110 lines
3.8 KiB
Python
110 lines
3.8 KiB
Python
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#
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# DASD module.
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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 blivet import arch
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from pyanaconda.anaconda_loggers import get_module_logger
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from pyanaconda.core.dbus import DBus
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from pyanaconda.modules.common.constants.objects import DASD
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from pyanaconda.modules.common.errors.storage import UnknownDeviceError
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from pyanaconda.modules.storage.dasd.dasd_interface import DASDInterface
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from pyanaconda.modules.storage.dasd.discover import DASDDiscoverTask
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from pyanaconda.modules.storage.dasd.format import DASDFormatTask, FindFormattableDASDTask
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from pyanaconda.modules.storage.storage_subscriber import StorageSubscriberModule
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log = get_module_logger(__name__)
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class DASDModule(StorageSubscriberModule):
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"""The DASD module."""
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def __init__(self):
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super().__init__()
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self._can_format_unformatted = False
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self._can_format_ldl = False
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def publish(self):
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"""Publish the module."""
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DBus.publish_object(DASD.object_path, DASDInterface(self))
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def is_supported(self):
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"""Is this module supported?"""
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return arch.is_s390()
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def _get_device(self, name):
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"""Find a device by its name.
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:param name: a name of the device
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:return: an instance of the Blivet's device
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:raise: UnknownDeviceError if no device is found
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"""
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device = self.storage.devicetree.get_device_by_name(name, hidden=True)
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if not device:
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raise UnknownDeviceError(name)
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return device
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def _get_devices(self, names):
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"""Find devices by their names.
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:param names: names of the devices
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:return: a list of instances of the Blivet's device
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"""
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return list(map(self._get_device, names))
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def on_format_unrecognized_enabled_changed(self, value):
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"""Update the flag for formatting unformatted DASDs."""
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self._can_format_unformatted = value
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def on_format_ldl_enabled_changed(self, value):
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"""Update the flags for formatting LDL DASDs."""
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self._can_format_ldl = value
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def discover_with_task(self, device_number):
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"""Discover a DASD.
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:param device_number: a device number
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:return: a task
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"""
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return DASDDiscoverTask(device_number)
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def find_formattable(self, disk_names):
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"""Find DASDs for formatting.
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:param disk_names: a list of disk names to search
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:return: a list of DASDs for formatting
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"""
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task = FindFormattableDASDTask(
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self._get_devices(disk_names),
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self._can_format_unformatted,
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self._can_format_ldl
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)
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found_disks = task.run()
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return [d.name for d in found_disks]
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def format_with_task(self, dasds):
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"""Format specified DASD disks.
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:param dasds: a list of disk names
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:return: a DBus path to a task
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"""
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return DASDFormatTask(dasds)
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