bin/tau: remove key arg and only use the key from file

bin/tau/README.md

@@ -39,15 +39,8 @@ Also note that for the first time ever running seed node you must run it with
 ```
 This will generate a new secret key in `/home/${USER}/.config/tau/secret_key` that 
 you can share with nodes you want them to get and decrypt your tasks, otherwise if you
-have already generated or got a copy from a peer place it either in the same directory
-`/home/${USER}/.config/tau/secret_key`, or in the config file.
-	
-	in config file:
-
-		## Secret key
-		key="SECRET_KEY_GOES_HERE"
-
-DO NOT use `--key` in terminal to pass the secret key.
+have already generated or got a copy from a peer place it in the same directory
+`/home/${USER}/.config/tau/secret_key`.
 
 ### Inbound Node
 
@@ -153,7 +146,7 @@ Output:
 ### List tasks with filters
 
 ```shell
-% tau all   		 # lists all tasks
+% tau  		   		 # lists all tasks
 % tau open 			 # lists currently open tasks
 % tau pause 		 # lists currently paused tasks
 % tau 0522 		 	 # lists tasks created at May 2022

bin/tau/taud/src/main.rs

@@ -98,12 +98,6 @@ async fn realmain(settings: Args, executor: Arc<Executor<'_>>) -> Result<()> {
         let sk_string = hex::encode(secret.as_bytes());
         save::<String>(&datastore_path.join("secret_key"), &sk_string)?;
         secret
-    } else if settings.key.is_some() {
-        let sk_str = settings.key.unwrap();
-        save::<String>(&datastore_path.join("secret_key"), &sk_str)?;
-        let sk_bytes = hex::decode(sk_str)?;
-        let sk_bytes: [u8; KEY_SIZE] = sk_bytes.as_slice().try_into()?;
-        SecretKey::try_from(sk_bytes)?
     } else {
         let loaded_key = match load::<String>(&datastore_path.join("secret_key")) {
             Ok(key) => key,

bin/tau/taud/src/settings.rs

@@ -31,7 +31,4 @@ pub struct Args {
     /// Generate a new secret key
     #[structopt(long)]
     pub key_gen: bool,
-    /// Load a secret key
-    #[structopt(long)]
-    pub key: Option<String>,
 }

bin/tau/taud_config.toml

@@ -4,9 +4,6 @@
 ## Sets Datastore Path
 #datastore="~/.config/tau"
 
-## Secret key
-#key=""
-
 ## Raft net settings
 [net]
 ## P2P accept address