use std::process::Command;
fn main() {
println!("cargo:rerun-if-changed=.git/HEAD");
println!("cargo:rerun-if-changed=.git/refs");
if let Some(sha) = git_sha() {
println!("cargo:rustc-env=GIT_SHA={sha}");
}
}
fn git_sha() -> Option<String> {
let output = Command::new("git")
.args(["rev-parse", "--short", "HEAD"])
.output()
.ok()?;
if !output.status.success() {
return None;
}
let sha = String::from_utf8(output.stdout).ok()?;
Some(sha.trim().to_string())
}