Prune old workflow runs #13

	name: Prune old workflow runs

	on:
	schedule:
	# Weekly, Sundays at 06:00 UTC
	- cron: "0 6 * * 0"
	workflow_dispatch:
	inputs:
	days:
	description: Delete workflow runs older than this many days
	required: false
	default: "7"

	permissions:
	actions: write
	contents: read

	jobs:
	prune:
	name: Delete runs older than N days
	runs-on: ubuntu-latest

	steps:
	- name: Delete old workflow runs
	env:
	GH_TOKEN: ${{ github.token }}
	DAYS: ${{ github.event.inputs.days \|\| '7' }}
	run: \|
	cutoff=$(date -u -d "-${DAYS} days" +%Y-%m-%d)
	echo "Deleting workflow runs created before ${cutoff} (older than ${DAYS} days)"
	ids=$(gh api --paginate \
	"repos/${GITHUB_REPOSITORY}/actions/runs?created=%3C${cutoff}&per_page=100" \
	--jq '.workflow_runs[].id')
	deleted=0
	failed=0
	for id in ${ids}; do
	if gh api -X DELETE "repos/${GITHUB_REPOSITORY}/actions/runs/${id}" >/dev/null 2>&1; then
	deleted=$((deleted + 1))
	else
	failed=$((failed + 1))
	fi
	done
	echo "Deleted ${deleted} runs, ${failed} failures"

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