Allow bind to an address(for fpm-controller hosting purposes)

Author: Shobhit

src/commands/serve.rs

@@ -144,13 +144,13 @@ async fn serve_static(req: actix_web::HttpRequest) -> actix_web::HttpResponse {
 }
 
 #[actix_web::main]
-pub async fn serve(port: &str) -> std::io::Result<()> {
+pub async fn serve(bind_address: &str, port: &str) -> std::io::Result<()> {
     println!("### Server Started ###");
-    println!("Go to: http://127.0.0.1:{}", port);
+    println!("Go to: http://{}:{}", bind_address, port);
     actix_web::HttpServer::new(|| {
         actix_web::App::new().route("/{path:.*}", actix_web::web::get().to(serve_static))
     })
-    .bind(format!("127.0.0.1:{}", port))?
+    .bind(format!("{}:{}", bind_address, port))?
     .run()
     .await
 }

src/main.rs

@@ -73,9 +73,13 @@ async fn main() -> fpm::Result<()> {
         fpm::stop_tracking(&config, source, target).await?;
     }
     if let Some(mark) = matches.subcommand_matches("serve") {
-        let port = mark.value_of("port").unwrap_or("8000").to_string();
+        let port = mark
+            .value_of("port")
+            .unwrap_or(mark.value_of("positional_port").unwrap_or("8000"))
+            .to_string();
+        let bind = mark.value_of("bind").unwrap_or("127.0.0.1").to_string();
         tokio::task::spawn_blocking(move || {
-            fpm::serve(port.as_str()).expect("http service error");
+            fpm::serve(bind.as_str(), port.as_str()).expect("http service error");
         })
         .await
         .expect("Thread spawn error");
@@ -222,7 +226,24 @@ fn app(authors: &'static str, version: &'static str) -> clap::App<'static, 'stat
         )
         .subcommand(
             clap::SubCommand::with_name("serve")
-                .arg(clap::Arg::with_name("port").required(false))
+                .arg(clap::Arg::with_name("port")
+                        .required_unless("positional_port")
+                        .required(false)
+                        .help("Specify the port to serve on")
+                )
+                .arg(clap::Arg::with_name("positional_port")
+                        .long("--port")
+                        .required_unless("bind")
+                        .takes_value(true)
+                        .required(false)
+                        .help("Specify the port to serve on")
+                )
+                .arg(clap::Arg::with_name("bind")
+                        .long("--bind")
+                        .takes_value(true)
+                        .required(false)
+                        .help("Specify the bind address to serve on")
+                )
                 .about("Create an http server and serves static files")
                 .version(env!("CARGO_PKG_VERSION")),
         )