Fix a panic when --fingerprint was not provided, and rename it to --dev (#96)

README.md

@@ -31,7 +31,7 @@ Notable arguments:
 -   `--listen <ADDR>` Listen on this address, default: `[::]:4443`
 -   `--cert <CERT>` Use the certificate file at this path
 -   `--key <KEY>` Use the private key at this path
--   `--fingerprint` Listen via HTTPS as well, serving the `/fingerprint` of the self-signed certificate. (dev only)
+-   `--dev` Listen via HTTPS as well, serving the `/fingerprint` of the self-signed certificate. (dev only)
 
 This listens for WebTransport connections on `UDP https://localhost:4443` by default.
 You need a client to connect to that address, to both publish and consume media.

dev/relay

@@ -34,4 +34,4 @@ fi
 echo "Publish URL: https://quic.video/publish/?server=localhost:${PORT}"
 
 # Run the relay and forward any arguments
-cargo run --bin moq-relay -- --listen "$LISTEN" --cert "$CERT" --key "$KEY" --fingerprint $ARGS -- "$@"
+cargo run --bin moq-relay -- --listen "$LISTEN" --cert "$CERT" --key "$KEY" --dev $ARGS -- "$@"

moq-relay/src/config.rs

@@ -26,7 +26,7 @@ pub struct Config {
 
 	/// Listen on HTTPS and serve /fingerprint, for self-signed certificates
 	#[arg(long, action)]
-	pub fingerprint: bool,
+	pub dev: bool,
 
 	/// Optional: Use the moq-api via HTTP to store origin information.
 	#[arg(long)]

moq-relay/src/main.rs

@@ -35,13 +35,17 @@ async fn main() -> anyhow::Result<()> {
 		.await
 		.context("failed to create server")?;
 
-	// Create the web server if the --fingerprint flag was set.
+	// Create the web server if the --dev flag was set.
 	// This is currently only useful in local development so it's not enabled by default.
-	let web = config.fingerprint.then(|| Web::new(config, tls));
+	if config.dev {
+		let web = Web::new(config, tls);
 
-	// Run all of the above
+		// Unfortunately we can't use preconditions because Tokio still executes the branch; just ignore the result
 		tokio::select! {
-		res = quic.serve() => res.context("failed to run server"),
-		res = web.unwrap().serve(), if web.is_some() => res.context("failed to run HTTP server"),
+			res = quic.serve() => res.context("failed to run quic server"),
+			res = web.serve() => res.context("failed to run web server"),
+		}
+	} else {
+		quic.serve().await.context("failed to run quic server")
 	}
 }