lord-executor / pwshrun Goto Github PK

Often, a specific task requires a specific external tool to be installed in order to work correctly. For example, using bat in a task, obviously requires bat to be available in in the path.

It would be nice to be able to declare dependencies together with the task metadata like so:

PwshRun-RegisterTasks "mybundle" @(
    @{
        Alias = "dostuff";
        Command = "MyBundle-DoStuff";
        Description = "Does stuff";
        Example = "`$RUNNER dostuff";
        Dependencies = @("bat")
    }
)

Ever seen this message:

PropertyNotFoundException: C:\Users\dtm\Documents\PowerShell\Modules\PwshRun\1.3.2\pwshrun-bootstrap.ps1:183
Line |
 183 |      if ($taskArgs.Length -eq 0) {
     |          ~~~~~~~~~~~~~~~~~~~~~~
     | The property 'Length' cannot be found on this object. Verify that the property exists.

So, I did some digging, and... while $taskArgs really does seem to be an IList<object>, powershell seems to be totally weird about it and (probably) wraps collections internally or something.

According to https://learn.microsoft.com/en-us/powershell/scripting/learn/deep-dives/everything-about-arrays?view=powershell-7.3#count, you can actually just use the .count property to get the length (tested on my machine). Note the lowercase. That's intentional.