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);
    let date_output = Command::new("date").args(&["+%Y-%m-%dT%H:%M:%S%z"]).output().unwrap();
    let date = String::from_utf8(date_output.stdout).unwrap();
    println!("cargo:rustc-env=BUILD_DATE={}", date);
    let date_year_output = Command::new("date").args(&["+%Y"]).output().unwrap();
    let date_year = String::from_utf8(date_year_output.stdout).unwrap();
    println!("cargo:rustc-env=BUILD_YEAR={}", date_year)
}