Merge pull request #5446 from cakebaker/ls_try_get_matches_from

ls: use try_get_matches_from instead of get_matches_from

src/uu/ls/src/ls.rs

@@ -168,7 +168,8 @@ enum LsError {
     IOError(std::io::Error),
     IOErrorContext(std::io::Error, PathBuf, bool),
     BlockSizeParseError(String),
-    ConflictingArgumentDired(),
+    ConflictingArgumentDired,
+    DiredAndZeroAreIncompatible,
     AlreadyListedError(PathBuf),
     TimeStyleParseError(String, Vec<String>),
 }
@@ -181,7 +182,8 @@ impl UError for LsError {
             Self::IOErrorContext(_, _, false) => 1,
             Self::IOErrorContext(_, _, true) => 2,
             Self::BlockSizeParseError(_) => 1,
-            Self::ConflictingArgumentDired() => 1,
+            Self::ConflictingArgumentDired => 1,
+            Self::DiredAndZeroAreIncompatible => 2,
             Self::AlreadyListedError(_) => 2,
             Self::TimeStyleParseError(_, _) => 2,
         }
@@ -196,10 +198,12 @@ impl Display for LsError {
             Self::BlockSizeParseError(s) => {
                 write!(f, "invalid --block-size argument {}", s.quote())
             }
-            Self::ConflictingArgumentDired() => {
+            Self::ConflictingArgumentDired => {
                 write!(f, "--dired requires --format=long")
             }
-
+            Self::DiredAndZeroAreIncompatible => {
+                write!(f, "--dired and --zero are incompatible")
+            }
             Self::TimeStyleParseError(s, possible_time_styles) => {
                 write!(
                     f,
@@ -966,7 +970,10 @@ impl Config {
 
         let dired = options.get_flag(options::DIRED);
         if dired && format != Format::Long {
-            return Err(Box::new(LsError::ConflictingArgumentDired()));
+            return Err(Box::new(LsError::ConflictingArgumentDired));
+        }
+        if dired && format == Format::Long && options.get_flag(options::ZERO) {
+            return Err(Box::new(LsError::DiredAndZeroAreIncompatible));
         }
 
         let dereference = if options.get_flag(options::dereference::ALL) {
@@ -1027,7 +1034,7 @@ impl Config {
 pub fn uumain(args: impl uucore::Args) -> UResult<()> {
     let command = uu_app();
 
-    let matches = command.get_matches_from(args);
+    let matches = command.try_get_matches_from(args)?;
 
     let config = Config::from(&matches)?;
 
@@ -1142,7 +1149,6 @@ pub fn uu_app() -> Command {
         .arg(
             Arg::new(options::ZERO)
                 .long(options::ZERO)
-                .conflicts_with(options::DIRED)
                 .overrides_with(options::ZERO)
                 .help("List entries separated by ASCII NUL characters.")
                 .action(ArgAction::SetTrue),

tests/by-util/test_ls.rs

@@ -3569,6 +3569,20 @@ fn test_ls_dired_incompatible() {
         .stderr_contains("--dired requires --format=long");
 }
 
+#[test]
+fn test_ls_dired_and_zero_are_incompatible() {
+    let scene = TestScenario::new(util_name!());
+
+    scene
+        .ucmd()
+        .arg("--dired")
+        .arg("-l")
+        .arg("--zero")
+        .fails()
+        .code_is(2)
+        .stderr_contains("--dired and --zero are incompatible");
+}
+
 #[test]
 fn test_ls_dired_recursive() {
     let scene = TestScenario::new(util_name!());