Single File C# Example

Starting with dotnet 10 (preview 4), you can use the new file-based C# application feature to write scripts in C# without needing to create a full project structure. This is particularly useful for quick scripts or small utilities.

Using File-Based C# Application with ModularPipelines

To use ModularPipelines in a single file C# application, you can follow these steps:

Create a C# file: Create a new file named example.cs (or any name with .cs extension).
Add ModularPipelines to your project: You can add TUnit as a package reference in your file. At the top of your example.cs, add the following line:
```
#:package ModularPipelines@2.*
```
Alternatively, you can specify a specific version:
```
#:package ModularPipelines@2.44.45
```

Write your C# code: Below the package reference, you can write your C# code using ModularPipelines. Here’s a simple example that uses ModularPipelines to check the dotnet version:

#!/usr/bin/dotnet run
#:package ModularPipelines.DotNet@2.44.*
using ModularPipelines.Attributes;
using ModularPipelines.Context;
using ModularPipelines.DotNet.Extensions;
using ModularPipelines.Host;
using ModularPipelines.Models;
using ModularPipelines.Modules;

await PipelineHostBuilder.Create()
    .AddModule<UpdateDotnetWorkloads>()
    .AddModule<CheckDotnetSdkModule>()
    .ExecutePipelineAsync();

public class UpdateDotnetWorkloads : Module<CommandResult>
{
    protected override async Task<CommandResult?> ExecuteAsync(IPipelineContext context, CancellationToken cancellationToken)
    {
        return await context.DotNet().DotNetWorkload.Update(token: cancellationToken);
    }
}

[DependsOn<UpdateDotnetWorkloads>]
public class CheckDotnetSdkModule : Module<CommandResult>
{

    protected override async Task<CommandResult?> ExecuteAsync(IPipelineContext context, CancellationToken cancellationToken)
    {
        return await context.DotNet().Sdk.Check(token: cancellationToken);
    }
}

Run your script: You can run your script directly using the dotnet run command. Make sure you have the .NET SDK installed and available in your PATH.
```
dotnet run example.cs
```

If you need to convert the file based application to a regular C# project, you can run the following command:

dotnet project convert example.cs

Using File-Based C# Application with ModularPipelines​

Using File-Based C# Application with ModularPipelines