mirror of
https://github.com/unslothai/unsloth
synced 2026-04-21 13:37:39 +00:00
d69d60ff19
* perf(studio): upgrade to Vite 8 + auto-install bun for 3x faster frontend builds
* fix(studio): make bun-to-npm fallback actually reachable
setup.sh used run_quiet() for the bun install attempt, but run_quiet
calls exit on failure. This killed the script before the npm fallback
could run, making the "falling back to npm" branch dead code.
Replace the run_quiet call with a direct bun invocation that captures
output to a temp file (same pattern, but returns instead of exiting).
Also clean up partial node_modules left by a failed bun install before
falling back to npm, in both setup.sh and build.sh. Without this, npm
inherits a corrupted node_modules tree from the failed bun run.
* fix(studio): restore commonjsOptions for dagre CJS interop
The previous commit removed build.commonjsOptions, assuming Vite 8's
Rolldown handles CJS natively. While optimizeDeps.include covers the
dev server (pre-bundling), it does NOT apply to production builds.
The resolve.alias still points @dagrejs/dagre to its .cjs.js entry,
so without commonjsOptions the production bundle fails to resolve
the CJS default export. This causes "TypeError: e is not a function"
on /chat after build (while dev mode works fine).
Restore the original commonjsOptions block to fix production builds.
* fix(studio): use motion/react instead of legacy framer-motion import
* fix(studio): address PR review findings for Vite 8 + bun upgrade
Fixes:
- Remove bun.lock from repo and add to .gitignore (npm is source of truth)
- Use & bun install *> $null pattern in setup.ps1 for reliable $LASTEXITCODE
- Add Remove-Item node_modules before npm fallback in setup.ps1
- Print bun install failure log in setup.sh before discarding
- Add Refresh-Environment after npm install -g bun in setup.ps1
- Tighten Node version check to ^20.19.0 || >=22.12.0 (Vite 8 requirement)
- Add engines field to package.json
- Use string comparison for _install_ok in build.sh
- Remove explicit framer-motion ^11.18.2 from package.json (motion pulls
framer-motion ^12.38.0 as its own dependency — the old pin caused a
version conflict)
* Fix Colab Node bypass and bun.lock stale-build trigger
Gate the Colab Node shortcut on NODE_OK=true so Colab
environments with a Node version too old for Vite 8 fall
through to the nvm install path instead of silently proceeding.
Exclude bun.lock from the stale-build probe in both setup.sh
and setup.ps1 so it does not force unnecessary frontend rebuilds
on every run.
---------
Co-authored-by: Daniel Han <danielhanchen@gmail.com>
Co-authored-by: Shine1i <wasimysdev@gmail.com>
1591 lines
73 KiB
PowerShell
1591 lines
73 KiB
PowerShell
#Requires -Version 5.1
|
|
# SPDX-License-Identifier: AGPL-3.0-only
|
|
# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0
|
|
<#
|
|
.SYNOPSIS
|
|
Full environment setup for Unsloth Studio on Windows (bundled version).
|
|
.DESCRIPTION
|
|
Always installs Node.js if needed. When running from pip install:
|
|
skips frontend build (already bundled). When running from git repo:
|
|
full setup including frontend build.
|
|
Supports NVIDIA GPU (full training + inference) and CPU-only (GGUF chat mode).
|
|
.NOTES
|
|
Usage: powershell -ExecutionPolicy Bypass -File setup.ps1
|
|
#>
|
|
|
|
$ErrorActionPreference = "Stop"
|
|
$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
|
|
$PackageDir = Split-Path -Parent $ScriptDir
|
|
|
|
# Detect if running from pip install (no frontend/ dir in studio)
|
|
$FrontendDir = Join-Path $ScriptDir "frontend"
|
|
$OxcValidatorDir = Join-Path $ScriptDir "backend\core\data_recipe\oxc-validator"
|
|
$IsPipInstall = -not (Test-Path $FrontendDir)
|
|
|
|
# ─────────────────────────────────────────────
|
|
# Helper functions
|
|
# ─────────────────────────────────────────────
|
|
|
|
# Reload ALL environment variables from registry.
|
|
# Picks up changes made by installers (winget, msi, etc.) including
|
|
# Path, CUDA_PATH, CUDA_PATH_V*, and any other vars they set.
|
|
function Refresh-Environment {
|
|
foreach ($level in @('Machine', 'User')) {
|
|
$vars = [System.Environment]::GetEnvironmentVariables($level)
|
|
foreach ($key in $vars.Keys) {
|
|
if ($key -eq 'Path') { continue }
|
|
Set-Item -Path "Env:$key" -Value $vars[$key] -ErrorAction SilentlyContinue
|
|
}
|
|
}
|
|
$machinePath = [System.Environment]::GetEnvironmentVariable('Path', 'Machine')
|
|
$userPath = [System.Environment]::GetEnvironmentVariable('Path', 'User')
|
|
$env:Path = "$machinePath;$userPath"
|
|
}
|
|
|
|
# Find nvcc on PATH, CUDA_PATH, or standard toolkit dirs.
|
|
# Returns the path to nvcc.exe, or $null if not found.
|
|
function Find-Nvcc {
|
|
param([string]$MaxVersion = "")
|
|
|
|
# If MaxVersion is set, we need to find a toolkit <= that version.
|
|
# CUDA toolkits install side-by-side under C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\vX.Y\
|
|
|
|
$toolkitBase = 'C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA'
|
|
|
|
if ($MaxVersion -and (Test-Path $toolkitBase)) {
|
|
$drMajor = [int]$MaxVersion.Split('.')[0]
|
|
$drMinor = [int]$MaxVersion.Split('.')[1]
|
|
|
|
# Get all installed CUDA dirs, sorted descending (highest first)
|
|
$cudaDirs = Get-ChildItem -Directory $toolkitBase | Where-Object {
|
|
$_.Name -match '^v(\d+)\.(\d+)'
|
|
} | Sort-Object { [version]($_.Name -replace '^v','') } -Descending
|
|
|
|
foreach ($dir in $cudaDirs) {
|
|
if ($dir.Name -match '^v(\d+)\.(\d+)') {
|
|
$tkMajor = [int]$Matches[1]; $tkMinor = [int]$Matches[2]
|
|
$compatible = ($tkMajor -lt $drMajor) -or ($tkMajor -eq $drMajor -and $tkMinor -le $drMinor)
|
|
if ($compatible) {
|
|
$nvcc = Join-Path $dir.FullName 'bin\nvcc.exe'
|
|
if (Test-Path $nvcc) {
|
|
return $nvcc
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# No compatible side-by-side version found
|
|
return $null
|
|
}
|
|
|
|
# Fallback: no version constraint — pick latest or whatever is available
|
|
|
|
# 1. Check nvcc on PATH
|
|
$cmd = Get-Command nvcc -ErrorAction SilentlyContinue
|
|
if ($cmd) { return $cmd.Source }
|
|
|
|
# 2. Check CUDA_PATH env var
|
|
$cudaRoot = [Environment]::GetEnvironmentVariable('CUDA_PATH', 'Process')
|
|
if (-not $cudaRoot) { $cudaRoot = [Environment]::GetEnvironmentVariable('CUDA_PATH', 'Machine') }
|
|
if (-not $cudaRoot) { $cudaRoot = [Environment]::GetEnvironmentVariable('CUDA_PATH', 'User') }
|
|
if ($cudaRoot -and (Test-Path (Join-Path $cudaRoot 'bin\nvcc.exe'))) {
|
|
return (Join-Path $cudaRoot 'bin\nvcc.exe')
|
|
}
|
|
|
|
# 3. Scan standard toolkit directory
|
|
if (Test-Path $toolkitBase) {
|
|
$latest = Get-ChildItem -Directory $toolkitBase | Sort-Object Name | Select-Object -Last 1
|
|
if ($latest -and (Test-Path (Join-Path $latest.FullName 'bin\nvcc.exe'))) {
|
|
return (Join-Path $latest.FullName 'bin\nvcc.exe')
|
|
}
|
|
}
|
|
|
|
return $null
|
|
}
|
|
|
|
# Detect CUDA Compute Capability via nvidia-smi.
|
|
# Returns e.g. "80" for A100 (8.0), "89" for RTX 4090 (8.9), etc.
|
|
# Returns $null if detection fails.
|
|
function Get-CudaComputeCapability {
|
|
# Use the resolved absolute path ($NvidiaSmiExe) to survive Refresh-Environment
|
|
$smiExe = if ($script:NvidiaSmiExe) { $script:NvidiaSmiExe } else {
|
|
$cmd = Get-Command nvidia-smi -ErrorAction SilentlyContinue
|
|
if ($cmd) { $cmd.Source } else { $null }
|
|
}
|
|
if (-not $smiExe) { return $null }
|
|
|
|
try {
|
|
$raw = & $smiExe --query-gpu=compute_cap --format=csv,noheader 2>$null
|
|
if ($LASTEXITCODE -ne 0 -or -not $raw) { return $null }
|
|
|
|
# nvidia-smi may return multiple GPUs; take the first one
|
|
$cap = ($raw -split "`n")[0].Trim()
|
|
if ($cap -match '^(\d+)\.(\d+)$') {
|
|
$major = $Matches[1]
|
|
$minor = $Matches[2]
|
|
return "$major$minor"
|
|
}
|
|
} catch { }
|
|
|
|
return $null
|
|
}
|
|
|
|
# Check if an nvcc binary supports a given sm_ architecture.
|
|
# Uses `nvcc --list-gpu-code` which outputs sm_* tokens (--list-gpu-arch
|
|
# outputs compute_* tokens instead). Available since CUDA 11.6.
|
|
# Returns $false if the flag isn't supported (old toolkit) — safer to reject
|
|
# and fall back to scanning/PTX than to assume support and fail later.
|
|
function Test-NvccArchSupport {
|
|
param([string]$NvccExe, [string]$Arch)
|
|
try {
|
|
$listCode = & $NvccExe --list-gpu-code 2>&1 | Out-String
|
|
if ($LASTEXITCODE -ne 0) { return $false }
|
|
return ($listCode -match "sm_$Arch")
|
|
} catch {
|
|
return $false
|
|
}
|
|
}
|
|
|
|
# Given an nvcc binary, return the highest sm_ architecture it supports.
|
|
# Returns e.g. "90" for CUDA 12.4. Returns $null if detection fails.
|
|
function Get-NvccMaxArch {
|
|
param([string]$NvccExe)
|
|
try {
|
|
$listCode = & $NvccExe --list-gpu-code 2>&1 | Out-String
|
|
if ($LASTEXITCODE -ne 0) { return $null }
|
|
$arches = @()
|
|
foreach ($line in $listCode -split "`n") {
|
|
if ($line.Trim() -match '^sm_(\d+)') {
|
|
$arches += [int]$Matches[1]
|
|
}
|
|
}
|
|
if ($arches.Count -gt 0) {
|
|
return ($arches | Sort-Object | Select-Object -Last 1).ToString()
|
|
}
|
|
} catch { }
|
|
return $null
|
|
}
|
|
|
|
# Detect driver's max CUDA version from nvidia-smi and return the highest
|
|
# compatible PyTorch CUDA index tag (e.g. "cu128").
|
|
# PyTorch on Windows ships CPU-only by default from PyPI; CUDA wheels live at
|
|
# https://download.pytorch.org/whl/<tag>. The tag must not exceed the driver's
|
|
# capability: e.g. driver "CUDA Version: 12.9" → cu128 (not cu130).
|
|
function Get-PytorchCudaTag {
|
|
$smiExe = if ($script:NvidiaSmiExe) { $script:NvidiaSmiExe } else {
|
|
$cmd = Get-Command nvidia-smi -ErrorAction SilentlyContinue
|
|
if ($cmd) { $cmd.Source } else { $null }
|
|
}
|
|
if (-not $smiExe) { return "cu126" }
|
|
|
|
try {
|
|
# 2>&1 | Out-String merges stderr into stdout then converts to a single
|
|
# string. Plain 2>$null doesn't fully suppress stderr in PS 5.1 --
|
|
# ErrorRecord objects leak into $output and break the -match.
|
|
$output = & $smiExe 2>&1 | Out-String
|
|
if ($output -match 'CUDA Version:\s+(\d+)\.(\d+)') {
|
|
$major = [int]$Matches[1]
|
|
$minor = [int]$Matches[2]
|
|
# PyTorch 2.10 offers: cu124, cu126, cu128, cu130
|
|
if ($major -ge 13) { return "cu130" }
|
|
if ($major -eq 12 -and $minor -ge 8) { return "cu128" }
|
|
if ($major -eq 12 -and $minor -ge 6) { return "cu126" }
|
|
if ($major -ge 12) { return "cu124" }
|
|
if ($major -ge 11) { return "cu118" }
|
|
return "cpu"
|
|
}
|
|
} catch { }
|
|
|
|
return "cu126"
|
|
}
|
|
|
|
# Find Visual Studio Build Tools for cmake -G flag.
|
|
# Strategy: (1) vswhere, (2) scan filesystem (handles broken vswhere registration).
|
|
# Returns @{ Generator = "Visual Studio 17 2022"; InstallPath = "C:\..."; Source = "..." } or $null.
|
|
function Find-VsBuildTools {
|
|
$map = @{ '2022' = '17'; '2019' = '16'; '2017' = '15' }
|
|
|
|
# --- Try vswhere first (works when VS is properly registered) ---
|
|
$vsw = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
|
|
if (Test-Path $vsw) {
|
|
$info = & $vsw -latest -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property catalog_productLineVersion 2>$null
|
|
$path = & $vsw -latest -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath 2>$null
|
|
if ($info -and $path) {
|
|
$y = $info.Trim()
|
|
$n = $map[$y]
|
|
if ($n) {
|
|
return @{ Generator = "Visual Studio $n $y"; InstallPath = $path.Trim(); Source = 'vswhere' }
|
|
}
|
|
}
|
|
}
|
|
|
|
# --- Scan filesystem (handles broken vswhere registration after winget cycles) ---
|
|
$roots = @($env:ProgramFiles, ${env:ProgramFiles(x86)})
|
|
$editions = @('BuildTools', 'Community', 'Professional', 'Enterprise')
|
|
$years = @('2022', '2019', '2017')
|
|
|
|
foreach ($y in $years) {
|
|
foreach ($r in $roots) {
|
|
foreach ($ed in $editions) {
|
|
$candidate = Join-Path $r "Microsoft Visual Studio\$y\$ed"
|
|
if (Test-Path $candidate) {
|
|
$vcDir = Join-Path $candidate "VC\Tools\MSVC"
|
|
if (Test-Path $vcDir) {
|
|
$cl = Get-ChildItem -Path $vcDir -Filter "cl.exe" -Recurse -ErrorAction SilentlyContinue | Select-Object -First 1
|
|
if ($cl) {
|
|
$n = $map[$y]
|
|
if ($n) {
|
|
return @{ Generator = "Visual Studio $n $y"; InstallPath = $candidate; Source = "filesystem ($ed)"; ClExe = $cl.FullName }
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return $null
|
|
}
|
|
|
|
# ─────────────────────────────────────────────
|
|
# Banner
|
|
# ─────────────────────────────────────────────
|
|
Write-Host "+==============================================+" -ForegroundColor Green
|
|
Write-Host "| Unsloth Studio Setup (Windows) |" -ForegroundColor Green
|
|
Write-Host "+==============================================+" -ForegroundColor Green
|
|
|
|
# ==========================================================================
|
|
# PHASE 1: System-level prerequisites (winget installs, env vars)
|
|
# All heavy system tool installs happen here BEFORE touching Python.
|
|
# ==========================================================================
|
|
|
|
# ============================================
|
|
# 1a. GPU detection
|
|
# ============================================
|
|
$HasNvidiaSmi = $false
|
|
$NvidiaSmiExe = $null # Absolute path -- survives Refresh-Environment
|
|
try {
|
|
$nvSmiCmd = Get-Command nvidia-smi -ErrorAction SilentlyContinue
|
|
if ($nvSmiCmd) {
|
|
& $nvSmiCmd.Source 2>&1 | Out-Null
|
|
if ($LASTEXITCODE -eq 0) {
|
|
$HasNvidiaSmi = $true
|
|
$NvidiaSmiExe = $nvSmiCmd.Source
|
|
}
|
|
}
|
|
} catch {}
|
|
# Fallback: nvidia-smi may not be on PATH even though a GPU + driver exist.
|
|
# Check the default install location and the Windows driver store.
|
|
if (-not $HasNvidiaSmi) {
|
|
$nvSmiDefaults = @(
|
|
"$env:ProgramFiles\NVIDIA Corporation\NVSMI\nvidia-smi.exe",
|
|
"$env:SystemRoot\System32\nvidia-smi.exe"
|
|
)
|
|
foreach ($p in $nvSmiDefaults) {
|
|
if (Test-Path $p) {
|
|
try {
|
|
& $p 2>&1 | Out-Null
|
|
if ($LASTEXITCODE -eq 0) {
|
|
$HasNvidiaSmi = $true
|
|
$NvidiaSmiExe = $p
|
|
Write-Host " Found nvidia-smi at $(Split-Path $p -Parent)" -ForegroundColor Gray
|
|
break
|
|
}
|
|
} catch {}
|
|
}
|
|
}
|
|
}
|
|
if (-not $HasNvidiaSmi) {
|
|
Write-Host ""
|
|
Write-Host "[WARN] No NVIDIA GPU detected. Studio will run in chat-only (GGUF) mode." -ForegroundColor Yellow
|
|
Write-Host " Training and GPU inference require an NVIDIA GPU with drivers installed." -ForegroundColor Yellow
|
|
Write-Host " https://www.nvidia.com/Download/index.aspx" -ForegroundColor Yellow
|
|
Write-Host ""
|
|
} else {
|
|
Write-Host "[OK] NVIDIA GPU detected" -ForegroundColor Green
|
|
}
|
|
|
|
# ============================================
|
|
# 1a.5. Windows Long Paths (required for deep node_modules / Python paths)
|
|
# ============================================
|
|
$LongPathsEnabled = $false
|
|
try {
|
|
$regVal = Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\FileSystem" -Name "LongPathsEnabled" -ErrorAction SilentlyContinue
|
|
if ($regVal -and $regVal.LongPathsEnabled -eq 1) {
|
|
$LongPathsEnabled = $true
|
|
}
|
|
} catch {}
|
|
|
|
if ($LongPathsEnabled) {
|
|
Write-Host "[OK] Windows Long Paths enabled" -ForegroundColor Green
|
|
} else {
|
|
Write-Host "Windows Long Paths not enabled (required for Triton compilation and deep dependency paths)." -ForegroundColor Yellow
|
|
Write-Host " Requesting admin access to fix..." -ForegroundColor Yellow
|
|
try {
|
|
# Spawn an elevated process to set the registry key (triggers UAC prompt)
|
|
$proc = Start-Process -FilePath "reg.exe" `
|
|
-ArgumentList 'add "HKLM\SYSTEM\CurrentControlSet\Control\FileSystem" /v LongPathsEnabled /t REG_DWORD /d 1 /f' `
|
|
-Verb RunAs -Wait -PassThru -ErrorAction Stop
|
|
if ($proc.ExitCode -eq 0) {
|
|
$LongPathsEnabled = $true
|
|
Write-Host "[OK] Windows Long Paths enabled (via UAC)" -ForegroundColor Green
|
|
} else {
|
|
Write-Host "[WARN] Failed to enable Long Paths (exit code: $($proc.ExitCode))" -ForegroundColor Yellow
|
|
}
|
|
} catch {
|
|
Write-Host "[WARN] Could not enable Long Paths (UAC was declined or not available)" -ForegroundColor Yellow
|
|
Write-Host " Run this manually in an Admin terminal:" -ForegroundColor Yellow
|
|
Write-Host ' reg add "HKLM\SYSTEM\CurrentControlSet\Control\FileSystem" /v LongPathsEnabled /t REG_DWORD /d 1 /f' -ForegroundColor Cyan
|
|
}
|
|
}
|
|
|
|
# ============================================
|
|
# 1b. Git (required by pip for git+https:// deps and by npm)
|
|
# ============================================
|
|
$HasGit = $null -ne (Get-Command git -ErrorAction SilentlyContinue)
|
|
if (-not $HasGit) {
|
|
Write-Host "Git not found -- installing via winget..." -ForegroundColor Yellow
|
|
$HasWinget = $null -ne (Get-Command winget -ErrorAction SilentlyContinue)
|
|
if ($HasWinget) {
|
|
try {
|
|
winget install Git.Git --source winget --accept-package-agreements --accept-source-agreements 2>&1 | Out-Null
|
|
Refresh-Environment
|
|
$HasGit = $null -ne (Get-Command git -ErrorAction SilentlyContinue)
|
|
} catch { }
|
|
}
|
|
if (-not $HasGit) {
|
|
Write-Host "[ERROR] Git is required but could not be installed automatically." -ForegroundColor Red
|
|
Write-Host " Install Git from https://git-scm.com/download/win and re-run." -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
Write-Host "[OK] Git installed: $(git --version)" -ForegroundColor Green
|
|
} else {
|
|
Write-Host "[OK] Git found: $(git --version)" -ForegroundColor Green
|
|
}
|
|
|
|
# ============================================
|
|
# 1c. CMake (required for llama.cpp build)
|
|
# ============================================
|
|
$HasCmake = $null -ne (Get-Command cmake -ErrorAction SilentlyContinue)
|
|
if (-not $HasCmake) {
|
|
Write-Host "CMake not found -- installing via winget..." -ForegroundColor Yellow
|
|
$HasWinget = $null -ne (Get-Command winget -ErrorAction SilentlyContinue)
|
|
if ($HasWinget) {
|
|
try {
|
|
winget install Kitware.CMake --source winget --accept-package-agreements --accept-source-agreements 2>&1 | Out-Null
|
|
Refresh-Environment
|
|
$HasCmake = $null -ne (Get-Command cmake -ErrorAction SilentlyContinue)
|
|
} catch { }
|
|
}
|
|
# winget may succeed but cmake isn't on PATH yet (MSI PATH changes need a
|
|
# new shell). Try the default install location as a fallback.
|
|
if (-not $HasCmake) {
|
|
$cmakeDefaults = @(
|
|
"$env:ProgramFiles\CMake\bin",
|
|
"${env:ProgramFiles(x86)}\CMake\bin",
|
|
"$env:LOCALAPPDATA\CMake\bin"
|
|
)
|
|
foreach ($d in $cmakeDefaults) {
|
|
if (Test-Path (Join-Path $d "cmake.exe")) {
|
|
$env:Path = "$d;$env:Path"
|
|
# Persist to user PATH so Refresh-Environment does not drop it later
|
|
$userPath = [Environment]::GetEnvironmentVariable('Path', 'User')
|
|
if (-not $userPath -or $userPath -notlike "*$d*") {
|
|
[Environment]::SetEnvironmentVariable('Path', "$d;$userPath", 'User')
|
|
}
|
|
$HasCmake = $null -ne (Get-Command cmake -ErrorAction SilentlyContinue)
|
|
if ($HasCmake) {
|
|
Write-Host " Found cmake at $d (added to PATH)" -ForegroundColor Gray
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ($HasCmake) {
|
|
Write-Host "[OK] CMake installed" -ForegroundColor Green
|
|
} else {
|
|
Write-Host "[ERROR] CMake is required but could not be installed." -ForegroundColor Red
|
|
Write-Host " Install CMake from https://cmake.org/download/ and re-run." -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
} else {
|
|
Write-Host "[OK] CMake found: $(cmake --version | Select-Object -First 1)" -ForegroundColor Green
|
|
}
|
|
|
|
# ============================================
|
|
# 1d. Visual Studio Build Tools (C++ compiler for llama.cpp)
|
|
# ============================================
|
|
$CmakeGenerator = $null
|
|
$VsInstallPath = $null
|
|
$vsResult = Find-VsBuildTools
|
|
|
|
if (-not $vsResult) {
|
|
Write-Host "Visual Studio Build Tools not found -- installing via winget..." -ForegroundColor Yellow
|
|
Write-Host " (This is a one-time install, may take several minutes)" -ForegroundColor Gray
|
|
$HasWinget = $null -ne (Get-Command winget -ErrorAction SilentlyContinue)
|
|
if ($HasWinget) {
|
|
$prevEAPTemp = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
winget install Microsoft.VisualStudio.2022.BuildTools --source winget --accept-package-agreements --accept-source-agreements --override "--add Microsoft.VisualStudio.Workload.VCTools --includeRecommended --passive --wait"
|
|
$ErrorActionPreference = $prevEAPTemp
|
|
# Re-scan after install (don't trust vswhere catalog)
|
|
$vsResult = Find-VsBuildTools
|
|
}
|
|
}
|
|
|
|
if ($vsResult) {
|
|
$CmakeGenerator = $vsResult.Generator
|
|
$VsInstallPath = $vsResult.InstallPath
|
|
Write-Host "[OK] $CmakeGenerator detected via $($vsResult.Source)" -ForegroundColor Green
|
|
if ($vsResult.ClExe) { Write-Host " cl.exe: $($vsResult.ClExe)" -ForegroundColor Gray }
|
|
} else {
|
|
Write-Host "[ERROR] Visual Studio Build Tools could not be found or installed." -ForegroundColor Red
|
|
Write-Host " Manual install:" -ForegroundColor Red
|
|
Write-Host ' 1. winget install Microsoft.VisualStudio.2022.BuildTools --source winget' -ForegroundColor Yellow
|
|
Write-Host ' 2. Open Visual Studio Installer -> Modify -> check "Desktop development with C++"' -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
|
|
# ============================================
|
|
# 1e. CUDA Toolkit (nvcc for llama.cpp build + env vars)
|
|
# ============================================
|
|
if ($HasNvidiaSmi) {
|
|
# IMPORTANT: The CUDA Toolkit version must be <= the max CUDA version the
|
|
# NVIDIA driver supports. nvidia-smi reports this as "CUDA Version: X.Y".
|
|
# If we install a toolkit newer than the driver supports, llama-server will
|
|
# fail at runtime with "ggml_cuda_init: failed to initialize CUDA: (null)".
|
|
|
|
# -- Detect max CUDA version the driver supports --
|
|
$DriverMaxCuda = $null
|
|
try {
|
|
$smiOut = & $NvidiaSmiExe 2>&1 | Out-String
|
|
if ($smiOut -match "CUDA Version:\s+([\d]+)\.([\d]+)") {
|
|
$DriverMaxCuda = "$($Matches[1]).$($Matches[2])"
|
|
Write-Host " Driver supports up to CUDA $DriverMaxCuda" -ForegroundColor Gray
|
|
}
|
|
} catch {}
|
|
|
|
# Detect compute capability early so we can validate toolkit support
|
|
$CudaArch = Get-CudaComputeCapability
|
|
if ($CudaArch) {
|
|
Write-Host " GPU Compute Capability = $($CudaArch.Insert($CudaArch.Length-1, '.')) (sm_$CudaArch)" -ForegroundColor Gray
|
|
}
|
|
|
|
# -- Find a toolkit that's compatible with the driver AND the GPU --
|
|
# Strategy: prefer the toolkit at CUDA_PATH (user's existing setup) if it's
|
|
# compatible with the driver AND supports the GPU architecture. Only fall back
|
|
# to scanning side-by-side installs if CUDA_PATH is missing, points to an
|
|
# incompatible version, or can't compile for the GPU. This avoids
|
|
# header/binary mismatches when multiple toolkits are installed.
|
|
$IncompatibleToolkit = $null
|
|
$NvccPath = $null
|
|
|
|
if ($DriverMaxCuda) {
|
|
$drMajorCuda = [int]$DriverMaxCuda.Split('.')[0]
|
|
$drMinorCuda = [int]$DriverMaxCuda.Split('.')[1]
|
|
|
|
# --- Step 1: Check existing CUDA_PATH first ---
|
|
$existingCudaPath = [Environment]::GetEnvironmentVariable('CUDA_PATH', 'Machine')
|
|
if (-not $existingCudaPath) {
|
|
$existingCudaPath = [Environment]::GetEnvironmentVariable('CUDA_PATH', 'User')
|
|
}
|
|
if ($existingCudaPath -and (Test-Path (Join-Path $existingCudaPath 'bin\nvcc.exe'))) {
|
|
$candidateNvcc = Join-Path $existingCudaPath 'bin\nvcc.exe'
|
|
$verOut = & $candidateNvcc --version 2>&1 | Out-String
|
|
if ($verOut -match 'release\s+(\d+)\.(\d+)') {
|
|
$tkMaj = [int]$Matches[1]; $tkMin = [int]$Matches[2]
|
|
$isCompat = ($tkMaj -lt $drMajorCuda) -or ($tkMaj -eq $drMajorCuda -and $tkMin -le $drMinorCuda)
|
|
if ($isCompat) {
|
|
# Also verify the toolkit supports our GPU architecture
|
|
Write-Host " [DEBUG] Checking CUDA compatibility: toolkit=$tkMaj.$tkMin arch=sm_$CudaArch" -ForegroundColor Magenta
|
|
$archOk = $true
|
|
if ($CudaArch) {
|
|
$archOk = Test-NvccArchSupport -NvccExe $candidateNvcc -Arch $CudaArch
|
|
if (-not $archOk) {
|
|
Write-Host " [INFO] CUDA_PATH toolkit (CUDA $tkMaj.$tkMin) does not support GPU arch sm_$CudaArch" -ForegroundColor Yellow
|
|
Write-Host " Looking for a newer toolkit..." -ForegroundColor Yellow
|
|
}
|
|
}
|
|
if ($archOk) {
|
|
$NvccPath = $candidateNvcc
|
|
Write-Host " [OK] Using existing CUDA Toolkit at CUDA_PATH (nvcc: $NvccPath)" -ForegroundColor Green
|
|
}
|
|
} else {
|
|
Write-Host " [INFO] CUDA_PATH ($existingCudaPath) has CUDA $tkMaj.$tkMin which exceeds driver max $DriverMaxCuda" -ForegroundColor Yellow
|
|
}
|
|
}
|
|
}
|
|
|
|
# --- Step 2: Fall back to scanning side-by-side installs ---
|
|
if (-not $NvccPath) {
|
|
$NvccPath = Find-Nvcc -MaxVersion $DriverMaxCuda
|
|
if ($NvccPath) {
|
|
Write-Host " [OK] Found compatible CUDA Toolkit (nvcc: $NvccPath)" -ForegroundColor Green
|
|
if ($existingCudaPath) {
|
|
$selectedRoot = Split-Path (Split-Path $NvccPath -Parent) -Parent
|
|
if ($existingCudaPath.TrimEnd('\') -ne $selectedRoot.TrimEnd('\')) {
|
|
Write-Host " [INFO] Overriding CUDA_PATH from $existingCudaPath to $selectedRoot" -ForegroundColor Yellow
|
|
}
|
|
}
|
|
} else {
|
|
# Check if there's an incompatible (too new) toolkit installed
|
|
$AnyNvcc = Find-Nvcc
|
|
if ($AnyNvcc) {
|
|
$NvccOut = & $AnyNvcc --version 2>&1 | Out-String
|
|
if ($NvccOut -match "release\s+([\d]+\.[\d]+)") {
|
|
$IncompatibleToolkit = $Matches[1]
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
$NvccPath = Find-Nvcc
|
|
}
|
|
|
|
# -- If incompatible toolkit is blocking, tell user to uninstall it --
|
|
if (-not $NvccPath -and $IncompatibleToolkit) {
|
|
Write-Host "" -ForegroundColor Red
|
|
Write-Host "========================================================================" -ForegroundColor Red
|
|
Write-Host "[ERROR] CUDA Toolkit $IncompatibleToolkit is installed but INCOMPATIBLE" -ForegroundColor Red
|
|
Write-Host " with your NVIDIA driver (which supports up to CUDA $DriverMaxCuda)." -ForegroundColor Red
|
|
Write-Host "" -ForegroundColor Red
|
|
Write-Host " This will cause 'failed to initialize CUDA' errors at runtime." -ForegroundColor Red
|
|
Write-Host "" -ForegroundColor Red
|
|
Write-Host " To fix:" -ForegroundColor Yellow
|
|
Write-Host " 1. Open Control Panel -> Programs -> Uninstall a program" -ForegroundColor Yellow
|
|
Write-Host " 2. Uninstall 'NVIDIA CUDA Toolkit $IncompatibleToolkit'" -ForegroundColor Yellow
|
|
Write-Host " 3. Re-run setup.bat (it will install CUDA $DriverMaxCuda automatically)" -ForegroundColor Yellow
|
|
Write-Host "" -ForegroundColor Yellow
|
|
Write-Host " Alternatively, update your NVIDIA driver to one that supports CUDA $IncompatibleToolkit." -ForegroundColor Gray
|
|
Write-Host "========================================================================" -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
|
|
# -- No toolkit at all: install via winget --
|
|
if (-not $NvccPath) {
|
|
Write-Host "CUDA toolkit (nvcc) not found -- installing via winget..." -ForegroundColor Yellow
|
|
$HasWinget = $null -ne (Get-Command winget -ErrorAction SilentlyContinue)
|
|
if ($HasWinget) {
|
|
if ($DriverMaxCuda) {
|
|
# Query winget for available CUDA Toolkit versions
|
|
$drMajor = [int]$DriverMaxCuda.Split('.')[0]
|
|
$drMinor = [int]$DriverMaxCuda.Split('.')[1]
|
|
$AvailableVersions = @()
|
|
try {
|
|
$rawOutput = winget show Nvidia.CUDA --versions --accept-source-agreements 2>&1 | Out-String
|
|
# Parse version lines (e.g. "12.6", "12.5", "11.8")
|
|
foreach ($line in $rawOutput -split "`n") {
|
|
$line = $line.Trim()
|
|
if ($line -match '^\d+\.\d+') {
|
|
$AvailableVersions += $line
|
|
}
|
|
}
|
|
} catch {}
|
|
|
|
# Filter to compatible versions (<= driver max) and pick the highest
|
|
$BestVersion = $null
|
|
foreach ($ver in $AvailableVersions) {
|
|
$parts = $ver.Split('.')
|
|
$vMajor = [int]$parts[0]
|
|
$vMinor = [int]$parts[1]
|
|
if ($vMajor -lt $drMajor -or ($vMajor -eq $drMajor -and $vMinor -le $drMinor)) {
|
|
$BestVersion = $ver
|
|
break # list is descending, first match is highest compatible
|
|
}
|
|
}
|
|
|
|
if ($BestVersion) {
|
|
Write-Host " Installing CUDA Toolkit $BestVersion via winget... " -ForegroundColor Cyan
|
|
$prevEAPCuda = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
winget install --id=Nvidia.CUDA --version=$BestVersion -e --source winget --accept-package-agreements --accept-source-agreements 2>&1 | Out-Null
|
|
$ErrorActionPreference = $prevEAPCuda
|
|
Refresh-Environment
|
|
$NvccPath = Find-Nvcc -MaxVersion $DriverMaxCuda
|
|
if ($NvccPath) {
|
|
Write-Host " [OK] CUDA Toolkit $BestVersion installed (nvcc: $NvccPath)" -ForegroundColor Green
|
|
}
|
|
} else {
|
|
Write-Host " [WARN] No compatible CUDA Toolkit version found in winget (need <= $DriverMaxCuda)" -ForegroundColor Yellow
|
|
}
|
|
} else {
|
|
Write-Host " Installing CUDA Toolkit (latest) via winget..." -ForegroundColor Cyan
|
|
winget install --id=Nvidia.CUDA -e --source winget --accept-package-agreements --accept-source-agreements
|
|
Refresh-Environment
|
|
$NvccPath = Find-Nvcc
|
|
if ($NvccPath) {
|
|
Write-Host " [OK] CUDA Toolkit installed (nvcc: $NvccPath)" -ForegroundColor Green
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (-not $NvccPath) {
|
|
Write-Host "[ERROR] CUDA Toolkit (nvcc) is required but could not be found or installed." -ForegroundColor Red
|
|
if ($DriverMaxCuda) {
|
|
Write-Host " Install CUDA Toolkit $DriverMaxCuda from https://developer.nvidia.com/cuda-toolkit-archive" -ForegroundColor Yellow
|
|
} else {
|
|
Write-Host " Install CUDA Toolkit from https://developer.nvidia.com/cuda-downloads" -ForegroundColor Yellow
|
|
}
|
|
exit 1
|
|
}
|
|
|
|
# -- Set CUDA env vars so cmake AND MSBuild can find the toolkit --
|
|
$CudaToolkitRoot = Split-Path (Split-Path $NvccPath -Parent) -Parent
|
|
# CUDA_PATH: used by cmake's find_package(CUDAToolkit)
|
|
[Environment]::SetEnvironmentVariable('CUDA_PATH', $CudaToolkitRoot, 'Process')
|
|
# CudaToolkitDir: the MSBuild property that CUDA .targets checks directly
|
|
# Trailing backslash required -- the .targets file appends subpaths to it
|
|
[Environment]::SetEnvironmentVariable('CudaToolkitDir', "$CudaToolkitRoot\", 'Process')
|
|
# Always persist CUDA_PATH to User registry so the compatible toolkit is used
|
|
# in future sessions (overwrites any existing value pointing to a newer, incompatible version)
|
|
[Environment]::SetEnvironmentVariable('CUDA_PATH', $CudaToolkitRoot, 'User')
|
|
Write-Host " Persisted CUDA_PATH=$CudaToolkitRoot to user environment" -ForegroundColor Gray
|
|
# Clear all versioned CUDA_PATH_V* env vars in this process to prevent
|
|
# cmake/MSBuild from discovering a conflicting CUDA installation.
|
|
$cudaPathVars = @([Environment]::GetEnvironmentVariables('Process').Keys | Where-Object { $_ -match '^CUDA_PATH_V' })
|
|
foreach ($v in $cudaPathVars) {
|
|
[Environment]::SetEnvironmentVariable($v, $null, 'Process')
|
|
}
|
|
# Set only the versioned var matching the selected toolkit (e.g. CUDA_PATH_V13_0)
|
|
$tkDirName = Split-Path $CudaToolkitRoot -Leaf
|
|
if ($tkDirName -match '^v(\d+)\.(\d+)') {
|
|
$cudaPathVerVar = "CUDA_PATH_V$($Matches[1])_$($Matches[2])"
|
|
[Environment]::SetEnvironmentVariable($cudaPathVerVar, $CudaToolkitRoot, 'Process')
|
|
Write-Host " Set $cudaPathVerVar (cleared other CUDA_PATH_V* vars)" -ForegroundColor Gray
|
|
}
|
|
# Ensure nvcc's bin dir is on PATH for this process
|
|
$nvccBinDir = Split-Path $NvccPath -Parent
|
|
if ($env:PATH -notlike "*$nvccBinDir*") {
|
|
[Environment]::SetEnvironmentVariable('PATH', "$nvccBinDir;$env:PATH", 'Process')
|
|
}
|
|
# Persist nvcc bin dir to User PATH so it works in new terminals
|
|
$userPath = [Environment]::GetEnvironmentVariable('Path', 'User')
|
|
if (-not $userPath -or $userPath -notlike "*$nvccBinDir*") {
|
|
if ($userPath) {
|
|
[Environment]::SetEnvironmentVariable('Path', "$nvccBinDir;$userPath", 'User')
|
|
} else {
|
|
[Environment]::SetEnvironmentVariable('Path', "$nvccBinDir", 'User')
|
|
}
|
|
Write-Host " Persisted CUDA bin dir to user PATH" -ForegroundColor Gray
|
|
}
|
|
|
|
# -- Ensure CUDA ↔ Visual Studio integration files exist --
|
|
# When CUDA is installed before VS Build Tools (or VS is reinstalled after CUDA),
|
|
# the MSBuild .targets/.props files that let VS compile .cu files are missing.
|
|
# cmake fails with "No CUDA toolset found". Fix: copy from CUDA extras dir.
|
|
if ($VsInstallPath -and $CudaToolkitRoot) {
|
|
$vsCustomizations = Join-Path $VsInstallPath "MSBuild\Microsoft\VC\v170\BuildCustomizations"
|
|
$cudaExtras = Join-Path $CudaToolkitRoot "extras\visual_studio_integration\MSBuildExtensions"
|
|
if ((Test-Path $cudaExtras) -and (Test-Path $vsCustomizations)) {
|
|
$hasTargets = Get-ChildItem $vsCustomizations -Filter "CUDA *.targets" -ErrorAction SilentlyContinue
|
|
if (-not $hasTargets) {
|
|
Write-Host " [INFO] CUDA VS integration missing -- copying .targets files..." -ForegroundColor Yellow
|
|
try {
|
|
Copy-Item "$cudaExtras\*" $vsCustomizations -Force -ErrorAction Stop
|
|
Write-Host " [OK] CUDA VS integration files installed" -ForegroundColor Green
|
|
} catch {
|
|
# Direct copy failed (needs admin). Try elevated copy via Start-Process.
|
|
try {
|
|
$copyCmd = "Copy-Item '$cudaExtras\*' '$vsCustomizations' -Force"
|
|
Start-Process powershell -ArgumentList "-NoProfile -Command $copyCmd" -Verb RunAs -Wait -ErrorAction Stop
|
|
$hasTargetsRetry = Get-ChildItem $vsCustomizations -Filter "CUDA *.targets" -ErrorAction SilentlyContinue
|
|
if ($hasTargetsRetry) {
|
|
Write-Host " [OK] CUDA VS integration files installed (elevated)" -ForegroundColor Green
|
|
} else {
|
|
throw "Copy did not produce .targets files"
|
|
}
|
|
} catch {
|
|
Write-Host " [WARN] Could not copy CUDA VS integration files" -ForegroundColor Yellow
|
|
Write-Host " The llama.cpp build may fail with 'No CUDA toolset found'." -ForegroundColor Yellow
|
|
Write-Host " Manual fix: copy contents of" -ForegroundColor Yellow
|
|
Write-Host " $cudaExtras" -ForegroundColor Cyan
|
|
Write-Host " into:" -ForegroundColor Yellow
|
|
Write-Host " $vsCustomizations" -ForegroundColor Cyan
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
Write-Host "[OK] CUDA Toolkit: $NvccPath" -ForegroundColor Green
|
|
Write-Host " CUDA_PATH = $CudaToolkitRoot" -ForegroundColor Gray
|
|
Write-Host " CudaToolkitDir = $CudaToolkitRoot\" -ForegroundColor Gray
|
|
|
|
# $CudaArch was detected earlier (before toolkit selection) so it could
|
|
# influence which toolkit we picked. Just log the final state here.
|
|
if (-not $CudaArch) {
|
|
Write-Host " [WARN] Could not detect compute capability -- cmake will use defaults" -ForegroundColor Yellow
|
|
}
|
|
} else {
|
|
Write-Host "[SKIP] CUDA Toolkit -- no NVIDIA GPU detected" -ForegroundColor Yellow
|
|
}
|
|
|
|
# ============================================
|
|
# 1f. Node.js / npm (skip if pip-installed -- only needed for frontend build)
|
|
# ============================================
|
|
if ($IsPipInstall) {
|
|
Write-Host "[OK] Running from pip install - frontend already bundled, skipping Node/npm check" -ForegroundColor Green
|
|
} else {
|
|
# setup.sh installs Node LTS (v22) via nvm. We enforce the same range here:
|
|
# Vite 8 requires Node ^20.19.0 || >=22.12.0, npm >= 11.
|
|
$NeedNode = $true
|
|
try {
|
|
$NodeVersion = (node -v 2>$null)
|
|
$NpmVersion = (npm -v 2>$null)
|
|
if ($NodeVersion -and $NpmVersion) {
|
|
$NodeParts = ($NodeVersion -replace 'v','').Split('.')
|
|
$NodeMajor = [int]$NodeParts[0]
|
|
$NodeMinor = [int]$NodeParts[1]
|
|
$NpmMajor = [int]$NpmVersion.Split('.')[0]
|
|
|
|
# Vite 8: ^20.19.0 || >=22.12.0
|
|
$NodeOk = ($NodeMajor -eq 20 -and $NodeMinor -ge 19) -or
|
|
($NodeMajor -eq 22 -and $NodeMinor -ge 12) -or
|
|
($NodeMajor -ge 23)
|
|
if ($NodeOk -and $NpmMajor -ge 11) {
|
|
Write-Host "[OK] Node $NodeVersion and npm $NpmVersion already meet requirements." -ForegroundColor Green
|
|
$NeedNode = $false
|
|
} else {
|
|
Write-Host "[WARN] Node $NodeVersion / npm $NpmVersion too old." -ForegroundColor Yellow
|
|
}
|
|
}
|
|
} catch {
|
|
Write-Host "[WARN] Node/npm not found." -ForegroundColor Yellow
|
|
}
|
|
|
|
if ($NeedNode) {
|
|
Write-Host "Installing Node.js LTS via winget..." -ForegroundColor Cyan
|
|
try {
|
|
winget install OpenJS.NodeJS.LTS --source winget --accept-package-agreements --accept-source-agreements
|
|
Refresh-Environment
|
|
} catch {
|
|
Write-Host "[ERROR] Could not install Node.js automatically." -ForegroundColor Red
|
|
Write-Host "Please install Node.js >= 20 from https://nodejs.org/" -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
}
|
|
|
|
Write-Host "[OK] Node $(node -v) | npm $(npm -v)" -ForegroundColor Green
|
|
|
|
# ── bun (optional, faster package installs) ──
|
|
# Installed via npm — Node is already guaranteed above. Works on all platforms.
|
|
if (-not (Get-Command bun -ErrorAction SilentlyContinue)) {
|
|
Write-Host " Installing bun (faster frontend package installs)..." -ForegroundColor DarkGray
|
|
$prevEAP_bun = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
npm install -g bun 2>&1 | Out-Null
|
|
$ErrorActionPreference = $prevEAP_bun
|
|
Refresh-Environment
|
|
if (Get-Command bun -ErrorAction SilentlyContinue) {
|
|
Write-Host "[OK] bun installed ($(bun --version))" -ForegroundColor Green
|
|
} else {
|
|
Write-Host "[OK] bun install skipped (npm will be used instead)" -ForegroundColor DarkGray
|
|
}
|
|
} else {
|
|
Write-Host "[OK] bun already installed ($(bun --version))" -ForegroundColor Green
|
|
}
|
|
}
|
|
|
|
# ============================================
|
|
# 1g. Python (>= 3.11 and < 3.14, matching setup.sh)
|
|
# ============================================
|
|
$HasPython = $null -ne (Get-Command python -ErrorAction SilentlyContinue)
|
|
$PythonOk = $false
|
|
|
|
if ($HasPython) {
|
|
$PyVer = python --version 2>&1
|
|
if ($PyVer -match "(\d+)\.(\d+)") {
|
|
$PyMajor = [int]$Matches[1]; $PyMinor = [int]$Matches[2]
|
|
if ($PyMajor -eq 3 -and $PyMinor -ge 11 -and $PyMinor -lt 14) {
|
|
Write-Host "[OK] Python $PyVer" -ForegroundColor Green
|
|
$PythonOk = $true
|
|
} else {
|
|
Write-Host "[ERROR] Python $PyVer is outside supported range (need >= 3.11 and < 3.14)." -ForegroundColor Red
|
|
Write-Host " Install Python 3.12 from https://python.org/downloads/" -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
}
|
|
} else {
|
|
# No Python at all -- install 3.12
|
|
Write-Host "Python not found -- installing Python 3.12 via winget..." -ForegroundColor Yellow
|
|
$HasWinget = $null -ne (Get-Command winget -ErrorAction SilentlyContinue)
|
|
if ($HasWinget) {
|
|
winget install -e --id Python.Python.3.12 --source winget --accept-package-agreements --accept-source-agreements
|
|
Refresh-Environment
|
|
}
|
|
$HasPython = $null -ne (Get-Command python -ErrorAction SilentlyContinue)
|
|
if (-not $HasPython) {
|
|
Write-Host "[ERROR] Python could not be installed automatically." -ForegroundColor Red
|
|
Write-Host " Install Python 3.12 from https://python.org/downloads/" -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
Write-Host "[OK] Python $(python --version)" -ForegroundColor Green
|
|
$PythonOk = $true
|
|
}
|
|
|
|
# Ensure Python Scripts dir is on PATH (so 'unsloth' command works in new terminals)
|
|
$ScriptsDir = python -c "import sysconfig; print(sysconfig.get_path('scripts', 'nt_user') if __import__('os').path.exists(sysconfig.get_path('scripts', 'nt_user')) else sysconfig.get_path('scripts'))"
|
|
if ($LASTEXITCODE -eq 0 -and $ScriptsDir -and (Test-Path $ScriptsDir)) {
|
|
$UserPath = [Environment]::GetEnvironmentVariable('Path', 'User')
|
|
$UserPathEntries = if ($UserPath) { $UserPath.Split(';') } else { @() }
|
|
if (-not ($UserPathEntries | Where-Object { $_.TrimEnd('\') -eq $ScriptsDir })) {
|
|
$newUserPath = if ($UserPath) { "$ScriptsDir;$UserPath" } else { $ScriptsDir }
|
|
[Environment]::SetEnvironmentVariable('Path', $newUserPath, 'User')
|
|
|
|
# Also add to current process so it's available immediately
|
|
$ProcessPathEntries = $env:PATH.Split(';')
|
|
if (-not ($ProcessPathEntries | Where-Object { $_.TrimEnd('\') -eq $ScriptsDir })) {
|
|
$env:PATH = "$ScriptsDir;$env:PATH"
|
|
}
|
|
Write-Host " Persisted Python Scripts dir to user PATH: $ScriptsDir" -ForegroundColor Gray
|
|
}
|
|
}
|
|
|
|
Write-Host ""
|
|
Write-Host "--- System prerequisites ready ---" -ForegroundColor Green
|
|
Write-Host ""
|
|
|
|
# ==========================================================================
|
|
# PHASE 2: Frontend build (skip if pip-installed -- already bundled)
|
|
# ==========================================================================
|
|
$DistDir = Join-Path $FrontendDir "dist"
|
|
# Skip build if dist/ exists and no tracked input is newer than dist/.
|
|
# Checks src/, public/, package.json, config files -- not just src/.
|
|
$NeedFrontendBuild = $true
|
|
if ($IsPipInstall) {
|
|
$NeedFrontendBuild = $false
|
|
Write-Host "[OK] Running from pip install - frontend already bundled, skipping build" -ForegroundColor Green
|
|
} elseif (Test-Path $DistDir) {
|
|
$DistTime = (Get-Item $DistDir).LastWriteTime
|
|
$NewerFile = $null
|
|
# Check src/ and public/ recursively (probe paths directly, not via -Include)
|
|
foreach ($subDir in @("src", "public")) {
|
|
$subPath = Join-Path $FrontendDir $subDir
|
|
if (Test-Path $subPath) {
|
|
$NewerFile = Get-ChildItem -Path $subPath -Recurse -File -ErrorAction SilentlyContinue |
|
|
Where-Object { $_.LastWriteTime -gt $DistTime } | Select-Object -First 1
|
|
if ($NewerFile) { break }
|
|
}
|
|
}
|
|
# Also check all top-level files (package.json, vite.config.ts, index.html, etc.)
|
|
if (-not $NewerFile) {
|
|
$NewerFile = Get-ChildItem -Path $FrontendDir -File -ErrorAction SilentlyContinue |
|
|
Where-Object { $_.Name -ne "bun.lock" -and $_.LastWriteTime -gt $DistTime } |
|
|
Select-Object -First 1
|
|
}
|
|
if (-not $NewerFile) {
|
|
$NeedFrontendBuild = $false
|
|
Write-Host "[OK] Frontend already built and up to date -- skipping build" -ForegroundColor Green
|
|
} else {
|
|
Write-Host "[INFO] Frontend source changed since last build -- rebuilding..." -ForegroundColor Yellow
|
|
}
|
|
}
|
|
if ($NeedFrontendBuild -and -not $IsPipInstall) {
|
|
Write-Host ""
|
|
Write-Host "Building frontend..." -ForegroundColor Cyan
|
|
|
|
# ── Tailwind v4 .gitignore workaround ──
|
|
# Tailwind v4's oxide scanner respects .gitignore in parent directories.
|
|
# Python venvs create a .gitignore with "*" (ignore everything), which
|
|
# prevents Tailwind from scanning .tsx source files for class names.
|
|
# Temporarily hide any such .gitignore during the build, then restore it.
|
|
$HiddenGitignores = @()
|
|
$WalkDir = (Get-Item $FrontendDir).Parent.FullName
|
|
while ($WalkDir -and $WalkDir -ne [System.IO.Path]::GetPathRoot($WalkDir)) {
|
|
$gi = Join-Path $WalkDir ".gitignore"
|
|
if (Test-Path $gi) {
|
|
$content = Get-Content $gi -Raw -ErrorAction SilentlyContinue
|
|
if ($content -and ($content.Trim() -match '^\*$')) {
|
|
$hidden = "$gi._twbuild"
|
|
Rename-Item -Path $gi -NewName (Split-Path $hidden -Leaf) -Force
|
|
$HiddenGitignores += $gi
|
|
Write-Host " [INFO] Temporarily hiding $gi (venv .gitignore blocks Tailwind scanner)" -ForegroundColor DarkGray
|
|
}
|
|
}
|
|
$WalkDir = Split-Path $WalkDir -Parent
|
|
}
|
|
|
|
# Use bun if available (faster install), fall back to npm.
|
|
# Bun is used only as package manager; Node runs the actual build (Vite 8).
|
|
$prevEAP_npm = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
Push-Location $FrontendDir
|
|
|
|
$UseBun = $null -ne (Get-Command bun -ErrorAction SilentlyContinue)
|
|
|
|
if ($UseBun) {
|
|
Write-Host " Using bun for package install (faster)" -ForegroundColor DarkGray
|
|
& bun install *> $null
|
|
$bunExit = $LASTEXITCODE
|
|
if ($bunExit -ne 0) {
|
|
Write-Host " [WARN] bun install failed (exit $bunExit), falling back to npm" -ForegroundColor Yellow
|
|
if (Test-Path "node_modules") {
|
|
Remove-Item "node_modules" -Recurse -Force -ErrorAction SilentlyContinue
|
|
}
|
|
$UseBun = $false
|
|
}
|
|
}
|
|
if (-not $UseBun) {
|
|
& npm install *> $null
|
|
$npmExit = $LASTEXITCODE
|
|
if ($npmExit -ne 0) {
|
|
Pop-Location
|
|
$ErrorActionPreference = $prevEAP_npm
|
|
foreach ($gi in $HiddenGitignores) { Rename-Item -Path "$gi._twbuild" -NewName (Split-Path $gi -Leaf) -Force -ErrorAction SilentlyContinue }
|
|
Write-Host "[ERROR] npm install failed (exit code $npmExit)" -ForegroundColor Red
|
|
Write-Host " Try running 'npm install' manually in frontend/ to see errors" -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
}
|
|
|
|
# Always use npm to run the build (Node runtime — avoids bun Windows runtime issues)
|
|
& npm run build *> $null
|
|
$buildExit = $LASTEXITCODE
|
|
if ($buildExit -ne 0) {
|
|
Pop-Location
|
|
$ErrorActionPreference = $prevEAP_npm
|
|
foreach ($gi in $HiddenGitignores) { Rename-Item -Path "$gi._twbuild" -NewName (Split-Path $gi -Leaf) -Force -ErrorAction SilentlyContinue }
|
|
Write-Host "[ERROR] npm run build failed (exit code $buildExit)" -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
Pop-Location
|
|
$ErrorActionPreference = $prevEAP_npm
|
|
|
|
# ── Restore hidden .gitignore files ──
|
|
foreach ($gi in $HiddenGitignores) {
|
|
Rename-Item -Path "$gi._twbuild" -NewName (Split-Path $gi -Leaf) -Force -ErrorAction SilentlyContinue
|
|
}
|
|
|
|
# ── Validate CSS output ──
|
|
$CssFiles = Get-ChildItem (Join-Path $DistDir "assets") -Filter "*.css" -ErrorAction SilentlyContinue
|
|
$MaxCssSize = ($CssFiles | Measure-Object -Property Length -Maximum).Maximum
|
|
if ($MaxCssSize -lt 100000) {
|
|
Write-Host "[WARN] Largest CSS file is only $([math]::Round($MaxCssSize / 1024))KB -- Tailwind may not have scanned all source files." -ForegroundColor Yellow
|
|
Write-Host " Expected >100KB. Check for .gitignore files blocking the Tailwind oxide scanner." -ForegroundColor Yellow
|
|
} else {
|
|
Write-Host "[OK] Frontend built to frontend/dist (CSS: $([math]::Round($MaxCssSize / 1024))KB)" -ForegroundColor Green
|
|
}
|
|
}
|
|
|
|
if (Test-Path $OxcValidatorDir) {
|
|
Write-Host "Installing OXC validator runtime..." -ForegroundColor Cyan
|
|
$prevEAP_oxc = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
Push-Location $OxcValidatorDir
|
|
npm install 2>&1 | Out-Null
|
|
if ($LASTEXITCODE -ne 0) {
|
|
Pop-Location
|
|
$ErrorActionPreference = $prevEAP_oxc
|
|
Write-Host "[ERROR] OXC validator npm install failed (exit code $LASTEXITCODE)" -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
Pop-Location
|
|
$ErrorActionPreference = $prevEAP_oxc
|
|
Write-Host "[OK] OXC validator runtime installed" -ForegroundColor Green
|
|
}
|
|
|
|
# ==========================================================================
|
|
# PHASE 3: Python environment + dependencies
|
|
# ==========================================================================
|
|
Write-Host ""
|
|
Write-Host "Setting up Python environment..." -ForegroundColor Cyan
|
|
|
|
# Find Python -- skip Anaconda/Miniconda distributions.
|
|
# Conda-bundled CPython ships modified DLL search paths that break
|
|
# torch's c10.dll loading on Windows. Standalone CPython (python.org,
|
|
# winget, uv) does not have this issue.
|
|
# Uses Get-Command -All to look past conda entries that shadow a valid
|
|
# standalone Python further down PATH, and probes py.exe (the Python
|
|
# Launcher) which reliably finds python.org installs.
|
|
#
|
|
# NOTE: A venv created from conda Python inherits conda's base_prefix
|
|
# even though the venv path itself does not contain "conda". We check
|
|
# both the executable path AND sys.base_prefix to catch this case.
|
|
$CondaSkipPattern = '(?i)(conda|miniconda|anaconda|miniforge|mambaforge)'
|
|
$PythonCmd = $null
|
|
|
|
# Helper: check if a Python executable is conda-based by inspecting
|
|
# both the path and sys.base_prefix (catches venvs created from conda).
|
|
function Test-IsConda {
|
|
param([string]$Exe)
|
|
if ($Exe -match $CondaSkipPattern) { return $true }
|
|
try {
|
|
$basePrefix = (& $Exe -c "import sys; print(sys.base_prefix)" 2>$null | Out-String).Trim()
|
|
if ($basePrefix -match $CondaSkipPattern) { return $true }
|
|
} catch { }
|
|
return $false
|
|
}
|
|
|
|
# 1. Try the Python Launcher (py.exe) first -- most reliable on Windows.
|
|
# py.exe is installed by python.org and resolves to standalone CPython.
|
|
$pyLauncher = Get-Command py -CommandType Application -ErrorAction SilentlyContinue
|
|
if ($pyLauncher -and $pyLauncher.Source -notmatch $CondaSkipPattern) {
|
|
foreach ($minor in @("3.13", "3.12", "3.11")) {
|
|
try {
|
|
$out = & $pyLauncher.Source "-$minor" --version 2>&1 | Out-String
|
|
if ($out -match 'Python 3\.(\d+)') {
|
|
$pyMinor = [int]$Matches[1]
|
|
if ($pyMinor -ge 11 -and $pyMinor -le 13) {
|
|
# Resolve the actual executable path so venv creation
|
|
# does not re-resolve back to a conda interpreter.
|
|
$resolvedExe = (& $pyLauncher.Source "-$minor" -c "import sys; print(sys.executable)" 2>$null | Out-String).Trim()
|
|
if ($resolvedExe -and (Test-Path $resolvedExe) -and -not (Test-IsConda $resolvedExe)) {
|
|
$PythonCmd = $resolvedExe
|
|
break
|
|
}
|
|
}
|
|
}
|
|
} catch { }
|
|
}
|
|
}
|
|
|
|
# 2. Fall back to scanning python3.x / python3 / python on PATH.
|
|
# Use Get-Command -All to look past conda entries.
|
|
if (-not $PythonCmd) {
|
|
foreach ($candidate in @("python3.13", "python3.12", "python3.11", "python3", "python")) {
|
|
foreach ($cmdInfo in @(Get-Command $candidate -All -ErrorAction SilentlyContinue)) {
|
|
try {
|
|
if (-not $cmdInfo.Source) { continue }
|
|
if ($cmdInfo.Source -like "*\WindowsApps\*") { continue }
|
|
if (Test-IsConda $cmdInfo.Source) {
|
|
Write-Host " [SKIP] $($cmdInfo.Source) (conda Python breaks torch DLL loading)" -ForegroundColor Yellow
|
|
continue
|
|
}
|
|
$ver = & $cmdInfo.Source --version 2>&1
|
|
if ($ver -match 'Python 3\.(\d+)') {
|
|
$minor = [int]$Matches[1]
|
|
if ($minor -ge 11 -and $minor -le 13) {
|
|
$PythonCmd = $cmdInfo.Source
|
|
break
|
|
}
|
|
}
|
|
} catch { }
|
|
}
|
|
if ($PythonCmd) { break }
|
|
}
|
|
}
|
|
|
|
if (-not $PythonCmd) {
|
|
Write-Host "[ERROR] No standalone Python 3.11-3.13 found (conda Python is not supported)." -ForegroundColor Red
|
|
Write-Host " Install Python from https://python.org/downloads/ or via:" -ForegroundColor Yellow
|
|
Write-Host " winget install -e --id Python.Python.3.12" -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
|
|
Write-Host "[OK] Using $PythonCmd ($(& $PythonCmd --version 2>&1))" -ForegroundColor Green
|
|
|
|
# Always create a .venv for isolation -- even for pip installs.
|
|
# Created in the repo root (parent of studio/).
|
|
$VenvDir = Join-Path $env:USERPROFILE ".unsloth\studio\.venv"
|
|
|
|
# Stale-venv detection: if the venv exists but its torch flavor no longer
|
|
# matches the current machine, wipe it so we get a clean install.
|
|
if (Test-Path $VenvDir -PathType Container) {
|
|
$VenvPyExe = Join-Path $VenvDir "Scripts\python.exe"
|
|
$installedTorchTag = $null
|
|
$shouldRebuild = $false
|
|
|
|
if (Test-Path $VenvPyExe) {
|
|
try {
|
|
$psi = New-Object System.Diagnostics.ProcessStartInfo
|
|
$psi.FileName = $VenvPyExe
|
|
$psi.Arguments = '-c "import torch; print(torch.__version__)"'
|
|
$psi.RedirectStandardOutput = $true
|
|
$psi.RedirectStandardError = $true
|
|
$psi.UseShellExecute = $false
|
|
$psi.CreateNoWindow = $true
|
|
$proc = [System.Diagnostics.Process]::Start($psi)
|
|
$torchVer = $proc.StandardOutput.ReadToEnd().Trim()
|
|
$finished = $proc.WaitForExit(30000)
|
|
if ($finished -and $proc.ExitCode -eq 0 -and $torchVer) {
|
|
if ($torchVer -match '\+(cu\d+)') {
|
|
$installedTorchTag = $Matches[1]
|
|
} elseif ($torchVer -match '\+cpu') {
|
|
$installedTorchTag = "cpu"
|
|
} else {
|
|
# Untagged wheel (plain "2.x.y" from PyPI) -- treat as cpu
|
|
$installedTorchTag = "cpu"
|
|
}
|
|
} else {
|
|
if (-not $finished) { try { $proc.Kill() } catch {} }
|
|
$shouldRebuild = $true
|
|
}
|
|
} catch {
|
|
$shouldRebuild = $true
|
|
}
|
|
} else {
|
|
# Missing python.exe means the venv is incomplete -- rebuild it.
|
|
$shouldRebuild = $true
|
|
}
|
|
|
|
if (-not $shouldRebuild) {
|
|
$expectedTorchTag = if ($HasNvidiaSmi) { Get-PytorchCudaTag } else { "cpu" }
|
|
if ($installedTorchTag -and $installedTorchTag -ne $expectedTorchTag) {
|
|
$shouldRebuild = $true
|
|
}
|
|
}
|
|
|
|
if ($shouldRebuild) {
|
|
$reason = if ($installedTorchTag) { "torch $installedTorchTag != required $expectedTorchTag" } else { "torch could not be imported" }
|
|
Write-Host " [INFO] Stale venv detected ($reason) -- rebuilding..." -ForegroundColor Yellow
|
|
try {
|
|
Remove-Item $VenvDir -Recurse -Force -ErrorAction Stop
|
|
} catch {
|
|
Write-Host " [ERROR] Could not remove stale venv: $($_.Exception.Message)" -ForegroundColor Red
|
|
Write-Host " Close any running Studio/Python processes and re-run setup." -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
}
|
|
}
|
|
|
|
if (-not (Test-Path $VenvDir)) {
|
|
Write-Host " Creating virtual environment at $VenvDir..." -ForegroundColor Cyan
|
|
& $PythonCmd -m venv $VenvDir
|
|
} else {
|
|
Write-Host " Reusing existing virtual environment at $VenvDir" -ForegroundColor Green
|
|
}
|
|
|
|
# pip and python write to stderr even on success (progress bars, warnings).
|
|
# With $ErrorActionPreference = "Stop" (set at top of script), PS 5.1
|
|
# converts stderr lines into terminating ErrorRecords, breaking output.
|
|
# Lower to "Continue" for the pip/python section.
|
|
$prevEAP = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
|
|
$ActivateScript = Join-Path $VenvDir "Scripts\Activate.ps1"
|
|
. $ActivateScript
|
|
|
|
# Try to use uv (much faster than pip), fall back to pip if unavailable
|
|
$UseUv = $false
|
|
if (Get-Command uv -ErrorAction SilentlyContinue) {
|
|
$UseUv = $true
|
|
} else {
|
|
Write-Host " Installing uv package manager..." -ForegroundColor Cyan
|
|
try {
|
|
powershell -ExecutionPolicy ByPass -c "irm https://astral.sh/uv/install.ps1 | iex" 2>&1 | Out-Null
|
|
Refresh-Environment
|
|
# Re-activate venv since Refresh-Environment rebuilds PATH from
|
|
# registry and drops the venv's Scripts directory
|
|
. $ActivateScript
|
|
if (Get-Command uv -ErrorAction SilentlyContinue) { $UseUv = $true }
|
|
} catch { }
|
|
}
|
|
|
|
# Helper: install a package, preferring uv with pip fallback
|
|
function Fast-Install {
|
|
param([Parameter(ValueFromRemainingArguments=$true)]$Args_)
|
|
if ($UseUv) {
|
|
$VenvPy = (Get-Command python).Source
|
|
$result = & uv pip install --python $VenvPy @Args_ 2>&1
|
|
if ($LASTEXITCODE -eq 0) { return }
|
|
}
|
|
& python -m pip install @Args_ 2>&1
|
|
}
|
|
|
|
Fast-Install --upgrade pip | Out-Null
|
|
|
|
# if (-not $IsPipInstall) {
|
|
# # Running from repo: copy requirements and do editable install
|
|
# $RepoRoot = (Resolve-Path (Join-Path $ScriptDir "..\..")).Path
|
|
# $ReqsSrc = Join-Path $RepoRoot "backend\requirements"
|
|
# $ReqsDst = Join-Path $PackageDir "requirements"
|
|
# if (-not (Test-Path $ReqsDst)) { New-Item -ItemType Directory -Path $ReqsDst | Out-Null }
|
|
# Copy-Item (Join-Path $ReqsSrc "*.txt") $ReqsDst -Force
|
|
|
|
# Write-Host " Installing CLI entry point..." -ForegroundColor Cyan
|
|
# pip install -e $RepoRoot 2>&1 | Out-Null
|
|
# } else {
|
|
# # Running from pip install: the package is in system Python but not in
|
|
# # the fresh .venv. Install it so run_install() can find its modules
|
|
# # and bundled requirements files.
|
|
# Write-Host " Installing package into venv..." -ForegroundColor Cyan
|
|
# pip install unsloth-roland-test 2>&1 | Out-Null
|
|
# }
|
|
|
|
# Pre-install PyTorch with CUDA support.
|
|
# On Windows, the default PyPI torch wheel is CPU-only.
|
|
# We need PyTorch's CUDA index to get GPU-enabled wheels.
|
|
# PyTorch bundles its own CUDA runtime, so this works regardless
|
|
# of whether the CUDA Toolkit is installed yet.
|
|
# The CUDA tag is chosen based on the driver's max supported CUDA version.
|
|
|
|
# Windows MAX_PATH (260 chars) causes Triton kernel compilation to fail because
|
|
# the auto-generated filenames are extremely long. Use a short cache directory.
|
|
$TorchCacheDir = "C:\tc"
|
|
if (-not (Test-Path $TorchCacheDir)) { New-Item -ItemType Directory -Path $TorchCacheDir -Force | Out-Null }
|
|
$env:TORCHINDUCTOR_CACHE_DIR = $TorchCacheDir
|
|
[Environment]::SetEnvironmentVariable('TORCHINDUCTOR_CACHE_DIR', $TorchCacheDir, 'User')
|
|
Write-Host "[OK] TORCHINDUCTOR_CACHE_DIR set to $TorchCacheDir (avoids MAX_PATH issues)" -ForegroundColor Green
|
|
|
|
if ($HasNvidiaSmi) {
|
|
$CuTag = Get-PytorchCudaTag
|
|
} else {
|
|
$CuTag = "cpu"
|
|
}
|
|
|
|
if ($CuTag -eq "cpu") {
|
|
Write-Host " Installing PyTorch (CPU-only)..." -ForegroundColor Cyan
|
|
$output = Fast-Install torch torchvision torchaudio --index-url "https://download.pytorch.org/whl/cpu" | Out-String
|
|
if ($LASTEXITCODE -ne 0) {
|
|
Write-Host "[FAILED] PyTorch install failed (exit code $LASTEXITCODE)" -ForegroundColor Red
|
|
Write-Host $output -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
} else {
|
|
Write-Host " Installing PyTorch with CUDA support ($CuTag)..." -ForegroundColor Cyan
|
|
Write-Host " (This download is ~2.8 GB -- may take a few minutes)" -ForegroundColor Gray
|
|
$output = Fast-Install torch torchvision torchaudio --index-url "https://download.pytorch.org/whl/$CuTag" | Out-String
|
|
if ($LASTEXITCODE -ne 0) {
|
|
Write-Host "[FAILED] PyTorch CUDA install failed (exit code $LASTEXITCODE)" -ForegroundColor Red
|
|
Write-Host $output -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
|
|
# Install Triton for Windows (enables torch.compile -- without it training can hang)
|
|
Write-Host " Installing Triton for Windows..." -ForegroundColor Cyan
|
|
$output = Fast-Install "triton-windows<3.7" | Out-String
|
|
if ($LASTEXITCODE -ne 0) {
|
|
Write-Host "[WARN] Triton install failed -- torch.compile may not work" -ForegroundColor Yellow
|
|
Write-Host $output -ForegroundColor Yellow
|
|
} else {
|
|
Write-Host "[OK] Triton for Windows installed (enables torch.compile)" -ForegroundColor Green
|
|
}
|
|
}
|
|
|
|
# Ordered heavy dependency installation -- shared cross-platform script
|
|
Write-Host " Running ordered dependency installation..." -ForegroundColor Cyan
|
|
python "$PSScriptRoot\install_python_stack.py"
|
|
# Restore ErrorActionPreference after pip/python work
|
|
$ErrorActionPreference = $prevEAP
|
|
|
|
# ── Pre-install transformers 5.x into .venv_t5/ ──
|
|
# Models like GLM-4.7-Flash need transformers>=5.3.0. Instead of pip-installing
|
|
# at runtime (slow, ~10-15s), we pre-install into a separate directory.
|
|
# The training subprocess just prepends .venv_t5/ to sys.path -- instant switch.
|
|
Write-Host ""
|
|
Write-Host " Pre-installing transformers 5.x for newer model support..." -ForegroundColor Cyan
|
|
$VenvT5Dir = Join-Path $env:USERPROFILE ".unsloth\studio\.venv_t5"
|
|
if (Test-Path $VenvT5Dir) { Remove-Item -Recurse -Force $VenvT5Dir }
|
|
New-Item -ItemType Directory -Path $VenvT5Dir -Force | Out-Null
|
|
$prevEAP_t5 = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
foreach ($pkg in @("transformers==5.3.0", "huggingface_hub==1.7.1", "hf_xet==1.4.2")) {
|
|
$output = Fast-Install --target $VenvT5Dir --no-deps $pkg | Out-String
|
|
if ($LASTEXITCODE -ne 0) {
|
|
Write-Host "[FAIL] Could not install $pkg into .venv_t5/" -ForegroundColor Red
|
|
Write-Host $output -ForegroundColor Red
|
|
$ErrorActionPreference = $prevEAP_t5
|
|
exit 1
|
|
}
|
|
}
|
|
# tiktoken is needed by Qwen-family tokenizers -- install with deps since
|
|
# regex/requests may be missing on Windows
|
|
$output = Fast-Install --target $VenvT5Dir tiktoken | Out-String
|
|
if ($LASTEXITCODE -ne 0) {
|
|
Write-Host "[WARN] Could not install tiktoken into .venv_t5/ -- Qwen tokenizers may fail" -ForegroundColor Yellow
|
|
}
|
|
$ErrorActionPreference = $prevEAP_t5
|
|
Write-Host "[OK] Transformers 5.x pre-installed to .venv_t5/" -ForegroundColor Green
|
|
|
|
# ==========================================================================
|
|
# PHASE 3.5: Install OpenSSL dev (for HTTPS support in llama-server)
|
|
# ==========================================================================
|
|
# llama-server needs OpenSSL to download models from HuggingFace via -hf.
|
|
# ShiningLight.OpenSSL.Dev includes headers + libs that cmake can find.
|
|
$OpenSslAvailable = $false
|
|
|
|
# Check if OpenSSL dev is already installed (look for include dir)
|
|
$OpenSslRoots = @(
|
|
'C:\Program Files\OpenSSL-Win64',
|
|
'C:\Program Files\OpenSSL',
|
|
'C:\OpenSSL-Win64'
|
|
)
|
|
$OpenSslRoot = $null
|
|
foreach ($root in $OpenSslRoots) {
|
|
if (Test-Path (Join-Path $root 'include\openssl\ssl.h')) {
|
|
$OpenSslRoot = $root
|
|
break
|
|
}
|
|
}
|
|
|
|
if ($OpenSslRoot) {
|
|
$OpenSslAvailable = $true
|
|
Write-Host "[OK] OpenSSL dev found at $OpenSslRoot" -ForegroundColor Green
|
|
} else {
|
|
Write-Host ""
|
|
Write-Host "Installing OpenSSL dev (for HTTPS in llama-server)..." -ForegroundColor Cyan
|
|
$HasWinget = $null -ne (Get-Command winget -ErrorAction SilentlyContinue)
|
|
if ($HasWinget) {
|
|
winget install -e --id ShiningLight.OpenSSL.Dev --accept-package-agreements --accept-source-agreements
|
|
# Re-check after install
|
|
foreach ($root in $OpenSslRoots) {
|
|
if (Test-Path (Join-Path $root 'include\openssl\ssl.h')) {
|
|
$OpenSslRoot = $root
|
|
$OpenSslAvailable = $true
|
|
Write-Host "[OK] OpenSSL dev installed at $OpenSslRoot" -ForegroundColor Green
|
|
break
|
|
}
|
|
}
|
|
}
|
|
if (-not $OpenSslAvailable) {
|
|
Write-Host "[WARN] OpenSSL dev not available -- llama-server will be built without HTTPS" -ForegroundColor Yellow
|
|
}
|
|
}
|
|
|
|
# ==========================================================================
|
|
# PHASE 4: Build llama.cpp with CUDA for GGUF inference + export
|
|
# ==========================================================================
|
|
# Builds at ~/.unsloth/llama.cpp — a single shared location under the user's
|
|
# home directory. This is used by both the inference server and the GGUF
|
|
# export pipeline (unsloth-zoo).
|
|
# We build:
|
|
# - llama-server: for GGUF model inference (with HTTPS if OpenSSL available)
|
|
# - llama-quantize: for GGUF export quantization
|
|
# Prerequisites (git, cmake, VS Build Tools, CUDA Toolkit) already installed in Phase 1.
|
|
$UnslothHome = Join-Path $env:USERPROFILE ".unsloth"
|
|
if (-not (Test-Path $UnslothHome)) { New-Item -ItemType Directory -Force $UnslothHome | Out-Null }
|
|
$LlamaCppDir = Join-Path $UnslothHome "llama.cpp"
|
|
$BuildDir = Join-Path $LlamaCppDir "build"
|
|
$LlamaServerBin = Join-Path $BuildDir "bin\Release\llama-server.exe"
|
|
|
|
$HasCmakeForBuild = $null -ne (Get-Command cmake -ErrorAction SilentlyContinue)
|
|
|
|
# Check if existing llama-server matches current GPU mode. A CUDA-built binary
|
|
# on a now-CPU-only machine (or vice versa) needs to be rebuilt.
|
|
$NeedRebuild = $false
|
|
if (Test-Path $LlamaServerBin) {
|
|
$CmakeCacheFile = Join-Path $BuildDir "CMakeCache.txt"
|
|
if (Test-Path $CmakeCacheFile) {
|
|
$cachedCuda = Select-String -Path $CmakeCacheFile -Pattern 'GGML_CUDA:BOOL=ON' -Quiet
|
|
if ($HasNvidiaSmi -and -not $cachedCuda) {
|
|
Write-Host " Existing llama-server is CPU-only but GPU is available -- rebuilding" -ForegroundColor Yellow
|
|
$NeedRebuild = $true
|
|
} elseif (-not $HasNvidiaSmi -and $cachedCuda) {
|
|
Write-Host " Existing llama-server was built with CUDA but no GPU detected -- rebuilding" -ForegroundColor Yellow
|
|
$NeedRebuild = $true
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((Test-Path $LlamaServerBin) -and -not $NeedRebuild) {
|
|
Write-Host ""
|
|
Write-Host "[OK] llama-server already exists at $LlamaServerBin" -ForegroundColor Green
|
|
} elseif (-not $HasCmakeForBuild) {
|
|
Write-Host ""
|
|
if (-not $HasNvidiaSmi) {
|
|
# CPU-only machines depend entirely on llama-server for GGUF chat -- cmake is required
|
|
Write-Host "[ERROR] CMake is required to build llama-server for GGUF chat mode." -ForegroundColor Red
|
|
Write-Host " Install CMake from https://cmake.org/download/ and re-run setup." -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
Write-Host "[SKIP] llama-server build -- cmake not available" -ForegroundColor Yellow
|
|
Write-Host " GGUF inference and export will not be available." -ForegroundColor Yellow
|
|
Write-Host " Install CMake from https://cmake.org/download/ and re-run setup." -ForegroundColor Yellow
|
|
} else {
|
|
Write-Host ""
|
|
if ($HasNvidiaSmi) {
|
|
Write-Host "Building llama.cpp with CUDA support..." -ForegroundColor Cyan
|
|
} else {
|
|
Write-Host "Building llama.cpp (CPU-only, no NVIDIA GPU detected)..." -ForegroundColor Cyan
|
|
}
|
|
Write-Host " This typically takes 5-10 minutes on first build." -ForegroundColor Gray
|
|
Write-Host ""
|
|
|
|
# Start total build timer
|
|
$totalSw = [System.Diagnostics.Stopwatch]::StartNew()
|
|
|
|
# Native commands (git, cmake) write to stderr even on success.
|
|
# With $ErrorActionPreference = "Stop" (set at top of script), PS 5.1
|
|
# converts stderr lines into terminating ErrorRecords, breaking output.
|
|
# Lower to "Continue" for the build section.
|
|
$prevEAP = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
|
|
$BuildOk = $true
|
|
$FailedStep = ""
|
|
|
|
# Re-sanitize CUDA_PATH_V* vars — Refresh-Environment (called during
|
|
# Node/Python installs above) may have repopulated conflicting versioned
|
|
# vars from the Machine registry.
|
|
if ($HasNvidiaSmi -and $CudaToolkitRoot) {
|
|
$cudaPathVars2 = @([Environment]::GetEnvironmentVariables('Process').Keys | Where-Object { $_ -match '^CUDA_PATH_V' })
|
|
foreach ($v2 in $cudaPathVars2) {
|
|
[Environment]::SetEnvironmentVariable($v2, $null, 'Process')
|
|
}
|
|
$tkDirName2 = Split-Path $CudaToolkitRoot -Leaf
|
|
if ($tkDirName2 -match '^v(\d+)\.(\d+)') {
|
|
[Environment]::SetEnvironmentVariable("CUDA_PATH_V$($Matches[1])_$($Matches[2])", $CudaToolkitRoot, 'Process')
|
|
}
|
|
# Also re-assert CUDA_PATH and CudaToolkitDir in case they were overwritten
|
|
[Environment]::SetEnvironmentVariable('CUDA_PATH', $CudaToolkitRoot, 'Process')
|
|
[Environment]::SetEnvironmentVariable('CudaToolkitDir', "$CudaToolkitRoot\", 'Process')
|
|
}
|
|
|
|
# -- Step A: Clone or pull llama.cpp --
|
|
|
|
if (Test-Path (Join-Path $LlamaCppDir ".git")) {
|
|
Write-Host " llama.cpp repo already cloned, pulling latest..." -ForegroundColor Gray
|
|
git -C $LlamaCppDir pull 2>&1 | Out-Null
|
|
if ($LASTEXITCODE -ne 0) {
|
|
Write-Host " [WARN] git pull failed -- using existing source" -ForegroundColor Yellow
|
|
}
|
|
} else {
|
|
Write-Host " Cloning llama.cpp..." -ForegroundColor Gray
|
|
if (Test-Path $LlamaCppDir) { Remove-Item -Recurse -Force $LlamaCppDir }
|
|
git clone --depth 1 https://github.com/ggml-org/llama.cpp.git $LlamaCppDir 2>&1 | Out-Null
|
|
if ($LASTEXITCODE -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git clone"
|
|
}
|
|
}
|
|
|
|
# -- Step B: cmake configure --
|
|
# Clean stale CMake cache to prevent previous CUDA settings from leaking
|
|
# into a CPU-only rebuild (or vice versa).
|
|
$CmakeCacheFile = Join-Path $BuildDir "CMakeCache.txt"
|
|
if (Test-Path $CmakeCacheFile) {
|
|
Remove-Item -Recurse -Force $BuildDir
|
|
}
|
|
|
|
if ($BuildOk) {
|
|
Write-Host ""
|
|
Write-Host "--- cmake configure ---" -ForegroundColor Cyan
|
|
|
|
$CmakeArgs = @(
|
|
'-S', $LlamaCppDir,
|
|
'-B', $BuildDir,
|
|
'-G', $CmakeGenerator,
|
|
'-Wno-dev'
|
|
)
|
|
# Tell cmake exactly where VS is (bypasses registry lookup)
|
|
if ($VsInstallPath) {
|
|
$CmakeArgs += "-DCMAKE_GENERATOR_INSTANCE=$VsInstallPath"
|
|
}
|
|
# Common flags
|
|
$CmakeArgs += '-DBUILD_SHARED_LIBS=OFF'
|
|
$CmakeArgs += '-DLLAMA_BUILD_TESTS=OFF'
|
|
$CmakeArgs += '-DLLAMA_BUILD_EXAMPLES=OFF'
|
|
$CmakeArgs += '-DLLAMA_BUILD_SERVER=ON'
|
|
$CmakeArgs += '-DGGML_NATIVE=ON'
|
|
# HTTPS support via OpenSSL
|
|
if ($OpenSslAvailable -and $OpenSslRoot) {
|
|
$CmakeArgs += "-DOPENSSL_ROOT_DIR=$OpenSslRoot"
|
|
$CmakeArgs += '-DLLAMA_OPENSSL=ON'
|
|
} else {
|
|
$CmakeArgs += '-DLLAMA_CURL=OFF'
|
|
}
|
|
$CmakeArgs += '-DCMAKE_EXE_LINKER_FLAGS=/NODEFAULTLIB:LIBCMT'
|
|
# CUDA flags -- only if GPU available, otherwise explicitly disable
|
|
if ($HasNvidiaSmi -and $NvccPath) {
|
|
$CmakeArgs += '-DGGML_CUDA=ON'
|
|
$CmakeArgs += "-DCUDAToolkit_ROOT=$CudaToolkitRoot"
|
|
$CmakeArgs += "-DCUDA_TOOLKIT_ROOT_DIR=$CudaToolkitRoot"
|
|
$CmakeArgs += "-DCMAKE_CUDA_COMPILER=$NvccPath"
|
|
if ($CudaArch) {
|
|
# Validate nvcc actually supports this architecture
|
|
if (Test-NvccArchSupport -NvccExe $NvccPath -Arch $CudaArch) {
|
|
$CmakeArgs += "-DCMAKE_CUDA_ARCHITECTURES=$CudaArch"
|
|
} else {
|
|
# GPU arch too new for this toolkit -- fall back to highest supported.
|
|
# PTX forward-compatibility will JIT-compile for the actual GPU at runtime.
|
|
$maxArch = Get-NvccMaxArch -NvccExe $NvccPath
|
|
if ($maxArch) {
|
|
$CmakeArgs += "-DCMAKE_CUDA_ARCHITECTURES=$maxArch"
|
|
Write-Host " [WARN] GPU is sm_$CudaArch but nvcc only supports up to sm_$maxArch" -ForegroundColor Yellow
|
|
Write-Host " Building with sm_$maxArch (PTX will JIT for your GPU at runtime)" -ForegroundColor Yellow
|
|
}
|
|
# else: omit flag entirely, let cmake pick defaults
|
|
}
|
|
}
|
|
} else {
|
|
$CmakeArgs += '-DGGML_CUDA=OFF'
|
|
}
|
|
|
|
$cmakeOutput = cmake @CmakeArgs 2>&1 | Out-String
|
|
if ($LASTEXITCODE -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "cmake configure"
|
|
Write-Host $cmakeOutput -ForegroundColor Red
|
|
if ($cmakeOutput -match 'No CUDA toolset found|CUDA_TOOLKIT_ROOT_DIR|nvcc') {
|
|
Write-Host ""
|
|
Write-Host " Hint: CUDA VS integration may be missing. Try running as admin:" -ForegroundColor Yellow
|
|
Write-Host " Copy contents of:" -ForegroundColor Yellow
|
|
Write-Host " <CUDA_PATH>\extras\visual_studio_integration\MSBuildExtensions" -ForegroundColor Yellow
|
|
Write-Host " into:" -ForegroundColor Yellow
|
|
Write-Host " <VS_PATH>\MSBuild\Microsoft\VC\v170\BuildCustomizations" -ForegroundColor Yellow
|
|
}
|
|
}
|
|
}
|
|
|
|
# -- Step C: Build llama-server --
|
|
$NumCpu = [Environment]::ProcessorCount
|
|
if ($NumCpu -lt 1) { $NumCpu = 4 }
|
|
|
|
if ($BuildOk) {
|
|
Write-Host ""
|
|
Write-Host "--- cmake build (llama-server) ---" -ForegroundColor Cyan
|
|
Write-Host " Parallel jobs: $NumCpu" -ForegroundColor Gray
|
|
Write-Host ""
|
|
|
|
$output = cmake --build $BuildDir --config Release --target llama-server -j $NumCpu 2>&1 | Out-String
|
|
if ($LASTEXITCODE -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "cmake build (llama-server)"
|
|
Write-Host $output -ForegroundColor Red
|
|
}
|
|
}
|
|
|
|
# -- Step D: Build llama-quantize (optional, best-effort) --
|
|
if ($BuildOk) {
|
|
Write-Host ""
|
|
Write-Host "--- cmake build (llama-quantize) ---" -ForegroundColor Cyan
|
|
$output = cmake --build $BuildDir --config Release --target llama-quantize -j $NumCpu 2>&1 | Out-String
|
|
if ($LASTEXITCODE -ne 0) {
|
|
Write-Host " [WARN] llama-quantize build failed (GGUF export may be unavailable)" -ForegroundColor Yellow
|
|
Write-Host $output -ForegroundColor Yellow
|
|
}
|
|
}
|
|
|
|
# Restore ErrorActionPreference
|
|
$ErrorActionPreference = $prevEAP
|
|
|
|
# Stop timer
|
|
$totalSw.Stop()
|
|
$totalMin = [math]::Floor($totalSw.Elapsed.TotalMinutes)
|
|
$totalSec = [math]::Round($totalSw.Elapsed.TotalSeconds % 60, 1)
|
|
|
|
# -- Summary --
|
|
Write-Host ""
|
|
if ($BuildOk -and (Test-Path $LlamaServerBin)) {
|
|
Write-Host "[OK] llama-server built at $LlamaServerBin" -ForegroundColor Green
|
|
$QuantizeBin = Join-Path $BuildDir "bin\Release\llama-quantize.exe"
|
|
if (Test-Path $QuantizeBin) {
|
|
Write-Host "[OK] llama-quantize available for GGUF export" -ForegroundColor Green
|
|
}
|
|
Write-Host " Build time: ${totalMin}m ${totalSec}s" -ForegroundColor Cyan
|
|
} else {
|
|
# Check alternate paths (some cmake generators don't use Release subdir)
|
|
$altBin = Join-Path $BuildDir "bin\llama-server.exe"
|
|
if ($BuildOk -and (Test-Path $altBin)) {
|
|
Write-Host "[OK] llama-server built at $altBin" -ForegroundColor Green
|
|
Write-Host " Build time: ${totalMin}m ${totalSec}s" -ForegroundColor Cyan
|
|
} else {
|
|
Write-Host "[FAILED] llama.cpp build failed at step: $FailedStep (${totalMin}m ${totalSec}s)" -ForegroundColor Red
|
|
Write-Host " To retry: delete $LlamaCppDir and re-run setup." -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
}
|
|
}
|
|
|
|
# ============================================
|
|
# Done
|
|
# ============================================
|
|
Write-Host ""
|
|
Write-Host "+===============================================+" -ForegroundColor Green
|
|
Write-Host "| Setup Complete! |" -ForegroundColor Green
|
|
Write-Host "| |" -ForegroundColor Green
|
|
Write-Host "| Launch with: |" -ForegroundColor Green
|
|
Write-Host "| unsloth studio -H 0.0.0.0 -p 8888 |" -ForegroundColor Green
|
|
Write-Host "| |" -ForegroundColor Green
|
|
Write-Host "+===============================================+" -ForegroundColor Green
|