internal/functions/test-pathexists.ps1

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
<#
.SYNOPSIS
Test multiple paths
 
.DESCRIPTION
Easy way to test multiple paths for public functions and have the same error handling
 
.PARAMETER Path
Array of paths you want to test
 
They have to be the same type, either file/leaf or folder/container
 
.PARAMETER Type
Type of path you want to test
 
Either 'Leaf' or 'Container'
 
.EXAMPLE
Test-PathExists "c:\temp",c:\temp\dir" -Type Container
 
This will test if the mentioned paths (folders) exists and the current context has enough permission.
 
.NOTES
Author: Mötz Jensen (@splaxi)
 
#>

function Test-PathExists {

    # [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseSingularNouns')]
    [CmdletBinding()]
    [OutputType([System.Boolean])]
    param (
        [Parameter(Mandatory = $True, Position = 1 )]
        [string[]] $Path,

        [ValidateSet('Leaf', 'Container')]
        [Parameter(Mandatory = $True, Position = 2 )]
        [string] $Type,

        [switch] $Create
    )
    
    $res = $false

    $arrList = New-Object -TypeName "System.Collections.ArrayList"
         
    foreach ($item in $Path) {
        Write-PSFMessage -Level Verbose -Message "Testing the path: $item" -Target $item
        $temp = Test-Path -Path $item -Type $Type

        if ((!$temp) -and ($Create) -and ($Type -eq "Container")) {
            Write-PSFMessage -Level Verbose -Message "Creating the path: $item" -Target $item
            New-Item -Path $item -ItemType Directory -Force -ErrorAction Stop
            $temp = $true
        }
        elseif (!$temp) {
            Write-PSFMessage -Level Host -Message "The <c='em'>$item</c> path wasn't found. Please ensure the path <c='em'>exists</c> and you have enough <c='em'>permission</c> to access the path."
        }
        
        $null = $arrList.Add($temp)
    }

    if ($arrList.Contains($false)) {
        Stop-PSFFunction -Message "Stopping because of missing paths." -StepsUpward 1
    }
    else {
        $res = $true
    }

    $res
}