coreutils: --help args is same with --help

src/bin/coreutils.rs

@@ -8,7 +8,6 @@ use coreutils::validation;
 use itertools::Itertools as _;
 use std::cmp;
 use std::ffi::OsString;
-use std::io::{self, Write};
 use std::process;
 use uucore::Args;
 
@@ -106,26 +105,8 @@ fn main() {
                 process::exit(uumain(vec![util_os].into_iter().chain(args)));
             }
             None => {
+                // GNU coreutils --help string shows help for coreutils
                 if util == "--help" || util == "-h" {
-                    // see if they want help on a specific util
-                    if let Some(util_os) = args.next() {
-                        let Some(util) = util_os.to_str() else {
-                            validation::not_found(&util_os)
-                        };
-
-                        match utils.get(util) {
-                            Some(&(uumain, _)) => {
-                                let code = uumain(
-                                    vec![util_os, OsString::from("--help")]
-                                        .into_iter()
-                                        .chain(args),
-                                );
-                                io::stdout().flush().expect("could not flush stdout");
-                                process::exit(code);
-                            }
-                            None => validation::not_found(&util_os),
-                        }
-                    }
                     usage(&utils, binary_as_util);
                     process::exit(0);
                 } else if util.starts_with('-') {

tests/test_util_name.rs

@@ -26,6 +26,24 @@ fn init() {
     eprintln!("Setting UUTESTS_BINARY_PATH={TESTS_BINARY}");
 }
 
+#[test]
+fn test_coreutils_help_ignore_args() {
+    use std::process::Command;
+
+    let scenario = TestScenario::new("help_ignoring_args");
+    if !scenario.bin_path.exists() {
+        return;
+    }
+
+    let output = Command::new(&scenario.bin_path)
+        .arg("--help")
+        .arg("---")
+        .output()
+        .unwrap();
+
+    assert_eq!(output.status.code(), Some(0));
+}
+
 #[test]
 #[cfg(feature = "ls")]
 fn execution_phrase_double() {

util/fetch-gnu.sh

@@ -4,7 +4,9 @@ repo=https://github.com/coreutils/coreutils
 curl -L "${repo}/releases/download/v${ver}/coreutils-${ver}.tar.xz" | tar --strip-components=1 -xJf -
 
 # TODO stop backporting tests from master at GNU coreutils > $ver
-# backport = ()
-# for f in ${backport[@]}
-#  do curl -L ${repo}/raw/refs/heads/master/tests/$f > tests/$f
-# done
+ backport=(
+  misc/coreutils.sh
+)
+ for f in "${backport[@]}"
+  do curl -L ${repo}/raw/refs/heads/master/tests/$f > tests/$f
+ done