Lability

0.15.0

Src/Public/Get-LabImage.ps1

                                function Get-LabImage {

<#

    .SYNOPSIS

        Gets master/parent disk image.

    .DESCRIPTION

        The Get-LabImage cmdlet returns current master/parent disk image properties.

    .PARAMETER Id

        Specifies the media Id of the image to return. If this parameter is not specified, all images are returned.

    .PARAMETER ConfigurationData

        Specifies a PowerShell DSC configuration data hashtable or a path to an existing PowerShell DSC .psd1

        configuration document that contains the required media definition.

    .EXAMPLE

        Get-LabImage

        Returns all current lab images on the host.

    .EXAMPLE

        Get-LabImage -Id 2012R2_x64_Standard_EN_Eval

        Returns the '2012R2_x64_Standard_EN_Eval' lab image properties, if available.

#>

    [CmdletBinding()]

    [OutputType([System.Management.Automation.PSCustomObject])]

    param (

        [Parameter(ValueFromPipeline,ValueFromPipelineByPropertyName)]

        [ValidateNotNullOrEmpty()]

        [System.String] $Id,

        ## Lab DSC configuration data

        [Parameter(ValueFromPipelineByPropertyName)]

        [System.Collections.Hashtable]

        [Microsoft.PowerShell.DesiredStateConfiguration.ArgumentToConfigurationDataTransformationAttribute()]

        $ConfigurationData

    )

    process {

        $hostDefaults = Get-ConfigurationData -Configuration Host;

        $parentVhdPath = Resolve-PathEx -Path $hostDefaults.ParentVhdPath;

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

            ## We have an Id. so resolve that

            try {

                $labMedia = Resolve-LabMedia @PSBoundParameters;

            }

            catch {

                $labMedia = $null;

            }

        }

        else {

            ## Otherwise return all media

            $labMedia = Get-LabMedia;

        }

        foreach ($media in $labMedia) {

            $differencingVhdPath = '{0}.vhdx' -f $media.Id;

            if ($media.MediaType -eq 'VHD') {

                $differencingVhdPath = $media.Filename;

            }

            $imagePath = Join-Path -Path $parentVhdPath -ChildPath $differencingVhdPath;

            if (Test-Path -Path $imagePath -PathType Leaf) {

                $imageFileInfo = Get-Item -Path $imagePath;

                $diskImage = Get-DiskImage -ImagePath $imageFileInfo.FullName;

                $labImage = [PSCustomObject] @{

                    Id = $media.Id;

                    Attached = $diskImage.Attached;

                    ImagePath = $diskImage.ImagePath;

                    LogicalSectorSize = $diskImage.LogicalSectorSize;

                    BlockSize = $diskImage.BlockSize;

                    FileSize = $diskImage.FileSize;

                    Size = $diskImage.Size;

                    Generation = ($imagePath.Split('.')[-1]).ToUpper();

                }

                $labImage.PSObject.TypeNames.Insert(0, 'VirtualEngine.Lability.Image');

                Write-Output -InputObject $labImage;

            }

        } #end foreach media

    } #end process

} #end function Get-LabImage

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