chore: introduce tracing (#375)

* chore: add dependency

* chore: update `Cargo.lock`

* fix(cli): printing span events when verbose flag in enabled

* stamp(sb_module_loader): apply tracing instrument

Author: nyannyacha

Cargo.lock

@@ -79,6 +79,7 @@ glob = "0.3.1"
 httparse = "1.8"
 http = "0.2"
 faster-hex = "0.9.0"
+tracing = "0.1"
 
 # DEBUG
 # [patch.crates-io]

Cargo.toml

@@ -39,21 +39,27 @@ fn main() -> Result<(), anyhow::Error> {
     let local = tokio::task::LocalSet::new();
     let res: Result<(), Error> = local.block_on(&runtime, async {
         let matches = get_cli().get_matches();
+        let verbose = matches.get_flag("verbose");
 
         if !matches.get_flag("quiet") {
             #[cfg(feature = "tracing")]
             {
+                use tracing_subscriber::fmt::format::FmtSpan;
                 use tracing_subscriber::EnvFilter;
 
                 tracing_subscriber::fmt()
                     .with_env_filter(EnvFilter::from_default_env())
                     .with_thread_names(true)
+                    .with_span_events(if verbose {
+                        FmtSpan::FULL
+                    } else {
+                        FmtSpan::NONE
+                    })
                     .init()
             }
 
             #[cfg(not(feature = "tracing"))]
             {
-                let verbose = matches.get_flag("verbose");
                 let include_source = matches.get_flag("log-source");
                 logger::init(verbose, include_source);
             }

crates/cli/src/main.rs

@@ -25,6 +25,7 @@ once_cell.workspace = true
 deno_tls.workspace = true
 monch.workspace = true
 base64.workspace = true
+tracing.workspace = true
 sb_core = { version = "0.1.0", path = "../sb_core" }
 sb_node = { version = "0.1.0", path = "../node" }
 sb_npm = { version = "0.1.0", path = "../npm" }

crates/sb_module_loader/Cargo.toml

@@ -14,6 +14,7 @@ use deno_core::{ModuleSpecifier, RequestedModuleType};
 use deno_semver::npm::NpmPackageReqReference;
 use eszip::deno_graph;
 use std::sync::Arc;
+use tracing::instrument;
 
 use crate::node::cli_node_resolver::CliNodeResolver;
 use crate::util::arc_u8_to_arc_str;
@@ -33,6 +34,7 @@ pub struct EmbeddedModuleLoader {
 }
 
 impl ModuleLoader for EmbeddedModuleLoader {
+    #[instrument(level = "debug", skip(self))]
     fn resolve(
         &self,
         specifier: &str,
@@ -96,6 +98,7 @@ impl ModuleLoader for EmbeddedModuleLoader {
         Ok(specifier)
     }
 
+    #[instrument(level = "debug", skip_all, fields(specifier = original_specifier.as_str()))]
     fn load(
         &self,
         original_specifier: &ModuleSpecifier,