Better debug messages and logging handling

src/lib.rs

@@ -40,13 +40,14 @@ pub mod utils;
 /// lang_evolve_core::init();
 /// ```
 pub fn init() -> std::result::Result<(), log::SetLoggerError> {
-    match CombinedLogger::init(vec![
+    // #[cfg(debug_assertions)]
-        TermLogger::new(
+    match CombinedLogger::init(if cfg!(debug_assertions) {
+        vec![
+            WriteLogger::new(
                 LevelFilter::Warn,
                 Config::default(),
-            TerminalMode::Mixed,
+                File::create("core.log").unwrap(),
-        )
+            ),
-        .unwrap(),
             WriteLogger::new(
                 LevelFilter::Debug,
                 Config::default(),
@@ -57,7 +58,21 @@ pub fn init() -> std::result::Result<(), log::SetLoggerError> {
                 Config::default(),
                 File::create("core.log").unwrap(),
             ),
-    ]) {
+        ]
+    } else {
+        vec![
+            WriteLogger::new(
+                LevelFilter::Warn,
+                Config::default(),
+                File::create("core.log").unwrap(),
+            ),
+            WriteLogger::new(
+                LevelFilter::Info,
+                Config::default(),
+                File::create("core.log").unwrap(),
+            ),
+        ]
+    }) {
         Err(why) => {
             warn!("Could not initialize logger: {}", why.to_string());
             Err(why)

src/settings/mod.rs

@@ -347,16 +347,24 @@ impl Settings {
         debug!("===============================================");
         for rule in rules {
             debug!(
-                "from: {}\tto: {}",
+                "from: \"{}\"\tto: \"{}\"",
                 rule.get_from().to_string(),
                 rule.get_to()
             );
-            debug!("old: {}", s);
+            let old = s.clone();
-            s = rule
+            let new = rule
                 .get_from()
                 .replace_all(&s, rule.get_to().as_str())
                 .to_string();
-            debug!("new: {}", s);
+            if cfg!(debug_assertions) {
+                let diffs = diff_words(&old, &new);
+                if diffs.diff().len() > 1 {
+                    debug!("diff:\n{}", diff_words(&old, &new));
+                } else {
+                    debug!("diff: No changes");
+                }
+            }
+            s = new;
         }
         Ok(s)
     }