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