add lz4

internal/restore/restore.go

@@ -3,7 +3,6 @@
 package restore
 
 import (
-	"compress/gzip"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -15,6 +14,7 @@ import (
 	"time"
 
 	"github.com/mistifyio/go-zfs"
+	"github.com/pierrec/lz4/v4"
 )
 
 // SnapshotMetadata represents snapshot information from the server.
@@ -97,7 +97,7 @@ func (c *Client) DisplaySnapshots(snapshots []*SnapshotMetadata) {
 		sizeGB := float64(snap.SizeBytes) / (1024 * 1024 * 1024)
 		compressed := ""
 		if snap.Compressed {
-			compressed = " (gz)"
+			compressed = " (lz4)"
 		}
 
 		fmt.Printf("%-4d %-25s %-20s %7.2f GB   %-10s %s%s\n",
@@ -154,13 +154,9 @@ func (c *Client) RestoreSnapshot(snapshot *SnapshotMetadata, targetDataset strin
 	// Create decompression reader if needed
 	var reader io.Reader = resp.Body
 	if snapshot.Compressed {
-		fmt.Printf("  Decompressing...\n")
-		gzReader, err := gzip.NewReader(resp.Body)
-		if err != nil {
-			return fmt.Errorf("failed to create gzip reader: %v", err)
-		}
-		defer gzReader.Close()
-		reader = gzReader
+		fmt.Printf("  Decompressing with LZ4...\n")
+		lz4Reader := lz4.NewReader(resp.Body)
+		reader = lz4Reader
 	}
 
 	// Receive into ZFS