Can compress raw files

virtweb_backend/src/utils/file_disks_utils.rs

@@ -212,6 +212,45 @@ impl DiskFileInfo {
                 cmd
             }
 
+            // Render raw file non sparse
+            (DiskFileFormat::Raw { is_sparse: true }, DiskFileFormat::Raw { is_sparse: false }) => {
+                let mut cmd = Command::new(constants::COPY_PROGRAM);
+                cmd.arg("--sparse=never")
+                    .arg(&self.file_path)
+                    .arg(&temp_file);
+                cmd
+            }
+
+            // Render raw file sparse
+            (DiskFileFormat::Raw { is_sparse: false }, DiskFileFormat::Raw { is_sparse: true }) => {
+                let mut cmd = Command::new(constants::COPY_PROGRAM);
+                cmd.arg("--sparse=always")
+                    .arg(&self.file_path)
+                    .arg(&temp_file);
+                cmd
+            }
+
+            // Compress Raw
+            (DiskFileFormat::Raw { .. }, DiskFileFormat::CompressedRaw) => {
+                let mut cmd = Command::new(constants::GZIP_PROGRAM);
+                cmd.arg("--keep")
+                    .arg("--to-stdout")
+                    .arg(&self.file_path)
+                    .stdout(File::create(&temp_file)?);
+                cmd
+            }
+
+            // Decompress Raw to not sparse file
+            (DiskFileFormat::CompressedRaw, DiskFileFormat::Raw { is_sparse: false }) => {
+                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);

virtweb_frontend/src/routes/DiskImagesRoute.tsx

@@ -226,6 +226,15 @@ function DiskImageList(p: {
       field: "format",
       headerName: "Format",
       flex: 1,
+      renderCell(params) {
+        let content = params.row.format;
+
+        if (params.row.format === "Raw") {
+          content += params.row.is_sparse ? " (Sparse)" : " (Fixed)";
+        }
+
+        return content;
+      },
     },
     {
       field: "file_size",