use fern instead of tracing

Cargo.toml

@@ -12,6 +12,6 @@ clap = { version = "4.5.4", features = ["derive"] }
 serde = { version = "1.0.197", features = ["derive"] }
 serde_derive = { version = "1.0.197" }
 num_cpus = "1.16.0"
-tracing = { version = "0.1.40", features = ["log"] }
-tracing-appender = { version = "0.2.3" }
-tracing-subscriber = { version = "0.3.18", features = ["fmt", "tracing-log"] }
+fern = {version = "0.6.2", features = ["colored"]}
+log = "0.4.21"
+humantime = "2.1.0"

src/config/args.rs

@@ -20,7 +20,7 @@ pub struct Args {
     )]
     log_level: Option<String>,
     #[arg(long)]
-    log_file: Option<PathBuf>,
+    log_file: Option<String>,
 }
 
 impl Default for Args {
@@ -59,7 +59,7 @@ impl Args {
         self.log_level.clone()
     }
 
-    pub fn get_log_file(&self) -> Option<PathBuf> {
+    pub fn get_log_file(&self) -> Option<String> {
         self.log_file.clone()
     }
 }

src/config/config.rs

@@ -20,7 +20,7 @@ pub struct Config {
     pub engine: Option<Engine>,
 
     pub log_level: Option<String>,
-    pub log_file: Option<PathBuf>
+    pub log_file: Option<String>
 }
 
 impl Default for Config {
@@ -32,7 +32,7 @@ impl Default for Config {
             engine: Some(Engine::default()),
 
             log_level: Some("info".to_string()),
-            log_file: Some(PathBuf::from("saltfish.log")),
+            log_file: Some("saltfish.log".to_string()),
         }
     }
 }

src/config/mod.rs

@@ -1,17 +1,16 @@
 mod config;
+use std::str::FromStr;
 mod args;
 mod engine;
 
+use crate::logging::logger_init;
+
 pub mod error;
 
 
-use std::str::FromStr;
-
-use crate::logger_update;
 
 use self::{args::Args, config::Config};
 use clap::Parser;
-use tracing::{debug, error, info, Level};
 
 
 pub fn get_config() -> Option<Config> {
@@ -20,8 +19,6 @@ pub fn get_config() -> Option<Config> {
             println!("{}", err);
             return Err(())
         }
-        error!("{}", err);
-        info!("continuing withouth commandline arguments");
         Ok(Args::default())
     });
 
@@ -30,7 +27,7 @@ pub fn get_config() -> Option<Config> {
         Ok(args) => {
             let config_path = args.get_config_path().unwrap_or_default();
             let config = Config::read(&config_path).merge_args(&args);
-            logger_update(&config.log_file.clone().unwrap(), Level::from_str(&config.log_level.clone().unwrap()).unwrap());
+            logger_init(config.log_file.clone().unwrap(), log::Level::from_str(&config.log_level.clone().unwrap()).unwrap()).unwrap();
             Some(config)
         }
     }

src/logging.rs

@@ -1,27 +1,18 @@
-use std::path::Path;
-
-use tracing::Level;
-use tracing_subscriber::fmt;
-
-pub fn logger_init() {
-    let subscriber = fmt()
-        .compact()
-        .with_max_level(Level::DEBUG)
-        .finish();
-    // tracing::subscriber::set_global_default(subscriber)
-    //     .expect("Failed to set global default subscriber");
+use std::time::SystemTime;
 
-}
-
-pub fn logger_update(file: &Path, level: Level) {
-    let file_appender = tracing_appender::rolling::never(file.parent().unwrap(), file.file_name().unwrap());
-    let (non_blocking, _guard) = tracing_appender::non_blocking(file_appender);
-    println!("dir: {:?} | file: {:?}", file.parent(), file.file_name());
-    let subscriber = fmt()
-        .compact()
-        .with_max_level(level)
-        .with_writer(non_blocking)
-        .finish();
-    tracing::subscriber::set_global_default(subscriber)
-        .expect("Failed to set global default subscriber");
+pub fn logger_init(file: String, level: log::Level) -> Result<(), fern::InitError> {
+    fern::Dispatch::new()
+        .format(|out, message, record| {
+            out.finish(format_args!(
+                "[{} {} {}] {}",
+                humantime::format_rfc3339_seconds(SystemTime::now()),
+                record.level(),
+                record.target(),
+                message
+            ))
+        })
+        .level(level.to_level_filter())
+        .chain(fern::log_file(file)?)
+        .apply()?;
+    Ok(())
 }

src/main.rs

@@ -9,15 +9,11 @@ use crate::config::get_config;
 mod chess;
 mod config;
 mod errors;
-
-
 mod logging;
-use crate::logging::*;
 
 
 
 fn main() {
-    // logger_init();
     let config = get_config();
     if config.is_none() {
         return