Initial release

tools/pjarczak_bambu_runtime/rootfs/build_windows_wsl_rootfs.ps1

@@ -0,0 +1,75 @@
+param(
+    [string]$OutputTar = "",
+    [string]$BaseImage = "ubuntu:24.04",
+    [switch]$Force
+)
+
+$ErrorActionPreference = 'Stop'
+
+function Get-ScriptDir {
+    if (-not [string]::IsNullOrWhiteSpace($PSScriptRoot)) {
+        return $PSScriptRoot
+    }
+    if (-not [string]::IsNullOrWhiteSpace($PSCommandPath)) {
+        return (Split-Path -Parent $PSCommandPath)
+    }
+    if ($MyInvocation.MyCommand -and -not [string]::IsNullOrWhiteSpace($MyInvocation.MyCommand.Path)) {
+        return (Split-Path -Parent $MyInvocation.MyCommand.Path)
+    }
+    return (Get-Location).Path
+}
+
+$scriptDir = Get-ScriptDir
+if ([string]::IsNullOrWhiteSpace($OutputTar)) {
+    $OutputTar = Join-Path $scriptDir 'windows-wsl2-rootfs.tar'
+}
+$OutputTar = [System.IO.Path]::GetFullPath($OutputTar)
+
+if ((Test-Path $OutputTar) -and -not $Force) {
+    Write-Host "Rootfs already exists: $OutputTar"
+    exit 0
+}
+
+$docker = Get-Command docker -ErrorAction SilentlyContinue
+if (-not $docker) {
+    throw 'docker not found. Install Docker Desktop or set PJARCZAK_WSL_ROOTFS_TAR to an existing rootfs tar.'
+}
+
+New-Item -ItemType Directory -Force -Path (Split-Path -Parent $OutputTar) | Out-Null
+
+$containerName = "pjarczak-bambu-rootfs-" + [guid]::NewGuid().ToString('N')
+try {
+    & docker pull --platform linux/amd64 $BaseImage
+    if ($LASTEXITCODE -ne 0) {
+        throw "docker pull failed for image: $BaseImage"
+    }
+
+    & docker create --platform linux/amd64 --name $containerName $BaseImage /bin/sh -lc 'exit 0'
+    if ($LASTEXITCODE -ne 0) {
+        throw "docker create failed for image: $BaseImage"
+    }
+
+    if (Test-Path $OutputTar) {
+        Remove-Item -Force $OutputTar
+    }
+
+    $exportProcess = Start-Process -FilePath docker -ArgumentList @('export', $containerName, '-o', $OutputTar) -NoNewWindow -Wait -PassThru
+    if ($exportProcess.ExitCode -ne 0) {
+        throw 'docker export failed'
+    }
+
+    if (!(Test-Path $OutputTar)) {
+        throw "rootfs tar was not created: $OutputTar"
+    }
+
+    $size = (Get-Item $OutputTar).Length
+    if ($size -le 0) {
+        throw "rootfs tar is empty: $OutputTar"
+    }
+
+    Write-Host "WSL rootfs created:"
+    Write-Host $OutputTar
+}
+finally {
+    & docker rm -f $containerName 2>$null | Out-Null
+}

tools/pjarczak_bambu_runtime/rootfs/build_windows_wsl_rootfs.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
+OUTPUT_TAR="${1:-$SCRIPT_DIR/windows-wsl2-rootfs.tar}"
+BASE_IMAGE="${PJARCZAK_WSL_ROOTFS_IMAGE:-ubuntu:24.04}"
+
+if ! command -v docker >/dev/null 2>&1; then
+    echo "docker not found. Install Docker or provide a prebuilt windows-wsl2-rootfs.tar." >&2
+    exit 1
+fi
+
+mkdir -p "$(dirname -- "$OUTPUT_TAR")"
+
+CONTAINER_NAME="pjarczak-bambu-rootfs-$(date +%s)-$$"
+cleanup() {
+    docker rm -f "$CONTAINER_NAME" >/dev/null 2>&1 || true
+}
+trap cleanup EXIT
+
+docker pull "$BASE_IMAGE" >/dev/null
+docker create --name "$CONTAINER_NAME" "$BASE_IMAGE" /bin/sh -lc 'exit 0' >/dev/null
+
+rm -f "$OUTPUT_TAR"
+docker export "$CONTAINER_NAME" -o "$OUTPUT_TAR"
+
+if [[ ! -s "$OUTPUT_TAR" ]]; then
+    echo "failed to create rootfs tar: $OUTPUT_TAR" >&2
+    exit 1
+fi
+
+echo "WSL rootfs created:"
+echo "  $OUTPUT_TAR"