Surface decompiler version in both console and ps cmdlets (intended for user error reporting)

ICSharpCode.Decompiler.Console/Program.cs

@@ -17,6 +17,7 @@ namespace ICSharpCode.Decompiler.Console
 			// Older cmd line clients (for options reference): https://github.com/aerror2/ILSpy-For-MacOSX and https://github.com/andreif/ILSpyMono
 			var app = new CommandLineApplication();
 
+			app.LongVersionGetter = () => "ilspycmd " + typeof(FullTypeName).Assembly.GetName().Version.ToString();
 			app.HelpOption("-h|--help");
 			var inputAssemblyFileName = app.Argument("Assembly filename name", "The assembly that is being decompiled. This argument is mandatory.");
 			var projectOption = app.Option("-p|--project", "Decompile assembly as compilable project. This requires the output directory option.", CommandOptionType.NoValue);
@@ -31,6 +32,7 @@ namespace ICSharpCode.Decompiler.Console
 				// HACK : the CommandLineUtils package does not allow us to specify an argument as mandatory.
 				// Therefore we're implementing it as simple as possible.
 				if (inputAssemblyFileName.Value == null) {
+					app.ShowVersion();
 					app.ShowHint();
 					return -1;
 				}

ICSharpCode.Decompiler.Console/Publish.cmd

@@ -0,0 +1,3 @@
+dotnet publish -c release -r win7-x64
+dotnet publish -c release -r osx-x64
+dotnet publish -c release -r linux-x64

ICSharpCode.Decompiler.PowerShell/Demo.ps1

@@ -7,6 +7,9 @@ if ([string]::IsNullOrEmpty($basePath))
 $modulePath = $basePath + '\bin\Debug\netstandard2.0\ICSharpCode.Decompiler.Powershell.dll'
 
 Import-Module $modulePath
+$version = Get-DecompilerVersion
+Write-Output $version
+
 $decompiler = Get-Decompiler $modulePath
 
 $classes = Get-DecompiledTypes $decompiler -Types class

ICSharpCode.Decompiler.PowerShell/GetDecompilerVersion.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Management.Automation;
+using ICSharpCode.Decompiler.TypeSystem;
+
+namespace ICSharpCode.Decompiler.PowerShell
+{
+	[Cmdlet(VerbsCommon.Get, "DecompilerVersion")]
+	[OutputType(typeof(string))]
+	public class GetDecompilerVersion : PSCmdlet
+	{
+	    protected override void ProcessRecord()
+	    {
+			WriteObject(typeof(FullTypeName).Assembly.GetName().Version.ToString());
+		}
+	}
+}