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# partspec.py |
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# |
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# Copyright (C) 2009 Red Hat, Inc. |
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# |
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# This copyrighted material is made available to anyone wishing to use, |
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# modify, copy, or redistribute it subject to the terms and conditions of |
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# the GNU General Public License v.2, or (at your option) any later version. |
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# This program is distributed in the hope that it will be useful, but WITHOUT |
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# ANY WARRANTY expressed or implied, including the implied warranties of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
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# Public License for more details. You should have received a copy of the |
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# GNU General Public License along with this program; if not, write to the |
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# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the |
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# source code or documentation are not subject to the GNU General Public |
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# License and may only be used or replicated with the express permission of |
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# Red Hat, Inc. |
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# |
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# Red Hat Author(s): Chris Lumens <clumens@redhat.com> |
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# |
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|
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class PartSpec(object): |
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def __init__(self, mountpoint=None, fstype=None, size=None, maxSize=None, |
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grow=False, asVol=False, singlePV=False, weight=0, |
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requiredSpace=0): |
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""" Create a new storage specification. These are used to specify |
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the default partitioning layout as an object before we have the |
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storage system up and running. The attributes are obvious |
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except for the following: |
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|
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asVol -- Should this be allocated as a logical volume? If not, |
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it will be allocated as a partition. |
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singlePV -- Should this logical volume map to a single physical |
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volume in the volume group? Implies asVol=True |
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weight -- An integer that modifies the sort algorithm for partition |
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requests. A larger value means the partition will end up |
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closer to the front of the disk. This is mainly used to |
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make sure /boot ends up in front, and any special (PReP, |
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appleboot, etc.) partitions end up in front of /boot. |
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This value means nothing if asVol=False. |
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requiredSpace -- This value is only taken into account if |
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asVol=True, and specifies the size in MB that the |
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containing VG must be for this PartSpec to even |
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get used. The VG's size is calculated before any |
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other LVs are created inside it. If not enough |
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space exists, this PartSpec will never get turned |
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into an LV. |
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""" |
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|
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self.mountpoint = mountpoint |
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self.fstype = fstype |
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self.size = size |
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self.maxSize = maxSize |
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self.grow = grow |
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self.asVol = asVol |
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self.singlePV = singlePV |
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self.weight = weight |
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self.requiredSpace = requiredSpace |
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|
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if self.singlePV and not self.asVol: |
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self.asVol = True |
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|
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def __str__(self): |
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s = ("%(type)s instance (%(id)s) -- \n" |
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" mountpoint = %(mountpoint)s asVol = %(asVol)s singlePV = %(singlePV)s\n" |
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" weight = %(weight)s fstype = %(fstype)s\n" |
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" size = %(size)s maxSize = %(maxSize)s grow = %(grow)s\n" % |
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{"type": self.__class__.__name__, "id": "%#x" % id(self), |
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"mountpoint": self.mountpoint, "asVol": self.asVol, |
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"singlePV": self.singlePV, "weight": self.weight, |
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"fstype": self.fstype, "size": self.size, |
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"maxSize": self.maxSize, "grow": self.grow}) |
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|
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return s |
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