[lint] Improve the code

src/bin/cmus-notify.rs

@@ -1,8 +1,7 @@
 use cmus_notify::{
-    cmus::{self, events::CmusEvent, query::CmusQueryResponse},
-    notification, settings,
+    cmus::{self, query::CmusQueryResponse},
+    notification,
     settings::Settings,
-    track_cover, TrackCover,
 };
 
 #[cfg(feature = "debug")]

src/cmus/events.rs

@@ -1,6 +1,6 @@
-use crate::{process_template_placeholders, settings};
-use crate::cmus::{Track, TrackStatus};
-use crate::cmus::player_settings::{AAAMode, PlayerSettings, Shuffle};
+use crate::{process_template_placeholders};
+use crate::cmus::{Track};
+use crate::cmus::player_settings::{PlayerSettings};
 use crate::notification::Action;
 use crate::settings::Settings;
 

src/cmus/mod.rs

@@ -112,7 +112,7 @@ impl TemplateProcessor for Track {
             if let Some(value) = match key.as_str() {
                 "status" => Some(status.as_str()),
                 "title" => Some(self.get_name()),
-                _ => self.metadata.get(&key),
+                _ => self.metadata.get(key),
             } {
                 processed = processed.replace(&format!("{{{key}}}"), value);
             }
@@ -200,13 +200,13 @@ impl TrackMetadata {
     /// This function will assume you processed the first 4 lines, and remove them from the iterator.
     ///
     /// and also assume the all tags is contained in the iterator.
-    fn parse<'a>(mut lines: impl Iterator<Item = &'a str> + Debug) -> Self {
+    fn parse<'a>(lines: impl Iterator<Item = &'a str> + Debug) -> Self {
         #[cfg(feature = "debug")]
         info!("Parsing track metadata from lines: {:?}", lines);
 
         let mut tags = HashMap::new();
 
-        while let Some(line) = lines.next() {
+        for line in lines {
             #[cfg(feature = "debug")]
             debug!("Parsing line: {}", line);
             match line.trim().split_once(' ') {
@@ -240,7 +240,7 @@ impl Track {
                 .split('/')
                 .last()
                 .unwrap_or("")
-                .split_once(".")
+                .split_once('.')
                 .unwrap_or(("", ""))
                 .0
         })
@@ -268,7 +268,7 @@ pub fn ping_cmus(
     let output =
         String::from_utf8(output.stdout).map_err(|e| CmusError::UnknownError(e.to_string()))?;
 
-    CmusQueryResponse::from_str(&output).map_err(|e| CmusError::UnknownError(e.to_string()))
+    CmusQueryResponse::from_str(&output).map_err(CmusError::UnknownError)
 }
 
 /// Build the query command.

src/cmus/player_settings.rs

@@ -123,7 +123,7 @@ impl FromStr for PlayerSettings {
             debug!("Parsing line: {}", line);
             if line.starts_with("set ") {
                 let line = &line[4..];
-                let (key, value) = line.split_once(" ").ok_or(CmusError::UnknownError(
+                let (key, value) = line.split_once(' ').ok_or(CmusError::UnknownError(
                     "Corrupted cmus response".to_string(),
                 ))?;
 

src/cmus/query.rs

@@ -71,8 +71,8 @@ impl CmusQueryResponse {
                 #[cfg(feature = "debug")]
                 debug!("Track changed: {:?} -> {:?}", other_track, track);
                 events.push(CmusEvent::TrackChanged(
-                    other_track.clone(),
-                    other_player_settings.clone(),
+                    other_track,
+                    other_player_settings,
                 ));
                 // We don't need to check for other changes, since the track changed.
                 return Ok(events);
@@ -93,7 +93,7 @@ impl CmusQueryResponse {
                     other_track.position, track.position
                 );
                 events.push(CmusEvent::PositionChanged(
-                    track.clone(),
+                    track,
                     other_player_settings.clone(),
                 ));
             }
@@ -244,8 +244,8 @@ mod tests {
         let player_settings = player_settings.unwrap();
 
         assert_eq!(player_settings.aaa_mode, AAAMode::All);
-        assert_eq!(player_settings.repeat, true);
-        assert_eq!(player_settings.repeat_current, false);
+        assert!(player_settings.repeat);
+        assert!(!player_settings.repeat_current);
         assert_eq!(player_settings.shuffle, Shuffle::Off);
         assert_eq!(player_settings.volume.left, 17);
         assert_eq!(player_settings.volume.right, 17);

src/lib.rs

@@ -170,9 +170,9 @@ pub fn track_cover(
     }
 
     if !no_use_external_cover {
-        let (Ok(regx), path) = (match path.split("/").last() {
+        let (Ok(regx), path) = (match path.split('/').last() {
             Some(last_pat) if last_pat.contains("r#") => {
-                (regex::Regex::new(&*last_pat.replace("r#", "")),
+                (regex::Regex::new(&last_pat.replace("r#", "")),
                 // Remove the last part of the path
                 path.remove(path.len() - last_pat.len() - 1).to_string())
             }

src/notification.rs

@@ -1,11 +1,11 @@
 #[cfg(feature = "debug")]
-use log::{debug, info};
+use log::{info};
 use notify_rust::Notification;
 
-use crate::{process_template_placeholders, settings, track_cover, TrackCover};
-use crate::cmus::{TemplateProcessor, Track, TrackStatus};
+use crate::{track_cover, TrackCover};
+use crate::cmus::{TemplateProcessor, Track};
 use crate::cmus::events::CmusEvent;
-use crate::cmus::player_settings::PlayerSettings;
+
 use crate::cmus::query::CmusQueryResponse;
 use crate::settings::Settings;
 

src/settings.rs

@@ -373,7 +373,7 @@ impl Settings {
             .or(cfg.notification_static_cover);
         cfg.cover_path_template = args.cover_path_template.or(cfg.cover_path_template);
         #[cfg(feature = "lyrics")]
-        if args.lyrics_path != None {
+        if args.lyrics_path.is_some() {
             #[cfg(feature = "debug")]
             debug!("The user not override the lyrics_path, using the config's lyrics_path. lyrics_path: {:?}", cfg.lyrics_path);
             cfg.lyrics_path = args.lyrics_path;