refactor(telemetry): make bunyan as a feature

Cargo.lock

@@ -1754,7 +1754,6 @@ dependencies = [
  "tracing",
  "tracing-appender",
  "tracing-bunyan-formatter",
- "tracing-log 0.2.0",
  "tracing-subscriber",
  "url",
 ]

Cargo.toml

@@ -9,7 +9,7 @@ edition = "2024"
 async-trait = "0.1"
 color-eyre = "0.6"
 dotenv = "0.15"
-futures = "0.3.31"
+futures = "0.3"
 infer = "0.19"
 rand = "0.9"
 regex = "1.11"
@@ -26,11 +26,13 @@ tokio = { version = "1", features = [
 ] }
 tracing = "0.1"
 tracing-appender = "0.2"
-tracing-bunyan-formatter = { version = "0.3", default-features = false }
-tracing-log = "0.2.0"
+tracing-bunyan-formatter = { version = "0.3", default-features = false, optional = true }
 tracing-subscriber = { version = "0.3", features = ["registry", "env-filter"] }
 url = "2.5"
 
+[features]
+bunyan = ["tracing-bunyan-formatter"]
+
 [lints.clippy]
 pedantic = "warn"
 nursery = "warn"

src/telemetry.rs

@@ -1,14 +1,31 @@
+#[cfg(feature = "bunyan")]
 use tracing_bunyan_formatter::{BunyanFormattingLayer, JsonStorageLayer};
 use tracing_subscriber::{EnvFilter, layer::SubscriberExt, util::SubscriberInitExt};
 
 /// Initialise tracing with bunyan-style JSON output.
+#[cfg(feature = "bunyan")]
 pub fn setup_logger() {
-    let env_filter = EnvFilter::try_from_default_env().unwrap_or_else(|_| "info".into());
+    let env_filter = create_env_filter();
     let formatter = BunyanFormattingLayer::new("tg-relay-rs".into(), std::io::stdout);
 
     tracing_subscriber::registry()
         .with(env_filter)
-        .with(JsonStorageLayer)
         .with(formatter)
-        .init();
+        .with(JsonStorageLayer)
+        .init()
+}
+
+#[cfg(not(feature = "bunyan"))]
+pub fn setup_logger() {
+    let env_filter = create_env_filter();
+    let formatter = tracing_subscriber::fmt::Layer::default();
+
+    tracing_subscriber::registry()
+        .with(env_filter)
+        .with(formatter)
+        .init()
+}
+
+fn create_env_filter() -> EnvFilter {
+    EnvFilter::try_from_default_env().unwrap_or_else(|_| "info".into())
 }