made use of walkdir

src/utils.rs

@@ -1,32 +1,9 @@
 use std::{
-    fs::{self, DirEntry},
+    fs::{self},
     io,
     path::{Path, PathBuf},
 };
 
-pub fn walk_files_recursive(
-    root: impl AsRef<Path>,
-) -> std::io::Result<impl Iterator<Item = DirEntry>> {
-    fn visit(dir: &Path, out: &mut Vec<DirEntry>) -> std::io::Result<()> {
-        for entry in fs::read_dir(dir)? {
-            let entry = entry?;
-            let path = entry.path();
-            let file_type = entry.file_type()?;
-
-            if file_type.is_dir() {
-                visit(&path, out)?;
-            } else if file_type.is_file() {
-                out.push(entry);
-            }
-        }
-        Ok(())
-    }
-
-    let mut files = Vec::new();
-    visit(root.as_ref(), &mut files)?;
-    Ok(files.into_iter())
-}
-
 pub fn path_to_lowercase(path: impl AsRef<Path>) -> PathBuf {
     PathBuf::from(path.as_ref().to_string_lossy().to_lowercase())
 }