Add tracing and miette error infrastructure to wrsrvd

crates/wrsrvd/src/errors.rs

@@ -0,0 +1,16 @@
+use miette::Diagnostic;
+use thiserror::Error;
+
+#[derive(Debug, Error, Diagnostic)]
+pub enum WayRayError {
+    #[error("failed to initialize Winit backend")]
+    #[diagnostic(help("ensure a display server (X11 or Wayland) is running"))]
+    BackendInit(#[source] Box<dyn std::error::Error + Send + Sync>),
+
+    #[error("failed to initialize Wayland display")]
+    #[diagnostic(help("check that the XDG_RUNTIME_DIR environment variable is set"))]
+    DisplayInit(#[source] Box<dyn std::error::Error + Send + Sync>),
+
+    #[error("event loop error")]
+    EventLoop(#[source] Box<dyn std::error::Error + Send + Sync>),
+}

crates/wrsrvd/src/main.rs

@@ -1,3 +1,16 @@
-fn main() {
-    println!("wrsrvd compositor");
+mod errors;
+
+use miette::Result;
+use tracing::info;
+
+fn main() -> Result<()> {
+    tracing_subscriber::fmt()
+        .with_env_filter(
+            tracing_subscriber::EnvFilter::try_from_default_env()
+                .unwrap_or_else(|_| tracing_subscriber::EnvFilter::new("info")),
+        )
+        .init();
+
+    info!("wrsrvd starting");
+    Ok(())
 }