use std::process::Command;
fn main() {
let git_hash = Command::new("git")
.args(["rev-parse", "HEAD"])
.output()
.map(|output| {
let hash = String::from_utf8_lossy(&output.stdout).trim().to_string();
hash.chars().take(8).collect::<String>()
})
.unwrap_or_else(|_| String::from("unknown"));
println!("cargo:rustc-env=GIT_HASH={}", git_hash);
}