def dockerHost()

in tools/invoke.py [0:0]

• 9 lines of code
• 3 McCabe index (conditional complexity)

def dockerHost():
    dockerHost = 'localhost'
    if 'DOCKER_HOST' in os.environ:
        try:
            dockerHost = re.compile('tcp://(.*):[\d]+').findall(os.environ['DOCKER_HOST'])[0]
        except Exception:
            print('cannot determine docker host from %s' % os.environ['DOCKER_HOST'])
            sys.exit(-1)
    return dockerHost