Automatically load and save wallet

rust-lightclient/src/lightclient.rs

@@ -1,6 +1,7 @@
 use crate::lightwallet::LightWallet;
 
 use std::fs::File;
+use std::io;
 use std::io::prelude::*;
 
 use std::sync::Arc;
@@ -62,16 +63,22 @@ impl LightClient {
     }
 
     pub fn do_read(&mut self) {
+        print!("Reading wallet...");
+        io::stdout().flush().ok().expect("Could not flush stdout");
         let mut file_buffer = File::open("wallet.dat").unwrap();
         
         let lw = LightWallet::read(&mut file_buffer).unwrap();
         self.wallet = Arc::new(lw);
+        println!("[OK]");
     }
 
     pub fn do_save(&self) {
+        print!("Saving wallet...");
+        io::stdout().flush().ok().expect("Could not flush stdout");
         let mut file_buffer = File::create("wallet.dat").unwrap();
         
         self.wallet.write(&mut file_buffer).unwrap();
+        println!("[OK]");
     }