From 1a619a6df087f18801c70ba1fe52790fc5fbfd8a Mon Sep 17 00:00:00 2001
From: Bilal Fazlani <bilal_fazlani@external.mckinsey.com>
Date: Tue, 9 Jan 2018 21:38:29 +0530
Subject: [PATCH] Fixes #26 , Added version option.

Its on by default and can be turned off with settings
---
 CommandDotNet/AppCreator.cs           | 12 ++++++++++++
 CommandDotNet/Enums/MultiValueType.cs |  8 --------
 CommandDotNet/Models/AppSettings.cs   |  2 ++
 3 files changed, 14 insertions(+), 8 deletions(-)
 delete mode 100644 CommandDotNet/Enums/MultiValueType.cs

diff --git a/CommandDotNet/AppCreator.cs b/CommandDotNet/AppCreator.cs
index 76a8587aa..d4c683bc8 100644
--- a/CommandDotNet/AppCreator.cs
+++ b/CommandDotNet/AppCreator.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics;
 using System.Reflection;
 using CommandDotNet.Attributes;
 using CommandDotNet.MicrosoftCommandLineUtils;
@@ -30,6 +31,8 @@ public CommandLineApplication CreateApplication(
             {
                 string rootName = $"dotnet {Assembly.GetEntryAssembly().GetName().Name}.dll";
                 app = new CommandLineApplication(throwOnUnexpectedArg: _appSettings.ThrowOnUnexpectedArgument) { Name = rootName };
+                
+                AddVersion(app);
             }
             else
             {
@@ -59,5 +62,14 @@ public CommandLineApplication CreateApplication(
 
             return app;
         }
+
+        private void AddVersion(CommandLineApplication app)
+        {
+            if (_appSettings.EnableVersionOption)
+            {
+                FileVersionInfo fvi = FileVersionInfo.GetVersionInfo(Assembly.GetEntryAssembly().Location);
+                app.VersionOption("-v | --version", shortFormVersion: fvi.ProductVersion);
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/CommandDotNet/Enums/MultiValueType.cs b/CommandDotNet/Enums/MultiValueType.cs
deleted file mode 100644
index 43d970a46..000000000
--- a/CommandDotNet/Enums/MultiValueType.cs
+++ /dev/null
@@ -1,8 +0,0 @@
-namespace CommandDotNet
-{
-    public enum MultiValueType
-    {
-        MultipleArguments = 0,
-        CommaSeparated = 1
-    }
-}
\ No newline at end of file
diff --git a/CommandDotNet/Models/AppSettings.cs b/CommandDotNet/Models/AppSettings.cs
index 6a66a753d..16929f315 100644
--- a/CommandDotNet/Models/AppSettings.cs
+++ b/CommandDotNet/Models/AppSettings.cs
@@ -20,6 +20,8 @@ public AppSettings()
         public ArgumentMode MethodArgumentMode { get; set; } = ArgumentMode.Parameter;
 
         public Case Case { get; set; } = Case.DontChange;
+
+        public bool EnableVersionOption { get; set; } = true;
     }
 
     public enum ArgumentMode