mirror of https://github.com/rwf2/Rocket.git
61 lines
2.3 KiB
Rust
61 lines
2.3 KiB
Rust
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//! This tiny build script ensures that rocket is not compiled with an
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//! incompatible version of rust.
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extern crate ansi_term;
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extern crate version_check;
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use ansi_term::Colour::{Red, Yellow, Blue, White};
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use version_check::{is_nightly, is_min_version};
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// Specifies the minimum nightly version needed to compile Rocket.
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const MIN_VERSION: &'static str = "1.16.0-nightly";
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// Convenience macro for writing to stderr.
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macro_rules! printerr {
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($($arg:tt)*) => ({
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use std::io::prelude::*;
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write!(&mut ::std::io::stderr(), "{}\n", format_args!($($arg)*))
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.expect("Failed to write to stderr.")
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})
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}
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fn main() {
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let (ok_nightly, ok_version) = (is_nightly(), is_min_version(MIN_VERSION));
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let print_version_err = |version: &str| {
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printerr!("{} {}. {} {}.",
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White.paint("Installed version is:"),
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Yellow.paint(version),
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White.paint("Minimum required:"),
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Yellow.paint(MIN_VERSION));
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};
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if let (Some(is_nightly), Some((ok_version, version))) = (ok_nightly, ok_version) {
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if !is_nightly {
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printerr!("{} {}",
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Red.bold().paint("Error:"),
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White.paint("Rocket requires a nightly version of Rust."));
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print_version_err(&*version);
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printerr!("{}{}{}",
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Blue.paint("See the getting started guide ("),
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White.paint("https://rocket.rs/guide/getting-started/"),
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Blue.paint(") for more information."));
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panic!("Aborting compilation due to incompatible compiler.")
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}
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if !ok_version {
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printerr!("{} {}",
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Red.bold().paint("Error:"),
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White.paint("Rocket requires a newer version of rustc."));
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printerr!("{}{}{}",
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Blue.paint("Use `"),
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White.paint("rustup update"),
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Blue.paint("` or your preferred method to update Rust."));
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print_version_err(&*version);
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panic!("Aborting compilation due to incompatible compiler.")
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}
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} else {
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println!("cargo:warning={}", "Rocket was unable to check rustc compatibility.");
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println!("cargo:warning={}", "Build may fail due to incompatible rustc version.");
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}
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}
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