Improve recovery

cli/src/lib.rs

@@ -27,6 +27,10 @@ macro_rules! configure_clapapp {
                 .long("recover")
                 .help("Attempt to recover the seed from the wallet")
                 .takes_value(false))
+            .arg(Arg::with_name("password")
+                .long("password")
+                .help("When recovering seed, specify a password for the encrypted wallet")
+                .takes_value(true))
             .arg(Arg::with_name("seed")
                 .short("s")
                 .long("seed")
@@ -234,7 +238,7 @@ pub fn command_loop(lightclient: Arc<LightClient>) -> (Sender<(String, Vec<Strin
     (command_tx, resp_rx)
 }
 
-pub fn attempt_recover_seed() {
+pub fn attempt_recover_seed(password: Option<String>) {
     // Create a Light Client Config in an attempt to recover the file.
     let config = LightClientConfig {
         server: "0.0.0.0:0".parse().unwrap(),
@@ -246,7 +250,7 @@ pub fn attempt_recover_seed() {
         data_dir: None,
     };
 
-    match LightClient::attempt_recover_seed(&config) {
+    match LightClient::attempt_recover_seed(&config, password) {
         Ok(seed) => println!("Recovered seed: '{}'", seed),
         Err(e)   => eprintln!("Failed to recover seed. Error: {}", e)
     };

cli/src/main.rs

@@ -13,9 +13,10 @@ pub fn main() {
     let fresh_app = App::new("Zecwallet CLI");
     let configured_app = configure_clapapp!(fresh_app);
     let matches = configured_app.get_matches();
+
     if matches.is_present("recover") {
         // Create a Light Client Config in an attempt to recover the file.
-        attempt_recover_seed();
+        attempt_recover_seed(matches.value_of("password").map(|s| s.to_string()));
         return;
     }
 
@@ -55,8 +56,9 @@ pub fn main() {
     let (command_tx, resp_rx) = match startup(server, dangerous, seed, birthday, !nosync, command.is_none()) {
         Ok(c) => c,
         Err(e) => {
-            eprintln!("Error during startup: {}", e);
-            error!("Error during startup: {}", e);
+            let emsg = format!("Error during startup:{}\nIf you repeatedly run into this issue, you might have to restore your wallet from your seed phrase.", e);
+            eprintln!("{}", emsg);
+            error!("{}", emsg);
             if cfg!(target_os = "unix" ) {
                 match e.raw_os_error() {
                     Some(13) => report_permission_error(),