import gevent
import logging

from orchestra import run

log = logging.getLogger(__name__)

def check_conflict(ctx, config):
    log.info('Checking for old test directory...')
    processes = ctx.cluster.run(
        args=[
            'test', '!', '-e', '/tmp/cephtest',
            ],
        wait=False,
        )
    failed = False
    for proc in processes:
        assert isinstance(proc.exitstatus, gevent.event.AsyncResult)
        try:
            proc.exitstatus.get()
        except run.CommandFailedError:
            log.error('Host %s has stale cephtest directory, check your lock and reboot to clean up.', proc.remote.shortname)
            failed = True
    if failed:
        raise RuntimeError('Stale jobs detected, aborting.')