grit-lib 0.5.20

Core library for the grit Git implementation
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

//! `write_ref_cas`, `delete_ref`, and physical listing coverage.

#![allow(clippy::unwrap_used, clippy::expect_used)]

use grit_lib::objects::ObjectId;
use grit_lib::refs::{
    delete_ref, list_refs_physical, read_raw_ref, resolve_ref, write_ref, write_ref_cas,
    RawRefLookup,
};
use grit_lib::repo::{InitOptions, Repository};
use tempfile::tempdir;

fn oid(byte: u8) -> ObjectId {
    ObjectId::from_bytes(&[byte; 20]).expect("oid")
}

#[test]
fn write_ref_cas_and_delete_loose_ref() {
    let dir = tempdir().expect("tempdir");
    Repository::init(
        dir.path(),
        &InitOptions::new()
            .with_initial_branch("main".to_owned())
            .with_ref_storage(grit_lib::RefStorageFormat::Files),
    )
    .expect("init");
    let git_dir = dir.path().join(".git");
    let name = "refs/heads/cas";
    write_ref(&git_dir, name, &oid(1)).expect("create");
    write_ref_cas(&git_dir, name, &oid(2), oid(1)).expect("cas");
    assert_eq!(resolve_ref(&git_dir, name).expect("resolve"), oid(2));
    delete_ref(&git_dir, name).expect("delete");
    assert!(matches!(
        read_raw_ref(&git_dir, name).expect("gone"),
        RawRefLookup::NotFound
    ));
}

#[test]
fn list_refs_physical_includes_loose_file() {
    let dir = tempdir().expect("tempdir");
    Repository::init(
        dir.path(),
        &InitOptions::new()
            .with_initial_branch("main".to_owned())
            .with_ref_storage(grit_lib::RefStorageFormat::Files),
    )
    .expect("init");
    let git_dir = dir.path().join(".git");
    write_ref(&git_dir, "refs/heads/extra", &oid(9)).expect("write");
    let physical = list_refs_physical(&git_dir, "refs/").expect("list");
    assert!(physical.iter().any(|(n, _)| n == "refs/heads/extra"));
}