update-cache.yml

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: |
        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"
            for key in $cache_keys; do
                echo "$key"
            done
            exit 1
        fi
      env:
        GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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