mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-28 12:07:57 +00:00
Ximin Luo
b618d8f0b2
* Make build work with rustc 1.37 stable and RUSTC_BOOTSTRAP=1 * Bump versions to run CI
97 lines
2.8 KiB
Rust
97 lines
2.8 KiB
Rust
// Copyright 2019 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Substrate is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
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use std::{process::{Command, Stdio}, fs};
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use std::env;
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use tempfile::tempdir;
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/// Checks that all prerequisites are installed.
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///
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/// # Returns
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/// Returns `None` if everything was found and `Some(ERR_MSG)` if something could not be found.
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pub fn check() -> Option<&'static str> {
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if !rustc_stable_forced_to_nightly() && !check_nightly_installed(){
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return Some("Rust nightly not installed, please install it!")
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}
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if Command::new("wasm-gc")
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.stdout(Stdio::null())
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.stderr(Stdio::null())
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.status()
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.map(|s| !s.success()).unwrap_or(true)
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{
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return Some("`wasm-gc` not installed, please install it!")
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}
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check_wasm_toolchain_installed()
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}
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fn rustc_stable_forced_to_nightly() -> bool {
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env::var("RUSTC_BOOTSTRAP") == Ok("1".to_string())
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}
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fn check_nightly_installed() -> bool {
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let command = crate::get_nightly_cargo();
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command.is_nightly()
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}
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fn check_wasm_toolchain_installed() -> Option<&'static str> {
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let temp = tempdir().expect("Creating temp dir does not fail; qed");
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fs::create_dir_all(temp.path().join("src")).expect("Creating src dir does not fail; qed");
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let test_file = temp.path().join("src/lib.rs");
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let manifest_path = temp.path().join("Cargo.toml");
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fs::write(&manifest_path,
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r#"
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[package]
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name = "wasm-test"
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version = "1.0.0"
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edition = "2018"
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[lib]
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name = "wasm_test"
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crate-type = ["cdylib"]
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[workspace]
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"#,
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).expect("Writing wasm-test manifest does not fail; qed");
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fs::write(&test_file, "pub fn test() {}")
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.expect("Writing to the test file does not fail; qed");
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let err_msg = "Rust WASM toolchain not installed, please install it!";
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let manifest_path = manifest_path.display().to_string();
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crate::get_nightly_cargo()
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.command()
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.args(&["build", "--target=wasm32-unknown-unknown", "--manifest-path", &manifest_path])
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.output()
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.map_err(|_| err_msg)
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.and_then(|s|
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if s.status.success() {
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Ok(())
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} else {
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match String::from_utf8(s.stderr) {
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Ok(ref err) if err.contains("linker `rust-lld` not found") => {
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Err("`rust-lld` not found, please install it!")
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},
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_ => Err(err_msg)
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}
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}
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)
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.err()
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}
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