store 搜索能力

This commit is contained in:
HouXiaoxuan
2023-12-22 01:22:27 +08:00
parent 5f1d115658
commit df39d1e71b

View File

@@ -1,5 +1,7 @@
use std::path::PathBuf;
use crate::models::object::{self, Hash};
use super::utils::util;
pub struct Store {
@@ -30,6 +32,29 @@ impl Store {
path.exists()
}
/** 根据前缀搜索,有歧义时返回 None*/
pub fn search(&self, hash: &String) -> Option<Hash> {
let objects = util::list_files(self.store_path.join("objects").as_path()).unwrap();
// 转string
let objects = objects
.iter()
.map(|x| x.file_name().unwrap().to_str().unwrap().to_string())
.collect::<Vec<String>>();
let mut result = None;
for object in objects {
if object.starts_with(hash) {
if result.is_some() {
return None;
}
result = Some(object);
}
}
match result {
None => None,
Some(result) => Some(result),
}
}
pub fn save(&self, content: &String) -> String {
/* 保存文件内容 */
let hash = util::calc_hash(content);
@@ -45,6 +70,8 @@ impl Store {
}
#[cfg(test)]
mod tests {
use std::fs;
use super::*;
#[test]
@@ -69,4 +96,21 @@ mod tests {
let content2 = store.load(&hash);
assert_eq!(content, content2, "内容不一致");
}
#[test]
fn test_search() {
util::setup_test_with_clean_mit();
let hashs = vec!["1234567890".to_string(), "1235467891".to_string(), "4567892".to_string()];
for hash in hashs.iter() {
let mut path = util::get_storage_path().unwrap();
path.push("objects");
path.push(hash);
fs::write(path, "hello world").unwrap();
}
let store = Store::new();
assert!(store.search(&"123".to_string()).is_none()); // 有歧义
assert!(store.search(&"1234".to_string()).is_some()); // 精确
assert!(store.search(&"4".to_string()).is_some()); // 精确
assert!(store.search(&"1234567890123".to_string()).is_none()); // 不匹配
}
}