triaxis.CommandLine.ObjectOutput 2.6.0

.NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. 
dotnet add package triaxis.CommandLine.ObjectOutput --version 2.6.0
                    


                    

                
NuGet\Install-Package triaxis.CommandLine.ObjectOutput -Version 2.6.0
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="triaxis.CommandLine.ObjectOutput" Version="2.6.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="triaxis.CommandLine.ObjectOutput" Version="2.6.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="triaxis.CommandLine.ObjectOutput" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add triaxis.CommandLine.ObjectOutput --version 2.6.0
                    


                    

                
#r "nuget: triaxis.CommandLine.ObjectOutput, 2.6.0"
#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. 
#:package triaxis.CommandLine.ObjectOutput@2.6.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=triaxis.CommandLine.ObjectOutput&version=2.6.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=triaxis.CommandLine.ObjectOutput&version=2.6.0
                    


                            Install as a Cake Tool

triaxis.CommandLine

Write a class, get a command. An opinionated layer over System.CommandLine that discovers commands with a source generator, binds their arguments and options, resolves their dependencies, and formats whatever they return — with no Program.cs of your own and no reflection at runtime.

#!/usr/bin/env -S dotnet --
#:package triaxis.CommandLine.Tool@*

[Command("greet", Description = "Say hello")]
public class GreetCommand : LoggingCommand
{
    [Option("--name", "-n")]
    private readonly string _name = "World";

    public void Execute() => Console.WriteLine($"Hello {_name}!");
}

./hello.cs greet --name Alice    # a whole tool in one file, no project, no Main

That is the whole tool: --help, --verbosity, --output, Ctrl+C handling, DI and configuration come with it.

Install

dotnet new console -n MyTool && cd MyTool
dotnet add package triaxis.CommandLine.Tool

Delete Program.cs. With no entry point of its own, the project gets a generated one that wires up logging, configuration, object output and command discovery — and omits what your commands never use. Add a [Command] class anywhere in the assembly and run it.

Getting started walks through the rest: commands and subcommands, argument and option binding, [Inject] and constructor DI, configuration files and scopes, and the UseDefaults() one-liner for a hand-written Main.

Package Purpose
triaxis.CommandLine Core ToolBuilder, attributes, command discovery, DI
triaxis.CommandLine.ObjectOutput --output formatters (Table/Wide/Json/Yaml/Raw/None)
triaxis.CommandLine.Serilog Serilog integration and --verbosity / -v / -q options
triaxis.CommandLine.Tool Opinionated all-in-one meta-package (UseDefaults())

The libraries target netstandard2.0 and netstandard2.1, so they run on any modern .NET or .NET Framework host. Tools built on top typically target net8.0 or newer.

What you get
Commands [Command("db", "migrate")] on a class with Execute/ExecuteAsync. Nested paths become subcommands, and a class can carry several. Discovery is source-generated.
Binding [Argument] and [Option] on fields or properties, public or private; [Options] flattens a nested object; [ActionOption] adds an alternate entry point behind its own flag.
Dependency injection Constructor parameters resolve from the container without registering the command, or use [Inject] on any member. [ConfigureServices] / [Configure] hooks register services without a hand-written Main.
Configuration appsettings.json, machine and per-user overrides, environment variables — layered into precedence scopes, with Update(scope, …) writing one layer back as a minimal edit.
Logging Serilog, created lazily after parsing, so -v / -q / --verbosity and the Serilog config section both apply with no level switch.
Output Return a record, a list, an IAsyncEnumerable or a tuple; --output Table\|Wide\|Json\|Yaml\|Raw\|None formats it. JSON and YAML are emitted in-house, so there is no serializer dependency.
Middleware AddMiddleware(async (context, next) => …) around every invocation, first registered outermost.
Errors and Ctrl+C CommandErrorException (and any type you map to it) exits cleanly with a logged message and your exit code; ExecuteAsync(CancellationToken) gets cooperative shutdown.
Own host A Main/MainAsync command skips the CLI's container and runs its own — ASP.NET Core inside a subcommand, sharing the tool's config and Serilog via ApplyTo.
NativeAOT PublishAot works: 3.38 MiB for a command-only tool, no trim warnings.

Documentation
Getting started packages, the first tool, commands, binding, DI and configuration in one pass
Architecture the whole pipeline, from Tool.CreateBuilder to result finalization
Parameter binding attributes, naming, ordering, nested option groups, alternate entry points
Source generator what is emitted per command, the command tree, and the generated entry point
Dependency injection how the provider is assembled and how [Inject] is resolved
Hosting IHostBuilder conformance, configuration scopes, ToolHost, standalone commands, ApplyTo
Middleware the chain, ICommandExecutor, error mapping, cancellation
Logging Serilog wiring, verbosity flags, the default console sink, LoggingCommand
Object output descriptors, formatters, the JSON and YAML emitters, trimming
NativeAOT what it costs, what to switch off, and what does not work

Runnable projects for all of it live under examples/ — a hello-world tool, the binding showcase, the formatter matrix, an ASP.NET Core subcommand, and a single-file tool with no project at all.

Building from source

dotnet build src/triaxis.CommandLine.sln
dotnet test  src/triaxis.CommandLine.sln
dotnet test  src/triaxis.CommandLine.sln -f net48   # needs mono on Linux
dotnet build examples/Examples.sln

License

This package is licensed under the MIT License.

Copyright © 2023 triaxis s.r.o.

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.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 is compatible. 
.NET Framework 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 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 (1)

Showing the top 1 NuGet packages that depend on triaxis.CommandLine.ObjectOutput:

Package Downloads
triaxis.CommandLine.Tool

A set of opinionated extensions built on top of System.CommandLine for quick commandline tool project setup

GitHub repositories

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Version Downloads Last Updated
2.6.0 240 8/9/2026
2.6.0-rc.1 60 8/9/2026
2.6.0-beta.2 60 8/9/2026
2.6.0-beta.1 57 8/9/2026
2.5.2 126 8/6/2026
2.5.1 788 6/24/2026
2.5.0 370 6/15/2026
2.4.0 703 5/8/2026
2.3.0 156 5/8/2026
2.2.4 146 5/1/2026
2.2.3 166 4/23/2026
2.2.2 379 4/18/2026
2.2.1 144 4/18/2026
2.2.0 678 4/16/2026
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