crates_index_diff/index/
mod.rs

1use crate::Index;
2use std::str;
3
4static INDEX_GIT_URL: &str = "https://github.com/rust-lang/crates.io-index";
5static LAST_SEEN_REFNAME: &str = "refs/heads/crates-index-diff_last-seen";
6
7/// Declarative macro to generate `impl From<Src> for Error` where the source
8/// error value is boxed into the given `Error` enum variant.
9///
10/// Usage:
11/// impl_from_boxed!(gix::object::find::existing::Error => ErrorEnum::FindObject);
12/// impl_from_boxed!(gix::remote::find::existing::Error => ErrorEnum::FindRemote);
13///
14/// See also:
15/// * https://rust-lang.github.io/rust-clippy/stable/index.html#/result_large_err
16/// * https://github.com/dtolnay/thiserror/pull/419
17/// * https://github.com/dtolnay/thiserror/pull/418
18/// * https://github.com/dtolnay/thiserror/issues/302
19macro_rules! impl_from_boxed {
20    ($src:path => $err:ident::$variant:ident) => {
21        impl From<$src> for $err {
22            fn from(value: $src) -> Self {
23                Self::$variant(Box::new(value))
24            }
25        }
26    };
27}
28
29/// Options for cloning the crates-io index.
30pub struct CloneOptions {
31    /// The url to clone the crates-index repository from.
32    pub url: String,
33}
34
35impl Default for CloneOptions {
36    fn default() -> Self {
37        CloneOptions {
38            url: INDEX_GIT_URL.into(),
39        }
40    }
41}
42
43/// Access
44impl Index {
45    /// Return the crates.io repository.
46    pub fn repository(&self) -> &gix::Repository {
47        &self.repo
48    }
49
50    /// Return the crates.io repository, mutably.
51    pub fn repository_mut(&mut self) -> &mut gix::Repository {
52        &mut self.repo
53    }
54
55    /// Return the reference pointing to the state we have seen after calling `fetch_changes()`.
56    pub fn last_seen_reference(
57        &self,
58    ) -> Result<gix::Reference<'_>, gix::reference::find::existing::Error> {
59        self.repo.find_reference(self.seen_ref_name)
60    }
61}
62
63/// Main index diff functionality
64pub mod diff;
65/// initial index repo loading & cloning
66pub mod init;