Quick powershell port of inflate.py

inflate.ps1

#Requires -Version 5.0

# Credit: https://github.com/njcve/inflate.py

param(
    [Parameter(Mandatory = $true)]
    [string] $InputFile,
    [Parameter(Mandatory = $true)]
    [string] $OutputFile,
    [Parameter(Mandatory = $true)]
    [int] $InflateSize = 100
)

$bytesToAppend = $InflateSize * 1024 * 1024
$padding = New-Object byte[] $bytesToAppend

try {
    Copy-Item -Path $inputFile -Destination $OutputFile -Force
    $mode = [System.IO.FileMode]::Append
    $stream = [System.IO.File]::Open($OutputFile, $mode)
    $bw = [System.IO.BinaryWriter]::new($stream)
    $bw.Write($padding)
    $bw.Flush()
    $bw.Dispose()
    $stream.Dispose()
} catch {
    Write-Error $_.Exception.Message
    exit 1
}