From 0329a644f888b96f27cd5a6e5bc19a114ffd095d Mon Sep 17 00:00:00 2001
From: Tim Schumacher <timschumi@gmx.de>
Date: Sat, 23 Jul 2022 21:31:49 +0200
Subject: [PATCH] chmod: Port to ArgsParser

---
 Userland/Utilities/chmod.cpp | 28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/Userland/Utilities/chmod.cpp b/Userland/Utilities/chmod.cpp
index 5929d931e0..95019b49e9 100644
--- a/Userland/Utilities/chmod.cpp
+++ b/Userland/Utilities/chmod.cpp
@@ -6,33 +6,29 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/Format.h>
-#include <AK/Optional.h>
-#include <AK/String.h>
-#include <AK/StringUtils.h>
 #include <AK/Vector.h>
+#include <LibCore/ArgsParser.h>
 #include <LibCore/FilePermissionsMask.h>
 #include <LibCore/System.h>
 #include <LibMain/Main.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/stat.h>
 
 ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
     TRY(Core::System::pledge("stdio rpath fattr"));
 
-    if (arguments.strings.size() < 3) {
-        warnln("usage: chmod <octal-mode> <path...>");
-        warnln("       chmod [[ugoa][+-=][rwx...],...] <path...>");
-        return 1;
-    }
+    StringView mode;
+    Vector<StringView> paths;
 
-    auto mask = TRY(Core::FilePermissionsMask::parse(arguments.strings[1]));
+    Core::ArgsParser args_parser;
+    args_parser.add_positional_argument(mode, "File mode in octal or symbolic notation", "mode");
+    args_parser.add_positional_argument(paths, "Paths to file", "paths");
+    args_parser.parse(arguments);
 
-    for (size_t i = 2; i < arguments.strings.size(); ++i) {
-        auto current_access = TRY(Core::System::stat(arguments.strings[i]));
-        TRY(Core::System::chmod(arguments.strings[i], mask.apply(current_access.st_mode)));
+    auto mask = TRY(Core::FilePermissionsMask::parse(mode));
+
+    for (auto const& path : paths) {
+        auto current_access = TRY(Core::System::stat(path));
+        TRY(Core::System::chmod(path, mask.apply(current_access.st_mode)));
     }
 
     return 0;