Initial DOS VM tooling setup

.qemu/setup.ps1

@@ -0,0 +1,26 @@
+param()
+
+$ErrorActionPreference = 'Stop'
+$qemuImg = Get-Command qemu-img.exe -ErrorAction Stop
+$disk = Join-Path $PSScriptRoot 'freedos.qcow2'
+$archive = Join-Path $PSScriptRoot 'FD14-LiveCD.zip'
+$iso = Join-Path $PSScriptRoot 'FD14LIVE.iso'
+$url = 'https://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.4/FD14-LiveCD.zip'
+
+if (-not (Test-Path -LiteralPath $disk)) {
+    & $qemuImg.Source create -f qcow2 $disk 2G
+    if ($LASTEXITCODE -ne 0) { throw "qemu-img failed with exit code $LASTEXITCODE." }
+}
+
+if (-not (Test-Path -LiteralPath $iso)) {
+    if (-not (Test-Path -LiteralPath $archive)) {
+        Invoke-WebRequest -Uri $url -OutFile $archive
+    }
+    Expand-Archive -LiteralPath $archive -DestinationPath $PSScriptRoot -Force
+}
+
+if (-not (Test-Path -LiteralPath $iso)) {
+    throw 'FreeDOS ISO extraction failed.'
+}
+
+Get-Item -LiteralPath $disk,$iso | Select-Object Name,Length,LastWriteTime