feat(logging): centralize logging setup in teepot crate

- Added a new logging module in `teepot` crate.
- Removed redundant logging setup code from individual projects.
- Updated dependencies and references for logging setup.

Signed-off-by: Harald Hoyer <harald@matterlabs.dev>

bin/vault-admin/src/main.rs

@@ -15,12 +15,11 @@ use teepot::json::http::{
     SignRequest, SignRequestData, SignResponse, VaultCommandRequest, VaultCommands,
     VaultCommandsResponse, DIGEST_URL,
 };
+use teepot::log::{setup_logging, LogLevelParser};
 use teepot::server::signatures::verify_sig;
 use teepot::sgx::sign::Signature;
+use tracing::level_filters::LevelFilter;
 use tracing::{error, info};
-use tracing_log::LogTracer;
-use tracing_subscriber::Registry;
-use tracing_subscriber::{fmt, prelude::*, EnvFilter};
 
 #[derive(Args, Debug)]
 struct SendArgs {
@@ -101,18 +100,18 @@ enum SubCommands {
 struct Arguments {
     #[clap(subcommand)]
     cmd: SubCommands,
+    /// Log level for the log output.
+    /// Valid values are: `off`, `error`, `warn`, `info`, `debug`, `trace`
+    #[clap(long, default_value_t = LevelFilter::WARN, value_parser = LogLevelParser)]
+    pub log_level: LevelFilter,
 }
 
 #[actix_web::main]
 async fn main() -> Result<()> {
-    LogTracer::init().context("Failed to set logger")?;
-
-    let subscriber = Registry::default()
-        .with(EnvFilter::from_default_env())
-        .with(fmt::layer().with_writer(std::io::stderr));
-    tracing::subscriber::set_global_default(subscriber).unwrap();
-
     let args = Arguments::parse();
+
+    setup_logging(&args.log_level)?;
+
     info!("Quote verified! Connection secure!");
 
     match args.cmd {

bin/verify-era-proof-attestation/src/args.rs

@@ -4,6 +4,7 @@
 use anyhow::{anyhow, Result};
 use clap::{ArgGroup, Args, Parser};
 use std::time::Duration;
+use teepot::log::LogLevelParser;
 use teepot::sgx::{parse_tcb_levels, EnumSet, TcbLevel};
 use tracing_subscriber::filter::LevelFilter;
 use url::Url;
@@ -18,6 +19,8 @@ use zksync_types::L2ChainId;
         .args(&["batch_range", "continuous"]),
 ))]
 pub struct Arguments {
+    /// Log level for the log output.
+    /// Valid values are: `off`, `error`, `warn`, `info`, `debug`, `trace`
     #[clap(long, default_value_t = LevelFilter::WARN, value_parser = LogLevelParser)]
     pub log_level: LevelFilter,
     /// The batch number or range of batch numbers to verify the attestation and signature (e.g.,
@@ -90,34 +93,3 @@ fn parse_duration(s: &str) -> Result<Duration> {
     let millis = s.parse()?;
     Ok(Duration::from_millis(millis))
 }
-
-#[derive(Clone)]
-struct LogLevelParser;
-
-impl clap::builder::TypedValueParser for LogLevelParser {
-    type Value = LevelFilter;
-
-    fn parse_ref(
-        &self,
-        cmd: &clap::Command,
-        arg: Option<&clap::Arg>,
-        value: &std::ffi::OsStr,
-    ) -> Result<Self::Value, clap::Error> {
-        clap::builder::TypedValueParser::parse(self, cmd, arg, value.to_owned())
-    }
-
-    fn parse(
-        &self,
-        cmd: &clap::Command,
-        arg: Option<&clap::Arg>,
-        value: std::ffi::OsString,
-    ) -> std::result::Result<Self::Value, clap::Error> {
-        use std::str::FromStr;
-        let p = clap::builder::PossibleValuesParser::new([
-            "off", "error", "warn", "info", "debug", "trace",
-        ]);
-        let v = p.parse(cmd, arg, value)?;
-
-        Ok(LevelFilter::from_str(&v).unwrap())
-    }
-}

bin/verify-era-proof-attestation/src/main.rs

@@ -8,23 +8,21 @@ mod client;
 mod proof;
 mod verification;
 
-use anyhow::{Context, Result};
+use crate::verification::{
+    log_quote_verification_summary, verify_attestation_quote, verify_batch_proof,
+};
+use anyhow::Result;
 use args::{Arguments, AttestationPolicyArgs};
 use clap::Parser;
 use client::MainNodeClient;
 use proof::get_proofs;
 use reqwest::Client;
+use teepot::log::setup_logging;
 use tokio::{signal, sync::watch};
 use tracing::{debug, error, info, trace, warn};
-use tracing_log::LogTracer;
-use tracing_subscriber::{filter::LevelFilter, fmt, prelude::*, EnvFilter, Registry};
 use url::Url;
 use zksync_basic_types::L1BatchNumber;
 
-use crate::verification::{
-    log_quote_verification_summary, verify_attestation_quote, verify_batch_proof,
-};
-
 #[tokio::main]
 async fn main() -> Result<()> {
     let args = Arguments::parse();
@@ -45,26 +43,6 @@ async fn main() -> Result<()> {
     Ok(())
 }
 
-fn setup_logging(log_level: &LevelFilter) -> Result<()> {
-    LogTracer::init().context("Failed to set logger")?;
-    let filter = EnvFilter::builder()
-        .try_from_env()
-        .unwrap_or(match *log_level {
-            LevelFilter::OFF => EnvFilter::new("off"),
-            _ => EnvFilter::new(format!(
-                "warn,{crate_name}={log_level},teepot={log_level}",
-                crate_name = env!("CARGO_CRATE_NAME"),
-                log_level = log_level
-            )),
-        });
-    let subscriber = Registry::default()
-        .with(filter)
-        .with(fmt::layer().with_writer(std::io::stderr));
-    tracing::subscriber::set_global_default(subscriber)?;
-
-    Ok(())
-}
-
 fn validate_arguments(args: &Arguments) -> Result<()> {
     if args.attestation_policy.sgx_mrsigners.is_none()
         && args.attestation_policy.sgx_mrenclaves.is_none()