#[derive(Deserialize)]
struct Toml {
package: Package,
}
#[derive(Deserialize)]
struct Package {
version: String,
}
fn main() {
println!("cargo:rerun-if-changed=Cargo.toml");
println!(
"cargo:rustc-env=CARGO_PKG_VERSION={}",
toml::from_str::<Toml>(&std::fs::read_to_string("Cargo.toml").expect("Cannot Cargo.toml."))
.expect("Cannot toml.")
.package
.version
);
}
use serde::Deserialize;