uutils · sylvestre · Apr 25, 2024 · Mar 31, 2024 · Mar 31, 2024 · Mar 31, 2024
diff --git a/src/uu/hostid/src/hostid.rs b/src/uu/hostid/src/hostid.rs
@@ -19,7 +19,7 @@ extern "C" {
 
 #[uucore::main]
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
-    uu_app().get_matches_from(args);
+    uu_app().try_get_matches_from(args)?;
     hostid();
     Ok(())
 }

diff --git a/src/uu/pr/src/pr.rs b/src/uu/pr/src/pr.rs
@@ -386,13 +386,7 @@ pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let opt_args = recreate_arguments(&args);
 
     let mut command = uu_app();
-    let matches = match command.try_get_matches_from_mut(opt_args) {
-        Ok(m) => m,
-        Err(e) => {
-            e.print()?;
-            return Ok(());
-        }
-    };
+    let matches = command.try_get_matches_from_mut(opt_args)?;
 
     let mut files = matches
         .get_many::<String>(options::FILES)

diff --git a/src/uu/tee/src/tee.rs b/src/uu/tee/src/tee.rs
@@ -89,6 +89,16 @@ pub fn uu_app() -> Command {
         .override_usage(format_usage(USAGE))
         .after_help(AFTER_HELP)
         .infer_long_args(true)
+        // Since we use value-specific help texts for "--output-error", clap's "short help" and "long help" differ.
+        // However, this is something that the GNU tests explicitly test for, so we *always* show the long help instead.
+        .disable_help_flag(true)
+        .arg(
+            Arg::new("--help")
+                .short('h')
+                .long("help")
+                .help("Print help")
+                .action(ArgAction::HelpLong)
+        )
         .arg(
             Arg::new(options::APPEND)
                 .long(options::APPEND)

diff --git a/tests/by-util/test_hostid.rs b/tests/by-util/test_hostid.rs
@@ -10,3 +10,12 @@ fn test_normal() {
     let re = Regex::new(r"^[0-9a-f]{8}").unwrap();
     new_ucmd!().succeeds().stdout_matches(&re);
 }
+
+#[test]
+fn test_invalid_flag() {
+    new_ucmd!()
+        .arg("--invalid-argument")
+        .fails()
+        .no_stdout()
+        .code_is(1);
+}
diff --git a/tests/by-util/test_pr.rs b/tests/by-util/test_pr.rs
@@ -43,6 +43,15 @@ fn valid_last_modified_template_vars(from: DateTime<Utc>) -> Vec<Vec<(String, St
         .collect()
 }
 
+#[test]
+fn test_invalid_flag() {
+    new_ucmd!()
+        .arg("--invalid-argument")
+        .fails()
+        .no_stdout()
+        .code_is(1);
+}
+
 #[test]
 fn test_without_any_options() {
     let test_file_path = "test_one_page.log";

diff --git a/tests/by-util/test_tee.rs b/tests/by-util/test_tee.rs
@@ -18,6 +18,22 @@ fn test_invalid_arg() {
     new_ucmd!().arg("--definitely-invalid").fails().code_is(1);
 }
 
+#[test]
+fn test_short_help_is_long_help() {
+    // I can't believe that this test is necessary.
+    let help_short = new_ucmd!()
+        .arg("-h")
+        .succeeds()
+        .no_stderr()
+        .stdout_str()
+        .to_owned();
+    new_ucmd!()
+        .arg("--help")
+        .succeeds()
+        .no_stderr()
+        .stdout_is(help_short);
+}
+
 #[test]
 fn test_tee_processing_multiple_operands() {
     // POSIX says: "Processing of at least 13 file operands shall be supported."

diff --git a/util/build-gnu.sh b/util/build-gnu.sh
@@ -279,14 +279,11 @@ sed -i "s|\$PACKAGE_VERSION|[0-9]*|g" tests/rm/fail-2eperm.sh tests/mv/sticky-to
 # with the option -/ is used, clap is returning a better error than GNU's. Adjust the GNU test
 sed -i -e "s~  grep \" '\*/'\*\" err || framework_failure_~  grep \" '*-/'*\" err || framework_failure_~" tests/misc/usage_vs_getopt.sh
 sed -i -e "s~  sed -n \"1s/'\\\/'/'OPT'/p\" < err >> pat || framework_failure_~  sed -n \"1s/'-\\\/'/'OPT'/p\" < err >> pat || framework_failure_~" tests/misc/usage_vs_getopt.sh
-# Ignore some binaries (not built)
-# And change the default error code to 2
-# see issue #3331 (clap limitation).
-# Upstream returns 1 for most of the program. We do for cp, truncate & pr
-# So, keep it as it
-sed -i -e "s/rcexp=1$/rcexp=2\n  case \"\$prg\" in chcon|runcon) return;; esac/" -e "s/rcexp=125 ;;/rcexp=2 ;;\ncp|truncate|pr) rcexp=1;;/" tests/misc/usage_vs_getopt.sh
+# Ignore runcon, it needs some extra attention
+# For all other tools, we want drop-in compatibility, and that includes the exit code.
+sed -i -e "s/rcexp=1$/rcexp=1\n  case \"\$prg\" in runcon|stdbuf) return;; esac/" tests/misc/usage_vs_getopt.sh
 # GNU has option=[SUFFIX], clap is <SUFFIX>
-sed -i -e "s/cat opts/sed -i -e \"s| <.\*>$||g\" opts/" tests/misc/usage_vs_getopt.sh
+sed -i -e "s/cat opts/sed -i -e \"s| <.\*$||g\" opts/" tests/misc/usage_vs_getopt.sh
 # for some reasons, some stuff are duplicated, strip that
 sed -i -e "s/provoked error./provoked error\ncat pat |sort -u > pat/" tests/misc/usage_vs_getopt.sh