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Add qcow2.xz file format support

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This commit is contained in:
Pierre HUBERT
2025-06-09 16:58:21 +02:00
parent b2529c250a
commit 759361d9f6
4 changed files with 56 additions and 19 deletions
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3
virtweb_backend/src/constants.rs
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@ -137,6 +137,9 @@ pub const PROGRAM_COPY: &str = "/bin/cp";
/// Gzip program path
pub const PROGRAM_GZIP: &str = "/usr/bin/gzip";
/// XZ program path
pub const PROGRAM_XZ: &str = "/usr/bin/xz";
/// Bash program
pub const PROGRAM_BASH: &str = "/usr/bin/bash";

56
virtweb_backend/src/utils/file_disks_utils.rs
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@ -28,8 +28,10 @@ pub enum DiskFileFormat {
#[serde(default)]
virtual_size: FileSize,
},
CompressedRaw,
CompressedQCow2,
GzCompressedRaw,
GzCompressedQCow2,
XzCompressedRaw,
XzCompressedQCow2,
}
impl DiskFileFormat {
@ -37,8 +39,10 @@ impl DiskFileFormat {
match self {
DiskFileFormat::Raw { .. } => &["raw", ""],
DiskFileFormat::QCow2 { .. } => &["qcow2"],
DiskFileFormat::CompressedRaw => &["raw.gz"],
DiskFileFormat::CompressedQCow2 => &["qcow2.gz"],
DiskFileFormat::GzCompressedRaw => &["raw.gz"],
DiskFileFormat::GzCompressedQCow2 => &["qcow2.gz"],
DiskFileFormat::XzCompressedRaw => &["raw.xz"],
DiskFileFormat::XzCompressedQCow2 => &["qcow2.xz"],
}
}
}
@ -81,9 +85,14 @@ impl DiskFileInfo {
},
"gz" if name.ends_with(".qcow2") => {
name = name.strip_suffix(".qcow2").unwrap_or(&name).to_string();
DiskFileFormat::CompressedQCow2
DiskFileFormat::GzCompressedQCow2
}
"gz" => DiskFileFormat::CompressedRaw,
"gz" => DiskFileFormat::GzCompressedRaw,
"xz" if name.ends_with(".qcow2") => {
name = name.strip_suffix(".qcow2").unwrap_or(&name).to_string();
DiskFileFormat::XzCompressedQCow2
}
"xz" => DiskFileFormat::XzCompressedRaw,
_ => anyhow::bail!("Unsupported disk extension: {ext}!"),
};
@ -159,8 +168,8 @@ impl DiskFileInfo {
// Prepare the conversion
let mut cmd = match (self.format, dest_format) {
// Decompress QCow2
(DiskFileFormat::CompressedQCow2, DiskFileFormat::QCow2 { .. }) => {
// Decompress QCow2 (GZIP)
(DiskFileFormat::GzCompressedQCow2, DiskFileFormat::QCow2 { .. }) => {
let mut cmd = Command::new(constants::PROGRAM_GZIP);
cmd.arg("--keep")
.arg("--decompress")
@ -170,8 +179,19 @@ impl DiskFileInfo {
cmd
}
// Compress QCow2
(DiskFileFormat::QCow2 { .. }, DiskFileFormat::CompressedQCow2) => {
// Decompress QCow2 (XZ)
(DiskFileFormat::XzCompressedQCow2, DiskFileFormat::QCow2 { .. }) => {
let mut cmd = Command::new(constants::PROGRAM_XZ);
cmd.arg("--stdout")
.arg("--keep")
.arg("--decompress")
.arg(&self.file_path)
.stdout(File::create(&temp_file)?);
cmd
}
// Compress QCow2 (Gzip)
(DiskFileFormat::QCow2 { .. }, DiskFileFormat::GzCompressedQCow2) => {
let mut cmd = Command::new(constants::PROGRAM_GZIP);
cmd.arg("--keep")
.arg("--to-stdout")
@ -180,6 +200,16 @@ impl DiskFileInfo {
cmd
}
// Compress QCow2 (Xz)
(DiskFileFormat::QCow2 { .. }, DiskFileFormat::XzCompressedQCow2) => {
let mut cmd = Command::new(constants::PROGRAM_XZ);
cmd.arg("--keep")
.arg("--to-stdout")
.arg(&self.file_path)
.stdout(File::create(&temp_file)?);
cmd
}
// Convert QCow2 to Raw file
(DiskFileFormat::QCow2 { .. }, DiskFileFormat::Raw { is_sparse }) => {
let mut cmd = Command::new(constants::PROGRAM_QEMU_IMAGE);
@ -245,7 +275,7 @@ impl DiskFileInfo {
}
// Compress Raw
(DiskFileFormat::Raw { .. }, DiskFileFormat::CompressedRaw) => {
(DiskFileFormat::Raw { .. }, DiskFileFormat::GzCompressedRaw) => {
let mut cmd = Command::new(constants::PROGRAM_GZIP);
cmd.arg("--keep")
.arg("--to-stdout")
@ -255,7 +285,7 @@ impl DiskFileInfo {
}
// Decompress Raw to not sparse file
(DiskFileFormat::CompressedRaw, DiskFileFormat::Raw { is_sparse: false }) => {
(DiskFileFormat::GzCompressedRaw, DiskFileFormat::Raw { is_sparse: false }) => {
let mut cmd = Command::new(constants::PROGRAM_GZIP);
cmd.arg("--keep")
.arg("--decompress")
@ -267,7 +297,7 @@ impl DiskFileInfo {
// Decompress Raw to sparse file
// https://benou.fr/www/ben/decompressing-sparse-files.html
(DiskFileFormat::CompressedRaw, DiskFileFormat::Raw { is_sparse: true }) => {
(DiskFileFormat::GzCompressedRaw, DiskFileFormat::Raw { is_sparse: true }) => {
let mut cmd = Command::new(constants::PROGRAM_BASH);
cmd.arg("-c").arg(format!(
"{} -d -c {} | {} conv=sparse of={}",

4
virtweb_frontend/src/api/DiskImageApi.ts
View File

@ -4,8 +4,8 @@ import { VMFileDisk, VMInfo } from "./VMApi";
export type DiskImageFormat =
| { format: "Raw"; is_sparse: boolean }
| { format: "QCow2"; virtual_size?: number }
| { format: "CompressedQCow2" }
| { format: "CompressedRaw" };
| { format: "GzCompressedQCow2" }
| { format: "GzCompressedRaw" };
export type DiskImage = {
file_size: number;

12
virtweb_frontend/src/dialogs/ConvertDiskImageDialog.tsx
View File

@ -42,13 +42,15 @@ export function ConvertDiskImageDialog(
setFormat({ format: value ?? ("QCow2" as any) });
if (value === "QCow2") setFilename(`${origFilename}.qcow2`);
if (value === "CompressedQCow2") setFilename(`${origFilename}.qcow2.gz`);
if (value === "GzCompressedQCow2") setFilename(`${origFilename}.qcow2.gz`);
if (value === "XzCompressedQCow2") setFilename(`${origFilename}.qcow2.xz`);
if (value === "Raw") {
setFilename(`${origFilename}.raw`);
// Check sparse checkbox by default
setFormat({ format: "Raw", is_sparse: true });
}
if (value === "CompressedRaw") setFilename(`${origFilename}.raw.gz`);
if (value === "GzCompressedRaw") setFilename(`${origFilename}.raw.gz`);
if (value === "XzCompressedRaw") setFilename(`${origFilename}.raw.xz`);
};
const handleSubmit = async () => {
@ -104,8 +106,10 @@ export function ConvertDiskImageDialog(
options={[
{ value: "QCow2" },
{ value: "Raw" },
{ value: "CompressedRaw" },
{ value: "CompressedQCow2" },
{ value: "GzCompressedRaw" },
{ value: "XzCompressedRaw" },
{ value: "GzCompressedQCow2" },
{ value: "XzCompressedQCow2" },
]}
/>