Revert broken sgl_kernel exclusion patterns in paths-filter

[Kangyan-Zhou]

Summary

This PR reverts commit cd31540 ("Improve Per Commit Test job filtering for sglang-kernel (#18054)") which introduced broken exclusion patterns in the sgl_kernel filter.

Problem

The exclusion patterns added in #18054 caused dorny/paths-filter to incorrectly mark sgl_kernel=true for all PRs, even those that don't touch any sgl-kernel/ files.

For example, PR #17706 only modified:

• python/sglang/srt/layers/radix_attention.py
• python/sglang/srt/model_executor/piecewise_cuda_graph_runner.py
• python/sglang/srt/models/qwen3_next.py
• test/registered/models/test_qwen3_next_models_pcg.py

But the CI run incorrectly detected sgl_kernel=true and triggered unnecessary kernel builds/tests.

Root Cause

The dorny/paths-filter action uses predicate-quantifier: 'some' by default, meaning if ANY pattern matches, the filter returns true.

The exclusion patterns like !sgl-kernel/pyproject_cpu.toml are interpreted as: "match any file that is NOT sgl-kernel/pyproject_cpu.toml".

This means python/sglang/srt/layers/radix_attention.py matches the exclusion pattern (because it's not that file), causing the entire sgl_kernel filter to return true.

From the CI logs:

##[group]Filter sgl_kernel = true
Matching files:
python/sglang/srt/layers/radix_attention.py [modified]
python/sglang/srt/model_executor/piecewise_cuda_graph_runner.py [modified]

Solution

Revert to the simple sgl-kernel/** pattern which correctly matches only files under the sgl-kernel/ directory.

If we want to exclude certain files in the future, we should use one of these approaches:

1. picomatch negation syntax: sgl-kernel/!(pyproject_cpu.toml|README.md)
2. predicate-quantifier: 'every': Requires restructuring all filters
3. Explicit include patterns: List only the directories/files we want to match

References:

• dorny/paths-filter Issue #184
• dorny/paths-filter README on predicate-quantifier

Test plan

• Verify that PRs not touching sgl-kernel/ no longer trigger kernel builds
• Verify that PRs touching sgl-kernel/ still correctly trigger kernel builds

🤖 Generated with Claude Code

[gemini-code-assist]

Note

Gemini is unable to generate a summary for this pull request due to the file types involved not being currently supported.