clear-cache.yml

name: Delete Caches
on:
  schedule:
    - cron: "0 0 * * *"
  workflow_dispatch:

concurrency:
  group: delete-caches
  cancel-in-progress: true

permissions:
  contents: read
  actions: write

jobs:
  delete-old-caches:
    name: Delete unneeded caches
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
      - run: |
          echo "All caches available:"
          gh cache list --limit 500 --order asc --sort last_accessed_at
          
          gh cache list --limit 500 --order asc --sort last_accessed_at | grep -E '(build-artifacts|maui-workload)' > caches.txt || true
          gh cache list --limit 1 --order desc --sort created_at | grep 'maui-workload' > latest_maui_workload.txt || true

          echo "Found $(wc -l < caches.txt | xargs) cache entries for deletion"

          echo "Filtered caches:"
          grep -E 'build-artifacts|maui-workload' caches.txt || echo "No matching caches found"
          
          latest_maui_id=$(awk '{print $1}' latest_maui_workload.txt)

          while IFS=$'\t' read -r id name size created_at last_accessed_at; do
            accessedTimestamp=$(date -u -d "$last_accessed_at" +%s)
            
            # Skip latest maui-workload cache
            if [[ "$name" == maui-workload* && "$id" == "$latest_maui_id" ]]; then
              echo "Skipping latest maui-workload cache: $id $name ($last_accessed_at)"
              continue
            fi
            
            echo "Deleting $id $name ($last_accessed_at)"
            gh cache delete $id
              
          done < caches.txt
          
          rm -rf caches.txt latest_maui_workload.txt
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}