Post event #117

	name: Preview Cleanup

	on:
	pull_request:
	types: [closed]

	# Ensure that only one workflow which pushes to the `main` branch is running at a time.
	# Note: this is the same concurrency group as the `Deploy.yml` workflow.
	concurrency:
	group: pushing-website
	cancel-in-progress: false

	jobs:
	preview-cleanup:
	runs-on: ubuntu-latest
	permissions:
	contents: write
	steps:
	- name: Checkout main branch
	uses: actions/checkout@v4
	with:
	ref: main
	- name: Delete preview and history + push changes
	run: \|
	if [ -d "${preview_dir}" ]; then
	git config user.name "Franklin.jl"
	git config user.email "[email protected]"
	git rm -rf "${preview_dir}"
	git commit -m "delete preview"
	git branch main-new $(echo "delete history" \| git commit-tree HEAD^{tree})
	git push --force origin main-new:main
	fi
	env:
	preview_dir: previews/PR${{ github.event.number }}

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