gistfile1.py

# Import Salt libs
import salt.utils
import salt.utils.decorators as decorators
import salt.modules.cmdmod as salt_cmd

log = logging.getLogger(__name__)

# Function alias to set mapping. Filled
# in later on.
__func_alias__ = {}


def __virtual__():
    '''
    Makes sure that ZFS is available.
    '''
    if _check_zfs():
        return 'zfs'
    return False


@decorators.memoize
def _check_zfs():
    '''
    Looks to see if zfs is present on the system.
    '''
    kernel_module_chk = {
    'FreeBSD' : 'ls /tmp',
    }
    cmd = kernel_module_chk.get(__salt__['grains.get']('kernel'),'')
    if cmd and __salt__['cmd.retcode'](cmd) == 0:
        # Get the path to the zfs binary.
        return salt.utils.which('zfs')
    else:
        return False