Commit 38c4579

fn check_lint_list() {

use std::{env, fs, path::PathBuf, process::Command, str};

type Result<T, E = Box<dyn std::error::Error>> = std::result::Result<T, E>;

fn assert_eq(expected_path: &str, actual: &str) -> Result<()> {

let manifest_dir = env::var_os("CARGO_MANIFEST_DIR")

.map(PathBuf::from)

.expect("CARGO_MANIFEST_DIR not set");

let expected_path = manifest_dir.join(expected_path);

let expected = fs::read_to_string(&expected_path)?;

if expected != actual {

if env::var_os("CI").map_or(false, |v| v == "true") {

panic!(

"assertion failed:\n\nEXPECTED:\n{0}\n{1}\n{0}\n\nACTUAL:\n{0}\n{2}\n{0}\n",

"-".repeat(60),

expected,

actual,

);

} else {

fs::write(&expected_path, actual)?;

}

}

Ok(())

}

(|| -> Result<()> {

let rustc = env::var_os("RUSTC").unwrap_or_else(|| "rustc".into());

let output = Command::new(rustc).args(&["-W", "help"]).output()?;

let new = str::from_utf8(&output.stdout)?;

assert_eq("tests/lint.txt", new)

})()

.unwrap_or_else(|e| panic!("{}", e));