Can decompress QCow2

virtweb_backend/src/constants.rs

@@ -126,3 +126,6 @@ pub const IP_PROGRAM: &str = "/usr/sbin/ip";
 
 /// Copy program path
 pub const COPY_PROGRAM: &str = "/bin/cp";
+
+/// Gzip program path
+pub const GZIP_PROGRAM: &str = "/usr/bin/gzip";

virtweb_backend/src/utils/file_disks_utils.rs

@@ -1,6 +1,7 @@
 use crate::app_config::AppConfig;
 use crate::constants;
 use crate::utils::file_size_utils::FileSize;
+use std::fs::File;
 use std::os::linux::fs::MetadataExt;
 use std::path::{Path, PathBuf};
 use std::process::Command;
@@ -156,6 +157,17 @@ impl DiskFileInfo {
 
         // Prepare the conversion
         let mut cmd = match (self.format, dest_format) {
+            // Decompress QCow2
+            (DiskFileFormat::CompressedQCow2, DiskFileFormat::QCow2 { .. }) => {
+                let mut cmd = Command::new(constants::GZIP_PROGRAM);
+                cmd.arg("--keep")
+                    .arg("--decompress")
+                    .arg("--to-stdout")
+                    .arg(&self.file_path)
+                    .stdout(File::create(&temp_file)?);
+                cmd
+            }
+
             // Dumb copy of file
             (a, b) if a == b => {
                 let mut cmd = Command::new(constants::COPY_PROGRAM);