CI: Refine PR changed-file filters

[vyasr]

Description

Refines pull-request CI changed-file filters to reduce unrelated test jobs while ensuring changes to each job’s runner and helpers still receive coverage.

Wheel tests

• Split wheel test-runner filters so each runner triggers only its matching job.
• Split package-specific wheel builders according to their downstream artifact dependencies: cuDF additionally runs Dask, and cuDF-Polars runs both Polars jobs.
• Scope ci/utils/get_matrix_values.py to the wheel and cuDF.pandas jobs that invoke it.
• Stop using validate_wheel.sh as a wheel-test trigger because every wheel-build job already executes it.

The shared build_wheel.sh, libcudf builder, and pylibcudf builder remain common triggers because they affect every wheel test path.

Java tests

Split ci/test_packaged_java.sh from Java/Spark JNI build inputs. Its changes still build and test packaged Java artifacts, without starting the unrelated Spark JNI build.

Other test jobs

• Add notebook, cuDF.pandas, third-party integration, and pandas-test runner/helper paths to their owning filters.
• Remove the unused not_cudf_polars group and other negation-only groups. Their consumers’ positive filters already exclude the relevant package paths, so the guards were redundant.

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.

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📥 Commits

Reviewing files that changed from the base of the PR and between c32fa2b and a18cfaa.

📒 Files selected for processing (1)

• .github/workflows/pr.yaml

🚧 Files skipped from review as they are similar to previous changes (1)

• .github/workflows/pr.yaml

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📝 Summary

Summary by CodeRabbit

• CI/CD
  • Improved automated change detection for Java packaging, wheel builds and tests, cuDF Polars, Dask-cuDF, pandas, and integration-test updates.
  • Java builds now run when packaged Java files change.
  • Streaming and Dask-cuDF wheel tests now run for relevant changes, including cuDF wheel updates.
  • CI jobs no longer skip relevant checks when cuDF Polars or Dask-cuDF files are modified.

Walkthrough

The pull request updates .github/workflows/pr.yaml with dedicated changed-file groups and revised job conditions for Java, wheel, Python, pandas, Polars, Dask-cuDF, cuML, and Narwhals tests.

Changes

Workflow trigger refinement

Layer / File(s)	Summary
Change detection groups .github/workflows/pr.yaml	Added dedicated patterns for packaged Java, pandas, notebook, wheel, Dask-cuDF, Polars, and integration-test changes.
Package test routing .github/workflows/pr.yaml	Updated Java and package wheel jobs to use dedicated triggers and shared wheel-builder changes.
Integration condition updates .github/workflows/pr.yaml	Removed exclusions that prevented selected Python, pandas, cuML, Polars, Dask-cuDF, and Narwhals jobs from running for related changes.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to a18cf

This change refines CI changed-file routing to run relevant package and integration tests while reducing unrelated jobs. No current merge-blocking risk is identified.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description directly explains the CI changed-file filter refinements, including wheel, Java, notebook, pandas, and integration-test job changes.
Title check	✅ Passed	The title is concise and accurately summarizes the main change: refining pull-request CI changed-file filters.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

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Inline comments:
In @.github/workflows/pr.yaml:
- Line 705: Update the condition for the wheel-build-dask-cudf job to also
trigger when the test_python_wheels changed-file group is set, while preserving
the existing test_wheel_dask_cudf, test_python_wheel_cudf, and
test_python_wheel_dask_cudf conditions.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Enterprise

Run ID: bd60e05f-31bd-4065-a023-abc067dcaf81

📥 Commits

Reviewing files that changed from the base of the PR and between 86b2a5b and c32fa2b.

📒 Files selected for processing (1)

• .github/workflows/pr.yaml

Included review availability: Your plan provides up to 12 included reviews per hour; 11 remain after this review.

[vyasr]

/merge