labeler

var PendingRebaseNeedsWorkPRUnlabeler = func(context *ctx.Context, payload interface{}) error {
	event, ok := payload.(*github.PullRequestEvent)
	if !ok {
		return context.NewError("PendingRebaseUnlabeler: not a pull request event")
	}

	if *event.Action != "synchronize" {
		return nil
	}

	owner, repo, num := *event.Repo.Owner.Login, *event.Repo.Name, *event.Number

	log.Printf("checking the mergeability of %s/%s#%d in %d sec...", owner, repo, num, repoMergeabilityCheckWaitSec)
	time.Sleep(repoMergeabilityCheckWaitSec * time.Second)

	var err error
	if isMergeable(context, owner, repo, num) {
		err = RemoveLabelIfExists(context, owner, repo, num, "pending-rebase")
		if err != nil {
			log.Printf("error removing the pending-rebase label: %v", err)
		}
		err = RemoveLabelIfExists(context, owner, repo, num, "needs-work")
	} else {
		err = fmt.Errorf("%s/%s#%d is not mergeable", owner, repo, num)
	}

	if err != nil {
		log.Printf("error removing the pending-rebase & needs-work labels: %v", err)
	}
	return err
}