From 51b4c240ed006a8279bd94e9b7ed5df67086c86e Mon Sep 17 00:00:00 2001 From: mo8it Date: Mon, 25 Mar 2024 00:30:01 +0100 Subject: [PATCH] Use `which` instead of running `rustc --version` --- Cargo.lock | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 1 + src/main.rs | 16 ++-------------- 3 files changed, 57 insertions(+), 14 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 3950c476..1bfd301f 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -195,6 +195,12 @@ version = "0.3.3" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10" +[[package]] +name = "either" +version = "1.10.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "11157ac094ffbdde99aa67b23417ebdd801842852b500e395a45a9c0aac03e4a" + [[package]] name = "encode_unicode" version = "0.3.6" @@ -207,6 +213,16 @@ version = "1.0.1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5" +[[package]] +name = "errno" +version = "0.3.8" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "a258e46cdc063eb8519c00b9fc845fc47bcfca4130e2f08e88665ceda8474245" +dependencies = [ + "libc", + "windows-sys 0.52.0", +] + [[package]] name = "filetime" version = "0.2.23" @@ -354,6 +370,12 @@ version = "0.2.153" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd" +[[package]] +name = "linux-raw-sys" +version = "0.4.13" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "01cda141df6706de531b6c46c3a33ecca755538219bd484262fa09410c13539c" + [[package]] name = "log" version = "0.4.21" @@ -521,6 +543,19 @@ version = "0.8.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f" +[[package]] +name = "rustix" +version = "0.38.32" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "65e04861e65f21776e67888bfbea442b3642beaa0138fdb1dd7a84a52dffdb89" +dependencies = [ + "bitflags 2.4.2", + "errno", + "libc", + "linux-raw-sys", + "windows-sys 0.52.0", +] + [[package]] name = "rustlings" version = "5.6.1" @@ -537,6 +572,7 @@ dependencies = [ "serde", "serde_json", "toml", + "which", ] [[package]] @@ -694,6 +730,18 @@ version = "0.11.0+wasi-snapshot-preview1" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423" +[[package]] +name = "which" +version = "6.0.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "8211e4f58a2b2805adfbefbc07bab82958fc91e3836339b1ab7ae32465dce0d7" +dependencies = [ + "either", + "home", + "rustix", + "winsafe", +] + [[package]] name = "winapi" version = "0.3.9" @@ -865,3 +913,9 @@ checksum = "dffa400e67ed5a4dd237983829e66475f0a4a26938c4b04c21baede6262215b8" dependencies = [ "memchr", ] + +[[package]] +name = "winsafe" +version = "0.0.19" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "d135d17ab770252ad95e9a872d365cf3090e3be864a34ab46f48555993efc904" diff --git a/Cargo.toml b/Cargo.toml index 218b7990..de65fc6e 100644 --- a/Cargo.toml +++ b/Cargo.toml @@ -19,6 +19,7 @@ regex = "1.10.3" serde_json = "1.0.114" serde = { version = "1.0.197", features = ["derive"] } toml = "0.8.10" +which = "6.0.1" [[bin]] name = "rustlings" diff --git a/src/main.rs b/src/main.rs index a06f0c56..f932631b 100644 --- a/src/main.rs +++ b/src/main.rs @@ -10,7 +10,7 @@ use std::ffi::OsStr; use std::fs; use std::io::{self, prelude::*}; use std::path::Path; -use std::process::{Command, Stdio}; +use std::process::Command; use std::sync::atomic::{AtomicBool, Ordering}; use std::sync::mpsc::{channel, RecvTimeoutError}; use std::sync::{Arc, Mutex}; @@ -100,7 +100,7 @@ fn main() { std::process::exit(1); } - if !rustc_exists() { + if which::which("rustc").is_err() { println!("We cannot find `rustc`."); println!("Try running `rustc --version` to diagnose your problem."); println!("For instructions on how to install Rust, check the README."); @@ -403,18 +403,6 @@ fn watch( } } -fn rustc_exists() -> bool { - Command::new("rustc") - .args(["--version"]) - .stdout(Stdio::null()) - .stderr(Stdio::null()) - .stdin(Stdio::null()) - .spawn() - .and_then(|mut child| child.wait()) - .map(|status| status.success()) - .unwrap_or(false) -} - const DEFAULT_OUT: &str = r#"Thanks for installing Rustlings! Is this your first time? Don't worry, Rustlings was made for beginners! We are