McMaster.Extensions.CommandLineUtils 2.2.0

Prefix Reserved
.NET Standard 1.6 This package targets .NET Standard 1.6. The package is compatible with this framework or higher. .NET Framework 4.5 This package targets .NET Framework 4.5. The package is compatible with this framework or higher.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package McMaster.Extensions.CommandLineUtils --version 2.2.0                

                    
                

            
NuGet\Install-Package McMaster.Extensions.CommandLineUtils -Version 2.2.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="McMaster.Extensions.CommandLineUtils" Version="2.2.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add McMaster.Extensions.CommandLineUtils --version 2.2.0                

                    
                

            
#r "nuget: McMaster.Extensions.CommandLineUtils, 2.2.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
// Install McMaster.Extensions.CommandLineUtils as a Cake Addin
#addin nuget:?package=McMaster.Extensions.CommandLineUtils&version=2.2.0

// Install McMaster.Extensions.CommandLineUtils as a Cake Tool
#tool nuget:?package=McMaster.Extensions.CommandLineUtils&version=2.2.0

CommandLineApplication is the main entry point for most console apps parsing. There are two primary ways to use this API, using the builder pattern and attributes.

Attribute API

using System;
using McMaster.Extensions.CommandLineUtils;

[HelpOption]
public class Program
{
    public static int Main(string[] args)
        => CommandLineApplication.Execute<Program>(args);

    [Option(Description = "The subject")]
    public string Subject { get; }

    private void OnExecute()
    {
        var subject = Subject ?? "world";
        Console.WriteLine($"Hello {subject}!");
    }
}

Builder API

using System;
using McMaster.Extensions.CommandLineUtils;

public class Program
{
    public static int Main(string[] args)
    {
        var app = new CommandLineApplication();

        app.HelpOption();
        var optionSubject = app.Option("-s|--subject <SUBJECT>", "The subject", CommandOptionType.SingleValue);

        app.OnExecute(() =>
        {
            var subject = optionSubject.HasValue()
                ? optionSubject.Value()
                : "world";

            Console.WriteLine($"Hello {subject}!");
            return 0;
        });

        return app.Execute(args);
    }
}

Utilities

The library also includes other utilities for interaction with the console. These include:

  • ArgumentEscaper - use to escape arguments when starting a new command line process. 
     var args = new [] { "Arg1", "arg with space", "args ' with \"" quotes" };
 Process.Start("echo", ArgumentEscaper.EscapeAndConcatenate(args));
  • Prompt - for getting feedback from users. A few examples: 
    // allows y/n responses
Prompt.GetYesNo("Do you want to proceed?");

// masks input as '*'
Prompt.GetPassword("Password: ");
  • DotNetExe - finds the path to the dotnet.exe file used to start a .NET Core process 
    Process.Start(DotNetExe.FullPathOrDefault(), "run");

And more! See the docs for more API, such as IConsole, IReporter, and others.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp1.0 was computed.  netcoreapp1.1 was computed.  netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard1.6 is compatible.  netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net45 is compatible.  net451 was computed.  net452 was computed.  net46 was computed.  net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen30 was computed.  tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (82)

Showing the top 5 NuGet packages that depend on McMaster.Extensions.CommandLineUtils:

Package Downloads
McMaster.Extensions.Hosting.CommandLine

Provides command-line parsing API integration with the generic host API (Microsoft.Extensions.Hosting).
QuantConnect.Configuration

QuantConnect LEAN Engine: Configuration Project - The Config and argument parser implementation
FlubuCore

A cross platform build and deployment automation system for building projects and executing deployment scripts using C# code. Documentation can be found at: https://github.com/dotnetcore/FlubuCore Detailed examples can be found at: https://github.com/dotnetcore/FlubuCore.Examples
KubeOps

This is an operator sdk written in c#. It enables a developer to create a custom controller for CRDs (CustomResourceDefinitions) that runs on kubernetes.
Faithlife.Build

A build automation system using C# build scripts.

GitHub repositories (108)

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Repository Stars
icsharpcode/ILSpy
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xunit/xunit
xUnit.net is a free, open source, community-focused unit testing tool for .NET.
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Covenant is a collaborative .NET C2 framework for red teamers.
Version Downloads Last updated
4.1.1 1,272,507 2/19/2024
4.1.0 734,576 8/26/2023
4.0.2 1,657,626 11/19/2022
4.0.1 2,166,442 2/1/2022
4.0.0 666,926 12/27/2021
4.0.0-beta.74 49,517 1/22/2021
4.0.0-beta.56 1,218 1/17/2021
3.1.0 3,018,734 1/10/2021
3.1.0-rc.371 5,670 11/7/2020
3.1.0-beta.356 1,368 9/13/2020
3.1.0-beta.336 572 8/28/2020
3.0.0 2,758,960 3/29/2020
3.0.0-rc.289 4,961 3/21/2020
3.0.0-alpha.268 2,482 3/9/2020
2.6.0 743,467 3/8/2020
2.5.1 243,347 2/7/2020
2.5.0 258,271 1/2/2020
2.4.4 207,572 11/11/2019
2.4.3 28,841 11/1/2019 2.4.3 is deprecated because it has critical bugs.
2.4.2 187,880 9/24/2019 2.4.2 is deprecated because it has critical bugs.
2.4.1 21,448 9/18/2019
2.4.0 18,226 9/14/2019
2.3.4 1,012,541 4/11/2019
2.3.3 207,841 3/11/2019
2.3.2 316,904 2/5/2019
2.3.1 44,429 1/19/2019
2.3.0 270,101 1/1/2019
2.2.5 1,459,468 7/2/2018
2.2.4 298,561 5/25/2018
2.2.3 32,157 5/11/2018
2.2.2 95,530 4/28/2018
2.2.1 108,416 4/11/2018
2.2.0 595,679 3/31/2018
2.2.0-rc 8,282 3/23/2018
2.2.0-beta 3,190 3/8/2018
2.2.0-alpha 3,145 2/20/2018
2.1.1 130,572 12/28/2017
2.1.0 13,949 12/13/2017
2.1.0-rc 3,066 12/7/2017
2.1.0-beta 4,028 11/22/2017
2.1.0-alpha 2,885 11/11/2017
2.0.1 17,794 10/13/2017
2.0.0 18,883 9/16/2017

New features:
 - Added more validation attributes.
    - Add the `[FileExists]` attribute
    - Add the `[FileOrDirectoryExists]` attribute
    - Add the `[DirectoryExists]` attribute
    - Add the `[LegalFilePath]` attribute
    - Add the `[AllowedValues]` attribute
 - Added a new, fluent API for validation.
    - Added `Option().Accepts()` and `Argument().Accepts()`
    - Add `.ExistingFile()`
    - Add `.ExistingFileOrDirectory()`
    - Add `.ExistingDirectory()`
    - Add `.EmailAddress()`
    - Add `.LegalFilePath()`
    - Add `.MinLength(length)`
    - Add `.MaxLength(length)`
    - Add `.RegularExpression(pattern)`
    - Add `.Values(string[] allowedValues)`
    - Add `.Range(min, max)`
 - Add `CommandOptionType.SingleOrNoValue`.
   - Options of this type can be a switch, or have a value but only in the form `--param:value` or `--param=value`.
   - Support mapping `ValueTuple<bool,T>` to `CommandOptionType.SingleOrNoValue`
 - Generic commands, options, and arguments
   - Added `CommandLineApplication<TModel>`. This allows associating an application with a specific .NET type
   - Add support for `Option<T>` and `Argument<T>`
 - Convention API
    - Adds support for writing your own conventions to convert command line arguments into a .NET type
    - Add API to use a dozen of built-in conventions

Other enhancements:
 - Support parsing enums
 - @rmcc13 - `HelpOption` can be set to be inherited by all subcommands
 - @atruskie - Support for parsing double and floats
 - @sebastienros - Support for case-insensitive options
 - @atruskie: Add support for user-defined value parsers using `IValueParser` and `CommandLineApplication.ValueParsers`.
 - Add support for constructor injection and dependency injection by providing a custom service provider
 - Parse these values to boolean: T, t, F, f, 0, 1
 - Add `VersionOptionFromMember` to use a property or method as the source of version information

See more details here: https://github.com/natemcmaster/CommandLineUtils/blob/master/CHANGELOG.md#v220