add ability to disable items with a config file

src/config/mod.rs

@@ -29,11 +29,16 @@ pub struct AppConfig {
     /// List of the items for the bar
     pub items: Vec<Item>,
 
+    /// Optional list of item indices to disable.
+    /// Useful when defining additional config files which disable items defined in previous config
+    /// files.
+    #[serde(default)]
+    pub disable: Vec<usize>,
+
     /// Path to the socket to use for ipc. Useful when having multiple bars to separate their sockets.
     /// The CLI option takes precedence over this.
     #[serde(rename = "socket")]
     socket: Option<PathBuf>,
-    /// Runtime only cache for the resolved socket path.
 
     /// Runtime only cache for index to name item mappings
     #[serde(skip)]

src/main.rs

@@ -102,6 +102,11 @@ fn setup_i3_bar(config: &RcCell<AppConfig>) -> Result<(RcCell<Bar>, RcCell<Dispa
 
     // Iterate config and create bar items
     for (idx, item) in config.items.iter().enumerate() {
+        if config.disable.contains(&idx) {
+            log::info!("not creating item {idx} since it was disabled by config");
+            continue;
+        }
+
         let bar_item = item.to_bar_item();
 
         // all cheaply cloneable (smart pointers, senders, etc)