cleanup-cache.yml

---
name: Cleanup Cache

on:
  pull_request:
    types:
      - closed

concurrency:
  group: cleanup-cache-${{ github.event.pull_request.number }}
  cancel-in-progress: true

jobs:
  cleanup:
    runs-on: ubuntu-latest
    timeout-minutes: 10
    permissions:
      actions: write
    steps:
      - name: 🧹 Cleanup Cache
        run: |
          echo "Fetching list of cache keys"
          cacheKeysForPR=$(gh cache list --ref "$BRANCH" --limit 100 --json id --jq ".[].id")

          ## Setting this to not fail the workflow while deleting cache keys.
          set +e
          echo "Deleting caches..."
          for cacheKey in $cacheKeysForPR
          do
              gh cache delete "$cacheKey"
          done
          echo "Done"
        env:
          GH_TOKEN: ${{ github.token }}
          GH_REPO: ${{ github.repository }}
          BRANCH: refs/pull/${{ github.event.pull_request.number }}/merge