Add a `connect` command for testing.

zebrad/src/commands.rs

@@ -10,10 +10,11 @@
 //! See the `impl Configurable` below for how to specify the path to the
 //! application's configuration file.
 
+mod connect;
 mod start;
 mod version;
 
-use self::{start::StartCmd, version::VersionCmd};
+use self::{connect::ConnectCmd, start::StartCmd, version::VersionCmd};
 use crate::config::ZebradConfig;
 use abscissa_core::{
     config::Override, Command, Configurable, FrameworkError, Help, Options, Runnable,
@@ -37,6 +38,10 @@ pub enum ZebradCmd {
     /// The `version` subcommand
     #[options(help = "display version information")]
     Version(VersionCmd),
+
+    /// The `connect` subcommand
+    #[options(help = "testing stub for dumping network messages")]
+    Connect(ConnectCmd),
 }
 
 /// This trait allows you to define how application configuration is loaded.

zebrad/src/commands/connect.rs

@@ -0,0 +1,33 @@
+//! `connect` subcommand - test stub for talking to zcashd
+
+use crate::prelude::*;
+
+use abscissa_core::{Command, Options, Runnable};
+
+/// `connect` subcommand
+#[derive(Command, Debug, Options)]
+pub struct ConnectCmd {
+    /// The address of the node to connect to.
+    #[options(
+        help = "The address of the node to connect to.",
+        default = "127.0.0.1:8233"
+    )]
+    addr: std::net::SocketAddr,
+}
+
+impl Runnable for ConnectCmd {
+    /// Start the application.
+    fn run(&self) {
+        info!(connect.addr = ?self.addr);
+
+        use crate::components::tokio::TokioComponent;
+
+        app_reader()
+            .state()
+            .components
+            .get_downcast_ref::<TokioComponent>()
+            .expect("TokioComponent should be available")
+            .rt
+            .block_on(tokio::future::pending::<()>());
+    }
+}