use std::process::Command;
fn main() {
println!("cargo:rerun-if-changed=.git/HEAD");
println!("cargo:rerun-if-changed=.git/refs/heads");
println!("cargo:rerun-if-changed=.git/packed-refs");
println!("cargo:rerun-if-changed=build.rs");
let commit = Command::new("git")
.args(["rev-parse", "--short", "HEAD"])
.output()
.ok()
.filter(|o| o.status.success())
.and_then(|o| String::from_utf8(o.stdout).ok())
.map_or_else(|| "unknown".to_string(), |s| s.trim().to_string());
println!("cargo:rustc-env=ANT_GIT_COMMIT={commit}");
}