create darkfi-cli binary file

Cargo.toml

@@ -107,6 +107,9 @@ path = "src/bin/gatewayd.rs"
 [[bin]]
 name = "darkfid"
 path = "src/bin/darkfid.rs"
+[[bin]]
+name = "darkfi-cli"
+path = "src/bin/darkfi-cli.rs"
 
 [profile.release]
 debug = 1

src/bin/darkfi-cli.rs

@@ -0,0 +1,64 @@
+use drk::cli::{ClientCliConfig, DarkfiCli, DarkfiCliConfig};
+use drk::Result;
+
+use async_executor::Executor;
+use easy_parallel::Parallel;
+
+use async_std::sync::Arc;
+use std::path::PathBuf;
+
+async fn start(_executor: Arc<Executor<'_>>, _config: Arc<DarkfiCliConfig>) -> Result<()> {
+    Ok(())
+}
+
+fn main() -> Result<()> {
+    use simplelog::*;
+
+    let mut config = DarkfiCliConfig::load(PathBuf::from("darkfi_config_file"))?;
+    let options = Arc::new(DarkfiCli::load(&mut config)?);
+
+    if options.change_config {
+        config.save(PathBuf::from("darkfi_config_file"))?;
+        return Ok(());
+    }
+
+    let config = Arc::new(config);
+
+    let ex = Arc::new(Executor::new());
+    let (signal, shutdown) = async_channel::unbounded::<()>();
+
+    let logger_config = ConfigBuilder::new().set_time_format_str("%T%.6f").build();
+
+    let debug_level = if options.verbose {
+        LevelFilter::Debug
+    } else {
+        LevelFilter::Off
+    };
+
+    let log_path = config.log_path.clone();
+    CombinedLogger::init(vec![
+        TermLogger::new(debug_level, logger_config, TerminalMode::Mixed).unwrap(),
+        WriteLogger::new(
+            LevelFilter::Debug,
+            Config::default(),
+            std::fs::File::create(log_path).unwrap(),
+        ),
+    ])
+    .unwrap();
+
+    let ex2 = ex.clone();
+
+    let (_, result) = Parallel::new()
+        // Run four executor threads.
+        .each(0..3, |_| smol::future::block_on(ex.run(shutdown.recv())))
+        // Run the main future on the current thread.
+        .finish(|| {
+            smol::future::block_on(async move {
+                start(ex2, config).await?;
+                drop(signal);
+                Ok::<(), drk::Error>(())
+            })
+        });
+
+    result
+}