Lability

0.20.0

Src/Private/Test-LabVMDisk.ps1

                                function Test-LabVMDisk {

    <#

    .SYNOPSIS

        Checks whether the lab virtual machine disk (VHDX) is present.

#>

    [CmdletBinding()]

    [OutputType([System.Boolean])]

    param (

        ## VM/node name

        [Parameter(Mandatory, ValueFromPipeline)]

        [System.String] $Name,

        ## Media Id

        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]

        [System.String] $Media,

        ## Lab DSC configuration data

        [Parameter(ValueFromPipelineByPropertyName)]

        [System.Collections.Hashtable]

        [Microsoft.PowerShell.DesiredStateConfiguration.ArgumentToConfigurationDataTransformationAttribute()]

        $ConfigurationData,

        [Parameter()]

        [ValidateSet('Present', 'Absent')]

        [System.String] $Ensure = 'Present'

    )

    process {

        if ($PSBoundParameters.ContainsKey('ConfigurationData')) {

            $image = Get-LabImage -Id $Media -ConfigurationData $ConfigurationData;

        }

        else {

            $image = Get-LabImage -Id $Media;

        }

        $environmentName = $ConfigurationData.NonNodeData.$($labDefaults.ModuleName).EnvironmentName;

        $vhd = @{

            Name       = $Name;

            Path       = Resolve-LabVMDiskPath -Name $Name -EnvironmentName $environmentName -Parent;

            ParentPath = $image.ImagePath;

            Generation = $image.Generation;

            Type       = 'Differencing';

        }

        if (-not $image) {

            ## This only occurs when a parent image is not available (#104).

            $vhd['MaximumSize'] = 136365211648; #127GB

            $vhd['Generation'] = 'VHDX';

        }

        Import-LabDscResource -ModuleName xHyper-V -ResourceName MSFT_xVHD -Prefix VHD;

        $testDscResourceResult = Test-LabDscResource -ResourceName VHD -Parameters $vhd;

        if ($Ensure -eq 'Absent') {

            return -not $testDscResourceResult;

        }

        else {

            return $testDscResourceResult;

        }

    } #end process

} #end function

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