functions/New-DbaSqlDirectory.ps1

Function New-DbaSqlDirectory {
    <#
.SYNOPSIS
Creates new path as specified by the path variable
 
.DESCRIPTION
Uses master.dbo.xp_create_subdir to create the path
Returns $true if the path can be created, $false otherwise
 
.PARAMETER SqlInstance
The SQL Server you want to run the test on.
 
.PARAMETER Path
The Path to tests. Can be a file or directory.
 
.PARAMETER SqlCredential
Allows you to login to servers using SQL Logins as opposed to Windows Auth/Integrated/Trusted. To use:
 
$scred = Get-Credential, then pass $scred object to the -SqlCredential parameter.
 
Windows Authentication will be used if SqlCredential is not specified. SQL Server does not accept Windows
credentials being passed as credentials. To connect as a different Windows user, run PowerShell as that user.
 
 
.NOTES
Tags:
Author: Chrissy LeMaire (@cl), netnerds.net
Requires: Admin access to server (not SQL Services),
Remoting must be enabled and accessible if $SqlInstance is not local
 
dbatools PowerShell module (https://dbatools.io, clemaire@gmail.com)
Copyright (C) 2016 Chrissy LeMaire
License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0
 
.LINK
https://dbatools.io/New-DbaSqlDirectory
 
.EXAMPLE
New-DbaSqlDirectory -SqlInstance sqlcluster -Path L:\MSAS12.MSSQLSERVER\OLAP
 
If the SQL Server instance sqlcluster can create the path L:\MSAS12.MSSQLSERVER\OLAP it will do and return $true, if not it will return $false.
 
.EXAMPLE
$credential = Get-Credential
New-DbaSqlDirectory -SqlInstance sqlcluster -SqlCredential $credential -Path L:\MSAS12.MSSQLSERVER\OLAP
 
If the SQL Server instance sqlcluster can create the path L:\MSAS12.MSSQLSERVER\OLAP it will do and return $true, if not it will return $false. Uses a SqlCredential to connect
#>

    [CmdletBinding()]
    [OutputType([bool])]
    param (
        [Parameter(Mandatory = $true)]
        [Alias("ServerInstance", "SqlServer")]
        [DbaInstanceParameter]$SqlInstance,
        [Parameter(Mandatory = $true)]
        [string]$Path,
        [PSCredential]$SqlCredential
    )
    
    $server = Connect-SqlInstance -SqlInstance $SqlInstance -SqlCredential $SqlCredential
    
    $Path = $Path.Replace("'", "''")
    
    $exists = Test-DbaSqlPath -SqlInstance $sqlinstance -SqlCredential $SqlCredential -Path $Path
    
    if ($exists) {
        Write-Warning "$Path already exists"
        return
    }
    
    $sql = "EXEC master.dbo.xp_create_subdir'$path'"
    Write-Debug $sql
    
    try {
        $query = $server.Query($sql)
        $Created = $true
    }
    catch {
        $Created = $false
    }
    
    [pscustomobject]@{
        Server  = $SqlInstance
        Path    = $Path
        Created = $Created
    }   
}