从.NET调用父ps1时如何执行子ps1

Question

I have an ASP.NET application that I am wishing to call a Powershell Script to get results. I've done some digging and come up with a lot of very dated information relating to PS1/2 but nothing for PS4 upwards.

I have a PowerShell script that presently completes some operations and outputs an ArrayList to the PowerShell console. The Powershell Script calls another PowerShell script:

.\Get-AzureSubscription.ps1

$environments = New-Object System.Collections.ArrayList
$resourceGroups = Get-AzureRMResourceGroup

foreach($thisResourceGroup in $resourceGroups)
{
    $resourceGroupVMs = Get-AzureRmVM -ResourceGroupName $thisResourceGroup.ResourceGroupName

    $environment = New-Object -TypeName PSObject
    $environment | Add-Member -MemberType NoteProperty -Name ResourceGroupName -Value $thisResourceGroup.ResourceGroupName
    $environment | Add-Member -MemberType NoteProperty -Name Id -Value $thisResourceGroup.ResourceId

    $machines = New-Object System.Collections.ArrayList

    foreach($thisMachine in $resourceGroupVMs)
    {
        $machine = New-Object -TypeName PSObject
        $machine | Add-Member -MemberType NoteProperty -name Name -value $thisMachine.Name
        $machine | Add-Member -MemberType NoteProperty -name ResourceGroupName -value $thisResourceGroup.ResourceGroupName 

        $status = Get-AzureRmVM -ResourceGroupName $thisResourceGroup.ResourceGroupName -Name $thisMachine.Name -Status | `
                         Select-Object -ExpandProperty Statuses | `
                         Where-Object { $_.Code.StartsWith("PowerState") } | `
                         Select-Object -ExpandProperty Code

        $regex = [Regex] '\/(.*?)$'
        $machine | Add-Member -MemberType NoteProperty -name Status -value $regex.Match($status).Groups[1].Value


        $machines.Add($machine) > $null;
    }

    $environmentStatuses = $machines | Select-Object ResourceGroupName -ExpandProperty Status | Group-Object ResourceGroupName, Status

    $environment | Add-Member -MemberType NoteProperty -name Statuses -value $environmentStatuses
    $environments.Add($environment) > $null;
}

$environments

I also have the following .NET code that attempts to execute the outer script by having the content of the PS1 script passed in as a string:

public Collection<PSObject> RunScript(string script, Dictionary<string, string> parameters = null)
{
    // Validate parameters
    if (string.IsNullOrEmpty(script)) { throw new ArgumentNullException(nameof(script)); }
    RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();

    using (Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration))
    {
        runspace.Open();

        using (RunspaceInvoke invoker = new RunspaceInvoke(runspace))
        {
            invoker.Invoke("Set-ExecutionPolicy Unrestricted");

            Pipeline pipeline = runspace.CreatePipeline();

            Command scriptCommand = new Command(script, true);
            parameters?.Select(kvp => new CommandParameter(kvp.Key, kvp.Value))
                .ForEach(scriptCommand.Parameters.Add);

            pipeline.Commands.Add(scriptCommand);

            var result = pipeline.Invoke();

            return result;
        }
    }
}

The issue is that if I call the ps1 from .NET, it fails complaining that The term '.\\Get-AzureSubscription.ps1' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. The term '.\\Get-AzureSubscription.ps1' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. If I execute the ps1 from PowerShell, it executes without issue.

If I copy and paste the content of the Get-AzureSubscription.ps1 into the ps1 that is directly called by .NET instead of linking the two scripts, everything is passed back to .NET successfully.

Answer 1

There's no guarantee that the working directory of the .NET application will be the same as the script you invoke from within it.

You can use this trick to figure out the full path to the invoking script (replace the first line with this):

$AzureSubscriptionScript = Join-Path $PSScriptRoot "Get-AzureAssistantSubscription.ps1"
& $AzureSubscriptionScript

$PSScriptRoot is an automatic variable that holds the path of the current/invoking script's location on disk as its value