47 lines
1.5 KiB
Rust
47 lines
1.5 KiB
Rust
//! Just embed git-hash to `--version`
|
|
|
|
use std::{env, path::PathBuf, process::Command};
|
|
|
|
fn main() {
|
|
set_rerun();
|
|
|
|
let rev =
|
|
env::var("RUST_ANALYZER_REV").ok().or_else(rev).unwrap_or_else(|| "???????".to_string());
|
|
println!("cargo:rustc-env=REV={}", rev)
|
|
}
|
|
|
|
fn set_rerun() {
|
|
println!("cargo:rerun-if-env-changed=RUST_ANALYZER_REV");
|
|
|
|
let mut manifest_dir = PathBuf::from(
|
|
env::var("CARGO_MANIFEST_DIR").expect("`CARGO_MANIFEST_DIR` is always set by cargo."),
|
|
);
|
|
|
|
while manifest_dir.parent().is_some() {
|
|
if manifest_dir.join(".git/HEAD").exists() {
|
|
let git_dir = manifest_dir.join(".git");
|
|
|
|
println!("cargo:rerun-if-changed={}", git_dir.join("HEAD").display());
|
|
// current branch ref
|
|
if let Ok(output) =
|
|
Command::new("git").args(&["rev-parse", "--symbolic-full-name", "HEAD"]).output()
|
|
{
|
|
if let Ok(ref_link) = String::from_utf8(output.stdout) {
|
|
println!("cargo:rerun-if-changed={}", git_dir.join(ref_link).display());
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
|
|
manifest_dir.pop();
|
|
}
|
|
println!("cargo:warning=Could not find `.git/HEAD` from manifest dir!");
|
|
}
|
|
|
|
fn rev() -> Option<String> {
|
|
let output = Command::new("git").args(&["rev-parse", "HEAD"]).output().ok()?;
|
|
let stdout = String::from_utf8(output.stdout).ok()?;
|
|
let short_hash = stdout.get(0..7)?;
|
|
Some(short_hash.to_owned())
|
|
}
|