use std::process::Command;
fn main() {
let hash = Command::new("git")
.args(["rev-parse", "--short", "HEAD"])
.output()
.ok()
.filter(|output| output.status.success())
.and_then(|output| String::from_utf8(output.stdout).ok())
.map(|hash| hash.trim().to_string())
.filter(|hash| !hash.is_empty())
.unwrap_or_else(|| "unknown".to_string());
println!("cargo:rustc-env=MTUI_GIT_HASH={hash}");
println!("cargo:rerun-if-changed=.git/HEAD");
if let Ok(head) = std::fs::read_to_string(".git/HEAD") {
if let Some(reference) = head.strip_prefix("ref:").map(str::trim) {
println!("cargo:rerun-if-changed=.git/{reference}");
}
}
}