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PartitionEditor: Add the beginnings of a partition editor :^)

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This adds a new application PartitionEditor which will eventually be
used to create and edit partition tables. Since LibPartition does not
know how to write partition tables yet, it is currently read-only.

Devices are discovered by scanning /dev for block device files.
Since block devices are chmod 600, PartitionEditor be must run as root.

By default Serenity uses the entire disk for the ext2 filesystem
without a partition table. This isn't useful for testing as the
partition list for the default disk will be empty. To test properly,
I created a few disk images using various partitioning schemes
(MBR, EBR, and GPT) and attached them using the following command:

export SERENITY_EXTRA_QEMU_ARGS="
  -drive file=/path/to/mbr.img,format=raw,index=1,media=disk
  -drive file=/path/to/ebr.img,format=raw,index=2,media=disk
  -drive file=/path/to/gpt.img,format=raw,index=3,media=disk"
This commit is contained in:
Samuel Bowman 2022-06-27 22:48:30 -04:00 • committed by Linus Groh
parent 7b8088c78d
commit 7a8953a833
7 changed files with 256 additions and 0 deletions
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39
Userland/Applications/PartitionEditor/PartitionModel.h Normal file
View file

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/*
* Copyright (c) 2022, Samuel Bowman <sam@sambowman.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGUI/Model.h>
#include <LibPartition/PartitionTable.h>
namespace PartitionEditor {
class PartitionModel final : public GUI::Model {
public:
enum Column {
Partition,
StartBlock,
EndBlock,
__Count,
};
static NonnullRefPtr<PartitionModel> create() { return adopt_ref(*new PartitionModel()); }
virtual ~PartitionModel() override = default;
virtual int row_count(GUI::ModelIndex const& = GUI::ModelIndex()) const override { return m_partition_table->partitions_count(); }
virtual int column_count(GUI::ModelIndex const& = GUI::ModelIndex()) const override { return Column::__Count; }
virtual String column_name(int) const override;
virtual GUI::Variant data(GUI::ModelIndex const&, GUI::ModelRole) const override;
ErrorOr<void> set_device_path(String const&);
private:
PartitionModel() = default;
OwnPtr<Partition::PartitionTable> m_partition_table;
};
}