355 lines
14 KiB
Python
355 lines
14 KiB
Python
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#
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# partIntfHelpers.py: partitioning interface helper functions
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#
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# Copyright (C) 2002 Red Hat, Inc. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Author(s): Matt Wilson <msw@redhat.com>
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# Jeremy Katz <katzj@redhat.com>
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# Mike Fulbright <msf@redhat.com>
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# Harald Hoyer <harald@redhat.de>
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#
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"""Helper functions shared between partitioning interfaces."""
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import string
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from constants import *
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import parted
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import iutil
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from storage.formats import getFormat
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import gettext
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_ = lambda x: gettext.ldgettext("anaconda", x)
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def sanityCheckVolumeGroupName(volname):
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"""Make sure that the volume group name doesn't contain invalid chars."""
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badNames = ['lvm', 'root', '.', '..' ]
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if not volname:
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return _("Please enter a volume group name.")
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# ripped the value for this out of linux/include/lvm.h
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if len(volname) > 128:
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return _("Volume Group Names must be less than 128 characters")
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if volname in badNames:
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return _("Error - the volume group name %s is not valid." % (volname,))
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for i in range(0, len(volname)):
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rc = string.find(string.letters + string.digits + '.' + '_' + '-', volname[i])
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if rc == -1:
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return _("Error - the volume group name contains illegal "
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"characters or spaces. Acceptable characters "
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"are letters, digits, '.' or '_'.")
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return None
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def sanityCheckLogicalVolumeName(logvolname):
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"""Make sure that the logical volume name doesn't contain invalid chars."""
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badNames = ['group', '.', '..' ]
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if not logvolname:
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return _("Please enter a logical volume name.")
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# ripped the value for this out of linux/include/lvm.h
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if len(logvolname) > 128:
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return _("Logical Volume Names must be less than 128 characters")
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if logvolname in badNames:
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return _("Error - the logical volume name %s is not "
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"valid." % (logvolname,))
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for i in range(0, len(logvolname)):
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rc = string.find(string.letters + string.digits + '.' + '_', logvolname[i])
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if rc == -1:
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return _("Error - the logical volume name contains illegal "
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"characters or spaces. Acceptable characters "
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"are letters, digits, '.' or '_'.")
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return None
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def sanityCheckMountPoint(mntpt, fstype, preexisting, format):
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"""Sanity check that the mountpoint is valid.
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mntpt is the mountpoint being used.
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fstype is the file system being used on the request.
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preexisting is whether the request was preexisting (request.preexist)
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format is whether the request is being formatted or not
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"""
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if mntpt:
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passed = 1
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if not mntpt:
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passed = 0
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else:
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if mntpt[0] != '/' or (len(mntpt) > 1 and mntpt[-1:] == '/'):
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passed = 0
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elif mntpt.find(' ') > -1:
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passed = 0
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if not passed:
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return _("The mount point %s is invalid. Mount points must start "
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"with '/' and cannot end with '/', and must contain "
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"printable characters and no spaces." % mntpt)
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else:
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return None
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else:
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if (fstype and fstype.mountable and (not preexisting or format)):
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return _("Please specify a mount point for this partition.")
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else:
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# its an existing partition so don't force a mount point
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return None
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def doDeleteDevice(intf, storage, device, confirm=1, quiet=0):
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"""Delete a partition from the request list.
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intf is the interface
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storage is the storage instance
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device is the device to delete
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"""
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if not device:
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intf.messageWindow(_("Unable To Delete"),
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_("You must first select a partition to delete."),
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custom_icon="error")
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return False
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reason = storage.deviceImmutable(device)
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if reason:
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intf.messageWindow(_("Unable To Delete"),
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reason,
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custom_icon="error")
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return False
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if confirm and not confirmDelete(intf, device):
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return False
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deps = storage.deviceDeps(device)
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while deps:
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leaves = [d for d in deps if d.isleaf]
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for leaf in leaves:
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storage.destroyDevice(leaf)
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deps.remove(leaf)
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storage.destroyDevice(device)
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return True
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def doClearPartitionedDevice(intf, storage, device, confirm=1, quiet=0):
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""" Remove all devices/partitions currently on device.
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device -- a partitioned device such as a disk
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"""
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if confirm:
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rc = intf.messageWindow(_("Confirm Delete"),
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_("You are about to delete all partitions on "
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"the device '%s'.") % (device.path,),
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type="custom", custom_icon="warning",
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custom_buttons=[_("Cancel"), _("_Delete")])
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if not rc:
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return False
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immutable = []
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partitions = [p for p in storage.partitions if p.disk == device]
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if not partitions:
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return False
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partitions.sort(key=lambda p: p.partedPartition.number, reverse=True)
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for p in partitions:
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deps = storage.deviceDeps(p)
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clean = True # true if part and its deps were removed
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while deps:
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leaves = [d for d in deps if d.isleaf]
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for leaf in leaves:
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if leaf in immutable:
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# this device was removed from deps at the same time it
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# was added to immutable, so it won't appear in leaves
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# in the next iteration
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continue
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if storage.deviceImmutable(leaf):
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immutable.append(leaf)
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for dep in [d for d in deps if d != leaf]:
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# mark devices this device depends on as immutable
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# to prevent getting stuck with non-leaf deps
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# protected by immutable leaf devices
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if leaf.dependsOn(dep):
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deps.remove(dep)
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if dep not in immutable:
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immutable.append(dep)
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clean = False
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else:
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storage.destroyDevice(leaf)
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deps.remove(leaf)
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if storage.deviceImmutable(p):
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immutable.append(p)
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clean = False
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if clean:
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storage.destroyDevice(p)
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if immutable and not quiet:
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remaining = "\t" + "\n\t".join(p.path for p in immutable) + "\n"
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intf.messageWindow(_("Notice"),
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_("The following partitions were not deleted "
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"because they are in use:\n\n%s") % remaining,
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custom_icon="warning")
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return True
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def checkForSwapNoMatch(anaconda):
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"""Check for any partitions of type 0x82 which don't have a swap fs."""
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for device in anaconda.storage.partitions:
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if not device.exists:
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# this is only for existing partitions
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continue
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if device.getFlag(parted.PARTITION_SWAP) and \
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not device.format.type == "swap":
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rc = anaconda.intf.messageWindow(_("Format as Swap?"),
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_("%s has a partition type of 0x82 "
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"(Linux swap) but does not appear to "
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"be formatted as a Linux swap "
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"partition.\n\n"
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"Would you like to format this "
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"partition as a swap partition?")
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% device.path, type = "yesno",
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custom_icon="question")
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if rc == 1:
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format = getFormat("swap", device=device.path)
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anaconda.storage.formatDevice(device, format)
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return
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def mustHaveSelectedDrive(intf):
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txt =_("You need to select at least one hard drive to install %s.") % (productName,)
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intf.messageWindow(_("Error"), txt, custom_icon="error")
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def queryNoFormatPreExisting(intf):
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"""Ensure the user wants to use a partition without formatting."""
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txt = _("You have chosen to use a pre-existing "
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"partition for this installation without formatting it. "
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"We recommend that you format this partition "
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"to make sure files from a previous operating system installation "
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"do not cause problems with this installation of Linux. "
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"However, if this partition contains files that you need "
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"to keep, such as home directories, then "
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"continue without formatting this partition.")
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rc = intf.messageWindow(_("Format?"), txt, type = "custom", custom_buttons=[_("_Modify Partition"), _("Do _Not Format")], custom_icon="warning")
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return rc
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def partitionSanityErrors(intf, errors):
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"""Errors were found sanity checking. Tell the user they must fix."""
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rc = 1
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if errors:
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errorstr = string.join(errors, "\n\n")
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rc = intf.messageWindow(_("Error with Partitioning"),
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_("The following critical errors exist "
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"with your requested partitioning "
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"scheme. "
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"These errors must be corrected prior "
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"to continuing with your install of "
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"%(productName)s.\n\n%(errorstr)s") \
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% {'productName': productName,
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'errorstr': errorstr},
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custom_icon="error")
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return rc
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def partitionSanityWarnings(intf, warnings):
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"""Sanity check found warnings. Make sure the user wants to continue."""
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rc = 1
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if warnings:
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warningstr = string.join(warnings, "\n\n")
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rc = intf.messageWindow(_("Partitioning Warning"),
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_("The following warnings exist with "
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"your requested partition scheme.\n\n%s"
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"\n\nWould you like to continue with "
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"your requested partitioning "
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"scheme?") % (warningstr),
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type="yesno", custom_icon="warning")
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return rc
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def partitionPreExistFormatWarnings(intf, warnings):
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"""Double check that preexistings being formatted are fine."""
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rc = 1
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if warnings:
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labelstr1 = _("The following pre-existing partitions have been "
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"selected to be formatted, destroying all data.")
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labelstr2 = _("Select 'Yes' to continue and format these "
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"partitions, or 'No' to go back and change these "
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"settings.")
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commentstr = ""
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for (dev, type, mntpt) in warnings:
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commentstr = commentstr + "/dev/%s %s %s\n" % (dev,type,mntpt)
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rc = intf.messageWindow(_("Format Warning"), "%s\n\n%s\n\n%s" %
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(labelstr1, labelstr2, commentstr),
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type="yesno", custom_icon="warning")
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return rc
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def getPreExistFormatWarnings(storage):
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"""Return a list of preexisting devices being formatted."""
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devices = []
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for device in storage.devicetree.devices:
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if device.exists and not device.format.exists and \
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not device.format.hidden:
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devices.append(device)
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devices.sort(key=lambda d: d.name)
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rc = []
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for device in devices:
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rc.append((device.path,
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device.format.name,
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getattr(device.format, "mountpoint", "")))
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return rc
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def confirmDelete(intf, device):
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"""Confirm the deletion of a device."""
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if not device:
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return
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if device.type == "lvmvg":
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errmsg = (_("You are about to delete the volume group \"%s\"."
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"\n\nALL logical volumes in this volume group "
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"will be lost!") % device.name)
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elif device.type == "lvmlv":
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errmsg = (_("You are about to delete the logical volume \"%s\".")
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% device.name)
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elif device.type == "mdarray":
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errmsg = _("You are about to delete a RAID device.")
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elif device.type == "partition":
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errmsg = (_("You are about to delete the %s partition.")
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% device.path)
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else:
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# we may want something a little bit prettier than device.type
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errmsg = (_("You are about to delete the %(type)s %(name)s") \
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% {'type': device.type, 'name': device.name})
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rc = intf.messageWindow(_("Confirm Delete"), errmsg, type="custom",
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custom_buttons=[_("Cancel"), _("_Delete")],
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custom_icon="question")
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return rc
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def confirmResetPartitionState(intf):
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"""Confirm reset of partitioning to that present on the system."""
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rc = intf.messageWindow(_("Confirm Reset"),
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_("Are you sure you want to reset the "
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"partition table to its original state?"),
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type="yesno", custom_icon="question")
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return rc
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