Can convert QCow2 to raw file

virtweb_backend/src/utils/file_disks_utils.rs

@@ -35,7 +35,7 @@ pub enum DiskFileFormat {
 impl DiskFileFormat {
     pub fn ext(&self) -> &'static [&'static str] {
         match self {
-            DiskFileFormat::Raw { .. } => &["", "raw"],
+            DiskFileFormat::Raw { .. } => &["raw", ""],
             DiskFileFormat::QCow2 { .. } => &["qcow2"],
             DiskFileFormat::CompressedRaw => &["raw.gz"],
             DiskFileFormat::CompressedQCow2 => &["qcow2.gz"],
@@ -153,7 +153,9 @@ impl DiskFileInfo {
     pub fn convert(&self, dest_file: &Path, dest_format: DiskFileFormat) -> anyhow::Result<()> {
         // Create a temporary directory to perform the operation
         let temp_dir = tempfile::tempdir_in(&AppConfig::get().temp_dir)?;
-        let temp_file = temp_dir.path().join("temp_file");
+        let temp_file = temp_dir
+            .path()
+            .join(format!("temp_file.{}", dest_format.ext()[0]));
 
         // Prepare the conversion
         let mut cmd = match (self.format, dest_format) {
@@ -178,6 +180,13 @@ impl DiskFileInfo {
                 cmd
             }
 
+            // Convert QCow2 to Raw file
+            (DiskFileFormat::QCow2 { .. }, DiskFileFormat::Raw { .. }) => {
+                let mut cmd = Command::new(constants::QEMU_IMAGE_PROGRAM);
+                cmd.arg("convert").arg(&self.file_path).arg(&temp_file);
+                cmd
+            }
+
             // Dumb copy of file
             (a, b) if a == b => {
                 let mut cmd = Command::new(constants::COPY_PROGRAM);