cloud-hypervisor/build.rs

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Rust
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// 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()
);
}