unsloth/studio
DoubleMathew e7e02230e3
Fix /recommended-folders 500 on unreadable model directories (Python 3.12+) (#5523)
* Fix /recommended-folders 500 on unreadable model dirs (Python 3.12+)

get_recommended_folders probed candidate paths with a bare
Path(p).is_dir(). On Python <= 3.11 that returned False for an
unreadable path, but on Python 3.12+ is_dir() propagates
PermissionError (EACCES) instead, so a stock root-owned ollama
install at /usr/share/ollama/.ollama/models (mode 700) made the
endpoint 500 through the entire middleware stack.

Move the directory-accessibility check into a stdlib-only helper
utils.fs_access.is_accessible_dir that swallows OSError and keeps
the existing os.access(R_OK|X_OK) filter, restoring the pre-3.12
"unreadable path is simply not a candidate" behaviour. Add a
dependency-free regression test.

* Address review: inline helper, no new file, cover all probe sites

- Drop studio/backend/utils/fs_access.py and the cross-module import;
  the guard is now a small module-level _safe_is_dir() in models.py
  (also moots the import-placement / ModuleNotFoundError feedback,
  since there is no longer an import to misplace).
- Apply _safe_is_dir to every system-location probe with the
  vulnerable bare is_dir() pattern, not just /recommended-folders:
  _build_browse_allowlist._add and the /browse-folders _add_sug
  helper, so the same Python 3.12+ PermissionError cannot 500 those
  endpoints either. Each site keeps its exact prior semantics
  (recommended-folders retains its os.access(R_OK|X_OK) filter);
  the only behavioural change is "no longer crashes".
- Rewrite the regression test to extract the real _safe_is_dir from
  source via ast, keeping it dependency-free without standing up the
  FastAPI app, and correct the mode-000 case.

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Roland Tannous <115670425+rolandtannous@users.noreply.github.com>
2026-05-18 00:16:14 +04:00
..
backend Fix /recommended-folders 500 on unreadable model directories (Python 3.12+) (#5523) 2026-05-18 00:16:14 +04:00
frontend Studio composer action pill styling (#5522) 2026-05-17 22:19:19 +04:00
src-tauri Harden Tauri release flow (#5341) 2026-05-12 20:30:20 -07:00
__init__.py Final cleanup 2026-03-12 18:28:04 +00:00
install_llama_prebuilt.py Fix Linux prebuilt installs for branch-based llama.cpp releases (#5493) 2026-05-17 07:16:55 -07:00
install_python_stack.py studio: skip flash-attn install on Blackwell GPUs (sm_100+) (#5420) 2026-05-14 18:13:50 +04:00
LICENSE.AGPL-3.0 Add AGPL-3.0 license to studio folder 2026-03-09 19:36:25 +00:00
setup.bat Final cleanup 2026-03-12 18:28:04 +00:00
setup.ps1 CI: scope GITHUB_TOKEN permissions, add MLX CI, unblock ~60 skipped tests (#5312) 2026-05-11 03:19:13 -07:00
setup.sh Route CPU-only Linux x86_64 to ggml-org/llama.cpp prebuilts (#5302) 2026-05-05 23:22:22 -07:00
Unsloth_Studio_Colab.ipynb studio: add --local to setup.sh + overlay unsloth-zoo from git main (#5252) 2026-05-02 08:51:56 +04:00