custom version string, close #113

Author: neuecc

ReadMe.md

@@ -243,7 +243,7 @@ To add aliases to parameters, list the aliases separated by `|` before the comma
 
 Unfortunately, due to current C# specifications, lambda expressions and [local functions do not support document comments](https://github.com/dotnet/csharplang/issues/2110), so a class is required.
 
-In addition to `-h|--help`, there is another special built-in option: `--version`. This displays the `AssemblyInformationalVersion` or `AssemblyVersion`.
+In addition to `-h|--help`, there is another special built-in option: `--version`. In default, it displays the `AssemblyInformationalVersion` or `AssemblyVersion`. You can configure version string by `ConsoleApp.Version`, for example `ConsoleApp.Version = "2001.9.3f14-preview2";`.
 
 Command
 ---

sandbox/GeneratorSandbox/Program.cs

@@ -2,6 +2,8 @@
 using System.Diagnostics.CodeAnalysis;
 using ConsoleAppFramework;
 
+
+
 args = ["show", "--aaa", "a", "--value", "10.2"];
 
 var app = ConsoleApp.Create();

src/ConsoleAppFramework/ConsoleAppGenerator.cs

@@ -138,6 +138,7 @@ internal static partial class ConsoleApp
     public static IServiceProvider? ServiceProvider { get; set; }
     public static TimeSpan Timeout { get; set; } = TimeSpan.FromSeconds(5);
     public static System.Text.Json.JsonSerializerOptions? JsonSerializerOptions { get; set; }
+    public static string? Version { get; set; }
 
     static Action<string>? logAction;
     public static Action<string> Log
@@ -321,6 +322,12 @@ static bool TryShowHelpOrVersion(ReadOnlySpan<string> args, int requiredParamete
 
     static void ShowVersion()
     {
+        if (Version != null)
+        {
+            Log(Version);
+            return;
+        }
+
         var asm = Assembly.GetEntryAssembly();
         var version = "1.0.0";
         var infoVersion = asm!.GetCustomAttribute<AssemblyInformationalVersionAttribute>();

tests/ConsoleAppFramework.GeneratorTests/HelpTest.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
 using Xunit.Abstractions;
@@ -11,6 +12,31 @@ public class HelpTest(ITestOutputHelper output)
 {
     VerifyHelper verifier = new VerifyHelper(output, "CAF");
 
+    [Fact]
+    public void Version()
+    {
+        var version = Assembly.GetEntryAssembly()?.GetCustomAttribute<AssemblyInformationalVersionAttribute>()?.InformationalVersion ?? "1.0.0";
+
+        verifier.Execute(code: $$"""
+ConsoleApp.Run(args, (int x, int y) => { });
+""",
+    args: "--version",
+    expected: $$"""
+{{version}}
+
+""");
+        // custom
+        verifier.Execute(code: $$"""
+ConsoleApp.Version = "9999.9999999abcdefg";
+ConsoleApp.Run(args, (int x, int y) => { });
+""",
+   args: "--version",
+   expected: """
+9999.9999999abcdefg
+
+""");
+    }
+
     [Fact]
     public void Run()
     {