(Shared) Cleanup Stale Branch Caches #21

	# https://github.com/actions/cache/blob/main/tips-and-workarounds.md#force-deletion-of-caches-overriding-default-cache-eviction-policy

	name: (Shared) Cleanup Stale Branch Caches
	on:
	schedule:
	- cron: 0 0 * * *
	workflow_dispatch:

	permissions: {}

	jobs:
	cleanup:
	runs-on: ubuntu-latest
	permissions:
	# `actions:write` permission is required to delete caches
	# See also: https://docs.github.com/en/rest/actions/cache?apiVersion=2022-11-28#delete-a-github-actions-cache-for-a-repository-using-a-cache-id
	actions: write
	contents: read
	steps:
	- name: Cleanup
	run: \|
	echo "Fetching list of cache keys"
	cacheKeysForPR=$(gh cache list --limit 100 --json id,ref --jq '.[] \| select(.ref != "refs/heads/main") \| .id')

	## Setting this to not fail the workflow while deleting cache keys.
	set +e
	for cacheKey in $cacheKeysForPR
	do
	gh cache delete $cacheKey
	echo "Deleting $cacheKey"
	done
	echo "Done"
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	GH_REPO: ${{ github.repository }}

Provide feedback