rgit/src/data.rs

43 lines
1.1 KiB
Rust

use sha1::{Digest, Sha1};
use std::fs;
use std::str;
static RGIT_DIR: &'static str = ".rgit";
pub fn init() -> std::io::Result<()> {
fs::create_dir(RGIT_DIR)?;
fs::create_dir(format!("{}/{}", RGIT_DIR, "objects"))?;
Ok(())
}
pub fn hash_object(content: &Vec<u8>, _type: String) -> String {
let mut raw = format!("{}\u{0}", _type).into_bytes();
let mut data = content.clone();
raw.append(&mut data);
let mut hasher = Sha1::new();
hasher.update(&raw);
let digest = &hasher.finalize();
let s = format!("{:x}", digest);
fs::write(format!("{}/{}/{}", RGIT_DIR, "objects", s), raw.as_slice())
.expect("Failed to write object");
return s;
}
pub fn get_object(hash: String, expected: String) -> String {
let mut content = fs::read_to_string(format!("{}/{}/{}", RGIT_DIR, "objects", hash))
.expect("Could not find a matching object");
let index = content.find(char::from(0)).expect("object type missing");
let data = content.split_off(index + 1);
if expected != "".to_owned() {
// Compare the type
assert_eq!(expected, content);
}
return data;
}