mirror of
https://github.com/MrBeanCpp/MIT.git
synced 2026-02-06 20:03:35 +08:00
439 lines
13 KiB
Rust
439 lines
13 KiB
Rust
use sha1::{Digest, Sha1};
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use std::{
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fs, io,
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io::Write,
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option,
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path::{Path, PathBuf},
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};
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use crate::models::{commit::Commit, object::Hash, tree::Tree};
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pub const ROOT_DIR: &str = ".mit";
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pub const TEST_DIR: &str = "mit_test_storage"; // 执行测试的储存库
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/* tools for test */
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fn setup_test_dir() {
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color_backtrace::install(); // colorize backtrace
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let cargo_path = std::env::var("CARGO_MANIFEST_DIR");
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let path: PathBuf = {
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if cargo_path.is_err() {
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// vscode DEBUG test没有CARGO_MANIFEST_DIR宏，手动尝试查找cargo.toml
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let mut path = std::env::current_dir().unwrap();
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loop {
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path.push("Cargo.toml");
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if path.exists() {
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break;
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}
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if !path.pop() {
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panic!("找不到CARGO_MANIFEST_DIR");
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}
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}
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path.pop();
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path
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} else {
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PathBuf::from(cargo_path.unwrap())
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}
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};
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let mut path = PathBuf::from(path);
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path.push(TEST_DIR);
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if !path.exists() {
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fs::create_dir(&path).unwrap();
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}
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std::env::set_current_dir(&path).unwrap();
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}
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pub fn setup_test_with_mit() {
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// 将执行目录切换到测试目录
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setup_test_dir();
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let _ = crate::commands::init::init();
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}
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/// with 初始化的干净的mit
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pub fn setup_test_with_clean_mit() {
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setup_test_without_mit();
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let _ = crate::commands::init::init();
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}
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pub fn setup_test_without_mit() {
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// 将执行目录切换到测试目录，并清除测试目录下的.mit目录
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setup_test_dir();
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let mut path = std::env::current_dir().unwrap();
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path.push(ROOT_DIR);
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if path.exists() {
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fs::remove_dir_all(&path).unwrap();
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}
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}
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pub fn ensure_test_file(path: &Path, content: option::Option<&str>) {
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// 以测试目录为根目录，创建文件
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fs::create_dir_all(path.parent().unwrap()).unwrap(); // ensure父目录
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let mut file =
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fs::File::create(get_working_dir().unwrap().join(path)).expect(format!("无法创建文件：{:?}", path).as_str());
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if let Some(content) = content {
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file.write(content.as_bytes()).unwrap();
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} else {
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// 写入文件名
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file.write(path.file_name().unwrap().to_str().unwrap().as_bytes()).unwrap();
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}
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}
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/* tools for mit */
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pub fn calc_hash(data: &String) -> String {
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let mut hasher = Sha1::new();
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hasher.update(data);
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let hash = hasher.finalize();
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hex::encode(hash)
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}
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/// 计算文件的hash
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pub fn calc_file_hash(path: &Path) -> String {
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let data = fs::read_to_string(path).expect(&format!("无法读取文件：{}", path.display()));
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calc_hash(&data)
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}
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pub fn storage_exist() -> bool {
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/*检查是否存在储存库 */
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let rt = get_storage_path();
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match rt {
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Ok(_) => true,
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Err(_) => false,
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}
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}
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pub fn check_repo_exist() {
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if !storage_exist() {
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println!("fatal: not a mit repository (or any of the parent directories): .mit");
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panic!("不是合法的mit仓库");
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}
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}
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/// 获取.mit目录路径
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pub fn get_storage_path() -> Result<PathBuf, io::Error> {
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/*递归获取储存库 */
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let mut current_dir = std::env::current_dir()?;
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loop {
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let mut git_path = current_dir.clone();
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git_path.push(ROOT_DIR);
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if git_path.exists() {
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return Ok(git_path);
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}
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if !current_dir.pop() {
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return Err(io::Error::new(
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io::ErrorKind::NotFound,
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format!("{:?} is not a git repository", std::env::current_dir()?),
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));
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}
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}
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}
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/// 获取项目工作区目录, 也就是.mit的父目录
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pub fn get_working_dir() -> Option<PathBuf> {
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if let Some(path) = get_storage_path().unwrap().parent() {
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Some(path.to_path_buf())
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} else {
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None
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}
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}
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/// 检查文件是否在dir内(包括子文件夹)， 若不存在则false
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pub fn is_inside_dir(file: &Path, dir: &Path) -> bool {
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if file.exists() {
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let file = get_absolute_path(file);
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file.starts_with(dir)
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} else {
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false
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}
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}
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/// 检测dir是否是file的父目录 (不论文件是否存在)
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pub fn is_parent_dir(file: &Path, dir: &Path) -> bool {
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let file = get_absolute_path(file);
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file.starts_with(dir)
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}
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/// 检查文件是否在工作区内， 若不存在则false
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pub fn is_inside_workdir(file: &Path) -> bool {
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is_inside_dir(file, &get_working_dir().unwrap())
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}
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/// 检查文件是否在.mit内， 若不存在则false
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pub fn is_inside_repo(file: &Path) -> bool {
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is_inside_dir(file, &get_storage_path().unwrap())
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}
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pub fn format_time(time: &std::time::SystemTime) -> String {
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let datetime: chrono::DateTime<chrono::Utc> = time.clone().into();
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datetime.format("%Y-%m-%d %H:%M:%S.%3f").to_string()
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}
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/// 递归遍历给定目录及其子目录，列出所有文件，除了.mit
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pub fn list_files(path: &Path) -> io::Result<Vec<PathBuf>> {
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let mut files = Vec::new();
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if path.is_dir() {
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if path.file_name().unwrap_or_default() == ROOT_DIR {
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// 跳过 .mit 目录
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return Ok(files);
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}
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for entry in fs::read_dir(path)? {
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let entry = entry?;
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let path = entry.path();
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if path.is_dir() {
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// 递归遍历子目录
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files.extend(list_files(&path)?);
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} else {
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// 将文件的路径添加到列表中
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files.push(path);
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}
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}
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}
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Ok(files)
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}
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/// 列出工作区所有文件(包括子文件夹)
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pub fn list_workdir_files() -> Vec<PathBuf> {
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if let Ok(files) = list_files(&get_working_dir().unwrap()) {
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files
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} else {
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Vec::new()
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}
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}
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/// 获取相对于dir的相对路径
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pub fn get_relative_path(path: &Path, dir: &Path) -> PathBuf {
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let path = if path.is_relative() {
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get_absolute_path(path)
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} else {
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path.to_path_buf()
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};
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let relative_path = path.strip_prefix(dir).unwrap();
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relative_path.to_path_buf()
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}
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/// 获取相较于工作区(Working Dir)的相对路径
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pub fn to_workdir_relative_path(path: &Path) -> PathBuf {
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get_relative_path(path, &get_working_dir().unwrap())
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}
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/// 获取相较于工作区(Working Dir)的绝对路径
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pub fn to_workdir_absolute_path(path: &Path) -> PathBuf {
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if path.is_relative() {
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get_working_dir().unwrap().join(path)
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} else {
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path.to_path_buf()
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}
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}
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fn is_executable(path: &str) -> bool {
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#[cfg(not(target_os = "windows"))]
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{
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use std::os::unix::fs::PermissionsExt;
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fs::metadata(path)
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.map(|metadata| metadata.permissions().mode() & 0o111 != 0)
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.unwrap_or(false)
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}
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#[cfg(windows)]
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{
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let path = Path::new(path);
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match path.extension().and_then(|s| s.to_str()) {
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Some(ext) => ext.eq_ignore_ascii_case("exe") || ext.eq_ignore_ascii_case("bat"),
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None => false,
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}
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}
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}
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pub fn get_file_mode(path: &Path) -> String {
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// if is_executable(path.to_str().unwrap()) {
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// "100755".to_string()
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// } else {
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// "100644".to_string()
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// }
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if path.is_dir() {
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"40000".to_string() // 目录
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} else if is_executable(path.to_str().unwrap()) {
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"100755".to_string() // 可执行文件
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} else {
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"100644".to_string()
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}
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}
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/// 清除Windows下的绝对路径前缀"\\\\?\\" (由[PathBuf::canonicalize]函数产生)
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/// <br><a href="https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#maximum-path-length-limitation">Windows 系统中的文件路径格式</a>
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pub fn clean_win_abs_path_pre(path: PathBuf) -> PathBuf {
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#[cfg(windows)]
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{
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const DOS_PREFIX: &str = "\\\\?\\";
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let path_str = path.to_string_lossy();
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if path_str.starts_with(DOS_PREFIX) {
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PathBuf::from(&path_str[DOS_PREFIX.len()..])
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} else {
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path
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}
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}
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#[cfg(not(target_os = "windows"))]
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{
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path
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}
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}
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/// 获取绝对路径（相对于目录current_dir） 不论是否存在
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pub fn get_absolute_path(path: &Path) -> PathBuf {
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if path.is_absolute() {
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path.to_path_buf()
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} else {
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/*let abs_path = path.canonicalize().unwrap(); //这一步会统一路径分隔符 //canonicalize()不能处理不存在的文件
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clean_win_abs_path_pre(abs_path)*/
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// 所以决定手动解析相对路径中的../ ./
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let mut abs_path = std::env::current_dir().unwrap(); //cur_dir
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for component in path.components() {
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match component {
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std::path::Component::ParentDir => {
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if !abs_path.pop() {
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panic!("relative path parse error");
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}
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}
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std::path::Component::Normal(part) => abs_path.push(part),
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std::path::Component::CurDir => {}
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_ => {}
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}
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}
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abs_path
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}
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}
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/// 整理输入的路径数组（相对、绝对、文件、目录、甚至包括不存在），返回一个绝对路径的文件数组
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pub fn integrate_paths(paths: &Vec<PathBuf>) -> Vec<PathBuf> {
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let mut abs_paths = Vec::new();
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for path in paths {
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let path = get_absolute_path(&path); // 统一转换为绝对路径
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if path.is_dir() {
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// 包括目录下的所有文件(子文件夹)
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let files = list_files(&path).unwrap();
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abs_paths.extend(files);
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} else {
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abs_paths.push(path);
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}
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}
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abs_paths.sort();
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abs_paths.dedup(); // 去重
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abs_paths
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}
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#[derive(Debug, PartialEq)]
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pub enum ObjectType {
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Blob,
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Tree,
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Commit,
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Invalid,
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}
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pub fn check_object_type(hash: Hash) -> ObjectType {
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let path = get_storage_path().unwrap().join("objects").join(hash);
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if path.exists() {
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let data = fs::read_to_string(path).unwrap(); //TODO store::load?
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let result: Result<Commit, serde_json::Error> = serde_json::from_str(&data);
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if result.is_ok() {
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return ObjectType::Commit;
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}
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let result: Result<Tree, serde_json::Error> = serde_json::from_str(&data);
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if result.is_ok() {
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return ObjectType::Tree;
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}
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return ObjectType::Blob;
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}
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ObjectType::Invalid
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}
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/// 判断hash对应的文件是否是commit
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pub fn is_typeof_commit(hash: Hash) -> bool {
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check_object_type(hash) == ObjectType::Commit
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}
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#[cfg(test)]
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mod tests {
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use crate::models::{blob::Blob, index::Index};
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use super::*;
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#[test]
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fn test_get_storage_path() {
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let path = get_storage_path();
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match path {
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Ok(path) => println!("{:?}", path),
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Err(err) => match err.kind() {
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std::io::ErrorKind::NotFound => println!("Not a git repository"),
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_ => assert!(false, "Unexpected error"),
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},
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}
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}
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#[test]
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fn test_integrate_paths() {
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let mut paths = Vec::new();
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paths.push(PathBuf::from("src/utils"));
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paths.push(PathBuf::from("../test_del.txt"));
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paths.push(PathBuf::from("src/utils/util.rs"));
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// paths.push(PathBuf::from("."));
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let abs_paths = integrate_paths(&paths);
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for path in abs_paths {
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println!("{}", path.display());
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}
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}
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#[test]
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fn test_get_absolute_path() {
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let path = Path::new("mit_test_storage/../src/main.rs");
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let abs_path = get_absolute_path(path);
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println!("{:?}", abs_path);
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let mut cur_dir = std::env::current_dir().unwrap();
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cur_dir.push("mit_test_storage");
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cur_dir.pop();
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cur_dir.push("src/main.rs");
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assert_eq!(abs_path, cur_dir);
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}
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#[test]
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fn test_is_inside_repo() {
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setup_test_with_mit();
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let path = Path::new("../Cargo.toml");
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assert_eq!(is_inside_workdir(path), false);
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let path = Path::new(".mit/HEAD");
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assert_eq!(is_inside_workdir(path), true);
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}
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#[test]
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fn test_format_time() {
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let time = std::time::SystemTime::now();
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let formatted_time = format_time(&time);
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println!("{:?}", time);
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println!("{}", formatted_time);
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}
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#[test]
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fn test_list_files() {
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let files = list_files(Path::new("F:\\Git-Test\\list-test"));
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match files {
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Ok(files) => {
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for file in files {
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println!("{}", file.display());
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}
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}
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Err(err) => println!("{}", err),
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}
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}
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#[test]
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fn test_check_object_type() {
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setup_test_with_clean_mit();
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assert_eq!(check_object_type("123".into()), ObjectType::Invalid);
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ensure_test_file(Path::new("test.txt"), Some("test"));
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let hash = Blob::new(get_working_dir().unwrap().join("test.txt").as_path()).get_hash();
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assert_eq!(check_object_type(hash), ObjectType::Blob);
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let mut commit = Commit::new(&Index::new(), vec![], "test".to_string());
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assert_eq!(check_object_type(commit.get_tree_hash()), ObjectType::Tree);
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commit.save();
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assert_eq!(check_object_type(commit.get_hash()), ObjectType::Commit);
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}
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}
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