Factor out bar so we can have 2 bars

src/bar.rs

@@ -0,0 +1,30 @@
+use std::io::Write;
+use std::process::{ChildStdin, Command, Stdio};
+
+pub struct Bar {
+    stdin: ChildStdin
+}
+
+impl Bar {
+    pub fn new(top: bool) -> Bar {
+        let mut bar = Command::new("lemonbar");
+        if !top {
+            bar.arg("-b");
+        }
+        let child = bar
+            .arg("-f")
+            .arg("Inconsolatazi4:size=12")
+            .arg("-f")
+            .arg("Ionicons:size=12")
+            .stdin(Stdio::piped())
+            .spawn()
+            .ok()
+            .expect("Failed to start lemonbar");
+
+        Bar { stdin: child.stdin.unwrap() }
+    }
+
+    pub fn send(&mut self, text: &str) {
+        writeln!(&mut self.stdin, "{}", text).ok();
+    }
+}

src/main.rs

@@ -3,15 +3,14 @@ mod netspeed;
 mod comm;
 mod config;
 mod external;
+mod bar;
 
 use comm::{Channel, Message};
 use config::Config;
-use std::io::Write;
 use std::collections::HashMap;
 use std::sync::Arc;
 use std::sync::mpsc;
 use std::thread;
-use std::process;
 
 fn main() {
     let cfg = config::load("./panel.toml");
@@ -22,15 +21,8 @@ fn main() {
     make_thread(&tx, &cfg, sensors::sensors);
     make_thread(&tx, &cfg, netspeed::netspeed);
 
-    let bar = process::Command::new("lemonbar")
-        .arg("-f")
-        .arg("Inconsolatazi4:size=12")
-        .stdin(process::Stdio::piped())
-        .spawn()
-        .ok()
-        .expect("Failed to start lemonbar");
-
-    let mut output = bar.stdin.unwrap();
+    let mut topbar = bar::Bar::new(true);
+    let mut botbar = bar::Bar::new(false);
 
     let mut data = HashMap::new();
 
@@ -40,11 +32,12 @@ fn main() {
         match msg {
             Message { kind, text } => data.insert(kind, text),
         };
-        writeln!(&mut output, "{}%{{r}}{} | {}",
+        topbar.send(&format!("{}%{{r}}{} | {}",
             data.get("title").unwrap_or(&empty),
             data.get("netspeed").unwrap_or(&empty),
             data.get("sensors").unwrap_or(&empty)
-        ).ok();
+        ));
+        botbar.send(&format!("{}", data.get("cmus").unwrap_or(&empty)));
     }
 }