perf(IO): use parallel walkdir (jwalk) for super faster traversal

src/utils/platform.rs

@@ -1,4 +1,4 @@
-use walkdir::DirEntry;
+use jwalk::DirEntry;
 
 fn get_block_size() -> u64 {
     // All os specific implementations of MetatdataExt seem to define a block as 512 bytes
@@ -9,17 +9,22 @@ fn get_block_size() -> u64 {
 #[cfg(target_family = "unix")]
 pub fn get_metadata(d: &DirEntry, use_apparent_size: bool) -> Option<(u64, Option<(u64, u64)>)> {
     use std::os::unix::fs::MetadataExt;
-    d.metadata().ok().and_then(|md| {
+    d.metadata.as_ref().unwrap().as_ref().ok().map(|md| {
         let inode = Some((md.ino(), md.dev()));
         if use_apparent_size {
-            Some((md.len(), inode))
+            (md.len(), inode)
         } else {
-            Some((md.blocks() * get_block_size(), inode))
+            (md.blocks() * get_block_size(), inode)
         }
     })
 }
 
 #[cfg(not(target_family = "unix"))]
 pub fn get_metadata(d: &DirEntry, _apparent: bool) -> Option<(u64, Option<(u64, u64)>)> {
-    d.metadata().ok().map_or(None, |md| Some((md.len(), None)))
+    d.metadata
+        .as_ref()
+        .unwrap()
+        .as_ref()
+        .ok()
+        .map(|md| (md.len(), None))
 }