add persist-volume to ConnectConfig

connect/src/spirc.rs

@@ -25,6 +25,7 @@ pub struct SpircTask {
     player: Player,
     mixer: Box<Mixer>,
     linear_volume: bool,
+    persist_volume: Option<String>,
 
     sequence: SeqGenerator<u32>,
 
@@ -243,6 +244,7 @@ impl Spirc {
             player: player,
             mixer: mixer,
             linear_volume: linear_volume,
+            persist_volume: persist_volume,
 
             sequence: SeqGenerator::new(1),
 

core/src/config.rs

@@ -83,4 +83,5 @@ pub struct ConnectConfig {
     pub device_type: DeviceType,
     pub volume: i32,
     pub linear_volume: bool,
+    pub persist_volume: Option<String>,
 }

src/main.rs

@@ -305,6 +305,7 @@ fn setup(args: &[String]) -> Setup {
             device_type: device_type,
             volume: initial_volume,
             linear_volume: matches.opt_present("linear-volume"),
+            persist_volume: persist_volume,
         }
     };