-//! This build script ensures that Clippy is not compiled with an
-//! incompatible version of rust. It will panic with a descriptive
-//! error message instead.
-//!
-//! We specifially want to ensure that Clippy is only built with a
-//! rustc version that is newer or equal to the one specified in the
-//! `min_version.txt` file.
-//!
-//! `min_version.txt` is in the repo but also in the `.gitignore` to
-//! make sure that it is not updated manually by accident. Only CI
-//! should update that file.
-//!
-//! This build script was originally taken from the Rocket web framework:
-//! https://github.com/SergioBenitez/Rocket
-
-use std::env;
+// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
fn main() {
// Forward the profile to the main compilation
- println!("cargo:rustc-env=PROFILE={}", env::var("PROFILE").unwrap());
+ println!("cargo:rustc-env=PROFILE={}", std::env::var("PROFILE").unwrap());
// Don't rebuild even if nothing changed
println!("cargo:rerun-if-changed=build.rs");
+ // forward git repo hashes we build at
+ println!(
+ "cargo:rustc-env=GIT_HASH={}",
+ rustc_tools_util::get_commit_hash().unwrap_or_default()
+ );
+ println!(
+ "cargo:rustc-env=COMMIT_DATE={}",
+ rustc_tools_util::get_commit_date().unwrap_or_default()
+ );
}