Add --version option discover tool

1 files changed, 14 insertions, 0 deletions

diff --git a/server/discover/src/main.rs b/server/discover/src/main.rs
index f546cd6c..0ed43927 100644
--- a/server/discover/src/main.rs
+++ b/server/discover/src/main.rs
@@ -17,6 +17,7 @@
 */
 #![feature(never_type)]
 use anyhow::Result;
+use clap::Parser;
 use http_body_util::Full;
 use hurrycurry_protocol::registry::Entry;
 use hyper::{
@@ -29,7 +30,20 @@ use mdns_sd::{ServiceDaemon, ServiceEvent};
 use std::{cmp::Reverse, collections::HashMap, net::SocketAddr, sync::Arc};
 use tokio::{net::TcpListener, spawn, sync::RwLock};
 
+#[derive(Parser)]
+struct Args {
+    /// Print version and exit
+    #[arg(short, long)]
+    version: bool,
+}
+
 fn main() -> Result<()> {
+    let args = Args::parse();
+    if args.version {
+        println!("{}", env!("CARGO_PKG_VERSION"));
+        return Ok(());
+    }
+
     env_logger::init_from_env("LOG");
     tokio::runtime::Builder::new_current_thread()
         .enable_all()