update list to the new code

src/main.rs

@@ -20,7 +20,7 @@ foil
 Usage:
   foil set [--namespace=<ns>] [--db=<db>]
   foil get [--namespace=<ns>] [--db=<db>]
-  foil list [--db=<db>]
+  foil list [--namespace=<ns>] [--db=<db>]
   foil transfer [--db=<db>]
   foil dump [--db=<db>]
   foil generate <spec>
@@ -92,13 +92,11 @@ fn get_master_key(db_conn: &mut db::DbHandle) -> [u8; 32] {
     master_key
 }
 
-fn list(mut db_conn: db::DbHandle, master_key: [u8; 32]) {
-    for host in db_conn
-        .list_accounts(master_key)
-        .into_iter()
-        .map(|account: db::Account| account.host)
-    {
-        println!("{}", host);
+fn list(mut db_conn: db::DbHandle, master_key: [u8; 32], namespace: &str) {
+    for note in db_conn.read_notes(master_key).unwrap() {
+        if note.namespace == namespace && note.category == "account" {
+            println!("{}", note.title);
+        }
     }
 }
 
@@ -195,7 +193,7 @@ fn main() -> Result<(), Box<dyn Error>> {
     } else if args.cmd_get {
         get(db_conn, master_key, &args.flag_namespace);
     } else if args.cmd_list {
-        list(db_conn, master_key);
+        list(db_conn, master_key, &args.flag_namespace);
     } else if args.cmd_transfer {
         transfer(db_conn, master_key);
     } else if args.cmd_dump {