unsloth/studio/setup.sh
oobabooga fcb1152c76
Studio: source CPU llama.cpp prebuilts from unslothai/llama.cpp (#6311)
* 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>
2026-07-08 05:34:59 -07:00

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#!/usr/bin/env bash
# SPDX-License-Identifier: AGPL-3.0-only
# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
RULE=$(printf '\342\224\200%.0s' {1..52})
# ── Parse flags ──
# --local: install from the local repo checkout (overlays unsloth as editable
# and unsloth-zoo from git main). Mirrors install.sh --local for the Colab
# path that runs setup.sh directly without going through install.sh.
if [ "$#" -gt 0 ]; then
for _arg in "$@"; do
case "$_arg" in
--local)
export STUDIO_LOCAL_INSTALL=1
export STUDIO_LOCAL_REPO="$REPO_ROOT"
;;
esac
done
fi
# ── Maintainer-editable defaults ──────────────────────────────────────────
# Change these in the GitHub-hosted script so all users get updated defaults.
# User environment variables always override these baked-in values.
#
# _DEFAULT_LLAMA_PR_FORCE : PR number to build by default ("" = normal path)
# _DEFAULT_LLAMA_SOURCE : git clone URL for source builds
# _DEFAULT_LLAMA_TAG : llama.cpp ref to build ("latest" = newest release,
# "master" = bleeding-edge, "bNNNN" = specific tag)
# 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.
# ──────────────────────────────────────────────────────────────────────────
_DEFAULT_LLAMA_PR_FORCE=""
_DEFAULT_LLAMA_SOURCE="https://github.com/ggml-org/llama.cpp"
_DEFAULT_LLAMA_TAG="latest"
_DEFAULT_LLAMA_FORCE_COMPILE_REF="master"
# ── Colors (same palette as startup_banner / install_python_stack) ──
if [ -n "${NO_COLOR:-}" ]; then
C_TITLE= C_DIM= C_OK= C_WARN= C_ERR= C_RST=
elif [ -t 1 ] || [ -n "${FORCE_COLOR:-}" ]; then
C_TITLE=$'\033[38;5;150m'
C_DIM=$'\033[38;5;245m'
C_OK=$'\033[38;5;108m'
C_WARN=$'\033[38;5;136m'
C_ERR=$'\033[91m'
C_RST=$'\033[0m'
else
C_TITLE= C_DIM= C_OK= C_WARN= C_ERR= C_RST=
fi
# ── Output helpers ──
# Consistent column layout: 2-space indent, 15-char label (fits llama-quantize), then value.
# Usage: step <label> <message> [color] (color defaults to C_OK)
# Usage: substep <message> [color] (color defaults to C_DIM)
step() { printf " ${C_DIM}%-15.15s${C_RST}${3:-$C_OK}%s${C_RST}\n" "$1" "$2"; }
substep() { printf " %-15s${2:-$C_DIM}%s${C_RST}\n" "" "$1"; }
_is_verbose() {
[ "${UNSLOTH_VERBOSE:-0}" = "1" ]
}
verbose_substep() {
if _is_verbose; then
substep "$1"
fi
return 0
}
# ── Corporate-mirror / proxy escape hatch for the frontend npm/bun install (#6491) ──
# studio/frontend/.npmrc pins registry=https://registry.npmjs.org/ as a supply-chain
# lock. A project-level pin overrides a corporate user's ~/.npmrc proxy, so the install
# hits npmjs.org directly and a firewall returns 403. UNSLOTH_NPM_REGISTRY is a
# deliberate opt-in: when set we thread it as `--registry <url>` into every npm/bun
# install. `--registry` is the highest-precedence override for BOTH tools and leaves
# min-release-age / save-exact in force. Empty array (the default) expands to nothing
# under `set -u`, so normal installs are unchanged.
_NPM_REGISTRY_ARGS=()
if [ -n "${UNSLOTH_NPM_REGISTRY:-}" ]; then
_NPM_REGISTRY_ARGS=(--registry "$UNSLOTH_NPM_REGISTRY")
fi
# Failure-path capture log consumed by _suggest_npm_registry. Set to a temp file
# around the npm/bun installs; "" elsewhere so unrelated run_quiet calls don't capture.
_CAPTURE_LOG=""
# 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.
# $1 = path to a captured install log (may be empty/missing).
_suggest_npm_registry() {
[ -n "${UNSLOTH_NPM_REGISTRY:-}" ] && return 0
local _log="${1:-}"
# If we captured output and it does NOT look like a registry/network problem, stay
# quiet -- the raw error already shown is more useful than a misleading hint.
if [ -n "$_log" ] && [ -s "$_log" ] \
&& ! grep -Eqi '40[13]|ENOTFOUND|ECONNREFUSED|ECONNRESET|ETIMEDOUT|EAI_AGAIN|ConnectionRefused|failed to resolve|registry\.npmjs\.org|getaddrinfo|tunneling socket|network|proxy|self.?signed|unable to (get|verify)' "$_log"; then
return 0
fi
# Best-effort: surface a mirror the user already configured (env or ~/.npmrc).
# 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 -- the caller is
# still inside studio/frontend when this runs.
local _mirror="${NPM_CONFIG_REGISTRY:-${npm_config_registry:-}}"
if [ -z "$_mirror" ] && command -v npm >/dev/null 2>&1; then
_mirror="$( (cd / 2>/dev/null && npm config get registry) 2>/dev/null || true )"
fi
case "$_mirror" in
""|undefined|null|https://registry.npmjs.org|https://registry.npmjs.org/) _mirror="" ;;
esac
printf '\n' >&2
step "frontend" "registry.npmjs.org looks blocked (corporate firewall/proxy?)" "$C_WARN" >&2
if [ -n "$_mirror" ]; then
substep "Studio pins the public npm registry; your mirror is being ignored." >&2
substep "Detected a registry in your npm config:" >&2
substep " $_mirror" >&2
substep "Re-run pointing Studio at it:" >&2
substep " UNSLOTH_NPM_REGISTRY=$_mirror ./install.sh --local" >&2
else
substep "If you use a private mirror/proxy, point Studio at it and re-run:" >&2
substep " UNSLOTH_NPM_REGISTRY=https://your-mirror.example/api/npm/ ./install.sh --local" >&2
fi
substep "(min-release-age and save-exact stay enforced.)" >&2
return 0
}
run_maybe_quiet() {
if _is_verbose; then
"$@"
else
"$@" > /dev/null 2>&1
fi
}
# ── Helper: run command quietly, show output only on failure ──
_run_quiet() {
local on_fail=$1
local label=$2
shift 2
if _is_verbose; then
local exit_code
"$@" && return 0
exit_code=$?
step "error" "$label failed (exit code $exit_code)" "$C_ERR" >&2
if [ "$on_fail" = "exit" ]; then
exit "$exit_code"
else
return "$exit_code"
fi
fi
local tmplog
tmplog=$(mktemp) || {
step "error" "Failed to create temporary file" "$C_ERR" >&2
[ "$on_fail" = "exit" ] && exit 1 || return 1
}
if "$@" >"$tmplog" 2>&1; then
rm -f "$tmplog"
return 0
else
local exit_code=$?
step "error" "$label failed (exit code $exit_code)" "$C_ERR" >&2
cat "$tmplog" >&2
if [ -n "${_CAPTURE_LOG:-}" ]; then cat "$tmplog" >> "$_CAPTURE_LOG" 2>/dev/null || true; fi
rm -f "$tmplog"
if [ "$on_fail" = "exit" ]; then
exit "$exit_code"
else
return "$exit_code"
fi
fi
}
run_quiet() {
_run_quiet exit "$@"
}
run_quiet_no_exit() {
_run_quiet return "$@"
}
_nvcc_meets_llama_minimum() {
# Echo "ok|too_old|unknown" then the parsed "X.Y" version, one per line.
# llama.cpp needs CUDA toolkit >= 12.4 (#4437; setup.ps1 aborts via #4517).
_nvcc_bin=$1
[ -n "$_nvcc_bin" ] || { echo "unknown"; echo ""; return 0; }
_raw=$("$_nvcc_bin" --version 2>/dev/null \
| sed -n 's/.*release \([0-9][0-9]*\.[0-9][0-9]*\).*/\1/p' \
| head -1)
if [ -z "$_raw" ]; then
echo "unknown"; echo ""; return 0
fi
_maj=${_raw%%.*}
_min_raw=${_raw#*.}
_min=${_min_raw%%.*}
if [ "$_maj" -lt 12 ] 2>/dev/null; then
echo "too_old"
elif [ "$_maj" -eq 12 ] && [ "$_min" -lt 4 ] 2>/dev/null; then
echo "too_old"
else
echo "ok"
fi
echo "$_raw"
}
# Echo a ';'-separated CUDA arch list (e.g. "86;120"). Override ($2,
# UNSLOTH_LLAMA_CUDA_ARCHS) wins verbatim; else parse+dedupe compute_cap text
# ($1). Empty means "no arch detected", so the caller builds CPU instead of a
# PTX-only binary that fails on an old driver (#5854).
_resolve_cuda_archs() {
local _raw_caps=$1
local _arch_override=$2
if [ -n "$_arch_override" ]; then
printf '%s' "$_arch_override"
return 0
fi
local _archs="" _cap _arch
while IFS= read -r _cap; do
_cap=$(printf '%s' "$_cap" | tr -d '[:space:]')
if [[ "$_cap" =~ ^([0-9]+)\.([0-9]+)$ ]]; then
_arch="${BASH_REMATCH[1]}${BASH_REMATCH[2]}"
case ";$_archs;" in
*";$_arch;"*) ;;
*) _archs="${_archs:+$_archs;}$_arch" ;;
esac
fi
done <<< "$_raw_caps"
printf '%s' "$_archs"
}
# Run a GPU probe under a 10s timeout when `timeout` is available so a wedged
# NVIDIA driver cannot hang setup; fall back to a bare call where it is not.
_setup_run_smi() {
if command -v timeout >/dev/null 2>&1; then
timeout 10 "$@"
else
"$@"
fi
}
# Returns 0 when CUDA_VISIBLE_DEVICES is set to "" or "-1", i.e. every NVIDIA
# device is deliberately hidden (mixed AMD+NVIDIA hosts steering work to the
# AMD card). Unset means all devices visible. nvidia-smi ignores this env var,
# so the probes below cannot see the distinction on their own.
_setup_cvd_hides_nvidia() {
[ "${CUDA_VISIBLE_DEVICES+set}" = "set" ] || return 1
_setup_cvd_trim=$(printf '%s' "$CUDA_VISIBLE_DEVICES" | tr -d '[:space:]')
[ -z "$_setup_cvd_trim" ] || [ "$_setup_cvd_trim" = "-1" ]
}
# Returns 0 when an NVIDIA GPU is present and usable. Primary probe is
# `nvidia-smi -L` (timeout-bounded). Fallback is /proc/driver/nvidia/gpus,
# which the driver populates per GPU regardless of nvidia-smi state -- handles
# PATH gaps and driver init races. Mirrors install.sh _has_usable_nvidia_gpu
# (PR 6174) so setup routes the same way as the torch installer. A GPU hidden
# via CUDA_VISIBLE_DEVICES=""/-1 counts as NOT usable (matches
# install_llama_prebuilt.py has_usable_nvidia), so the AMD probes still run
# and a mixed host steered to its AMD card keeps the ROCm route.
_setup_has_usable_nvidia_gpu() {
if _setup_cvd_hides_nvidia; then
return 1
fi
_setup_nvsmi=""
if command -v nvidia-smi >/dev/null 2>&1; then
_setup_nvsmi="nvidia-smi"
elif [ -x "/usr/bin/nvidia-smi" ]; then
_setup_nvsmi="/usr/bin/nvidia-smi"
fi
if [ -n "$_setup_nvsmi" ]; then
if _setup_run_smi "$_setup_nvsmi" -L 2>/dev/null \
| awk '/^GPU[[:space:]]+[0-9]+:/{found=1} END{exit !found}'; then
return 0
fi
fi
if [ -d /proc/driver/nvidia/gpus ] && \
[ -n "$(ls -A /proc/driver/nvidia/gpus 2>/dev/null)" ]; then
return 0
fi
return 1
}
_cuda_driver_max_version() {
command -v nvidia-smi >/dev/null 2>&1 || return 0
_setup_run_smi nvidia-smi 2>/dev/null \
| sed -nE 's/.*CUDA( UMD)? Version:[[:space:]]*([0-9]+)\.([0-9]+).*/\2.\3/p' \
| head -1 || true
}
_cuda_version_gt() {
local _left=${1:-}
local _right=${2:-}
if ! [[ "$_left" =~ ^([0-9]+)\.([0-9]+)$ ]]; then
return 1
fi
local _left_major=$((10#${BASH_REMATCH[1]}))
local _left_minor=$((10#${BASH_REMATCH[2]}))
if ! [[ "$_right" =~ ^([0-9]+)\.([0-9]+)$ ]]; then
return 1
fi
local _right_major=$((10#${BASH_REMATCH[1]}))
local _right_minor=$((10#${BASH_REMATCH[2]}))
if [ "$_left_major" -gt "$_right_major" ]; then
return 0
fi
if [ "$_left_major" -eq "$_right_major" ] && [ "$_left_minor" -gt "$_right_minor" ]; then
return 0
fi
return 1
}
_cuda_toolkit_major_gt_driver() {
local _toolkit_version=${1:-}
local _driver_version=${2:-}
if ! [[ "$_toolkit_version" =~ ^([0-9]+)\.([0-9]+)$ ]]; then
return 1
fi
local _toolkit_major=$((10#${BASH_REMATCH[1]}))
if ! [[ "$_driver_version" =~ ^([0-9]+)\.([0-9]+)$ ]]; then
return 1
fi
local _driver_major=$((10#${BASH_REMATCH[1]}))
[ "$_toolkit_major" -gt "$_driver_major" ]
}
_cuda_nvcc_candidate_paths() {
if command -v nvcc >/dev/null 2>&1; then
command -v nvcc
fi
if [ -x /usr/local/cuda/bin/nvcc ]; then
printf '%s\n' "/usr/local/cuda/bin/nvcc"
fi
ls -d /usr/local/cuda-*/bin/nvcc 2>/dev/null | sort -V -r 2>/dev/null || true
}
_cuda_find_compatible_nvcc_for_driver() {
local _driver_version=$1
local _exclude_path=${2:-}
local _candidate _seen _check _status _version
local _best_path="" _best_version=""
_seen="
"
while IFS= read -r _candidate; do
[ -n "$_candidate" ] || continue
[ "$_candidate" != "$_exclude_path" ] || continue
[ -x "$_candidate" ] || continue
case "$_seen" in
*"
$_candidate
"*) continue ;;
esac
_seen="${_seen}${_candidate}
"
_check="$(_nvcc_meets_llama_minimum "$_candidate")"
_status="$(printf '%s\n' "$_check" | sed -n '1p')"
_version="$(printf '%s\n' "$_check" | sed -n '2p')"
[ "$_status" = "ok" ] || continue
[ -n "$_version" ] || continue
if _cuda_toolkit_major_gt_driver "$_version" "$_driver_version"; then
continue
fi
if [ -z "$_best_version" ] || _cuda_version_gt "$_version" "$_best_version"; then
_best_path="$_candidate"
_best_version="$_version"
fi
done <<EOF
$(_cuda_nvcc_candidate_paths)
EOF
[ -n "$_best_path" ] || return 1
printf '%s\n%s\n' "$_best_path" "$_best_version"
}
_print_cuda_driver_toolkit_mismatch() {
local _toolkit_version=$1
local _driver_version=$2
local _toolkit_major=${_toolkit_version%%.*}
local _driver_major=${_driver_version%%.*}
substep "CUDA Toolkit $_toolkit_version is a major-version mismatch: toolkit major $_toolkit_major exceeds driver CUDA major $_driver_major ($_driver_version)." "$C_WARN"
substep "Update the NVIDIA GPU driver to run CUDA Toolkit $_toolkit_version, or install a CUDA $_driver_major.x toolkit." "$C_WARN"
substep "Or let Studio use the prebuilt CUDA bundle; it does not need the local toolkit." "$C_WARN"
}
print_llama_error_log() {
local log_file=$1
[ -s "$log_file" ] || return 0
substep "llama.cpp diagnostics (last 120 lines):"
tail -n 120 "$log_file" | sed 's/^/ | /' >&2
}
installed_llama_prebuilt_release() {
local install_dir=${1:-}
local metadata_path="$install_dir/UNSLOTH_PREBUILT_INFO.json"
[ -f "$metadata_path" ] || return 0
python - "$metadata_path" <<'PY' 2>/dev/null || true
import json
import sys
from pathlib import Path
try:
payload = json.loads(Path(sys.argv[1]).read_text(encoding="utf-8"))
except Exception:
raise SystemExit(0)
if not isinstance(payload, dict):
raise SystemExit(0)
repo = str(payload.get("published_repo") or "").strip()
release_tag = str(payload.get("release_tag") or "").strip()
llama_tag = str(payload.get("tag") or "").strip()
source = str(payload.get("source") or "").strip()
binary_repo = str(payload.get("binary_repo") or "").strip()
binary_tag = str(payload.get("binary_release_tag") or "").strip()
if not repo or not release_tag:
raise SystemExit(0)
# For non-fork sources (e.g. ggml-org upstream prebuilts) the published_repo/
# release_tag refer to the unsloth source tree while the actual binaries came
# from a different repo. Show both so the log is unambiguous.
if source and source != "upstream" and binary_repo and binary_tag and binary_repo != repo:
message = f"installed release: {repo}@{release_tag} + {source}@{binary_tag}"
else:
message = f"installed release: {repo}@{release_tag}"
if llama_tag and llama_tag != release_tag:
message += f" (tag {llama_tag})"
print(message)
PY
}
print_installed_llama_prebuilt_release() {
local install_dir=${1:-}
local installed_release
installed_release="$(installed_llama_prebuilt_release "$install_dir")"
if [ -n "$installed_release" ]; then
substep "$installed_release"
fi
}
# ── Banner ──
echo ""
printf " ${C_TITLE}%s${C_RST}\n" "🦥 Unsloth Studio Setup"
printf " ${C_DIM}%s${C_RST}\n" "$RULE"
verbose_substep "verbose diagnostics enabled"
_LLAMA_ONLY="${UNSLOTH_STUDIO_LLAMA_ONLY:-0}"
if [ "$_LLAMA_ONLY" = "1" ]; then
substep "llama.cpp only mode"
fi
if [ "${STUDIO_LOCAL_INSTALL:-0}" = "1" ]; then
substep "local mode: overlaying $REPO_ROOT (editable) + unsloth-zoo from git main"
fi
# ── Clean up stale caches ──
rm -rf "$REPO_ROOT/unsloth_compiled_cache"
rm -rf "$SCRIPT_DIR/backend/unsloth_compiled_cache"
rm -rf "$SCRIPT_DIR/tmp/unsloth_compiled_cache"
# ── Detect Colab ──
IS_COLAB=false
keynames=$'\n'$(printenv | cut -d= -f1)
if [[ "$keynames" == *$'\nCOLAB_'* ]]; then
IS_COLAB=true
fi
# Resolve studio home + ownership marker before the llama-only split: the
# llama.cpp section needs STUDIO_HOME / _STUDIO_HOME_IS_CUSTOM, but
# UNSLOTH_STUDIO_LLAMA_ONLY=1 ('unsloth studio update') skips the base install.
# UNSLOTH_STUDIO_HOME (or STUDIO_HOME alias) overrides the install root
# (mirrors install.sh). UNSLOTH_STUDIO_HOME wins when both are set.
_studio_override_var=""
_studio_override="${UNSLOTH_STUDIO_HOME:-}"
if [ -n "$_studio_override" ]; then
_studio_override_var="UNSLOTH_STUDIO_HOME"
else
_studio_override="${STUDIO_HOME:-}"
[ -n "$_studio_override" ] && _studio_override_var="STUDIO_HOME"
fi
# Strip whitespace so " " is treated as unset (matches Python .strip()).
_studio_override=$(printf '%s' "$_studio_override" | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')
case "$_studio_override" in
"~") _studio_override="$HOME" ;;
"~/"*) _studio_override="$HOME/${_studio_override#'~/'}" ;;
esac
if [ -n "$_studio_override" ]; then
# setup.sh runs against an existing install (via 'unsloth studio update');
# a typo in the override must fail fast instead of materializing an
# empty workspace dir. Mirrors setup.ps1 behavior.
if [ ! -d "$_studio_override" ]; then
echo "ERROR: $_studio_override_var=$_studio_override does not exist." >&2
echo " Run install.sh to create the install root before 'unsloth studio update'." >&2
exit 1
fi
[ -w "$_studio_override" ] || { echo "ERROR: $_studio_override_var=$_studio_override is not writable." >&2; exit 1; }
STUDIO_HOME="$(CDPATH= cd -P -- "$_studio_override" && pwd -P)" || exit 1
else
STUDIO_HOME="$HOME/.unsloth/studio"
fi
VENV_DIR="$STUDIO_HOME/unsloth_studio"
VENV_T5_530_DIR="$STUDIO_HOME/.venv_t5_530"
VENV_T5_550_DIR="$STUDIO_HOME/.venv_t5_550"
VENV_T5_510_DIR="$STUDIO_HOME/.venv_t5_510"
_STUDIO_OWNED_MARKER=".unsloth-studio-owned"
_LEGACY_STUDIO_HOME="$HOME/.unsloth/studio"
_studio_home_canon="$STUDIO_HOME"
if [ -d "$_studio_home_canon" ]; then
_studio_home_canon=$(CDPATH= cd -P -- "$_studio_home_canon" 2>/dev/null && pwd -P) \
|| _studio_home_canon="$STUDIO_HOME"
fi
if [ -d "$_LEGACY_STUDIO_HOME" ]; then
_LEGACY_STUDIO_HOME=$(CDPATH= cd -P -- "$_LEGACY_STUDIO_HOME" 2>/dev/null && pwd -P) \
|| _LEGACY_STUDIO_HOME="$HOME/.unsloth/studio"
fi
_STUDIO_HOME_IS_CUSTOM=false
if [ "$_studio_home_canon" != "$_LEGACY_STUDIO_HOME" ]; then
_STUDIO_HOME_IS_CUSTOM=true
fi
# Directory-local evidence Studio created "$1": only prebuilt-installer metadata
# counts (UNSLOTH_PREBUILT_INFO.json for llama.cpp, UNSLOTH_NODE_PREBUILT_INFO.json
# for Node), both written only by our installers. Mirrors the setup.ps1 Node guard.
# A markerless source build stays strict since this runs right before an rm -rf.
_studio_owned_adoptable() {
[ -f "$1/UNSLOTH_PREBUILT_INFO.json" ] && return 0
[ -f "$1/UNSLOTH_NODE_PREBUILT_INFO.json" ] && return 0
return 1
}
_assert_studio_owned_or_absent() {
_aso_dir="$1"
_aso_label="$2"
[ -d "$_aso_dir" ] || return 0
if [ "$_STUDIO_HOME_IS_CUSTOM" = true ] && [ ! -f "$_aso_dir/$_STUDIO_OWNED_MARKER" ]; then
if _studio_owned_adoptable "$_aso_dir"; then
: > "$_aso_dir/$_STUDIO_OWNED_MARKER" 2>/dev/null || true
return 0
fi
echo "ERROR: $_aso_dir already exists and is not marked as a Studio-owned $_aso_label." >&2
echo " Move it aside or choose an empty UNSLOTH_STUDIO_HOME before re-running." >&2
exit 1
fi
}
if [ "$_LLAMA_ONLY" != "1" ]; then
# ── Detect whether frontend needs building ──
# Skip if SKIP_STUDIO_FRONTEND=1 (Tauri desktop app bundles its own frontend),
# or if dist/ exists AND no tracked input is newer than dist/.
if [ "${SKIP_STUDIO_FRONTEND:-0}" = "1" ]; then
_NEED_FRONTEND_BUILD=false
step "frontend" "bundled (Tauri)"
else
_NEED_FRONTEND_BUILD=true
if [ -d "$SCRIPT_DIR/frontend/dist" ]; then
_changed=$(find "$SCRIPT_DIR/frontend" -maxdepth 1 -type f \
! -name 'bun.lock' \
-newer "$SCRIPT_DIR/frontend/dist" -print -quit 2>/dev/null)
if [ -z "$_changed" ]; then
_changed=$(find "$SCRIPT_DIR/frontend/src" "$SCRIPT_DIR/frontend/public" \
-type f -newer "$SCRIPT_DIR/frontend/dist" -print -quit 2>/dev/null) || true
fi
[ -z "$_changed" ] && _NEED_FRONTEND_BUILD=false
fi
fi # end SKIP_STUDIO_FRONTEND guard
# OXC validator runtime (below) needs node/npm whenever its dir exists, regardless
# of dist staleness; provision Node when the frontend builds OR the OXC dir exists.
_OXC_DIR="$SCRIPT_DIR/backend/core/data_recipe/oxc-validator"
if [ "$_NEED_FRONTEND_BUILD" = false ] && [ ! -d "$_OXC_DIR" ]; then
step "frontend" "up to date"
verbose_substep "frontend dist is newer than source inputs"
else
# ── Node (isolated; never touches the system Node/npm) ──
# Studio's frontend (Vite 8) needs Node ^20.19 || >=22.12 || >=23 and npm >= 11.
# Three sources:
# system -- system Node + npm already satisfy both; used read-only.
# bundled -- install a pinned isolated Node under $UNSLOTH_HOME/node, build-only.
# skip -- UNSLOTH_SKIP_NODE_INSTALL=1 and system unsuitable; print manual fix.
# decide_node_source(node_v, npm_v, skip_flag) -> system | bundled | skip
# (pure; unit-tested in tests/sh/test_node_decision.sh).
decide_node_source() {
_dns_node="${1#v}"
_dns_npm="$2"
_dns_skip="$3"
# Treat empty or non-numeric versions as "missing".
case "$_dns_node" in ''|*[!0-9.]*) _dns_node='' ;; esac
case "$_dns_npm" in ''|*[!0-9.]*) _dns_npm='' ;; esac
if [ -n "$_dns_node" ] && [ -n "$_dns_npm" ]; then
_dns_nmaj="${_dns_node%%.*}"
case "$_dns_node" in
*.*) _dns_rest="${_dns_node#*.}"; _dns_nmin="${_dns_rest%%.*}" ;;
*) _dns_nmin=0 ;;
esac
case "$_dns_nmin" in ''|*[!0-9]*) _dns_nmin=0 ;; esac
_dns_pmaj="${_dns_npm%%.*}"
_dns_ok=false
if [ "$_dns_nmaj" -eq 20 ] && [ "$_dns_nmin" -ge 19 ]; then _dns_ok=true; fi
if [ "$_dns_nmaj" -eq 22 ] && [ "$_dns_nmin" -ge 12 ]; then _dns_ok=true; fi
if [ "$_dns_nmaj" -ge 23 ]; then _dns_ok=true; fi
if [ "$_dns_ok" = true ] && [ "$_dns_pmaj" -ge 11 ]; then
echo system
return 0
fi
fi
if [ "$_dns_skip" = "1" ]; then
echo skip
return 0
fi
echo bundled
}
# Mirror the llama.cpp UNSLOTH_HOME derivation; the frontend build runs first.
if [ "$_STUDIO_HOME_IS_CUSTOM" = true ]; then
_NODE_PARENT="$STUDIO_HOME"
else
_NODE_PARENT="$HOME/.unsloth"
fi
NODE_DIR="$_NODE_PARENT/node"
_SYS_NODE_VER="$(node -v 2>/dev/null || true)"
_SYS_NPM_VER="$(npm -v 2>/dev/null || true)"
NODE_SOURCE="$(decide_node_source "$_SYS_NODE_VER" "$_SYS_NPM_VER" "${UNSLOTH_SKIP_NODE_INSTALL:-0}")"
_FRONTEND_SKIP=false
if [ "$NODE_SOURCE" = system ]; then
step "node" "$(node -v) | npm $(npm -v) (system)"
elif [ "$NODE_SOURCE" = bundled ]; then
mkdir -p "$_NODE_PARENT"
# install_node_prebuilt.py uses os.replace(); guard a custom-home dir so we
# never displace a user-owned $UNSLOTH_STUDIO_HOME/node.
if [ "$_STUDIO_HOME_IS_CUSTOM" = true ]; then
_assert_studio_owned_or_absent "$NODE_DIR" "Node install"
fi
substep "installing isolated Node (system Node/npm left untouched)..."
# Runs before the venv is activated, so bare `python` may be absent; resolve
# venv python, then python3, then python.
if [ -x "$VENV_DIR/bin/python" ]; then
_NODE_PY="$VENV_DIR/bin/python"
elif command -v python3 >/dev/null 2>&1; then
_NODE_PY="python3"
else
_NODE_PY="python"
fi
_NODE_LOG="$(mktemp)"
set +e
if _is_verbose; then
"$_NODE_PY" "$SCRIPT_DIR/install_node_prebuilt.py" --install-dir "$NODE_DIR" 2>&1 | tee "$_NODE_LOG"
_NODE_STATUS=${PIPESTATUS[0]}
else
"$_NODE_PY" "$SCRIPT_DIR/install_node_prebuilt.py" --install-dir "$NODE_DIR" >"$_NODE_LOG" 2>&1
_NODE_STATUS=$?
fi
set -e
if [ "$_NODE_STATUS" -eq 3 ]; then
step "node" "install blocked by another active Studio install" "$C_ERR"
sed 's/^/ | /' "$_NODE_LOG" >&2; rm -f "$_NODE_LOG"
substep "close other Studio installs and retry"
exit 3
elif [ "$_NODE_STATUS" -ne 0 ]; then
step "node" "isolated Node install failed" "$C_ERR"
sed 's/^/ | /' "$_NODE_LOG" >&2; rm -f "$_NODE_LOG"
substep "install Node >= 20.19 (with npm >= 11) yourself and re-run, or check your network"
exit 1
fi
grep -Fq "already matches" "$_NODE_LOG" && verbose_substep "isolated Node already up to date"
rm -f "$_NODE_LOG"
if [ "$_STUDIO_HOME_IS_CUSTOM" = true ] && [ -d "$NODE_DIR" ]; then
: > "$NODE_DIR/$_STUDIO_OWNED_MARKER" 2>/dev/null || true
fi
# Prepend the isolated bin (this process only) so node/npm/bun resolve here.
export PATH="$NODE_DIR/bin:$PATH"
# Keep npm and module resolution inside the isolated Node.
export NPM_CONFIG_PREFIX="$NODE_DIR"
export npm_config_prefix="$NODE_DIR"
unset NODE_PATH
hash -r 2>/dev/null || true
step "node" "$(node -v) | npm $(npm -v) (isolated)"
else
_FRONTEND_SKIP=true
step "frontend" "skipped (no suitable Node; system left untouched)" "$C_WARN"
substep "found Node='${_SYS_NODE_VER:-none}' npm='${_SYS_NPM_VER:-none}'; Studio needs Node >=20.19/22.12/23 and npm >= 11"
substep "install a suitable Node + npm, or unset UNSLOTH_SKIP_NODE_INSTALL to let Unsloth manage an isolated Node"
fi
verbose_substep "node source: $NODE_SOURCE (sys node=${_SYS_NODE_VER:-none} npm=${_SYS_NPM_VER:-none}) dir=$NODE_DIR"
if [ "$_FRONTEND_SKIP" = true ]; then
: # no suitable Node (skip source): message already shown above; nothing to build
elif [ "$_NEED_FRONTEND_BUILD" = false ]; then
# Node was provisioned only for the OXC runtime; the dist is already current.
step "frontend" "up to date"
verbose_substep "frontend dist is newer than source inputs"
else
# ── Install bun (optional, faster package installs) ──
# Install bun via npm only when we manage the isolated Node (npm -g lands in the
# isolated prefix); on a system Node we install nothing global. Build falls back to npm.
if command -v bun &>/dev/null; then
substep "bun already installed ($(bun --version))"
elif [ "$NODE_SOURCE" = bundled ]; then
substep "installing bun..."
# --allow-scripts=bun: npm >=11.16 gates install scripts and bun's
# postinstall fetches its binary; without it the install is a broken stub.
if run_maybe_quiet npm install -g bun --allow-scripts=bun "${_NPM_REGISTRY_ARGS[@]+"${_NPM_REGISTRY_ARGS[@]}"}" && command -v bun &>/dev/null; then
substep "bun installed ($(bun --version))"
else
substep "bun install skipped (npm will be used instead)"
fi
else
verbose_substep "skipping global bun install on system Node (npm will be used)"
fi
# ── Build frontend ──
substep "building frontend..."
cd "$SCRIPT_DIR/frontend"
_HIDDEN_GITIGNORES=()
_dir="$(pwd)"
while [ "$_dir" != "/" ]; do
_dir="$(dirname "$_dir")"
if [ -f "$_dir/.gitignore" ] && grep -qx '\*' "$_dir/.gitignore" 2>/dev/null; then
mv "$_dir/.gitignore" "$_dir/.gitignore._twbuild"
_HIDDEN_GITIGNORES+=("$_dir/.gitignore")
fi
done
_restore_gitignores() {
for _gi in "${_HIDDEN_GITIGNORES[@]+"${_HIDDEN_GITIGNORES[@]}"}"; do
mv "${_gi}._twbuild" "$_gi" 2>/dev/null || true
done
}
trap _restore_gitignores EXIT
# Use bun for install if available (faster), fall back to npm.
# Build always uses npm (Node runtime -- avoids bun runtime issues on some platforms).
# NOTE: We intentionally avoid run_quiet for the bun install attempt because
# run_quiet calls exit on failure, which would kill the script before the npm
# fallback can run. Instead we capture output manually and only show it on failure.
#
# IMPORTANT: bun's package cache can become corrupt -- packages get stored
# with only metadata (package.json, README) but no actual content (bin/,
# lib/). When this happens bun install exits 0 but leaves binaries missing.
# We verify critical binaries after install. If missing, we clear the cache
# and retry once before falling back to npm.
_try_bun_install() {
local _log _exit_code=0
_log=$(mktemp)
bun install "${_NPM_REGISTRY_ARGS[@]+"${_NPM_REGISTRY_ARGS[@]}"}" >"$_log" 2>&1 || _exit_code=$?
# bun may create .exe shims on Windows (Git Bash / MSYS2) instead of plain scripts
if [ "$_exit_code" -eq 0 ] \
&& { [ -x node_modules/.bin/tsc ] || [ -f node_modules/.bin/tsc.exe ] || [ -f node_modules/.bin/tsc.bunx ]; } \
&& { [ -x node_modules/.bin/vite ] || [ -f node_modules/.bin/vite.exe ] || [ -f node_modules/.bin/vite.bunx ]; }; then
rm -f "$_log"
return 0
fi
# Either bun install failed or it exited 0 but left packages missing
if [ "$_exit_code" -ne 0 ]; then
echo " bun install failed (exit code $_exit_code):"
else
echo " bun install exited 0 but critical binaries are missing:"
fi
sed 's/^/ | /' "$_log" >&2
if [ -n "${_CAPTURE_LOG:-}" ]; then cat "$_log" >> "$_CAPTURE_LOG" 2>/dev/null || true; fi
rm -f "$_log"
rm -rf node_modules
return 1
}
# Capture install output (bun + npm fallback) so we can detect a registry block.
_FRONTEND_INSTALL_LOG=$(mktemp)
_CAPTURE_LOG="$_FRONTEND_INSTALL_LOG"
_bun_install_ok=false
if command -v bun &>/dev/null; then
substep "using bun for package install (faster)"
if _try_bun_install; then
_bun_install_ok=true
else
# First attempt failed, likely due to corrupt cache entries.
# Clear the cache and retry once.
echo " Clearing bun cache and retrying..."
run_maybe_quiet bun pm cache rm || true
if _try_bun_install; then
_bun_install_ok=true
fi
fi
fi
if [ "$_bun_install_ok" = false ]; then
# `|| _npm_install_rc=$?` keeps this off `set -e`'s exit path (run_quiet_no_exit
# returns non-zero on failure) so the hint branch is reachable; it also captures
# the exact exit code. Mirrors the `|| BUILD_OK=false` idiom used below.
_npm_install_rc=0
run_quiet_no_exit "npm install" npm install --no-fund --no-audit --loglevel=error "${_NPM_REGISTRY_ARGS[@]+"${_NPM_REGISTRY_ARGS[@]}"}" || _npm_install_rc=$?
if [ "$_npm_install_rc" -ne 0 ]; then
_suggest_npm_registry "$_FRONTEND_INSTALL_LOG"
rm -f "$_FRONTEND_INSTALL_LOG"
exit "$_npm_install_rc"
fi
fi
_CAPTURE_LOG=""
rm -f "$_FRONTEND_INSTALL_LOG"
run_quiet "npm run build" npm run build
_restore_gitignores
trap - EXIT
_MAX_CSS=$(find "$SCRIPT_DIR/frontend/dist/assets" -name '*.css' -exec wc -c {} + 2>/dev/null | sort -n | tail -1 | awk '{print $1}')
if [ -z "$_MAX_CSS" ]; then
step "frontend" "built (warning: no CSS emitted)" "$C_WARN"
elif [ "$_MAX_CSS" -lt 100000 ]; then
step "frontend" "built (warning: CSS may be truncated)" "$C_WARN"
else
step "frontend" "built"
fi
cd "$SCRIPT_DIR"
fi # end _FRONTEND_SKIP guard (Node available: system or isolated)
fi # end frontend build check
# ── oxc-validator runtime ──
# Skip when the user opted out of Node (NODE_SOURCE=skip): there is no suitable
# Node, so do not run npm install against an unsuitable/absent system Node.
if [ -d "$_OXC_DIR" ] && [ "${NODE_SOURCE:-}" != skip ] && command -v npm &>/dev/null; then
cd "$_OXC_DIR"
_OXC_INSTALL_LOG=$(mktemp)
_CAPTURE_LOG="$_OXC_INSTALL_LOG"
# `|| _oxc_install_rc=$?` keeps this off `set -e`'s exit path so the hint branch
# below is reachable; it also captures the exact exit code.
_oxc_install_rc=0
run_quiet_no_exit "npm install (oxc validator runtime)" npm install --no-fund --no-audit --loglevel=error "${_NPM_REGISTRY_ARGS[@]+"${_NPM_REGISTRY_ARGS[@]}"}" || _oxc_install_rc=$?
_CAPTURE_LOG=""
if [ "$_oxc_install_rc" -ne 0 ]; then
_suggest_npm_registry "$_OXC_INSTALL_LOG"
rm -f "$_OXC_INSTALL_LOG"
exit "$_oxc_install_rc"
fi
rm -f "$_OXC_INSTALL_LOG"
cd "$SCRIPT_DIR"
elif [ -d "$_OXC_DIR" ] && [ "${NODE_SOURCE:-}" != skip ]; then
# No npm on PATH: skip rather than abort; the backend Node resolver degrades
# the validator gracefully. Mirrors setup.ps1's elseif on this block.
substep "OXC validator runtime skipped (no npm found); code validation degrades until Node is available" "$C_WARN"
fi
# ── Python venv + deps ──
[ -d "$REPO_ROOT/.venv" ] && rm -rf "$REPO_ROOT/.venv"
[ -d "$REPO_ROOT/.venv_overlay" ] && rm -rf "$REPO_ROOT/.venv_overlay"
[ -d "$REPO_ROOT/.venv_t5" ] && rm -rf "$REPO_ROOT/.venv_t5"
[ -d "$REPO_ROOT/.venv_t5_530" ] && rm -rf "$REPO_ROOT/.venv_t5_530"
[ -d "$REPO_ROOT/.venv_t5_550" ] && rm -rf "$REPO_ROOT/.venv_t5_550"
# Note: do NOT delete $STUDIO_HOME/.venv here — install.sh handles migration
_COLAB_NO_VENV=false
if [ ! -x "$VENV_DIR/bin/python" ]; then
if [ "$IS_COLAB" = true ]; then
# On Colab there is no Studio venv -- install backend deps into system Python.
# Strip all version constraints so pip keeps Colab's pre-installed
# packages (huggingface-hub, datasets, transformers) and only pulls
# in genuinely missing ones (structlog, fastapi, etc.).
substep "Colab detected, installing Studio backend dependencies..."
_COLAB_REQS_TMP="$(mktemp)"
sed 's/[><=!~;].*//' "$SCRIPT_DIR/backend/requirements/studio.txt" \
| grep -v '^#' | grep -v '^$' > "$_COLAB_REQS_TMP"
if [ -s "$_COLAB_REQS_TMP" ]; then
if ! run_quiet_no_exit "install Colab backend deps" pip install -q -r "$_COLAB_REQS_TMP"; then
rm -f "$_COLAB_REQS_TMP"
step "python" "Colab backend dependency install failed" "$C_ERR"
exit 1
fi
else
step "python" "no Colab backend dependencies resolved from requirements file" "$C_WARN"
fi
rm -f "$_COLAB_REQS_TMP"
_COLAB_NO_VENV=true
else
step "python" "venv not found at $VENV_DIR" "$C_ERR"
substep "Run install.sh first to create the environment:"
substep "curl -fsSL https://unsloth.ai/install.sh | sh"
exit 1
fi
else
source "$VENV_DIR/bin/activate"
fi
install_python_stack() {
python "$SCRIPT_DIR/install_python_stack.py"
}
USE_UV=false
if command -v uv &>/dev/null; then
USE_UV=true
elif {
if _is_verbose; then
curl -LsSf https://astral.sh/uv/install.sh | sh
else
curl -LsSf https://astral.sh/uv/install.sh | sh > /dev/null 2>&1
fi
}; then
export PATH="$HOME/.local/bin:$PATH"
command -v uv &>/dev/null && USE_UV=true
fi
fast_install() {
if [ "$USE_UV" = true ]; then
uv pip install --python "$(command -v python)" "$@" && return 0
fi
python -m pip install "$@"
}
cd "$SCRIPT_DIR"
# On Colab without a venv, skip venv-dependent Python deps sections but
# continue to llama.cpp install so GGUF inference is available.
if [ "$_COLAB_NO_VENV" = true ]; then
step "python" "backend deps installed into system Python"
substep "continuing to llama.cpp install for GGUF inference support"
fi
# ── Check if Python deps need updating ──
# Compare installed package version against PyPI latest.
# Skip all Python dependency work if versions match (fast update path).
# On Colab (no venv), skip this version check (it needs $VENV_DIR/bin/python)
# but still run install_python_stack below (it uses sys.executable).
_SKIP_PYTHON_DEPS=false
_SKIP_VERSION_CHECK=false
if [ "$_COLAB_NO_VENV" = true ]; then
_SKIP_VERSION_CHECK=true
fi
_PKG_NAME="${STUDIO_PACKAGE_NAME:-unsloth}"
if [ "$_SKIP_VERSION_CHECK" != true ] && [ "${SKIP_STUDIO_BASE:-0}" != "1" ] && [ "${STUDIO_LOCAL_INSTALL:-0}" != "1" ]; then
# Only check when NOT called from install.sh (which just installed the package)
INSTALLED_VER=$("$VENV_DIR/bin/python" -c "
import sys; from importlib.metadata import version
print(version(sys.argv[1]))
" "$_PKG_NAME" 2>/dev/null || echo "")
LATEST_VER=$(curl -fsSL --max-time 5 "https://pypi.org/pypi/$_PKG_NAME/json" 2>/dev/null \
| "$VENV_DIR/bin/python" -c "import sys,json; print(json.load(sys.stdin)['info']['version'])" 2>/dev/null \
|| echo "")
if [ -n "$INSTALLED_VER" ] && [ -n "$LATEST_VER" ] && [ "$INSTALLED_VER" = "$LATEST_VER" ]; then
step "python" "$_PKG_NAME $INSTALLED_VER is up to date"
_SKIP_PYTHON_DEPS=true
# A pre-#6483-fix install can be stuck on anyio>=4.14 even though
# $_PKG_NAME itself is current; the fast path above would otherwise
# never reach install_python_stack's anyio repair (#6797).
if "$VENV_DIR/bin/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>/dev/null; then
substep "anyio >=4.14 found (#6483) -- forcing dependency pass to repair..."
_SKIP_PYTHON_DEPS=false
fi
elif [ -n "$INSTALLED_VER" ] && [ -n "$LATEST_VER" ]; then
substep "$_PKG_NAME $INSTALLED_VER -> $LATEST_VER available, updating..."
elif [ -z "$LATEST_VER" ]; then
substep "could not reach PyPI, updating to be safe..."
fi
fi
if [ "$_SKIP_PYTHON_DEPS" = false ]; then
install_python_stack
else
step "python" "dependencies up to date"
verbose_substep "python deps check: installed=$_PKG_NAME@${INSTALLED_VER:-unknown} latest=${LATEST_VER:-unknown}"
fi
# ── 6b. Pre-install transformers 5.x into .venv_t5_530/, .venv_t5_550/, and .venv_t5_510/ ──
# Models like GLM-4.7-Flash, Qwen3 MoE need transformers>=5.3.0.
# Gemma 4 models need transformers>=5.5.0; Gemma 4 Unified needs 5.10.x.
# Pre-install into separate directories to avoid runtime pip overhead.
# The training subprocess prepends the appropriate dir to sys.path.
_target_has_pkg_version() {
_thpv_dir="$1"
_thpv_pkg="$2"
_thpv_version="$3"
[ -d "$_thpv_dir" ] || return 1
_thpv_pkg_norm=$(printf '%s' "$_thpv_pkg" | tr '-' '_')
for _thpv_metadata in \
"$_thpv_dir"/"$_thpv_pkg_norm"-*.dist-info/METADATA \
"$_thpv_dir"/"$_thpv_pkg"-*.dist-info/METADATA
do
[ -f "$_thpv_metadata" ] || continue
grep -qx "Version: $_thpv_version" "$_thpv_metadata" && return 0
done
return 1
}
_NEED_T5_INSTALL=false
if [ -d "$STUDIO_HOME/.venv_t5" ]; then
# Legacy layout — migrate
_assert_studio_owned_or_absent "$STUDIO_HOME/.venv_t5" "legacy transformers sidecar venv"
rm -rf "$STUDIO_HOME/.venv_t5"
_NEED_T5_INSTALL=true
fi
[ ! -d "$VENV_T5_530_DIR" ] && _NEED_T5_INSTALL=true
[ ! -d "$VENV_T5_550_DIR" ] && _NEED_T5_INSTALL=true
[ ! -d "$VENV_T5_510_DIR" ] && _NEED_T5_INSTALL=true
_target_has_pkg_version "$VENV_T5_530_DIR" "transformers" "5.3.0" || _NEED_T5_INSTALL=true
_target_has_pkg_version "$VENV_T5_550_DIR" "transformers" "5.5.0" || _NEED_T5_INSTALL=true
_target_has_pkg_version "$VENV_T5_510_DIR" "transformers" "5.10.2" || _NEED_T5_INSTALL=true
# Also reinstall when python deps were updated (packages may need rebuild)
[ "$_SKIP_PYTHON_DEPS" = false ] && _NEED_T5_INSTALL=true
if [ "$_NEED_T5_INSTALL" = true ]; then
_assert_studio_owned_or_absent "$VENV_T5_530_DIR" "transformers 5.3 sidecar venv"
[ -d "$VENV_T5_530_DIR" ] && rm -rf "$VENV_T5_530_DIR"
mkdir -p "$VENV_T5_530_DIR"
: > "$VENV_T5_530_DIR/$_STUDIO_OWNED_MARKER" 2>/dev/null || true
run_quiet "install transformers 5.3.0" fast_install --target "$VENV_T5_530_DIR" --no-deps "transformers==5.3.0"
run_quiet "install huggingface_hub for t5_530" fast_install --target "$VENV_T5_530_DIR" --no-deps "huggingface_hub==1.8.0"
run_quiet "install hf_xet for t5_530" fast_install --target "$VENV_T5_530_DIR" --no-deps "hf_xet==1.4.2"
run_quiet "install tiktoken for t5_530" fast_install --target "$VENV_T5_530_DIR" "tiktoken"
step "transformers" "5.3.0 pre-installed"
_assert_studio_owned_or_absent "$VENV_T5_550_DIR" "transformers 5.5 sidecar venv"
[ -d "$VENV_T5_550_DIR" ] && rm -rf "$VENV_T5_550_DIR"
mkdir -p "$VENV_T5_550_DIR"
: > "$VENV_T5_550_DIR/$_STUDIO_OWNED_MARKER" 2>/dev/null || true
run_quiet "install transformers 5.5.0" fast_install --target "$VENV_T5_550_DIR" --no-deps "transformers==5.5.0"
run_quiet "install huggingface_hub for t5_550" fast_install --target "$VENV_T5_550_DIR" --no-deps "huggingface_hub==1.8.0"
run_quiet "install hf_xet for t5_550" fast_install --target "$VENV_T5_550_DIR" --no-deps "hf_xet==1.4.2"
run_quiet "install tiktoken for t5_550" fast_install --target "$VENV_T5_550_DIR" "tiktoken"
step "transformers" "5.5.0 pre-installed"
_assert_studio_owned_or_absent "$VENV_T5_510_DIR" "transformers 5.10 sidecar venv"
[ -d "$VENV_T5_510_DIR" ] && rm -rf "$VENV_T5_510_DIR"
mkdir -p "$VENV_T5_510_DIR"
: > "$VENV_T5_510_DIR/$_STUDIO_OWNED_MARKER" 2>/dev/null || true
run_quiet "install transformers 5.10.2" fast_install --target "$VENV_T5_510_DIR" --no-deps "transformers==5.10.2"
run_quiet "install huggingface_hub for t5_510" fast_install --target "$VENV_T5_510_DIR" --no-deps "huggingface_hub==1.8.0"
run_quiet "install hf_xet for t5_510" fast_install --target "$VENV_T5_510_DIR" --no-deps "hf_xet==1.4.2"
run_quiet "install tiktoken for t5_510" fast_install --target "$VENV_T5_510_DIR" "tiktoken"
step "transformers" "5.10.2 pre-installed"
fi
fi
# ── GPU detection summary (mirrors setup.ps1 step "gpu" block) ──
# WSL2 ROCDXG: the system rocminfo enumerates the GPU over /dev/dxg only when
# HSA_ENABLE_DXG_DETECTION=1 (a no-op on bare metal), and /opt/rocm/bin can be
# off PATH outside login shells (the profile.d drop-in). Seed both before the
# probes or a ROCDXG WSL host is misdetected as CPU-only.
export HSA_ENABLE_DXG_DETECTION="${HSA_ENABLE_DXG_DETECTION:-1}"
if ! command -v rocminfo >/dev/null 2>&1 && [ -x /opt/rocm/bin/rocminfo ]; then
PATH="$PATH:/opt/rocm/bin"
fi
_setup_amd_detected=false
_setup_nvidia_usable=false
_setup_gfx_all=""
_setup_mkt=""
# NVIDIA priority: classify NVIDIA first and skip the AMD probes entirely on
# a usable-NVIDIA host (mirrors _has_rocm_gpu in install_python_stack.py).
# This also keeps a wedged rocminfo/amd-smi from hanging setup before the
# host is classified; the AMD probes themselves run under _setup_run_smi.
if _setup_has_usable_nvidia_gpu; then
_setup_nvidia_usable=true
fi
if [ "$_setup_nvidia_usable" != true ]; then
if command -v rocminfo >/dev/null 2>&1 && \
_setup_run_smi rocminfo 2>/dev/null | awk '/Name:[[:space:]]*gfx[1-9][0-9]/{found=1} END{exit !found}'; then
_setup_amd_detected=true
_setup_gfx_all=$(_setup_run_smi rocminfo 2>/dev/null | grep -oE 'gfx[1-9][0-9a-z]{2,3}' || true)
_setup_mkt=$(_setup_run_smi rocminfo 2>/dev/null | awk -F': ' \
'/Marketing Name:/{gsub(/^[[:space:]]+|[[:space:]]+$/,"", $2); if($2){print $2; exit}}' || true)
elif command -v amd-smi >/dev/null 2>&1 && \
_setup_run_smi amd-smi list 2>/dev/null | awk '/^GPU[[:space:]]*[:\[][[:space:]]*[0-9]/{ found=1 } END{ exit !found }'; then
_setup_amd_detected=true
_setup_gfx_all=$(_setup_run_smi amd-smi list 2>/dev/null | grep -oE 'gfx[1-9][0-9a-z]{2,3}' || true)
[ -z "$_setup_gfx_all" ] && \
_setup_gfx_all=$(_setup_run_smi amd-smi static --asic 2>/dev/null | grep -oE 'gfx[1-9][0-9a-z]{2,3}' || true)
_setup_mkt=$(_setup_run_smi amd-smi static --asic 2>/dev/null | awk -F'[:|]' \
'/[Mm]arket.?[Nn]ame/{gsub(/^[[:space:]]+|[[:space:]]+$/,"", $2); if($2){print $2; exit}}' || true)
elif [ -e /dev/kfd ] && \
awk 'FNR==1{ gpu=0; amd=0 } /gpu_id/{ gpu=($2+0>0) } /vendor_id/{ amd=($2==4098) } \
gpu && amd { found=1 } END{ exit !found }' \
/sys/class/kfd/kfd/topology/nodes/*/properties 2>/dev/null; then
# KFD sysfs fallback, AMD vendor_id 4098 only (mirrors install.sh
# _has_amd_rocm_gpu): covers AMD hosts where rocminfo/amd-smi are
# missing but the kernel exposes the GPU, so the source-build gate
# below does not drop them to a CPU llama.cpp build. No gfx arch is
# available from this path; name-based inference handles it.
_setup_amd_detected=true
fi
fi
if [ "$_setup_nvidia_usable" = true ]; then
step "gpu" "NVIDIA GPU detected"
elif [ "$_setup_amd_detected" = true ]; then
_setup_vis="${HIP_VISIBLE_DEVICES:-${ROCR_VISIBLE_DEVICES:-}}"
_setup_vis_idx=0
if [ -n "$_setup_vis" ] && [ "$_setup_vis" != "-1" ]; then
_setup_first="${_setup_vis%%,*}"
case "$_setup_first" in ''|*[!0-9]*) ;; *) _setup_vis_idx=$_setup_first ;; esac
fi
_setup_gfx=$(printf '%s\n' "$_setup_gfx_all" | awk -v idx="$_setup_vis_idx" \
'NF && !seen[$0]++ { a[n++]=$0 } END { if(idx>=n) idx=0; if(n>0) print a[idx] }')
# UNSLOTH_ROCM_GFX_ARCH env override (mirrors setup.ps1)
if [ -n "${UNSLOTH_ROCM_GFX_ARCH:-}" ]; then
_setup_gfx="${UNSLOTH_ROCM_GFX_ARCH}"
substep "gfx arch from UNSLOTH_ROCM_GFX_ARCH env override: $_setup_gfx"
# Name-based arch inference when tools don't report gfx (mirrors setup.ps1 nameArchTable)
elif [ -z "$_setup_gfx" ] && [ -n "$_setup_mkt" ]; then
# Kept in sync with the table in install.sh (and the PS nameArchTable).
# gfx1102 matched BEFORE gfx1100 so the spaceless "RX 7700S" lands on
# gfx1102 (bash case has no negative lookahead like the PS tables).
case "$_setup_mkt" in
*"9070 XT"*|*9080*) _setup_gfx="gfx1201" ;; # RDNA 4
*9070*|*9060*) _setup_gfx="gfx1200" ;; # RDNA 4
*"8060S"*|*"8050S"*|*"8040S"*|*"Strix Halo"*|*"Ryzen AI Max"*|*"AI Max"*) _setup_gfx="gfx1151" ;; # RDNA 3.5 (Strix Halo: Radeon 8060S/8050S/8040S iGPU, Ryzen AI Max+)
*"890M"*|*"880M"*|*"860M"*|*"840M"*|*"Strix Point"*|*"Krackan"*|*"HX 37"*|*"AI 9 HX"*|*"AI 9 36"*|*"AI 7 35"*|*"AI 5 34"*|*"AI 7 PRO 35"*|*"AI 5 33"*) _setup_gfx="gfx1150" ;; # RDNA 3.5 (Strix/Krackan Point: Radeon 890M/880M iGPU, Ryzen AI 9 HX 370/375)
*"RX 7600"*|*"RX 7700S"*|*"RX 7650"*|*"PRO W7600"*|*"PRO W7500"*|*"PRO V710"*) _setup_gfx="gfx1102" ;; # RDNA 3 (Navi 33)
*"RX 7900"*|*"RX 7800"*|*"RX 7700"*|*"PRO W7900"*|*"PRO W7800"*|*"PRO W7700"*) _setup_gfx="gfx1100" ;; # RDNA 3 desktop / workstation (Navi 31)
*"780M"*|*"760M"*|*"740M"*|*"Phoenix"*|*"Hawk Point"*|*"Z1 Extreme"*|*"Z2 Extreme"*) _setup_gfx="gfx1103" ;; # RDNA 3 iGPU (Phoenix / Hawk Point)
*"RX 6900"*|*"RX 6800"*|*"RX 6750"*|*"RX 6700"*|*"PRO W6800"*|*"PRO W6900"*) _setup_gfx="gfx1030" ;; # RDNA 2 (Navi 21)
*"RX 6650"*|*"RX 6600"*|*"PRO W6600"*|*"PRO W6650"*) _setup_gfx="gfx1032" ;; # RDNA 2 (Navi 23)
*"RX 6500"*|*"RX 6400"*|*"RX 6300"*|*"PRO W6400"*|*"PRO W6500"*) _setup_gfx="gfx1034" ;; # RDNA 2 (Navi 24)
esac
if [ -n "$_setup_gfx" ]; then
substep "gfx arch inferred from GPU name: $_setup_gfx"
substep "Tip: set UNSLOTH_ROCM_GFX_ARCH=$_setup_gfx to skip inference next time"
fi
fi
# ROCm version via hipconfig, then amd-smi
_setup_rocm_ver=""
if command -v hipconfig >/dev/null 2>&1; then
_setup_rocm_ver=$(hipconfig --version 2>/dev/null | awk 'NR==1 && /^[0-9]/{print; exit}' || true)
fi
if [ -z "$_setup_rocm_ver" ] && command -v amd-smi >/dev/null 2>&1; then
_setup_rocm_ver=$(amd-smi version 2>/dev/null | awk -F'ROCm version: ' \
'NF>1{gsub(/[[:space:]]/,"", $2); print $2; exit}' || true)
fi
if [ -n "$_setup_gfx" ]; then
step "gpu" "AMD ROCm ($_setup_gfx)"
else
step "gpu" "AMD ROCm"
fi
_setup_rocm_root="${ROCM_PATH:-${HIP_PATH:-/opt/rocm}}"
substep "ROCm: $_setup_rocm_root"
[ -n "$_setup_rocm_ver" ] && substep "hipconfig: $_setup_rocm_ver"
[ -n "$_setup_mkt" ] && [ -n "$_setup_gfx" ] && substep "GPU: $_setup_mkt"
elif [ "$(uname -s 2>/dev/null)" = "Darwin" ] && [ "$(uname -m 2>/dev/null)" = "arm64" ]; then
# Apple Silicon: llama.cpp builds with Metal over unified memory, so not a CPU-only host.
step "gpu" "Apple Silicon (Metal, unified memory)"
else
step "gpu" "none (chat-only / GGUF)" "$C_WARN"
substep "Training and GPU inference require an NVIDIA or AMD ROCm GPU."
fi
# ── 7. Prefer prebuilt llama.cpp bundles before any source build path ──
# Nest llama.cpp under $STUDIO_HOME only for real env-overrides; legacy
# default keeps ~/.unsloth/llama.cpp so pre-PR builds are still discovered.
if [ "$_STUDIO_HOME_IS_CUSTOM" = true ]; then
UNSLOTH_HOME="$STUDIO_HOME"
else
UNSLOTH_HOME="$HOME/.unsloth"
fi
mkdir -p "$UNSLOTH_HOME"
LLAMA_CPP_DIR="$UNSLOTH_HOME/llama.cpp"
LLAMA_SERVER_BIN="$LLAMA_CPP_DIR/build/bin/llama-server"
_NEED_LLAMA_SOURCE_BUILD=false
_LLAMA_CPP_DEGRADED=false
_LLAMA_FORCE_COMPILE="${UNSLOTH_LLAMA_FORCE_COMPILE:-0}"
_REQUESTED_LLAMA_TAG="${UNSLOTH_LLAMA_TAG:-${_DEFAULT_LLAMA_TAG}}"
_HOST_SYSTEM="$(uname -s 2>/dev/null || true)"
_HOST_MACHINE="$(uname -m 2>/dev/null || true)"
# Pick the release repo install_llama_prebuilt.py plans against. Every host this
# installer supports now pulls its llama.cpp prebuilt from the unslothai fork: it
# ships the CUDA (Linux x64/arm64, Windows), ROCm (Linux/Windows) and macOS
# bundles, plus the CPU bundles for Linux/Windows on both x86_64 and arm64.
# ggml-org artifacts are no longer used by default.
_HELPER_RELEASE_REPO="unslothai/llama.cpp"
# UNSLOTH_ROCM_GFX_ARCH may be set on a host where no probe fired, so the override
# nested in the AMD-detected branch above never ran and _setup_gfx is still empty.
# Honour it here so the --rocm-gfx forwarding below still sees it
# (install_llama_prebuilt.py reads the same env var as the --rocm-gfx default).
if [ "${_setup_nvidia_usable:-}" != true ] && [ -z "${_setup_gfx:-}" ] && [ -n "${UNSLOTH_ROCM_GFX_ARCH:-}" ]; then
_setup_gfx="${UNSLOTH_ROCM_GFX_ARCH}"
fi
_LLAMA_PR="${UNSLOTH_LLAMA_PR:-}"
_SKIP_PREBUILT_INSTALL=false
_LLAMA_PR_FORCE="${UNSLOTH_LLAMA_PR_FORCE:-${_DEFAULT_LLAMA_PR_FORCE}}"
_LLAMA_SOURCE="${_DEFAULT_LLAMA_SOURCE}"
_LLAMA_SOURCE="${_LLAMA_SOURCE%.git}" # normalize: strip trailing .git
_RESOLVED_SOURCE_URL="$_LLAMA_SOURCE"
_RESOLVED_SOURCE_REF="$_REQUESTED_LLAMA_TAG"
_RESOLVED_SOURCE_REF_KIND="tag"
_RESOLVED_LLAMA_TAG="$_REQUESTED_LLAMA_TAG"
if [ "$_LLAMA_FORCE_COMPILE" = "1" ]; then
_NEED_LLAMA_SOURCE_BUILD=true
_SKIP_PREBUILT_INSTALL=true
fi
# Baked-in PR_FORCE promotes to _LLAMA_PR when user hasn't set one.
if [ -z "$_LLAMA_PR" ] && [ -n "$_LLAMA_PR_FORCE" ] && \
[[ "$_LLAMA_PR_FORCE" =~ ^[0-9]+$ ]] && [ "$_LLAMA_PR_FORCE" -gt 0 ]; then
_LLAMA_PR="$_LLAMA_PR_FORCE"
step "llama.cpp" "baked-in PR_FORCE=$_LLAMA_PR_FORCE" "$C_WARN"
fi
if [ -n "$_LLAMA_PR" ]; then
if ! [[ "$_LLAMA_PR" =~ ^[0-9]+$ ]] || [ "$_LLAMA_PR" -le 0 ]; then
step "llama.cpp" "UNSLOTH_LLAMA_PR=$_LLAMA_PR is not a valid PR number" "$C_ERR"
exit 1
fi
step "llama.cpp" "UNSLOTH_LLAMA_PR=$_LLAMA_PR -- will build from PR head" "$C_WARN"
_RESOLVED_LLAMA_TAG="pr-$_LLAMA_PR"
_RESOLVED_SOURCE_URL="$_LLAMA_SOURCE"
_RESOLVED_SOURCE_REF="pr-$_LLAMA_PR"
_RESOLVED_SOURCE_REF_KIND="pull"
_NEED_LLAMA_SOURCE_BUILD=true
_SKIP_PREBUILT_INSTALL=true
fi
verbose_substep "requested llama.cpp tag: $_REQUESTED_LLAMA_TAG (repo: $_HELPER_RELEASE_REPO)"
# GGUF export's check_llama_cpp() looks for a llama-quantize shim at the root of
# the install dir, but a source build keeps the binary under build/bin/. Mirror
# the source-build-reuse step and create the shim when the reused tree has one
# but no root shim yet. Best-effort: the tree may be read-only (shared/CI cache),
# and under `set -e` a failed ln would otherwise abort an good reuse.
_link_local_llama_quantize_shim() {
if [ -x "$1/build/bin/llama-quantize" ] && [ ! -e "$1/llama-quantize" ]; then
ln -sf build/bin/llama-quantize "$1/llama-quantize" 2>/dev/null || \
substep "could not create llama-quantize shim in linked dir (read-only?); GGUF export may be unavailable"
fi
}
# Accept any layout LlamaCppBackend._layout_candidates() resolves so the flag
# never rejects a tree Studio could actually run: a root-level llama-server (a
# `make` build or a flat-extracted release) or the CMake build/bin/llama-server.
_has_local_llama_server() {
[ -x "$1/llama-server" ] || [ -x "$1/build/bin/llama-server" ]
}
_LOCAL_LLAMA_CPP_LINKED=false
if [ -n "${UNSLOTH_LOCAL_LLAMA_CPP_DIR:-}" ]; then
if [ ! -d "$UNSLOTH_LOCAL_LLAMA_CPP_DIR" ]; then
step "llama.cpp" "UNSLOTH_LOCAL_LLAMA_CPP_DIR does not exist: $UNSLOTH_LOCAL_LLAMA_CPP_DIR" "$C_ERR"
exit 1
fi
_RESOLVED_LOCAL="$(CDPATH= cd -P -- "$UNSLOTH_LOCAL_LLAMA_CPP_DIR" && pwd -P)"
# Canonicalize the install path the same way before comparing: _RESOLVED_LOCAL
# is fully resolved, but LLAMA_CPP_DIR is textual ($UNSLOTH_HOME/llama.cpp). If
# $HOME (or UNSLOTH_HOME) contains a symlink, the two never match even when the
# user pointed the flag at the canonical install itself -- and the rm -rf below
# would then wipe the very tree they asked to reuse. Resolve via the parent so
# this works whether or not the leaf currently exists.
_CANON_LLAMA_CPP_DIR="$LLAMA_CPP_DIR"
_LLAMA_CPP_PARENT="$(dirname "$LLAMA_CPP_DIR")"
if [ -d "$_LLAMA_CPP_PARENT" ]; then
_CANON_LLAMA_CPP_DIR="$(CDPATH= cd -P -- "$_LLAMA_CPP_PARENT" && pwd -P)/$(basename "$LLAMA_CPP_DIR")"
fi
if [ "$_RESOLVED_LOCAL" = "$_CANON_LLAMA_CPP_DIR" ]; then
# Points at the canonical install location itself: never delete-then-link
# it onto itself. If a usable build is already there, reuse it and skip
# both the prebuilt download and the source build -- the prebuilt installer
# uses os.replace() and would otherwise clobber an existing source build at
# this path. If nothing is built there yet, fall through to the normal
# install so it gets built in place exactly as it would without the flag.
if _has_local_llama_server "$LLAMA_CPP_DIR"; then
substep "UNSLOTH_LOCAL_LLAMA_CPP_DIR is the canonical install location and already holds a build; reusing it"
_link_local_llama_quantize_shim "$LLAMA_CPP_DIR"
_LOCAL_LLAMA_CPP_LINKED=true
_NEED_LLAMA_SOURCE_BUILD=false
_SKIP_PREBUILT_INSTALL=true
else
substep "UNSLOTH_LOCAL_LLAMA_CPP_DIR points to the canonical install location with nothing built there yet; running the normal install"
fi
else
# Reusing disables BOTH the prebuilt download and the source build, so the
# linked tree must already contain a runnable llama-server in one of the
# layouts the backend resolves (root-level or build/bin/). Fail clearly
# rather than link an unbuilt or wrong-platform checkout and leave Studio
# with no usable binary.
if ! _has_local_llama_server "$_RESOLVED_LOCAL"; then
step "llama.cpp" "no llama-server under $_RESOLVED_LOCAL (looked for ./llama-server and ./build/bin/llama-server) -- build llama.cpp there first, or drop --with-llama-cpp-dir" "$C_ERR"
exit 1
fi
# A stale link from a previous --with-llama-cpp-dir run isn't Studio-owned
# content; drop it before the ownership check so re-runs stay idempotent
# for a custom UNSLOTH_STUDIO_HOME (the assert would otherwise follow the
# link into the user's dir and reject it as unowned).
[ -L "$LLAMA_CPP_DIR" ] && rm -f "$LLAMA_CPP_DIR"
if [ "$_STUDIO_HOME_IS_CUSTOM" = true ]; then
_assert_studio_owned_or_absent "$LLAMA_CPP_DIR" "llama.cpp install"
fi
rm -rf "$LLAMA_CPP_DIR"
ln -sfn "$_RESOLVED_LOCAL" "$LLAMA_CPP_DIR"
_link_local_llama_quantize_shim "$LLAMA_CPP_DIR"
step "llama.cpp" "linked local directory: $_RESOLVED_LOCAL"
_LOCAL_LLAMA_CPP_LINKED=true
_NEED_LLAMA_SOURCE_BUILD=false
_SKIP_PREBUILT_INSTALL=true
fi
fi
if [ "$_LOCAL_LLAMA_CPP_LINKED" = true ]; then
: # local directory linked above; skip prebuilt install
elif [ "$_LLAMA_FORCE_COMPILE" = "1" ]; then
step "llama.cpp" "UNSLOTH_LLAMA_FORCE_COMPILE=1 -- skipping prebuilt" "$C_WARN"
_NEED_LLAMA_SOURCE_BUILD=true
elif [ "${_SKIP_PREBUILT_INSTALL:-false}" = true ]; then
substep "prebuilt install skipped -- falling back to source build"
else
substep "installing prebuilt llama.cpp..."
if [ -d "$LLAMA_CPP_DIR" ]; then
substep "existing install detected -- validating update"
fi
# why: install_llama_prebuilt.py uses os.replace(), which would displace
# an unrelated $UNSLOTH_STUDIO_HOME/llama.cpp before the source-build
# ownership check below ever runs.
if [ "$_STUDIO_HOME_IS_CUSTOM" = true ]; then
_assert_studio_owned_or_absent "$LLAMA_CPP_DIR" "llama.cpp install"
fi
_PREBUILT_CMD=(
python "$SCRIPT_DIR/install_llama_prebuilt.py"
--install-dir "$LLAMA_CPP_DIR"
--llama-tag "$_REQUESTED_LLAMA_TAG"
--published-repo "$_HELPER_RELEASE_REPO"
)
if [ -n "${UNSLOTH_LLAMA_RELEASE_TAG:-}" ]; then
_PREBUILT_CMD+=(--published-release-tag "$UNSLOTH_LLAMA_RELEASE_TAG")
fi
# Forward the gfx arch resolved above so the per-gfx ROCm prebuilt is picked
# even when the installer's own probe cannot report it (amd-smi-only hosts,
# name-inferred arch). Implies --has-rocm on the installer side.
if [ -n "${_setup_gfx:-}" ]; then
_PREBUILT_CMD+=(--rocm-gfx "$_setup_gfx")
elif [ "$_setup_amd_detected" = true ]; then
# AMD was detected but gfx resolution failed; tell the installer ROCm is
# present so it can still attempt a prebuilt. Mirrors setup.ps1 behaviour.
_PREBUILT_CMD+=(--has-rocm)
fi
_PREBUILT_LOG="$(mktemp)"
set +e
if _is_verbose; then
"${_PREBUILT_CMD[@]}" 2>&1 | tee "$_PREBUILT_LOG"
_PREBUILT_STATUS=${PIPESTATUS[0]}
else
"${_PREBUILT_CMD[@]}" >"$_PREBUILT_LOG" 2>&1
_PREBUILT_STATUS=$?
fi
set -e
if [ "$_PREBUILT_STATUS" -eq 0 ]; then
if grep -Fq "already matches" "$_PREBUILT_LOG"; then
step "llama.cpp" "prebuilt up to date and validated"
else
step "llama.cpp" "prebuilt installed and validated"
fi
if [ "$_STUDIO_HOME_IS_CUSTOM" = true ] && [ -d "$LLAMA_CPP_DIR" ]; then
: > "$LLAMA_CPP_DIR/$_STUDIO_OWNED_MARKER" 2>/dev/null || true
fi
print_installed_llama_prebuilt_release "$LLAMA_CPP_DIR"
verbose_substep "llama.cpp install dir: $LLAMA_CPP_DIR"
rm -f "$_PREBUILT_LOG"
elif [ "$_PREBUILT_STATUS" -eq 3 ]; then
step "llama.cpp" "install blocked by active llama.cpp process" "$C_WARN"
print_llama_error_log "$_PREBUILT_LOG"
rm -f "$_PREBUILT_LOG"
if [ -d "$LLAMA_CPP_DIR" ]; then
substep "existing install was restored"
fi
substep "close Studio or other llama.cpp users and retry"
exit 3
else
step "llama.cpp" "prebuilt install failed (continuing)" "$C_WARN"
print_llama_error_log "$_PREBUILT_LOG"
rm -f "$_PREBUILT_LOG"
if [ -d "$LLAMA_CPP_DIR" ]; then
substep "prebuilt update failed; existing install restored"
fi
substep "falling back to source build"
_NEED_LLAMA_SOURCE_BUILD=true
fi
fi
# Source-built llama.cpp installs do not have the prebuilt metadata used above
# for exact release matching. Reuse a complete local source build unless the
# caller explicitly requested a rebuild or a PR-specific llama.cpp checkout.
if [ "$_NEED_LLAMA_SOURCE_BUILD" = true ] && \
[ "$_LLAMA_FORCE_COMPILE" != "1" ] && \
[ -z "$_LLAMA_PR" ] && \
[ -x "$LLAMA_CPP_DIR/build/bin/llama-server" ] && \
[ -x "$LLAMA_CPP_DIR/build/bin/llama-quantize" ]; then
step "llama.cpp" "existing source build found; skipping rebuild"
ln -sf build/bin/llama-quantize "$LLAMA_CPP_DIR/llama-quantize"
if [ "$_STUDIO_HOME_IS_CUSTOM" = true ]; then
: > "$LLAMA_CPP_DIR/$_STUDIO_OWNED_MARKER" 2>/dev/null || true
fi
_NEED_LLAMA_SOURCE_BUILD=false
fi
# ── 8. WSL: pre-install GGUF build dependencies for fallback source builds ──
# On WSL, sudo requires a password and can't be entered during GGUF export
# (runs in a non-interactive subprocess). Install build deps here instead.
if [ "$_NEED_LLAMA_SOURCE_BUILD" = true ] && grep -qi microsoft /proc/version 2>/dev/null; then
_GGUF_DEPS="pciutils build-essential cmake curl git libcurl4-openssl-dev"
apt-get update -y >/dev/null 2>&1 || true
apt-get install -y $_GGUF_DEPS >/dev/null 2>&1 || true
_STILL_MISSING=""
for _pkg in $_GGUF_DEPS; do
case "$_pkg" in
build-essential) command -v gcc >/dev/null 2>&1 || _STILL_MISSING="$_STILL_MISSING $_pkg" ;;
pciutils) command -v lspci >/dev/null 2>&1 || _STILL_MISSING="$_STILL_MISSING $_pkg" ;;
libcurl4-openssl-dev) command -v curl-config >/dev/null 2>&1 || _STILL_MISSING="$_STILL_MISSING $_pkg" ;;
*) command -v "$_pkg" >/dev/null 2>&1 || _STILL_MISSING="$_STILL_MISSING $_pkg" ;;
esac
done
_STILL_MISSING=$(echo "$_STILL_MISSING" | sed 's/^ *//')
if [ -z "$_STILL_MISSING" ]; then
step "gguf deps" "installed"
elif command -v sudo >/dev/null 2>&1; then
step "gguf deps" "sudo required for: $_STILL_MISSING" "$C_WARN"
printf " %-15s" ""
printf "accept? [Y/n] "
if [ -r /dev/tty ]; then
read -r REPLY </dev/tty || REPLY="y"
else
REPLY="y"
fi
case "$REPLY" in
[nN]*)
substep "skipped -- run manually:"
substep "sudo apt-get install -y $_STILL_MISSING"
_SKIP_GGUF_BUILD=true
;;
*)
sudo apt-get update -y
sudo apt-get install -y $_STILL_MISSING
step "gguf deps" "installed"
;;
esac
else
step "gguf deps" "missing (no sudo) -- install manually:" "$C_WARN"
substep "apt-get install -y $_STILL_MISSING"
_SKIP_GGUF_BUILD=true
fi
fi
# ── 9. Build llama.cpp binaries for GGUF inference + export when prebuilt install fails ──
# Builds at ~/.unsloth/llama.cpp — a single shared location under the user's
# home directory. This is used by both the inference server and the GGUF
# export pipeline (unsloth-zoo).
# - llama-server: for GGUF model inference
# - llama-quantize: for GGUF export quantization (symlinked to root for check_llama_cpp())
if [ "$_NEED_LLAMA_SOURCE_BUILD" = false ]; then
:
elif [ "${_SKIP_GGUF_BUILD:-}" = true ]; then
step "llama.cpp" "skipped (missing build deps)" "$C_WARN"
[ -f "$LLAMA_SERVER_BIN" ] || _LLAMA_CPP_DEGRADED=true
else
{
if ! command -v cmake &>/dev/null; then
step "llama.cpp" "skipped (cmake not found)" "$C_WARN"
[ -f "$LLAMA_SERVER_BIN" ] || _LLAMA_CPP_DEGRADED=true
elif ! command -v git &>/dev/null; then
step "llama.cpp" "skipped (git not found)" "$C_WARN"
[ -f "$LLAMA_SERVER_BIN" ] || _LLAMA_CPP_DEGRADED=true
else
if [ -z "$_LLAMA_PR" ]; then
_RESOLVED_SOURCE_URL="$_LLAMA_SOURCE"
if [ "$_LLAMA_FORCE_COMPILE" = "1" ]; then
if [ "$_REQUESTED_LLAMA_TAG" = "latest" ]; then
_RESOLVED_SOURCE_REF="${UNSLOTH_LLAMA_FORCE_COMPILE_REF:-${_DEFAULT_LLAMA_FORCE_COMPILE_REF}}"
_RESOLVED_SOURCE_REF_KIND="branch"
else
_RESOLVED_SOURCE_REF="$_REQUESTED_LLAMA_TAG"
_RESOLVED_SOURCE_REF_KIND="tag"
fi
elif [ "$_REQUESTED_LLAMA_TAG" = "latest" ]; then
_RESOLVE_TAG_ARGS=(--resolve-llama-tag latest --published-repo "ggml-org/llama.cpp" --output-format json)
set +e
_RESOLVE_TAG_JSON="$(python "$SCRIPT_DIR/install_llama_prebuilt.py" "${_RESOLVE_TAG_ARGS[@]}" 2>/dev/null)"
_RESOLVE_TAG_STATUS=$?
set -e
if [ "$_RESOLVE_TAG_STATUS" -eq 0 ] && [ -n "${_RESOLVE_TAG_JSON:-}" ]; then
_RESOLVED_SOURCE_REF="$(
printf '%s' "$_RESOLVE_TAG_JSON" | python -c 'import json,sys; print(json.load(sys.stdin).get("llama_tag",""))' 2>/dev/null || true
)"
else
_RESOLVED_SOURCE_REF=""
fi
if [ -z "$_RESOLVED_SOURCE_REF" ]; then
_RESOLVED_SOURCE_REF="latest"
fi
_RESOLVED_SOURCE_REF_KIND="tag"
else
_RESOLVED_SOURCE_REF="$_REQUESTED_LLAMA_TAG"
_RESOLVED_SOURCE_REF_KIND="tag"
fi
if [ -z "$_RESOLVED_SOURCE_URL" ]; then
_RESOLVED_SOURCE_URL="$_LLAMA_SOURCE"
fi
if [ -z "$_RESOLVED_SOURCE_REF" ]; then
_RESOLVED_SOURCE_REF="$_REQUESTED_LLAMA_TAG"
fi
fi
verbose_substep "source build repo: $_RESOLVED_SOURCE_URL"
verbose_substep "source build ref: ${_RESOLVED_SOURCE_REF:-latest} (${_RESOLVED_SOURCE_REF_KIND})"
BUILD_OK=true
mkdir -p "$(dirname "$LLAMA_CPP_DIR")"
_BUILD_TMP="${LLAMA_CPP_DIR}.build.$$"
rm -rf "$_BUILD_TMP"
if [ -n "$_LLAMA_PR" ]; then
run_quiet_no_exit "clone llama.cpp" \
git clone --depth 1 "${_LLAMA_SOURCE}.git" "$_BUILD_TMP" || BUILD_OK=false
if [ "$BUILD_OK" = true ]; then
run_quiet_no_exit "fetch PR #$_LLAMA_PR" \
git -C "$_BUILD_TMP" fetch --depth 1 origin "pull/$_LLAMA_PR/head:pr-$_LLAMA_PR" || BUILD_OK=false
fi
if [ "$BUILD_OK" = true ]; then
run_quiet_no_exit "checkout PR #$_LLAMA_PR" \
git -C "$_BUILD_TMP" checkout "pr-$_LLAMA_PR" || BUILD_OK=false
fi
elif [ "$_RESOLVED_SOURCE_REF_KIND" = "pull" ] && [ -n "$_RESOLVED_SOURCE_REF" ]; then
run_quiet_no_exit "clone llama.cpp" \
git clone --depth 1 "${_RESOLVED_SOURCE_URL}.git" "$_BUILD_TMP" || BUILD_OK=false
if [ "$BUILD_OK" = true ]; then
run_quiet_no_exit "fetch source PR ref" \
git -C "$_BUILD_TMP" fetch --depth 1 origin "$_RESOLVED_SOURCE_REF" || BUILD_OK=false
fi
if [ "$BUILD_OK" = true ]; then
run_quiet_no_exit "checkout source PR ref" \
git -C "$_BUILD_TMP" checkout -B unsloth-llama-build FETCH_HEAD || BUILD_OK=false
fi
elif [ "$_RESOLVED_SOURCE_REF_KIND" = "commit" ] && [ -n "$_RESOLVED_SOURCE_REF" ]; then
run_quiet_no_exit "clone llama.cpp" \
git clone --depth 1 "${_RESOLVED_SOURCE_URL}.git" "$_BUILD_TMP" || BUILD_OK=false
if [ "$BUILD_OK" = true ]; then
run_quiet_no_exit "fetch source commit" \
git -C "$_BUILD_TMP" fetch --depth 1 origin "$_RESOLVED_SOURCE_REF" || BUILD_OK=false
fi
if [ "$BUILD_OK" = true ]; then
run_quiet_no_exit "checkout source commit" \
git -C "$_BUILD_TMP" checkout -B unsloth-llama-build FETCH_HEAD || BUILD_OK=false
fi
else
_CLONE_ARGS=(git clone --depth 1)
if [ "$_RESOLVED_SOURCE_REF" != "latest" ] && [ -n "$_RESOLVED_SOURCE_REF" ]; then
_CLONE_ARGS+=(--branch "$_RESOLVED_SOURCE_REF")
fi
_CLONE_ARGS+=("${_RESOLVED_SOURCE_URL}.git" "$_BUILD_TMP")
run_quiet_no_exit "clone llama.cpp" \
"${_CLONE_ARGS[@]}" || BUILD_OK=false
fi
if [ "$BUILD_OK" = true ]; then
# Set Release explicitly (llama.cpp only defaults to it on non-MSVC/Xcode).
CMAKE_ARGS="-DCMAKE_BUILD_TYPE=Release -DLLAMA_BUILD_TESTS=OFF -DLLAMA_BUILD_EXAMPLES=OFF -DLLAMA_BUILD_SERVER=ON -DGGML_NATIVE=ON"
_TRY_METAL_CPU_FALLBACK=false
_HOST_SYSTEM="$(uname -s 2>/dev/null || true)"
_HOST_MACHINE="$(uname -m 2>/dev/null || true)"
_IS_MACOS_ARM64=false
if [ "$_HOST_SYSTEM" = "Darwin" ] && { [ "$_HOST_MACHINE" = "arm64" ] || [ "$_HOST_MACHINE" = "aarch64" ]; }; then
_IS_MACOS_ARM64=true
fi
# macOS: pin a low deployment target so the source build loads on
# older macOS too (else a macOS 26 host stamps minos=26). Set before
# CPU_FALLBACK_CMAKE_ARGS copies CMAKE_ARGS so both paths inherit it.
if [ "$_HOST_SYSTEM" = "Darwin" ]; then
_MACOS_DEPLOYMENT_TARGET="${UNSLOTH_MACOS_DEPLOYMENT_TARGET:-13.3}"
CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_OSX_DEPLOYMENT_TARGET=${_MACOS_DEPLOYMENT_TARGET}"
export MACOSX_DEPLOYMENT_TARGET="${_MACOS_DEPLOYMENT_TARGET}"
fi
if command -v ccache &>/dev/null; then
CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DCMAKE_CUDA_COMPILER_LAUNCHER=ccache"
fi
CPU_FALLBACK_CMAKE_ARGS="$CMAKE_ARGS"
GPU_BACKEND=""
NVCC_PATH=""
# Gate the CUDA toolkit search on an actually-usable NVIDIA GPU
# (_setup_nvidia_usable, computed in the GPU summary block above;
# already false when hidden via CUDA_VISIBLE_DEVICES=""/-1).
# A CUDA toolkit alone (CPU-only build container, leftover packages)
# is not proof of a GPU: building with -DGGML_CUDA=ON there yields a
# binary that fails at runtime, so fall through to the CPU build.
if [ "$_setup_nvidia_usable" = true ]; then
if command -v nvcc &>/dev/null; then
NVCC_PATH="$(command -v nvcc)"
GPU_BACKEND="cuda"
elif [ -x /usr/local/cuda/bin/nvcc ]; then
NVCC_PATH="/usr/local/cuda/bin/nvcc"
export PATH="/usr/local/cuda/bin:$PATH"
GPU_BACKEND="cuda"
elif ls /usr/local/cuda-*/bin/nvcc &>/dev/null 2>&1; then
# Pick the newest cuda-XX.X directory
NVCC_PATH="$(ls -d /usr/local/cuda-*/bin/nvcc 2>/dev/null | sort -V | tail -1)"
export PATH="$(dirname "$NVCC_PATH"):$PATH"
GPU_BACKEND="cuda"
fi
fi
# Check for ROCm (AMD) only if CUDA was not already selected, and
# only when an AMD GPU was actually detected (_setup_amd_detected).
# hipcc presence alone (HIP SDK, no GPU) must not select a HIP build.
# NVIDIA-usable hosts never build HIP (defense in depth: the AMD
# probes above are already skipped when NVIDIA is usable).
ROCM_HIPCC=""
if [ -z "$GPU_BACKEND" ] && [ "$_setup_nvidia_usable" != true ] && [ "$_setup_amd_detected" = true ]; then
if command -v hipcc &>/dev/null; then
ROCM_HIPCC="$(command -v hipcc)"
GPU_BACKEND="rocm"
elif [ -x /opt/rocm/bin/hipcc ]; then
ROCM_HIPCC="/opt/rocm/bin/hipcc"
export PATH="/opt/rocm/bin:$PATH"
GPU_BACKEND="rocm"
elif ls /opt/rocm-*/bin/hipcc &>/dev/null 2>&1; then
ROCM_HIPCC="$(ls -d /opt/rocm-*/bin/hipcc 2>/dev/null | sort -V | tail -1)"
export PATH="$(dirname "$ROCM_HIPCC"):$PATH"
GPU_BACKEND="rocm"
fi
fi
_BUILD_DESC="building"
if [ "$_IS_MACOS_ARM64" = true ]; then
# Metal takes precedence on Apple Silicon (CUDA/ROCm not functional on macOS)
_BUILD_DESC="building (Metal)"
CMAKE_ARGS="$CMAKE_ARGS -DGGML_METAL=ON -DGGML_METAL_EMBED_LIBRARY=ON -DGGML_METAL_USE_BF16=ON -DCMAKE_INSTALL_RPATH=@loader_path -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON"
CPU_FALLBACK_CMAKE_ARGS="$CPU_FALLBACK_CMAKE_ARGS -DGGML_METAL=OFF"
_TRY_METAL_CPU_FALLBACK=true
elif [ -n "$NVCC_PATH" ]; then
# Returns "ok|too_old|unknown\nX.Y" on stdout.
_NVCC_CHECK="$(_nvcc_meets_llama_minimum "$NVCC_PATH")"
_NVCC_STATUS="$(printf '%s\n' "$_NVCC_CHECK" | sed -n '1p')"
_NVCC_VER="$(printf '%s\n' "$_NVCC_CHECK" | sed -n '2p')"
if [ "$_NVCC_STATUS" = "too_old" ]; then
substep "CUDA toolkit $_NVCC_VER is below llama.cpp minimum (12.4)." "$C_ERR"
substep "install a newer CUDA toolkit: https://developer.nvidia.com/cuda-toolkit-archive" "$C_WARN"
substep "falling back to CPU llama.cpp build for this run." "$C_WARN"
NVCC_PATH=""
GPU_BACKEND=""
_BUILD_DESC="building (CPU, CUDA toolkit < 12.4)"
else
_DRIVER_MAX_CUDA="$(_cuda_driver_max_version)"
_CUDA_TOOLKIT_ALLOWED=true
if [ -n "$_NVCC_VER" ] && [ -n "$_DRIVER_MAX_CUDA" ] && \
_cuda_toolkit_major_gt_driver "$_NVCC_VER" "$_DRIVER_MAX_CUDA"; then
_BLOCKED_NVCC_VER="$_NVCC_VER"
if _ALT_NVCC_CHECK="$(_cuda_find_compatible_nvcc_for_driver "$_DRIVER_MAX_CUDA" "$NVCC_PATH")"; then
NVCC_PATH="$(printf '%s\n' "$_ALT_NVCC_CHECK" | sed -n '1p')"
_NVCC_VER="$(printf '%s\n' "$_ALT_NVCC_CHECK" | sed -n '2p')"
GPU_BACKEND="cuda"
export PATH="$(dirname "$NVCC_PATH"):$PATH"
substep "CUDA Toolkit $_BLOCKED_NVCC_VER is a major-version mismatch with driver CUDA $_DRIVER_MAX_CUDA; using compatible CUDA Toolkit $_NVCC_VER at $NVCC_PATH." "$C_WARN"
else
_print_cuda_driver_toolkit_mismatch "$_NVCC_VER" "$_DRIVER_MAX_CUDA"
substep "falling back to CPU llama.cpp build for this run." "$C_WARN"
NVCC_PATH=""
GPU_BACKEND=""
_BUILD_DESC="building (CPU, CUDA toolkit major > driver)"
_CUDA_TOOLKIT_ALLOWED=false
fi
fi
if [ "$_CUDA_TOOLKIT_ALLOWED" = true ]; then
# Resolve the arch list before committing to a CUDA build;
# an empty list means CPU instead of a PTX-only binary (#5854).
_raw_caps=""
# Resolve nvidia-smi as _setup_has_usable_nvidia_gpu does
# (PATH, then /usr/bin); `command -v` alone would miss an
# off-PATH binary and wrongly drop a CUDA host to CPU.
_smi_bin=""
if command -v nvidia-smi >/dev/null 2>&1; then
_smi_bin="nvidia-smi"
elif [ -x "/usr/bin/nvidia-smi" ]; then
_smi_bin="/usr/bin/nvidia-smi"
fi
if [ -n "$_smi_bin" ]; then
_raw_caps=$(_setup_run_smi "$_smi_bin" --query-gpu=compute_cap --format=csv,noheader 2>/dev/null || true)
fi
CUDA_ARCHS="$(_resolve_cuda_archs "$_raw_caps" "${UNSLOTH_LLAMA_CUDA_ARCHS:-}")"
if [ -n "$CUDA_ARCHS" ]; then
CMAKE_ARGS="$CMAKE_ARGS -DGGML_CUDA=ON -DCMAKE_CUDA_ARCHITECTURES=${CUDA_ARCHS}"
CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_CUDA_FLAGS=--threads=0"
_BUILD_DESC="building (CUDA, sm_${CUDA_ARCHS//;/+sm_})"
# Allow a host gcc/clang newer than nvcc's whitelist (else a fresh
# toolkit aborts with "unsupported GNU version"); via env to avoid word-splitting.
export NVCC_PREPEND_FLAGS="${NVCC_PREPEND_FLAGS:+$NVCC_PREPEND_FLAGS }-allow-unsupported-compiler"
else
# No detectable arch: build CPU (CMAKE_ARGS has no
# -DGGML_CUDA=ON yet, so clearing GPU_BACKEND yields CPU).
substep "could not detect a CUDA compute capability; building CPU llama.cpp instead of a PTX-only binary (set UNSLOTH_LLAMA_CUDA_ARCHS, e.g. \"120\", to force a CUDA build)." "$C_WARN"
GPU_BACKEND=""
_BUILD_DESC="building (CPU, CUDA arch undetectable)"
fi
fi
fi
elif [ "$GPU_BACKEND" = "rocm" ]; then
# Resolve hipcc symlinks to find the real ROCm root
_HIPCC_REAL="$(readlink -f "$ROCM_HIPCC" 2>/dev/null || printf '%s' "$ROCM_HIPCC")"
ROCM_ROOT=""
if command -v hipconfig &>/dev/null; then
ROCM_ROOT="$(hipconfig -R 2>/dev/null || true)"
fi
if [ -z "$ROCM_ROOT" ]; then
ROCM_ROOT="$(cd "$(dirname "$_HIPCC_REAL")/.." 2>/dev/null && pwd)"
fi
_BUILD_DESC="building (ROCm)"
CMAKE_ARGS="$CMAKE_ARGS -DGGML_HIP=ON"
# ROCm 7.x ships clang-20 which on Ubuntu 24.04+ defaults to the
# highest-numbered gcc lib dir (/usr/lib/gcc/x86_64-linux-gnu/14/)
# which contains runtime objects but NOT C++ headers, causing:
# fatal error: 'cstdlib' file not found
# Find the newest gcc install dir that actually has both the
# runtime dir AND /usr/include/c++/<ver> headers, then pass it
# to clang via --gcc-install-dir so HIP builds succeed.
_GCC_INSTALL_DIR=""
_gcc_pm="$(gcc -print-multiarch 2>/dev/null)"
case "$_gcc_pm" in
*-linux-gnu*) _GCC_MULTIARCH="$_gcc_pm" ;;
*) _GCC_MULTIARCH="$(uname -m)-linux-gnu" ;;
esac
for _gcc_ver in 14 13 12 11; do
if [ -d "/usr/lib/gcc/$_GCC_MULTIARCH/$_gcc_ver/include" ] && \
[ -d "/usr/include/c++/$_gcc_ver" ]; then
_GCC_INSTALL_DIR="/usr/lib/gcc/$_GCC_MULTIARCH/$_gcc_ver"
break
fi
done
if [ -n "$_GCC_INSTALL_DIR" ]; then
CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_HIP_FLAGS=--gcc-install-dir=\"$_GCC_INSTALL_DIR\""
substep "ROCm HIP gcc install dir: $_GCC_INSTALL_DIR"
fi
export ROCM_PATH="$ROCM_ROOT"
export HIP_PATH="$ROCM_ROOT"
# Use upstream-recommended HIP compiler (not legacy hipcc-as-CXX)
if command -v hipconfig &>/dev/null; then
_HIP_CLANG_DIR="$(hipconfig -l 2>/dev/null || true)"
[ -n "$_HIP_CLANG_DIR" ] && export HIPCXX="$_HIP_CLANG_DIR/clang"
fi
# Detect AMD GPU architecture (gfx target)
GPU_TARGETS=""
if command -v rocminfo &>/dev/null; then
_gfx_list=$(rocminfo 2>/dev/null | grep -oE 'gfx[0-9]{2,4}[a-z]?' | sort -u || true)
_valid_gfx=""
for _gfx in $_gfx_list; do
if [[ "$_gfx" =~ ^gfx[0-9]{2,4}[a-z]?$ ]]; then
# Drop bare family-level targets (gfx10, gfx11, gfx12, ...)
# when a specific sibling is present in the same list.
# rocminfo on ROCm 6.1+ emits both the specific GPU and
# the LLVM generic family line (e.g. gfx1100 alongside
# gfx11-generic), and the outer grep above captures the
# bare family prefix from the generic line. Passing that
# bare prefix to -DGPU_TARGETS breaks the HIP/llama.cpp
# build because clang only accepts specific gfxNNN ids.
# No real AMD GPU has a 2-digit gfx id, so this filter
# can only ever drop family prefixes, never real targets.
if [[ "$_gfx" =~ ^gfx[0-9]{2}$ ]] \
&& echo "$_gfx_list" | grep -qE "^${_gfx}[0-9][0-9a-z]?$"; then
continue
fi
_valid_gfx="${_valid_gfx}${_valid_gfx:+;}$_gfx"
fi
done
[ -n "$_valid_gfx" ] && GPU_TARGETS="$_valid_gfx"
fi
if [ -n "$GPU_TARGETS" ]; then
CMAKE_ARGS="$CMAKE_ARGS -DGPU_TARGETS=${GPU_TARGETS}"
_BUILD_DESC="building (ROCm, ${GPU_TARGETS//;/+})"
fi
elif [ -d /usr/local/cuda ] || _setup_run_smi nvidia-smi &>/dev/null; then
_BUILD_DESC="building (CPU, CUDA driver found but nvcc missing)"
elif [ -d /opt/rocm ] || command -v rocm-smi &>/dev/null; then
_BUILD_DESC="building (CPU, ROCm driver found but hipcc missing)"
else
_BUILD_DESC="building (CPU)"
fi
substep "$_BUILD_DESC..."
NCPU=$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 4)
CMAKE_GENERATOR_ARGS=""
if command -v ninja &>/dev/null; then
CMAKE_GENERATOR_ARGS="-G Ninja"
fi
# GPU label for the CPU-fallback message: Metal, else GPU_BACKEND
# (cuda/rocm). Empty on a bare CPU build (nothing to fall back from).
_gpu_fallback_label() {
if [ "$_TRY_METAL_CPU_FALLBACK" = true ]; then
echo "Metal"
elif [ -n "$GPU_BACKEND" ]; then
printf '%s' "$GPU_BACKEND" | tr '[:lower:]' '[:upper:]'
fi
}
if ! run_quiet_no_exit "cmake llama.cpp" cmake $CMAKE_GENERATOR_ARGS -S "$_BUILD_TMP" -B "$_BUILD_TMP/build" $CMAKE_ARGS; then
_FB_LABEL="$(_gpu_fallback_label)"
if [ -n "$_FB_LABEL" ]; then
_TRY_METAL_CPU_FALLBACK=false
substep "$_FB_LABEL configure failed; retrying CPU build..." "$C_WARN"
rm -rf "$_BUILD_TMP/build"
if run_quiet_no_exit "cmake llama.cpp (cpu fallback)" cmake $CMAKE_GENERATOR_ARGS -S "$_BUILD_TMP" -B "$_BUILD_TMP/build" $CPU_FALLBACK_CMAKE_ARGS; then
_BUILD_DESC="building (CPU fallback after $_FB_LABEL configure failed)"
# Now configured for CPU; clear GPU_BACKEND so a later
# build-step failure won't re-enter fallback on this config.
GPU_BACKEND=""
else
BUILD_OK=false
fi
else
BUILD_OK=false
fi
fi
fi
if [ "$BUILD_OK" = true ]; then
if ! run_quiet_no_exit "build llama-server" cmake --build "$_BUILD_TMP/build" --config Release --target llama-server -j"$NCPU"; then
_FB_LABEL="$(_gpu_fallback_label)"
if [ -n "$_FB_LABEL" ]; then
_TRY_METAL_CPU_FALLBACK=false
substep "$_FB_LABEL build failed; retrying CPU build..." "$C_WARN"
rm -rf "$_BUILD_TMP/build"
if run_quiet_no_exit "cmake llama.cpp (cpu fallback)" cmake $CMAKE_GENERATOR_ARGS -S "$_BUILD_TMP" -B "$_BUILD_TMP/build" $CPU_FALLBACK_CMAKE_ARGS; then
_BUILD_DESC="building (CPU fallback after $_FB_LABEL build failed)"
GPU_BACKEND=""
run_quiet_no_exit "build llama-server (cpu fallback)" cmake --build "$_BUILD_TMP/build" --config Release --target llama-server -j"$NCPU" || BUILD_OK=false
else
BUILD_OK=false
fi
else
BUILD_OK=false
fi
fi
fi
if [ "$BUILD_OK" = true ]; then
run_quiet_no_exit "build llama-quantize" cmake --build "$_BUILD_TMP/build" --config Release --target llama-quantize -j"$NCPU" || true
# Best-effort: the DiffusionGemma visual server (an example target, present
# on llama.cpp PR #24423). No-op when the diffusion example is not configured.
run_quiet_no_exit "build diffusion visual server" cmake --build "$_BUILD_TMP/build" --config Release --target llama-diffusion-gemma-visual-server -j"$NCPU" || true
fi
# Swap only after build succeeds -- preserves existing install on failure
if [ "$BUILD_OK" = true ]; then
_assert_studio_owned_or_absent "$LLAMA_CPP_DIR" "llama.cpp install"
rm -rf "$LLAMA_CPP_DIR"
mv "$_BUILD_TMP" "$LLAMA_CPP_DIR"
: > "$LLAMA_CPP_DIR/$_STUDIO_OWNED_MARKER" 2>/dev/null || true
# Symlink to llama.cpp root -- check_llama_cpp() looks for the binary there
QUANTIZE_BIN="$LLAMA_CPP_DIR/build/bin/llama-quantize"
if [ -f "$QUANTIZE_BIN" ]; then
ln -sf build/bin/llama-quantize "$LLAMA_CPP_DIR/llama-quantize"
fi
# DiffusionGemma visual server, if it was built (PR #24423): link next to
# llama-server so Studio serves DiffusionGemma GGUFs without DG_VISUAL_BIN.
if [ -f "$LLAMA_CPP_DIR/build/bin/llama-diffusion-gemma-visual-server" ]; then
ln -sf build/bin/llama-diffusion-gemma-visual-server "$LLAMA_CPP_DIR/llama-diffusion-gemma-visual-server"
fi
else
rm -rf "$_BUILD_TMP"
fi
if [ "$BUILD_OK" = true ] && [ -f "$LLAMA_SERVER_BIN" ]; then
step "llama.cpp" "built"
[ -f "$LLAMA_CPP_DIR/llama-quantize" ] && step "llama-quantize" "built"
elif [ "$BUILD_OK" = true ]; then
step "llama.cpp" "binary not found after build" "$C_WARN"
_LLAMA_CPP_DEGRADED=true
else
step "llama.cpp" "build failed" "$C_ERR"
[ -f "$LLAMA_SERVER_BIN" ] || _LLAMA_CPP_DEGRADED=true
fi
fi
}
fi # end _SKIP_GGUF_BUILD check
# ── arm64 Linux GPU: CPU prebuilt as a last resort ──
# An arm64 Linux GPU host source-builds for the GPU above. If that produced no
# binary, install the fork's arm64 CPU prebuilt (app-<tag>-linux-arm64-cpu.tar.gz)
# instead of leaving the host without llama.cpp. --cpu-fallback drops the GPU
# attributes so the CPU bundle is selected rather than re-attempting CUDA.
if [ "$_LLAMA_CPP_DEGRADED" = true ] \
&& [ "$_HOST_SYSTEM" = "Linux" ] \
&& { [ "$_HOST_MACHINE" = "aarch64" ] || [ "$_HOST_MACHINE" = "arm64" ]; }; then
substep "GPU source build unavailable; trying arm64 CPU prebuilt..."
_ARM64_CPU_CMD=(
python "$SCRIPT_DIR/install_llama_prebuilt.py"
--install-dir "$LLAMA_CPP_DIR"
--llama-tag "$_REQUESTED_LLAMA_TAG"
--published-repo "unslothai/llama.cpp"
--cpu-fallback
)
# Trust the installer's exit code: it validates the server before exiting 0,
# the same signal the primary prebuilt path above relies on.
if run_quiet_no_exit "arm64 CPU prebuilt" "${_ARM64_CPU_CMD[@]}"; then
step "llama.cpp" "arm64 CPU prebuilt installed (GPU build unavailable)" "$C_WARN"
_LLAMA_CPP_DEGRADED=false
print_installed_llama_prebuilt_release "$LLAMA_CPP_DIR"
fi
fi
# ── Footer ──
if [ "$_LLAMA_ONLY" = "1" ]; then
echo ""
printf " ${C_DIM}%s${C_RST}\n" "$RULE"
if [ "$_LLAMA_CPP_DEGRADED" = true ]; then
printf " ${C_WARN}%s${C_RST}\n" "llama.cpp update finished (limited: llama.cpp unavailable)"
else
printf " ${C_TITLE}%s${C_RST}\n" "llama.cpp update finished"
fi
printf " ${C_DIM}%s${C_RST}\n" "$RULE"
elif [ "$IS_COLAB" = true ]; then
echo ""
printf " ${C_DIM}%s${C_RST}\n" "$RULE"
if [ "$_LLAMA_CPP_DEGRADED" = true ]; then
printf " ${C_WARN}%s${C_RST}\n" "Unsloth Studio Setup Complete (limited: llama.cpp unavailable)"
else
printf " ${C_TITLE}%s${C_RST}\n" "Unsloth Studio Setup Complete"
fi
printf " ${C_DIM}%s${C_RST}\n" "$RULE"
substep "from colab import start"
substep "start()"
else
printf " ${C_DIM}%s${C_RST}\n" "$RULE"
if [ "$_LLAMA_CPP_DEGRADED" = true ]; then
printf " ${C_WARN}%s${C_RST}\n" "Unsloth Studio Installed (limited: llama.cpp unavailable)"
else
printf " ${C_TITLE}%s${C_RST}\n" "Unsloth Studio Installed"
fi
printf " ${C_DIM}%s${C_RST}\n" "$RULE"
if [ "$_LLAMA_CPP_DEGRADED" = true ]; then
printf " ${C_DIM}%-15s${C_WARN}%s${C_RST}\n" "launch" "unsloth studio -p 8888"
else
printf " ${C_DIM}%-15s${C_OK}%s${C_RST}\n" "launch" "unsloth studio -p 8888"
fi
printf " ${C_DIM}%-15s%s${C_RST}\n" "" "(add -H 0.0.0.0 to allow network / cloud access)"
printf " ${C_DIM}%-15s%s${C_RST}\n" "" "(add --secure for a public Cloudflare HTTPS link; anyone with the API key can run code)"
fi
echo ""
# When called from install.sh (SKIP_STUDIO_BASE=1), exit non-zero so the
# installer can report the GGUF failure after finishing PATH/shortcut setup.
# When called directly via 'unsloth studio update', keep the install
# successful -- the footer above already reports the limitation and Studio
# is still usable for non-GGUF workflows.
if [ "$_LLAMA_CPP_DEGRADED" = true ] && [ "${SKIP_STUDIO_BASE:-0}" = "1" ]; then
exit 1
fi