cache-cleanup.yml

name: Cache Cleanup

on:
  pull_request:
    types: [closed]

jobs:
  cleanup:
    name: Clean PR Cache
    runs-on: ubuntu-latest
    permissions:
      actions: write
    steps:
      - name: Cleanup PR caches
        uses: actions/github-script@v7
        with:
          script: |
            const ref = `refs/pull/${context.issue.number}/merge`;
            const caches = await github.rest.actions.getActionsCacheList({
              owner: context.repo.owner,
              repo: context.repo.repo,
              ref: ref,
            });

            console.log(`Found ${caches.data.total_count} cache(s) for PR #${context.issue.number}`);

            for (const cache of caches.data.actions_caches) {
              console.log(`Deleting cache: ${cache.key} (${cache.size_in_bytes} bytes)`);
              await github.rest.actions.deleteActionsCacheById({
                owner: context.repo.owner,
                repo: context.repo.repo,
                cache_id: cache.id,
              });
            }

            console.log('Cache cleanup complete');