fix(ci): exclude test files from PR size classification

[serrrfirat]

Summary

• PR size labels now only count production code changes, excluding test files
• Previously a 1-line production fix with 500 lines of tests would be classified as XL
• Excluded patterns: tests/, *_test.rs, *_tests.rs, *.test.{js,ts,jsx,tsx}, *.spec.{js,ts,jsx,tsx}

Test plan

• Open a PR with mostly test changes and verify the size label reflects only non-test lines

🤖 Generated with Claude Code

[gemini-code-assist]

Code Review

This pull request updates the .github/scripts/pr-labeler.sh script to exclude test files from the pull request size classification logic. A review comment suggests a more robust regex for identifying test files to ensure that directories like __tests__ and standalone test files are correctly captured and excluded.

[gemini-code-assist]

The regex for identifying test files can be simplified and made more robust. The current implementation misses __tests__ directories and standalone test.rs or tests.rs files. Please ensure this updated pattern is applied consistently across all scripts and CI configurations that identify test files to prevent logic divergence, as per the repository's consistency guidelines.

Suggested change

	| select(.filename | test("^tests/|_test\\.rs$|_tests\\.rs$|/tests/|\\.test\\.[jt]sx?$|\\.spec\\.[jt]sx?$") | not)
	| select(.filename | test("(^|/)(__)?tests?(__)?/|(^|[/_])tests?\\.rs$|\\.(test|spec)\\.[jt]sx?$") | not)

References

1. When applying a best practice or logic change in shell scripts, it should be applied consistently across the codebase to avoid partial fixes and maintain synchronization between different scripts or CI/CD pipelines.

[henrypark133]

Review: Exclude test files from PR size classification (Risk: Low)

Clean fix. Adds a jq filter to exclude test files from the PR size calculation:

• ^tests/ directory
• _test.rs / _tests.rs suffixes
• /tests/ subdirectories
• .test.[jt]sx? / .spec.[jt]sx? patterns

Test-heavy PRs will now be classified by their production code size. Sensible change.

LGTM.