临时提交：add & index & blob

src/commands/add.rs

@@ -1,12 +1,13 @@
 use std::env;
 use std::path::{Path, PathBuf};
 use colored::Colorize;
-use crate::models::index::Index;
-use crate::utils::util::{check_repo_exist, get_working_dir, list_files};
+use crate::models::blob::Blob;
+use crate::models::index::{FileMetaData, Index};
+use crate::utils::util::{check_repo_exist, get_file_mode, get_relative_path, get_working_dir, list_files};
 
 pub fn add(files: Vec<String>, all: bool, mut update: bool) {
     check_repo_exist();
-    let index = Index::new();
+    let mut index = Index::new();
     let mut dot = files.contains(&".".to_string());
 
     let mut files: Vec<PathBuf> = files.into_iter().map(PathBuf::from).collect();
@@ -33,13 +34,30 @@ pub fn add(files: Vec<String>, all: bool, mut update: bool) {
                 index.contains(file)
             });
         }
+
+        files.extend(index.get_deleted_files()); //包含已删除的文件
     }
 
-    for file in files {
-        add_a_file(file.as_path(), &index);
+    for file in &files {
+        add_a_file(file, &mut index);
     }
 }
 
-fn add_a_file(file: &Path, index: &Index) {
-    println!("add a file: {:?}", file);
+fn add_a_file(file: &Path, index: &mut Index) {
+    println!("add a file: {}", get_relative_path(file, get_working_dir().unwrap()).display());
+    if !file.exists() { //文件被删除
+        index.remove(file);
+    } else if !index.contains(file) { //文件未被跟踪
+        let blob = Blob::new(file);
+        let meta = file.metadata().unwrap();
+        index.add(file.to_path_buf(), FileMetaData{
+            hash: blob.get_hash(),
+            size: meta.len(),
+            created_time: meta.created().unwrap(),
+            modified_time: meta.modified().unwrap(),
+            mode: get_file_mode(file)
+        });
+    } else { //文件已被跟踪，可能被修改
+
+    }
 }