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calculate-utils-3-install/pym/install/variables/lvm.py

83 lines
2.4 KiB

# -*- coding: utf-8 -*-
# Copyright 2008-2016 Mir Calculate. http://www.calculate-linux.org
#
# 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 sys
from calculate.lib.datavars import (Variable, VariableInterface,
ReadonlyVariable, ReadonlyTableVariable,
FieldValue, HumanReadable)
from calculate.lib.utils.files import (process, checkUtils)
from calculate.lib.cl_lang import setLocalTranslate
setLocalTranslate('cl_install3', sys.modules[__name__])
class LvmHelper(VariableInterface):
def getLvmData(self):
"""Get route table, exclude specifed iface"""
pvDisplayProg = checkUtils('/sbin/pvdisplay')
pvDisplay = process(pvDisplayProg, "--noh", "-Co",
"lv_name,vg_name,pv_name")
for line in pvDisplay:
line = line.split()
if len(line) == 3:
yield line
#######################################################
# Devices variables
#######################################################
class VariableOsLvmData(ReadonlyTableVariable, LvmHelper):
"""
Information about disk devices
"""
source = ['os_lvm_lvname',
'os_lvm_vgname',
'os_lvm_pvname']
def get(self, hr=HumanReadable.No):
"""LVM hash"""
return list(self.getLvmData()) or [[]]
setValue = Variable.setValue
class VariableOsLvmLvname(FieldValue, ReadonlyVariable):
"""
Logical volumes names
"""
type = "list"
source_variable = "os_lvm_data"
column = 0
class VariableOsLvmVgname(FieldValue, ReadonlyVariable):
"""
Volume groups names
"""
type = "list"
source_variable = "os_lvm_data"
column = 1
class VariableOsLvmPvname(FieldValue, ReadonlyVariable):
"""
Phisical volumes names
"""
type = "list"
source_variable = "os_lvm_data"
column = 2