fix clippy

src/util_file.rs

@@ -42,7 +42,7 @@ pub fn get_absolute_path(path: &str) -> Option<PathBuf> {
 
 pub fn read_file_content(file: &str) -> XResult<String> {
     match get_absolute_path(file) {
-        None => return Err(new_box_ioerror(&format!("File not found: {}", file))),
+        None => Err(new_box_ioerror(&format!("File not found: {}", file))),
         Some(p) => util_io::read_to_string(&mut fs::File::open(p)?),
     }
 }
@@ -89,14 +89,12 @@ fn walk_dir_with_depth_check<FError, FProcess, FFilter>(depth: &mut u32, dir: &P
         let sub_dir = path_buf.as_path();
         if sub_dir.is_file() {
             func_process_file(&sub_dir);
-        } else if sub_dir.is_dir() {
-            if func_filter_dir(&sub_dir) {
+        } else if sub_dir.is_dir() && func_filter_dir(&sub_dir) {
             *depth += 1;
             if let Err(err) = walk_dir_with_depth_check(depth, &sub_dir, func_walk_error, func_process_file, func_filter_dir) {
                 func_walk_error(&sub_dir, err);
             }
             *depth -= 1;
-            }
         } // should process else ? not file, dir
     }
     Ok(())

src/util_msg.rs

@@ -5,7 +5,7 @@ use std::{
 
 lazy_static! {
     pub static ref IS_ATTY: bool = is_atty();
-    static ref PRINT_MESSAGE_LOCK: Arc<Mutex<usize>> = Arc::new(Mutex::new(0));
+    static ref PRINT_MESSAGE_LOCK: Arc<Mutex<()>> = Arc::new(Mutex::new(()));
 }
 
 pub enum MessageType { INFO, OK, WARN, ERROR, DEBUG, }
@@ -40,7 +40,7 @@ pub fn print_message_ex(color: Option<term::color::Color>, h: &str, message: &st
     let mut lock = PRINT_MESSAGE_LOCK.lock().unwrap();
     print_color(color, true, h);
     println!(" {}", message);
-    *lock += 1;
+    *lock = ();
 }
 
 pub fn print_message(mt: MessageType, message: &str) {