Add initial progress

validator_manager/src/lib.rs

@@ -0,0 +1,33 @@
+use clap::App;
+use clap::ArgMatches;
+use environment::Environment;
+use types::EthSpec;
+
+mod validator;
+
+pub const CMD: &str = "validator_manager";
+
+pub fn cli_app<'a, 'b>() -> App<'a, 'b> {
+    App::new(CMD)
+        .visible_aliases(&["vm", CMD])
+        .about("Utilities for managing a Lighthouse validator client via the HTTP API.")
+        .subcommand(validator::cli_app())
+}
+
+/// Run the account manager, returning an error if the operation did not succeed.
+pub async fn run<'a, T: EthSpec>(
+    matches: &'a ArgMatches<'a>,
+    env: Environment<T>,
+) -> Result<(), String> {
+    match matches.subcommand() {
+        (validator::CMD, Some(matches)) => validator::cli_run(matches, env).await?,
+        (unknown, _) => {
+            return Err(format!(
+                "{} is not a valid {} command. See --help.",
+                unknown, CMD
+            ));
+        }
+    }
+
+    Ok(())
+}