Update cache #15

	name: Update cache

	on:
	schedule:
	# at 11:31 UTC (19:31 CST/UTC +8) on every Friday
	# https://crontab.guru/#31_11___5
	- cron: "31 11 * * 5"
	workflow_dispatch:

	jobs:
	update-cache:
	runs-on: ubuntu-latest
	permissions:
	actions: write
	steps:
	- uses: actions/checkout@v4

	# https://cli.github.com/manual/gh_cache_list
	# https://cli.github.com/manual/gh_cache_delete
	- name: Delete setup-texlive-action caches
	run: \|
	# to find why 'cache_keys' contain dup items
	set -x
	cache_keys=$(\
	gh cache list --key setup-texlive --json key --jq '.[].key')
	if [[ $(wc -l <<< "$cache_keys") -gt 1 ]]; then
	echo "Multiple setup-texlive-action caches found"
	exit 1
	fi
	for key in $cache_keys; do
	echo "Deleting cache $key"
	gh cache delete "$key"
	done
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	- name: Create new cache
	uses: teatimeguest/setup-texlive-action@v3
	with:
	package-file: .github/tl_packages
	update-all-packages: true

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