Clean Docs for Deleted References #64

	name: Clean Docs for Deleted References
	on:
	delete:

	jobs:
	clean:
	if: github.repository_owner == 'TIDES-transit'
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- name: Set github reference as Slug environment variable
	run: \|
	echo "Slug=$(echo "${{ github.head_ref }}" \| sed "s/\//\-/g")" >> "$GITHUB_ENV"
	- name: If no github.head_ref, use last chunk of github.ref as Slug
	if: github.head_ref == ''
	run: \|
	IFS="\/";
	read -a strarr <<< "${{ github.event.ref }}";
	last_ref="${strarr[${#strarr[*]}-1]}";
	echo "Slug=$(echo $last_ref)" >> "$GITHUB_ENV"
	- name: Document which reference
	run: echo "Running for reference ${{ env.Slug }}"
	- name: Set up Python $PYTHON_VERSION
	uses: actions/setup-python@v4
	with:
	python-version: '3.x'
	cache: 'pip'
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r docs/requirements.txt
	- name: Configure Git user
	run: \|
	git config --local user.email "github-actions[bot]@users.noreply.github.com"
	git config --local user.name "github-actions[bot]"
	- name: Delete defunct docs versions
	run: \|
	echo "Deleting ${{ env.Slug }} version from docs"
	mike delete --rebase --push ${{ env.Slug }}

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