[None][fix] generate nanobind stubs for submodules

[ixlmar]

Description

This change ensures that stubs for all submodules of tensorrt_llm.bindings are generated (see https://nanobind.readthedocs.io/en/latest/typing.html#recursive-stub-generation).

Test Coverage

PR Checklist

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Summary by CodeRabbit

• Chores
  • Updated stub generation process for Linux build environments.
  • Improved build cache cleanup when switching binding types, ensuring more comprehensive directory removal for better build consistency.

[ixlmar]

/bot run --skip-test

[coderabbitai]

📝 Walkthrough

Walkthrough

The build script modifications include adding the -r flag to nanobind stubgen invocation for recursive stub generation and expanding cache cleanup to delete the entire bindings directory instead of just a single file when switching binding types.

Changes

Cohort / File(s)	Summary
Build script stub and cache handling scripts/build_wheel.py	Added -r flag to nanobind.stubgen invocation for recursive stub generation; changed cache cleanup to delete entire bindings directory and related pybind directory instead of single bindings.pyi file when switching binding types

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Pre-merge checks and finishing touches

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Description Check	⚠️ Warning	The PR description includes a Description section that adequately explains the change and references the relevant nanobind documentation for recursive stub generation. However, the Test Coverage section is entirely empty with no information provided about what tests validate these changes, despite the template explicitly requesting this information. The PR Checklist is present but incomplete, with most items unchecked. While the core description is present and sufficient, the complete absence of test coverage information represents a significant gap in the required template structure.	The Test Coverage section must be completed by providing information about what tests safeguard these build script changes, or explicitly explaining why test coverage validation does not apply to this particular modification. This ensures the PR follows the repository's documentation standards and helps reviewers understand the testing scope.
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	You can run @coderabbitai generate docstrings to improve docstring coverage.

✅ Passed checks (1 passed)

Check name	Status	Explanation
Title Check	✅ Passed	The pull request title "[None][fix] generate nanobind stubs for submodules" is directly aligned with the main objective and the primary code change. The raw summary shows that the key modification is adding the -r flag to the nanobind.stubgen invocation (nanobind.stubgen -m bindings -r -O .), which enables recursive stub generation for submodules. The title accurately captures this intent and describes the main change in clear, specific terms without vague language. The title is concise and would allow a teammate scanning the repository history to immediately understand that the change is about enabling nanobind stub generation for submodules.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[tensorrt-cicd]

PR_Github #22063 [ run ] triggered by Bot. Commit: 6d89c0f

[tensorrt-cicd]

PR_Github #22063 [ run ] completed with state SUCCESS. Commit: 6d89c0f
/LLM/main/L0_MergeRequest_PR pipeline #16636 (Partly Tested) completed with status: 'SUCCESS'

[ixlmar]

/bot skip --comment "Only build script changes, passed sanity checks"

[tensorrt-cicd]

PR_Github #22141 [ skip ] triggered by Bot. Commit: 6d89c0f

[tensorrt-cicd]

PR_Github #22141 [ skip ] completed with state SUCCESS. Commit: 6d89c0f
Skipping testing for commit 6d89c0f

[ixlmar]

/bot run --skip-test

[tensorrt-cicd]

PR_Github #22150 [ run ] triggered by Bot. Commit: 93fb76c

[tensorrt-cicd]

PR_Github #22150 [ run ] completed with state SUCCESS. Commit: 93fb76c
/LLM/main/L0_MergeRequest_PR pipeline #16703 (Partly Tested) completed with status: 'SUCCESS'

[ixlmar]

/bot skip --comment "Only build script changes, passed sanity checks"

[tensorrt-cicd]

PR_Github #22173 [ skip ] triggered by Bot. Commit: 93fb76c

[tensorrt-cicd]

PR_Github #22173 [ skip ] completed with state SUCCESS. Commit: 93fb76c
Skipping testing for commit 93fb76c