use std::process::Command; fn main() { let git_output = Command::new("git").args(&["rev-parse", "--short", "HEAD"]).output().unwrap(); let git_hash = String::from_utf8(git_output.stdout).unwrap(); println!("cargo:rustc-env=GIT_HASH={git_hash}"); let build_ts = chrono::Utc::now(); println!("cargo:rustc-env=BUILD_TS={build_ts:?}"); }