Rocket/core/lib/build.rs

26 lines
962 B
Rust

//! Ensures Rocket isn't compiled with an incompatible version of Rust.
use yansi::{Paint, Color::{Red, Yellow}};
const MIN_VERSION: &'static str = "1.45.0";
macro_rules! err {
($version:expr, $msg:expr) => (
eprintln!("{} {}", Red.paint("Error:").bold(), Paint::new($msg).bold());
eprintln!("Installed version: {}", Yellow.paint(format!("{}", $version)));
eprintln!("Minimum required: {}", Yellow.paint(format!("{}", MIN_VERSION)));
)
}
fn main() {
if let Some(version) = version_check::Version::read() {
if !version.at_least(MIN_VERSION) {
err!(version, "Rocket requires a more recent version of rustc.");
panic!("Aborting compilation due to incompatible compiler.")
}
} else {
println!("cargo:warning={}", "Rocket was unable to check rustc compiler compatibility.");
println!("cargo:warning={}", "Build may fail due to incompatible rustc version.");
}
}