Debug Powershell cmdlet (written in c#) in VS Code

Question

Another question addresses how to debug a Powershell cmdlet written in C# in Visual Studio 2015-19: Debugging / unloading PowerShell Cmdlet

I could somehow invoke a script like this:

function Start-DebugPowerShell
{
    PowerShell -NoProfile -NoExit -Command {
        function prompt {
            $newPrompt = "$pwd.Path [DEBUG]"
            Write-Host -NoNewline -ForegroundColor Yellow $newPrompt
            return '> '
        }
    }
}
Set-Alias -Name sdp -Value Start-DebugPowerShell

This makes it easy to create a temp PS instance that you can exit to unload.

Or I can set the Debug options in the VS Project like this and it works great:

I'd like to do the same thing, but using Visual Studio Code. I know how to debug this using attach (e.g. with these launch.json settings:

    {
        "name": ".NET Core Attach",
        "type": "coreclr",
        "request": "attach",
        "processId": "${command:pickProcess}",
        "justMyCode": false
    }

I can't figure out how to craft a launch.json that first launches pwsh. The project type is csharp and thus the only types available in launch.json are coreclr and clr.

noro5 · Accepted Answer · 2023-02-27 11:06:09Z

0

Late to answer, but what you are looking for is the configuration that should be used to debug a PS module written in C#. This can be done via following configuration added to lanuch.json:

 {
     "name": "PowerShell cmdlets: pwsh",
     "type": "coreclr",
     "request": "launch",
     "preLaunchTask": "build",
     "program": "pwsh",
     "args": [
         "-NoExit",
         "-NoProfile",
         "-Command",
         "Import-Module ${workspaceFolder}/myModule/bin/Debug/netstandard2.0/myModule.dll",
     ],
     "cwd": "${workspaceFolder}",
     "stopAtEntry": false,
     "console": "integratedTerminal"
 }

Notice the line Import-Module as this has to point to the dll which is the PS Module. Then when you run this configuration in VSC and setup some breakpoints in C#, you can invoke your cmdlet in the builtin Terminal and it will start the debugging session.

MS has a very good documentation on that: link

edited Feb 27, 2023 at 11:06

answered Feb 21, 2023 at 7:24

noro5

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