request
	with:
	delete-branch: true
	title: ${{ steps.version.outputs.message }}
	commit-message: ${{ steps.version.outputs.message }}
	branch: automatic-black-update
	token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
	- if: steps.new_pull_request.outputs.pull-request-url != ''
	run: gh pr merge --auto --squash ${{ steps.new_pull_request.outputs.pull-request-url }}

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