refactor check logic.

src/meta/file.rs

@@ -111,13 +111,20 @@ impl FileMeta {
     pub fn to_pretty_json(&self) -> Result<String> {
         Ok(serde_json::to_string_pretty(self)?)
     }
-
-    pub fn matches(&self, other: &Self) -> bool {
-        self.size == other.size
-            && self.ed2k == other.ed2k
-            && self.md5 == other.md5
-            && self.sha1 == other.sha1
-            && self.sha256 == other.sha256
-            && self.xxh128 == other.xxh128
-    }
+}
+
+pub fn calc_xxh128(path: &Path) -> Result<String> {
+    let mut file = File::open(path).with_context(|| format!("无法打开文件: {}", path.display()))?;
+    let mut buffer = vec![0u8; DEFAULT_BUFFER_SIZE];
+    let mut hasher = Xxh3::new();
+
+    loop {
+        let read_len = file.read(&mut buffer)?;
+        if read_len == 0 {
+            break;
+        }
+        hasher.update(&buffer[..read_len]);
+    }
+
+    Ok(hex_upper(hasher.digest128().to_be_bytes()))
 }