silence serenity info logs

Cargo.lock

@@ -1079,6 +1079,15 @@ version = "0.4.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13dc2df351e3202783a1fe0d44375f7295ffb4049267b0f3018346dc122a1d94"
 
+[[package]]
+name = "matchers"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d1525a2a28c7f4fa0fc98bb91ae755d1e2d1505079e05539e35bc876b5d65ae9"
+dependencies = [
+ "regex-automata",
+]
+
 [[package]]
 name = "matchit"
 version = "0.8.4"
@@ -2129,10 +2138,14 @@ version = "0.3.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2054a14f5307d601f88daf0553e1cbf472acc4f2c51afab632431cdcd72124d5"
 dependencies = [
+ "matchers",
  "nu-ansi-term",
+ "once_cell",
+ "regex-automata",
  "sharded-slab",
  "smallvec",
  "thread_local",
+ "tracing",
  "tracing-core",
  "tracing-log",
 ]

Cargo.toml

@@ -14,4 +14,4 @@ serenity = "0.12.4"
 tokio = { version = "1.44.2", features = ["full"] }
 tower = "0.5.2"
 tracing = "0.1.41"
-tracing-subscriber = "0.3.20"
+tracing-subscriber = { version = "0.3.20", features = ["env-filter"] }

src/setup.rs

@@ -1,6 +1,6 @@
 use dotenvy::Error;
-use tracing::{Level, error, info, subscriber, warn};
-use tracing_subscriber::FmtSubscriber;
+use tracing::{error, info, subscriber, warn};
+use tracing_subscriber::{EnvFilter, FmtSubscriber};
 
 pub fn dotenv_and_tracing() {
     let dotenv = match dotenvy::dotenv() {
@@ -10,16 +10,18 @@ pub fn dotenv_and_tracing() {
             false => DotenvStatus::Error(e),
         },
     };
-    let lvl = match std::env::var("RUST_LOG") {
-        Ok(s) => Level::try_from_str(&s),
+    let filter = match std::env::var("RUST_LOG") {
+        Ok(s) => EnvFilter::new(s),
         Err(e) => match e {
-            std::env::VarError::NotPresent => Level::INFO,
+            std::env::VarError::NotPresent => EnvFilter::new("info,serenity=warn"),
             std::env::VarError::NotUnicode(s) => panic!("{:?} is not a valid log level.", s),
         },
     };
-    let s = FmtSubscriber::builder().with_max_level(lvl).finish();
+    let s = FmtSubscriber::builder()
+        .with_env_filter(filter.clone())
+        .finish();
     subscriber::set_global_default(s).expect(SETGLOBAL_FAIL);
-    info!("tracing initialised ({}).", lvl);
+    info!("tracing initialised.");
     match dotenv {
         DotenvStatus::LoadedFine => info!(".env loaded successfully."),
         DotenvStatus::NotFound => warn!(".env not found; skipping..."),
@@ -33,19 +35,3 @@ enum DotenvStatus {
     NotFound,
     Error(Error),
 }
-
-trait StrToLevel {
-    fn try_from_str(value: &str) -> Level;
-}
-impl StrToLevel for Level {
-    fn try_from_str(value: &str) -> Level {
-        match value.to_lowercase().as_str() {
-            "error" => Level::ERROR,
-            "warn" => Level::WARN,
-            "info" => Level::INFO,
-            "debug" => Level::DEBUG,
-            "trace" => Level::TRACE,
-            _ => panic!("{value} is not a valid log level."),
-        }
-    }
-}