build-info-build 0.0.6

Provides the data consumed by the build-info crate. Use as a build-dependency.
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

use anyhow::{anyhow, Result};
use git2::{Repository, StatusOptions};

use build_info::{GitInformation, VersionControl};

fn get_git_info() -> Result<GitInformation> {
	let repo = Repository::discover(".")?;
	println!("cargo:rerun-if-changed={}", repo.path().join("HEAD").to_str().unwrap());

	let head = repo.head()?;
	if let Some(name) = head.name() {
		// HEAD has already been added
		if name != "HEAD" {
			let path = repo.path().join(name);
			if path.is_file() {
				println!("cargo:rerun-if-changed={}", path.to_str().unwrap());
			} else {
				println!(
					"cargo:rerun-if-changed={}",
					repo.path().join("packed-refs").to_str().unwrap()
				);
			}
		}
	}
	let commit_hash = head
		.target()
		.ok_or_else(|| anyhow!("Could not unwrap the commit hash"))?
		.to_string();

	let changes = repo.statuses(Some(StatusOptions::new().include_ignored(false)))?;
	let dirty = !changes.is_empty();

	Ok(GitInformation {
		commit_hash,
		dirty,
		name: head.shorthand().map(|s| s.to_string()),
	})
}

pub fn get_info() -> Option<VersionControl> {
	if let Ok(info) = get_git_info() {
		return Some(VersionControl::Git(info));
	}

	None
}