From e0e063f6783e322626ecad37b804f733a6260f9a Mon Sep 17 00:00:00 2001
From: Tyr Chen <tyr.chen@gmail.com>
Date: Sun, 7 Apr 2024 11:54:30 -0700
Subject: [PATCH] feature: introduce tracing & tracing-subscriber

---
 Cargo.lock                     | 978 +++++++++++++++++++++++++++++++++
 Cargo.toml                     |   9 +-
 examples/axum_tracing.rs       |  61 ++
 src/main.rs => examples/err.rs |  28 +-
 src/error.rs                   |  26 -
 src/lib.rs                     |   4 +-
 test.rest                      |   3 +
 7 files changed, 1078 insertions(+), 31 deletions(-)
 create mode 100644 examples/axum_tracing.rs
 rename src/main.rs => examples/err.rs (62%)
 delete mode 100644 src/error.rs
 create mode 100644 test.rest

diff --git a/Cargo.lock b/Cargo.lock
index f592bbc..189bf65 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,20 +2,367 @@
 # It is not intended for manual editing.
 version = 3
 
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+checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
+
+[[package]]
+name = "rustversion"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "80af6f9131f277a45a3fba6ce8e2258037bb0477a67e610d3c1fe046ab31de47"
+
 [[package]]
 name = "ryu"
 version = "1.0.17"
@@ -79,6 +638,62 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_path_to_error"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af99884400da37c88f5e9146b7f1fd0fbcae8f6eec4e9da38b67d05486f814a6"
+dependencies = [
+ "itoa",
+ "serde",
+]
+
+[[package]]
+name = "serde_urlencoded"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "sharded-slab"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f40ca3c46823713e0d4209592e8d6e826aa57e928f09752619fc696c499637f6"
+dependencies = [
+ "lazy_static",
+]
+
+[[package]]
+name = "slab"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "smallvec"
+version = "1.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
+
+[[package]]
+name = "socket2"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05ffd9c0a93b7543e062e759284fcf5f5e3b098501104bfbdde4d404db792871"
+dependencies = [
+ "libc",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "syn"
 version = "2.0.58"
@@ -90,6 +705,18 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "sync_wrapper"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2047c6ded9c721764247e62cd3b03c09ffc529b2ba5b10ec482ae507a4a70160"
+
+[[package]]
+name = "sync_wrapper"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "384595c11a4e2969895cad5a8c4029115f5ab956a9e5ef4de79d11a426e5f20c"
+
 [[package]]
 name = "thiserror"
 version = "1.0.58"
@@ -110,8 +737,359 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "thread_local"
+version = "1.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b9ef9bad013ada3808854ceac7b46812a6465ba368859a37e2100283d2d719c"
+dependencies = [
+ "cfg-if",
+ "once_cell",
+]
+
+[[package]]
+name = "time"
+version = "0.3.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8248b6521bb14bc45b4067159b9b6ad792e2d6d754d6c41fb50e29fefe38749"
+dependencies = [
+ "deranged",
+ "itoa",
+ "num-conv",
+ "powerfmt",
+ "serde",
+ "time-core",
+ "time-macros",
+]
+
+[[package]]
+name = "time-core"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
+
+[[package]]
+name = "time-macros"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ba3a3ef41e6672a2f0f001392bb5dcd3ff0a9992d618ca761a11c3121547774"
+dependencies = [
+ "num-conv",
+ "time-core",
+]
+
+[[package]]
+name = "tokio"
+version = "1.37.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1adbebffeca75fcfd058afa480fb6c0b81e165a0323f9c9d39c9697e37c46787"
+dependencies = [
+ "backtrace",
+ "bytes",
+ "libc",
+ "mio",
+ "num_cpus",
+ "pin-project-lite",
+ "socket2",
+ "tokio-macros",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "tokio-macros"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b8a1e28f2deaa14e508979454cb3a223b10b938b45af148bc0986de36f1923b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "tokio-util"
+version = "0.7.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5419f34732d9eb6ee4c3578b7989078579b7f039cbbb9ca2c4da015749371e15"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+ "tracing",
+]
+
+[[package]]
+name = "tower"
+version = "0.4.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8fa9be0de6cf49e536ce1851f987bd21a43b771b09473c3549a6c853db37c1c"
+dependencies = [
+ "futures-core",
+ "futures-util",
+ "pin-project",
+ "pin-project-lite",
+ "tokio",
+ "tower-layer",
+ "tower-service",
+ "tracing",
+]
+
+[[package]]
+name = "tower-layer"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c20c8dbed6283a09604c3e69b4b7eeb54e298b8a600d4d5ecb5ad39de609f1d0"
+
+[[package]]
+name = "tower-service"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
+
+[[package]]
+name = "tracing"
+version = "0.1.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
+dependencies = [
+ "log",
+ "pin-project-lite",
+ "tracing-attributes",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-appender"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3566e8ce28cc0a3fe42519fc80e6b4c943cc4c8cef275620eb8dac2d3d4e06cf"
+dependencies = [
+ "crossbeam-channel",
+ "thiserror",
+ "time",
+ "tracing-subscriber",
+]
+
+[[package]]
+name = "tracing-attributes"
+version = "0.1.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
+dependencies = [
+ "once_cell",
+ "valuable",
+]
+
+[[package]]
+name = "tracing-log"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee855f1f400bd0e5c02d150ae5de3840039a3f54b025156404e34c23c03f47c3"
+dependencies = [
+ "log",
+ "once_cell",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-subscriber"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad0f048c97dbd9faa9b7df56362b8ebcaa52adb06b498c050d2f4e32f90a7a8b"
+dependencies = [
+ "matchers",
+ "nu-ansi-term",
+ "once_cell",
+ "regex",
+ "sharded-slab",
+ "smallvec",
+ "thread_local",
+ "tracing",
+ "tracing-core",
+ "tracing-log",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
+
+[[package]]
+name = "valuable"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
+
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets 0.48.5",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.52.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
+dependencies = [
+ "windows-targets 0.52.4",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.5",
+ "windows_aarch64_msvc 0.48.5",
+ "windows_i686_gnu 0.48.5",
+ "windows_i686_msvc 0.48.5",
+ "windows_x86_64_gnu 0.48.5",
+ "windows_x86_64_gnullvm 0.48.5",
+ "windows_x86_64_msvc 0.48.5",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7dd37b7e5ab9018759f893a1952c9420d060016fc19a472b4bb20d1bdd694d1b"
+dependencies = [
+ "windows_aarch64_gnullvm 0.52.4",
+ "windows_aarch64_msvc 0.52.4",
+ "windows_i686_gnu 0.52.4",
+ "windows_i686_msvc 0.52.4",
+ "windows_x86_64_gnu 0.52.4",
+ "windows_x86_64_gnullvm 0.52.4",
+ "windows_x86_64_msvc 0.52.4",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcf46cf4c365c6f2d1cc93ce535f2c8b244591df96ceee75d8e83deb70a9cac9"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da9f259dd3bcf6990b55bffd094c4f7235817ba4ceebde8e6d11cd0c5633b675"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b474d8268f99e0995f25b9f095bc7434632601028cf86590aea5c8a5cb7801d3"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1515e9a29e5bed743cb4415a9ecf5dfca648ce85ee42e15873c3cd8610ff8e02"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5eee091590e89cc02ad514ffe3ead9eb6b660aedca2183455434b93546371a03"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77ca79f2451b49fa9e2af39f0747fe999fcda4f5e241b2898624dca97a1f2177"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.52.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32b752e52a2da0ddfbdbcc6fceadfeede4c939ed16d13e648833a61dfb611ed8"
diff --git a/Cargo.toml b/Cargo.toml
index 3cc2503..5e1539c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,6 +7,13 @@ edition = "2021"
 
 [dependencies]
 anyhow = "1.0.81"
+thiserror = "1.0.58"
+tracing = "0.1.40"
+tracing-appender = "0.2.3"
+tracing-subscriber = { version = "0.3.18", features = ["env-filter"] }
+
+[dev-dependencies]
+axum = { version = "0.7.5", features = ["http2", "query", "tracing"] }
 serde = { version = "1.0.197", features = ["derive"] }
 serde_json = "1.0.115"
-thiserror = "1.0.58"
+tokio = { version = "1.37.0", features = ["rt", "rt-multi-thread", "macros"] }
diff --git a/examples/axum_tracing.rs b/examples/axum_tracing.rs
new file mode 100644
index 0000000..f92692a
--- /dev/null
+++ b/examples/axum_tracing.rs
@@ -0,0 +1,61 @@
+use std::time::Duration;
+
+use axum::{routing::get, Router};
+use tokio::{
+    net::TcpListener,
+    time::{sleep, Instant},
+};
+use tracing::{debug, info, instrument, level_filters::LevelFilter, warn};
+use tracing_subscriber::{
+    fmt::{self, format::FmtSpan},
+    layer::SubscriberExt,
+    util::SubscriberInitExt,
+    Layer,
+};
+
+#[tokio::main]
+async fn main() -> anyhow::Result<()> {
+    let file_appender = tracing_appender::rolling::daily("/tmp/logs", "ecosystem.log");
+    let (non_blocking, _guard) = tracing_appender::non_blocking(file_appender);
+
+    let console = fmt::Layer::new()
+        .with_span_events(FmtSpan::CLOSE)
+        .pretty()
+        .with_filter(LevelFilter::DEBUG);
+
+    let file = fmt::Layer::new()
+        .with_writer(non_blocking)
+        .pretty()
+        .with_filter(LevelFilter::INFO);
+
+    tracing_subscriber::registry()
+        .with(console)
+        .with(file)
+        .init();
+
+    let addr = "0.0.0.0:8080";
+    let app = Router::new().route("/", get(index_handler));
+
+    let listener = TcpListener::bind(addr).await?;
+    info!("Starting server on {}", addr);
+    axum::serve(listener, app.into_make_service()).await?;
+    Ok(())
+}
+
+#[instrument]
+async fn index_handler() -> &'static str {
+    debug!("index handler started");
+    sleep(Duration::from_millis(10)).await;
+    let ret = long_task().await;
+    info!(http.status = 200, "index handler completed");
+    ret
+}
+
+#[instrument]
+async fn long_task() -> &'static str {
+    let start = Instant::now();
+    sleep(Duration::from_millis(112)).await;
+    let elapsed = start.elapsed().as_millis() as u64;
+    warn!(app.task_duration = elapsed, "task takes too long");
+    "Hello, World!"
+}
diff --git a/src/main.rs b/examples/err.rs
similarity index 62%
rename from src/main.rs
rename to examples/err.rs
index e4790a9..e170a03 100644
--- a/src/main.rs
+++ b/examples/err.rs
@@ -1,7 +1,33 @@
 use anyhow::Context;
-use ecosystem::MyError;
 use std::{fs, mem::size_of, num::ParseIntError};
 
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum MyError {
+    #[error("I/O error: {0}")]
+    Io(#[from] std::io::Error),
+    #[error("Parse error: {0}")]
+    Parse(#[from] std::num::ParseIntError),
+    #[error("Serialize json error: {0}")]
+    Serialize(#[from] serde_json::Error),
+
+    #[error("Error: {0:?}")]
+    BigError(Box<BigError>),
+
+    #[error("Custom error: {0}")]
+    Custom(String),
+}
+
+#[allow(unused)]
+#[derive(Debug)]
+pub struct BigError {
+    a: String,
+    b: Vec<String>,
+    c: [u8; 64],
+    d: u64,
+}
+
 fn main() -> Result<(), anyhow::Error> {
     println!("size of anyhow::Error is {}", size_of::<anyhow::Error>());
     println!("size of std::io::Error is {}", size_of::<std::io::Error>());
diff --git a/src/error.rs b/src/error.rs
deleted file mode 100644
index f09ea77..0000000
--- a/src/error.rs
+++ /dev/null
@@ -1,26 +0,0 @@
-use thiserror::Error;
-
-#[derive(Error, Debug)]
-pub enum MyError {
-    #[error("I/O error: {0}")]
-    Io(#[from] std::io::Error),
-    #[error("Parse error: {0}")]
-    Parse(#[from] std::num::ParseIntError),
-    #[error("Serialize json error: {0}")]
-    Serialize(#[from] serde_json::Error),
-
-    #[error("Error: {0:?}")]
-    BigError(Box<BigError>),
-
-    #[error("Custom error: {0}")]
-    Custom(String),
-}
-
-#[allow(unused)]
-#[derive(Debug)]
-pub struct BigError {
-    a: String,
-    b: Vec<String>,
-    c: [u8; 64],
-    d: u64,
-}
diff --git a/src/lib.rs b/src/lib.rs
index bee01fa..4bd8276 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1 @@
-mod error;
-
-pub use error::MyError;
+// empty file
diff --git a/test.rest b/test.rest
new file mode 100644
index 0000000..4796cf2
--- /dev/null
+++ b/test.rest
@@ -0,0 +1,3 @@
+### index handler
+
+GET http://localhost:8080/