use std::process::Command;
fn main() {
let output = Command::new("git")
.args(["rev-parse", "--short", "HEAD"])
.output();
let hash = match output {
Ok(output) if output.status.success() => {
String::from_utf8_lossy(&output.stdout).trim().to_string()
}
_ => {
println!("cargo:warning=Unable to determine git hash, using 'unknown'");
String::from("unknown")
}
};
println!("cargo:rustc-env=GIT_HASH={}", hash);
}