diskimage-builder/diskimage_builder/block_device/level4/fstab.py
Andreas Florath f314df12c3 Refactor: use lazy logging
As described in pep282 [1], the variable part of a log message
should be passed in via parameter.  In this case the parameters
are evaluated only when they need to be.

This patch fixes (unifies) this for DIB.

A check using pylint was added that this kind of passing parameters to
the logging subsystem is enforced in future.  As a blueprint a similar
(stripped-down) approach from cinder [2] was used.

[1] https://www.python.org/dev/peps/pep-0282/
[2] https://github.com/openstack/cinder/blob/master/tox.ini

Change-Id: I2d7bcc863e4e9583d82d204438b3c781ac99824e
Signed-off-by: Andreas Florath <andreas@florath.net>
2017-05-30 14:39:58 +10:00

61 lines
1.8 KiB
Python

# Copyright 2017 Andreas Florath (andreas@florath.net)
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import logging
from diskimage_builder.block_device.plugin import NodeBase
from diskimage_builder.block_device.plugin import PluginBase
logger = logging.getLogger(__name__)
class FstabNode(NodeBase):
def __init__(self, config, params):
super(FstabNode, self).__init__(config['name'])
self.base = config['base']
self.options = config.get('options', 'defaults')
self.dump_freq = config.get('dump-freq', 0)
self.fsck_passno = config.get('fsck-passno', 2)
def get_edges(self):
edge_from = [self.base]
edge_to = []
return (edge_from, edge_to)
def create(self, result, rollback):
logger.debug("fstab create called [%s]", self.name)
logger.debug("result [%s]", result)
if 'fstab' not in result:
result['fstab'] = {}
result['fstab'][self.base] = {
'name': self.name,
'base': self.base,
'options': self.options,
'dump-freq': self.dump_freq,
'fsck-passno': self.fsck_passno
}
class Fstab(PluginBase):
def __init__(self, config, defaults):
super(Fstab, self).__init__()
self.node = FstabNode(config, defaults)
def get_nodes(self):
return [self.node]