Enable fancy miette errors for the main binary

Seems there's not much dependency/binary size impact now, compared to when I
first made the KDL config.

Cargo.lock

@@ -2,15 +2,6 @@
 # It is not intended for manual editing.
 version = 3
 
-[[package]]
-name = "addr2line"
-version = "0.24.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dfbe277e56a376000877090da837660b4427aad530e3028d44e0bffe4f89a1c1"
-dependencies = [
- "gimli",
-]
-
 [[package]]
 name = "adler2"
 version = "2.0.0"
@@ -338,30 +329,6 @@ version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
 
-[[package]]
-name = "backtrace"
-version = "0.3.74"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
-dependencies = [
- "addr2line",
- "cfg-if",
- "libc",
- "miniz_oxide",
- "object",
- "rustc-demangle",
- "windows-targets 0.52.6",
-]
-
-[[package]]
-name = "backtrace-ext"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "537beee3be4a18fb023b570f80e3ae28003db9167a751266b259926e25539d50"
-dependencies = [
- "backtrace",
-]
-
 [[package]]
 name = "base64"
 version = "0.21.7"
@@ -1317,12 +1284,6 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
-[[package]]
-name = "gimli"
-version = "0.31.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f"
-
 [[package]]
 name = "gio"
 version = "0.20.7"
@@ -2167,8 +2128,6 @@ version = "5.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "59bb584eaeeab6bd0226ccf3509a69d7936d148cf3d036ad350abe35e8c6856e"
 dependencies = [
- "backtrace",
- "backtrace-ext",
  "is-terminal",
  "miette-derive",
  "once_cell",
@@ -2603,15 +2562,6 @@ dependencies = [
  "objc2-foundation",
 ]
 
-[[package]]
-name = "object"
-version = "0.36.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62948e14d923ea95ea2c7c86c71013138b66525b86bdc08d2dcc262bdb497b87"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "once_cell"
 version = "1.20.3"
@@ -3175,12 +3125,6 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
-[[package]]
-name = "rustc-demangle"
-version = "0.1.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
-
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"

niri-config/Cargo.toml

@@ -11,7 +11,7 @@ repository.workspace = true
 bitflags.workspace = true
 csscolorparser = "0.7.0"
 knuffel = "3.2.0"
-miette = "5.10.0"
+miette = { version = "5.10.0", features = ["fancy-no-backtrace"] }
 niri-ipc = { version = "25.1.0", path = "../niri-ipc" }
 regex = "1.11.1"
 smithay = { workspace = true, features = ["backend_libinput"] }
@@ -20,5 +20,4 @@ tracy-client.workspace = true
 
 [dev-dependencies]
 insta.workspace = true
-miette = { version = "5.10.0", features = ["fancy"] }
 pretty_assertions = "1.4.1"

niri-config/src/lib.rs

@@ -12,7 +12,7 @@ use bitflags::bitflags;
 use knuffel::errors::DecodeError;
 use knuffel::Decode as _;
 use layer_rule::LayerRule;
-use miette::{miette, Context, IntoDiagnostic, NarratableReportHandler};
+use miette::{miette, Context, IntoDiagnostic};
 use niri_ipc::{
     ColumnDisplay, ConfiguredMode, LayoutSwitchTarget, PositionChange, SizeChange, Transform,
     WorkspaceReferenceArg,
@@ -3509,10 +3509,6 @@ impl FromStr for Percent {
     }
 }
 
-pub fn set_miette_hook() -> Result<(), miette::InstallError> {
-    miette::set_hook(Box::new(|_| Box::new(NarratableReportHandler::new())))
-}
-
 #[cfg(test)]
 mod tests {
     use insta::{assert_debug_snapshot, assert_snapshot};
@@ -3523,8 +3519,6 @@ mod tests {
 
     #[track_caller]
     fn do_parse(text: &str) -> Config {
-        let _ = set_miette_hook();
-
         Config::parse("test.kdl", text)
             .map_err(miette::Report::new)
             .unwrap()

src/main.rs

@@ -90,9 +90,6 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         env::set_var("XDG_SESSION_TYPE", "wayland");
     }
 
-    // Set a better error printer for config loading.
-    niri_config::set_miette_hook().unwrap();
-
     // Handle subcommands.
     if let Some(subcommand) = cli.subcommand {
         match subcommand {