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Resolve Outlines cache from the LM Studio home environment #375

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Merged
will-lms merged 2 commits into from
Sep 25, 2026
Merged

Resolve Outlines cache from the LM Studio home environment #375

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dc19164
Resolve Outlines cache from the launcher-provided LM Studio home
will-lms Sep 24, 2026
c571a91
Remove the Outlines cache README addition
will-lms Sep 25, 2026
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21 changes: 7 additions & 14 deletions mlx_engine/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,13 @@
from pathlib import Path
import os

# Outlines can open its cache during import, so configure it before loading dependencies.
_lmstudio_home = os.environ.get("LMS_LMSTUDIO_HOME")
if _lmstudio_home and not os.environ.get("OUTLINES_CACHE_DIR"):
os.environ["OUTLINES_CACHE_DIR"] = str(
Path(_lmstudio_home) / ".internal" / "outlines"
)

from .utils.disable_hf_download import patch_huggingface_hub
from .utils.register_models import register_models
from .utils.logger import setup_logging
Expand All @@ -37,17 +44,3 @@
patch_huggingface_hub()
register_models()
setup_logging()


def _set_outlines_cache_dir(cache_dir: Path | str):
"""
Set the cache dir for Outlines.

Outlines reads the OUTLINES_CACHE_DIR environment variable to
determine where to read/write its cache files
"""
cache_dir = Path(cache_dir).expanduser().resolve()
os.environ["OUTLINES_CACHE_DIR"] = str(cache_dir)


_set_outlines_cache_dir(Path("~/.cache/lm-studio/.internal/outlines"))
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