Add an all type in pyproject.tml to include diffusion support

[Kangyan-Zhou]

Motivation

Modifications

Accuracy Tests

Benchmarking and Profiling

Checklist

• Format your code according to the Format code with pre-commit.
• Add unit tests according to the Run and add unit tests.
• Update documentation according to Write documentations.
• Provide accuracy and speed benchmark results according to Test the accuracy and Benchmark the speed.
• Follow the SGLang code style guidance.

Review Process

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2. Get approvals from CODEOWNERS and other reviewers.
3. Trigger CI tests with comments or contact authorized users to do so.
   • /tag-run-ci-label, /rerun-failed-ci, /tag-and-rerun-ci
4. After green CI and required approvals, ask Merge Oncalls to merge.

[gemini-code-assist]

Summary of Changes

Hello @Kangyan-Zhou, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces a new 'all' extra dependency group within the pyproject.toml file. This addition aims to streamline the installation process for users who require a full suite of SGLang functionalities, specifically bundling support for checkpoint-engine, diffusion, and tracing into a single, convenient optional dependency.

Highlights

• New 'all' dependency group: A new optional dependency group named 'all' has been added to pyproject.toml.
• Diffusion support inclusion: This new 'all' group includes sglang[diffusion], sglang[checkpoint-engine], and sglang[tracing], making it easier to install a comprehensive set of SGLang features, including diffusion support.

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[gemini-code-assist]

Code Review

This pull request adds a convenient [all] optional dependency group to pyproject.toml, which bundles the checkpoint-engine, diffusion, and tracing extras. This is a good addition for user convenience. My review includes one suggestion to ensure the checkpoint-engine extra is complete and aligns with the project's documentation, which is important for users installing via the new [all] group. As a minor note, there's a typo in the pull request title (.tml instead of .toml).

[gemini-code-assist]

The [checkpoint-engine] extra installs checkpoint-engine==0.1.2. However, the documentation in docs/advanced_features/checkpoint_engine.md consistently recommends installing 'checkpoint-engine[p2p]' to enable all features, particularly for multi-node setups. To ensure users of the new [all] extra get the complete functionality, I recommend updating the checkpoint-engine optional dependency on line 86 to checkpoint-engine = ["checkpoint-engine[p2p]==0.1.2"].