cleanup.yml

name: Cleanup
on:
  delete:
  workflow_dispatch:
  pull_request:
    types:
      - closed

permissions:
  actions: write

env:
  BRANCH: ${{ github.event_type == 'pull_request' && 'refs/pull/${{ github.event.pull_request.number }}/merge' || github.event.ref }}

jobs:
  cleanup:
    name: Cleanup at event ${{ github.event_name }} for branch ${{ github.event_type == 'pull_request' && 'refs/pull/${{ github.event.pull_request.number }}/merge' || github.event.ref }}
    if: github.event.ref_type == 'branch' || github.event_name == 'workflow_dispatch' || github.event_name == 'pull_request'
    runs-on: ubuntu-24.04
    steps:
      - name: Branch Caches
        run: |
          echo "Fetching list of cache key"
          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..."
          deletedAny=0
          for cacheKey in $cacheKeysForPR
          do
              deletedAny=1
              gh cache delete $cacheKey
              exitCode="$?"
              if [ "$exitCode" -eq 0 ]; then
                  echo "deleted cache entry $cacheKey"
              else
                  echo "failed to delete cache entry $cacheKey - exited with code $exitCode"
              fi
          done
          if [ "$deletedAny" -eq 0 ]; then
              echo "No cache entries found"
          else
              echo "Done"
          fi
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.repository }}