feat(hooks): 関数長スケーリング検出 lint 追加 (順位 48) + Bundle b 登録

[aloekun]

Summary

Summary by CodeRabbit

新機能

• Rust コード用の lint ツールで、50行を超える長い関数を検出する機能を追加しました。コード品質チェックが強化され、関数が過度に長い場合に自動的に検出・報告されるようになります。

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 07b7f531-051b-46f3-8a1c-e86d9bd9d8ea

📥 Commits

Reviewing files that changed from the base of the PR and between 6ab23c4 and 0adbcd7.

📒 Files selected for processing (1)

• src/hooks-post-tool-comment-lint-rust/src/main.rs

📝 Walkthrough

Walkthrough

PR は関数長検出機能を Rust lint hook に追加し、ドキュメント内の実行優先度表を更新します。既存のコメント検証ロジックと並行して、50 行を超える関数をフラグします。

Changes

関数長検出機能の追加

Layer / File(s)	Summary
計画・タスク記載 docs/todo.md	「関数長スケーリング検出 oxlint rule」タスクを削除、rate-limit retry の CronCreate 化、review 完了待ちの CronCreate 化、config 拡張などを優先順位順に追加。
詳細タスク定義 docs/todo5.md	parse_findings error-path test infra、rate-limit retry CronCreate 化、review 完了 CronCreate 化、monitor.toml 拡張、comment-lint hook テスト拡充などの実装計画・完了基準・詰まり箇所を記載。
定数・構造定義 src/hooks-post-tool-comment-lint-rust/src/main.rs (L91–94)	MAX_FUNCTION_LINES = 50 を定数として追加、関数長検出の閾値を定義。
コア検出ロジック src/hooks-post-tool-comment-lint-rust/src/main.rs (L277–342)	find_function_length_violations で FunctionMetric.length > MAX_FUNCTION_LINES を検出し、line_filter の重複を考慮。function_too_long_violation で完全な LintViolation ペイロード（型・重大度・位置・メッセージ・理由・修正・例）を構築。
ヘルパー機能 src/hooks-post-tool-comment-lint-rust/src/main.rs (L535–565)	extract_file_path で ToolInput からファイルパスを抽出、collect_all_violations でコメント検証と関数長検証を統合、emit_violations_feedback で JSON 形式にシリアライズして出力。
メイン統合 src/hooks-post-tool-comment-lint-rust/src/main.rs (L567–605)	main から extract_file_path で抽出、line_filter 計算後に collect_all_violations で一括収集、違反がある場合は emit_violations_feedback で出力（従来のコメント専用パスを置き換え）。
テスト拡張 src/hooks-post-tool-comment-lint-rust/src/main.rs (L972–979, L1151–1249)	span_overlaps_ranges テストに範囲包含ロジックを更新、make_function_with_lines を追加、関数長検出の閾値前後・フィルター外での除外・タッチ時のフラグ・空フィルター時のスキップ・最大違反数制限・JSON フィールド必須化などをカバーする新規テスト套。

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Possibly related PRs

• PR #104：同じ comment-lint Rust hook（src/.../main.rs）を修正し、行フィルター対応のリント検証（変更行スコープでの違反計算）を導入・拡張しており、関連性が高い。
• PR #99：同じ Rust comment-lint hook を PR #99 で導入し、本 PR がそれを関数長検出で拡張（src/hooks-post-tool-comment-lint-rust/src/main.rs の新規定数・ヘルパー関数を追加）しており、直接関連。
• PR #103：同じ hooks-post-tool-comment-lint-rust クレート内で関数長検出・メトリクスロジックを追加・修正（関数長測定と違反・出力関連）しており、直接関連。

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	PR タイトルは、Rust 関数長 lint の追加（順位 48）と Bundle b 登録という、changeset の主要な変更内容を明確に要約しており、変更の意図を正確に表現している。
Docstring Coverage	✅ Passed	Docstring coverage is 82.61% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[coderabbitai]

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@src/hooks-post-tool-comment-lint-rust/src/main.rs`:
- Around line 549-551: The combined violations list currently calls
find_violations(...) and then extends it with
find_function_length_violations(...), but each function independently stops at
MAX_VIOLATIONS so the merged result can exceed MAX_VIOLATIONS; change the merge
logic in the block that creates violations (the variable named violations built
from find_violations and find_function_length_violations) to enforce a global
cap by collecting results incrementally and truncating to MAX_VIOLATIONS (e.g.,
call find_violations, then call find_function_length_violations and only take up
to (MAX_VIOLATIONS - violations.len()) from it, or extend then truncate
violations.truncate(MAX_VIOLATIONS)), ensuring the final returned violations
vector never exceeds MAX_VIOLATIONS.
- Around line 297-299: The overlap check currently uses the full function span
(f.line_start..f.line_end) so signature-only edits still trigger touch-trigger;
change the check in the line_filter block to test overlap against the function
body span (e.g., use f.body_start and f.body_end or the equivalent body range
fields) when calling span_overlaps_ranges, and ensure you handle the case where
the body range may be missing/None by falling back to skipping the function (or
the desired behavior) instead of using the full function span.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 1c50e327-0e33-4b63-b4f8-934a4110dcfa

📥 Commits

Reviewing files that changed from the base of the PR and between 868e32d and 6ab23c4.

📒 Files selected for processing (3)

• docs/todo.md
• docs/todo5.md
• src/hooks-post-tool-comment-lint-rust/src/main.rs