lib/Get-JenkinsJob.ps1

function Get-JenkinsJob
{
    [CmdLetBinding()]
    [OutputType([System.String])]
    param
    (
        [parameter(
            Position = 1,
            Mandatory = $true)]
        [System.String]
        $Uri,

        [parameter(
            Position = 2,
            Mandatory = $false)]
        [ValidateNotNullOrEmpty()]
        [System.Management.Automation.PSCredential]
        [System.Management.Automation.CredentialAttribute()]
        $Credential,

        [parameter(
            Position = 3,
            Mandatory = $false)]
        [ValidateNotNullOrEmpty()]
        [System.String]
        $Crumb,

        [parameter(
            Position = 4,
            Mandatory = $false)]
        [ValidateNotNullOrEmpty()]
        [System.String]
        $Folder,

        [parameter(
            Position = 5,
            Mandatory = $true)]
        [ValidateNotNullOrEmpty()]
        [System.String]
        $Name
    )

    $null = $PSBoundParameters.Add('Type', 'Command')

    if ($PSBoundParameters.ContainsKey('Folder'))
    {
        $Folders = ($Folder -split '\\') -split '/'
        $Command = 'job/'

        foreach ($Folder in $Folders)
        {
            $Command += "$Folder/job/"
        } # foreach

        $Command += "$Name/config.xml"
    }
    else
    {
        $Command = "job/$Name/config.xml"
    } # if

    $null = $PSBoundParameters.Remove('Name')
    $null = $PSBoundParameters.Remove('Folder')
    $null = $PSBoundParameters.Add('Command', $Command)
    $configXml = (Invoke-JenkinsCommand @PSBoundParameters).Content
    return $configXml -replace '^<\?xml\ version=(''|")1\.1(''|")', '<?xml version=''1.0'''
} # Get-JenkinsJob