src/lib/y2partitioner/actions/add_bcache.rb
# Copyright (c) [2018-2020] 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 "yast"
require "y2partitioner/actions/base"
require "y2partitioner/actions/controllers/bcache"
require "y2partitioner/dialogs/bcache"
require "y2partitioner/ui_state"
module Y2Partitioner
module Actions
# Action for adding a Bcache device, see {Actions::Base}
class AddBcache < Base
def initialize
super
textdomain "storage"
@controller = Controllers::Bcache.new
end
private
# @return [Controllers::Bcache]
attr_reader :controller
# List of errors that avoid to create a Bcache
#
# @see Actions::Base#errors
#
# @return [Array<String>]
def errors
(super + [no_backing_devices_error]).compact
end
# Error when there is no suitable backing devices for creating a Bcache
#
# @return [String, nil] nil if there are suitable backing devices.
def no_backing_devices_error
return nil if suitable_backing_devices?
# TRANSLATORS: Error message.
_("There are not enough suitable unused devices to create a bcache.")
end
# Opens a dialog to create a Bcache
#
# The Bcache is created only if the dialog is accepted.
#
# @see Actions::Base#perform_action
def perform_action
dialog = Dialogs::Bcache.new(controller)
return unless dialog.run == :next
controller.create_bcache(dialog.backing_device, dialog.caching_device, dialog.options)
UIState.instance.select_row(controller.bcache.sid)
:finish
end
# Whether there is suitable backing devices
#
# @return [Boolean]
def suitable_backing_devices?
controller.suitable_backing_devices.any?
end
end
end
end