feat(cmd_duration): make notify feature optional (compat with nix darwin) (#3855)

Cargo.toml

@@ -30,9 +30,10 @@ The minimal, blazing-fast, and infinitely customizable prompt for any shell! ☄
 """
 
 [features]
-default = ["battery"]
+default = ["battery", "notify"]
 battery = ["starship-battery"]
 config-schema = ["schemars"]
+notify = ["notify-rust"]
 
 [dependencies]
 ansi_term = "0.12.1"
@@ -47,7 +48,9 @@ git2 = { version = "0.14.2", default-features = false }
 indexmap = { version = "1.8.1", features = ["serde"] }
 local_ipaddress = "0.1.3"
 log = { version = "0.4.16", features = ["std"] }
-notify-rust = "4.5.8"
+# nofity-rust is optional (on by default) because the crate doesn't currently build for darwin with nix
+# see: https://github.com/NixOS/nixpkgs/issues/160876
+notify-rust = { version = "4.5.8", optional = true }
 once_cell = "1.10.0"
 open = "2.1.1"
 os_info = "3.2.0"

src/modules/cmd_duration.rs

@@ -51,6 +51,16 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
     Some(undistract_me(module, &config, elapsed))
 }
 
+#[cfg(not(feature = "notify"))]
+fn undistract_me<'a, 'b>(
+    module: Module<'a>,
+    _config: &'b CmdDurationConfig,
+    _elapsed: u128,
+) -> Module<'a> {
+    module
+}
+
+#[cfg(feature = "notify")]
 fn undistract_me<'a, 'b>(
     module: Module<'a>,
     config: &'b CmdDurationConfig,