mirror of
https://github.com/unslothai/unsloth.git
synced 2026-07-10 00:08:58 +00:00
fcb1152c76
* Studio: source CPU llama.cpp prebuilts from the unslothai fork * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Studio: reject unknown Linux CPU arches and keep ROCm-tooling hosts off the CPU prebuilt * Studio: extend the resolve-prebuilt ROCm-tooling guard to Windows * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Studio: let ROCm-SDK-only CPU hosts take the fork CPU prebuilt * Studio: accept windows-arm64 prebuilt kind and refresh stale fork-routing comments * Studio: correct stale fork-routing comments and --resolve-prebuilt help * Refresh stale ggml-org routing comments --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Daniel Han <danielhanchen@gmail.com>
4046 lines
196 KiB
PowerShell
4046 lines
196 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
|
|
Uses an isolated, Unsloth-managed Node.js for the frontend build when the
|
|
system Node/npm do not meet requirements (never modifies the system Node).
|
|
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
|
|
Default output is minimal (step/substep), aligned with studio/setup.sh.
|
|
|
|
FULL / LEGACY LOGGING (defensible audit trail, detailed multi-line output):
|
|
unsloth studio setup --verbose
|
|
Or: $env:UNSLOTH_VERBOSE='1'; powershell -File .\studio\setup.ps1
|
|
Or: .\setup.ps1 --verbose
|
|
#>
|
|
|
|
$ErrorActionPreference = "Stop"
|
|
$ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
|
|
$PackageDir = Split-Path -Parent $ScriptDir
|
|
|
|
# --------------------------------------------------------------------------
|
|
# Maintainer-editable defaults
|
|
# Change these in the GitHub-hosted script so users get updated defaults.
|
|
# User env vars always override these baked-in values.
|
|
# --------------------------------------------------------------------------
|
|
# Prefer "latest" over "master" -- "master" bypasses the prebuilt resolver
|
|
# (no matching GitHub release), forces a source build, and causes HTTP 422
|
|
# errors. Only use "master" temporarily when the latest release is missing
|
|
# support for a new model architecture.
|
|
$DefaultLlamaPrForce = ""
|
|
$DefaultLlamaSource = "https://github.com/ggml-org/llama.cpp"
|
|
$DefaultLlamaTag = "latest"
|
|
$DefaultLlamaForceCompileRef = "master"
|
|
|
|
# Corporate-mirror / proxy escape hatch for the frontend npm/bun install (#6491).
|
|
# studio/frontend/.npmrc pins registry=https://registry.npmjs.org/ as a supply-chain
|
|
# lock, which overrides a corporate user's ~/.npmrc proxy and causes 403s behind a
|
|
# firewall. UNSLOTH_NPM_REGISTRY is a deliberate opt-in: when set we splat it as
|
|
# `--registry <url>` into every npm/bun install. `--registry` is the highest-precedence
|
|
# override for BOTH tools and leaves min-release-age / save-exact in force. Empty array
|
|
# (the default) splats to nothing, so normal installs are unchanged.
|
|
$NpmRegistryArgs = @()
|
|
if ($env:UNSLOTH_NPM_REGISTRY) {
|
|
$NpmRegistryArgs = @('--registry', $env:UNSLOTH_NPM_REGISTRY)
|
|
}
|
|
|
|
# Verbose can be enabled either by CLI flag or by UNSLOTH_VERBOSE=1.
|
|
$script:UnslothVerbose = ($env:UNSLOTH_VERBOSE -eq '1')
|
|
foreach ($a in $args) {
|
|
if ($a -eq '--verbose' -or $a -eq '-v') {
|
|
$script:UnslothVerbose = $true
|
|
break
|
|
}
|
|
}
|
|
# Propagate to child processes (e.g. install_python_stack.py) so they
|
|
# also respect verbose mode. Process-scoped -- does not persist.
|
|
if ($script:UnslothVerbose) {
|
|
$env:UNSLOTH_VERBOSE = '1'
|
|
}
|
|
$script:LlamaCppDegraded = $false
|
|
# CUDA toolkit state, published by Resolve-CudaToolkit. Only the Phase 4 source
|
|
# build consumes these; the prebuilt path leaves them at these defaults.
|
|
$script:CudaToolkitReady = $false
|
|
$script:NvccPath = $null
|
|
$script:CudaToolkitRoot = $null
|
|
$script:CudaArch = $null
|
|
|
|
# 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')
|
|
# Merge: venv Scripts (if active) > Machine > User > current $env:Path. Dedup raw+expanded.
|
|
$venvScripts = if ($env:VIRTUAL_ENV) { Join-Path $env:VIRTUAL_ENV 'Scripts' } else { $null }
|
|
$sources = @()
|
|
if ($venvScripts) { $sources += $venvScripts }
|
|
$sources += @($machinePath, $userPath, $env:Path)
|
|
$merged = ($sources | Where-Object { $_ }) -join ';'
|
|
$seen = @{}
|
|
$unique = New-Object System.Collections.Generic.List[string]
|
|
foreach ($p in $merged -split ";") {
|
|
$rawKey = $p.Trim().Trim('"').TrimEnd("\").ToLowerInvariant()
|
|
$expKey = [Environment]::ExpandEnvironmentVariables($p).Trim().Trim('"').TrimEnd("\").ToLowerInvariant()
|
|
if ($rawKey -and -not $seen.ContainsKey($rawKey) -and -not $seen.ContainsKey($expKey)) {
|
|
$seen[$rawKey] = $true
|
|
if ($expKey -and $expKey -ne $rawKey) { $seen[$expKey] = $true }
|
|
$unique.Add($p)
|
|
}
|
|
}
|
|
$env:Path = $unique -join ";"
|
|
}
|
|
|
|
# ── Helper: safely add a directory to the persistent User PATH ──
|
|
# Direct registry access preserves REG_EXPAND_SZ (avoids dotnet/runtime#1442).
|
|
# Append (default) keeps existing tools first; Prepend for must-win entries.
|
|
function Add-ToUserPath {
|
|
param(
|
|
[Parameter(Mandatory = $true)][string]$Directory,
|
|
[ValidateSet('Append','Prepend')]
|
|
[string]$Position = 'Append'
|
|
)
|
|
try {
|
|
$regKey = [Microsoft.Win32.Registry]::CurrentUser.CreateSubKey('Environment')
|
|
try {
|
|
$rawPath = $regKey.GetValue('Path', '', [Microsoft.Win32.RegistryValueOptions]::DoNotExpandEnvironmentNames)
|
|
[string[]]$entries = if ($rawPath) { $rawPath -split ';' } else { @() } # string[] prevents scalar collapse
|
|
$normalDir = $Directory.Trim().Trim('"').TrimEnd('\').ToLowerInvariant()
|
|
$expNormalDir = [Environment]::ExpandEnvironmentVariables($Directory).Trim().Trim('"').TrimEnd('\').ToLowerInvariant()
|
|
$kept = New-Object System.Collections.Generic.List[string]
|
|
$matchIndices = New-Object System.Collections.Generic.List[int]
|
|
for ($i = 0; $i -lt $entries.Count; $i++) {
|
|
$stripped = $entries[$i].Trim().Trim('"')
|
|
$rawNorm = $stripped.TrimEnd('\').ToLowerInvariant()
|
|
$expNorm = [Environment]::ExpandEnvironmentVariables($stripped).TrimEnd('\').ToLowerInvariant()
|
|
$isMatch = ($rawNorm -and ($rawNorm -eq $normalDir -or $rawNorm -eq $expNormalDir)) -or
|
|
($expNorm -and ($expNorm -eq $normalDir -or $expNorm -eq $expNormalDir))
|
|
if ($isMatch) {
|
|
$matchIndices.Add($i)
|
|
continue
|
|
}
|
|
$kept.Add($entries[$i])
|
|
}
|
|
$alreadyPresent = $matchIndices.Count -gt 0
|
|
if ($alreadyPresent -and $Position -eq 'Append') { # Append: idempotent no-op
|
|
return $false
|
|
}
|
|
if ($alreadyPresent -and $Position -eq 'Prepend' -and # Prepend: no-op if already at front
|
|
$matchIndices.Count -eq 1 -and $matchIndices[0] -eq 0) {
|
|
return $false
|
|
}
|
|
# One-time backup under HKCU\Software\Unsloth\PathBackup
|
|
if ($rawPath) {
|
|
try {
|
|
$backupKey = [Microsoft.Win32.Registry]::CurrentUser.CreateSubKey('Software\Unsloth')
|
|
try {
|
|
$existingBackup = $backupKey.GetValue('PathBackup', $null)
|
|
if (-not $existingBackup) {
|
|
$backupKey.SetValue('PathBackup', $rawPath, [Microsoft.Win32.RegistryValueKind]::ExpandString)
|
|
}
|
|
} finally {
|
|
$backupKey.Close()
|
|
}
|
|
} catch { }
|
|
}
|
|
if (-not $rawPath) {
|
|
Write-Host "[WARN] User PATH is empty - initializing with $Directory" -ForegroundColor Yellow
|
|
}
|
|
$newPath = if ($rawPath) {
|
|
if ($Position -eq 'Prepend') {
|
|
(@($Directory) + $kept) -join ';'
|
|
} else {
|
|
($kept + @($Directory)) -join ';'
|
|
}
|
|
} else {
|
|
$Directory
|
|
}
|
|
if ($newPath -ceq $rawPath) { # no actual change
|
|
return $false
|
|
}
|
|
$regKey.SetValue('Path', $newPath, [Microsoft.Win32.RegistryValueKind]::ExpandString)
|
|
# Broadcast WM_SETTINGCHANGE via dummy env-var roundtrip.
|
|
# [NullString]::Value avoids PS 7.5+/.NET 9 $null-to-"" coercion.
|
|
try {
|
|
$d = "UnslothPathRefresh_$([guid]::NewGuid().ToString('N').Substring(0,8))"
|
|
[Environment]::SetEnvironmentVariable($d, '1', 'User')
|
|
[Environment]::SetEnvironmentVariable($d, [NullString]::Value, 'User')
|
|
} catch { }
|
|
return $true
|
|
} finally {
|
|
$regKey.Close()
|
|
}
|
|
} catch {
|
|
Write-Host "[WARN] Could not update User PATH: $($_.Exception.Message)" -ForegroundColor Yellow
|
|
return $false
|
|
}
|
|
}
|
|
|
|
# PowerShell 5.1 compatibility helper: avoid relying on New-TemporaryFile.
|
|
function New-UnslothTemporaryFile {
|
|
$tempPath = [System.IO.Path]::GetTempFileName()
|
|
return Get-Item -LiteralPath $tempPath
|
|
}
|
|
|
|
function Get-InstalledLlamaPrebuiltRelease {
|
|
param([string]$InstallDir)
|
|
|
|
$metadataPath = Join-Path $InstallDir "UNSLOTH_PREBUILT_INFO.json"
|
|
if (-not (Test-Path $metadataPath)) {
|
|
return $null
|
|
}
|
|
|
|
try {
|
|
$payload = Get-Content $metadataPath -Raw | ConvertFrom-Json
|
|
} catch {
|
|
return $null
|
|
}
|
|
|
|
if (-not $payload.published_repo -or -not $payload.release_tag) {
|
|
return $null
|
|
}
|
|
|
|
$message = "installed release: $($payload.published_repo)@$($payload.release_tag)"
|
|
if ($payload.tag -and $payload.tag -ne $payload.release_tag) {
|
|
$message += " (tag $($payload.tag))"
|
|
}
|
|
return $message
|
|
}
|
|
|
|
# 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 = "")
|
|
|
|
$toolkitBase = 'C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA'
|
|
|
|
if ($MaxVersion -and (Test-Path $toolkitBase)) {
|
|
$drMajor = [int]$MaxVersion.Split('.')[0]
|
|
|
|
# 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]
|
|
$compatible = ($tkMajor -le $drMajor)
|
|
if ($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 | Where-Object {
|
|
$_.Name -match '^v(\d+)\.(\d+)'
|
|
} | Sort-Object { [version]($_.Name -replace '^v','') } -Descending | Select-Object -First 1
|
|
if ($latest -and (Test-Path (Join-Path $latest.FullName 'bin\nvcc.exe'))) {
|
|
return (Join-Path $latest.FullName 'bin\nvcc.exe')
|
|
}
|
|
}
|
|
|
|
return $null
|
|
}
|
|
|
|
function Write-CudaDriverToolkitMismatch {
|
|
param(
|
|
[Parameter(Mandatory = $true)][string]$ToolkitVersion,
|
|
[Parameter(Mandatory = $true)][string]$DriverMaxCuda,
|
|
[string]$Color = "Yellow"
|
|
)
|
|
$toolkitMajor = $ToolkitVersion.Split('.')[0]
|
|
$driverMajor = $DriverMaxCuda.Split('.')[0]
|
|
substep "CUDA Toolkit $ToolkitVersion is a major-version mismatch: toolkit major $toolkitMajor exceeds driver CUDA major $driverMajor ($DriverMaxCuda)." $Color
|
|
substep "Update the NVIDIA GPU driver to run CUDA Toolkit $ToolkitVersion, or install a CUDA $driverMajor.x toolkit." $Color
|
|
substep "Or let Studio use the prebuilt CUDA bundle; it does not need the local toolkit." $Color
|
|
}
|
|
|
|
# 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 {
|
|
# Bounded: a wedged nvidia-smi must not hang setup after the initial
|
|
# -L probe succeeded (the helper merges stderr after stdout, so the
|
|
# first line is still the compute_cap value).
|
|
$raw = Invoke-NvidiaSmiBounded $smiExe @('--query-gpu=compute_cap', '--format=csv,noheader')
|
|
if ($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 $smiExe) { return "cu126" }
|
|
|
|
try {
|
|
# Bounded: a wedged nvidia-smi must not hang setup. The helper merges
|
|
# stderr into the returned string, matching the old 2>&1 | Out-String
|
|
# shape (plain 2>$null leaks ErrorRecord objects in PS 5.1).
|
|
$output = Invoke-NvidiaSmiBounded $smiExe
|
|
# Newer NVIDIA drivers (e.g. 610.x on Windows) print
|
|
# "CUDA UMD Version: X.Y" instead of the legacy "CUDA Version: X.Y".
|
|
# Accept both spellings so we don't fall through to the cu126 default.
|
|
if ($output -match 'CUDA(?: UMD)? 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 ($major -ge 11) { return "cu118" }
|
|
return "cpu"
|
|
}
|
|
} catch { }
|
|
|
|
return "cu126"
|
|
}
|
|
|
|
# VS generator -> MSBuild BuildCustomizations dir; toolset tracks the VS major
|
|
# (18->v180, 17->v170), defaulting to v170 when unparseable.
|
|
function Get-VcBuildCustomizationsDir {
|
|
param(
|
|
[Parameter(Mandatory)][string]$VsInstallPath,
|
|
[string]$Generator
|
|
)
|
|
$toolset = 'v170'
|
|
if ($Generator -and ($Generator -match 'Visual Studio (\d+)\b')) {
|
|
$toolset = "v$($Matches[1])0"
|
|
}
|
|
return (Join-Path $VsInstallPath "MSBuild\Microsoft\VC\$toolset\BuildCustomizations")
|
|
}
|
|
|
|
# Installed cmake version, or $null if absent/unparseable.
|
|
function Get-CmakeVersion {
|
|
$raw = & cmake --version 2>$null | Select-Object -First 1
|
|
if ($raw -and ($raw -match '(\d+)\.(\d+)(?:\.(\d+))?')) {
|
|
$patch = if ($Matches[3]) { $Matches[3] } else { '0' }
|
|
return [version]"$($Matches[1]).$($Matches[2]).$patch"
|
|
}
|
|
return $null
|
|
}
|
|
|
|
# VS 18 2026 generator needs cmake >= 4.2 (added there); true for older VS generators.
|
|
function Test-CmakeSupportsGenerator {
|
|
param(
|
|
[Parameter(Mandatory)][string]$CmakeVersion,
|
|
[Parameter(Mandatory)][string]$Generator
|
|
)
|
|
if ($Generator -match 'Visual Studio 18\b') {
|
|
$clean = ($CmakeVersion -replace '[^0-9.].*$', '').TrimEnd('.')
|
|
try { $v = [version]$clean } catch { return $false }
|
|
return ($v -ge [version]'4.2')
|
|
}
|
|
return $true
|
|
}
|
|
|
|
function Test-CmakeListsGenerator {
|
|
# Does `cmake --help` actually list the generator? A VS-bundled cmake can drive
|
|
# VS 2026 below the 4.2 floor, so probe rather than trust the version. (#6473)
|
|
param([Parameter(Mandatory)][string]$Generator)
|
|
$help = & cmake --help 2>$null | Out-String
|
|
if (-not $help) { return $false }
|
|
$haystack = ($help -replace '\s+', ' ')
|
|
$needle = ($Generator -replace '\s+', ' ')
|
|
return $haystack.Contains($needle)
|
|
}
|
|
|
|
function Test-CmakeCanDriveGenerator {
|
|
# cmake can drive $Generator if it lists it (VS-bundled below 4.2) or meets the floor.
|
|
param([Parameter(Mandatory)][string]$Generator)
|
|
if (Test-CmakeListsGenerator -Generator $Generator) { return $true }
|
|
$verObj = Get-CmakeVersion
|
|
$verStr = if ($verObj) { $verObj.ToString() } else { '0.0' }
|
|
return (Test-CmakeSupportsGenerator -CmakeVersion $verStr -Generator $Generator)
|
|
}
|
|
|
|
function Add-DefaultCmakeToPath {
|
|
# Prepend the default CMake dir so a freshly winget-installed cmake wins over an
|
|
# older one already on PATH. $true if found. (#6473)
|
|
$cmakeDefaults = @(
|
|
"$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"
|
|
Add-ToUserPath -Directory $d -Position 'Prepend' | Out-Null
|
|
return $true
|
|
}
|
|
}
|
|
return $false
|
|
}
|
|
|
|
function Get-FallbackVsGenerator {
|
|
# Newest pre-2026 VS whose generator the current cmake can drive, for when the
|
|
# VS 2026 generator is unusable (old/offline cmake) but an older toolchain exists.
|
|
# vswhere first (catches non-default roots like D:\), then Program Files; matches
|
|
# Find-VsBuildTools. Returns @{ Generator; InstallPath } or $null. (#6473)
|
|
$knownEditions = @('BuildTools', 'Community', 'Professional', 'Enterprise', 'Preview')
|
|
|
|
# install path if it holds a usable cl.exe, else $null
|
|
$tryCandidate = {
|
|
param($gen, $installPath)
|
|
if (-not $installPath) { return $null }
|
|
$vcDir = Join-Path $installPath "VC\Tools\MSVC"
|
|
if (-not (Test-Path $vcDir)) { return $null }
|
|
$cl = Get-ChildItem -Path $vcDir -Filter "cl.exe" -Recurse -ErrorAction SilentlyContinue | Select-Object -First 1
|
|
if ($cl) { return @{ Generator = $gen; InstallPath = $installPath } }
|
|
return $null
|
|
}
|
|
|
|
# vswhere (non-default roots)
|
|
$vsw = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
|
|
if (Test-Path $vsw) {
|
|
$json = & $vsw -all -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -format json 2>$null | Out-String
|
|
if ($json) {
|
|
try { $instances = @($json | ConvertFrom-Json) } catch { $instances = @() }
|
|
$ranked = $instances | ForEach-Object {
|
|
$label = if ($_.catalog -and $_.catalog.productLineVersion) { [string]$_.catalog.productLineVersion } else { '' }
|
|
[pscustomobject]@{ Gen = (Resolve-VsGeneratorFromLabel $label); Path = [string]$_.installationPath }
|
|
} | Where-Object { $_.Gen -and ($_.Gen -notmatch 'Visual Studio 18\b') }
|
|
# newest first: 2022 > 2019 > 2017
|
|
$ranked = $ranked | Sort-Object { switch -regex ($_.Gen) { '17 2022' {0} '16 2019' {1} '15 2017' {2} default {9} } }
|
|
foreach ($cand in $ranked) {
|
|
if (-not (Test-CmakeListsGenerator -Generator $cand.Gen)) { continue }
|
|
$res = & $tryCandidate $cand.Gen $cand.Path
|
|
if ($res) { return $res }
|
|
}
|
|
}
|
|
}
|
|
|
|
# Program Files scan
|
|
$roots = @($env:ProgramFiles, ${env:ProgramFiles(x86)}) | Where-Object { $_ }
|
|
$older = @(
|
|
@{ Dir = '2022'; Generator = 'Visual Studio 17 2022' },
|
|
@{ Dir = '2019'; Generator = 'Visual Studio 16 2019' },
|
|
@{ Dir = '2017'; Generator = 'Visual Studio 15 2017' }
|
|
)
|
|
foreach ($entry in $older) {
|
|
if (-not (Test-CmakeListsGenerator -Generator $entry.Generator)) { continue }
|
|
foreach ($r in $roots) {
|
|
$vsBase = Join-Path $r "Microsoft Visual Studio\$($entry.Dir)"
|
|
if (-not (Test-Path $vsBase)) { continue }
|
|
foreach ($ed in $knownEditions) {
|
|
$candidate = Join-Path $vsBase $ed
|
|
if (-not (Test-Path $candidate)) { continue }
|
|
$res = & $tryCandidate $entry.Generator $candidate
|
|
if ($res) { return $res }
|
|
}
|
|
}
|
|
}
|
|
return $null
|
|
}
|
|
|
|
# VS version label -> cmake generator. vswhere's productLineVersion is the year for
|
|
# VS <= 2022 but the internal major "18" for VS 2026, and dir names use either form,
|
|
# so accept both. (VS 2026 detection adapted from @LeoBorcherding's #6038.)
|
|
function Resolve-VsGeneratorFromLabel {
|
|
param([string]$Label)
|
|
if (-not $Label) { return $null }
|
|
$map = @{
|
|
'2026' = 'Visual Studio 18 2026'; '18' = 'Visual Studio 18 2026'
|
|
'2022' = 'Visual Studio 17 2022'; '17' = 'Visual Studio 17 2022'
|
|
'2019' = 'Visual Studio 16 2019'; '16' = 'Visual Studio 16 2019'
|
|
'2017' = 'Visual Studio 15 2017'; '15' = 'Visual Studio 15 2017'
|
|
}
|
|
return $map[$Label.Trim()]
|
|
}
|
|
|
|
# Find VS Build Tools for cmake -G: vswhere, then a filesystem scan (handles broken
|
|
# vswhere registration). Returns @{ Generator; InstallPath; Source } or $null.
|
|
function Find-VsBuildTools {
|
|
# 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) {
|
|
$gen = Resolve-VsGeneratorFromLabel $info
|
|
if ($gen) {
|
|
return @{ Generator = $gen; InstallPath = $path.Trim(); Source = 'vswhere' }
|
|
}
|
|
}
|
|
}
|
|
|
|
# filesystem scan (handles broken vswhere registration); VS 2026+ dir is "18"
|
|
$roots = @($env:ProgramFiles, ${env:ProgramFiles(x86)}) | Where-Object { $_ }
|
|
$knownEditions = @('BuildTools', 'Community', 'Professional', 'Enterprise', 'Preview')
|
|
$dirs = @('18', '2026', '2022', '2019', '2017')
|
|
|
|
foreach ($d in $dirs) {
|
|
$gen = Resolve-VsGeneratorFromLabel $d
|
|
if (-not $gen) { continue }
|
|
foreach ($r in $roots) {
|
|
$vsBase = Join-Path $r "Microsoft Visual Studio\$d"
|
|
if (-not (Test-Path $vsBase)) { continue }
|
|
# VS 2026 (dir "18") may use non-standard edition names, so scan every subdir
|
|
if ($d -eq '18' -or $d -eq '2026') {
|
|
$editionCandidates = Get-ChildItem -Path $vsBase -Directory -ErrorAction SilentlyContinue | ForEach-Object { $_.FullName }
|
|
} else {
|
|
$editionCandidates = $knownEditions | ForEach-Object { Join-Path $vsBase $_ }
|
|
}
|
|
foreach ($candidate in $editionCandidates) {
|
|
if (-not (Test-Path $candidate)) { continue }
|
|
$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) {
|
|
$ed = Split-Path $candidate -Leaf
|
|
return @{ Generator = $gen; InstallPath = $candidate; Source = "filesystem ($ed)"; ClExe = $cl.FullName }
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return $null
|
|
}
|
|
|
|
# Install CMake + VS Build Tools, deferred here from Phase 1 so the prebuilt path
|
|
# never pays for a multi-GB install. Called only when a source build is committed.
|
|
# CMake is best-effort (build skips downstream if absent); VS Build Tools are
|
|
# required, so exit 1 with guidance if missing. No-ops for VS when already detected.
|
|
function Ensure-BuildToolsForLlamaSourceBuild {
|
|
# CMake
|
|
if ($null -eq (Get-Command cmake -ErrorAction SilentlyContinue)) {
|
|
Write-Host "CMake not found -- installing via winget (needed for the llama.cpp source build)..." -ForegroundColor Yellow
|
|
if ($null -ne (Get-Command winget -ErrorAction SilentlyContinue)) {
|
|
try {
|
|
Invoke-SetupCommand { winget install Kitware.CMake --source winget --accept-package-agreements --accept-source-agreements } | Out-Null
|
|
Refresh-Environment
|
|
} catch { }
|
|
}
|
|
# winget may install cmake but not put it on PATH yet; try the default dir
|
|
if ($null -eq (Get-Command cmake -ErrorAction SilentlyContinue)) {
|
|
$cmakeDefaults = @(
|
|
"$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"
|
|
Add-ToUserPath -Directory $d -Position 'Prepend' | Out-Null
|
|
break
|
|
}
|
|
}
|
|
}
|
|
if ($null -ne (Get-Command cmake -ErrorAction SilentlyContinue)) { step "cmake" "installed" }
|
|
}
|
|
|
|
# VS Build Tools
|
|
if ($script:VsInstallPath) { return } # already detected by the early probe
|
|
$vsResult = Find-VsBuildTools
|
|
if (-not $vsResult) {
|
|
Write-Host "Visual Studio Build Tools not found -- installing via winget..." -ForegroundColor Yellow
|
|
Write-Host " (Needed only for the llama.cpp source build; may take several minutes)" -ForegroundColor Gray
|
|
if ($null -ne (Get-Command winget -ErrorAction SilentlyContinue)) {
|
|
$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) {
|
|
$script:CmakeGenerator = $vsResult.Generator
|
|
$script:VsInstallPath = $vsResult.InstallPath
|
|
step "vs" "$($vsResult.Generator) ($($vsResult.Source))"
|
|
if ($vsResult.ClExe) { substep "cl.exe: $($vsResult.ClExe)" }
|
|
} else {
|
|
Write-Host "[ERROR] Visual Studio Build Tools are required for the llama.cpp source build but 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
|
|
}
|
|
}
|
|
|
|
# Detect the VC++ 2015-2022 Redistributable that the prebuilt llama-server and
|
|
# PyTorch need (they link VCRUNTIME140_1.dll etc., which the Universal CRT lacks).
|
|
# Signal is System32\vcruntime140_1.dll (VS 2019+), registry as fallback.
|
|
function Test-VCRedistInstalled {
|
|
$sys = $env:SystemRoot
|
|
if ($sys -and (Test-Path (Join-Path $sys 'System32\vcruntime140_1.dll'))) { return $true }
|
|
foreach ($k in @(
|
|
'HKLM:\SOFTWARE\Microsoft\VisualStudio\14.0\VC\Runtimes\x64',
|
|
'HKLM:\SOFTWARE\WOW6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x64'
|
|
)) {
|
|
try {
|
|
$r = Get-ItemProperty -Path $k -ErrorAction Stop
|
|
if ($r.Installed -eq 1 -and [int]$r.Major -ge 14 -and [int]$r.Minor -ge 20) { return $true }
|
|
} catch { }
|
|
}
|
|
return $false
|
|
}
|
|
|
|
# Install the VC++ 2015-2022 runtime if missing (non-fatal; usually a no-op).
|
|
function Ensure-VCRedist {
|
|
if (Test-VCRedistInstalled) { step "vcredist" "present"; return }
|
|
Write-Host "Microsoft Visual C++ Redistributable (2015-2022) is missing; the prebuilt llama.cpp and PyTorch need it. Installing the runtime..." -ForegroundColor Yellow
|
|
if ($null -ne (Get-Command winget -ErrorAction SilentlyContinue)) {
|
|
try {
|
|
Invoke-SetupCommand { winget install --id Microsoft.VCRedist.2015+.x64 --source winget --accept-package-agreements --accept-source-agreements } | Out-Null
|
|
Refresh-Environment
|
|
} catch { substep "VCRedist install failed: $($_.Exception.Message)" "Yellow" }
|
|
}
|
|
if (Test-VCRedistInstalled) { step "vcredist" "installed" }
|
|
else {
|
|
substep "Could not install the VC++ Redistributable automatically." "Yellow"
|
|
substep "If llama-server or torch reports a missing VCRUNTIME140.dll, install:" "Yellow"
|
|
substep "https://aka.ms/vs/17/release/vc_redist.x64.exe" "Yellow"
|
|
}
|
|
}
|
|
|
|
# ─────────────────────────────────────────────
|
|
# Output style (aligned with studio/setup.sh: step / substep)
|
|
# ─────────────────────────────────────────────
|
|
$Rule = [string]::new([char]0x2500, 52)
|
|
|
|
function Enable-StudioVirtualTerminal {
|
|
if ($env:NO_COLOR) { return $false }
|
|
try {
|
|
Add-Type -Namespace StudioVT -Name Native -MemberDefinition @'
|
|
[DllImport("kernel32.dll")] public static extern IntPtr GetStdHandle(int nStdHandle);
|
|
[DllImport("kernel32.dll")] public static extern bool GetConsoleMode(IntPtr h, out uint m);
|
|
[DllImport("kernel32.dll")] public static extern bool SetConsoleMode(IntPtr h, uint m);
|
|
'@ -ErrorAction Stop
|
|
$h = [StudioVT.Native]::GetStdHandle(-11)
|
|
[uint32]$mode = 0
|
|
if (-not [StudioVT.Native]::GetConsoleMode($h, [ref]$mode)) { return $false }
|
|
$mode = $mode -bor 0x0004
|
|
return [StudioVT.Native]::SetConsoleMode($h, $mode)
|
|
} catch {
|
|
return $false
|
|
}
|
|
}
|
|
$script:StudioVtOk = Enable-StudioVirtualTerminal
|
|
|
|
function Get-StudioAnsi {
|
|
param(
|
|
[Parameter(Mandatory = $true)]
|
|
[ValidateSet('Title', 'Dim', 'Ok', 'Warn', 'Err', 'Reset')]
|
|
[string]$Kind
|
|
)
|
|
$e = [char]27
|
|
switch ($Kind) {
|
|
'Title' { return "${e}[38;5;150m" }
|
|
'Dim' { return "${e}[38;5;245m" }
|
|
'Ok' { return "${e}[38;5;108m" }
|
|
'Warn' { return "${e}[38;5;136m" }
|
|
'Err' { return "${e}[91m" }
|
|
'Reset' { return "${e}[0m" }
|
|
}
|
|
}
|
|
|
|
function Write-SetupVerboseDetail {
|
|
param(
|
|
[Parameter(Mandatory = $true)][string]$Message,
|
|
[string]$Color = "Gray"
|
|
)
|
|
if (-not $script:UnslothVerbose) { return }
|
|
if ($script:StudioVtOk -and -not $env:NO_COLOR) {
|
|
$ansi = switch ($Color) {
|
|
'Green' { (Get-StudioAnsi Ok) }
|
|
'Gray' { (Get-StudioAnsi Dim) }
|
|
'DarkGray' { (Get-StudioAnsi Dim) }
|
|
'Yellow' { (Get-StudioAnsi Warn) }
|
|
'Cyan' { (Get-StudioAnsi Title) }
|
|
'Red' { (Get-StudioAnsi Err) }
|
|
default { (Get-StudioAnsi Dim) }
|
|
}
|
|
Write-Host ($ansi + $Message + (Get-StudioAnsi Reset))
|
|
} else {
|
|
$fc = switch ($Color) {
|
|
'Green' { 'DarkGreen' }
|
|
'Gray' { 'DarkGray' }
|
|
'Cyan' { 'Green' }
|
|
default { $Color }
|
|
}
|
|
Write-Host $Message -ForegroundColor $fc
|
|
}
|
|
}
|
|
|
|
function Invoke-SetupCommand {
|
|
param(
|
|
[Parameter(Mandatory = $true)][scriptblock]$Command,
|
|
[switch]$AlwaysQuiet
|
|
)
|
|
$prevEap = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
try {
|
|
# Reset to avoid stale values from prior native commands.
|
|
$global:LASTEXITCODE = 0
|
|
if ($script:UnslothVerbose -and -not $AlwaysQuiet) {
|
|
# Merge stderr into stdout so progress/warning output stays visible
|
|
# without flipping $? on successful native commands (PS 5.1 treats
|
|
# stderr records as errors that set $? = $false even on exit code 0).
|
|
& $Command 2>&1 | Out-Host
|
|
} else {
|
|
$output = & $Command 2>&1 | Out-String
|
|
if ($LASTEXITCODE -ne 0) {
|
|
Write-Host $output -ForegroundColor Red
|
|
}
|
|
}
|
|
return [int]$LASTEXITCODE
|
|
} finally {
|
|
$ErrorActionPreference = $prevEap
|
|
}
|
|
}
|
|
|
|
function Write-LlamaFailureLog {
|
|
param(
|
|
[string]$Output,
|
|
[int]$MaxLines = 120
|
|
)
|
|
if (-not $Output) { return }
|
|
$lines = @(
|
|
($Output -split "`r?`n") | Where-Object { -not [string]::IsNullOrWhiteSpace($_) }
|
|
)
|
|
if ($lines.Count -eq 0) { return }
|
|
if ($lines.Count -gt $MaxLines) {
|
|
Write-Host " Showing last $MaxLines lines:" -ForegroundColor DarkGray
|
|
$lines = $lines | Select-Object -Last $MaxLines
|
|
}
|
|
foreach ($line in $lines) {
|
|
Write-Host " | $line" -ForegroundColor DarkGray
|
|
}
|
|
}
|
|
# Mirror the plain (no ANSI) form of step/substep messages to the
|
|
# OS-level stdout handle when a parent is consuming our stdout via
|
|
# a pipe (CI `tee`, Python subprocess.PIPE, CREATE_NO_WINDOW grandchild).
|
|
# Write-Host on PS 5.1 routes through $Host.UI / the Information
|
|
# stream, neither of which propagates reliably across the
|
|
# install.ps1 -> unsloth.exe -> python -> powershell.exe ->
|
|
# setup.ps1 process chain. [Console]::Out always lands on the OS
|
|
# stdout file handle. Gated on IsOutputRedirected so the
|
|
# interactive-console path keeps the colorized Write-Host output
|
|
# only (no double-print).
|
|
function Write-StudioStdoutMirror {
|
|
param([Parameter(Mandatory = $true)][string]$Line)
|
|
try {
|
|
if ([Console]::IsOutputRedirected) {
|
|
[Console]::Out.WriteLine($Line)
|
|
[Console]::Out.Flush()
|
|
}
|
|
} catch {}
|
|
}
|
|
|
|
function step {
|
|
param(
|
|
[Parameter(Mandatory = $true)][string]$Label,
|
|
[Parameter(Mandatory = $true)][string]$Value,
|
|
[string]$Color = "Green"
|
|
)
|
|
$padded = if ($Label.Length -ge 15) { $Label.Substring(0, 15) } else { $Label.PadRight(15) }
|
|
if ($script:StudioVtOk -and -not $env:NO_COLOR) {
|
|
$dim = Get-StudioAnsi Dim
|
|
$rst = Get-StudioAnsi Reset
|
|
$val = switch ($Color) {
|
|
'Green' { Get-StudioAnsi Ok }
|
|
'Yellow' { Get-StudioAnsi Warn }
|
|
'Red' { Get-StudioAnsi Err }
|
|
'DarkGray' { Get-StudioAnsi Dim }
|
|
default { Get-StudioAnsi Ok }
|
|
}
|
|
Write-Host (" {0}{1}{2}{3}{4}{2}" -f $dim, $padded, $rst, $val, $Value)
|
|
} else {
|
|
Write-Host (" {0}" -f $padded) -NoNewline -ForegroundColor DarkGray
|
|
$fc = switch ($Color) {
|
|
'Green' { 'DarkGreen' }
|
|
'Yellow' { 'Yellow' }
|
|
'Red' { 'Red' }
|
|
'DarkGray' { 'DarkGray' }
|
|
default { 'DarkGreen' }
|
|
}
|
|
Write-Host $Value -ForegroundColor $fc
|
|
}
|
|
Write-StudioStdoutMirror (" {0}{1}" -f $padded, $Value)
|
|
}
|
|
|
|
function substep {
|
|
param(
|
|
[Parameter(Mandatory = $true)][string]$Message,
|
|
[string]$Color = "DarkGray"
|
|
)
|
|
if ($script:StudioVtOk -and -not $env:NO_COLOR) {
|
|
$msgCol = switch ($Color) {
|
|
'Yellow' { (Get-StudioAnsi Warn) }
|
|
default { (Get-StudioAnsi Dim) }
|
|
}
|
|
$pad = "".PadRight(15)
|
|
Write-Host (" {0}{1}{2}{3}" -f $msgCol, $pad, $Message, (Get-StudioAnsi Reset))
|
|
} else {
|
|
$fc = switch ($Color) {
|
|
'Yellow' { 'Yellow' }
|
|
default { 'DarkGray' }
|
|
}
|
|
Write-Host (" {0,-15}{1}" -f "", $Message) -ForegroundColor $fc
|
|
}
|
|
Write-StudioStdoutMirror (" {0,-15}{1}" -f "", $Message)
|
|
}
|
|
|
|
function Show-NpmRegistryHint {
|
|
# Print actionable guidance when a frontend/OXC npm/bun install fails and the
|
|
# registry lock is the likely cause (corporate firewall/proxy). No-op once the
|
|
# user has opted in via UNSLOTH_NPM_REGISTRY. We never switch registries
|
|
# automatically -- we only guide.
|
|
if ($env:UNSLOTH_NPM_REGISTRY) { return }
|
|
$mirror = $env:NPM_CONFIG_REGISTRY
|
|
if (-not $mirror) {
|
|
# Read npm config from a dir with no project .npmrc so the frontend's pinned
|
|
# registry= does not mask the user's ~/.npmrc / global mirror.
|
|
$pushed = $false
|
|
try {
|
|
Push-Location ([System.IO.Path]::GetTempPath()) -ErrorAction Stop
|
|
$pushed = $true
|
|
$mirror = (& npm config get registry 2>$null | Out-String).Trim()
|
|
} catch { $mirror = "" } finally { if ($pushed) { Pop-Location } }
|
|
}
|
|
if ($mirror -in @("", "undefined", "null", "https://registry.npmjs.org", "https://registry.npmjs.org/")) {
|
|
$mirror = ""
|
|
}
|
|
Write-Host ""
|
|
step "frontend" "registry.npmjs.org looks blocked (corporate firewall/proxy?)" "Yellow"
|
|
if ($mirror) {
|
|
substep "Studio pins the public npm registry; your mirror is being ignored."
|
|
substep "Detected a registry in your npm config:"
|
|
substep " $mirror"
|
|
substep "Re-run pointing Studio at it:"
|
|
substep " `$env:UNSLOTH_NPM_REGISTRY='$mirror'; .\install.ps1 --local"
|
|
} else {
|
|
substep "If you use a private mirror/proxy, point Studio at it and re-run:"
|
|
substep " `$env:UNSLOTH_NPM_REGISTRY='https://your-mirror.example/api/npm/'; .\install.ps1 --local"
|
|
}
|
|
substep "(min-release-age and save-exact stay enforced.)"
|
|
}
|
|
|
|
# ─────────────────────────────────────────────
|
|
# Banner
|
|
# ─────────────────────────────────────────────
|
|
Write-Host ""
|
|
if ($script:StudioVtOk -and -not $env:NO_COLOR) {
|
|
Write-Host (" " + (Get-StudioAnsi Title) + [char]::ConvertFromUtf32(0x1F9A5) + " Unsloth Studio Setup" + (Get-StudioAnsi Reset))
|
|
Write-Host (" {0}{1}{2}" -f (Get-StudioAnsi Dim), $Rule, (Get-StudioAnsi Reset))
|
|
} else {
|
|
Write-Host (" " + [char]::ConvertFromUtf32(0x1F9A5) + " Unsloth Studio Setup") -ForegroundColor Green
|
|
Write-Host " $Rule" -ForegroundColor DarkGray
|
|
}
|
|
|
|
# Back up User PATH under HKCU\Software\Unsloth before any modifications.
|
|
try {
|
|
$envKey = [Microsoft.Win32.Registry]::CurrentUser.OpenSubKey('Environment', $false)
|
|
if ($envKey) {
|
|
try {
|
|
$rawPath = $envKey.GetValue('Path', '', [Microsoft.Win32.RegistryValueOptions]::DoNotExpandEnvironmentNames)
|
|
} finally {
|
|
$envKey.Close()
|
|
}
|
|
if ($rawPath) {
|
|
$backupKey = [Microsoft.Win32.Registry]::CurrentUser.CreateSubKey('Software\Unsloth')
|
|
try {
|
|
$existingBackup = $backupKey.GetValue('PathBackup', $null)
|
|
if (-not $existingBackup) {
|
|
$backupKey.SetValue('PathBackup', $rawPath, [Microsoft.Win32.RegistryValueKind]::ExpandString)
|
|
}
|
|
} finally {
|
|
$backupKey.Close()
|
|
}
|
|
}
|
|
}
|
|
} catch {
|
|
Write-Host "[DEBUG] Could not back up User PATH: $($_.Exception.Message)" -ForegroundColor DarkGray
|
|
}
|
|
|
|
# ==========================================================================
|
|
# PHASE 1: System-level prerequisites (winget installs, env vars)
|
|
# All heavy system tool installs happen here BEFORE touching Python.
|
|
# ==========================================================================
|
|
|
|
# ============================================
|
|
# 1a. GPU detection
|
|
# ============================================
|
|
# ── Helper: run nvidia-smi under a timeout ──
|
|
# A wedged NVIDIA driver can make nvidia-smi block during init or after a reset;
|
|
# WaitForExit bounds it (mirrors Invoke-AmdSmiNoElevate below) so detection
|
|
# cannot hang setup. No RunAsInvoker compat layer: nvidia-smi does not
|
|
# auto-elevate. Returns combined stdout+stderr; "" on timeout/failure.
|
|
function Invoke-NvidiaSmiBounded {
|
|
param(
|
|
[Parameter(Mandatory = $true, Position = 0)][string]$Exe,
|
|
[Parameter(Position = 1)][string[]]$SmiArgs = @(),
|
|
[int]$TimeoutSec = 10
|
|
)
|
|
try {
|
|
$psi = New-Object System.Diagnostics.ProcessStartInfo
|
|
$psi.FileName = $Exe
|
|
$psi.Arguments = ($SmiArgs -join ' ')
|
|
$psi.UseShellExecute = $false
|
|
$psi.RedirectStandardOutput = $true
|
|
$psi.RedirectStandardError = $true
|
|
$psi.CreateNoWindow = $true
|
|
$proc = [System.Diagnostics.Process]::Start($psi)
|
|
$outTask = $proc.StandardOutput.ReadToEndAsync()
|
|
$errTask = $proc.StandardError.ReadToEndAsync()
|
|
if (-not $proc.WaitForExit($TimeoutSec * 1000)) {
|
|
try { $proc.Kill() } catch {}
|
|
$global:LASTEXITCODE = 124
|
|
return ""
|
|
}
|
|
$global:LASTEXITCODE = $proc.ExitCode
|
|
return ($outTask.Result + "`n" + $errTask.Result)
|
|
} catch {
|
|
$global:LASTEXITCODE = 1
|
|
return ""
|
|
}
|
|
}
|
|
|
|
# ── Helper: nvidia-smi -L lists at least one real GPU ──
|
|
# Exit code 0 alone is not enough: a stale/driverless nvidia-smi can exit 0
|
|
# while listing no GPU, which would mark an AMD host NVIDIA and suppress ROCm
|
|
# detection. Require a "GPU <n>:" data row.
|
|
function Test-NvidiaSmiHasGpu {
|
|
param([Parameter(Mandatory = $true)][string]$Exe)
|
|
$out = Invoke-NvidiaSmiBounded $Exe @('-L')
|
|
return ($LASTEXITCODE -eq 0 -and $out -match '(?m)^GPU\s+\d+:')
|
|
}
|
|
|
|
$HasNvidiaSmi = $false
|
|
$NvidiaSmiExe = $null # Absolute path -- survives Refresh-Environment
|
|
try {
|
|
$nvSmiCmd = Get-Command nvidia-smi -ErrorAction SilentlyContinue
|
|
if ($nvSmiCmd -and (Test-NvidiaSmiHasGpu $nvSmiCmd.Source)) {
|
|
$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 {
|
|
if (Test-NvidiaSmiHasGpu $p) {
|
|
$HasNvidiaSmi = $true
|
|
$NvidiaSmiExe = $p
|
|
Write-Host " Found nvidia-smi at $(Split-Path $p -Parent)" -ForegroundColor Gray
|
|
break
|
|
}
|
|
} catch {}
|
|
}
|
|
}
|
|
}
|
|
# ── Helper: run amd-smi without triggering a UAC elevation prompt ──
|
|
# amd-smi on Windows auto-elevates to read GPU/APU memory, surfacing a confusing
|
|
# DiskPart UAC prompt mid-install (Studio backend amd.py hits the same). RunAsInvoker
|
|
# forces it (and helpers it spawns) to run un-elevated; on failure the WMI name ->
|
|
# gfx fallback still resolves the arch.
|
|
function Invoke-AmdSmiNoElevate {
|
|
param(
|
|
[Parameter(Mandatory = $true, Position = 0)][string]$Exe,
|
|
[Parameter(Position = 1)][string[]]$SmiArgs = @(),
|
|
[int]$TimeoutSec = 30
|
|
)
|
|
# RunAsInvoker blocks the auto-elevation/UAC prompt; the timeout bounds a flaky
|
|
# amd-smi that can otherwise spin for minutes (30s mirrors the backend amd.py).
|
|
$prevCompat = [Environment]::GetEnvironmentVariable('__COMPAT_LAYER', 'Process')
|
|
$env:__COMPAT_LAYER = 'RunAsInvoker'
|
|
try {
|
|
# [Process]::Start, NOT Start-Process -PassThru: the latter leaves .ExitCode
|
|
# $null after WaitForExit on PS 5.1, so $LASTEXITCODE (checked by callers)
|
|
# reads non-zero and kills detection. Async reads drain the pipes (no
|
|
# deadlock); amd-smi args have no spaces so a plain join is safe.
|
|
$psi = New-Object System.Diagnostics.ProcessStartInfo
|
|
$psi.FileName = $Exe
|
|
$psi.Arguments = ($SmiArgs -join ' ')
|
|
$psi.UseShellExecute = $false
|
|
$psi.RedirectStandardOutput = $true
|
|
$psi.RedirectStandardError = $true
|
|
$psi.CreateNoWindow = $true
|
|
$proc = [System.Diagnostics.Process]::Start($psi)
|
|
$outTask = $proc.StandardOutput.ReadToEndAsync()
|
|
$errTask = $proc.StandardError.ReadToEndAsync()
|
|
if (-not $proc.WaitForExit($TimeoutSec * 1000)) {
|
|
try { $proc.Kill() } catch {}
|
|
$global:LASTEXITCODE = 124
|
|
return ""
|
|
}
|
|
$global:LASTEXITCODE = $proc.ExitCode
|
|
return ($outTask.Result + "`n" + $errTask.Result)
|
|
} catch {
|
|
$global:LASTEXITCODE = 1
|
|
return ""
|
|
} finally {
|
|
if ($null -eq $prevCompat) {
|
|
Remove-Item Env:__COMPAT_LAYER -ErrorAction SilentlyContinue
|
|
} else {
|
|
$env:__COMPAT_LAYER = $prevCompat
|
|
}
|
|
}
|
|
}
|
|
|
|
# ── AMD ROCm detection (Windows): probe hipinfo/amd-smi for actual GPU ──
|
|
$HasROCm = $false
|
|
$HipSdkInstalled = $false # HIP SDK binary found (independent of device accessibility)
|
|
$ROCmGpuLabel = $null
|
|
$script:ROCmGfxArch = $null
|
|
if (-not $HasNvidiaSmi) {
|
|
# hipinfo: PATH first, then HIP_PATH/ROCM_PATH bin fallback (mirrors NVIDIA smi path resolution).
|
|
# AMD HIP SDK sets HIP_PATH but may not add the bin dir to PATH depending on install type.
|
|
# Ignore the venv hipInfo.exe (AMD wheel, on PATH): not a HIP SDK, so amd-smi
|
|
# would still auto-elevate. Cf. _path_inside_venv().
|
|
function Test-HipinfoIsVenvInternal {
|
|
param([AllowNull()][string]$HipinfoPath)
|
|
if ([string]::IsNullOrWhiteSpace($HipinfoPath)) { return $false }
|
|
# VenvDir/VIRTUAL_ENV can be unset this early (the update flow probes before
|
|
# VenvDir is set), so also derive the venv from the setup python + default
|
|
# Studio home, else the venv hipInfo isn't caught.
|
|
$venvRoots = @()
|
|
if ($env:VIRTUAL_ENV) { $venvRoots += $env:VIRTUAL_ENV }
|
|
$vd = Get-Variable -Name VenvDir -ValueOnly -ErrorAction SilentlyContinue
|
|
if ($vd) { $venvRoots += $vd }
|
|
if ($env:UNSLOTH_SETUP_PYTHON) {
|
|
try { $venvRoots += (Split-Path -Parent (Split-Path -Parent $env:UNSLOTH_SETUP_PYTHON)) } catch {}
|
|
}
|
|
if ($env:USERPROFILE) { $venvRoots += (Join-Path $env:USERPROFILE ".unsloth\studio\unsloth_studio") }
|
|
# A custom Studio home (UNSLOTH_STUDIO_HOME / STUDIO_HOME alias) moves the
|
|
# venv off the default path; seed it too or its hipInfo escapes the filter.
|
|
$studioHomeEnv = if (-not [string]::IsNullOrWhiteSpace($env:UNSLOTH_STUDIO_HOME)) { $env:UNSLOTH_STUDIO_HOME.Trim() } elseif (-not [string]::IsNullOrWhiteSpace($env:STUDIO_HOME)) { $env:STUDIO_HOME.Trim() } else { $null }
|
|
if ($studioHomeEnv) {
|
|
# Expand a leading ~ like the canonical resolver below; else GetFullPath
|
|
# keeps the literal ~ (cwd-relative) and the hipInfo escapes the filter.
|
|
if (($studioHomeEnv -eq "~" -or $studioHomeEnv -like "~/*" -or $studioHomeEnv -like "~\*") -and -not [string]::IsNullOrWhiteSpace($env:USERPROFILE)) {
|
|
# A bare "~" leaves an empty child path; Join-Path rejects that on
|
|
# PS 5.1, so use USERPROFILE directly and only join a real remainder.
|
|
$studioHomeRest = $studioHomeEnv.Substring(1).TrimStart('/', '\')
|
|
$studioHomeEnv = if ($studioHomeRest) { Join-Path $env:USERPROFILE $studioHomeRest } else { $env:USERPROFILE }
|
|
}
|
|
$venvRoots += (Join-Path $studioHomeEnv "unsloth_studio")
|
|
}
|
|
try { $hip = [System.IO.Path]::GetFullPath($HipinfoPath).TrimEnd('\', '/') } catch { return $false }
|
|
foreach ($root in $venvRoots) {
|
|
if ([string]::IsNullOrWhiteSpace($root)) { continue }
|
|
try { $r = [System.IO.Path]::GetFullPath($root).TrimEnd('\', '/') } catch { continue }
|
|
# Skip a bare drive root (e.g. a non-venv UNSLOTH_SETUP_PYTHON like
|
|
# C:\Python311\python.exe yields C:) -- it would match every path on that drive.
|
|
if ($r -match '^[a-zA-Z]:$') { continue }
|
|
if ($hip.Equals($r, [System.StringComparison]::OrdinalIgnoreCase) -or
|
|
$hip.StartsWith($r + [System.IO.Path]::DirectorySeparatorChar, [System.StringComparison]::OrdinalIgnoreCase)) {
|
|
return $true
|
|
}
|
|
}
|
|
return $false
|
|
}
|
|
# Scan all hipinfo and keep the first non-venv one (the venv copy from the
|
|
# bnb fix could shadow a real HIP SDK's). -CommandType Application matches
|
|
# only real executables, not a user alias/function named hipinfo.
|
|
$hipinfoExe = Get-Command hipinfo -CommandType Application -All -ErrorAction SilentlyContinue |
|
|
Where-Object { -not (Test-HipinfoIsVenvInternal $_.Source) } |
|
|
Select-Object -First 1
|
|
if (-not $hipinfoExe) {
|
|
# Iterate the env roots (mirrors the Python list) and take the first non-venv
|
|
# bin\hipinfo.exe, so a venv-internal HIP_PATH can't mask a real SDK in ROCM_PATH.
|
|
$hipMissingLabel = $null; $hipMissingRoot = $null; $hipMissingCandidate = $null
|
|
foreach ($hipEnvLabel in @("HIP_PATH", "HIP_PATH_57", "ROCM_PATH")) {
|
|
$hipRoot = [Environment]::GetEnvironmentVariable($hipEnvLabel)
|
|
if ([string]::IsNullOrWhiteSpace($hipRoot)) { continue }
|
|
$hipinfoCandidate = Join-Path $hipRoot "bin\hipinfo.exe"
|
|
if (-not (Test-Path $hipinfoCandidate)) {
|
|
if (-not $hipMissingLabel) { $hipMissingLabel = $hipEnvLabel; $hipMissingRoot = $hipRoot; $hipMissingCandidate = $hipinfoCandidate }
|
|
continue
|
|
}
|
|
if (Test-HipinfoIsVenvInternal $hipinfoCandidate) { continue } # venv copy (AMD wheel): not a HIP SDK
|
|
substep "[WARN] hipinfo not on PATH -- located via ${hipEnvLabel}: $hipinfoCandidate" "Yellow"
|
|
substep " Add '$(Join-Path $hipRoot 'bin')' to your PATH to suppress this warning" "Yellow"
|
|
substep " Quick fix: [Environment]::SetEnvironmentVariable('PATH',`$env:PATH+';$(Join-Path $hipRoot 'bin')','User')" "Yellow"
|
|
$hipinfoExe = [PSCustomObject]@{ Source = $hipinfoCandidate }
|
|
break
|
|
}
|
|
if ((-not $hipinfoExe) -and $hipMissingLabel) {
|
|
substep "[WARN] ${hipMissingLabel}=$hipMissingRoot is set but hipinfo.exe not found at $hipMissingCandidate" "Yellow"
|
|
substep " HIP SDK install may be incomplete -- re-install from:" "Yellow"
|
|
substep " https://rocm.docs.amd.com/en/latest/deploy/windows/index.html" "Yellow"
|
|
}
|
|
}
|
|
if ($hipinfoExe) {
|
|
$HipSdkInstalled = $true # binary found → SDK is installed regardless of device state
|
|
try {
|
|
$hipOut = & $hipinfoExe.Source 2>&1 | Out-String
|
|
if ($hipOut -match "(?i)gcnArchName") {
|
|
# hipinfo can crash after printing gcnArchName (#6043).
|
|
# Once the arch is printed, keep the ROCm wheel path.
|
|
$HasROCm = $true
|
|
$_hipAllArches = @([regex]::Matches($hipOut, "(?im)^\s*gcnArchName\s*:\s*(\S+)") | ForEach-Object { ($_.Groups[1].Value -split ':')[0].Trim().ToLower() })
|
|
$_hipVisIdx = if ($env:HIP_VISIBLE_DEVICES -match '^\d') { [int]($env:HIP_VISIBLE_DEVICES -split ',')[0] } elseif ($env:ROCR_VISIBLE_DEVICES -match '^\d') { [int]($env:ROCR_VISIBLE_DEVICES -split ',')[0] } else { 0 }
|
|
if ($_hipAllArches.Count -gt 0) {
|
|
$script:ROCmGfxArch = if ($_hipVisIdx -lt $_hipAllArches.Count) { $_hipAllArches[$_hipVisIdx] } else { $_hipAllArches[0] }
|
|
$ROCmGpuLabel = "AMD ROCm ($script:ROCmGfxArch)"
|
|
} else {
|
|
$ROCmGpuLabel = "AMD ROCm"
|
|
}
|
|
if ($LASTEXITCODE -ne 0) {
|
|
substep "[INFO] hipinfo exited with code $LASTEXITCODE but reported gcnArchName -- treating as ROCm-capable (see #6043)" "Cyan"
|
|
}
|
|
} elseif ($LASTEXITCODE -ne 0) {
|
|
# hipinfo ran but returned a HIP runtime error without any gcnArchName
|
|
# output (e.g. "no ROCm-capable device detected"), or crashed before
|
|
# printing device info.
|
|
$firstLine = ($hipOut -split '\r?\n' | Where-Object { $_.Trim() } | Select-Object -First 1)
|
|
substep "[WARN] hipinfo returned a HIP runtime error (exit $LASTEXITCODE)" "Yellow"
|
|
substep " $firstLine" "Yellow"
|
|
substep " Ensure ROCm drivers are installed: https://rocm.docs.amd.com/en/latest/deploy/windows/index.html" "Yellow"
|
|
}
|
|
} catch {}
|
|
}
|
|
# amd-smi fallback: HIP runtime present but hipinfo unavailable (no full HIP SDK).
|
|
# 'list' confirms GPU visibility, 'static --asic' extracts the gfx arch hipinfo
|
|
# would give. Critical for Strix Halo (gfx1151) and other HIP-runtime-only iGPUs.
|
|
#
|
|
# BUT on hosts without a working HIP runtime amd-smi elevates a child at runtime,
|
|
# popping a UAC/DiskPart prompt RunAsInvoker can't suppress (its manifest is
|
|
# asInvoker; even 'amd-smi version' hangs). So only probe when a HIP SDK is present
|
|
# (hipinfo found -> un-elevated) or the user opts in; else fall through to WMI name
|
|
# inference (enough to pick ROCm wheels + the ROCm llama.cpp prebuilt).
|
|
# An explicit opt-out (UNSLOTH_ENABLE_AMD_SMI=0/false/no/off) wins over the HIP-SDK
|
|
# heuristic: a HIP SDK binary with a broken runtime can still pop the prompt, so
|
|
# $HipSdkInstalled must NOT silently re-enable it.
|
|
$amdSmiOptOut = $env:UNSLOTH_ENABLE_AMD_SMI -match '^(?i)(0|false|no|off)$'
|
|
$amdSmiAllowed = (-not $amdSmiOptOut) -and ($HipSdkInstalled -or ($env:UNSLOTH_ENABLE_AMD_SMI -match '^(?i)(1|true|yes|on)$'))
|
|
if (-not $HasROCm -and $amdSmiAllowed) {
|
|
$amdSmiExe = Get-Command "amd-smi" -ErrorAction SilentlyContinue
|
|
if ($amdSmiExe) {
|
|
try {
|
|
$smiOut = Invoke-AmdSmiNoElevate $amdSmiExe.Source @('list')
|
|
if ($LASTEXITCODE -eq 0 -and $smiOut -match "(?im)^GPU\s*[:\[]\s*\d") {
|
|
$HasROCm = $true
|
|
# Attempt 1: newer amd-smi versions embed the gfx arch in list output.
|
|
# Collect ALL gfx tokens in output order so that on mixed-arch systems
|
|
# we can honour HIP_VISIBLE_DEVICES / ROCR_VISIBLE_DEVICES and pick the
|
|
# arch for the *runtime-visible* GPU rather than always the first one.
|
|
# Do NOT deduplicate: a dual same-arch system (e.g. two gfx1151 APUs)
|
|
# must produce a 2-element array so HIP_VISIBLE_DEVICES=1 selects the
|
|
# second GPU rather than triggering a false out-of-range warning.
|
|
# Note: this mapping assumes amd-smi lists GPUs in the same order as
|
|
# HIP enumerates them (both follow PCI bus order in practice); it may
|
|
# give the wrong arch when GPU indices are non-contiguous (very rare).
|
|
$allGfxArches = @([regex]::Matches($smiOut, '(?i)\b(gfx\d+[a-z]?)\b') |
|
|
ForEach-Object { $_.Groups[1].Value.ToLower() })
|
|
if ($allGfxArches.Count -gt 0) {
|
|
# Resolve which GPU index is runtime-visible. When a single
|
|
# integer index is set, use it; fall back to index 0 otherwise
|
|
# (comma-separated lists or unset → first GPU, same as before).
|
|
$visGpu = if ($env:HIP_VISIBLE_DEVICES) { $env:HIP_VISIBLE_DEVICES }
|
|
elseif ($env:ROCR_VISIBLE_DEVICES) { $env:ROCR_VISIBLE_DEVICES }
|
|
else { $null }
|
|
$gpuIdx = 0
|
|
if ($visGpu -match '^\s*(\d+)\s*$') { $gpuIdx = [int]$Matches[1] }
|
|
if ($gpuIdx -ge $allGfxArches.Count) {
|
|
substep "[WARN] HIP/ROCR_VISIBLE_DEVICES index $gpuIdx is out of range ($($allGfxArches.Count) GPU(s) detected); defaulting to GPU 0 for arch selection" "Yellow"
|
|
$gpuIdx = 0
|
|
}
|
|
$script:ROCmGfxArch = $allGfxArches[$gpuIdx]
|
|
$ROCmGpuLabel = "AMD ROCm ($script:ROCmGfxArch)"
|
|
} else {
|
|
# Attempt 2: 'static --asic' exposes ASIC details on ROCm 6+,
|
|
# including the GFX target needed for wheel index selection.
|
|
$smiAsicOut = ""
|
|
try { $smiAsicOut = Invoke-AmdSmiNoElevate $amdSmiExe.Source @('static','--asic') } catch {}
|
|
if ($smiAsicOut -match "(?i)\b(gfx\d+[a-z]?)\b") {
|
|
$script:ROCmGfxArch = $Matches[1].ToLower()
|
|
$ROCmGpuLabel = "AMD ROCm ($script:ROCmGfxArch)"
|
|
} elseif ($smiAsicOut -match "(?im)Market.?Name\s*[:\|]\s*([^\r\n]+)") {
|
|
$ROCmGpuLabel = "AMD ROCm ($($Matches[1].Trim()))"
|
|
} else {
|
|
$ROCmGpuLabel = "AMD ROCm"
|
|
}
|
|
}
|
|
}
|
|
} catch {}
|
|
}
|
|
}
|
|
# WMI fallback: AMD GPU in device list but no HIP SDK → guide the user.
|
|
# WMI gives a marketing name (e.g. "AMD Radeon 890M") but never a gfx arch.
|
|
# $HasROCm is intentionally NOT set here — we cannot confirm ROCm runtime
|
|
# support without hipinfo or amd-smi. The name is saved to $ROCmGpuLabel
|
|
# so the name-based inference below can still attempt an arch lookup.
|
|
if (-not $HasROCm) {
|
|
try {
|
|
$wmiGpu = Get-WmiObject Win32_VideoController -ErrorAction SilentlyContinue |
|
|
Where-Object { $_.Name -match "AMD|Radeon" } |
|
|
Select-Object -First 1
|
|
if ($wmiGpu) { $ROCmGpuLabel = $wmiGpu.Name }
|
|
} catch {}
|
|
}
|
|
# ── Arch resolution: env-var override → name inference ──────────────────
|
|
# Runs after all probes, even when none confirmed a ROCm runtime ($HasROCm false):
|
|
# the Adrenalin driver alone runs the per-gfx ROCm llama.cpp prebuilt (bundles its
|
|
# own runtime), and all it needs is the gfx arch, inferable from the WMI GPU name.
|
|
# Resolving it here lets setup.ps1 forward --rocm-gfx so a GPU llama.cpp is pulled
|
|
# instead of CPU. (PyTorch ROCm wheels still require a HIP SDK -- gated on $HasROCm
|
|
# below -- so this only affects llama.cpp / inference.)
|
|
if (-not $script:ROCmGfxArch) {
|
|
# 1. Manual override: set UNSLOTH_ROCM_GFX_ARCH=gfx1151 before running.
|
|
if ($env:UNSLOTH_ROCM_GFX_ARCH) {
|
|
$script:ROCmGfxArch = $env:UNSLOTH_ROCM_GFX_ARCH.Trim().ToLower()
|
|
$ROCmGpuLabel = "AMD ROCm ($script:ROCmGfxArch)"
|
|
substep "gfx arch from UNSLOTH_ROCM_GFX_ARCH env override: $script:ROCmGfxArch" "Cyan"
|
|
}
|
|
# 2. Best-effort name → arch lookup (amd-smi / WMI). Most-specific first,
|
|
# first match wins. Covers only arches the ROCm prebuilts support
|
|
# (gfx120X/110X/1151/1150/103X); unknown names fall back cleanly to CPU.
|
|
elseif ($ROCmGpuLabel) {
|
|
$nameArchTable = @(
|
|
@{ P = "9070 XT|9080"; A = "gfx1201" } # RDNA 4 (Radeon RX 9070 XT / 9080)
|
|
@{ P = "9070|9060"; A = "gfx1200" } # RDNA 4 (Radeon RX 9070 / 9060)
|
|
@{ P = "8060S|8050S|8040S|Strix Halo|Ryzen AI Max|AI Max"; A = "gfx1151" } # RDNA 3.5 (Strix Halo: Radeon 8060S/8050S/8040S iGPU, Ryzen AI Max+)
|
|
@{ P = "890M|880M|860M|840M|Strix Point|Krackan|HX 37[05]|AI 9 HX|AI 9 36[05]|AI 7 35[05]|AI 5 34[05]|AI 7 PRO 35|AI 5 33"; A = "gfx1150" } # RDNA 3.5 (Strix/Krackan Point: Radeon 890M/880M iGPU, Ryzen AI 9 HX 370/375)
|
|
@{ P = "RX 7900|RX 7800|RX 7700(?!S)|PRO W7900|PRO W7800|PRO W7700"; A = "gfx1100" } # RDNA 3 desktop / workstation (Navi 31)
|
|
@{ P = "RX 7600|RX 7700S|RX 7650|PRO W7600|PRO W7500|PRO V710"; A = "gfx1102" } # RDNA 3 (Navi 33)
|
|
@{ P = "780M|760M|740M|Phoenix|Hawk Point|Z1 Extreme|Z2 Extreme"; A = "gfx1103" } # RDNA 3 iGPU (Phoenix / Hawk Point)
|
|
@{ P = "RX 6900|RX 6800|RX 6750|RX 6700|PRO W6800|PRO W6900"; A = "gfx1030" } # RDNA 2 (Navi 21) -- gfx103X family
|
|
@{ P = "RX 6650|RX 6600|PRO W6600|PRO W6650"; A = "gfx1032" } # RDNA 2 (Navi 23) -- gfx103X family
|
|
@{ P = "RX 6500|RX 6400|RX 6300|PRO W6400|PRO W6500"; A = "gfx1034" } # RDNA 2 (Navi 24) -- gfx103X family
|
|
)
|
|
foreach ($row in $nameArchTable) {
|
|
if ($ROCmGpuLabel -match $row.P) {
|
|
$script:ROCmGfxArch = $row.A
|
|
$ROCmGpuLabel = "AMD ROCm ($script:ROCmGfxArch)"
|
|
substep "gfx arch inferred from GPU name: $script:ROCmGfxArch" "Cyan"
|
|
substep "Tip: set UNSLOTH_ROCM_GFX_ARCH=$script:ROCmGfxArch to skip inference next time" "Cyan"
|
|
break
|
|
}
|
|
}
|
|
}
|
|
}
|
|
# Capture ROCm version early for display and wheel selection.
|
|
# Run whenever the HIP SDK binary is present, not just when the device is accessible --
|
|
# hipconfig --version works even when hipinfo reports no ROCm device (driver issue).
|
|
if ($HasROCm -or $HipSdkInstalled) {
|
|
$script:ROCmVersion = $null
|
|
$hipConfigExe = Get-Command hipconfig -ErrorAction SilentlyContinue
|
|
if (-not $hipConfigExe) {
|
|
$hipRoot = if ($env:HIP_PATH) { $env:HIP_PATH } elseif ($env:ROCM_PATH) { $env:ROCM_PATH } else { $null }
|
|
if ($hipRoot) {
|
|
$hipConfigCandidate = Join-Path $hipRoot "bin\hipconfig.exe"
|
|
if (Test-Path $hipConfigCandidate) {
|
|
$hipConfigEnvLabel = if ($env:HIP_PATH) { "HIP_PATH" } else { "ROCM_PATH" }
|
|
substep "[WARN] hipconfig not on PATH -- located via ${hipConfigEnvLabel}: $hipConfigCandidate" "Yellow"
|
|
$hipConfigExe = [PSCustomObject]@{ Source = $hipConfigCandidate }
|
|
}
|
|
}
|
|
}
|
|
if ($hipConfigExe) {
|
|
try {
|
|
$hipVerOut = & $hipConfigExe.Source --version 2>&1 | Out-String
|
|
if ($LASTEXITCODE -eq 0) {
|
|
$hipVerLine = ($hipVerOut -split '\r?\n' | Where-Object { $_.Trim() } | Select-Object -First 1).Trim()
|
|
if ($hipVerLine -match '(\d+\.\d+)') {
|
|
$script:ROCmVersion = $Matches[1]
|
|
$script:ROCmVersionFull = $hipVerLine
|
|
}
|
|
}
|
|
} catch {}
|
|
}
|
|
if (-not $script:ROCmVersion -and $amdSmiAllowed) {
|
|
$amdSmiVer = Get-Command "amd-smi" -ErrorAction SilentlyContinue
|
|
if ($amdSmiVer) {
|
|
try {
|
|
$smiVerOut = Invoke-AmdSmiNoElevate $amdSmiVer.Source @('version')
|
|
if ($LASTEXITCODE -eq 0 -and $smiVerOut -match 'ROCm version:\s*(\d+\.\d+)') { $script:ROCmVersion = $Matches[1] }
|
|
} catch {}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($HasNvidiaSmi) {
|
|
step "gpu" "NVIDIA GPU detected"
|
|
} elseif ($HasROCm) {
|
|
step "gpu" $ROCmGpuLabel
|
|
$hipSdkPath = if ($env:HIP_PATH) { $env:HIP_PATH } elseif ($env:ROCM_PATH) { $env:ROCM_PATH } else { "on system PATH" }
|
|
substep "HIP SDK: $hipSdkPath"
|
|
if ($script:ROCmVersionFull) { substep "hipconfig: $script:ROCmVersionFull" }
|
|
} elseif ($HipSdkInstalled -and $ROCmGpuLabel) {
|
|
# HIP SDK is installed but ROCm can't see the device (driver issue, not SDK issue)
|
|
$sdkVer = if ($script:ROCmVersionFull) { " (HIP $script:ROCmVersionFull)" } else { "" }
|
|
Write-Host ""
|
|
step "gpu" "AMD GPU detected -- not ROCm-accessible$sdkVer" "Yellow"
|
|
substep "Detected: $ROCmGpuLabel" "Yellow"
|
|
substep "[WARN] HIP SDK is installed but hipinfo reports no ROCm-capable device." "Yellow"
|
|
substep " This is a driver issue, not an SDK issue." "Yellow"
|
|
substep " Ensure the ROCm compute driver is installed alongside the display driver:" "Yellow"
|
|
substep " https://rocm.docs.amd.com/en/latest/deploy/windows/index.html" "Yellow"
|
|
} elseif ($script:ROCmGfxArch) {
|
|
# Known arch: PyTorch comes from AMD's bundled-runtime ROCm wheels (repo.amd.com),
|
|
# which ship their own runtime -- HIP SDK optional (only adds the system toolchain).
|
|
Write-Host ""
|
|
step "gpu" "AMD ROCm ($script:ROCmGfxArch)" "Cyan"
|
|
substep "Detected: $ROCmGpuLabel" "Cyan"
|
|
substep "GPU PyTorch uses AMD's bundled-runtime ROCm wheels -- HIP SDK not required (optional)." "Cyan"
|
|
Write-Host ""
|
|
} elseif ($ROCmGpuLabel) {
|
|
Write-Host ""
|
|
step "gpu" "AMD GPU detected -- arch unknown" "Yellow"
|
|
substep "Detected: $ROCmGpuLabel" "Yellow"
|
|
substep "Could not determine the GPU arch (gfx...). Install the HIP SDK or set" "Yellow"
|
|
substep "UNSLOTH_ROCM_GFX_ARCH to enable GPU ROCm PyTorch:" "Yellow"
|
|
substep "https://rocm.docs.amd.com/en/latest/deploy/windows/index.html" "Yellow"
|
|
Write-Host ""
|
|
} else {
|
|
Write-Host ""
|
|
step "gpu" "none (chat-only / GGUF)" "Yellow"
|
|
substep "Training and GPU inference require an NVIDIA or AMD ROCm GPU." "Yellow"
|
|
Write-Host ""
|
|
}
|
|
|
|
# ============================================
|
|
# 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) {
|
|
step "long paths" "enabled"
|
|
} 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
|
|
step "long paths" "enabled (via UAC)"
|
|
} else {
|
|
step "long paths" "failed to enable (exit code: $($proc.ExitCode))" "Yellow"
|
|
}
|
|
} catch {
|
|
step "long paths" "could not enable (UAC declined/unavailable)" "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 {
|
|
Invoke-SetupCommand { winget install Git.Git --source winget --accept-package-agreements --accept-source-agreements } | Out-Null
|
|
Refresh-Environment
|
|
$HasGit = $null -ne (Get-Command git -ErrorAction SilentlyContinue)
|
|
} catch { }
|
|
}
|
|
if (-not $HasGit) {
|
|
Write-Host "[ERROR] Git is required but could not be installed automatically." -ForegroundColor Red
|
|
Write-Host " Install Git from https://git-scm.com/download/win and re-run." -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
step "git" "$(git --version)"
|
|
} else {
|
|
step "git" "$(git --version)"
|
|
}
|
|
|
|
# ============================================
|
|
# 1b.5. Visual C++ Redistributable (runtime for the prebuilt llama.cpp + PyTorch)
|
|
# ============================================
|
|
# Runtime dep, not a build tool: the prebuilt llama-server and PyTorch load it.
|
|
Ensure-VCRedist
|
|
|
|
# ============================================
|
|
# 1c. CMake (only needed for a llama.cpp SOURCE build -- detection only)
|
|
# ============================================
|
|
# Detection only: the prebuilt path needs no compiler, so do not install or exit
|
|
# here. Ensure-BuildToolsForLlamaSourceBuild installs CMake if a source build runs.
|
|
$HasCmake = $null -ne (Get-Command cmake -ErrorAction SilentlyContinue)
|
|
if ($HasCmake) {
|
|
step "cmake" "$(cmake --version | Select-Object -First 1)"
|
|
} else {
|
|
step "cmake" "not detected (only needed if a llama.cpp source build is required)" "Yellow"
|
|
}
|
|
|
|
# ============================================
|
|
# 1d. Visual Studio Build Tools (only needed for a llama.cpp SOURCE build -- detection only)
|
|
# ============================================
|
|
# Detection only: detect VS for a possible source build, but never install or exit
|
|
# here. Install is deferred to Ensure-BuildToolsForLlamaSourceBuild.
|
|
$CmakeGenerator = $null
|
|
$VsInstallPath = $null
|
|
$vsResult = Find-VsBuildTools
|
|
|
|
if ($vsResult) {
|
|
$CmakeGenerator = $vsResult.Generator
|
|
$VsInstallPath = $vsResult.InstallPath
|
|
step "vs" "$CmakeGenerator ($($vsResult.Source)) (only used if a source build is needed)"
|
|
if ($vsResult.ClExe) { substep "cl.exe: $($vsResult.ClExe)" }
|
|
} else {
|
|
step "vs" "not detected (only needed if a llama.cpp source build is required)" "Yellow"
|
|
}
|
|
|
|
# ============================================
|
|
# 1e. CUDA Toolkit (nvcc for llama.cpp build + env vars)
|
|
# ============================================
|
|
# Defined here but invoked lazily right before a Phase 4 source build; the
|
|
# prebuilt llama.cpp path needs no local toolkit. With -RequireOrExit a source
|
|
# build is committed, so hard-fail if no driver-compatible toolkit can be found
|
|
# or installed. Without it, detection is best-effort and only sets the flag.
|
|
function Resolve-CudaToolkit {
|
|
param([switch]$RequireOrExit)
|
|
# Toolkit major must be <= the driver's max CUDA major (nvidia-smi "CUDA Version: X.Y");
|
|
# a newer-major toolkit fails at runtime ("ggml_cuda_init: failed to initialize CUDA").
|
|
|
|
$DriverMaxCuda = $null
|
|
try {
|
|
# Bounded: source-build toolkit resolution must not hang on a wedged smi.
|
|
# test_resolve_cuda_toolkit.ps1 extracts this function alone into a child
|
|
# pwsh (no Invoke-NvidiaSmiBounded in scope) and stubs nvidia-smi with a
|
|
# .ps1 script, so fall back to direct invocation when the bounded runner
|
|
# is unavailable; production setup.ps1 always has it defined.
|
|
$smiOut = if (Get-Command Invoke-NvidiaSmiBounded -ErrorAction SilentlyContinue) {
|
|
Invoke-NvidiaSmiBounded $NvidiaSmiExe
|
|
} else {
|
|
& $NvidiaSmiExe 2>&1 | Out-String
|
|
}
|
|
# Newer drivers report "CUDA UMD Version: X.Y" instead of "CUDA Version: X.Y"; accept both.
|
|
if ($smiOut -match "CUDA(?: UMD)? Version:\s+([\d]+)\.([\d]+)") {
|
|
$DriverMaxCuda = "$($Matches[1]).$($Matches[2])"
|
|
substep "driver supports up to CUDA $DriverMaxCuda"
|
|
}
|
|
} catch {}
|
|
|
|
# Detect compute capability early so we can validate toolkit support
|
|
$CudaArch = Get-CudaComputeCapability
|
|
if ($CudaArch) {
|
|
substep "GPU Compute Capability = $($CudaArch.Insert($CudaArch.Length-1, '.')) (sm_$CudaArch)"
|
|
}
|
|
|
|
# -- 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]
|
|
|
|
# --- 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 -le $drMajorCuda)
|
|
if ($isCompat) {
|
|
# Also verify the toolkit supports our GPU architecture
|
|
$archOk = $true
|
|
if ($CudaArch) {
|
|
$archOk = Test-NvccArchSupport -NvccExe $candidateNvcc -Arch $CudaArch
|
|
if (-not $archOk) {
|
|
substep "CUDA_PATH toolkit (CUDA $tkMaj.$tkMin) does not support GPU arch sm_$CudaArch" "Yellow"
|
|
substep "Looking for a newer toolkit..." "Yellow"
|
|
}
|
|
}
|
|
if ($archOk) {
|
|
$NvccPath = $candidateNvcc
|
|
substep "using existing CUDA Toolkit at CUDA_PATH (nvcc: $NvccPath)"
|
|
}
|
|
} else {
|
|
substep "CUDA_PATH ($existingCudaPath) has CUDA $tkMaj.$tkMin with major $tkMaj, which exceeds driver CUDA major $drMajorCuda ($DriverMaxCuda)" "Yellow"
|
|
}
|
|
}
|
|
}
|
|
|
|
# --- Step 2: Fall back to scanning side-by-side installs ---
|
|
if (-not $NvccPath) {
|
|
$NvccPath = Find-Nvcc -MaxVersion $DriverMaxCuda
|
|
if ($NvccPath) {
|
|
substep "found compatible CUDA Toolkit (nvcc: $NvccPath)"
|
|
if ($existingCudaPath) {
|
|
$selectedRoot = Split-Path (Split-Path $NvccPath -Parent) -Parent
|
|
if ($existingCudaPath.TrimEnd('\') -ne $selectedRoot.TrimEnd('\')) {
|
|
substep "overriding CUDA_PATH from $existingCudaPath to $selectedRoot" "Yellow"
|
|
}
|
|
}
|
|
} else {
|
|
# No side-by-side match: a major-compatible toolkit may still be on
|
|
# PATH/CUDA_PATH/a custom dir; use it, else record it as too-new.
|
|
$AnyNvcc = Find-Nvcc
|
|
if ($AnyNvcc) {
|
|
$NvccOut = & $AnyNvcc --version 2>&1 | Out-String
|
|
if ($NvccOut -match "release\s+(\d+)\.(\d+)") {
|
|
$tkMaj = [int]$Matches[1]; $tkMin = [int]$Matches[2]
|
|
if ($tkMaj -le $drMajorCuda) {
|
|
$NvccPath = $AnyNvcc
|
|
substep "found compatible CUDA Toolkit (nvcc: $NvccPath)"
|
|
} else {
|
|
$IncompatibleToolkit = "$tkMaj.$tkMin"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
$NvccPath = Find-Nvcc
|
|
}
|
|
|
|
# A newer-major toolkit blocked by the driver: explain the mismatch.
|
|
if (-not $NvccPath -and $IncompatibleToolkit) {
|
|
Write-CudaDriverToolkitMismatch -ToolkitVersion $IncompatibleToolkit -DriverMaxCuda $DriverMaxCuda
|
|
if (-not $RequireOrExit) {
|
|
$script:CudaToolkitReady = $false
|
|
return
|
|
}
|
|
# Reached only by a source build (forced, or after a prebuilt-install failure);
|
|
# with no compatible toolkit it must fail (setup.sh degrades to CPU instead).
|
|
Write-Host "" -ForegroundColor Red
|
|
Write-Host "========================================================================" -ForegroundColor Red
|
|
Write-Host "[ERROR] CUDA source build cannot use the installed toolkit with this driver." -ForegroundColor Red
|
|
Write-Host "========================================================================" -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
|
|
# -- No toolkit at all: install via winget (only when a source build needs it) --
|
|
if (-not $NvccPath -and $RequireOrExit) {
|
|
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]
|
|
$AvailableVersions = @()
|
|
try {
|
|
$rawOutput = winget show Nvidia.CUDA --versions --source winget --accept-source-agreements 2>&1 | Out-String
|
|
# Parse version lines (e.g. "12.6", "12.5", "11.8")
|
|
foreach ($line in $rawOutput -split "`n") {
|
|
$line = $line.Trim()
|
|
if ($line -match '^\d+\.\d+') {
|
|
$AvailableVersions += $line
|
|
}
|
|
}
|
|
} catch {}
|
|
|
|
# Filter to compatible major versions and pick the highest
|
|
$BestVersion = $null
|
|
foreach ($ver in $AvailableVersions) {
|
|
$parts = $ver.Split('.')
|
|
$vMajor = [int]$parts[0]
|
|
if ($vMajor -le $drMajor) {
|
|
$BestVersion = $ver
|
|
break # list is descending, first match is highest compatible
|
|
}
|
|
}
|
|
|
|
if ($BestVersion) {
|
|
substep "Installing CUDA Toolkit $BestVersion via winget..."
|
|
$prevEAPCuda = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
Invoke-SetupCommand { winget install --id=Nvidia.CUDA --version=$BestVersion -e --source winget --accept-package-agreements --accept-source-agreements } | Out-Null
|
|
$ErrorActionPreference = $prevEAPCuda
|
|
Refresh-Environment
|
|
$NvccPath = Find-Nvcc -MaxVersion $DriverMaxCuda
|
|
if ($NvccPath) {
|
|
substep "CUDA Toolkit $BestVersion installed (nvcc: $NvccPath)"
|
|
}
|
|
} else {
|
|
substep "no compatible CUDA Toolkit version found in winget (need CUDA major <= $drMajor)" "Yellow"
|
|
}
|
|
} else {
|
|
substep "Installing CUDA Toolkit (latest) via winget..."
|
|
winget install --id=Nvidia.CUDA -e --source winget --accept-package-agreements --accept-source-agreements
|
|
Refresh-Environment
|
|
$NvccPath = Find-Nvcc
|
|
if ($NvccPath) {
|
|
substep "CUDA Toolkit installed (nvcc: $NvccPath)"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (-not $NvccPath) {
|
|
if (-not $RequireOrExit) {
|
|
substep "no driver-compatible CUDA Toolkit found -- skipping; prebuilt llama.cpp needs no local toolkit" "Yellow"
|
|
$script:CudaToolkitReady = $false
|
|
return
|
|
}
|
|
Write-Host "[ERROR] CUDA Toolkit (nvcc) is required but could not be found or installed." -ForegroundColor Red
|
|
if ($DriverMaxCuda) {
|
|
Write-Host " Install a CUDA Toolkit with major version $($DriverMaxCuda.Split('.')[0]) 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', $CudaToolkitRoot, 'User')
|
|
substep "Persisted CUDA_PATH=$CudaToolkitRoot to user environment"
|
|
# 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')
|
|
substep "Set $cudaPathVerVar (cleared other CUDA_PATH_V* vars)"
|
|
}
|
|
# 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 (Prepend so the driver-compatible toolkit wins).
|
|
if (Add-ToUserPath -Directory $nvccBinDir -Position 'Prepend') {
|
|
substep "Persisted CUDA bin dir to user PATH"
|
|
}
|
|
|
|
# -- Ensure CUDA ↔ Visual Studio integration files exist --
|
|
# When CUDA is installed before VS Build Tools (or VS is reinstalled after CUDA),
|
|
# the MSBuild .targets/.props files that let VS compile .cu files are missing.
|
|
# cmake fails with "No CUDA toolset found". Fix: copy from CUDA extras dir.
|
|
if ($VsInstallPath -and $CudaToolkitRoot) {
|
|
$vsCustomizations = Get-VcBuildCustomizationsDir -VsInstallPath $VsInstallPath -Generator $CmakeGenerator
|
|
$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 $hasTargets) {
|
|
substep "CUDA VS integration missing -- copying .targets files..." "Yellow"
|
|
try {
|
|
Copy-Item "$cudaExtras\*" $vsCustomizations -Force -ErrorAction Stop
|
|
substep "CUDA VS integration files installed"
|
|
} 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) {
|
|
substep "CUDA VS integration files installed (elevated)"
|
|
} else {
|
|
throw "Copy did not produce .targets files"
|
|
}
|
|
} catch {
|
|
substep "could not copy CUDA VS integration files" "Yellow"
|
|
substep "The llama.cpp build may fail with 'No CUDA toolset found'." "Yellow"
|
|
substep "Manual fix: copy contents of" "Yellow"
|
|
substep "$cudaExtras"
|
|
substep "into:" "Yellow"
|
|
substep "$vsCustomizations"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
step "cuda" $NvccPath
|
|
substep "CUDA_PATH = $CudaToolkitRoot"
|
|
substep "CudaToolkitDir = $CudaToolkitRoot\"
|
|
|
|
# $CudaArch was detected earlier (before toolkit selection) so it could
|
|
# influence which toolkit we picked. Just log the final state here.
|
|
if (-not $CudaArch) {
|
|
substep "could not detect compute capability -- cmake will use defaults" "Yellow"
|
|
}
|
|
# Publish the resolved toolkit to script scope for the Phase 4 build.
|
|
$script:NvccPath = $NvccPath
|
|
$script:CudaToolkitRoot = $CudaToolkitRoot
|
|
$script:CudaArch = $CudaArch
|
|
$script:CudaToolkitReady = $true
|
|
}
|
|
|
|
if ($HasROCm) {
|
|
$rocmVerLabel = if ($script:ROCmVersionFull) { "ROCm $script:ROCmVersionFull" } elseif ($script:ROCmVersion) { "ROCm $script:ROCmVersion" } else { "ROCm (version unknown)" }
|
|
step "rocm" $rocmVerLabel
|
|
} elseif ($script:ROCmGfxArch) {
|
|
# GPU training/inference works via AMD's bundled-runtime ROCm PyTorch wheels;
|
|
# the HIP SDK is optional (only the system ROCm toolchain).
|
|
step "rocm" "GPU via bundled ROCm wheels ($script:ROCmGfxArch) -- HIP SDK optional" "Cyan"
|
|
} elseif ($ROCmGpuLabel) {
|
|
step "rocm" "AMD GPU detected -- arch unknown; HIP SDK not found" "Yellow"
|
|
}
|
|
|
|
# ============================================
|
|
# 1f. Node.js / npm (skip if pip-installed or Tauri -- only needed for frontend build)
|
|
# ============================================
|
|
# Frontend and OXC share this Node floor. The helper returns:
|
|
# system | bundled | skip.
|
|
function Get-NodeDecision {
|
|
param(
|
|
[string]$NodeVersion, # `node -v` output, e.g. v22.17.1 (or empty)
|
|
[string]$NpmVersion, # `npm -v` output, e.g. 10.9.2 (or empty)
|
|
[string]$SkipInstall # "1" => never auto-install
|
|
)
|
|
$node = ($NodeVersion -replace '^v', '').Trim()
|
|
$npm = "$NpmVersion".Trim()
|
|
if ($node -match '^\d+\.\d+' -and $npm -match '^\d+') {
|
|
$nodeMajor = [int]($node.Split('.')[0])
|
|
$nodeMinor = [int]($node.Split('.')[1])
|
|
$npmMajor = [int]($npm.Split('.')[0])
|
|
$nodeOk = ($nodeMajor -eq 20 -and $nodeMinor -ge 19) -or
|
|
($nodeMajor -eq 22 -and $nodeMinor -ge 12) -or
|
|
($nodeMajor -ge 23)
|
|
if ($nodeOk -and $npmMajor -ge 11) { return "system" }
|
|
}
|
|
if ($SkipInstall -eq "1") { return "skip" }
|
|
return "bundled"
|
|
}
|
|
|
|
$SkipFrontend = ($env:SKIP_STUDIO_FRONTEND -eq "1")
|
|
$NodeOverride = $null
|
|
$NodeParent = $null
|
|
$NodeDir = $null
|
|
$SysNodeVersion = ""
|
|
$SysNpmVersion = ""
|
|
$NodeSource = $null
|
|
|
|
if (-not $IsPipInstall) {
|
|
# Put Node beside the Studio root. OXC can still need npm when the
|
|
# frontend build is skipped.
|
|
if (-not [string]::IsNullOrWhiteSpace($env:UNSLOTH_STUDIO_HOME)) { $NodeOverride = $env:UNSLOTH_STUDIO_HOME.Trim() }
|
|
elseif (-not [string]::IsNullOrWhiteSpace($env:STUDIO_HOME)) { $NodeOverride = $env:STUDIO_HOME.Trim() }
|
|
if ($NodeOverride) {
|
|
if ($NodeOverride -eq "~") {
|
|
$NodeOverride = $env:USERPROFILE
|
|
} elseif ($NodeOverride -like "~/*" -or $NodeOverride -like "~\*") {
|
|
$NodeOverride = (Join-Path $env:USERPROFILE $NodeOverride.Substring(1).TrimStart('/', '\'))
|
|
}
|
|
if (-not (Test-Path -LiteralPath $NodeOverride -PathType Container)) {
|
|
Write-Host "ERROR: UNSLOTH_STUDIO_HOME/STUDIO_HOME=$NodeOverride does not exist." -ForegroundColor Red
|
|
Write-Host " Run install.ps1 to create the install root before 'unsloth studio update'." -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
$NodeParent = (Resolve-Path -LiteralPath $NodeOverride).Path
|
|
# An override pointing at the legacy default maps to the legacy sibling
|
|
# ~/.unsloth/node (what the runtime resolver and setup.sh use), not <root>/node.
|
|
$_legacyStudio = Join-Path $env:USERPROFILE ".unsloth\studio"
|
|
if (Test-Path -LiteralPath $_legacyStudio -PathType Container) {
|
|
$_legacyStudio = (Resolve-Path -LiteralPath $_legacyStudio).Path
|
|
}
|
|
if ($NodeParent -eq $_legacyStudio) {
|
|
$NodeParent = Join-Path $env:USERPROFILE ".unsloth"
|
|
$NodeOverride = $null
|
|
}
|
|
} else {
|
|
$NodeParent = Join-Path $env:USERPROFILE ".unsloth"
|
|
}
|
|
$NodeDir = Join-Path $NodeParent "node"
|
|
|
|
# Probe system node/npm without letting a missing/broken command abort setup.
|
|
# Under $ErrorActionPreference = "Stop" a bare `node -v` for an absent node
|
|
# throws a terminating error `2>$null` cannot swallow, and a present-but-broken
|
|
# shim throws too. Guard with Get-Command (node/npm independently) + try/catch;
|
|
# empty version => Get-NodeDecision returns "bundled".
|
|
$SysNodeVersion = try { if (Get-Command node -ErrorAction SilentlyContinue) { (node -v 2>$null) } else { "" } } catch { "" }
|
|
$SysNpmVersion = try { if (Get-Command npm -ErrorAction SilentlyContinue) { (npm -v 2>$null) } else { "" } } catch { "" }
|
|
$NodeSource = Get-NodeDecision -NodeVersion "$SysNodeVersion" -NpmVersion "$SysNpmVersion" -SkipInstall "$($env:UNSLOTH_SKIP_NODE_INSTALL)"
|
|
}
|
|
|
|
if ($IsPipInstall) {
|
|
step "frontend" "bundled (pip install)"
|
|
} elseif ($SkipFrontend) {
|
|
step "frontend" "bundled (Tauri)"
|
|
} else {
|
|
# Stale npm used to trigger system Node changes. Keep this process-local
|
|
# and provision only when the build or OXC needs Node.
|
|
if ($NodeSource -eq "system") {
|
|
substep "Node $SysNodeVersion and npm $SysNpmVersion already meet requirements (system)."
|
|
} elseif ($NodeSource -eq "bundled") {
|
|
substep "Node='$SysNodeVersion' npm='$SysNpmVersion' unsuitable; will use an isolated Node (system left untouched)."
|
|
} else {
|
|
substep "Node='$SysNodeVersion' npm='$SysNpmVersion' unsuitable and UNSLOTH_SKIP_NODE_INSTALL set; frontend build will be skipped." "Yellow"
|
|
}
|
|
}
|
|
|
|
# Conda CPython ships modified DLL search paths that break torch's c10.dll
|
|
# loading on Windows; a venv made from conda Python inherits its base_prefix,
|
|
# so check the executable path AND sys.base_prefix.
|
|
$CondaSkipPattern = '(?i)(conda|miniconda|anaconda|miniforge|mambaforge)'
|
|
function Test-IsConda {
|
|
param([string]$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 $false
|
|
}
|
|
|
|
# 1g. Python (>= 3.11 and < 3.14). Prefer the interpreter install.ps1 already
|
|
# resolved and built the venv with (UNSLOTH_SETUP_PYTHON), or the existing
|
|
# venv python, before re-probing a system where a 3.14 or a WindowsApps stub
|
|
# ahead on PATH would trip the gate. setup.ps1 only updates packages in that
|
|
# venv, so the handoff is safe to reuse once validated.
|
|
function Resolve-ReusedSetupPython {
|
|
if (-not [string]::IsNullOrWhiteSpace($env:UNSLOTH_SETUP_PYTHON) -and
|
|
(Test-Path -LiteralPath $env:UNSLOTH_SETUP_PYTHON)) {
|
|
return $env:UNSLOTH_SETUP_PYTHON
|
|
}
|
|
# Standalone `unsloth studio setup/update` (install.ps1 did not run): derive
|
|
# the venv python from the studio root, mirroring the resolver below.
|
|
$root = if (-not [string]::IsNullOrWhiteSpace($env:UNSLOTH_STUDIO_HOME)) { $env:UNSLOTH_STUDIO_HOME.Trim() }
|
|
elseif (-not [string]::IsNullOrWhiteSpace($env:STUDIO_HOME)) { $env:STUDIO_HOME.Trim() }
|
|
else { Join-Path $env:USERPROFILE ".unsloth\studio" }
|
|
if ($root -eq "~") {
|
|
# Join-Path with an empty child throws on Windows PowerShell 5.1.
|
|
$root = $env:USERPROFILE
|
|
} elseif ($root -like "~/*" -or $root -like "~\*") {
|
|
$root = Join-Path $env:USERPROFILE $root.Substring(1).TrimStart('/', '\')
|
|
}
|
|
$venvPy = Join-Path $root "unsloth_studio\Scripts\python.exe"
|
|
if (Test-Path -LiteralPath $venvPy) { return $venvPy }
|
|
return $null
|
|
}
|
|
$ReusedSetupPython = Resolve-ReusedSetupPython
|
|
|
|
$HasPython = $null -ne (Get-Command python -ErrorAction SilentlyContinue)
|
|
$PythonOk = $false
|
|
$DetectedPyVer = $null
|
|
|
|
function Get-CompatiblePythonVersion {
|
|
param([string]$PythonExe)
|
|
try {
|
|
$out = & $PythonExe --version 2>&1 | Out-String
|
|
if ($out -match 'Python (3\.(11|12|13)(\.\d+)?)') {
|
|
return $Matches[1]
|
|
}
|
|
} catch { }
|
|
return $null
|
|
}
|
|
|
|
function Add-PythonDirToProcessPath {
|
|
param([string]$PythonExe)
|
|
try {
|
|
if ($PythonExe -and (Test-Path -LiteralPath $PythonExe)) {
|
|
$resolvedDir = Split-Path -Parent $PythonExe
|
|
$alreadyOnPath = ($env:PATH -split ';' | Where-Object { $_.TrimEnd('\') -ieq $resolvedDir.TrimEnd('\') }).Count -gt 0
|
|
if (-not $alreadyOnPath) {
|
|
$env:PATH = "$resolvedDir;$env:PATH"
|
|
}
|
|
$script:HasPython = $true
|
|
}
|
|
} catch { }
|
|
}
|
|
|
|
# Reuse the install.ps1 / venv interpreter before any system probe.
|
|
$ValidatedSetupPython = $null
|
|
if ($ReusedSetupPython) {
|
|
$_reusedVer = Get-CompatiblePythonVersion $ReusedSetupPython
|
|
if ($_reusedVer -and -not (Test-IsConda $ReusedSetupPython)) {
|
|
$DetectedPyVer = $_reusedVer
|
|
Add-PythonDirToProcessPath $ReusedSetupPython
|
|
$PythonOk = $true
|
|
$ValidatedSetupPython = $ReusedSetupPython
|
|
}
|
|
}
|
|
|
|
# Fall back to every py.exe on PATH (all-users and per-user launchers can both
|
|
# register). -All is required: Windows PowerShell 5.1 returns only the first
|
|
# launcher without it, and the PowerShell 7 multi-match array breaks the call
|
|
# operator if used directly.
|
|
$PyLaunchers = if ($PythonOk) { @() } else { @(Get-Command py -All -CommandType Application -ErrorAction SilentlyContinue) }
|
|
|
|
foreach ($PyLauncher in $PyLaunchers) {
|
|
if ($PyLauncher.Source -match $CondaSkipPattern) { continue }
|
|
foreach ($minor in @("3.13", "3.12", "3.11")) {
|
|
try {
|
|
$out = & $PyLauncher.Source "-$minor" --version 2>&1 | Out-String
|
|
if ($out -match 'Python (3\.\d+\.\d+)') {
|
|
$DetectedPyVer = $Matches[1]
|
|
# Make `python` resolvable for the rest of setup. Without this,
|
|
# py-launcher-only installs (no python.exe on PATH) pass the gate
|
|
# and then crash on the first bare `python` call below.
|
|
try {
|
|
$resolvedExe = (& $PyLauncher.Source "-$minor" -c "import sys; print(sys.executable)" 2>$null | Select-Object -First 1)
|
|
if ($resolvedExe -and (Test-Path $resolvedExe)) {
|
|
Add-PythonDirToProcessPath $resolvedExe
|
|
}
|
|
} catch { }
|
|
$PythonOk = $true
|
|
break
|
|
}
|
|
} catch { }
|
|
}
|
|
if ($PythonOk) { break }
|
|
}
|
|
|
|
if (-not $PythonOk -and $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) {
|
|
$DetectedPyVer = "$PyMajor.$PyMinor"
|
|
$PythonOk = $true
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($PythonOk) {
|
|
substep "Python $DetectedPyVer"
|
|
} elseif (-not $HasPython) {
|
|
# No `python` on PATH (and py.exe either absent or only had unsupported
|
|
# minors). Try winget as before -- gating on $HasPython alone, not also
|
|
# on $PyLauncher, so a launcher-only install with just 3.14 still gets
|
|
# an automatic 3.12 install instead of a hard error.
|
|
Write-Host "Python 3.11-3.13 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 $HasPython) {
|
|
Write-Host "[ERROR] Python could not be installed automatically." -ForegroundColor Red
|
|
Write-Host " Install Python 3.12 from https://python.org/downloads/" -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
step "python" "$(python --version 2>&1)"
|
|
$PythonOk = $true
|
|
} else {
|
|
# python.exe is on PATH but its version is unsupported, and py.exe (if
|
|
# present) had no supported minor either.
|
|
Write-Host "[ERROR] No supported Python (3.11-3.13) found on this system." -ForegroundColor Red
|
|
Write-Host " py.exe could not locate -3.11/-3.12/-3.13 and `python` on PATH is unsupported." -ForegroundColor Yellow
|
|
Write-Host " Install Python 3.12 from https://python.org/downloads/" -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
|
|
# Add user-scheme Python Scripts dir to PATH (nt_user only, no venv fallback).
|
|
$ScriptsDir = python -c "import os, sysconfig; p = sysconfig.get_path('scripts', 'nt_user'); print(p if os.path.exists(p) else '')"
|
|
if ($LASTEXITCODE -eq 0 -and $ScriptsDir -and (Test-Path $ScriptsDir)) {
|
|
# Append (not Prepend) -- this dir has other pip scripts; shim handles unsloth.
|
|
if (Add-ToUserPath -Directory $ScriptsDir) {
|
|
# 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"
|
|
}
|
|
substep "Persisted Python Scripts dir to user PATH: $ScriptsDir"
|
|
}
|
|
}
|
|
|
|
Write-Host ""
|
|
step "system" "prerequisites ready"
|
|
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 = $false
|
|
step "frontend" "bundled (pip install)"
|
|
} elseif ($SkipFrontend) {
|
|
$NeedFrontendBuild = $false
|
|
step "frontend" "bundled (Tauri)"
|
|
} 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
|
|
step "frontend" "up to date"
|
|
} else {
|
|
substep "Frontend source changed since last build -- rebuilding..." "Yellow"
|
|
}
|
|
}
|
|
|
|
# Provision Node when the frontend build OR the OXC runtime install needs it (the
|
|
# OXC `npm install` runs whenever its dir exists, regardless of dist staleness);
|
|
# never eagerly. System Node is used read-only; the isolated one is ours.
|
|
$NeedNodeForSetup = (-not $IsPipInstall) -and ($NeedFrontendBuild -or (Test-Path $OxcValidatorDir))
|
|
if ($NeedNodeForSetup) {
|
|
if ($NodeSource -eq "skip") {
|
|
if ($NeedFrontendBuild) {
|
|
step "frontend" "skipped (no suitable Node; system left untouched)" "Yellow"
|
|
}
|
|
$NeedFrontendBuild = $false
|
|
substep "found Node='$SysNodeVersion' npm='$SysNpmVersion'; Studio needs Node >=20.19/22.12/23 and npm >= 11" "Yellow"
|
|
substep "install a suitable Node + npm, or unset UNSLOTH_SKIP_NODE_INSTALL to let Unsloth manage an isolated Node" "Yellow"
|
|
} elseif ($NodeSource -eq "bundled") {
|
|
New-Item -ItemType Directory -Force -Path $NodeParent -ErrorAction SilentlyContinue | Out-Null
|
|
# Minimal ownership guard for a custom-home dir (the full Studio-owned
|
|
# helpers are defined later); never os.replace over a user-owned dir.
|
|
if ($NodeOverride -and (Test-Path -LiteralPath $NodeDir -PathType Container)) {
|
|
$nodeOwnedMarker = Join-Path $NodeDir ".unsloth-studio-owned"
|
|
$nodeMeta = Join-Path $NodeDir "UNSLOTH_NODE_PREBUILT_INFO.json"
|
|
if (-not (Test-Path -LiteralPath $nodeOwnedMarker) -and -not (Test-Path -LiteralPath $nodeMeta)) {
|
|
Write-Host "[ERROR] $NodeDir already exists and is not a Studio-owned Node install." -ForegroundColor Red
|
|
Write-Host " Move it aside or choose an empty UNSLOTH_STUDIO_HOME before re-running." -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
}
|
|
substep "installing isolated Node (system Node/npm left untouched)..."
|
|
# The main Python resolver runs later; bare `python` may be a Store stub or
|
|
# absent this early, so prefer the validated handed-off/venv Python.
|
|
$NodeInstallPython = if ($ValidatedSetupPython) { $ValidatedSetupPython } else { "python" }
|
|
$nodeOut = & $NodeInstallPython "$PSScriptRoot\install_node_prebuilt.py" --install-dir $NodeDir 2>&1 | Out-String
|
|
$nodeExit = $LASTEXITCODE
|
|
if ($nodeExit -eq 3) {
|
|
Write-Host $nodeOut -ForegroundColor DarkGray
|
|
step "node" "install blocked by another active Studio install" "Red"
|
|
exit 3
|
|
} elseif ($nodeExit -ne 0) {
|
|
Write-Host $nodeOut -ForegroundColor DarkGray
|
|
Write-Host "[ERROR] Could not install an isolated Node automatically." -ForegroundColor Red
|
|
Write-Host " Install Node >= 20.19 (with npm >= 11) from https://nodejs.org/ and re-run, or check your network." -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
if ($NodeOverride -and (Test-Path -LiteralPath $NodeDir -PathType Container)) {
|
|
New-Item -ItemType File -Force -Path (Join-Path $NodeDir ".unsloth-studio-owned") -ErrorAction SilentlyContinue | Out-Null
|
|
}
|
|
# Windows Node zip ships node.exe + npm.cmd at the root; prepend it (this
|
|
# process only) so node/npm/bun resolve here for the build.
|
|
$env:PATH = "$NodeDir;" + $env:PATH
|
|
# Keep npm and module resolution inside the isolated Node.
|
|
$env:NPM_CONFIG_PREFIX = $NodeDir
|
|
$env:npm_config_prefix = $NodeDir
|
|
Remove-Item Env:NODE_PATH -ErrorAction SilentlyContinue
|
|
step "node" "$(node -v) | npm $(npm -v) (isolated)"
|
|
|
|
# bun (optional, faster installs); npm -g stays in the isolated prefix.
|
|
if (-not (Get-Command bun -ErrorAction SilentlyContinue)) {
|
|
substep "installing bun (faster frontend package installs)..."
|
|
$prevEAP_bun = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
Invoke-SetupCommand { npm install -g bun --allow-scripts=bun @NpmRegistryArgs } | Out-Null
|
|
$ErrorActionPreference = $prevEAP_bun
|
|
Refresh-Environment
|
|
# Refresh-Environment rebuilds PATH (Machine;User;current), demoting the
|
|
# isolated-Node prepend; re-prepend so it wins for the build and OXC step.
|
|
$env:PATH = "$NodeDir;" + $env:PATH
|
|
$env:NPM_CONFIG_PREFIX = $NodeDir
|
|
$env:npm_config_prefix = $NodeDir
|
|
Remove-Item Env:NODE_PATH -ErrorAction SilentlyContinue
|
|
if (Get-Command bun -ErrorAction SilentlyContinue) {
|
|
substep "bun installed ($(bun --version))"
|
|
} else {
|
|
substep "bun install skipped (npm will be used instead)"
|
|
}
|
|
}
|
|
} else {
|
|
# system Node already satisfies requirements; use it as-is. We do NOT
|
|
# install global packages (bun) here -- the build falls back to npm.
|
|
step "node" "$SysNodeVersion | npm $SysNpmVersion (system)"
|
|
}
|
|
}
|
|
if ($NeedFrontendBuild -and -not $IsPipInstall) {
|
|
Write-Host ""
|
|
substep "building frontend..."
|
|
|
|
# ── 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
|
|
substep "Temporarily hiding $gi (venv .gitignore blocks Tailwind scanner)"
|
|
}
|
|
}
|
|
$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 = $null -ne (Get-Command bun -ErrorAction SilentlyContinue)
|
|
|
|
# bun's package cache can become corrupt -- packages get stored with only
|
|
# metadata but no actual content (bin/, lib/). When this happens bun install
|
|
# exits 0 but leaves binaries missing. We validate after install and clear
|
|
# the cache + retry once before falling back to npm.
|
|
if ($UseBun) {
|
|
Write-Host " Using bun for package install (faster)" -ForegroundColor DarkGray
|
|
$bunExit = Invoke-SetupCommand { bun install @NpmRegistryArgs }
|
|
# On Windows, .bin/ entries vary by package manager:
|
|
# npm → tsc, tsc.cmd, tsc.ps1
|
|
# bun → tsc.exe, tsc.bunx
|
|
$hasTsc = (Test-Path "node_modules\.bin\tsc") -or (Test-Path "node_modules\.bin\tsc.cmd") -or (Test-Path "node_modules\.bin\tsc.exe") -or (Test-Path "node_modules\.bin\tsc.bunx")
|
|
$hasVite = (Test-Path "node_modules\.bin\vite") -or (Test-Path "node_modules\.bin\vite.cmd") -or (Test-Path "node_modules\.bin\vite.exe") -or (Test-Path "node_modules\.bin\vite.bunx")
|
|
if ($bunExit -eq 0 -and $hasTsc -and $hasVite) {
|
|
# bun install succeeded and critical binaries are present
|
|
} elseif ($bunExit -eq 0) {
|
|
Write-Host " bun install exited 0 but critical binaries are missing, clearing cache and retrying..." -ForegroundColor Yellow
|
|
if (Test-Path "node_modules") {
|
|
Remove-Item "node_modules" -Recurse -Force -ErrorAction SilentlyContinue
|
|
}
|
|
Invoke-SetupCommand { bun pm cache rm } | Out-Null
|
|
$bunExit = Invoke-SetupCommand { bun install @NpmRegistryArgs }
|
|
$hasTsc = (Test-Path "node_modules\.bin\tsc") -or (Test-Path "node_modules\.bin\tsc.cmd") -or (Test-Path "node_modules\.bin\tsc.exe") -or (Test-Path "node_modules\.bin\tsc.bunx")
|
|
$hasVite = (Test-Path "node_modules\.bin\vite") -or (Test-Path "node_modules\.bin\vite.cmd") -or (Test-Path "node_modules\.bin\vite.exe") -or (Test-Path "node_modules\.bin\vite.bunx")
|
|
if ($bunExit -ne 0 -or -not $hasTsc -or -not $hasVite) {
|
|
Write-Host " bun retry failed, falling back to npm" -ForegroundColor Yellow
|
|
if (Test-Path "node_modules") {
|
|
Remove-Item "node_modules" -Recurse -Force -ErrorAction SilentlyContinue
|
|
}
|
|
$UseBun = $false
|
|
}
|
|
} else {
|
|
substep "bun install failed (exit $bunExit), falling back to npm" "Yellow"
|
|
if (Test-Path "node_modules") {
|
|
Remove-Item "node_modules" -Recurse -Force -ErrorAction SilentlyContinue
|
|
}
|
|
$UseBun = $false
|
|
}
|
|
}
|
|
if (-not $UseBun) {
|
|
$npmExit = Invoke-SetupCommand { npm install @NpmRegistryArgs }
|
|
if ($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
|
|
Show-NpmRegistryHint
|
|
exit 1
|
|
}
|
|
}
|
|
|
|
# Always use npm to run the build (Node runtime — avoids bun Windows runtime issues)
|
|
$buildExit = Invoke-SetupCommand { npm run build }
|
|
if ($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) {
|
|
step "frontend" "built (warning: CSS may be truncated)" "Yellow"
|
|
} else {
|
|
step "frontend" "built"
|
|
}
|
|
}
|
|
|
|
if ((Test-Path $OxcValidatorDir) -and $NodeSource -ne "skip" -and (Get-Command npm -ErrorAction SilentlyContinue)) {
|
|
substep "installing OXC validator runtime..."
|
|
$prevEAP_oxc = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
Push-Location $OxcValidatorDir
|
|
$oxcInstallExit = Invoke-SetupCommand { npm install @NpmRegistryArgs }
|
|
if ($oxcInstallExit -ne 0) {
|
|
Pop-Location
|
|
$ErrorActionPreference = $prevEAP_oxc
|
|
Write-Host "[ERROR] OXC validator npm install failed (exit code $oxcInstallExit)" -ForegroundColor Red
|
|
Show-NpmRegistryHint
|
|
exit 1
|
|
}
|
|
Pop-Location
|
|
$ErrorActionPreference = $prevEAP_oxc
|
|
step "oxc runtime" "installed"
|
|
} elseif ((Test-Path $OxcValidatorDir) -and $NodeSource -ne "skip") {
|
|
# No npm on PATH (e.g. a pip install with no system Node and no isolated Node
|
|
# provisioned). Skip rather than abort; the runtime resolver degrades. Mirrors setup.sh.
|
|
substep "OXC validator runtime skipped (no npm found); code validation degrades until Node is available" "Yellow"
|
|
}
|
|
|
|
# ==========================================================================
|
|
# PHASE 3: Python environment + dependencies
|
|
# ==========================================================================
|
|
Write-Host ""
|
|
substep "setting up Python environment..."
|
|
|
|
# Find Python -- skip Anaconda/Miniconda distributions ($CondaSkipPattern and
|
|
# Test-IsConda are defined above the 1g gate). Standalone CPython (python.org,
|
|
# winget, uv) does not have conda's torch c10.dll loading issue.
|
|
$PythonCmd = $null
|
|
|
|
# 0. Reuse the interpreter install.ps1 already resolved and built the venv with
|
|
# (UNSLOTH_SETUP_PYTHON, or the existing venv python) before probing the
|
|
# system -- it is already validated as supported and non-conda.
|
|
if ($ReusedSetupPython) {
|
|
try {
|
|
$out = & $ReusedSetupPython --version 2>&1 | Out-String
|
|
if ($out -match 'Python 3\.(\d+)') {
|
|
$pyMinor = [int]$Matches[1]
|
|
if ($pyMinor -ge 11 -and $pyMinor -le 13 -and -not (Test-IsConda $ReusedSetupPython)) {
|
|
$PythonCmd = $ReusedSetupPython
|
|
}
|
|
}
|
|
} catch { }
|
|
}
|
|
|
|
# 1. Try the Python Launcher (py.exe) first -- most reliable on Windows.
|
|
# Enumerate every launcher with -All (Windows PowerShell 5.1 returns only
|
|
# the first match without it) and search each for a supported, non-conda
|
|
# interpreter.
|
|
$PyLaunchersResolve = if ($PythonCmd) { @() } else { @(Get-Command py -All -CommandType Application -ErrorAction SilentlyContinue) }
|
|
foreach ($pyLauncher in $PyLaunchersResolve) {
|
|
if ($pyLauncher.Source -match $CondaSkipPattern) { continue }
|
|
foreach ($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 = $resolvedExe
|
|
break
|
|
}
|
|
}
|
|
}
|
|
} catch { }
|
|
}
|
|
if ($PythonCmd) { break }
|
|
}
|
|
|
|
# 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) {
|
|
substep "skipping $($cmdInfo.Source) (conda Python breaks torch DLL loading)" "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
|
|
}
|
|
|
|
substep "Python found: $PythonCmd"
|
|
|
|
# The venv must already exist (created by install.ps1); this script only
|
|
# updates packages. UNSLOTH_STUDIO_HOME (or STUDIO_HOME alias) overrides the
|
|
# root. UNSLOTH_STUDIO_HOME wins when both are set. Whitespace-only values
|
|
# are treated as unset to match Python .strip() semantics.
|
|
$_studioOverrideVar = $null
|
|
$_studioOverride = $null
|
|
if (-not [string]::IsNullOrWhiteSpace($env:UNSLOTH_STUDIO_HOME)) {
|
|
$_studioOverrideVar = "UNSLOTH_STUDIO_HOME"
|
|
$_studioOverride = $env:UNSLOTH_STUDIO_HOME.Trim()
|
|
} elseif (-not [string]::IsNullOrWhiteSpace($env:STUDIO_HOME)) {
|
|
$_studioOverrideVar = "STUDIO_HOME"
|
|
$_studioOverride = $env:STUDIO_HOME.Trim()
|
|
}
|
|
if ($_studioOverride) {
|
|
if ($_studioOverride -eq "~" -or $_studioOverride -like "~/*" -or $_studioOverride -like "~\*") {
|
|
$_studioOverride = (Join-Path $env:USERPROFILE $_studioOverride.Substring(1).TrimStart('/','\'))
|
|
}
|
|
if (Test-Path -LiteralPath $_studioOverride -PathType Container) {
|
|
$StudioHome = (Resolve-Path -LiteralPath $_studioOverride).Path
|
|
# why: mirror setup.sh:417 and install.ps1:130 -- fail fast when the
|
|
# custom root is read-only instead of erroring later while creating
|
|
# sidecar venvs / installing packages.
|
|
$_setupWriteProbe = Join-Path $StudioHome (".unsloth-write-probe-" + [guid]::NewGuid())
|
|
try {
|
|
[System.IO.File]::WriteAllText($_setupWriteProbe, "")
|
|
Remove-Item -LiteralPath $_setupWriteProbe -Force -ErrorAction SilentlyContinue
|
|
} catch {
|
|
Write-Host "ERROR: $_studioOverrideVar=$StudioHome is not writable." -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
} else {
|
|
Write-Host "ERROR: $_studioOverrideVar=$_studioOverride does not exist." -ForegroundColor Red
|
|
Write-Host " Run install.ps1 to create the install root before 'unsloth studio update'." -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
} else {
|
|
$StudioHome = Join-Path $env:USERPROFILE ".unsloth\studio"
|
|
}
|
|
$VenvDir = Join-Path $StudioHome "unsloth_studio"
|
|
|
|
# why: in env-override mode $StudioHome is user-chosen; require the
|
|
# ownership marker before Remove-Item so unrelated dirs survive. Gated on
|
|
# the canonical comparison so an override pointing at the legacy default
|
|
# still behaves like a default install.
|
|
$StudioOwnedMarker = ".unsloth-studio-owned"
|
|
$LegacyStudioHome = Join-Path $env:USERPROFILE ".unsloth\studio"
|
|
$_studioHomeCanon = $StudioHome
|
|
if (Test-Path -LiteralPath $_studioHomeCanon -PathType Container) {
|
|
$_studioHomeCanon = (Resolve-Path -LiteralPath $_studioHomeCanon).Path
|
|
}
|
|
if (Test-Path -LiteralPath $LegacyStudioHome -PathType Container) {
|
|
$LegacyStudioHome = (Resolve-Path -LiteralPath $LegacyStudioHome).Path
|
|
}
|
|
$StudioHomeIsCustom = ($_studioHomeCanon -ne $LegacyStudioHome)
|
|
# Directory-local evidence that Studio created $Path, used to adopt a custom-home
|
|
# llama.cpp predating the .unsloth-studio-owned marker (see setup.sh). Only the
|
|
# prebuilt UNSLOTH_PREBUILT_INFO.json counts; source builds are indistinguishable
|
|
# from a user clone on Windows and stay under the strict guard.
|
|
function Test-StudioOwnedAdoptable {
|
|
param([Parameter(Mandatory = $true)][string]$Path)
|
|
if (Test-Path -LiteralPath (Join-Path $Path "UNSLOTH_PREBUILT_INFO.json") -PathType Leaf) { return $true }
|
|
return $false
|
|
}
|
|
function Assert-StudioOwnedOrAbsent {
|
|
param(
|
|
[Parameter(Mandatory = $true)][string]$Path,
|
|
[Parameter(Mandatory = $true)][string]$Label
|
|
)
|
|
if (-not (Test-Path -LiteralPath $Path -PathType Container)) { return }
|
|
if ($StudioHomeIsCustom -and -not (Test-Path -LiteralPath (Join-Path $Path $StudioOwnedMarker) -PathType Leaf)) {
|
|
if (Test-StudioOwnedAdoptable $Path) {
|
|
Mark-StudioOwned $Path
|
|
return
|
|
}
|
|
Write-Host "[ERROR] $Path already exists and is not marked as a Studio-owned $Label." -ForegroundColor Red
|
|
Write-Host " Move it aside or choose an empty UNSLOTH_STUDIO_HOME before re-running." -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
}
|
|
function Mark-StudioOwned {
|
|
param([Parameter(Mandatory = $true)][string]$Path)
|
|
if (-not (Test-Path -LiteralPath $Path -PathType Container)) { return }
|
|
try {
|
|
[System.IO.File]::WriteAllText((Join-Path $Path $StudioOwnedMarker), "")
|
|
} catch {}
|
|
}
|
|
|
|
# Stale-venv detection: if the venv exists but its torch flavor no longer
|
|
# matches the current machine, repair according to invocation context.
|
|
# - install.ps1 sets UNSLOTH_INSTALL_ROLLBACK_MANAGED=1 so setup can delegate
|
|
# to the installer-level rollback that restores the previous environment.
|
|
# - direct `unsloth studio update` keeps the pre-existing self-repair behavior.
|
|
# In no-torch mode, a missing torch package is expected.
|
|
$NoTorchMode = $env:UNSLOTH_NO_TORCH -match '^(?i:true|1|yes)$'
|
|
$InstallerManagedSetup = $env:UNSLOTH_INSTALL_ROLLBACK_MANAGED -match '^(?i:true|1|yes)$'
|
|
if ((Test-Path -LiteralPath $VenvDir -PathType Container) -and -not $NoTorchMode) {
|
|
$VenvPyExe = Join-Path $VenvDir "Scripts\python.exe"
|
|
$installedTorchTag = $null
|
|
$shouldRebuild = $false
|
|
|
|
if (Test-Path -LiteralPath $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 $expectedTorchTag" } else { "torch could not be imported" }
|
|
if ($InstallerManagedSetup) {
|
|
substep "Stale venv detected ($reason)." "Yellow"
|
|
Write-Host " [ERROR] The existing Studio environment needs repair." -ForegroundColor Red
|
|
Write-Host " Re-run install.ps1 so it can replace the environment safely with rollback." -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
substep "Stale venv detected ($reason) -- rebuilding..." "Yellow"
|
|
# why: mirror install.ps1 env-mode guard so an update against a custom
|
|
# UNSLOTH_STUDIO_HOME never wipes an unrelated unsloth_studio venv;
|
|
# -PathType Leaf rejects a directory masquerading as the sentinel.
|
|
if (
|
|
$StudioHomeIsCustom -and
|
|
-not (Test-Path -LiteralPath (Join-Path $VenvDir $StudioOwnedMarker) -PathType Leaf) -and
|
|
-not (Test-Path -LiteralPath (Join-Path $StudioHome "share\studio.conf") -PathType Leaf) -and
|
|
-not (Test-Path -LiteralPath (Join-Path $StudioHome "bin\unsloth.exe") -PathType Leaf)
|
|
) {
|
|
Write-Host "[ERROR] $VenvDir already exists but does not look like an Unsloth Studio install." -ForegroundColor Red
|
|
Write-Host " Move it aside or choose an empty UNSLOTH_STUDIO_HOME before re-running." -ForegroundColor Yellow
|
|
exit 1
|
|
}
|
|
try {
|
|
Remove-Item -LiteralPath $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 -LiteralPath $VenvDir)) {
|
|
Write-Host "[ERROR] Virtual environment not found at $VenvDir" -ForegroundColor Red
|
|
Write-Host " Run install.ps1 first to create the environment:" -ForegroundColor Yellow
|
|
Write-Host " irm https://unsloth.ai/install.ps1 | iex" -ForegroundColor Yellow
|
|
exit 1
|
|
} else {
|
|
substep "reusing existing virtual environment at $VenvDir"
|
|
$_venvPyExe = Join-Path $VenvDir "Scripts\python.exe"
|
|
if (Test-Path -LiteralPath $_venvPyExe) {
|
|
try {
|
|
$_venvPyVer = (& $_venvPyExe --version 2>&1 | Out-String).Trim()
|
|
if ($_venvPyVer) { substep $_venvPyVer }
|
|
} catch {}
|
|
}
|
|
}
|
|
|
|
# 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 {
|
|
substep "installing uv package manager..."
|
|
try {
|
|
Invoke-SetupCommand { Invoke-Expression (Invoke-RestMethod -Uri "https://astral.sh/uv/install.ps1") } | 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
|
|
}
|
|
|
|
# ── Check if Python deps need updating ──
|
|
# Compare installed package version against PyPI latest.
|
|
# Skip all Python dependency work if versions match (fast update path).
|
|
$_PkgName = if ($env:STUDIO_PACKAGE_NAME) { $env:STUDIO_PACKAGE_NAME } else { "unsloth" }
|
|
$SkipPythonDeps = $false
|
|
|
|
if ($env:SKIP_STUDIO_BASE -ne "1" -and $env:STUDIO_LOCAL_INSTALL -ne "1") {
|
|
# Only check when NOT called from install.ps1 (which just installed the package)
|
|
$InstalledVer = try { (& python -c "from importlib.metadata import version; print(version('$_PkgName'))" 2>$null | Out-String).Trim() } catch { "" }
|
|
$LatestVer = ""
|
|
try {
|
|
$pypiJson = Invoke-RestMethod -Uri "https://pypi.org/pypi/$_PkgName/json" -TimeoutSec 5 -ErrorAction Stop
|
|
$LatestVer = "$($pypiJson.info.version)".Trim()
|
|
} catch { }
|
|
|
|
if ($InstalledVer -and $LatestVer -and ($InstalledVer -eq $LatestVer)) {
|
|
step "python" "$_PkgName $InstalledVer is up to date"
|
|
$SkipPythonDeps = $true
|
|
# A pre-#6483-fix install can be stuck on anyio>=4.14 even though
|
|
# $_PkgName itself is current; the fast path above would otherwise
|
|
# never reach install_python_stack's anyio repair (#6797).
|
|
$_anyioBad = $false
|
|
try {
|
|
& python -c "
|
|
import re, sys
|
|
from importlib.metadata import version, PackageNotFoundError
|
|
try:
|
|
parts = version('anyio').split('.')
|
|
major = int(parts[0])
|
|
minor = int(re.sub(r'[^0-9].*', '', parts[1])) if len(parts) > 1 else 0
|
|
except (PackageNotFoundError, ValueError, IndexError):
|
|
sys.exit(1)
|
|
sys.exit(0 if (major, minor) >= (4, 14) else 1)
|
|
" 2>$null
|
|
if ($LASTEXITCODE -eq 0) { $_anyioBad = $true }
|
|
} catch {}
|
|
if ($_anyioBad) {
|
|
substep "anyio >=4.14 found (#6483) -- forcing dependency pass to repair..." "Cyan"
|
|
$SkipPythonDeps = $false
|
|
}
|
|
# ...but not if an AMD GPU is present and installed PyTorch is CPU-only
|
|
# (host predates ROCm-wheel support, or GPU added later): the fast "up to
|
|
# date" path would leave the user on CPU torch with Train/Export disabled.
|
|
# Force the dependency pass so the ROCm wheels get installed.
|
|
if ($script:ROCmGfxArch) {
|
|
$_torchIsCpu = $true
|
|
try {
|
|
& python -c "import torch, sys; sys.exit(0 if torch.cuda.is_available() else 1)" 2>$null
|
|
if ($LASTEXITCODE -eq 0) { $_torchIsCpu = $false }
|
|
} catch {}
|
|
if ($_torchIsCpu) {
|
|
substep "AMD GPU ($script:ROCmGfxArch) detected but installed PyTorch is CPU-only -- reinstalling ROCm PyTorch" "Cyan"
|
|
$SkipPythonDeps = $false
|
|
}
|
|
}
|
|
} elseif ($InstalledVer -and $LatestVer) {
|
|
substep "$_PkgName $InstalledVer -> $LatestVer available, updating..."
|
|
} elseif (-not $LatestVer) {
|
|
substep "could not reach PyPI, updating to be safe..."
|
|
}
|
|
}
|
|
|
|
# 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 2>&1 | Out-Null
|
|
# }
|
|
|
|
if (-not $SkipPythonDeps) {
|
|
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install --upgrade pip
|
|
} else {
|
|
Fast-Install --upgrade pip | 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.
|
|
|
|
# Triton/inductor filenames are long and can hit Windows MAX_PATH (260). With long
|
|
# paths on, cache under Studio home; else use a short drive-root dir for headroom.
|
|
if ($LongPathsEnabled) {
|
|
$TorchCacheDir = Join-Path $StudioHome "TORCHINDUCTOR_CACHE_DIR"
|
|
} else {
|
|
$TorchCacheDir = "C:\tc"
|
|
}
|
|
if (-not (Test-Path -LiteralPath $TorchCacheDir)) { [System.IO.Directory]::CreateDirectory($TorchCacheDir) | Out-Null }
|
|
$env:TORCHINDUCTOR_CACHE_DIR = $TorchCacheDir
|
|
[Environment]::SetEnvironmentVariable('TORCHINDUCTOR_CACHE_DIR', $TorchCacheDir, 'User')
|
|
substep "TORCHINDUCTOR_CACHE_DIR set to $TorchCacheDir (avoids MAX_PATH issues)"
|
|
|
|
if ($HasNvidiaSmi) {
|
|
$CuTag = Get-PytorchCudaTag
|
|
} else {
|
|
$CuTag = "cpu"
|
|
}
|
|
|
|
# ── GPU arch → newest compatible Windows ROCm wheel release ──
|
|
# Wheels bundle their own ROCm runtime; the installed HIP SDK version does
|
|
# not constrain which release to use. Always picks the newest release that
|
|
# supports the GPU architecture.
|
|
# ── AMD Windows ROCm torch override ──────────────────────────────────────────
|
|
# Uses AMD's arch-specific pip index (repo.amd.com/rocm/whl/{arch}/).
|
|
# Wheels bundle their own ROCm runtime; HIP SDK version is irrelevant.
|
|
$ROCmGfxArch = $script:ROCmGfxArch
|
|
$ROCmIndexUrl = $null
|
|
# Install AMD ROCm PyTorch wheels when ROCm is confirmed OR a gfx arch is known
|
|
# (name-inferred on Adrenalin-only hosts). The per-arch wheels bundle the runtime
|
|
# (rocm-sdk-libraries-<gfx>), so torch.cuda.is_available() is True without a HIP
|
|
# SDK -- which flips Studio out of chat-only (CHAT_ONLY) and enables Train/Export.
|
|
# Gating on $HasROCm alone left Strix Halo / Radeon 8060S on CPU torch; a failed
|
|
# ROCm install still falls back to CPU below, so this is safe.
|
|
if (($HasROCm -or $ROCmGfxArch) -and $CuTag -eq "cpu") {
|
|
$amdIndexBase = if ($env:UNSLOTH_ROCM_WINDOWS_MIRROR) { $env:UNSLOTH_ROCM_WINDOWS_MIRROR.TrimEnd('/') } else { "https://repo.amd.com/rocm/whl" }
|
|
$archFamilyMap = @{
|
|
"gfx1201" = "gfx120X-all"; "gfx1200" = "gfx120X-all" # RDNA 4
|
|
"gfx1151" = "gfx1151"; "gfx1150" = "gfx1150" # RDNA 3.5 (Strix Halo/Point)
|
|
"gfx1103" = "gfx110X-all"; "gfx1102" = "gfx110X-all" # RDNA 3
|
|
"gfx1101" = "gfx110X-all"; "gfx1100" = "gfx110X-all"
|
|
"gfx90a" = "gfx90a"; "gfx908" = "gfx908" # MI200/MI100
|
|
}
|
|
# gfx120X and Strix have a null _grouped_mm kernel on torch <2.11.0.
|
|
# Mirrors the $torchFloorMap in install.ps1 so both installers enforce
|
|
# the same floor and ceiling when pulling from AMD's per-arch index.
|
|
$torchFloorMap = @{
|
|
"gfx1201" = "torch>=2.11.0,<2.12.0"; "gfx1200" = "torch>=2.11.0,<2.12.0"
|
|
"gfx1151" = "torch>=2.11.0,<2.12.0"; "gfx1150" = "torch>=2.11.0,<2.12.0"
|
|
}
|
|
# Companion ranges for torchvision/torchaudio -- must stay in sync with the
|
|
# torch ceiling so pip can always find a consistent trio on AMD's per-arch
|
|
# index. AMD publishes each package independently and may add a newer
|
|
# torchvision (e.g. 0.27 for torch 2.12) before removing 0.26, which would
|
|
# cause pip to resolve an ABI-incompatible set if these are left bare.
|
|
# Matches _ROCM_TORCH_PKG_SPECS["rocm7.2"] in install_python_stack.py.
|
|
# Bump all three ceilings together when torch 2.12.x is validated.
|
|
$torchvisionFloorMap = @{
|
|
"gfx1201" = "torchvision>=0.26.0,<0.27.0"; "gfx1200" = "torchvision>=0.26.0,<0.27.0"
|
|
"gfx1151" = "torchvision>=0.26.0,<0.27.0"; "gfx1150" = "torchvision>=0.26.0,<0.27.0"
|
|
}
|
|
$torchaudioFloorMap = @{
|
|
"gfx1201" = "torchaudio>=2.11.0,<2.12.0"; "gfx1200" = "torchaudio>=2.11.0,<2.12.0"
|
|
"gfx1151" = "torchaudio>=2.11.0,<2.12.0"; "gfx1150" = "torchaudio>=2.11.0,<2.12.0"
|
|
}
|
|
$archFamily = if ($ROCmGfxArch -and $archFamilyMap.ContainsKey($ROCmGfxArch)) { $archFamilyMap[$ROCmGfxArch] } else { $null }
|
|
$ROCmTorchSpec = if ($ROCmGfxArch -and $torchFloorMap.ContainsKey($ROCmGfxArch)) { $torchFloorMap[$ROCmGfxArch] } else { "torch" }
|
|
$ROCmVisionSpec = if ($ROCmGfxArch -and $torchvisionFloorMap.ContainsKey($ROCmGfxArch)) { $torchvisionFloorMap[$ROCmGfxArch] } else { "torchvision" }
|
|
$ROCmAudioSpec = if ($ROCmGfxArch -and $torchaudioFloorMap.ContainsKey($ROCmGfxArch)) { $torchaudioFloorMap[$ROCmGfxArch] } else { "torchaudio" }
|
|
if ($archFamily) {
|
|
$ROCmIndexUrl = "$amdIndexBase/$archFamily/"
|
|
} elseif ($ROCmGfxArch) {
|
|
# GPU arch detected but not in the supported wheel map — warn explicitly
|
|
# so the user knows why they are getting CPU PyTorch instead of ROCm.
|
|
substep "[WARN] AMD GPU ($ROCmGfxArch) not in supported arch list -- falling back to CPU-only PyTorch" "Yellow"
|
|
substep " Supported: gfx1200/1201 (RDNA 4), gfx1150/1151 (RDNA 3.5), gfx1100-1103 (RDNA 3), gfx90a, gfx908" "Yellow"
|
|
} else {
|
|
# HIP SDK present ($HasROCm=true via amd-smi) but gcnArchName was not
|
|
# readable — warn rather than silently falling back to CPU PyTorch.
|
|
substep "[WARN] AMD GPU detected (HIP SDK present) but GPU arch could not be read -- falling back to CPU-only PyTorch" "Yellow"
|
|
substep " Arch detection requires hipinfo to report gcnArchName. Re-install the HIP SDK if this is unexpected." "Yellow"
|
|
}
|
|
}
|
|
|
|
$PyTorchWhlBase = if ($env:UNSLOTH_PYTORCH_MIRROR) { $env:UNSLOTH_PYTORCH_MIRROR.TrimEnd('/') } else { "https://download.pytorch.org/whl" }
|
|
|
|
$ROCmCpuFallback = $false
|
|
if ($ROCmIndexUrl) {
|
|
substep "installing PyTorch (AMD ROCm, $ROCmGfxArch)..."
|
|
if ($ROCmTorchSpec -ne "torch") {
|
|
substep " enforcing $ROCmTorchSpec $ROCmVisionSpec $ROCmAudioSpec (known _grouped_mm bug in older wheels)" "Cyan"
|
|
}
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install $ROCmTorchSpec $ROCmVisionSpec $ROCmAudioSpec --force-reinstall --index-url $ROCmIndexUrl
|
|
$torchInstallExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install $ROCmTorchSpec $ROCmVisionSpec $ROCmAudioSpec --force-reinstall --index-url $ROCmIndexUrl | Out-String
|
|
$torchInstallExit = $LASTEXITCODE
|
|
}
|
|
if ($torchInstallExit -ne 0) {
|
|
Write-Host "[WARN] AMD ROCm PyTorch install failed -- falling back to CPU" -ForegroundColor Yellow
|
|
Write-Host $output -ForegroundColor Yellow
|
|
$ROCmIndexUrl = $null
|
|
$ROCmCpuFallback = $true
|
|
} else {
|
|
# Tell install_python_stack.py to skip probe + suppress manual-install warning.
|
|
$env:UNSLOTH_ROCM_TORCH_INSTALLED = "1"
|
|
substep "GPU ROCm PyTorch installed ($ROCmGfxArch) -- training and GPU inference will use the GPU" "Cyan"
|
|
}
|
|
}
|
|
|
|
if (-not $ROCmIndexUrl -and $CuTag -eq "cpu") {
|
|
substep "installing PyTorch (CPU-only)..."
|
|
# After an AMD ROCm fallback, force-reinstall so a partially-installed ROCm torch
|
|
# (which still satisfies the CPU torch>= range) is replaced by the CPU build. Skip
|
|
# the forced reinstall on a genuine CPU-only host so the common path stays fast.
|
|
# Build the array directly: an if-expression collapses @("x") to a scalar string,
|
|
# which @splat would then enumerate char-by-char into broken single-letter args.
|
|
$cpuForce = @()
|
|
if ($ROCmCpuFallback) { $cpuForce = @("--force-reinstall") }
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install torch torchvision torchaudio @cpuForce --index-url "$PyTorchWhlBase/cpu"
|
|
$torchInstallExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install torch torchvision torchaudio @cpuForce --index-url "$PyTorchWhlBase/cpu" | Out-String
|
|
$torchInstallExit = $LASTEXITCODE
|
|
}
|
|
if ($torchInstallExit -ne 0) {
|
|
Write-Host "[FAILED] PyTorch install failed (exit code $torchInstallExit)" -ForegroundColor Red
|
|
Write-Host $output -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
} elseif (-not $ROCmIndexUrl) {
|
|
substep "installing PyTorch with CUDA support ($CuTag)..."
|
|
substep "(This download is ~2.8 GB -- may take a few minutes)"
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install torch torchvision torchaudio --index-url "$PyTorchWhlBase/$CuTag"
|
|
$torchInstallExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install torch torchvision torchaudio --index-url "$PyTorchWhlBase/$CuTag" | Out-String
|
|
$torchInstallExit = $LASTEXITCODE
|
|
}
|
|
if ($torchInstallExit -ne 0) {
|
|
Write-Host "[FAILED] PyTorch CUDA install failed (exit code $torchInstallExit)" -ForegroundColor Red
|
|
Write-Host $output -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
|
|
# Install Triton for Windows (enables torch.compile -- without it training can hang)
|
|
substep "installing Triton for Windows..."
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install "triton-windows<3.7"
|
|
$tritonInstallExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install "triton-windows<3.7" | Out-String
|
|
$tritonInstallExit = $LASTEXITCODE
|
|
}
|
|
if ($tritonInstallExit -ne 0) {
|
|
substep "Triton install failed -- torch.compile may not work" "Yellow"
|
|
Write-Host $output -ForegroundColor Yellow
|
|
} else {
|
|
substep "Triton for Windows installed (enables torch.compile)"
|
|
}
|
|
}
|
|
|
|
# No unsloth.exe rename needed. setup.ps1 runs *via* unsloth.exe, so renaming the
|
|
# running launcher only ever failed (WinError 32) and printed a scary warning. It's
|
|
# also unnecessary: install.ps1 sets SKIP_STUDIO_BASE=1 (base never reinstalled) and
|
|
# 'studio update' goes through uv (--upgrade-package), whose pip fallback no-ops on
|
|
# the already-satisfied bare unsloth/unsloth-zoo. Either way unsloth.exe stays.
|
|
|
|
# Ordered heavy dependency installation -- shared cross-platform script
|
|
substep "running ordered dependency installation..."
|
|
python "$PSScriptRoot\install_python_stack.py"
|
|
$stackExit = $LASTEXITCODE
|
|
# Restore ErrorActionPreference after pip/python work
|
|
$ErrorActionPreference = $prevEAP
|
|
if ($stackExit -ne 0) {
|
|
Write-Host "[FAILED] Python dependency installation failed (exit code $stackExit)" -ForegroundColor Red
|
|
Write-Host " Re-run the installer or check the error above for details." -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
|
|
} else {
|
|
step "python" "dependencies up to date"
|
|
# Restore ErrorActionPreference (was lowered for pip/python section)
|
|
$ErrorActionPreference = $prevEAP
|
|
}
|
|
|
|
# ── Pre-install transformers 5.x into .venv_t5_530/, .venv_t5_550/, and .venv_t5_510/ ──
|
|
# Runs outside the deps fast-path gate so that upgrades from the legacy
|
|
# single .venv_t5 are always migrated to the tiered layout.
|
|
# T5 sidecar venvs live under the resolved $StudioHome so custom installs are self-contained.
|
|
$VenvT5_530Dir = Join-Path $StudioHome ".venv_t5_530"
|
|
$VenvT5_550Dir = Join-Path $StudioHome ".venv_t5_550"
|
|
$VenvT5_510Dir = Join-Path $StudioHome ".venv_t5_510"
|
|
$VenvT5Legacy = Join-Path $StudioHome ".venv_t5"
|
|
|
|
function Test-TargetPackageVersion {
|
|
param(
|
|
[Parameter(Mandatory = $true)][string]$TargetDir,
|
|
[Parameter(Mandatory = $true)][string]$PackageName,
|
|
[Parameter(Mandatory = $true)][string]$ExpectedVersion
|
|
)
|
|
if (-not (Test-Path -LiteralPath $TargetDir -PathType Container)) { return $false }
|
|
$packageNorm = $PackageName.Replace("-", "_")
|
|
foreach ($pattern in @("$packageNorm-*.dist-info", "$PackageName-*.dist-info")) {
|
|
foreach ($distInfo in @(Get-ChildItem -LiteralPath $TargetDir -Directory -Filter $pattern -ErrorAction SilentlyContinue)) {
|
|
$metadata = Join-Path $distInfo.FullName "METADATA"
|
|
if (-not (Test-Path -LiteralPath $metadata -PathType Leaf)) { continue }
|
|
foreach ($line in (Get-Content -LiteralPath $metadata -ErrorAction SilentlyContinue)) {
|
|
if ($line -eq "Version: $ExpectedVersion") { return $true }
|
|
}
|
|
}
|
|
}
|
|
return $false
|
|
}
|
|
|
|
$_NeedT5Install = $false
|
|
if (Test-Path -LiteralPath $VenvT5Legacy) {
|
|
Assert-StudioOwnedOrAbsent -Path $VenvT5Legacy -Label "legacy transformers sidecar venv"
|
|
Remove-Item -LiteralPath $VenvT5Legacy -Recurse -Force
|
|
$_NeedT5Install = $true
|
|
}
|
|
if (-not (Test-Path -LiteralPath $VenvT5_530Dir)) { $_NeedT5Install = $true }
|
|
if (-not (Test-Path -LiteralPath $VenvT5_550Dir)) { $_NeedT5Install = $true }
|
|
if (-not (Test-Path -LiteralPath $VenvT5_510Dir)) { $_NeedT5Install = $true }
|
|
if (-not (Test-TargetPackageVersion -TargetDir $VenvT5_530Dir -PackageName "transformers" -ExpectedVersion "5.3.0")) { $_NeedT5Install = $true }
|
|
if (-not (Test-TargetPackageVersion -TargetDir $VenvT5_550Dir -PackageName "transformers" -ExpectedVersion "5.5.0")) { $_NeedT5Install = $true }
|
|
if (-not (Test-TargetPackageVersion -TargetDir $VenvT5_510Dir -PackageName "transformers" -ExpectedVersion "5.10.2")) { $_NeedT5Install = $true }
|
|
# Also reinstall when python deps were updated
|
|
if (-not $SkipPythonDeps) { $_NeedT5Install = $true }
|
|
|
|
if ($_NeedT5Install) {
|
|
Write-Host ""
|
|
|
|
$prevEAP_t5 = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
|
|
# --- .venv_t5_530 (transformers 5.3.0) ---
|
|
substep "pre-installing transformers 5.3.0 for newer model support..."
|
|
Assert-StudioOwnedOrAbsent -Path $VenvT5_530Dir -Label "transformers 5.3 sidecar venv"
|
|
if (Test-Path -LiteralPath $VenvT5_530Dir) { Remove-Item -LiteralPath $VenvT5_530Dir -Recurse -Force }
|
|
[System.IO.Directory]::CreateDirectory($VenvT5_530Dir) | Out-Null
|
|
Mark-StudioOwned -Path $VenvT5_530Dir
|
|
foreach ($pkg in @("transformers==5.3.0", "huggingface_hub==1.8.0", "hf_xet==1.4.2")) {
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install --target $VenvT5_530Dir --no-deps $pkg
|
|
$t5PkgExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install --target $VenvT5_530Dir --no-deps $pkg | Out-String
|
|
$t5PkgExit = $LASTEXITCODE
|
|
}
|
|
if ($t5PkgExit -ne 0) {
|
|
Write-Host "[FAIL] Could not install $pkg into .venv_t5_530/" -ForegroundColor Red
|
|
Write-Host $output -ForegroundColor Red
|
|
$ErrorActionPreference = $prevEAP_t5
|
|
exit 1
|
|
}
|
|
}
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install --target $VenvT5_530Dir tiktoken
|
|
$tiktokenInstallExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install --target $VenvT5_530Dir tiktoken | Out-String
|
|
$tiktokenInstallExit = $LASTEXITCODE
|
|
}
|
|
if ($tiktokenInstallExit -ne 0) {
|
|
substep "Could not install tiktoken into .venv_t5_530/ -- Qwen tokenizers may fail" "Yellow"
|
|
}
|
|
step "transformers" "5.3.0 pre-installed"
|
|
|
|
# --- .venv_t5_550 (transformers 5.5.0) ---
|
|
substep "pre-installing transformers 5.5.0 for Gemma 4 support..."
|
|
Assert-StudioOwnedOrAbsent -Path $VenvT5_550Dir -Label "transformers 5.5 sidecar venv"
|
|
if (Test-Path -LiteralPath $VenvT5_550Dir) { Remove-Item -LiteralPath $VenvT5_550Dir -Recurse -Force }
|
|
[System.IO.Directory]::CreateDirectory($VenvT5_550Dir) | Out-Null
|
|
Mark-StudioOwned -Path $VenvT5_550Dir
|
|
foreach ($pkg in @("transformers==5.5.0", "huggingface_hub==1.8.0", "hf_xet==1.4.2")) {
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install --target $VenvT5_550Dir --no-deps $pkg
|
|
$t5PkgExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install --target $VenvT5_550Dir --no-deps $pkg | Out-String
|
|
$t5PkgExit = $LASTEXITCODE
|
|
}
|
|
if ($t5PkgExit -ne 0) {
|
|
Write-Host "[FAIL] Could not install $pkg into .venv_t5_550/" -ForegroundColor Red
|
|
Write-Host $output -ForegroundColor Red
|
|
$ErrorActionPreference = $prevEAP_t5
|
|
exit 1
|
|
}
|
|
}
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install --target $VenvT5_550Dir tiktoken
|
|
$tiktokenInstallExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install --target $VenvT5_550Dir tiktoken | Out-String
|
|
$tiktokenInstallExit = $LASTEXITCODE
|
|
}
|
|
if ($tiktokenInstallExit -ne 0) {
|
|
substep "Could not install tiktoken into .venv_t5_550/ -- Qwen tokenizers may fail" "Yellow"
|
|
}
|
|
step "transformers" "5.5.0 pre-installed"
|
|
|
|
# --- .venv_t5_510 (transformers 5.10.2) ---
|
|
substep "pre-installing transformers 5.10.2 for Gemma 4 Unified support..."
|
|
Assert-StudioOwnedOrAbsent -Path $VenvT5_510Dir -Label "transformers 5.10 sidecar venv"
|
|
if (Test-Path -LiteralPath $VenvT5_510Dir) { Remove-Item -LiteralPath $VenvT5_510Dir -Recurse -Force }
|
|
[System.IO.Directory]::CreateDirectory($VenvT5_510Dir) | Out-Null
|
|
Mark-StudioOwned -Path $VenvT5_510Dir
|
|
foreach ($pkg in @("transformers==5.10.2", "huggingface_hub==1.8.0", "hf_xet==1.4.2")) {
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install --target $VenvT5_510Dir --no-deps $pkg
|
|
$t5PkgExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install --target $VenvT5_510Dir --no-deps $pkg | Out-String
|
|
$t5PkgExit = $LASTEXITCODE
|
|
}
|
|
if ($t5PkgExit -ne 0) {
|
|
Write-Host "[FAIL] Could not install $pkg into .venv_t5_510/" -ForegroundColor Red
|
|
Write-Host $output -ForegroundColor Red
|
|
$ErrorActionPreference = $prevEAP_t5
|
|
exit 1
|
|
}
|
|
}
|
|
if ($script:UnslothVerbose) {
|
|
Fast-Install --target $VenvT5_510Dir tiktoken
|
|
$tiktokenInstallExit = $LASTEXITCODE
|
|
$output = ""
|
|
} else {
|
|
$output = Fast-Install --target $VenvT5_510Dir tiktoken | Out-String
|
|
$tiktokenInstallExit = $LASTEXITCODE
|
|
}
|
|
if ($tiktokenInstallExit -ne 0) {
|
|
substep "Could not install tiktoken into .venv_t5_510/ -- Qwen tokenizers may fail" "Yellow"
|
|
}
|
|
$ErrorActionPreference = $prevEAP_t5
|
|
step "transformers" "5.10.2 pre-installed"
|
|
|
|
} # end $_NeedT5Install
|
|
|
|
# ==========================================================================
|
|
# PHASE 3.4: Prefer prebuilt llama.cpp bundles before source build
|
|
# ==========================================================================
|
|
# Nest llama.cpp under $StudioHome only for real env-overrides, never the
|
|
# legacy default. Reuses $StudioHomeIsCustom from the canonical comparison
|
|
# computed above so the llama.cpp nest matches ownership-guard semantics.
|
|
if ($StudioHomeIsCustom) {
|
|
$UnslothHome = $StudioHome
|
|
} else {
|
|
$UnslothHome = Join-Path $env:USERPROFILE ".unsloth"
|
|
}
|
|
if (-not (Test-Path -LiteralPath $UnslothHome)) { [System.IO.Directory]::CreateDirectory($UnslothHome) | Out-Null }
|
|
$LlamaCppDir = Join-Path $UnslothHome "llama.cpp"
|
|
$NeedLlamaSourceBuild = $false
|
|
$SkipPrebuiltInstall = $false
|
|
$RequestedLlamaTag = if ($env:UNSLOTH_LLAMA_TAG) { $env:UNSLOTH_LLAMA_TAG } else { $DefaultLlamaTag }
|
|
# Every host installs the fork's app-* prebuilts now: GPU Windows (CUDA / ROCm)
|
|
# already did, and the fork now also ships the CPU bundles for Windows x64 and
|
|
# arm64 (windows-cpu / windows-arm64). ggml-org artifacts are no longer used by
|
|
# default. Mirrors setup.sh's routing.
|
|
$HelperReleaseRepo = "unslothai/llama.cpp"
|
|
$LlamaPr = if ($env:UNSLOTH_LLAMA_PR) { $env:UNSLOTH_LLAMA_PR.Trim() } else { "" }
|
|
|
|
$LlamaPrForce = if ($env:UNSLOTH_LLAMA_PR_FORCE) { $env:UNSLOTH_LLAMA_PR_FORCE.Trim() } else { $DefaultLlamaPrForce }
|
|
$LlamaSource = $DefaultLlamaSource
|
|
if ($LlamaSource.EndsWith('.git')) { $LlamaSource = $LlamaSource.Substring(0, $LlamaSource.Length - 4) }
|
|
$ResolvedSourceUrl = $LlamaSource
|
|
$ResolvedSourceRef = $RequestedLlamaTag
|
|
$ResolvedSourceRefKind = "tag"
|
|
$ResolvedLlamaTag = $RequestedLlamaTag
|
|
|
|
if ($env:UNSLOTH_LLAMA_FORCE_COMPILE -eq "1") {
|
|
$NeedLlamaSourceBuild = $true
|
|
$SkipPrebuiltInstall = $true
|
|
}
|
|
|
|
function Invoke-LlamaHelper {
|
|
param(
|
|
[string[]]$Arguments,
|
|
[string]$StderrPath = $null
|
|
)
|
|
|
|
$previousErrorActionPreference = $ErrorActionPreference
|
|
$previousNativeErrorPreference = $null
|
|
$restoreNativeErrorPreference = $false
|
|
$ErrorActionPreference = "Continue"
|
|
if ($PSVersionTable.PSVersion.Major -ge 7) {
|
|
$previousNativeErrorPreference = $PSNativeCommandUseErrorActionPreference
|
|
$PSNativeCommandUseErrorActionPreference = $false
|
|
$restoreNativeErrorPreference = $true
|
|
}
|
|
|
|
try {
|
|
# Capture all output (stdout + stderr) so that PowerShell does not
|
|
# convert stderr lines into visible ErrorRecord objects. Separate
|
|
# stdout from stderr afterwards.
|
|
$allOutput = & python "$PSScriptRoot\install_llama_prebuilt.py" @Arguments 2>&1
|
|
$exitCode = $LASTEXITCODE
|
|
$stdoutLines = @()
|
|
$stderrLines = @()
|
|
foreach ($line in $allOutput) {
|
|
if ($line -is [System.Management.Automation.ErrorRecord]) {
|
|
$stderrLines += $line.ToString()
|
|
} else {
|
|
$stdoutLines += $line
|
|
}
|
|
}
|
|
if ($StderrPath -and $stderrLines.Count -gt 0) {
|
|
$stderrLines | Out-File -FilePath $StderrPath -Encoding utf8
|
|
}
|
|
return [pscustomobject]@{
|
|
Output = $stdoutLines
|
|
ExitCode = $exitCode
|
|
}
|
|
} finally {
|
|
$ErrorActionPreference = $previousErrorActionPreference
|
|
if ($restoreNativeErrorPreference) {
|
|
$PSNativeCommandUseErrorActionPreference = $previousNativeErrorPreference
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($LlamaSource -ne "https://github.com/ggml-org/llama.cpp") {
|
|
step "llama.cpp" "custom source: $LlamaSource -- forcing source build" "Yellow"
|
|
$NeedLlamaSourceBuild = $true
|
|
$SkipPrebuiltInstall = $true
|
|
}
|
|
|
|
if (-not $LlamaPr -and $LlamaPrForce -and $LlamaPrForce -match '^\d+$' -and [int]$LlamaPrForce -gt 0) {
|
|
$LlamaPr = $LlamaPrForce
|
|
step "llama.cpp" "baked-in PR_FORCE=$LlamaPrForce" "Yellow"
|
|
}
|
|
|
|
if ($LlamaPr) {
|
|
if ($LlamaPr -notmatch '^\d+$' -or [int]$LlamaPr -le 0) {
|
|
Write-Host "[ERROR] UNSLOTH_LLAMA_PR=$LlamaPr is not a valid PR number" -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
step "llama.cpp" "UNSLOTH_LLAMA_PR=$LlamaPr -- will build from PR head" "Yellow"
|
|
$ResolvedLlamaTag = "pr-$LlamaPr"
|
|
$ResolvedSourceUrl = $LlamaSource
|
|
$ResolvedSourceRef = "pr-$LlamaPr"
|
|
$ResolvedSourceRefKind = "pull"
|
|
$NeedLlamaSourceBuild = $true
|
|
$SkipPrebuiltInstall = $true
|
|
}
|
|
|
|
$LocalLlamaCppLinked = $false
|
|
$LocalLlamaCppSrc = $env:UNSLOTH_LOCAL_LLAMA_CPP_DIR
|
|
if ($LocalLlamaCppSrc) {
|
|
if (-not (Test-Path -LiteralPath $LocalLlamaCppSrc -PathType Container)) {
|
|
step "llama.cpp" "UNSLOTH_LOCAL_LLAMA_CPP_DIR does not exist: $LocalLlamaCppSrc" "Red"
|
|
exit 1
|
|
}
|
|
$ResolvedLocal = (Resolve-Path -LiteralPath $LocalLlamaCppSrc).Path
|
|
# Reusing a local dir disables both the prebuilt download and the source
|
|
# build, so a runnable llama-server.exe must already be present. Accept any
|
|
# layout LlamaCppBackend._layout_candidates() resolves (root-level, build\bin,
|
|
# or build\bin\Release) so the flag never rejects a tree Studio could run.
|
|
$LocalLlamaServerFound = $false
|
|
foreach ($_cand in @(
|
|
(Join-Path $ResolvedLocal "llama-server.exe"),
|
|
(Join-Path $ResolvedLocal "build\bin\llama-server.exe"),
|
|
(Join-Path $ResolvedLocal "build\bin\Release\llama-server.exe"))) {
|
|
if (Test-Path -LiteralPath $_cand) { $LocalLlamaServerFound = $true; break }
|
|
}
|
|
if ($ResolvedLocal -eq $LlamaCppDir) {
|
|
# Points at the canonical install location itself: never delete-then-link
|
|
# onto itself. Reuse an existing build here (skip prebuilt + source) so the
|
|
# staged prebuilt installer can't replace a build the user asked to reuse;
|
|
# if nothing is built yet, fall through to the normal install.
|
|
if ($LocalLlamaServerFound) {
|
|
substep "UNSLOTH_LOCAL_LLAMA_CPP_DIR is the canonical install location and already holds a build; reusing it" "Yellow"
|
|
$LocalLlamaCppLinked = $true
|
|
$NeedLlamaSourceBuild = $false
|
|
} else {
|
|
substep "UNSLOTH_LOCAL_LLAMA_CPP_DIR points to the canonical install location with nothing built there yet; running the normal install" "Yellow"
|
|
}
|
|
} else {
|
|
# Fail clearly rather than junction an unbuilt or wrong-platform checkout
|
|
# and leave Studio with no usable binary.
|
|
if (-not $LocalLlamaServerFound) {
|
|
step "llama.cpp" "no llama-server.exe under $ResolvedLocal (looked for .\llama-server.exe, .\build\bin and .\build\bin\Release) -- build llama.cpp there first, or drop --with-llama-cpp-dir" "Red"
|
|
exit 1
|
|
}
|
|
# If the target is already a junction/symlink (e.g. a previous
|
|
# --with-llama-cpp-dir run), delete only the link via DirectoryInfo.Delete().
|
|
# Remove-Item -Recurse -Force on a reparse point can traverse the link and
|
|
# wipe the user's real llama.cpp directory on PowerShell 5.1. Dropping the
|
|
# stale link here also keeps the custom-home ownership check below idempotent.
|
|
# Use Get-Item -Force (not Test-Path): a *broken* junction whose target was
|
|
# moved/deleted makes Test-Path return false, which would leave the dangling
|
|
# link in place and make mklink below fail; Get-Item still resolves it so we
|
|
# can remove it and relink to a new valid directory.
|
|
$existing = Get-Item -LiteralPath $LlamaCppDir -Force -ErrorAction SilentlyContinue
|
|
if ($existing -and ($existing.Attributes -band [System.IO.FileAttributes]::ReparsePoint)) {
|
|
$existing.Delete()
|
|
}
|
|
if ($StudioHomeIsCustom) {
|
|
Assert-StudioOwnedOrAbsent -Path $LlamaCppDir -Label "llama.cpp install"
|
|
}
|
|
if (Test-Path -LiteralPath $LlamaCppDir) {
|
|
Remove-Item -Recurse -Force -LiteralPath $LlamaCppDir -ErrorAction SilentlyContinue
|
|
# A locked/in-use tree can silently survive removal (SilentlyContinue
|
|
# masks it). Don't then junction/copy over a half-present dir; mirror the
|
|
# prebuilt path's active-process handling and stop with a clear message.
|
|
if (Test-Path -LiteralPath $LlamaCppDir) {
|
|
step "llama.cpp" "install blocked by active llama.cpp process" "Yellow"
|
|
substep "Close Studio or other llama.cpp users and retry" "Yellow"
|
|
exit 3
|
|
}
|
|
}
|
|
cmd /c "mklink /J `"$LlamaCppDir`" `"$ResolvedLocal`"" 2>&1 | Out-Null
|
|
if ($LASTEXITCODE -ne 0) {
|
|
substep "Could not create directory junction; copying instead..." "Yellow"
|
|
Copy-Item -Recurse -LiteralPath $ResolvedLocal -Destination $LlamaCppDir
|
|
}
|
|
Write-Host ""
|
|
step "llama.cpp" "linked local directory: $ResolvedLocal"
|
|
$LocalLlamaCppLinked = $true
|
|
$NeedLlamaSourceBuild = $false
|
|
}
|
|
}
|
|
|
|
if ($LocalLlamaCppLinked) {
|
|
# local directory linked above; skip prebuilt install
|
|
} elseif ($env:UNSLOTH_LLAMA_FORCE_COMPILE -eq "1") {
|
|
Write-Host ""
|
|
substep "UNSLOTH_LLAMA_FORCE_COMPILE=1 -- skipping prebuilt llama.cpp install" "Yellow"
|
|
$NeedLlamaSourceBuild = $true
|
|
} elseif ($SkipPrebuiltInstall) {
|
|
Write-Host ""
|
|
substep "Skipping prebuilt install -- falling back to source build" "Yellow"
|
|
} else {
|
|
Write-Host ""
|
|
if (Test-Path -LiteralPath $LlamaCppDir) {
|
|
substep "Existing llama.cpp install detected -- validating staged prebuilt update before replacement"
|
|
# If the existing install is the wrong kind (e.g. windows-cpu on a ROCm
|
|
# machine that should have windows-rocm), remove it so the installer is
|
|
# forced to download the correct variant rather than skipping on tag match.
|
|
$existingMetaPath = Join-Path $LlamaCppDir "UNSLOTH_PREBUILT_INFO.json"
|
|
if (Test-Path $existingMetaPath) {
|
|
try {
|
|
$existingMeta = Get-Content $existingMetaPath -Raw | ConvertFrom-Json
|
|
$existingKind = $existingMeta.install_kind
|
|
# A ROCm host may legitimately carry the fork's windows-rocm bundle
|
|
# or the upstream windows-hip fallback, so accept either and never
|
|
# treat a valid ROCm install as mismatched. A name-inferred gfx
|
|
# arch (Adrenalin-only, no confirmed runtime) still counts as
|
|
# ROCm-capable -- the ROCm prebuilt bundles its own runtime,
|
|
# mirroring the --rocm-gfx forward below. The CPU branch covers both
|
|
# the x64 windows-cpu and arm64 windows-arm64 bundles (Windows arm64
|
|
# has no GPU prebuilt). NOTE: this block is currently inert --
|
|
# write_prebuilt_metadata does not persist an install_kind key, so
|
|
# $existingKind is always null; keep $expectedKinds in sync with the
|
|
# kinds install_llama_prebuilt.py installs before relying on it.
|
|
$expectedKinds = if ($HasROCm -or $script:ROCmGfxArch) { @("windows-rocm", "windows-hip") } elseif ($HasNvidiaSmi) { @("windows-cuda") } else { @("windows-cpu", "windows-arm64") }
|
|
if ($existingKind -and ($existingKind -notin $expectedKinds)) {
|
|
substep "Removing mismatched llama.cpp install (found '$existingKind', need one of: $($expectedKinds -join ', '))..."
|
|
Remove-Item -Recurse -Force -LiteralPath $LlamaCppDir -ErrorAction SilentlyContinue
|
|
}
|
|
} catch {
|
|
# unreadable metadata -- let the installer handle it
|
|
}
|
|
}
|
|
}
|
|
substep "installing prebuilt llama.cpp bundle (preferred path)..."
|
|
# why: install_llama_prebuilt.py uses os.replace(), which would displace
|
|
# an unrelated $env:UNSLOTH_STUDIO_HOME\llama.cpp before the source-build
|
|
# ownership check below ever runs.
|
|
if ($StudioHomeIsCustom) {
|
|
Assert-StudioOwnedOrAbsent -Path $LlamaCppDir -Label "llama.cpp install"
|
|
}
|
|
$prebuiltArgs = @(
|
|
"$PSScriptRoot\install_llama_prebuilt.py",
|
|
"--install-dir", $LlamaCppDir,
|
|
"--llama-tag", $RequestedLlamaTag,
|
|
"--published-repo", $HelperReleaseRepo
|
|
)
|
|
if ($HasROCm) {
|
|
$prebuiltArgs += "--has-rocm"
|
|
}
|
|
# Forward the resolved gfx arch so the per-gfx ROCm prebuilt is picked even
|
|
# when the installer's probe can't confirm the runtime (amd-smi-only /
|
|
# Adrenalin-only, name-inferred arch). --rocm-gfx is authoritative and
|
|
# implies ROCm in install_llama_prebuilt.py, so the GPU prebuilt is selected
|
|
# even with $HasROCm false. Gating on $HasROCm gave Strix Halo / 8060S CPU.
|
|
if ($script:ROCmGfxArch) {
|
|
$prebuiltArgs += @("--rocm-gfx", $script:ROCmGfxArch)
|
|
}
|
|
if ($env:UNSLOTH_LLAMA_RELEASE_TAG) {
|
|
$prebuiltArgs += @("--published-release-tag", $env:UNSLOTH_LLAMA_RELEASE_TAG)
|
|
}
|
|
$prevEAPPrebuilt = $ErrorActionPreference
|
|
$ErrorActionPreference = "Continue"
|
|
$previousNativeErrorPreference = $null
|
|
$restoreNativeErrorPreference = $false
|
|
if ($PSVersionTable.PSVersion.Major -ge 7) {
|
|
$previousNativeErrorPreference = $PSNativeCommandUseErrorActionPreference
|
|
$PSNativeCommandUseErrorActionPreference = $false
|
|
$restoreNativeErrorPreference = $true
|
|
}
|
|
try {
|
|
if ($script:UnslothVerbose) {
|
|
# Show live output in verbose mode while still capturing for error log
|
|
$prebuiltLog = Join-Path $env:TEMP "unsloth-prebuilt-$PID.log"
|
|
& python @prebuiltArgs 2>&1 | Tee-Object -FilePath $prebuiltLog | Out-Host
|
|
$prebuiltExit = $LASTEXITCODE
|
|
$prebuiltOutput = if (Test-Path $prebuiltLog) { Get-Content $prebuiltLog -Raw } else { "" }
|
|
Remove-Item $prebuiltLog -ErrorAction SilentlyContinue
|
|
} else {
|
|
$prebuiltOutput = & python @prebuiltArgs 2>&1 | Out-String
|
|
$prebuiltExit = $LASTEXITCODE
|
|
}
|
|
} finally {
|
|
if ($restoreNativeErrorPreference) {
|
|
$PSNativeCommandUseErrorActionPreference = $previousNativeErrorPreference
|
|
}
|
|
}
|
|
$ErrorActionPreference = $prevEAPPrebuilt
|
|
|
|
if ($prebuiltExit -eq 0) {
|
|
if ($prebuiltOutput -match "already matches") {
|
|
step "llama.cpp" "prebuilt up to date and validated"
|
|
} else {
|
|
step "llama.cpp" "prebuilt installed and validated"
|
|
}
|
|
if ($StudioHomeIsCustom -and (Test-Path -LiteralPath $LlamaCppDir -PathType Container)) {
|
|
Mark-StudioOwned -Path $LlamaCppDir
|
|
}
|
|
$installedRelease = Get-InstalledLlamaPrebuiltRelease -InstallDir $LlamaCppDir
|
|
if ($installedRelease) {
|
|
substep $installedRelease
|
|
}
|
|
} elseif ($prebuiltExit -eq 3) {
|
|
step "llama.cpp" "install blocked by active llama.cpp process" "Yellow"
|
|
Write-LlamaFailureLog -Output $prebuiltOutput
|
|
if (Test-Path -LiteralPath $LlamaCppDir) {
|
|
substep "Existing install was restored" "Yellow"
|
|
}
|
|
substep "Close Studio or other llama.cpp users and retry" "Yellow"
|
|
exit 3
|
|
} else {
|
|
step "llama.cpp" "prebuilt install failed (continuing)" "Yellow"
|
|
Write-LlamaFailureLog -Output $prebuiltOutput
|
|
if (Test-Path -LiteralPath $LlamaCppDir) {
|
|
substep "Prebuilt update failed; existing install was restored or cleaned before source build fallback" "Yellow"
|
|
}
|
|
substep "Prebuilt llama.cpp path unavailable or failed validation -- falling back to source build" "Yellow"
|
|
$NeedLlamaSourceBuild = $true
|
|
}
|
|
}
|
|
|
|
# ==========================================================================
|
|
# 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 = $false
|
|
|
|
if ($NeedLlamaSourceBuild) {
|
|
# 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
|
|
substep "OpenSSL dev found at $OpenSslRoot"
|
|
} else {
|
|
Write-Host ""
|
|
substep "installing OpenSSL dev (for HTTPS in llama-server)..."
|
|
$HasWinget = $null -ne (Get-Command winget -ErrorAction SilentlyContinue)
|
|
if ($HasWinget) {
|
|
winget install -e --id ShiningLight.OpenSSL.Dev --source winget --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
|
|
substep "OpenSSL dev installed at $OpenSslRoot"
|
|
break
|
|
}
|
|
}
|
|
}
|
|
if (-not $OpenSslAvailable) {
|
|
substep "OpenSSL dev not available -- llama-server will be built without HTTPS" "Yellow"
|
|
}
|
|
}
|
|
} else {
|
|
substep "OpenSSL dev install skipped -- prebuilt llama.cpp already validated" "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 were installed in Phase 1; the CUDA
|
|
# Toolkit is resolved lazily just below via Resolve-CudaToolkit (source build only).
|
|
$OriginalLlamaCppDir = $LlamaCppDir
|
|
$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 -LiteralPath $LlamaServerBin) {
|
|
$CmakeCacheFile = Join-Path $BuildDir "CMakeCache.txt"
|
|
if (Test-Path -LiteralPath $CmakeCacheFile) {
|
|
$cachedCuda = Select-String -LiteralPath $CmakeCacheFile -Pattern 'GGML_CUDA:BOOL=ON' -Quiet
|
|
if ($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
|
|
}
|
|
}
|
|
}
|
|
|
|
# Install build tools now (last resort) rather than eagerly in Phase 1, so the
|
|
# prebuilt path stays fast. Same condition as the if/elseif chain below: a source
|
|
# build runs only when needed and no usable binary is already present. A linked
|
|
# local dir sets $NeedLlamaSourceBuild = $false, so this no-ops for that path.
|
|
$WillBuildLlamaFromSource = $NeedLlamaSourceBuild -and `
|
|
-not ((Test-Path -LiteralPath $LlamaServerBin) -and -not $NeedRebuild -and $RequestedLlamaTag -ne "master")
|
|
if ($WillBuildLlamaFromSource) {
|
|
Ensure-BuildToolsForLlamaSourceBuild
|
|
# refresh so the chain below sees a newly installed cmake
|
|
$HasCmakeForBuild = $null -ne (Get-Command cmake -ErrorAction SilentlyContinue)
|
|
}
|
|
|
|
if ($LocalLlamaCppLinked) {
|
|
# Local dir linked above -- honor the flag's contract: skip BOTH the prebuilt
|
|
# download and the source build. Falling through here would run CMake inside
|
|
# the user's checkout (via the junction) when it lacks build\bin\Release\llama-server.exe.
|
|
Write-Host ""
|
|
step "llama.cpp" "linked (skipping build)"
|
|
} elseif (-not $NeedLlamaSourceBuild) {
|
|
Write-Host ""
|
|
step "llama.cpp" "prebuilt (validated)"
|
|
} elseif ((Test-Path -LiteralPath $LlamaServerBin) -and -not $NeedRebuild -and $RequestedLlamaTag -ne "master") {
|
|
# Skip rebuild only for pinned tags (e.g. b8635). When the requested
|
|
# tag is "master" (a moving target), always rebuild so the binary picks
|
|
# up new model architecture support (e.g. Gemma 4).
|
|
Write-Host ""
|
|
step "llama.cpp" "already built"
|
|
} elseif (-not $HasCmakeForBuild) {
|
|
Write-Host ""
|
|
if (-not $HasNvidiaSmi) {
|
|
# CPU-only machines depend entirely on llama-server for GGUF chat -- cmake is required
|
|
substep "CMake is required to build llama-server for GGUF chat mode." "Yellow"
|
|
substep "Continuing setup without llama.cpp build." "Yellow"
|
|
substep "Install CMake from https://cmake.org/download/ and re-run setup." "Yellow"
|
|
}
|
|
step "llama.cpp" "build skipped (cmake not available)" "Yellow"
|
|
substep "GGUF inference and export will not be available." "Yellow"
|
|
substep "Install CMake from https://cmake.org/download/ and re-run setup." "Yellow"
|
|
$script:LlamaCppDegraded = $true
|
|
} else {
|
|
# Finalize the VS generator (gate/fallback below) BEFORE Resolve-CudaToolkit,
|
|
# which copies the CUDA .targets into the current generator's dir; a later swap
|
|
# would strand them. The CMake 4.2 gate for VS 2026 is checked only here, in the
|
|
# source-build path, so a VS 2026 + cmake < 4.2 host can still use the prebuilt. (#6473)
|
|
if ($CmakeGenerator -match 'Visual Studio 18\b') {
|
|
if (-not (Test-CmakeCanDriveGenerator -Generator $CmakeGenerator)) {
|
|
$cmakeVerObj = Get-CmakeVersion
|
|
$cmakeVerStr = if ($cmakeVerObj) { $cmakeVerObj.ToString() } else { '0.0' }
|
|
substep "CMake $cmakeVerStr cannot drive the Visual Studio 2026 generator (need 4.2+ or a VS-bundled cmake) -- updating via winget..." "Yellow"
|
|
if ($null -ne (Get-Command winget -ErrorAction SilentlyContinue)) {
|
|
# upgrade first (fast if Kitware.CMake is already a winget app), then
|
|
# prepend the default dir so the new cmake wins over an older one on PATH
|
|
try {
|
|
Invoke-SetupCommand { winget upgrade Kitware.CMake --source winget --accept-package-agreements --accept-source-agreements } | Out-Null
|
|
Refresh-Environment
|
|
} catch { substep "CMake winget upgrade failed: $($_.Exception.Message)" "Yellow" }
|
|
Add-DefaultCmakeToPath | Out-Null
|
|
# upgrade no-ops if the cmake came from Scoop/Chocolatey/VS, not the
|
|
# Kitware winget package; install it so a 4.2+ cmake is available
|
|
if (-not (Test-CmakeCanDriveGenerator -Generator $CmakeGenerator)) {
|
|
try {
|
|
Invoke-SetupCommand { winget install Kitware.CMake --source winget --accept-package-agreements --accept-source-agreements } | Out-Null
|
|
Refresh-Environment
|
|
} catch { substep "CMake winget install failed: $($_.Exception.Message)" "Yellow" }
|
|
Add-DefaultCmakeToPath | Out-Null
|
|
}
|
|
}
|
|
if (-not (Test-CmakeCanDriveGenerator -Generator $CmakeGenerator)) {
|
|
# cmake still cannot drive VS 2026; before failing, fall back to an
|
|
# older installed VS whose generator it can drive (e.g. VS 2022 + old
|
|
# cmake on an offline box keeps building)
|
|
$fallback = Get-FallbackVsGenerator
|
|
if ($fallback) {
|
|
substep "CMake cannot drive $CmakeGenerator; falling back to $($fallback.Generator)" "Yellow"
|
|
$CmakeGenerator = $fallback.Generator
|
|
$VsInstallPath = $fallback.InstallPath
|
|
} else {
|
|
Write-Host "[ERROR] CMake 4.2+ is required to build llama.cpp with the Visual Studio 2026 generator, and no older Visual Studio toolchain was found to fall back to." -ForegroundColor Red
|
|
Write-Host " Upgrade CMake from https://cmake.org/download/ and re-run, or use a prebuilt llama.cpp bundle." -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
}
|
|
}
|
|
substep "CMake can drive the $CmakeGenerator generator"
|
|
}
|
|
|
|
# CUDA resolved here (fail fast if none), after the final VS generator so its
|
|
# .targets land in the toolset cmake actually uses.
|
|
if ($HasNvidiaSmi) { Resolve-CudaToolkit -RequireOrExit }
|
|
|
|
Write-Host ""
|
|
if ($HasNvidiaSmi) {
|
|
substep "building llama.cpp with CUDA support..."
|
|
} elseif ($HasROCm -or $script:ROCmGfxArch) {
|
|
# AMD GPU present but in the CPU-only source-build fallback: a HIP source
|
|
# build needs the full HIP SDK + ROCm clang toolchain. AMD GPU acceleration
|
|
# comes from the per-gfx ROCm prebuilt (bundles the runtime, no SDK) -- reaching
|
|
# here means it couldn't be installed. Warn loudly, don't ship a slow CPU build.
|
|
$_amdArch = if ($script:ROCmGfxArch) { $script:ROCmGfxArch } else { "ROCm" }
|
|
substep "[WARN] AMD GPU ($_amdArch) detected, but the GPU-accelerated ROCm" "Yellow"
|
|
substep " llama.cpp prebuilt could not be installed -- falling back to a CPU build." "Yellow"
|
|
substep " The prebuilt is the AMD GPU path (no HIP SDK required). To restore GPU" "Yellow"
|
|
substep " acceleration: re-run the installer (check your network / proxy), or set" "Yellow"
|
|
substep " UNSLOTH_LLAMA_RELEASE_TAG to a tag with a gfx prebuilt for your GPU." "Yellow"
|
|
substep "building llama.cpp (CPU-only fallback)..." "Yellow"
|
|
} else {
|
|
substep "building llama.cpp (CPU-only, no NVIDIA GPU detected)..."
|
|
}
|
|
substep "This typically takes 5-10 minutes on first build."
|
|
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')
|
|
}
|
|
|
|
if (-not $LlamaPr) {
|
|
$ResolvedSourceUrl = $LlamaSource
|
|
if ($env:UNSLOTH_LLAMA_FORCE_COMPILE -eq "1") {
|
|
if ($RequestedLlamaTag -eq "latest") {
|
|
$ResolvedSourceRef = if ($env:UNSLOTH_LLAMA_FORCE_COMPILE_REF) {
|
|
$env:UNSLOTH_LLAMA_FORCE_COMPILE_REF
|
|
} else {
|
|
$DefaultLlamaForceCompileRef
|
|
}
|
|
$ResolvedSourceRefKind = "branch"
|
|
} else {
|
|
$ResolvedSourceRef = $RequestedLlamaTag
|
|
$ResolvedSourceRefKind = "tag"
|
|
}
|
|
} elseif ($RequestedLlamaTag -eq "latest") {
|
|
$resolveTagArgs = @("--resolve-llama-tag", "latest", "--published-repo", "ggml-org/llama.cpp", "--output-format", "json")
|
|
$resolveTagResult = Invoke-LlamaHelper -Arguments $resolveTagArgs
|
|
$resolveTagOutput = $resolveTagResult.Output
|
|
$resolveTagExit = $resolveTagResult.ExitCode
|
|
if ($resolveTagExit -eq 0 -and $resolveTagOutput) {
|
|
try {
|
|
$ResolvedSourceRef = (($resolveTagOutput | Out-String) | ConvertFrom-Json).llama_tag
|
|
} catch {
|
|
$ResolvedSourceRef = ""
|
|
}
|
|
} else {
|
|
$ResolvedSourceRef = ""
|
|
}
|
|
if ([string]::IsNullOrWhiteSpace($ResolvedSourceRef)) {
|
|
$ResolvedSourceRef = "latest"
|
|
}
|
|
$ResolvedSourceRefKind = "tag"
|
|
} else {
|
|
$ResolvedSourceRef = $RequestedLlamaTag
|
|
$ResolvedSourceRefKind = "tag"
|
|
}
|
|
if ([string]::IsNullOrWhiteSpace($ResolvedSourceUrl)) { $ResolvedSourceUrl = $LlamaSource }
|
|
if ([string]::IsNullOrWhiteSpace($ResolvedSourceRef)) { $ResolvedSourceRef = $RequestedLlamaTag }
|
|
}
|
|
|
|
# -- Step A: Clone or pull llama.cpp --
|
|
|
|
$UseConcreteRef = ($ResolvedSourceRef -ne "latest" -and -not [string]::IsNullOrWhiteSpace($ResolvedSourceRef))
|
|
|
|
if (Test-Path -LiteralPath (Join-Path $LlamaCppDir ".git")) {
|
|
# why: in-place git mutation (remote set-url, checkout -B, clean -fdx)
|
|
# rewrites $LlamaCppDir; mirror the prebuilt and temp-dir-swap guards
|
|
# so an unrelated workspace .git tree is never silently overwritten.
|
|
if ($StudioHomeIsCustom) {
|
|
Assert-StudioOwnedOrAbsent -Path $LlamaCppDir -Label "llama.cpp install"
|
|
}
|
|
Write-Host " Syncing llama.cpp to $ResolvedSourceRef..." -ForegroundColor Gray
|
|
# Always sync the remote URL so switching between default/fork sources works
|
|
Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir remote set-url origin "$ResolvedSourceUrl.git" } | Out-Null
|
|
if ($LlamaPr) {
|
|
$gitFetchExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir fetch --depth 1 origin "pull/$LlamaPr/head" }
|
|
if ($gitFetchExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git fetch PR #$LlamaPr"
|
|
} else {
|
|
$gitCheckoutExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir checkout -B "pr-$LlamaPr" FETCH_HEAD }
|
|
if ($gitCheckoutExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git checkout PR #$LlamaPr"
|
|
} else {
|
|
Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir clean -fdx } | Out-Null
|
|
}
|
|
}
|
|
} elseif ($ResolvedSourceRefKind -eq "pull") {
|
|
$gitFetchExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir fetch --depth 1 origin $ResolvedSourceRef }
|
|
if ($gitFetchExit -ne 0) {
|
|
substep "git fetch failed -- using existing source" "Yellow"
|
|
} else {
|
|
$gitCheckoutExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir checkout -B unsloth-llama-build FETCH_HEAD }
|
|
if ($gitCheckoutExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git checkout"
|
|
} else {
|
|
Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir clean -fdx } | Out-Null
|
|
}
|
|
}
|
|
} elseif ($ResolvedSourceRefKind -eq "commit") {
|
|
$gitFetchExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir fetch --depth 1 origin $ResolvedSourceRef }
|
|
if ($gitFetchExit -ne 0) {
|
|
substep "git fetch failed -- using existing source" "Yellow"
|
|
} else {
|
|
$gitCheckoutExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir checkout -B unsloth-llama-build FETCH_HEAD }
|
|
if ($gitCheckoutExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git checkout"
|
|
} else {
|
|
Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir clean -fdx } | Out-Null
|
|
}
|
|
}
|
|
} elseif ($UseConcreteRef) {
|
|
$gitFetchExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir fetch --depth 1 origin $ResolvedSourceRef }
|
|
if ($gitFetchExit -ne 0) {
|
|
substep "git fetch failed -- using existing source" "Yellow"
|
|
} else {
|
|
$gitCheckoutExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir checkout -B unsloth-llama-build FETCH_HEAD }
|
|
if ($gitCheckoutExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git checkout"
|
|
} else {
|
|
Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir clean -fdx } | Out-Null
|
|
}
|
|
}
|
|
} else {
|
|
$gitFetchExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir fetch --depth 1 origin }
|
|
if ($gitFetchExit -ne 0) {
|
|
substep "git fetch failed -- using existing source" "Yellow"
|
|
} else {
|
|
$gitCheckoutExit = Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir checkout -B unsloth-llama-build FETCH_HEAD }
|
|
if ($gitCheckoutExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git checkout"
|
|
} else {
|
|
Invoke-SetupCommand -AlwaysQuiet { git -C $LlamaCppDir clean -fdx } | Out-Null
|
|
}
|
|
}
|
|
}
|
|
# why: in-place git-sync (the temp-dir clone path calls Mark-StudioOwned
|
|
# at swap-time) must mark the existing tree so a subsequent prebuilt
|
|
# update path's Assert-StudioOwnedOrAbsent does not exit on the same root.
|
|
if ($BuildOk -and $StudioHomeIsCustom) {
|
|
Mark-StudioOwned -Path $LlamaCppDir
|
|
}
|
|
} else {
|
|
Write-Host " Cloning llama.cpp @ $ResolvedSourceRef..." -ForegroundColor Gray
|
|
$buildTmp = "$LlamaCppDir.build.$PID"
|
|
$null = [System.IO.Directory]::CreateDirectory((Split-Path -LiteralPath $LlamaCppDir))
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
if ($LlamaPr) {
|
|
$cloneExit = Invoke-SetupCommand -AlwaysQuiet { git clone --depth 1 "$LlamaSource.git" $buildTmp }
|
|
if ($cloneExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git clone"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
if ($BuildOk) {
|
|
$fetchExit = Invoke-SetupCommand -AlwaysQuiet { git -C $buildTmp fetch --depth 1 origin "pull/$LlamaPr/head:pr-$LlamaPr" }
|
|
if ($fetchExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git fetch PR #$LlamaPr"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
}
|
|
if ($BuildOk) {
|
|
$checkoutExit = Invoke-SetupCommand -AlwaysQuiet { git -C $buildTmp checkout "pr-$LlamaPr" }
|
|
if ($checkoutExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git checkout PR #$LlamaPr"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
}
|
|
} elseif ($ResolvedSourceRefKind -eq "pull") {
|
|
$cloneExit = Invoke-SetupCommand -AlwaysQuiet { git clone --depth 1 "$ResolvedSourceUrl.git" $buildTmp }
|
|
if ($cloneExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git clone"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
if ($BuildOk) {
|
|
$fetchExit = Invoke-SetupCommand -AlwaysQuiet { git -C $buildTmp fetch --depth 1 origin $ResolvedSourceRef }
|
|
if ($fetchExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git fetch source PR ref"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
}
|
|
if ($BuildOk) {
|
|
$checkoutExit = Invoke-SetupCommand -AlwaysQuiet { git -C $buildTmp checkout -B unsloth-llama-build FETCH_HEAD }
|
|
if ($checkoutExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git checkout source PR ref"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
}
|
|
} elseif ($ResolvedSourceRefKind -eq "commit") {
|
|
$cloneExit = Invoke-SetupCommand -AlwaysQuiet { git clone --depth 1 "$ResolvedSourceUrl.git" $buildTmp }
|
|
if ($cloneExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git clone"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
if ($BuildOk) {
|
|
$fetchExit = Invoke-SetupCommand -AlwaysQuiet { git -C $buildTmp fetch --depth 1 origin $ResolvedSourceRef }
|
|
if ($fetchExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git fetch source commit"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
}
|
|
if ($BuildOk) {
|
|
$checkoutExit = Invoke-SetupCommand -AlwaysQuiet { git -C $buildTmp checkout -B unsloth-llama-build FETCH_HEAD }
|
|
if ($checkoutExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git checkout source commit"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
}
|
|
} else {
|
|
$cloneArgs = @("clone", "--depth", "1")
|
|
if ($UseConcreteRef) {
|
|
$cloneArgs += @("--branch", $ResolvedSourceRef)
|
|
}
|
|
$cloneArgs += @("$ResolvedSourceUrl.git", $buildTmp)
|
|
$cloneExit = Invoke-SetupCommand -AlwaysQuiet { git @cloneArgs }
|
|
if ($cloneExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "git clone"
|
|
if (Test-Path -LiteralPath $buildTmp) { Remove-Item -LiteralPath $buildTmp -Recurse -Force }
|
|
}
|
|
}
|
|
# Use temp dir for build; swap into $LlamaCppDir only after build succeeds
|
|
if ($BuildOk) {
|
|
$LlamaCppDir = $buildTmp
|
|
$BuildDir = Join-Path $LlamaCppDir "build"
|
|
}
|
|
}
|
|
|
|
# -- Step B: cmake configure --
|
|
|
|
if ($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) {
|
|
# UNSLOTH_LLAMA_CUDA_ARCHS (e.g. "120" or "89;86") forces the build
|
|
# arch and wins over detection, matching setup.sh.
|
|
$CudaArchOverride = if ($env:UNSLOTH_LLAMA_CUDA_ARCHS) { ($env:UNSLOTH_LLAMA_CUDA_ARCHS -replace '\s', '') } else { '' }
|
|
if ((-not $CudaArch) -and (-not $CudaArchOverride)) {
|
|
# No detectable compute capability (#5854): -DGGML_CUDA=ON with no
|
|
# arch builds a PTX-only binary, so build CPU instead. Mirrors the
|
|
# Linux fix; set UNSLOTH_LLAMA_CUDA_ARCHS=120 to force a CUDA build.
|
|
substep "could not detect a CUDA compute capability; building CPU llama.cpp instead of a PTX-only binary (set UNSLOTH_LLAMA_CUDA_ARCHS=120 to force a CUDA build)." "Yellow"
|
|
$CmakeArgs += '-DGGML_CUDA=OFF'
|
|
} else {
|
|
$CmakeArgs += '-DGGML_CUDA=ON'
|
|
# Accept a host MSVC newer than nvcc's whitelist; a fresh toolkit
|
|
# (e.g. CUDA 13.3) otherwise aborts with "#error -- unsupported
|
|
# Microsoft Visual Studio version!". Mirrors the Linux fix. Via env
|
|
# (covers the configure probe + build), after Refresh-Environment, idempotent.
|
|
$nvccAllowFlag = '-allow-unsupported-compiler'
|
|
if ([string]::IsNullOrEmpty($env:NVCC_PREPEND_FLAGS)) {
|
|
$env:NVCC_PREPEND_FLAGS = $nvccAllowFlag
|
|
} elseif ($env:NVCC_PREPEND_FLAGS -notlike "*$nvccAllowFlag*") {
|
|
$env:NVCC_PREPEND_FLAGS = "$($env:NVCC_PREPEND_FLAGS) $nvccAllowFlag"
|
|
}
|
|
substep "NVCC_PREPEND_FLAGS = $env:NVCC_PREPEND_FLAGS"
|
|
$CmakeArgs += "-DCUDAToolkit_ROOT=$CudaToolkitRoot"
|
|
$CmakeArgs += "-DCUDA_TOOLKIT_ROOT_DIR=$CudaToolkitRoot"
|
|
$CmakeArgs += "-DCMAKE_CUDA_COMPILER=$NvccPath"
|
|
if ($CudaArchOverride) {
|
|
# Forced arch wins verbatim (no nvcc validation), matching setup.sh.
|
|
$CmakeArgs += "-DCMAKE_CUDA_ARCHITECTURES=$CudaArchOverride"
|
|
} elseif ($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"
|
|
substep "GPU is sm_$CudaArch but nvcc only supports up to sm_$maxArch" "Yellow"
|
|
substep "Building with sm_$maxArch (PTX will JIT for your GPU at runtime)" "Yellow"
|
|
}
|
|
# else: omit flag entirely, let cmake pick defaults
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
$CmakeArgs += '-DGGML_CUDA=OFF'
|
|
}
|
|
|
|
$cmakeOutput = cmake @CmakeArgs 2>&1 | Out-String
|
|
$cmakeConfigureExit = $LASTEXITCODE
|
|
if ($cmakeConfigureExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "cmake configure"
|
|
Write-LlamaFailureLog -Output $cmakeOutput
|
|
if ($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
|
|
$hintCustomizations = if ($VsInstallPath) { Get-VcBuildCustomizationsDir -VsInstallPath $VsInstallPath -Generator $CmakeGenerator } else { "<VS_PATH>\MSBuild\Microsoft\VC\v170\BuildCustomizations" }
|
|
Write-Host " $hintCustomizations" -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
|
|
$cmakeBuildServerExit = $LASTEXITCODE
|
|
if ($cmakeBuildServerExit -ne 0) {
|
|
$BuildOk = $false
|
|
$FailedStep = "cmake build (llama-server)"
|
|
Write-LlamaFailureLog -Output $output
|
|
}
|
|
}
|
|
|
|
# -- Step D: Build llama-quantize (optional, best-effort) --
|
|
if ($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
|
|
$cmakeBuildQuantizeExit = $LASTEXITCODE
|
|
if ($cmakeBuildQuantizeExit -ne 0) {
|
|
substep "llama-quantize build failed (GGUF export may be unavailable)" "Yellow"
|
|
Write-LlamaFailureLog -Output $output
|
|
}
|
|
}
|
|
|
|
# -- Step E: Build the DiffusionGemma visual server (optional, best-effort) --
|
|
# An example target present on llama.cpp PR #24423; lets Studio serve
|
|
# DiffusionGemma GGUFs without DG_VISUAL_BIN. No-op when not configured.
|
|
if ($BuildOk) {
|
|
$null = cmake --build $BuildDir --config Release --target llama-diffusion-gemma-visual-server -j $NumCpu 2>&1 | Out-String
|
|
}
|
|
|
|
# Swap temp build dir into final location (only if we built in a temp dir)
|
|
if ($BuildOk -and $LlamaCppDir -ne $OriginalLlamaCppDir) {
|
|
Assert-StudioOwnedOrAbsent -Path $OriginalLlamaCppDir -Label "llama.cpp install"
|
|
if (Test-Path -LiteralPath $OriginalLlamaCppDir) { Remove-Item -LiteralPath $OriginalLlamaCppDir -Recurse -Force }
|
|
Move-Item -LiteralPath $LlamaCppDir -Destination $OriginalLlamaCppDir
|
|
$LlamaCppDir = $OriginalLlamaCppDir
|
|
$BuildDir = Join-Path $LlamaCppDir "build"
|
|
$LlamaServerBin = Join-Path $BuildDir "bin\Release\llama-server.exe"
|
|
Mark-StudioOwned -Path $LlamaCppDir
|
|
} elseif (-not $BuildOk -and $LlamaCppDir -ne $OriginalLlamaCppDir) {
|
|
# Build failed -- clean up temp dir, preserve existing install
|
|
if (Test-Path -LiteralPath $LlamaCppDir) { Remove-Item -LiteralPath $LlamaCppDir -Recurse -Force }
|
|
$LlamaCppDir = $OriginalLlamaCppDir
|
|
$BuildDir = Join-Path $LlamaCppDir "build"
|
|
$LlamaServerBin = Join-Path $BuildDir "bin\Release\llama-server.exe"
|
|
}
|
|
|
|
# Restore ErrorActionPreference
|
|
$ErrorActionPreference = $prevEAP
|
|
|
|
# Stop timer
|
|
$totalSw.Stop()
|
|
$totalMin = [math]::Floor($totalSw.Elapsed.TotalMinutes)
|
|
$totalSec = [math]::Round($totalSw.Elapsed.TotalSeconds % 60, 1)
|
|
|
|
# -- Summary --
|
|
if ($BuildOk -and (Test-Path -LiteralPath $LlamaServerBin)) {
|
|
step "llama.cpp" "built"
|
|
$QuantizeBin = Join-Path $BuildDir "bin\Release\llama-quantize.exe"
|
|
if (Test-Path -LiteralPath $QuantizeBin) {
|
|
step "llama-quantize" "built"
|
|
}
|
|
step "build time" "${totalMin}m ${totalSec}s" "DarkGray"
|
|
} else {
|
|
$altBin = Join-Path $BuildDir "bin\llama-server.exe"
|
|
if ($BuildOk -and (Test-Path -LiteralPath $altBin)) {
|
|
step "llama.cpp" "built"
|
|
step "build time" "${totalMin}m ${totalSec}s" "DarkGray"
|
|
} else {
|
|
step "llama.cpp" "build failed at: $FailedStep (${totalMin}m ${totalSec}s); continuing" "Yellow"
|
|
substep "To retry: delete $LlamaCppDir and re-run setup." "Yellow"
|
|
$script:LlamaCppDegraded = $true
|
|
}
|
|
}
|
|
}
|
|
|
|
# ─────────────────────────────────────────────
|
|
# Footer
|
|
# ─────────────────────────────────────────────
|
|
$DoneLabel = if ($env:SKIP_STUDIO_BASE -eq "1") { "Unsloth Studio Setup Complete" } else { "Unsloth Studio Updated" }
|
|
if ($script:StudioVtOk -and -not $env:NO_COLOR) {
|
|
Write-Host (" {0}{1}{2}" -f (Get-StudioAnsi Dim), $Rule, (Get-StudioAnsi Reset))
|
|
if ($script:LlamaCppDegraded) {
|
|
Write-Host (" " + (Get-StudioAnsi Warn) + "$DoneLabel (limited: llama.cpp unavailable)" + (Get-StudioAnsi Reset))
|
|
} else {
|
|
Write-Host (" " + (Get-StudioAnsi Title) + $DoneLabel + (Get-StudioAnsi Reset))
|
|
}
|
|
Write-Host (" {0}{1}{2}" -f (Get-StudioAnsi Dim), $Rule, (Get-StudioAnsi Reset))
|
|
} else {
|
|
Write-Host " $Rule" -ForegroundColor DarkGray
|
|
if ($script:LlamaCppDegraded) {
|
|
Write-Host " $DoneLabel (limited: llama.cpp unavailable)" -ForegroundColor Yellow
|
|
} else {
|
|
Write-Host " $DoneLabel" -ForegroundColor Green
|
|
}
|
|
Write-Host " $Rule" -ForegroundColor DarkGray
|
|
}
|
|
step "launch" "unsloth studio -H 0.0.0.0 -p 8888"
|
|
Write-Host ""
|
|
|
|
# Match studio/setup.sh: exit non-zero for degraded llama.cpp when called
|
|
# from install.ps1 (SKIP_STUDIO_BASE=1) so the installer can detect the
|
|
# failure. Direct 'unsloth studio update' does not set SKIP_STUDIO_BASE,
|
|
# so it keeps degraded installs successful.
|
|
if ($script:LlamaCppDegraded -and $env:SKIP_STUDIO_BASE -eq "1") {
|
|
exit 1
|
|
}
|