Diagrammer.Core

0.2.36

Src/Private/Test-Image.ps1

function Test-Image {
    <#
    .SYNOPSIS
        Used by Diagrammer to validate supported logo image extension.
    .DESCRIPTION
    .NOTES
        Version: 0.1.1
        Author: Doctor Scripto
    .EXAMPLE
        Test-Image -Path "C:\Users\jocolon\logo.png"
    .LINK
        https://devblogs.microsoft.com/scripting/psimaging-part-1-test-image/
    #>

    [CmdletBinding()]
    param(

        [parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true)]
        [ValidateNotNullOrEmpty()]
        [Alias('PSPath')]
        [ValidateScript( {
                if (Test-Path -Path $_) {
                    $true
                } else {
                    throw "File $_ not found!"
                }
            })]
        [System.IO.FileInfo]$Path
    )

    process {
        $knownImageExtensions = @( '.jpeg', '.jpg', '.png' )
        $extension = [System.IO.Path]::GetExtension($Path)
        return $knownImageExtensions -contains $extension.ToLower()
    }
}