Mini Shell
#
# Chris Lumens <clumens@redhat.com>
# David Lehman <dlehman@redhat.com>
#
# Copyright 2005, 2006, 2007, 2011 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use, modify,
# copy, or redistribute it subject to the terms and conditions of the GNU
# General Public License v.2. This program is distributed in the hope that it
# will be useful, but WITHOUT ANY WARRANTY expressed or implied, including the
# implied warranties of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. Any Red Hat
# trademarks that are incorporated in the source code or documentation are not
# subject to the GNU General Public License and may only be used or replicated
# with the express permission of Red Hat, Inc.
#
from pykickstart.version import F17, F23, RHEL8, versionToLongString
from pykickstart.base import BaseData, KickstartCommand, DeprecatedCommand
from pykickstart.errors import KickstartParseError, KickstartParseWarning
from pykickstart.options import KSOptionParser
import warnings
from pykickstart.i18n import _
class F17_BTRFSData(BaseData):
removedKeywords = BaseData.removedKeywords
removedAttrs = BaseData.removedAttrs
def __init__(self, *args, **kwargs):
BaseData.__init__(self, *args, **kwargs)
self.format = kwargs.get("format", True)
self.preexist = kwargs.get("preexist", False)
self.label = kwargs.get("label", "")
self.mountpoint = kwargs.get("mountpoint", "")
self.devices = kwargs.get("devices", [])
self.dataLevel = kwargs.get("data", None) or kwargs.get("dataLevel", None)
self.metaDataLevel = kwargs.get("metadata", None) or kwargs.get("metaDataLevel", None)
# subvolume-specific
self.subvol = kwargs.get("subvol", False)
self.parent = kwargs.get("parent", "")
self.name = kwargs.get("name", None) # required
def __eq__(self, y):
if not y:
return False
return self.mountpoint == y.mountpoint
def __ne__(self, y):
return not self == y
def _getArgsAsStr(self):
retval = ""
if not self.format:
retval += " --noformat"
if self.preexist:
retval += " --useexisting"
if self.label:
retval += " --label=%s" % self.label
if self.dataLevel:
retval += " --data=%s" % self.dataLevel.lower()
if self.metaDataLevel:
retval += " --metadata=%s" % self.metaDataLevel.lower()
if self.subvol:
retval += " --subvol --name=%s" % self.name
return retval
def __str__(self):
retval = BaseData.__str__(self)
retval += "btrfs %s" % self.mountpoint
retval += self._getArgsAsStr()
return retval + " " + " ".join(self.devices) + "\n"
class F23_BTRFSData(F17_BTRFSData):
removedKeywords = F17_BTRFSData.removedKeywords
removedAttrs = F17_BTRFSData.removedAttrs
def __init__(self, *args, **kwargs):
F17_BTRFSData.__init__(self, *args, **kwargs)
self.mkfsopts = kwargs.get("mkfsoptions", "") or kwargs.get("mkfsopts", "")
def _getArgsAsStr(self):
retval = F17_BTRFSData._getArgsAsStr(self)
if self.mkfsopts:
retval += " --mkfsoptions=\"%s\"" % self.mkfsopts
return retval
class RHEL7_BTRFSData(F23_BTRFSData):
pass
class F17_BTRFS(KickstartCommand):
removedKeywords = KickstartCommand.removedKeywords
removedAttrs = KickstartCommand.removedAttrs
def __init__(self, writePriority=132, *args, **kwargs):
KickstartCommand.__init__(self, writePriority, *args, **kwargs)
self.op = self._getParser()
# A dict of all the RAID levels we support. This means that if we
# support more levels in the future, subclasses don't have to
# duplicate too much.
self.levelMap = {"raid0": "raid0", "0": "raid0",
"raid1": "raid1", "1": "raid1",
"raid10": "raid10", "10": "raid10",
"single": "single"}
self.btrfsList = kwargs.get("btrfsList", [])
def __str__(self):
retval = ""
for btr in self.btrfsList:
retval += btr.__str__()
return retval
def _getParser(self):
def level_cb(value):
if value.lower() in self.levelMap:
return self.levelMap[value.lower()]
else:
raise KickstartParseError(_("Invalid btrfs level: %s") % value, lineno=self.lineno)
op = KSOptionParser(prog="btrfs", description="""
Defines a BTRFS volume or subvolume. This command
is of the form:
``btrfs <mntpoint> --data=<level> --metadata=<level> --label=<label> <partitions*>``
for volumes and of the form:
``btrfs <mntpoint> --subvol --name=<path> <parent>``
for subvolumes.
The ``<partitions*>`` (which denotes that multiple
partitions can be listed) lists the BTRFS identifiers
to add to the BTRFS volume. For subvolumes, should be
the identifier of the subvolume's parent volume.
``<mntpoint>``
Location where the file system is mounted.""",
epilog="""
The following example shows how to create a BTRFS
volume from member partitions on three disks with
subvolumes for root and home. The main volume is not
mounted or used directly in this example -- only
the root and home subvolumes::
part btrfs.01 --size=6000 --ondisk=sda
part btrfs.02 --size=6000 --ondisk=sdb
part btrfs.03 --size=6000 --ondisk=sdc
btrfs none --data=0 --metadata=1 --label=f17 btrfs.01 btrfs.02 btrfs.03
btrfs / --subvol --name=root LABEL=f17
btrfs /home --subvol --name=home f17""",
version=F17)
op.add_argument("--noformat", dest="format", action="store_false",
default=True, version=F17, help="""
Use an existing BTRFS volume (or subvolume) and do not
reformat the filesystem.""")
op.add_argument("--useexisting", dest="preexist", action="store_true",
default=False, help="Same as ``--noformat``.",
version=F17)
# label, data, metadata
op.add_argument("--label", default="", version=F17, help="""
Specify the label to give to the filesystem to be made.
If the given label is already in use by another
filesystem, a new label will be created. This option
has no meaning for subvolumes.""")
op.add_argument("--data", dest="dataLevel", type=level_cb, help="""
RAID level to use (0, 1, 10) for filesystem data. Optional.
This option has no meaning for subvolumes.""",
version=F17)
op.add_argument("--metadata", dest="metaDataLevel", type=level_cb,
version=F17, help="""
RAID level to use (0, 1, 10) for filesystem/volume
metadata. Optional. This option has no meaning for
subvolumes.""")
#
# subvolumes
#
op.add_argument("--subvol", action="store_true", default=False,
version=F17, help="Create BTRFS subvolume.")
# parent must be a device spec (LABEL, UUID, &c)
op.add_argument("--parent", default="", version=F17, help="")
op.add_argument("--name", default="", version=F17, help="""
Subvolume name.""")
return op
def parse(self, args):
(ns, extra) = self.op.parse_known_args(args=args, lineno=self.lineno)
data = self.dataClass() # pylint: disable=not-callable
self.set_to_obj(ns, data)
data.lineno = self.lineno
if not data.format:
data.preexist = True
elif data.preexist:
data.format = False
if not extra:
raise KickstartParseError(_("btrfs must be given a mountpoint"), lineno=self.lineno)
elif any(arg for arg in extra if arg.startswith("-")):
mapping = {"command": "btrfs", "options": extra}
raise KickstartParseError(_("Unexpected arguments to %(command)s command: %(options)s") % mapping, lineno=self.lineno)
data.mountpoint = extra[0]
data.devices = extra[1:]
if not any([data.devices, data.subvol]):
raise KickstartParseError(_("btrfs must be given a list of partitions"), lineno=self.lineno)
elif not data.devices:
raise KickstartParseError(_("btrfs subvol requires specification of parent volume"), lineno=self.lineno)
if data.subvol and not data.name:
raise KickstartParseError(_("btrfs subvolume requires a name"), lineno=self.lineno)
# Check for duplicates in the data list.
if data in self.dataList():
warnings.warn(_("A btrfs volume with the mountpoint %s has already been defined.") % data.label, KickstartParseWarning)
return data
def dataList(self):
return self.btrfsList
@property
def dataClass(self):
return self.handler.BTRFSData
class F23_BTRFS(F17_BTRFS):
removedKeywords = F17_BTRFS.removedKeywords
removedAttrs = F17_BTRFS.removedAttrs
def _getParser(self):
op = F17_BTRFS._getParser(self)
op.add_argument("--mkfsoptions", dest="mkfsopts", version=F23, help="""
Specifies additional parameters to be passed to the
program that makes a filesystem on this partition. No
processing is done on the list of arguments, so they
must be supplied in a format that can be passed directly
to the mkfs program. This means multiple options should
be comma-separated or surrounded by double quotes,
depending on the filesystem.""")
return op
def parse(self, args):
data = F17_BTRFS.parse(self, args)
if (data.preexist or not data.format) and data.mkfsopts:
raise KickstartParseError(_("--mkfsoptions with --noformat or --useexisting has no effect."), lineno=self.lineno)
return data
class RHEL7_BTRFS(F23_BTRFS):
pass
class RHEL8_BTRFS(DeprecatedCommand, F23_BTRFS):
def __init__(self): # pylint: disable=super-init-not-called
DeprecatedCommand.__init__(self)
def _getParser(self):
op = F23_BTRFS._getParser(self)
op.description += "\n\n.. deprecated:: %s" % versionToLongString(RHEL8)
return op