use std::process::Command;
fn main() {
let output = Command::new("git")
.args(["rev-parse", "--short=7", "HEAD"])
.output();
let git_hash = if let Ok(output) = output {
String::from_utf8_lossy(&output.stdout).trim().to_string()
} else {
"unknown".to_string()
};
println!("cargo:rustc-env=GIT_HASH={}", git_hash);
println!("cargo:rerun-if-changed=../.git/HEAD");
}