Refactor beacon node CLI

beacon_node/websocket_server/Cargo.toml

@@ -7,7 +7,6 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-clap = "2.33.0"
 exit-future = "0.1.4"
 futures = "0.1.29"
 serde = "1.0.102"

beacon_node/websocket_server/src/config.rs

@@ -1,5 +1,4 @@
-use clap::ArgMatches;
-use serde::{Deserialize, Serialize};
+use serde_derive::{Deserialize, Serialize};
 use std::net::Ipv4Addr;
 
 /// The core configuration of a Lighthouse beacon node.
@@ -21,25 +20,3 @@ impl Default for Config {
         }
     }
 }
-
-impl Config {
-    pub fn apply_cli_args(&mut self, args: &ArgMatches) -> Result<(), &'static str> {
-        if args.is_present("no-ws") {
-            self.enabled = false;
-        }
-
-        if let Some(rpc_address) = args.value_of("ws-address") {
-            self.listen_address = rpc_address
-                .parse::<Ipv4Addr>()
-                .map_err(|_| "ws-address is not a valid IPv4 address.")?;
-        }
-
-        if let Some(rpc_port) = args.value_of("ws-port") {
-            self.port = rpc_port
-                .parse::<u16>()
-                .map_err(|_| "ws-port is not a valid u16.")?;
-        }
-
-        Ok(())
-    }
-}