gix_features/lib.rs
1//! A crate providing foundational capabilities to other `git-*` crates with trade-offs between compile time, binary size or speed
2//! selectable using cargo feature toggles.
3//!
4//! It's designed to allow the application level crate to configure feature toggles, affecting all other `git-*` crates using
5//! this one.
6//!
7//! Thus all features provided here commonly have a 'cheap' base implementation, with the option to pull in
8//! counterparts with higher performance.
9//! ## Feature Flags
10#![cfg_attr(
11 all(doc, feature = "document-features"),
12 doc = ::document_features::document_features!()
13)]
14#![cfg_attr(all(doc, feature = "document-features"), feature(doc_cfg))]
15#![deny(missing_docs)]
16
17///
18pub mod cache;
19///
20pub mod decode;
21pub mod fs;
22pub mod hash;
23pub mod interrupt;
24#[cfg(feature = "io-pipe")]
25pub mod io;
26pub mod parallel;
27#[cfg(feature = "progress")]
28pub mod progress;
29pub mod threading;
30pub use gix_trace as trace;
31
32///
33pub mod iter {
34 /// An iterator over chunks of input, producing `Vec<Item>` with a size of `size`, with the last chunk being the remainder and thus
35 /// potentially smaller than `size`.
36 pub struct Chunks<I> {
37 /// The inner iterator to ask for items.
38 pub inner: I,
39 /// The size of chunks to produce
40 pub size: usize,
41 }
42
43 impl<I, Item> Iterator for Chunks<I>
44 where
45 I: Iterator<Item = Item>,
46 {
47 type Item = Vec<Item>;
48
49 fn next(&mut self) -> Option<Self::Item> {
50 let mut res = Vec::with_capacity(self.size);
51 let mut items_left = self.size;
52 for item in &mut self.inner {
53 res.push(item);
54 items_left -= 1;
55 if items_left == 0 {
56 break;
57 }
58 }
59 (!res.is_empty()).then_some(res)
60 }
61 }
62}