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This introduces the concept of BTRFS volumes in the storage page, a BTRFS volume can have multiple device(s). The first version won't implement adding/removing devices but should support showing them and making sense of it. We also show the btrfs subvolumes of a volume and should in the future allow creating of subvolumes under a subvolume and the root.
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| /* | ||
| * This file is part of Cockpit. | ||
| * | ||
| * Copyright (C) 2023 Red Hat, Inc. | ||
| * | ||
| * Cockpit is free software; you can redistribute it and/or modify it | ||
| * under the terms of the GNU Lesser General Public License as published by | ||
| * the Free Software Foundation; either version 2.1 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * Cockpit 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 | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with Cockpit; If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
||
| import cockpit from "cockpit"; | ||
| import React from "react"; | ||
| import client from "../client"; | ||
|
|
||
| import { CardBody } from "@patternfly/react-core/dist/esm/components/Card/index.js"; | ||
| import { Stack, StackItem } from "@patternfly/react-core/dist/esm/layouts/Stack/index.js"; | ||
| import { DescriptionList } from "@patternfly/react-core/dist/esm/components/DescriptionList/index.js"; | ||
|
|
||
| import { SCard } from "../utils/card.jsx"; | ||
| import { SDesc } from "../utils/desc.jsx"; | ||
| import { PageChildrenCard, PageCrossrefCard, ActionButtons, new_page, page_type, get_crossrefs } from "../pages.jsx"; | ||
| import { fmt_size, fmt_size_long } from "../utils.js"; | ||
|
|
||
| const _ = cockpit.gettext; | ||
|
|
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| function btrfs_usage(uuid) { | ||
| const block_devices = client.uuids_btrfs_blocks[uuid]; | ||
| console.log(block_devices); | ||
|
|
||
| let size = 0; | ||
| for (const block_device of block_devices) { | ||
| size += client.blocks[block_device.path].Size; | ||
| } | ||
| const used = client.blocks_fsys_btrfs[block_devices[0].path].data.used; | ||
|
|
||
| // const block_fsys = client.blocks_fsys[volume.path]; | ||
| // const mount_point = block_fsys && block_fsys.MountPoints[0]; | ||
| // let use = mount_point && client.fsys_sizes.data[decode_filename(mount_point)]; | ||
| // if (!use) { | ||
| // const blocks = []; | ||
| // Object.keys(client.blocks_fsys_btrfs).forEach(obj_path => { | ||
| // const blk = client.blocks_fsys_btrfs[obj_path]; | ||
| // if (blk.data.uuid === volume.data.uuid) { | ||
| // blocks.push(client.blocks[obj_path]); | ||
| // } | ||
| // }); | ||
| // use = [volume.data.used, blocks.reduce((sum, b) => sum + b.Size, 0)]; | ||
| // } | ||
| // console.log(use); | ||
| return [used, size]; | ||
| } | ||
|
|
||
| /* | ||
| * Udisks is a disk/block library so it manages that, btrfs turns this a bit | ||
| * around and has one "volume" which can have multiple blocks by a unique uuid. | ||
| */ | ||
| export function make_btrfs_volume_page(parent, uuid) { | ||
| const block_devices = client.uuids_btrfs_blocks[uuid]; | ||
|
|
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| const device = client.blocks_fsys_btrfs[block_devices[0].path]; | ||
| // TODO: label is optional, but do we want to show uuid then? | ||
| const name = device.data.label || uuid; | ||
| const total_capacity = btrfs_usage(uuid)[1]; | ||
| const btrfs_volume_page = new_page({ | ||
| location: ["btrfs-volume", name], | ||
| parent, | ||
| name, | ||
| columns: [ | ||
| _("Btrfs volume"), | ||
| "", | ||
| fmt_size(total_capacity), | ||
| ], | ||
| component: BtrfsVolumePage, | ||
| props: { block_devices, name: device.data.label, uuid: device.data.uuid, total_capacity }, | ||
| actions: [], | ||
| }); | ||
|
|
||
| for (const blk of block_devices) { | ||
| const device = client.blocks_fsys_btrfs[blk.path]; | ||
| device.GetSubvolumes(false, {}).then(subvolumes => { | ||
| for (const subvolume of subvolumes) { | ||
| make_btrfs_volume_subvolume(btrfs_volume_page, uuid, subvolume); | ||
| } | ||
| }); | ||
| } | ||
| } | ||
|
|
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| function make_btrfs_volume_subvolume(parent, uuid, subvol) { | ||
| const [id, parent_id, path] = subvol; | ||
| new_page({ | ||
| location: ["btrfs-volume", uuid, id], | ||
| parent, | ||
| name: path, | ||
| columns: [ | ||
| _("Btrfs subvolume"), | ||
| id, | ||
| parent_id, | ||
| ], | ||
| component: BtrfsVolumePage, | ||
| props: { uuid, id, parent_id, path }, | ||
| actions: [], | ||
| }); | ||
| } | ||
|
|
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| const BtrfsVolumePage = ({ page, block_devices, name, uuid, total_capacity, subvolumes }) => { | ||
| let crossrefs = []; | ||
| for (const blk of block_devices) { | ||
| crossrefs = crossrefs.concat(get_crossrefs(blk)); | ||
| } | ||
| return ( | ||
| <Stack hasGutter> | ||
| <StackItem> | ||
| <SCard title={page_type(page)} actions={<ActionButtons page={page} />}> | ||
| <CardBody> | ||
| <DescriptionList className="pf-m-horizontal-on-sm"> | ||
| <SDesc title={_("Label")} value={name} /> | ||
| <SDesc title={_("UUID")} value={uuid} /> | ||
| <SDesc title={_("Capacity")} value={fmt_size_long(total_capacity)} /> | ||
| </DescriptionList> | ||
| </CardBody> | ||
| </SCard> | ||
| </StackItem> | ||
| <StackItem> | ||
| <PageCrossrefCard title={_("Devices")} | ||
| crossrefs={crossrefs} /> | ||
| </StackItem> | ||
| <StackItem> | ||
| <PageChildrenCard title={_("Subvolumes")} | ||
| emptyCaption={_("No subvolumes")} | ||
| page={page} /> | ||
| </StackItem> | ||
| </Stack> | ||
| ); | ||
| }; |
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