unsloth/studio/backend/hub/services/models/cache_inventory.py
Daniel Han d6d8b8b1a6 Fix the lost-generation proof set, the settle timeout and the hub inventory's diffusion gates
Seven fixes from the latest review round on the Images page and the hub cache inventory.

Images page:
- The lost-POST settle path built its "already seen" gallery id set inside the catch, after
  the request failed. By then the earlier runs of the same batch had already prepended their
  records, so run 2 could accept run 1's image as proof that its own request reached the
  backend. The set is now captured once before the first POST and grows with every record the
  batch produces.
- settleLostGeneration fell out of its SETTLE_MAX_MS loop and returned normally, so a wedged
  generation was counted as done and the next run started against a busy backend. It now
  throws on timeout.
- Restoring a recipe cleared the ControlNet selection but left the workflow tab and the
  init / mask / reference images pointing at whatever was loaded, so the next Generate
  conditioned on an unrelated image. It now clears all of them and returns to Create.
- The download plan omitted the adapter selection the load itself bakes in. A baked LoRA
  forces the dense build path, so the plan described a different file set than the load that
  followed and the rest was pulled inline, outside the download manager. Both now derive the
  list from one helper.

Hub cache inventory:
- A download for a repo an Images or Video load is staging was allowed to start: only the
  llama.cpp loader was consulted. Both diffusion backends already expose loading_repo_ids for
  the delete guard, and the download guard now reads them too.
- A companion-only prefetch (pipeline manifest plus VAE and text encoder, no transformer)
  passed the snapshot-partial check, since every file its manifest expected did arrive, and
  was advertised as on-device although from_pretrained cannot load it.
- The single-file flag never reached the picker through the hub inventory path, so a
  checkpoint-only diffusion repo read as a full pipeline and failed after the handoff.

The two pipeline-shape helpers now live in hub/utils/inventory_scan.py so /api/models/cached
and the hub inventory classify the same repos the same way.
2026-07-27 02:45:24 +00:00

736 lines
29 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-only
# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved. See /studio/LICENSE.AGPL-3.0
"""Cached model inventory."""
from __future__ import annotations
import json
import asyncio
import threading
import time
from collections import OrderedDict
from pathlib import Path
from typing import NamedTuple, Optional
from fastapi import HTTPException
from loggers import get_logger
from hub.schemas.inventory import ModelFormat
from hub.utils import inventory_scan as hf_cache_scan
from hub.utils import download_registry
from hub.utils.snapshot_filters import (
snapshot_download_blob_hashes,
snapshot_download_size,
)
from hub.services.models.common import (
_capabilities_for_format,
_classify_non_gguf_model_format,
_gguf_variant_state_summary,
_is_adapter_weight_name,
_is_checkpoint_weight_name,
_is_gguf_filename,
_is_main_gguf_filename,
_is_mmproj_filename,
_is_transformers_safetensors_weight_name,
_local_inventory_id,
_runtime_for_format,
)
# Imported at module scope (not inside the per-repo scan loop) so a broken
# import surfaces at startup instead of silently emptying the inventory: the
# scan loop swallows per-repo exceptions and would drop every repo. Lives under
# ``utils`` (not ``utils.models``) to avoid the eager model-config/checkpoint
# imports in ``utils/models/__init__.py``.
from utils.hidden_models import is_hidden_model
logger = get_logger(__name__)
_repo_size_cache: "OrderedDict[tuple[str, str, str], tuple[int, frozenset[str], float]]" = (
OrderedDict()
)
_repo_size_neg_cache: "OrderedDict[tuple[str, str, str], float]" = OrderedDict()
_REPO_SIZE_CACHE_MAX = 256
_REPO_SIZE_POS_TTL = 60.0
_REPO_SIZE_NEG_TTL = 60.0
_MODEL_METADATA_TIMEOUT_SECONDS = 5.0
_repo_size_cache_lock = threading.Lock()
# Identity for a cached file with no HF blob (Windows without Developer Mode: hf
# moves the blob into snapshots/ and leaves blobs/ empty).
_LOCAL_SIZE_IDENTITY_PREFIX = "size:"
def get_repo_snapshot_metadata_cached(
repo_id: str, hf_token: Optional[str] = None
) -> tuple[int, frozenset[str]]:
token_fp = hf_cache_scan.token_fingerprint(hf_token)
cache_key = (repo_id, token_fp, "snapshot")
with _repo_size_cache_lock:
cached = _repo_size_cache.get(cache_key)
if cached is not None:
total, blob_hashes, ts = cached
if (time.monotonic() - ts) < _REPO_SIZE_POS_TTL:
_repo_size_cache.move_to_end(cache_key)
return total, blob_hashes
del _repo_size_cache[cache_key]
neg_ts = _repo_size_neg_cache.get(cache_key)
if neg_ts is not None and (time.monotonic() - neg_ts) < _REPO_SIZE_NEG_TTL:
return 0, frozenset()
try:
from huggingface_hub import HfApi
info = HfApi(token = hf_token).model_info(
repo_id,
files_metadata = True,
timeout = _MODEL_METADATA_TIMEOUT_SECONDS,
)
total = snapshot_download_size(info.siblings)
blob_hashes = snapshot_download_blob_hashes(info.siblings)
except Exception as e:
logger.warning(
"Failed to get repo size for %s: %s",
repo_id,
download_registry.scrub_secrets(str(e), hf_token = hf_token),
)
with _repo_size_cache_lock:
_repo_size_neg_cache[cache_key] = time.monotonic()
_repo_size_neg_cache.move_to_end(cache_key)
while len(_repo_size_neg_cache) > _REPO_SIZE_CACHE_MAX:
_repo_size_neg_cache.popitem(last = False)
return 0, frozenset()
with _repo_size_cache_lock:
_repo_size_cache[cache_key] = (total, blob_hashes, time.monotonic())
_repo_size_cache.move_to_end(cache_key)
_repo_size_neg_cache.pop(cache_key, None)
while len(_repo_size_cache) > _REPO_SIZE_CACHE_MAX:
_repo_size_cache.popitem(last = False)
return total, blob_hashes
def all_hf_cache_scans():
return hf_cache_scan.all_hf_cache_scans()
def _repo_gguf_size_bytes(repo_info) -> int:
"""Sum primary GGUF blob sizes across revisions, deduped by blob path (HF hardlinks shared blobs); mmproj is excluded so a vision-adapter-only repo isn't classed as GGUF."""
unique_blobs: dict[str, int] = {}
for revision in repo_info.revisions:
rev_id = getattr(revision, "commit_hash", None) or str(id(revision))
for f in revision.files:
if _is_main_gguf_filename(f.file_name):
blob_path = getattr(f, "blob_path", None)
size = f.size_on_disk or 0
if blob_path:
unique_blobs[str(blob_path)] = size
else:
unique_blobs[f"{rev_id}:{f.file_name}"] = size
return sum(unique_blobs.values())
def _repo_has_gguf_files(repo_info) -> bool:
return _repo_gguf_size_bytes(repo_info) > 0
def _blob_mtime(file_obj) -> float:
ts = getattr(file_obj, "blob_last_modified", None)
if isinstance(ts, (int, float)) and ts > 0:
return float(ts)
blob_path = getattr(file_obj, "blob_path", None)
if blob_path:
try:
return float(Path(blob_path).stat().st_mtime)
except OSError:
pass
return 0.0
def _repo_gguf_last_modified(repo_info) -> float:
latest = 0.0
for revision in repo_info.revisions:
for f in revision.files:
if _is_main_gguf_filename(f.file_name):
latest = max(latest, _blob_mtime(f))
return latest
def _repo_has_mmproj(repo_info) -> bool:
# An mmproj file only makes a repo vision-capable when it is an actual GGUF
# projector; a non-GGUF sidecar (e.g. mmproj_config.json) does not, and the
# runtime's projector detection is GGUF-only.
return any(
_is_gguf_filename(f.file_name) and _is_mmproj_filename(f.file_name)
for revision in repo_info.revisions
for f in revision.files
)
def _cached_repo_file_name(file_obj) -> str:
file_path = getattr(file_obj, "file_path", None)
if file_path:
try:
path = Path(file_path)
parts = path.parts
snapshots_idx = max(i for i, part in enumerate(parts) if part == "snapshots")
if len(parts) > snapshots_idx + 2:
return Path(*parts[snapshots_idx + 2 :]).as_posix()
except Exception:
pass
return str(getattr(file_obj, "file_name", "")).replace("\\", "/")
def _is_real_cache_blob(blob: Optional[Path], repo_dir: Optional[Path]) -> bool:
"""True only for a real cache blob at ``<repo_dir>/blobs/<etag>``.
A no-symlink ``snapshots/`` file (name is the filename, not an etag) or a
repo's own ``blobs/`` subdir is not the cache blob store.
"""
if blob is None or repo_dir is None:
return False
try:
return blob.parent.resolve(strict = False) == (repo_dir / "blobs").resolve(strict = False)
except OSError:
return False
def _cached_blob_hash(blob_path, repo_path = None) -> Optional[str]:
"""The cache blob hash (etag) for a cached file, or None when there is no blob.
Only a real blob under the repo's ``blobs/`` dir has name == hash; a moved
no-symlink ``snapshots/`` file is "no blob", so the caller uses a size identity.
"""
path = Path(blob_path)
repo_dir = Path(repo_path) if repo_path is not None else None
return path.name if _is_real_cache_blob(path, repo_dir) else None
def local_size_identity(size: int) -> str:
"""Identity for a cached file whose blob hash is unknowable: its size.
Re-hashing multi-GB GGUFs on the inventory hot path is not viable, and a
``size:`` token never collides with a hex hash.
"""
return f"{_LOCAL_SIZE_IDENTITY_PREFIX}{int(size)}"
def _repo_gguf_blob_map(repo_info, *, include_companions: bool = False) -> dict[str, set[str]]:
"""Map each cached GGUF file's repo-relative name to the SET of its local
identities across all revisions.
An identity is the file's blob hash, or a size identity when the cache holds no
blob (Windows without Developer Mode). BOTH old and new revision blobs are kept
(a set), so the diff treats the file as current when the remote ``main`` blob is
in any cached revision. Main GGUF only by default; update checks opt into
companions to compare a shared mmproj/MTP blob too.
"""
blob_map: dict[str, set[str]] = {}
repo_path = getattr(repo_info, "repo_path", None)
for revision in repo_info.revisions:
for f in revision.files:
if include_companions:
if not _is_gguf_filename(f.file_name):
continue
elif not _is_main_gguf_filename(f.file_name):
continue
blob_path = getattr(f, "blob_path", None)
if not blob_path:
continue
name = _cached_repo_file_name(f)
identity = _cached_blob_hash(blob_path, repo_path)
if identity is None:
size = int(getattr(f, "size_on_disk", 0) or 0)
if size <= 0:
continue
identity = local_size_identity(size)
blob_map.setdefault(name, set()).add(identity)
return blob_map
def _prefer_cache_row(candidate: dict, existing: Optional[dict]) -> bool:
if existing is None:
return True
candidate_partial = bool(candidate.get("partial"))
existing_partial = bool(existing.get("partial"))
if candidate_partial != existing_partial:
return not candidate_partial
candidate_active = bool(candidate.get("active_cache"))
existing_active = bool(existing.get("active_cache"))
if candidate_active != existing_active:
return candidate_active
return int(candidate.get("size_bytes") or 0) > int(existing.get("size_bytes") or 0)
def _cache_inventory_fields(
repo_id: str,
model_format: ModelFormat,
*,
repo_path: Optional[Path] = None,
snapshot_path: Optional[Path] = None,
active_hub_cache: Optional[Path] = None,
partial: bool = False,
requires_variant: bool = False,
) -> dict:
load_id = repo_id
active_cache = True
if repo_path is not None:
try:
if active_hub_cache is None:
from utils.hf_cache_settings import get_hf_cache_paths
active_hub_cache = get_hf_cache_paths().hub_cache
active_root = active_hub_cache.resolve(strict = False)
cached_root = repo_path.parent.resolve(strict = False)
if cached_root != active_root:
active_cache = False
load_id = str(snapshot_path or repo_path.resolve(strict = False))
except (OSError, RuntimeError, ValueError):
active_cache = False
load_id = str(snapshot_path or repo_path)
return {
"inventory_id": _local_inventory_id("cache", model_format, repo_id),
"load_id": load_id,
"active_cache": active_cache,
"model_format": model_format,
"runtime": _runtime_for_format(model_format),
"format_variant": None,
"capabilities": _capabilities_for_format(
model_format,
"hf_cache",
partial = partial,
requires_variant = requires_variant,
).model_dump(),
}
def invalidate_hf_cache_scans() -> None:
hf_cache_scan.invalidate_hf_cache_scans()
def _is_hidden_infra_repo(*values: str | None) -> bool:
"""True for infra-only repos (the RAG embedder and the llama.cpp install
validation probe) that are cached as a side effect of Studio itself and are
not usable chat models."""
return is_hidden_model(*values)
def _cached_row_task(repo_info, *, gguf: bool) -> Optional[str]:
"""Pipeline task for a cached row, from the same classifiers the models API uses.
The Images/Video pickers filter On Device rows on this and the chat picker routes a diffusion
pick by it, so a row that arrives without one is dropped from those lists entirely. Imported
lazily (routes.models imports this package) and best-effort: an unreadable repo just has no
task, exactly as before.
"""
try:
from routes.models import _cached_repo_task, _repo_gguf_task
return _repo_gguf_task(repo_info) if gguf else _cached_repo_task(repo_info)
except Exception: # noqa: BLE001 -- a classification failure never hides a row
return None
def _scan_cached_gguf() -> list[dict]:
"""Synchronous HF-cache disk walk for GGUF repos; runs in a worker thread."""
cache_scans = all_hf_cache_scans()
from utils.hf_cache_settings import get_hf_cache_paths
active_hub_cache = get_hf_cache_paths().hub_cache
seen_lower: dict[str, dict] = {}
for hf_cache in cache_scans:
for repo_info in hf_cache.repos:
try:
if str(repo_info.repo_type) != "model":
continue
repo_id = repo_info.repo_id
repo_path = Path(repo_info.repo_path)
snapshot_path = _cached_model_snapshot_path(repo_path)
total_size = _repo_gguf_size_bytes(repo_info)
has_variant_state, variant_state_size = _gguf_variant_state_summary(
repo_id,
hub_cache = repo_path.parent,
)
is_hidden_infra = _is_hidden_infra_repo(
repo_id,
str(repo_path),
str(snapshot_path) if snapshot_path is not None else None,
)
# Hide infra repos unless the user downloaded a variant via
# the Hub; variant state only exists for user downloads.
if is_hidden_infra and not has_variant_state:
continue
if total_size == 0 and not has_variant_state:
continue
partial = hf_cache_scan.is_gguf_repo_partial(
repo_id,
repo_path,
)
if total_size == 0 and not partial:
continue
key = repo_id.lower()
existing = seen_lower.get(key)
last_modified = _repo_gguf_last_modified(repo_info)
row = {
"repo_id": repo_id,
"size_bytes": max(total_size, variant_state_size),
"cache_path": str(repo_info.repo_path),
"task": _cached_row_task(repo_info, gguf = True),
"partial": partial,
# GGUF row-level transport is ambiguous (variants may differ);
# per-variant detail lives on GgufVariantDetail.
"partial_transport": None,
}
last_modified = max(last_modified, (existing or {}).get("last_modified", 0.0))
if last_modified > 0:
row["last_modified"] = last_modified
row.update(
_cache_inventory_fields(
repo_id,
"gguf",
repo_path = repo_path,
snapshot_path = snapshot_path,
active_hub_cache = active_hub_cache,
partial = bool(row["partial"]),
requires_variant = True,
)
)
if _repo_has_mmproj(repo_info):
row["capabilities"]["supports_vision"] = True
# Visible infra variants remain management-only.
if is_hidden_infra:
row["capabilities"]["can_chat"] = False
if _prefer_cache_row(row, existing):
if existing and existing["capabilities"].get("supports_vision"):
row["capabilities"]["supports_vision"] = True
seen_lower[key] = row
else:
if last_modified > existing.get("last_modified", 0.0):
existing["last_modified"] = last_modified
if row["capabilities"].get("supports_vision"):
existing["capabilities"]["supports_vision"] = True
except Exception as e:
repo_label = getattr(repo_info, "repo_id", "<unknown>")
logger.warning(f"Skipping cached GGUF repo {repo_label}: {e}")
continue
return sorted(seen_lower.values(), key = lambda c: c["repo_id"])
async def list_cached_gguf_response(hf_token: Optional[str] = None):
"""List GGUF repos downloaded to HF cache, legacy Unsloth cache, and HF default cache."""
try:
cached = await asyncio.to_thread(_scan_cached_gguf)
return {"cached": cached}
except Exception as e:
logger.error(
"Error listing cached GGUF repos: %s",
download_registry.scrub_secrets(str(e), hf_token = hf_token),
)
raise HTTPException(
status_code = 500,
detail = "Failed to read the local model cache.",
) from e
class _CachedNonGgufPayload(NamedTuple):
size_bytes: int
has_runnable_weights: bool
model_format: ModelFormat
last_modified: float
def _repo_non_gguf_model_payload(repo_info) -> _CachedNonGgufPayload:
all_weight_blobs: dict[str, tuple[int, float]] = {}
adapter_blobs: dict[str, tuple[int, float]] = {}
safetensors_blobs: dict[str, tuple[int, float]] = {}
checkpoint_blobs: dict[str, tuple[int, float]] = {}
has_config = False
has_adapter_config = False
has_adapter_weights = False
has_safetensors = False
has_transformers_safetensors = False
has_checkpoint = False
def _record_blob(
target: dict[str, tuple[int, float]], file_obj, rev_id: str, file_name: str
) -> None:
blob_path = getattr(file_obj, "blob_path", None)
size = int(file_obj.size_on_disk or 0)
key = str(blob_path) if blob_path else f"{rev_id}:{file_name}"
value = (size, _blob_mtime(file_obj))
target[key] = value
all_weight_blobs[key] = value
for revision in repo_info.revisions:
rev_id = getattr(revision, "commit_hash", None) or str(id(revision))
for f in revision.files:
file_name = str(f.file_name)
lower = file_name.lower()
name = lower.replace("\\", "/").rsplit("/", 1)[-1]
if _is_gguf_filename(lower):
continue
if name == "config.json":
has_config = True
continue
if name == "adapter_config.json":
has_adapter_config = True
continue
is_adapter = _is_adapter_weight_name(name)
is_safetensors = name.endswith(".safetensors") and not is_adapter
is_checkpoint = _is_checkpoint_weight_name(name)
if is_adapter:
has_adapter_weights = True
_record_blob(adapter_blobs, f, rev_id, file_name)
if is_safetensors:
has_safetensors = True
if _is_transformers_safetensors_weight_name(name):
has_transformers_safetensors = True
_record_blob(safetensors_blobs, f, rev_id, file_name)
if is_checkpoint:
has_checkpoint = True
_record_blob(checkpoint_blobs, f, rev_id, file_name)
model_format = (
_classify_non_gguf_model_format(
has_config = has_config,
has_adapter_config = has_adapter_config,
has_adapter_weights = has_adapter_weights,
has_safetensors = has_safetensors,
has_transformers_safetensors = has_transformers_safetensors,
has_checkpoint_weights = has_checkpoint,
trusted_hf_cache_repo = True,
)
or "unknown"
)
if model_format == "adapter":
selected_blobs = adapter_blobs
elif model_format == "safetensors":
selected_blobs = safetensors_blobs
elif model_format == "checkpoint":
selected_blobs = checkpoint_blobs
else:
selected_blobs = all_weight_blobs
return _CachedNonGgufPayload(
size_bytes = sum(size for size, _mtime in selected_blobs.values()),
has_runnable_weights = model_format != "unknown",
model_format = model_format,
last_modified = max((mtime for _size, mtime in selected_blobs.values()), default = 0.0),
)
def _cached_model_snapshot_path(repo_path: Path) -> Optional[Path]:
resolved = hf_cache_scan.resolve_hf_cache_realpath(repo_path)
if not resolved:
return None
path = Path(resolved)
return path if path.is_dir() else None
def _read_json_object(path: Path) -> dict:
try:
with open(path, "r", encoding = "utf-8") as f:
data = json.load(f)
return data if isinstance(data, dict) else {}
except Exception:
return {}
def _is_whisper_model_config(config: object) -> bool:
if not isinstance(config, dict):
return False
model_type = config.get("model_type")
if isinstance(model_type, str) and model_type.strip().lower() == "whisper":
return True
architectures = config.get("architectures")
return isinstance(architectures, list) and any(
isinstance(name, str) and name == "WhisperForConditionalGeneration"
for name in architectures
)
def _read_model_card_frontmatter(path: Path) -> dict:
try:
text = path.read_text(encoding = "utf-8")
except Exception:
return {}
lines = text.splitlines()
if not lines or lines[0].strip() != "---":
return {}
body: list[str] = []
for line in lines[1:]:
if line.strip() == "---":
break
body.append(line)
if not body:
return {}
try:
import yaml
data = yaml.safe_load("\n".join(body)) or {}
return data if isinstance(data, dict) else {}
except Exception:
return {}
def _cached_model_local_metadata(repo_path: Path) -> dict:
snapshot = _cached_model_snapshot_path(repo_path)
if snapshot is None:
return {}
result: dict = {}
config = _read_json_object(snapshot / "config.json")
if _is_whisper_model_config(config):
result["_hidden_stt"] = True
quant_method = (
config.get("quantization_config", {}).get("quant_method")
if isinstance(config.get("quantization_config"), dict)
else None
)
if isinstance(quant_method, str) and quant_method.strip():
result["quant_method"] = quant_method.strip()
card = _read_model_card_frontmatter(snapshot / "README.md")
pipeline_tag = card.get("pipeline_tag")
if isinstance(pipeline_tag, str) and pipeline_tag.strip():
result["pipeline_tag"] = pipeline_tag.strip()
library_name = card.get("library_name")
if isinstance(library_name, str) and library_name.strip():
result["library_name"] = library_name.strip()
tags = card.get("tags")
if isinstance(tags, list):
clean_tags = [tag.strip() for tag in tags if isinstance(tag, str) and tag.strip()]
if clean_tags:
result["tags"] = clean_tags
return result
def _scan_cached_models() -> list[dict]:
"""Synchronous HF-cache disk walk for non-GGUF model repos; runs in a worker thread."""
cache_scans = all_hf_cache_scans()
from utils.hf_cache_settings import get_hf_cache_paths
active_hub_cache = get_hf_cache_paths().hub_cache
seen_lower: dict[str, dict] = {}
inspected = 0
skipped_gguf = 0
skipped_no_weights = 0
skipped_stt = 0
for hf_cache in cache_scans:
for repo_info in hf_cache.repos:
inspected += 1
try:
if str(repo_info.repo_type) != "model":
continue
repo_id = repo_info.repo_id
repo_path = Path(repo_info.repo_path)
snapshot_path = _cached_model_snapshot_path(repo_path)
# The non-GGUF embedder has no variant downloads; always hide.
if _is_hidden_infra_repo(
repo_id,
str(repo_path),
str(snapshot_path) if snapshot_path is not None else None,
):
continue
has_main_gguf = _repo_has_gguf_files(repo_info)
payload = _repo_non_gguf_model_payload(repo_info)
if payload.size_bytes == 0:
if has_main_gguf:
skipped_gguf += 1
continue
if not payload.has_runnable_weights:
skipped_no_weights += 1
continue
key = repo_id.lower()
existing = seen_lower.get(key)
local_metadata = _cached_model_local_metadata(repo_path)
if local_metadata.pop("_hidden_stt", False):
skipped_stt += 1
continue
download_partial = hf_cache_scan.is_snapshot_partial(
"model",
repo_id,
repo_path,
)
# A companion-only prefetch (pipeline manifest + VAE / text-encoder but no transformer
# shards, left behind by a GGUF load) passes the download check -- every file its
# manifest expected did arrive -- yet from_pretrained cannot load it. Mark it partial
# so the pickers do not advertise it as on-device, matching /api/models/cached.
companion_only = hf_cache_scan.repo_pipeline_missing_denoiser(repo_info)
snapshot_partial = download_partial or companion_only
row_task = _cached_row_task(repo_info, gguf = False)
row = {
"repo_id": repo_id,
"size_bytes": payload.size_bytes,
"cache_path": str(repo_info.repo_path),
"task": row_task,
"partial": snapshot_partial,
"partial_transport": (
hf_cache_scan.partial_transport_for(
"model",
repo_id,
repo_cache_dir = repo_path,
)
# Only a genuine download partial has a transport; a companion-only
# snapshot arrived intact and has no Resume / Redownload story.
if download_partial
else None
),
# Diffusion repos with no pipeline index load only via from_single_file, so the
# task pickers must not offer them as pipeline loads. Same rule as
# /api/models/cached; without it here, the picker's single_file gate sees
# undefined on every hub-sourced row and lets a checkpoint-only repo through.
"single_file": bool(
row_task is not None
and not hf_cache_scan.repo_has_pipeline_index(repo_info)
),
**local_metadata,
}
last_modified = max(
payload.last_modified,
(existing or {}).get("last_modified", 0.0),
)
if last_modified > 0:
row["last_modified"] = last_modified
row.update(
_cache_inventory_fields(
repo_id,
payload.model_format,
repo_path = repo_path,
snapshot_path = snapshot_path,
active_hub_cache = active_hub_cache,
partial = bool(row["partial"]),
)
)
if _prefer_cache_row(row, existing):
seen_lower[key] = row
elif last_modified > existing.get("last_modified", 0.0):
existing["last_modified"] = last_modified
except Exception as e:
repo_label = getattr(repo_info, "repo_id", "<unknown>")
logger.warning(f"Skipping cached model repo {repo_label}: {e}")
continue
cached = sorted(seen_lower.values(), key = lambda c: c["repo_id"])
logger.info(
"Cached model scan: inspected=%d skipped_gguf=%d skipped_no_weights=%d "
"skipped_stt=%d returned=%d",
inspected,
skipped_gguf,
skipped_no_weights,
skipped_stt,
len(cached),
)
return cached
async def list_cached_models_response(hf_token: Optional[str] = None):
"""List non-GGUF model repos downloaded to HF cache, legacy Unsloth cache, and HF default cache."""
try:
cached = await asyncio.to_thread(_scan_cached_models)
return {"cached": cached}
except Exception as e:
logger.error(
"Error listing cached models: %s",
download_registry.scrub_secrets(str(e), hf_token = hf_token),
)
raise HTTPException(
status_code = 500,
detail = "Failed to read the local model cache.",
) from e