faet: single file process.

src/meta/tree.rs

@@ -71,6 +71,12 @@ impl DirSnapshot {
                 continue;
             }
 
+            // 获取文件大小并开始跟踪
+            let file_size = entry.metadata()
+                .map(|m| m.len())
+                .unwrap_or(0);
+            tracker.start_file(file_size, &name);
+
             let on_bytes = tracker.bytes_callback();
             let on_iop = tracker.iop_callback();
             let meta = FileMeta::from_path_with_callback(&full_path, on_bytes, on_iop)?;
@@ -181,6 +187,12 @@ fn walk_dir_with_progress(
             continue;
         }
 
+        // 获取文件大小并开始跟踪
+        let file_size = entry.metadata()
+            .map(|m| m.len())
+            .unwrap_or(0);
+        tracker.start_file(file_size, &name);
+
         let on_bytes = tracker.bytes_callback();
         let on_iop = tracker.iop_callback();
         let hash = calc_xxh128_with_callback(&full_path, on_bytes, on_iop)?;