From 8a8b16c655778e19687cb648f729ffc8886ffc95 Mon Sep 17 00:00:00 2001
From: Matthias Langhard <matthias.langhard@novaloop.ch>
Date: Thu, 4 Nov 2021 21:13:40 +0100
Subject: [PATCH] feat: implements better commandline args parsing with
 '--version' and '--help' outputs

---
 src/Cli/Cli.csproj          |  4 +++-
 src/Cli/Models/CliParams.cs | 10 ++++++++++
 src/Cli/Program.cs          | 10 ++++++++--
 3 files changed, 21 insertions(+), 3 deletions(-)
 create mode 100644 src/Cli/Models/CliParams.cs

diff --git a/src/Cli/Cli.csproj b/src/Cli/Cli.csproj
index 2c9a5ac..830fdaa 100644
--- a/src/Cli/Cli.csproj
+++ b/src/Cli/Cli.csproj
@@ -6,10 +6,11 @@
         <RootNamespace>Cli</RootNamespace>
         <PackAsTool>true</PackAsTool>
         <ToolCommandName>update-tag</ToolCommandName>
+        <AssemblyTitle>update-tag</AssemblyTitle>
         <PackageId>Novaloop.UpdateTag</PackageId>
         <title>Updates the tag of a repo to the next chosen version according the semver symantic.</title>
         <PackageTags>semver;update-tag;tag;git</PackageTags>
-        <Version>0.4.0</Version>
+        <Version>0.5.0</Version>
         <Authors>Matthias Langhard</Authors>
         <Company>Novaloop AG</Company>
         <PackageProjectUrl>https://gitlab.com/novaloop-oss/novaloop.update-tag</PackageProjectUrl>
@@ -18,6 +19,7 @@
 
 
     <ItemGroup>
+        <PackageReference Include="CommandLineParser" Version="2.8.0"/>
         <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="5.0.2"/>
         <PackageReference Include="Microsoft.Extensions.Hosting" Version="5.0.0"/>
         <PackageReference Include="Spectre.Console" Version="0.42.0"/>
diff --git a/src/Cli/Models/CliParams.cs b/src/Cli/Models/CliParams.cs
new file mode 100644
index 0000000..9a77b8c
--- /dev/null
+++ b/src/Cli/Models/CliParams.cs
@@ -0,0 +1,10 @@
+using CommandLine;
+
+namespace Cli.Models
+{
+    public class CliParams
+    {
+        [Option('r', "repository-path", Required = false, HelpText = "Run update-tag on a git repository other than the current directory.")]
+        public string RepositoryPath { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Cli/Program.cs b/src/Cli/Program.cs
index 869d98b..77722c9 100644
--- a/src/Cli/Program.cs
+++ b/src/Cli/Program.cs
@@ -1,7 +1,8 @@
 using System;
-using System.Linq;
 using System.Threading.Tasks;
 using Application;
+using Cli.Models;
+using CommandLine;
 using Infrastructure;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
@@ -21,9 +22,14 @@ namespace Cli
                 .ServiceProvider
                 .GetRequiredService<AppRunner>();
 
-            await appRunner.Run(args.FirstOrDefault() ?? Environment.CurrentDirectory);
+            await Parser.Default
+                .ParseArguments<CliParams>(args)
+                .WithParsedAsync(
+                    async options => { await appRunner.Run(options.RepositoryPath ?? Environment.CurrentDirectory); }
+                );
         }
 
+
         private static IHostBuilder CreateHostBuilder()
         {
             return Host.CreateDefaultBuilder()