src/lib/y2storage/proposal/space_maker_prospects/delete_partition.rb
# Copyright (c) [2018-2024] SUSE LLC
#
# All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of version 2 of the GNU General Public License as published
# by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, contact SUSE LLC.
#
# To contact SUSE LLC about this file by physical or electronic mail, you may
# find current contact information at www.suse.com.
require "y2storage/proposal/space_maker_prospects/partition_prospect"
module Y2Storage
module Proposal
module SpaceMakerProspects
# Represents the prospect action of deleting a given partition
#
# @see Base
class DeletePartition < PartitionProspect
# @param partition [Partition] partition to delete
# @param disk_analyzer [DiskAnalyzer] see {#analyzer}
# @param for_delete_all [Boolean] if the permissions are being checked
# as part of the first step which deletes unwanted partitions when the
# corresponding delete_mode is :all
def initialize(partition, disk_analyzer, for_delete_all)
@for_delete_all = for_delete_all
super(partition, disk_analyzer)
@partition_id = partition.id
end
# Type of the partition to be deleted, according to DiskAnalyzer
#
# @return [Symbol] :windows, :linux or :other
def partition_type
@partition_type ||=
if analyzer.windows_partitions(disk_name).any? { |part| part.name == device_name }
:windows
elsif analyzer.linux_partitions(disk_name).any? { |part| part.name == device_name }
:linux
else
:other
end
end
# Whether performing the action would be acceptable
#
# @param settings [ProposalSettings]
# @return [Boolean]
def allowed?(settings)
allowed = allowed_type?(settings, partition_type)
if irst? && windows_in_disk? && allowed
# Second line of defense for IRST partitions
log.info "#{device_name} seems to be used by a Windows installation, double-checking"
allowed_type?(settings, :windows)
else
allowed
end
end
# Whether the action should be performed just as last resort to make
# space, after having tried to delete all the other allowed partitions.
#
# In other words, DeletePartition prospects returning true for this should
# only be considered when there is no available DeletePartition prospect
# that returns false.
#
# @return [Boolean]
def last_resort?
irst?
end
# @return [String]
def to_s
"<#{sid} (#{device_name}) - #{partition_type}>"
end
private
# @return [PartitionId]
attr_reader :partition_id
attr_reader :for_delete_all
# Whether the partition is an Intel Rapid Start Technology partition
#
# @return [Boolean]
def irst?
partition_id.is?(:irst)
end
# @see #allowed?
def allowed_type?(settings, type)
if for_delete_all
settings.delete_forced?(type)
else
!settings.delete_forbidden?(type)
end
end
# @see #action
def action_class
SpaceMakerActions::Delete
end
end
end
end
end