* studio: drop unused max_grad_value schema + route plumbing
The MLX worker hardcodes max_grad_value to 5.0 after PR #5340. The
schema field, frontend payload type, route forwarder, and start_training
kwarg threading were all left in place as a transitional buffer for old
clients. The field is now genuinely unused everywhere except inside the
MLX worker, so the schema, route forwarder, and config-build entries can
go. Pydantic still tolerates older clients that send max_grad_value
because TrainingStartRequest's model_config defaults to extra=ignore.
* [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>
scripts/verify_comment_only_diff.py compares a list of changed files
between two git refs and reports whether each diff is strictly comments
or docstrings.
* .py: parse both revs into AST, strip module / class / function
docstrings, then compare ast.unparse output. Pure Python comments
are discarded by ast.parse by construction, so any post-strip diff
is real code.
* .yml / .yaml: yaml.safe_load both sides and compare the parsed
Python object; if scalar values differ, also strip shell comments
inside any multi-line scalar (i.e. `run: |` script bodies) before
comparing.
Exit code is 0 if every file is comment-only, 1 otherwise. The script
also prints a tight diff snippet for any FAIL line so a reviewer can
spot the real code change at a glance.
This is what I used to gate the trim PRs #5418 (this repo) and #640
(unsloth-zoo). Shipping it under scripts/ so any contributor can
deterministically prove a comment / docstring refactor is truly
comment-only, without manually eyeballing every line of a 4000-line
diff.
Usage:
python scripts/verify_comment_only_diff.py [--base REF] [--head REF] path ...
Defaults: --base origin/main, --head HEAD. Paths are repo-relative.
Smoke test against the squash-merged PR #5418 (a real 3-file pure trim):
git diff --name-only 6994d07f~1..6994d07f \
| xargs python scripts/verify_comment_only_diff.py --base 6994d07f~1 --head 6994d07f
reports OK for all 3 files.
