Add "discovery" compat layer to "connect"

Author: Johannesd3

Cargo.lock

@@ -29,3 +29,10 @@ version = "0.2.0"
 [dependencies.librespot-protocol]
 path = "../protocol"
 version = "0.2.0"
+
+[dependencies.librespot-discovery]
+path = "../discovery"
+version = "0.2.0"
+
+[features]
+with-dns-sd = ["librespot-discovery/with-dns-sd"]

connect/Cargo.toml

@@ -0,0 +1,31 @@
+use std::io;
+use std::pin::Pin;
+use std::task::{Context, Poll};
+
+use futures_util::Stream;
+use librespot_core::authentication::Credentials;
+use librespot_core::config::ConnectConfig;
+
+pub struct DiscoveryStream(librespot_discovery::Discovery);
+
+impl Stream for DiscoveryStream {
+    type Item = Credentials;
+
+    fn poll_next(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
+        Pin::new(&mut self.0).poll_next(cx)
+    }
+}
+
+pub fn discovery(
+    config: ConnectConfig,
+    device_id: String,
+    port: u16,
+) -> io::Result<DiscoveryStream> {
+    librespot_discovery::Discovery::builder(device_id)
+        .device_type(config.device_type)
+        .port(port)
+        .name(config.name)
+        .launch()
+        .map(DiscoveryStream)
+        .map_err(|e| io::Error::new(io::ErrorKind::Other, e))
+}

connect/src/discovery.rs

@@ -6,4 +6,9 @@ use librespot_playback as playback;
 use librespot_protocol as protocol;
 
 pub mod context;
+#[deprecated(
+    since = "0.2.1",
+    note = "Please use the crate `librespot_discovery` instead."
+)]
+pub mod discovery;
 pub mod spirc;