unsloth/scripts/uninstall.ps1
2026-06-12 08:25:40 +00:00

517 lines
26 KiB
PowerShell

# SPDX-License-Identifier: AGPL-3.0-only
# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0
#
# Unsloth Studio uninstaller for Windows PowerShell.
# Stops running servers and removes install dir, launcher data, CLI shim,
# desktop and Start Menu shortcuts, the user PATH entry, and the PathBackup
# registry key. Honors custom roots set via UNSLOTH_STUDIO_HOME / STUDIO_HOME
# at install time (read back from share\studio.conf).
#
# Usage: irm https://raw.githubusercontent.com/unslothai/unsloth/main/scripts/uninstall.ps1 | iex
# Local: Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass; .\scripts\uninstall.ps1
function Uninstall-UnslothStudio {
$ErrorActionPreference = "Continue"
function _Step { param([string]$Msg) Write-Host $Msg }
function _Substep { param([string]$Msg, [string]$Color = "Gray") Write-Host " $Msg" -ForegroundColor $Color }
# Remove a file/dir/symlink if present. Idempotent; retries since a just-killed
# process can briefly hold a handle (Windows refuses the delete until released).
function _RemovePath {
param([string]$Path)
if ([string]::IsNullOrWhiteSpace($Path)) { return }
if (-not (Test-Path -LiteralPath $Path)) { return }
for ($attempt = 1; $attempt -le 3; $attempt++) {
try {
Remove-Item -LiteralPath $Path -Recurse -Force -ErrorAction Stop
_Substep "removed: $Path" "Green"
return
} catch {
if ($attempt -lt 3) { Start-Sleep -Milliseconds 700; continue }
_Substep "could not remove: $Path ($($_.Exception.Message))" "Yellow"
}
}
}
# A path is a Studio-owned root iff one of install.ps1's sentinels exists:
# <root>\share\studio.conf, <root>\unsloth_studio\.unsloth-studio-owned,
# or <root>\bin\unsloth.exe.
function _IsStudioRoot {
param([string]$Path)
if ([string]::IsNullOrWhiteSpace($Path)) { return $false }
if (Test-Path -LiteralPath (Join-Path $Path "share\studio.conf") -PathType Leaf) { return $true }
if (Test-Path -LiteralPath (Join-Path $Path "unsloth_studio\.unsloth-studio-owned") -PathType Leaf) { return $true }
if (Test-Path -LiteralPath (Join-Path $Path "bin\unsloth.exe") -PathType Leaf) { return $true }
return $false
}
# Hard deny list. Refuse to recursively delete drive roots, USERPROFILE
# itself, parent of USERPROFILE, or system directories.
function _IsUnsafeRoot {
param([string]$Path)
if ([string]::IsNullOrWhiteSpace($Path)) { return $true }
$norm = $null
try { $norm = [System.IO.Path]::GetFullPath($Path).TrimEnd('\','/') } catch { return $true }
if ([string]::IsNullOrWhiteSpace($norm)) { return $true }
# Drive root, e.g. C:\
if ($norm -match '^[A-Za-z]:[\\/]?$') { return $true }
$userProfile = $env:USERPROFILE
if ($userProfile) {
$userProfile = $userProfile.TrimEnd('\','/')
if ($norm -ieq $userProfile) { return $true }
try {
$parent = Split-Path -LiteralPath $userProfile -Parent
if ($parent -and ($norm -ieq $parent.TrimEnd('\','/'))) { return $true }
} catch { }
}
$systemRoots = @(
$env:SystemRoot, $env:windir, $env:ProgramFiles, ${env:ProgramFiles(x86)},
$env:ProgramData, $env:APPDATA, $env:LOCALAPPDATA
)
foreach ($s in $systemRoots) {
if (-not [string]::IsNullOrWhiteSpace($s)) {
$s2 = $s.TrimEnd('\','/')
if ($norm -ieq $s2) { return $true }
}
}
return $false
}
# Parse UNSLOTH_EXE='<path>' out of a share\studio.conf and return the
# implied install root (three dirnames up from the venv exe).
function _RootFromConf {
param([string]$ConfFile)
if (-not (Test-Path -LiteralPath $ConfFile -PathType Leaf)) { return $null }
$line = Get-Content -LiteralPath $ConfFile -ErrorAction SilentlyContinue |
Where-Object { $_ -match "^UNSLOTH_EXE\s*=" } | Select-Object -First 1
if (-not $line) { return $null }
# Tolerate ' value ' single-quoted with '' -> ' apostrophe escape.
if ($line -match "^UNSLOTH_EXE\s*=\s*'(.*)'\s*$") {
$exe = $Matches[1] -replace "''", "'"
try {
$bin = Split-Path -LiteralPath $exe -Parent
$studio = Split-Path -LiteralPath $bin -Parent
$root = Split-Path -LiteralPath $studio -Parent
if ($root) { return $root }
} catch { }
}
return $null
}
# Expand a leading ~ or ~/ ~\ to $env:USERPROFILE so env-mode roots
# written with the tilde shape install.ps1 supports (lines 152-154) are
# found here too.
function _ExpandTilde {
param([string]$Path)
if ([string]::IsNullOrWhiteSpace($Path)) { return $Path }
$p = $Path.Trim()
if ($p -eq '~') { return $env:USERPROFILE }
if ($p.StartsWith('~/') -or $p.StartsWith('~\')) {
if ($env:USERPROFILE) {
return (Join-Path $env:USERPROFILE $p.Substring(2).TrimStart('/','\'))
}
}
return $p
}
# Discover non-default Studio roots from env vars + studio.conf files.
# Mirrors install.ps1's precedence: UNSLOTH_STUDIO_HOME wins, STUDIO_HOME
# is ignored when both are set, so uninstalling install A doesn't also
# delete install B if the user has a stale STUDIO_HOME pointing at B.
function _CustomStudioRoots {
$seen = [System.Collections.Generic.HashSet[string]]::new([System.StringComparer]::OrdinalIgnoreCase)
$defaultRoot = $null
if ($env:USERPROFILE) {
$defaultRoot = (Join-Path $env:USERPROFILE ".unsloth\studio")
}
$emit = {
param($Path)
if ([string]::IsNullOrWhiteSpace($Path)) { return }
$expanded = _ExpandTilde $Path
$norm = $null
try { $norm = [System.IO.Path]::GetFullPath($expanded).TrimEnd('\','/') } catch { return }
if (-not $norm) { return }
if ($defaultRoot -and ($norm -ieq $defaultRoot.TrimEnd('\','/'))) { return }
if ($seen.Add($norm)) { Write-Output $norm }
}
$envRoot = $null
if ($env:UNSLOTH_STUDIO_HOME) {
$envRoot = $env:UNSLOTH_STUDIO_HOME
} elseif ($env:STUDIO_HOME) {
$envRoot = $env:STUDIO_HOME
}
if ($envRoot) {
$expandedEnv = _ExpandTilde $envRoot
& $emit $expandedEnv
$confRoot = _RootFromConf (Join-Path $expandedEnv "share\studio.conf")
if ($confRoot) { & $emit $confRoot }
}
# Default-mode conf at LOCALAPPDATA\Unsloth Studio.
if ($env:LOCALAPPDATA) {
$confRoot = _RootFromConf (Join-Path $env:LOCALAPPDATA "Unsloth Studio\studio.conf")
if ($confRoot) { & $emit $confRoot }
}
}
# Return $true iff the PID's image path lives under one of $KnownRoots.
# Prevents killing an unrelated process that happens to listen on a stale
# Studio port.
function _PidUnderKnownRoot {
param([int]$Pid_, [string[]]$KnownRoots)
if (-not $KnownRoots -or $KnownRoots.Count -eq 0) { return $false }
try {
$proc = Get-CimInstance Win32_Process -Filter "ProcessId=$Pid_" -ErrorAction SilentlyContinue
if (-not $proc) { return $false }
$exe = $proc.ExecutablePath
if (-not $exe) { return $false }
foreach ($r in $KnownRoots) {
if ($r -and ($exe -ilike "$r\*")) { return $true }
}
} catch { }
return $false
}
# Stop a Studio backend whose port is recorded in <DataDir>\studio.port.
# Only kills if the listening PID's exe path is under a known Studio root.
function _StopByPortFile {
param([string]$PortFile, [string[]]$KnownRoots)
if (-not (Test-Path -LiteralPath $PortFile -PathType Leaf)) { return }
$port = Get-Content -LiteralPath $PortFile -ErrorAction SilentlyContinue | Select-Object -First 1
if ($port) { $port = $port.Trim() }
if (-not ($port -match '^[0-9]+$')) {
Remove-Item -LiteralPath $PortFile -Force -ErrorAction SilentlyContinue
return
}
try {
$conns = Get-NetTCPConnection -State Listen -LocalPort ([int]$port) -ErrorAction SilentlyContinue
foreach ($c in $conns) {
if (-not (_PidUnderKnownRoot -Pid_ ([int]$c.OwningProcess) -KnownRoots $KnownRoots)) { continue }
try {
Stop-Process -Id $c.OwningProcess -Force -ErrorAction SilentlyContinue
} catch { }
}
} catch {
# netstat fallback for older PowerShell. Require LISTENING state so
# we never kill a process whose remote endpoint just happens to be
# the cached port (browser -> :443 etc.).
try {
$lines = & netstat.exe -ano 2>$null |
Select-String -Pattern "LISTENING" |
Select-String -Pattern ":$port\s"
foreach ($l in $lines) {
$parts = ($l.ToString() -split '\s+') | Where-Object { $_ }
$pid_ = $parts[-1]
if ($pid_ -match '^\d+$') {
if (-not (_PidUnderKnownRoot -Pid_ ([int]$pid_) -KnownRoots $KnownRoots)) { continue }
try { Stop-Process -Id ([int]$pid_) -Force -ErrorAction SilentlyContinue } catch { }
}
}
} catch { }
}
Remove-Item -LiteralPath $PortFile -Force -ErrorAction SilentlyContinue
}
# Stop processes whose ExecutablePath lives under an unsloth_studio venv.
# Anchoring on the venv path avoids matching unrelated python.exe / studio.exe.
function _StopStudioProcesses {
param([string[]]$KnownRoots)
try {
$procs = Get-CimInstance Win32_Process -ErrorAction SilentlyContinue |
Where-Object {
$_.ExecutablePath -and ($_.ExecutablePath -match '\\unsloth_studio\\.*\\(unsloth|python|studio)\.exe$') -and
$_.CommandLine -and ($_.CommandLine -match 'studio')
}
foreach ($p in $procs) {
# Optional scope: only kill if the exe is under a known root.
if ($KnownRoots) {
$match = $false
foreach ($r in $KnownRoots) {
if ($p.ExecutablePath -and ($p.ExecutablePath -ilike "$r\*")) { $match = $true; break }
}
if (-not $match) { continue }
}
try {
Stop-Process -Id $p.ProcessId -Force -ErrorAction SilentlyContinue
} catch { }
}
} catch { }
}
# Stop processes that would block deleting the paths we remove. Unlike
# _StopStudioProcesses (venv exe only), this also catches llama-server/llama-cli,
# the unsloth.exe shim, and orphaned mp workers under SYSTEM python holding a
# venv DLL (an open DLL handle blocks the dir delete) -- found by scanning each
# candidate's loaded modules, not just its image path.
function _StopProcessesLockingRoots {
param([string[]]$Roots)
$clean = @($Roots | Where-Object { $_ } | ForEach-Object { $_.TrimEnd('\','/') })
if ($clean.Count -eq 0) { return }
$underRoot = {
param($p)
if (-not $p) { return $false }
foreach ($r in $clean) { if ($p -ieq $r -or $p -ilike "$r\*") { return $true } }
return $false
}
# 1. Image path under a target root (venv python, shim, llama-server).
try {
foreach ($proc in (Get-CimInstance Win32_Process -ErrorAction SilentlyContinue)) {
if ((& $underRoot $proc.ExecutablePath)) {
try { Stop-Process -Id $proc.ProcessId -Force -ErrorAction SilentlyContinue } catch { }
}
}
} catch { }
# 2. A loaded module under a target root (orphaned mp-fork python holding a
# venv DLL). Scoped to names that load our DLLs to keep the scan fast.
try {
$cands = Get-Process -Name python, pythonw, unsloth, llama-server, llama-cli -ErrorAction SilentlyContinue
foreach ($proc in $cands) {
$hit = $false
try {
foreach ($m in $proc.Modules) { if ((& $underRoot $m.FileName)) { $hit = $true; break } }
} catch { } # access denied enumerating modules -> skip
if ($hit) { try { Stop-Process -Id $proc.Id -Force -ErrorAction SilentlyContinue } catch { } }
}
} catch { }
}
# Default install root + default data dir.
$defaultStudioHome = if ($env:USERPROFILE) { Join-Path $env:USERPROFILE ".unsloth\studio" } else { $null }
$defaultDataDir = if ($env:LOCALAPPDATA) { Join-Path $env:LOCALAPPDATA "Unsloth Studio" } else { $null }
# Default-mode ~/.unsloth holds a SHARED llama.cpp build + .cache that are
# siblings of studio (not under it), so deleting <studio> misses them -- handle
# explicitly. No-op in env/custom mode (nested under the custom root, removed
# with it). A user-set UNSLOTH_LLAMA_CPP_PATH is left alone.
$defaultUnslothHome = if ($env:USERPROFILE) { Join-Path $env:USERPROFILE ".unsloth" } else { $null }
$defaultLlamaCpp = if ($defaultUnslothHome) { Join-Path $defaultUnslothHome "llama.cpp" } else { $null }
$defaultCache = if ($defaultUnslothHome) { Join-Path $defaultUnslothHome ".cache" } else { $null }
# llama.cpp atomic-install staging root (install_llama_prebuilt.py .staging,
# sibling of the install dir). Usually pruned after activate, but an interrupted
# build can leave a "<name>.staging-XXXX" tree; removing it lets the empty-dir
# cleanup of ~/.unsloth below succeed. No-op in env/custom mode and when absent.
$defaultStaging = if ($defaultUnslothHome) { Join-Path $defaultUnslothHome ".staging" } else { $null }
# Build known-root list FIRST so the port-file kill can verify ownership.
$customRoots = @(_CustomStudioRoots)
$knownRoots = @()
if ($defaultStudioHome) { $knownRoots += $defaultStudioHome }
$knownRoots += $customRoots
# ── Stop running servers ──
_Step "Stopping any running Unsloth Studio servers..."
if ($defaultDataDir) {
_StopByPortFile -PortFile (Join-Path $defaultDataDir "studio.port") -KnownRoots $knownRoots
}
foreach ($r in $customRoots) {
_StopByPortFile -PortFile (Join-Path $r "share\studio.port") -KnownRoots $knownRoots
}
_StopStudioProcesses -KnownRoots $knownRoots
# Also stop anything holding a handle on the exact paths we delete (llama-server,
# the CLI shim, an mp-fork python with a venv DLL) so the dir delete isn't refused.
_StopProcessesLockingRoots -Roots (@($knownRoots) + @($defaultDataDir, $defaultLlamaCpp, $defaultCache))
# ── Remove custom-root install trees ──
_Step "Removing data and install directories..."
foreach ($r in $customRoots) {
if (_IsUnsafeRoot $r) {
_Substep "refusing to remove unsafe path: $r" "Yellow"
continue
}
if (-not (_IsStudioRoot $r)) {
_Substep "refusing to remove non-Studio path: $r" "Yellow"
continue
}
_RemovePath $r
}
# Default install dir (always at %USERPROFILE%\.unsloth\studio when present).
if ($defaultStudioHome) { _RemovePath $defaultStudioHome }
# Default data dir.
if ($defaultDataDir) { _RemovePath $defaultDataDir }
# Default-mode shared llama.cpp build + cache (siblings of studio under
# ~/.unsloth). No-op in env/custom mode and when absent.
if ($defaultLlamaCpp) { _RemovePath $defaultLlamaCpp }
if ($defaultCache) { _RemovePath $defaultCache }
if ($defaultStaging) { _RemovePath $defaultStaging }
# Drop ~/.unsloth itself, but ONLY if now empty -- never nuke unrelated content.
if ($defaultUnslothHome -and (Test-Path -LiteralPath $defaultUnslothHome) -and
-not (Get-ChildItem -LiteralPath $defaultUnslothHome -Force -ErrorAction SilentlyContinue)) {
_RemovePath $defaultUnslothHome
}
# ── Remove desktop and Start Menu shortcuts ──
# Canonical name is "Unsloth Studio.lnk"; also sweep legacy distro-suffixed names
# ("Unsloth Studio (WSL - <distro>).lnk") left by pre-release dev builds.
_Step "Removing desktop and Start Menu shortcuts..."
$shortcutDirs = @()
try { $d = [Environment]::GetFolderPath("Desktop"); if ($d) { $shortcutDirs += $d } } catch { }
if ($env:APPDATA) { $shortcutDirs += (Join-Path $env:APPDATA "Microsoft\Windows\Start Menu\Programs") }
foreach ($dir in $shortcutDirs) {
if (-not (Test-Path -LiteralPath $dir)) { continue }
_RemovePath (Join-Path $dir "Unsloth Studio.lnk")
Get-ChildItem -LiteralPath $dir -Filter "Unsloth Studio (*.lnk" -ErrorAction SilentlyContinue |
ForEach-Object { _RemovePath $_.FullName }
}
# Invalidate the Win11 Start Menu tile cache so the removed shortcut's tile
# disappears promptly instead of lingering stale (mirrors install.ps1's
# New-StudioShortcuts). Preserves start2.bin (the pin layout).
try {
$smehTemp = Join-Path $env:LOCALAPPDATA "Packages\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\TempState"
if (Test-Path -LiteralPath $smehTemp) {
Get-ChildItem -LiteralPath $smehTemp -Filter "TileCache_*" -ErrorAction SilentlyContinue |
Remove-Item -Force -ErrorAction SilentlyContinue
Remove-Item -LiteralPath (Join-Path $smehTemp "StartUnifiedTileModelCache.dat") -Force -ErrorAction SilentlyContinue
Stop-Process -Name StartMenuExperienceHost -Force -ErrorAction SilentlyContinue
}
} catch { }
# ── Clean user PATH and registry backup ──
_Step "Cleaning user PATH and registry..."
try {
$regKey = [Microsoft.Win32.Registry]::CurrentUser.OpenSubKey('Environment', $true)
if ($regKey) {
try {
$rawPath = $regKey.GetValue('Path', '', [Microsoft.Win32.RegistryValueOptions]::DoNotExpandEnvironmentNames)
if ($rawPath) {
$entries = $rawPath -split ';'
$kept = New-Object System.Collections.ArrayList
$removedAny = $false
# Only remove PATH entries that live inside a Studio root we
# actually own (default or env-mode). A literal substring
# match on `unsloth_studio` would clobber unrelated user
# virtualenvs that happen to share the name.
foreach ($e in $entries) {
if ([string]::IsNullOrWhiteSpace($e)) { continue }
$expanded = [Environment]::ExpandEnvironmentVariables($e).TrimEnd('\','/')
$isStudio = $false
foreach ($r in $knownRoots) {
if (-not $r) { continue }
$rNorm = $r.TrimEnd('\','/')
if ($expanded -ieq $rNorm -or $expanded -ilike "$rNorm\*") {
$isStudio = $true; break
}
}
if ($isStudio) {
_Substep "removed PATH entry: $e" "Green"
$removedAny = $true
continue
}
[void]$kept.Add($e)
}
if ($removedAny) {
$newPath = ($kept -join ';')
$regKey.SetValue('Path', $newPath, [Microsoft.Win32.RegistryValueKind]::ExpandString)
try {
$d = "UnslothPathRefresh_" + ([guid]::NewGuid().ToString('N').Substring(0, 8))
[Environment]::SetEnvironmentVariable($d, '1', 'User')
[Environment]::SetEnvironmentVariable($d, [NullString]::Value, 'User')
} catch { }
}
}
} finally {
$regKey.Close()
}
}
} catch {
_Substep "could not update user PATH: $($_.Exception.Message)" "Yellow"
}
# Remove HKCU\Software\Unsloth (PathBackup lives here; install.ps1 owns it).
try {
Remove-Item -LiteralPath 'HKCU:\Software\Unsloth' -Recurse -Force -ErrorAction SilentlyContinue
} catch { }
# ── Windows-on-Arm WSL-fallback artifacts ──
# The ARM64+NVIDIA fallback puts Studio in WSL plus a native shim + launcher under
# %LOCALAPPDATA%\Unsloth (not "Unsloth Studio") with a PATH entry -- none caught above.
_Step "Removing WSL-fallback artifacts (shim, launcher, PATH entry, WSL install)..."
$unslothDir = if ($env:LOCALAPPDATA) { Join-Path $env:LOCALAPPDATA "Unsloth" } else { $null }
# wsl-distro.txt records a custom UNSLOTH_WSL_DISTRO install so it's cleanable without the env
# var set; read it BEFORE the directory is removed below.
$_recordedDistro = $null
if ($unslothDir) {
try {
$_distroFile = Join-Path $unslothDir "wsl-distro.txt"
if (Test-Path -LiteralPath $_distroFile) {
$_recordedDistro = (Get-Content -LiteralPath $_distroFile -ErrorAction SilentlyContinue | Select-Object -First 1)
if ($_recordedDistro) { $_recordedDistro = $_recordedDistro.Trim() }
}
} catch { }
}
if ($unslothDir) {
$shimDir = (Join-Path $unslothDir "bin").TrimEnd('\', '/')
try {
$rk = [Microsoft.Win32.Registry]::CurrentUser.OpenSubKey('Environment', $true)
if ($rk) {
try {
$rp = $rk.GetValue('Path', '', [Microsoft.Win32.RegistryValueOptions]::DoNotExpandEnvironmentNames)
if ($rp) {
$kept = @(); $removed = $false
foreach ($e in ($rp -split ';')) {
if ([string]::IsNullOrWhiteSpace($e)) { continue }
if (([Environment]::ExpandEnvironmentVariables($e).TrimEnd('\', '/')) -ieq $shimDir) { $removed = $true; _Substep "removed PATH entry: $e" "Green"; continue }
$kept += $e
}
if ($removed) { $rk.SetValue('Path', ($kept -join ';'), [Microsoft.Win32.RegistryValueKind]::ExpandString) }
}
} finally { $rk.Close() }
}
} catch { }
_RemovePath $unslothDir
}
# The WoA shortcut icon lives under the user profile (icon broker can't read AppData\Local).
if ($env:USERPROFILE) { _RemovePath (Join-Path $env:USERPROFILE ".unsloth\unsloth.ico") }
# Remove the Studio install inside each WSL distro (the real GPU install + any CUDA llama.cpp build).
if (Get-Command wsl.exe -ErrorAction SilentlyContinue) {
try {
# Probe candidates by exit code ('' = default distro) since `wsl --list` emits UTF-16 PS
# mis-parses. rm runs FIRST (the kills could SIGKILL this shell) and drops the dangling
# /root/.local/bin/unsloth symlink. Scope STRICTLY to /root (the fallback's install dir);
# /home/*/.unsloth may be another user's. The 8888 kill is gated on an Unsloth install
# existing (checked BEFORE rm deletes the marker) so an unrelated listener survives. pkill
# matches argv containing /root/.unsloth/ (not bare names that would hit a user's own
# llama-server); the backslash + [h]-bracket in '/root/\.unslot[h]/' keep it from matching
# this command's own argv.
$_clean = '_had=0; if [ -d /root/.unsloth ] || [ -L /root/.local/bin/unsloth ]; then _had=1; fi; rm -rf /root/.unsloth /root/llama-cuda /root/provision_llama_cuda.sh /root/llama_cuda_build.log 2>/dev/null; rm -f /root/.local/bin/unsloth 2>/dev/null; if [ $_had -eq 1 ]; then fuser -k 8888/tcp 2>/dev/null; fi; pkill -9 -f ''/root/\.unslot[h]/'' 2>/dev/null; true'
# Clean only distros with evidence of a fallback install: the wsl-distro.txt marker or an
# explicit UNSLOTH_WSL_DISTRO. The broad candidate probe is only for legacy marker-less
# installs (ARM64 only); on x86 it would delete distros this installer never touched
# (e.g. a ROCm-on-WSL Studio under /root).
$_cands = @()
if ($env:UNSLOTH_WSL_DISTRO) { $_cands += $env:UNSLOTH_WSL_DISTRO }
if ($_recordedDistro) { $_cands += $_recordedDistro }
if ((-not $_cands) -and ($env:PROCESSOR_ARCHITECTURE -eq 'ARM64')) {
$_cands = @('', 'Ubuntu', 'Ubuntu-24.04', 'Ubuntu-22.04', 'Debian')
}
$_done = @{}
foreach ($d in $_cands) {
if ($d) { & wsl.exe -d $d -- true *> $null } else { & wsl.exe -- true *> $null }
if ($LASTEXITCODE -ne 0) { continue }
$_label = if ($d) { $d } else { "(default)" }
if ($_done[$_label]) { continue }
$_done[$_label] = $true
if ($d) { & wsl.exe -d $d -u root -- bash -lc $_clean *> $null }
else { & wsl.exe -u root -- bash -lc $_clean *> $null }
_Substep "cleaned Unsloth from WSL distro: $_label" "Green"
}
} catch { }
}
Write-Host ""
Write-Host "Unsloth Studio uninstalled."
Write-Host "Note: Hugging Face model cache at %USERPROFILE%\.cache\huggingface was left in place."
Write-Host "Remove it manually with 'Remove-Item -Recurse -Force `"$env:USERPROFILE\.cache\huggingface\hub`"' if desired."
if (-not $env:UNSLOTH_STUDIO_HOME -and -not $env:STUDIO_HOME) {
Write-Host ""
Write-Host "If you installed Unsloth Studio with UNSLOTH_STUDIO_HOME or STUDIO_HOME"
Write-Host "pointing at a custom directory, re-run this script with the same variable"
Write-Host "set to also remove that install tree, e.g.:"
Write-Host " `$env:UNSLOTH_STUDIO_HOME = 'C:\your\path'; irm https://raw.githubusercontent.com/unslothai/unsloth/main/scripts/uninstall.ps1 | iex"
}
# The distro probes leave a failing $LASTEXITCODE; reset so success exits 0. Set the var
# rather than `exit 0` so `irm ... | iex` doesn't terminate the caller's shell.
$global:LASTEXITCODE = 0
}
Uninstall-UnslothStudio @args