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Split `forgelm/trainer.py` into a sub-package (`_kwargs`, `_runtime`, `_finalize`, `_artifacts`) — deferred until Phase 16 S4 and S8 have landed

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評価

難易度
4/5
見積もり時間
3〜5日
初心者へのやさしさ
18/100
issue の種類
リファクタリング
明瞭さ
おおむね明確
活発さ
活発
技術スタック
python

調査の方向性

Start in forgelm/trainer.py and the _DEFERRED_SPLITS entry in tools/check_module_size.py, then confirm the Phase 16 S4 (#890) and S8 (#894) preconditions have landed. The work is a behaviour-neutral split into a forgelm/trainer/ sub-package, keeping ForgeTrainer and train importable from the old path, with test patch targets retargeted. Done means the module-size check passes without the deferral entry and the deferral row and CHANGELOG entry are updated.

索引モデルが issue の本文から書いたものです。

説明

area: trainer deferred severity: low source: roadmap wave: 4

Deferred work · F-PR29-A1-05: trainer.py · severity Low · cost ~1 day · recorded in docs/roadmap/risks-and-decisions.md:79

Summary

forgelm/trainer.py is a deferred module split: the ForgeTrainer god-object holds TRL kwarg fold-in, OOM/DeepSpeed runtime, artifact finalisation and the compliance / model-card / deployer hand-off in one file; forgelm.trainer.ForgeTrainer and forgelm.trainer.train must stay importable. The module-size guard holds it to a fatal no-growth budget, but nothing pays the debt down until someone takes the split.

Condition or budget

Phase 16 S2, S3, S4 and S8 have all landed (decision C-18: never split ahead of the behaviour steps that change the same file); S4 is #890 and S8 is #894

State today (re-checked 2026-10-09)

1519 code lines against a budget of 1519 at 08f2426 (deferred at 1432, raised five times); no forgelm/trainer/ package exists.

Related

#667 and #668 track how the module-size guard counts lines and accepts budget raises; decide them before relying on a module's budget.

Acceptance criteria

  • The module becomes a sub-package along the recorded seams, behaviour-neutral, with every public name still importable from its current path.
  • Its _DEFERRED_SPLITS entry is removed from tools/check_module_size.py and every resulting module is under the normal ceiling.
  • Test patch targets that named the old module are retargeted to the module that resolves the name at call time (the forgelm/verify.py split found five that silently moved).
  • The row is removed from the deferral table and the CHANGELOG names its ID (the table's removal contract).

Recorded in docs/roadmap/risks-and-decisions.md (read at f94595f) and re-checked against the code on 2026-10-09. The row leaves that table only when the fix is on main, the CHANGELOG names its ID and any promised guard exists.

主要言語
Python
スター
9
フォーク
1
平均マージ
8時間 10分
マージ済み PR(30日)
5

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