Configurable log level

Author: cry-inc

src/config.rs

@@ -1,4 +1,5 @@
 use clap::Parser;
+use tracing::Level;
 
 #[derive(Parser, Clone)]
 #[command(version, about, long_about = None)]
@@ -43,6 +44,10 @@ pub struct Configuration {
     /// Use empty string to disable (not recommended).
     #[arg(short = 'a', long, env)]
     pub http_server_password: String,
+
+    /// Log level (trace, debug, info, warn, error)
+    #[arg(short = 'e', long, env, default_value = "INFO")]
+    pub log_level: Level,
 }
 
 impl Configuration {

src/main.rs

@@ -16,7 +16,7 @@ use anyhow::{Context, Result};
 use config::Configuration;
 use std::sync::{Arc, Mutex};
 use tokio::sync::mpsc::channel;
-use tracing::{info, Level};
+use tracing::info;
 
 #[tokio::main]
 async fn main() -> Result<()> {
@@ -27,14 +27,15 @@ async fn main() -> Result<()> {
     // Set up basic logging to stdout
     let subscriber = tracing_subscriber::fmt()
         .compact()
-        .with_max_level(Level::INFO)
+        .with_max_level(config.log_level)
         .with_target(false)
         .with_ansi(false)
         .finish();
     tracing::subscriber::set_global_default(subscriber)
         .expect("Failed to set up default tracing subscriber");
 
     info!("DMARC Report Analyzer");
+    info!("Log Level: {}", config.log_level);
 
     // Prepare shared application state
     let state = Arc::new(Mutex::new(AppState::default()));