Add 'wal' command

cmd/litestream/snapshots.go

@@ -74,13 +74,13 @@ func (c *SnapshotsCommand) Run(ctx context.Context, args []string) (err error) {
 
 	// List all snapshots.
 	w := tabwriter.NewWriter(os.Stdout, 0, 8, 1, '\t', 0)
-	fmt.Fprintln(w, "replica\tname\tgeneration\tindex\tcreated")
+	fmt.Fprintln(w, "replica\tgeneration\tindex\tsize\tcreated")
 	for _, info := range infos {
-		fmt.Fprintf(w, "%s\t%s\t%s\t%d\t%s\n",
+		fmt.Fprintf(w, "%s\t%s\t%d\t%d\t%s\n",
 			info.Replica,
-			info.Name,
 			info.Generation,
 			info.Index,
+			info.Size,
 			info.CreatedAt.Format(time.RFC3339),
 		)
 	}