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>()
    );
}