134 lines
4.6 KiB
Ruby
134 lines
4.6 KiB
Ruby
# frozen_string_literal: true
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# Copyright (c) [2024] SUSE LLC
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#
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# All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of version 2 of the GNU General Public License as published
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# by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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# more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, contact SUSE LLC.
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#
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# To contact SUSE LLC about this file by physical or electronic mail, you may
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# find current contact information at www.suse.com.
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require "y2storage/proposal/space_maker"
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require "y2storage/proposal_settings"
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module Y2Storage
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module Proposal
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# Space maker for Agama.
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#
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# FIXME: this class must dissappear. It does not implement any own logic compared to the
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# original SpaceMaker. It simply encapsulates the conversion from Agama config to
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# ProposalSpaceSettings.
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class AgamaSpaceMaker < SpaceMaker
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# @param disk_analyzer [DiskAnalyzer]
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# @param config [Agama::Storage::Config]
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def initialize(disk_analyzer, config)
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super(disk_analyzer, space_settings(config))
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end
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private
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# Method used by the constructor to convert the Agama config to ProposalSpaceSettings
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#
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# @param config [Agama::Storage::Config]
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def space_settings(config)
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Y2Storage::ProposalSpaceSettings.new.tap do |target|
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target.strategy = :bigger_resize
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target.actions = space_actions(config)
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end
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end
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# Space actions from the given config.
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#
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# @param config [Agama::Storage::Config]
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# @return [Hash]
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def space_actions(config)
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actions = force_delete_actions(config)
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actions.concat(delete_actions(config))
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actions.concat(resize_actions(config))
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end
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# Space actions for devices that must be deleted.
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#
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# @param config [Agama::Storage::Config]
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# @return [Array<Y2Storage::SpaceActions::Delete>]
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def force_delete_actions(config)
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partition_configs = partitions(config).select(&:delete?)
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partition_names = device_names(partition_configs)
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partition_names.map { |p| Y2Storage::SpaceActions::Delete.new(p, mandatory: true) }
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end
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# Space actions for devices that might be deleted.
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#
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# @note #delete? takes precedence over #delete_if_needed?.
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#
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# @param config [Agama::Storage::Config]
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# @return [Array<Y2Storage::SpaceActions::Delete>]
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def delete_actions(config)
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partition_configs = partitions(config).select(&:delete_if_needed?).reject(&:delete?)
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partition_names = device_names(partition_configs)
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partition_names.map { |p| Y2Storage::SpaceActions::Delete.new(p) }
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end
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# Space actions for devices that might be resized
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#
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# @param config [Agama::Storage::Config]
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# @return [Array<Y2Storage::SpaceActions::Resize>]
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def resize_actions(config)
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partition_configs = partitions(config).select(&:found_device).select(&:size)
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# Resize actions contain information that is potentially useful for the SpaceMaker even
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# when they are only about growing and not shrinking
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partition_configs.map { |p| resize_action(p) }.compact
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end
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# @see #resize_actions
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#
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# @param part [Agama::Storage::Configs::Partition]
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# @return [Y2Storage::SpaceActions::Resize, nil]
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def resize_action(part)
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min = current_size?(part, :min) ? nil : part.size.min
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max = current_size?(part, :max) ? nil : part.size.max
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# If both min and max are equal to the current device size, there is nothing to do
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return unless min || max
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Y2Storage::SpaceActions::Resize.new(part.found_device.name, min_size: min, max_size: max)
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end
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# @see #resize_actions
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def current_size?(part, attr)
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part.found_device.size == part.size.public_send(attr)
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end
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# All partition configs from the given config.
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#
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# @param config [Agama::Storage::Config]
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# @return [Array<Agama::Storage::Configs::Partition>]
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def partitions(config)
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config.drives.flat_map(&:partitions)
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end
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# Device names from the given configs.
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#
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# @param configs [Array<#found_device>]
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# @return [Array<String>]
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def device_names(configs)
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configs
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.map(&:found_device)
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.compact
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.map(&:name)
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end
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end
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end
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end
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