Add CLI module and refactor app initialization

Introduce `CliModule` for dependency registration, implementing an `IGitVersionApp` interface to decouple app logic. Refactor `Program.cs` to use the new interface and modularize service initialization, improving maintainability and scalability.

Author: arturcic

new-cli/GitVersion.Cli/CliModule.cs

@@ -0,0 +1,12 @@
+using GitVersion.Infrastructure;
+using GitVersion.SystemCommandline;
+
+namespace GitVersion;
+
+public class CliModule : IGitVersionModule
+{
+    public void RegisterTypes(IContainerRegistrar services)
+        => services
+            .AddSingleton<IGitVersionAppRunner, GitVersionAppRunner>()
+            .AddLogging();
+}

new-cli/GitVersion.Cli/IGitVersionAppRunner.cs

@@ -0,0 +1,6 @@
+namespace GitVersion;
+
+internal interface IGitVersionAppRunner
+{
+    Task<int> RunAsync(string[] args, CancellationToken cancellationToken);
+}

new-cli/GitVersion.Cli/Program.cs

@@ -8,26 +8,25 @@
 {
     new CoreModule(),
     new LibGit2SharpCoreModule(),
-    new CommandsModule()
+    new CommandsModule(),
+    new CliModule()
 };
 
 var cts = new CancellationTokenSource();
 Console.CancelKeyPress += (_, _) => cts.Cancel();
 
 using var serviceProvider = RegisterModules(modules);
-var app = serviceProvider.GetRequiredService<GitVersionApp>();
-var result = await app.RunAsync(args, cts.Token).ConfigureAwait(false);
+var app = serviceProvider.GetRequiredService<IGitVersionAppRunner>();
 
+var result = 0;
+result = await app.RunAsync(args, cts.Token).ConfigureAwait(false);
 if (!Console.IsInputRedirected) Console.ReadKey();
-
 return result;
 
 static IContainer RegisterModules(IEnumerable<IGitVersionModule> gitVersionModules)
 {
     var serviceProvider = new ContainerRegistrar()
         .RegisterModules(gitVersionModules)
-        .AddSingleton<GitVersionApp>()
-        .AddLogging()
         .Build();
 
     return serviceProvider;

new-cli/GitVersion.Cli/GitVersionApp.cs renamed to new-cli/GitVersion.Cli/SystemCommandline/GitVersionAppRunner.cs

@@ -3,10 +3,10 @@
 using GitVersion.Infrastructure;
 using Serilog.Events;
 
-namespace GitVersion;
+namespace GitVersion.SystemCommandline;
 
 // ReSharper disable once ClassNeverInstantiated.Global
-internal class GitVersionApp(RootCommandImpl rootCommand)
+internal class GitVersionAppRunner(RootCommandImpl rootCommand) : IGitVersionAppRunner
 {
     private readonly RootCommandImpl _rootCommand = rootCommand.NotNull();