129 lines
4.1 KiB
Python
129 lines
4.1 KiB
Python
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#
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# Formatting tasks
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#
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# Copyright (C) 2018 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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from pyanaconda.modules.common.task import Task
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from pyanaconda.anaconda_loggers import get_module_logger
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from blivet import blockdev
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log = get_module_logger(__name__)
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__all__ = ["FindFormattableDASDTask", "DASDFormatTask"]
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class FindFormattableDASDTask(Task):
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"""A task for finding DASDs for formatting."""
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def __init__(self, disks, can_format_unformatted=False, can_format_ldl=False):
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"""Create a new task.
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:param disks: a list of disks to search
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:param can_format_unformatted: can we format unformatted?
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:param can_format_ldl: can we format LDL?
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"""
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super().__init__()
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self._disks = disks
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self._can_format_unformatted = can_format_unformatted
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self._can_format_ldl = can_format_ldl
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@property
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def name(self):
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"""Name of the task."""
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return "Finding DASDs for formatting"
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def run(self):
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"""Run the task."""
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return list(set(
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self._get_unformatted_dasds(self._disks)
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+ self._get_ldl_dasds(self._disks)
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))
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def _get_unformatted_dasds(self, disks):
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"""Returns a list of unformatted DASDs."""
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result = []
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if not self._can_format_unformatted:
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log.debug("We are not allowed to format unformatted DASDs.")
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return result
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for disk in disks:
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if self._is_unformatted_dasd(disk):
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log.debug("Found unformatted DASD: %s (%s)", disk.path, disk.busid)
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result.append(disk)
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return result
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def _is_unformatted_dasd(self, disk):
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"""Is it an unformatted DASD?"""
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return self._is_dasd(disk) \
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and not blockdev.s390.dasd_is_fba(disk.name) \
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and blockdev.s390.dasd_needs_format(disk.busid)
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def _is_dasd(self, disk):
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"""Is it a DASD disk?"""
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return disk.type == "dasd"
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def _get_ldl_dasds(self, disks):
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"""Returns a list of LDL DASDs."""
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result = []
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if not self._can_format_ldl:
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log.debug("We are not allowed to format LDL DASDs.")
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return result
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for disk in disks:
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if self._is_ldl_dasd(disk):
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log.debug("Found LDL DASD: %s (%s)", disk.path, disk.busid)
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result.append(disk)
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return result
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def _is_ldl_dasd(self, disk):
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"""Is it an LDL DASD?"""
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return self._is_dasd(disk) and blockdev.s390.dasd_is_ldl(disk.name)
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class DASDFormatTask(Task):
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"""A task for formatting DASDs"""
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def __init__(self, dasds):
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"""Create a new task.
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:param dasds: a list of names of DASDs to format
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"""
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super().__init__()
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self._dasds = dasds
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@property
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def name(self):
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return "Formatting DASDs"
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def run(self):
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for disk_name in self._dasds:
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self._do_format(disk_name)
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def _do_format(self, disk_name):
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"""Format the specified DASD disk."""
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try:
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self.report_progress("Formatting {}".format(disk_name))
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blockdev.s390.dasd_format(disk_name)
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except blockdev.S390Error as err:
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self.report_progress("Failed formatting {}".format(disk_name))
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log.error(err)
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