public/Get-AppVentiXMachineGroup.ps1

<#
    .SYNOPSIS
        Retrieves the machine groups from the AppVentiX configuration.
 
    .DESCRIPTION
        The Get-AppVentiXMachineGroup function retrieves the machine groups from the AppVentiX config share.
        It can retrieve all machine groups or a specific machine group by name.
 
    .PARAMETER Name
        (Optional) Specifies the name of the machine group to retrieve.
 
    .PARAMETER ConfigShare
        Specifies the path to the AppVentiX configuration share.
        You can ommit this parameter if Set-AppVentiXConfigShare has been called.
 
    .EXAMPLE
        Get-AppVentiXMachineGroup
        Retrieves all machine groups from the AppVentiX configuration.
 
    .EXAMPLE
        Get-AppVentiXMachineGroup -Name 'Group1'
        Retrieves the machine group with the name 'Group1' from the AppVentiX configuration.
 
    .NOTES
        Function : Get-AppVentiXMachineGroup
        Author : John Billekens
        Copyright: Copyright (c) AppVentiX
        Version : 1.0
#>

function Get-AppVentiXMachineGroup {
    [CmdletBinding(DefaultParameterSetName = 'All')]
    Param(
        [Alias('FriendlyName')]
        [Parameter(ParameterSetName = 'Named', Mandatory)]
        [ValidateNotNullOrEmpty()]
        [String]$Name,

        [Parameter(DontShow, ParameterSetName = 'All')]
        [Parameter(DontShow, ParameterSetName = 'Named')]
        [ValidateNotNullOrEmpty()]
        [String]$ConfigShare = $Script:AppVentix.ConfigShare
    )
    if (Test-AppVentiXIsLicensed -ConfigShare $ConfigShare) {
        $machineGroupsFullname = Join-Path -Path $ConfigShare -ChildPath $Script:AppVentiX.MachineGroupsFilename
        Write-Verbose "Reading data from $($machineGroupsFullname)"
        if (Test-Path -Path $machineGroupsFullname) {
            [xml]$machineGroupsXml = Get-Content -Path $machineGroupsFullname
            $machineGroups = ConvertFrom-XML -InputObject $machineGroupsXml.Root
            if ($PSCmdlet.ParameterSetName -eq 'Named') {
                Write-Verbose "Retrieving machine group with name '$Name'"
                Write-Output ($machineGroups.MachineGroup | Where-Object -FilterScript { $_.FriendlyName -eq $Name })
            } else {
                Write-Verbose 'Retrieving all machine groups'
                Write-Output ($machineGroups.MachineGroup)
            }
        } else {
            Write-Warning "`"$($Script:AppVentiX.MachineGroupsFilename)`" file not found!"
        }
    } else {
        Write-Warning 'AppVentiX is not licensed!'
    }
}

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