use std::process::Command;
fn main() {
let output = Command::new("git")
.args(["rev-parse", "HEAD"])
.output()
.unwrap();
let git_hash = String::from_utf8(output.stdout).unwrap();
println!(
"cargo:rustc-env=GIT_HASH={}",
git_hash.chars().take(7).collect::<String>()
);
}