cloud-hypervisor/build.rs
Bo Chen ebd83699dc main: Display git commit hash with the '--version' option
Add a build-script to propagate the git commit hash to other crates at
compile time through environment variables, and display the hash along
with the '--version' option.

Fixes #729

Signed-off-by: Bo Chen <chen.bo@intel.com>
2020-02-14 10:00:14 +01:00

23 lines
633 B
Rust

// Copyright © 2020 Intel Corporation
//
// SPDX-License-Identifier: Apache-2.0
//
use std::process::Command;
fn main() {
let git_out = Command::new("git")
.args(&["describe", "--dirty"])
.output()
.expect("Expect to get git describe output");
// This println!() has a special behavior, as it will set the environment
// variable BUILT_VERSION, so that it can be reused from the binary.
// Particularly, this is used from src/main.rs to display the exact
// version.
println!(
"cargo:rustc-env=BUILT_VERSION={}",
String::from_utf8(git_out.stdout).unwrap()
);
}