初步编写add逻辑；新增终端颜色库

src/models/index.rs

@@ -1,11 +1,13 @@
 use std::collections::HashMap;
-use std::path::PathBuf;
+use std::fs;
+use std::path::{Path, PathBuf};
 use std::time::SystemTime;
+use serde::{Deserialize, Serialize};
 use crate::models::object::Hash;
 
 // 文件元数据结构
-#[derive(Debug, Clone)]
-struct FileMetaData {
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct FileMetaData {
     hash: Hash,              // SHA-1 哈希值
     size: u64,                 // 文件大小
     created_time: SystemTime,  // 创建时间
@@ -14,11 +16,56 @@ struct FileMetaData {
 }
 
 // 索引数据结构
-#[derive(Debug, Default)]
-struct Index {
+#[derive(Serialize, Deserialize, Debug, Default)]
+pub struct Index {
     entries: HashMap<PathBuf, FileMetaData>,
 }
 
+impl Index {
+    // 创建索引
+    pub(crate) fn new() -> Index {
+        let mut index = Index {
+            entries: HashMap::new(),
+        };
+        index.load();
+        return index;
+    }
+
+    // 添加文件
+    fn add(&mut self, path: PathBuf, data: FileMetaData) {
+        self.entries.insert(path, data);
+    }
+
+    // 删除文件
+    fn remove(&mut self, path: PathBuf) {
+        self.entries.remove(&path);
+    }
+
+    // 获取文件元数据
+    fn get(&self, path: PathBuf) -> Option<&FileMetaData> {
+        self.entries.get(&path)
+    }
+
+    // 获取所有文件元数据
+    fn get_all(&self) -> &HashMap<PathBuf, FileMetaData> {
+        &self.entries
+    }
+    
+    pub fn contains(&self, path: &Path) -> bool {
+        self.entries.contains_key(path)
+    }
+
+    fn load(&mut self) {
+
+    }
+
+    /// 二进制序列化
+    fn save(&self) {
+        let ser = serde_json::to_string(&self).unwrap();
+        println!("{}", ser);
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use std::fs;