From 4e02b204efc5e63ca109ee59125febfbd173e6b2 Mon Sep 17 00:00:00 2001
From: Michel Hermier <michel.hermier@gmail.com>
Date: Thu, 20 Jan 2022 22:07:26 +0100
Subject: [PATCH] rev: Port to LibMain

---
 Userland/Utilities/CMakeLists.txt |  1 +
 Userland/Utilities/rev.cpp        | 16 ++++++----------
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/Userland/Utilities/CMakeLists.txt b/Userland/Utilities/CMakeLists.txt
index 0dd3e06f47..0da531fca6 100644
--- a/Userland/Utilities/CMakeLists.txt
+++ b/Userland/Utilities/CMakeLists.txt
@@ -144,6 +144,7 @@ target_link_libraries(pmemdump LibMain)
 target_link_libraries(pro LibMain LibProtocol)
 target_link_libraries(ps LibMain)
 target_link_libraries(pwd LibMain)
+target_link_libraries(rev LibMain)
 target_link_libraries(run-tests LibRegex)
 target_link_libraries(shot LibGUI)
 target_link_libraries(sql LibLine LibSQL LibIPC)
diff --git a/Userland/Utilities/rev.cpp b/Userland/Utilities/rev.cpp
index 5fb4498ad7..b2d3225c17 100644
--- a/Userland/Utilities/rev.cpp
+++ b/Userland/Utilities/rev.cpp
@@ -5,23 +5,22 @@
  */
 
 #include <LibCore/ArgsParser.h>
+#include <LibCore/System.h>
+#include <LibMain/Main.h>
 #include <errno.h>
 #include <string.h>
 #include <unistd.h>
 
-int main(int argc, char** argv)
+ErrorOr<int> serenity_main(Main::Arguments arguments)
 {
-    if (pledge("stdio rpath", nullptr) < 0) {
-        perror("pledge");
-        return 1;
-    }
+    TRY(Core::System::pledge("stdio rpath"sv));
 
     Vector<StringView> paths;
     Core::ArgsParser args_parser;
 
     args_parser.set_general_help("Concatente files to stdout with each line in reverse.");
     args_parser.add_positional_argument(paths, "File path", "path", Core::ArgsParser::Required::No);
-    args_parser.parse(argc, argv);
+    args_parser.parse(arguments);
 
     Vector<FILE*> streams;
     auto num_paths = paths.size();
@@ -49,10 +48,7 @@ int main(int argc, char** argv)
         }
     };
 
-    if (pledge("stdio", nullptr) < 0) {
-        perror("pledge");
-        return 1;
-    }
+    TRY(Core::System::pledge("stdio"sv));
 
     for (auto* stream : streams) {
         for (;;) {