feat(backend): keep logs in daily rolling files

backend/Cargo.lock

@@ -307,6 +307,7 @@ dependencies = [
  "tower-http",
  "tower_governor",
  "tracing",
+ "tracing-appender",
  "tracing-subscriber",
  "utoipa",
  "utoipa-swagger-ui",
@@ -577,6 +578,15 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82b8f8f868b36967f9606790d1903570de9ceaf870a7bf9fbbd3016d636a2cb2"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-deque"
 version = "0.8.6"
@@ -3588,6 +3598,12 @@ version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
 
+[[package]]
+name = "symlink"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7973cce6668464ea31f176d85b13c7ab3bba2cb3b77a2ed26abd7801688010a"
+
 [[package]]
 name = "syn"
 version = "2.0.117"
@@ -3900,6 +3916,19 @@ dependencies = [
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-appender"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "050686193eb999b4bb3bc2acfa891a13da00f79734704c4b8b4ef1a10b368a3c"
+dependencies = [
+ "crossbeam-channel",
+ "symlink",
+ "thiserror 2.0.18",
+ "time",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "tracing-attributes"
 version = "0.1.31"

backend/Cargo.toml

@@ -26,6 +26,7 @@ tower_governor = { version = "0.8.0", default-features = false, features = ["axu
 utoipa = { version = "5.5.0", features = ["axum_extras", "chrono"] }
 utoipa-swagger-ui = { version = "9.0.2", features = ["axum"] }
 image = "0.25.10"
+tracing-appender = "0.2.5"
 
 [dev-dependencies]
 axum-test = "20.0.0"

backend/src/main.rs

@@ -44,12 +44,20 @@ const BODY_LIMIT: usize = 1000 * 1000 * 1000 * 5;
 
 #[tokio::main]
 async fn main() -> Result<()> {
+    let file_appender = tracing_appender::rolling::daily("logs", "loft.log");
+    let (non_blocking, _guard) = tracing_appender::non_blocking(file_appender);
+
     tracing_subscriber::registry()
         .with(
             tracing_subscriber::EnvFilter::try_from_default_env().unwrap_or_else(|_| {
                 format!("{}=info,tower_http=debug", env!("CARGO_CRATE_NAME")).into()
             }),
         )
+        .with(
+            tracing_subscriber::fmt::layer()
+                .with_ansi(false)
+                .with_writer(non_blocking),
+        )
         .with(tracing_subscriber::fmt::layer())
         .init();