fn main() { // Forward the profile to the main compilation 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() ); println!( "cargo:rustc-env=RUSTC_RELEASE_CHANNEL={}", rustc_tools_util::get_channel() ); }