refactor: migrate to built-in tracing support of clap-verbosity-flag

Cargo.toml

@@ -8,13 +8,12 @@ publish = false
 
 [dependencies]
 clap = { version = "4.5.4", features = ["derive", "wrap_help"] }
-clap-verbosity-flag = "3.0.0"
+clap-verbosity-flag = { version = "3.0.0", default-features = false, features = ["tracing"] }
 color-eyre = "0.6.3"
 crossterm = { version = "0.28.0", features = ["event-stream"] }
 futures = "0.3.30"
 htmlize = { version = "1.0.5", features = ["unescape"] }
 json_dotpath = "1.1.0"
-log = "0.4.21"
 nix = { version = "0.29.0", features = ["process", "signal"] }
 once_cell = "1.19.0"
 opentelemetry = "0.23"

src/trace.rs

@@ -4,7 +4,7 @@ use opentelemetry::KeyValue;
 use opentelemetry_sdk::Resource;
 use tracing_appender::non_blocking::WorkerGuard;
 use tracing_error::ErrorLayer;
-use tracing_subscriber::{filter::Directive, layer::SubscriberExt};
+use tracing_subscriber::layer::SubscriberExt;
 use tracing_subscriber::{prelude::*, EnvFilter};
 
 use crate::args::Args;
@@ -56,28 +56,6 @@ fn env_filter(verbosity: &Verbosity) -> EnvFilter {
     // or use `RUST_LOG=target[span{field=value}]=level` for fine-grained verbosity control.
     // See https://docs.rs/tracing-subscriber/latest/tracing_subscriber/filter/struct.EnvFilter.html
     tracing_subscriber::EnvFilter::builder()
-        .with_default_directive(
-            LogLevel::from(&verbosity.log_level().unwrap_or(log::Level::Error)).into_directive(),
-        )
+        .with_default_directive(verbosity.tracing_level_filter().into())
         .from_env_lossy()
 }
-
-pub(crate) struct LogLevel(tracing::Level);
-
-impl From<&log::Level> for LogLevel {
-    fn from(log_level: &log::Level) -> Self {
-        LogLevel(match log_level {
-            log::Level::Error => tracing::Level::ERROR,
-            log::Level::Warn => tracing::Level::WARN,
-            log::Level::Info => tracing::Level::INFO,
-            log::Level::Debug => tracing::Level::DEBUG,
-            log::Level::Trace => tracing::Level::TRACE,
-        })
-    }
-}
-
-impl LogLevel {
-    pub(crate) fn into_directive(self) -> Directive {
-        self.0.into()
-    }
-}