delete-caches.yml

name: Delete Caches
on:
  schedule:
    - cron: "0 */4 * * *" # Every 4th hour

concurrency:
  # Only run once and cancel other (previous) runs.
  group: delete-caches
  cancel-in-progress: true

permissions:
  actions: write # this permission is needed to delete cache

jobs:
  delete-public-local-caches:
    name: Delete unneeded caches
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: |
          gh cache list --limit 500 --order asc --sort last_accessed_at | grep 'play-published-local' > caches.txt || true
          echo "Found $(wc -l < caches.txt | xargs) published local cache entries"
          
          current_time=$(date -u +%s)
          expiration_time=$((current_time - 7200)) # 2 hour ago
          
          echo "Current time is $(date -d @$current_time)"
          echo "All entries hadn't been use from $(date -d @$expiration_time) will be delete"
          
          while IFS=$'\t' read -r id name size created_at last_accessed_at; do
            accessedTimestamp=$(date -u -d "$last_accessed_at" +%s)
            # Uncomment to check on Mac OS 
            # accessedTimestamp=$(date -j -f "%Y-%m-%dT%H:%M:%SZ" "$last_accessed_at" +%s)
            if [ "$accessedTimestamp" -lt "$expiration_time" ]; then
              echo "Delete $id $name ($last_accessed_at)"
              gh cache delete $id
            fi
          done < caches.txt
          rm -rf caches.txt
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}