version_consts_git/
lib.rs

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1use std::fmt;
2
3use proc_macro_hack::proc_macro_hack;
4
5/// Determine properties of the git working tree at the crate root, if any
6///
7/// # Example
8/// ```
9/// use version_consts_git::version;
10/// fn main() {
11///     match version!() {
12///         None => eprintln!("not built from git"),
13///         Some(x) => {
14///             print!("{}", x.commit);
15///             if x.dirty {
16///                 println!(" (dirty)");
17///             } else {
18///                 println!();
19///             }
20///         }
21///     }
22/// }
23/// ```
24
25#[proc_macro_hack]
26pub use version_consts_git_impl::version;
27
28/// A concrete git commit
29#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
30pub struct Commit(pub [u8; 20]);
31
32impl std::ops::Deref for Commit {
33    type Target = [u8];
34    fn deref(&self) -> &[u8] {
35        &self.0
36    }
37}
38
39impl fmt::Display for Commit {
40    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
41        for x in &self.0 {
42            write!(f, "{:02x}", x)?;
43        }
44        Ok(())
45    }
46}
47
48#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
49pub struct Version {
50    /// The current git commit
51    pub commit: Commit,
52    /// Whether there were uncommited changes
53    pub dirty: bool,
54}
version_consts_git/lib.rs

version_consts_git/
lib.rs
