PowerToys│一括リサイズと名前の変更｜CLIの場所と出力サイズを確認する

& {
    $InputPath = Join-Path (Get-Location).Path 'practice-4x3.png'
    $ErrorActionPreference = 'Stop'
    function Get-CgmImageHash([string]$Path) {
        $cgmHasher = [System.Security.Cryptography.SHA256]::Create()
        try { [BitConverter]::ToString($cgmHasher.ComputeHash([System.IO.File]::ReadAllBytes($Path))) }
        finally { $cgmHasher.Dispose() }
    }
    $cgmCandidates = @(
        (Join-Path $env:LOCALAPPDATA 'PowerToys\WinUI3Apps\PowerToys.ImageResizerCLI.exe'),
        (Join-Path $env:ProgramFiles 'PowerToys\WinUI3Apps\PowerToys.ImageResizerCLI.exe')
    )
    $cgmCli = $cgmCandidates | Where-Object { Test-Path -LiteralPath $_ -PathType Leaf } | Select-Object -First 1
    if (-not $cgmCli) { throw 'Image Resizer CLI was not found. Check your installed PowerToys version and path.' }
    if (-not (Test-Path -LiteralPath $InputPath -PathType Leaf)) { throw 'Input image was not found.' }
    $cgmInput = (Resolve-Path -LiteralPath $InputPath).Path
    $cgmDestination = Join-Path (Split-Path -Parent $cgmInput) 'half-output'
    if (Test-Path -LiteralPath $cgmDestination) { throw 'half-output already exists. Use a new practice folder.' }
    $cgmHashBefore = Get-CgmImageHash $cgmInput
    New-Item -ItemType Directory -Path $cgmDestination | Out-Null
    & $cgmCli -w 50 -h 50 -u Percent -d $cgmDestination -n '%1_half' $cgmInput
    if ($LASTEXITCODE -ne 0) { throw 'Image Resizer failed. Inspect the new output folder; keep the original image.' }
    if ((Get-CgmImageHash $cgmInput) -ne $cgmHashBefore) { throw 'The input changed. Stop and inspect the original image.' }
    Get-ChildItem -LiteralPath $cgmDestination -File | Select-Object Name,Length
}

# Set $cgmCli to the installed executable, as shown in resize-half.ps1.
& $cgmCli --help
& $cgmCli --show-config