use std::process::Command;
pub fn emit_git_rerun_inputs() {
println!("cargo:rerun-if-changed=../.git/HEAD");
println!("cargo:rerun-if-changed=../.git/refs");
}
pub fn emit_full_version() {
let pkg_version = env!("CARGO_PKG_VERSION");
let parts: Vec<&str> = pkg_version.split('.').collect();
let major = parts.first().unwrap_or(&"0");
let minor = parts.get(1).unwrap_or(&"0");
let commit_count = git_stdout(["rev-list", "--count", "HEAD"]).unwrap_or_else(|| "0".into());
let commit_hash =
git_stdout(["rev-parse", "--short", "HEAD"]).unwrap_or_else(|| "unknown".into());
let version = format!("{}.{}.{}-{}", major, minor, commit_count, commit_hash);
println!("cargo:rustc-env=FULL_VERSION={}", version);
}
fn git_stdout<const N: usize>(args: [&str; N]) -> Option<String> {
Command::new("git")
.args(args)
.output()
.ok()
.and_then(|o| String::from_utf8(o.stdout).ok())
.map(|s| s.trim().to_string())
}