Apply Clippy lints

src/embedded.rs

@@ -20,11 +20,11 @@ struct ExerciseFiles {
 }
 
 fn create_dir_if_not_exists(path: &str) -> Result<()> {
-    if let Err(e) = create_dir(path) {
-        if e.kind() != io::ErrorKind::AlreadyExists {
+    if let Err(e) = create_dir(path)
+        && e.kind() != io::ErrorKind::AlreadyExists
+    {
         return Err(Error::from(e).context(format!("Failed to create the directory {path}")));
     }
-    }
 
     Ok(())
 }

src/exercise.rs

@@ -48,8 +48,9 @@ fn run_bin(
 
     let success = cmd_runner.run_debug_bin(bin_name, output.as_deref_mut())?;
 
-    if let Some(output) = output {
-        if !success {
+    if let Some(output) = output
+        && !success
+    {
         // This output is important to show the user that something went wrong.
         // Otherwise, calling something like `exit(1)` in an exercise without further output
         // leaves the user confused about why the exercise isn't done yet.
@@ -59,7 +60,6 @@ fn run_bin(
         write_ansi(output, ResetColor);
         output.push(b'\n');
     }
-    }
 
     Ok(success)
 }

src/list/state.rs

@@ -118,8 +118,8 @@ impl<'a> ListState<'a> {
     }
 
     fn draw_exercise_name(&self, writer: &mut MaxLenWriter, exercise: &Exercise) -> io::Result<()> {
-        if !self.search_query.is_empty() {
-            if let Some((pre_highlight, highlight, post_highlight)) = exercise
+        if !self.search_query.is_empty()
+            && let Some((pre_highlight, highlight, post_highlight)) = exercise
                 .name
                 .find(&self.search_query)
                 .and_then(|ind| exercise.name.split_at_checked(ind))
@@ -134,7 +134,6 @@ impl<'a> ListState<'a> {
             writer.stdout.queue(SetForegroundColor(Color::Reset))?;
             return writer.write_str(post_highlight);
         }
-        }
 
         writer.write_str(exercise.name)
     }