From d1b30d2a515fb4bf152ddb66b285ac5a3d05ee6d Mon Sep 17 00:00:00 2001
From: Paul Irwin <paulirwin@gmail.com>
Date: Sat, 19 Aug 2023 19:21:01 -0600
Subject: [PATCH] Upgrade System.CommandLine to latest version

---
 Colibri/Colibri.csproj | 2 +-
 Colibri/Program.cs     | 9 ++++-----
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/Colibri/Colibri.csproj b/Colibri/Colibri.csproj
index 913e3e9..346c879 100644
--- a/Colibri/Colibri.csproj
+++ b/Colibri/Colibri.csproj
@@ -10,7 +10,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="System.CommandLine" Version="2.0.0-beta1.21308.1" />
+		<PackageReference Include="System.CommandLine" Version="2.0.0-beta4.22272.1" />
 	</ItemGroup>
 
 	<ItemGroup>
diff --git a/Colibri/Program.cs b/Colibri/Program.cs
index c348368..9b457dd 100644
--- a/Colibri/Program.cs
+++ b/Colibri/Program.cs
@@ -1,5 +1,4 @@
 using System.CommandLine;
-using System.CommandLine.Invocation;
 using System.Reflection;
 using Antlr4.Runtime;
 using Colibri.Core;
@@ -10,12 +9,14 @@ public class Program
 {
     public static int Main(string[] args)
     {
+        var fileOption = new Option<FileInfo>("--file", "A Colibri Lisp file to execute.");
+        
         var rootCommand = new RootCommand("A modern Lisp-based language in .NET.")
         {
-            new Option<FileInfo>("--file", "A Colibri Lisp file to execute."),
+            fileOption,
         };
 
-        rootCommand.Handler = CommandHandler.Create<FileInfo?>(FileHandler);
+        rootCommand.SetHandler(FileHandler, fileOption);
 
         return rootCommand.Invoke(args);
     }
@@ -157,8 +158,6 @@ private static void PrintException(Exception ex)
     private static void PrintSystemInfo()
     {
         Console.WriteLine($"Colibri Lisp v{typeof(Program).Assembly.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion ?? "Unknown"}");
-
-        Console.WriteLine($".NET {Environment.Version}, {Environment.OSVersion}");
             
         Console.WriteLine();
     }