From 9815ad556a81a2a5e332f1c152afdc4447a23b69 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Mon, 29 Nov 2021 22:23:27 +0100
Subject: [PATCH] fortune: Port to LibMain :^)

---
 Userland/Utilities/CMakeLists.txt |  1 +
 Userland/Utilities/fortune.cpp    | 37 +++++++++----------------------
 2 files changed, 12 insertions(+), 26 deletions(-)

diff --git a/Userland/Utilities/CMakeLists.txt b/Userland/Utilities/CMakeLists.txt
index b6a6c560a7..a9b9a66390 100644
--- a/Userland/Utilities/CMakeLists.txt
+++ b/Userland/Utilities/CMakeLists.txt
@@ -74,6 +74,7 @@ target_link_libraries(echo LibMain)
 target_link_libraries(expr LibRegex)
 target_link_libraries(fdtdump LibDeviceTree)
 target_link_libraries(file LibGfx LibIPC LibCompress)
+target_link_libraries(fortune LibMain)
 target_link_libraries(functrace LibDebug LibX86)
 target_link_libraries(gml-format LibGUI)
 target_link_libraries(grep LibRegex)
diff --git a/Userland/Utilities/fortune.cpp b/Userland/Utilities/fortune.cpp
index 0b9fe4b9e2..0475dd955c 100644
--- a/Userland/Utilities/fortune.cpp
+++ b/Userland/Utilities/fortune.cpp
@@ -13,6 +13,8 @@
 #include <LibCore/ArgsParser.h>
 #include <LibCore/DateTime.h>
 #include <LibCore/File.h>
+#include <LibCore/System.h>
+#include <LibMain/Main.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
@@ -69,47 +71,30 @@ static Vector<Quote> parse_all(const JsonArray& array)
     return quotes;
 }
 
-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"));
 
     const char* path = "/res/fortunes.json";
 
     Core::ArgsParser args_parser;
     args_parser.set_general_help("Open a fortune cookie, receive a free quote for the day!");
     args_parser.add_positional_argument(path, "Path to JSON file with quotes (/res/fortunes.json by default)", "path", Core::ArgsParser::Required::No);
-    args_parser.parse(argc, argv);
+    args_parser.parse(arguments);
 
-    auto file = Core::File::construct(path);
-    if (!file->open(Core::OpenMode::ReadOnly)) {
-        warnln("Couldn't open {} for reading: {}", path, file->error_string());
-        return 1;
-    }
+    auto file = TRY(Core::File::open(path, Core::OpenMode::ReadOnly));
 
-    if (pledge("stdio", nullptr) < 0) {
-        perror("pledge");
-        return 1;
-    }
-    if (unveil(nullptr, nullptr) < 0) {
-        perror("unveil");
-        return 1;
-    }
+    TRY(Core::System::pledge("stdio"));
+    TRY(Core::System::unveil(nullptr, nullptr));
 
     auto file_contents = file->read_all();
-    auto json = JsonValue::from_string(file_contents);
-    if (json.is_error()) {
-        warnln("Couldn't parse {} as JSON", path);
-        return 1;
-    }
-    if (!json.value().is_array()) {
+    auto json = TRY(JsonValue::from_string(file_contents));
+    if (!json.is_array()) {
         warnln("{} does not contain an array of quotes", path);
         return 1;
     }
 
-    const auto quotes = parse_all(json.value().as_array());
+    const auto quotes = parse_all(json.as_array());
     if (quotes.is_empty()) {
         warnln("{} does not contain any valid quotes", path);
         return 1;