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ci: skip native builds for Linux-only test registrations - #13821
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. 📝 WalkthroughWalkthroughChangesRegistry-aware CI routing
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~25 minutes Change: Bug fix Sequence Diagram(s)sequenceDiagram
participant CIWorkflow
participant ChangeAreaDetector
participant TestRegistry
participant TrustedRouter
CIWorkflow->>TestRegistry: Extract base test registry
CIWorkflow->>ChangeAreaDetector: Pass registry base path
ChangeAreaDetector->>TestRegistry: Compare base and head registries
ChangeAreaDetector->>CIWorkflow: Return CI areas
CIWorkflow->>TrustedRouter: Pass registry arguments
TrustedRouter->>ChangeAreaDetector: Route changed paths
Merge Risk: 🟡 Moderate · up to The policy-change regression check does not run its assertions, and certain Git-enabled environments can make the fixture operate outside its temporary repository. Fix both test harness defects before merging. 🚥 Pre-merge checks | ✅ 24 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (24 passed)
Full details: Docstring CoverageExplanation Docstring coverage is 7.14% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 14 functions across 2 files. (1 skipped: 1 unsupported.)
✨ Finishing Touches 💡 1📝 Generate docstrings 💡
🧪 Generate unit tests (beta)
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Actionable comments posted: 2
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@tests/test_ci_change_areas.py`:
- Line 1774: Update the test setup around the target.write_text call so that
when policy_change includes scripts/ci/detect_ci_change_areas.py, the copied
detector remains valid executable Python while still differing as needed;
populate head_files with valid detector content or preserve the existing content
instead of writing "changed\n".
- Line 1738: In the scratch-repository setup, create a single environment based
on os.environ with GIT_DIR, GIT_WORK_TREE, and GIT_INDEX_FILE removed, then pass
it via env= to every Git subprocess, including init, config, add, commit, and
rev-parse, as well as the final Bash invocation using env. Keep cwd=repo and the
existing command behavior unchanged.
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📒 Files selected for processing (3)
.github/workflows/ci.ymlscripts/ci/detect_ci_change_areas.pytests/test_ci_change_areas.py
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This was referenced Sep 23, 2026
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Adding a Linux guard registration to
tests/test-execution.tomlcurrently selects macOS compile admission and Release validation even when native test execution is unchanged. Compare the base and candidate registries and skip native routing only when the differences are confined to Linux guard entries.Native lane edits, mixed app changes, duplicate entries, unsupported schemas, and unavailable base data retain native coverage. Shared Ghostty/Zig build scripts retain their existing routing. The workflow passes the base registry to both ordinary and trusted-base classification.
Validation: the test-only commit failed the CI guard before the implementation. The complete change-area suite passes locally, including real shell execution of normal and trusted-base routing with Linux-only and native registry edits. All 28 Linux routing tests, reusable guard workflow checks, shell syntax, and whitespace checks pass. Regression coverage includes Linux additions/removals, native lane/path/requirements edits, invalid registries, missing history, and mixed app changes. Hosted CI for the final commit remains pending; no app/runtime code changed.
Review follow-up: routing fixtures scrub inherited Git repository/worktree/index overrides. A regression-only commit (4d12030) failed hosted CI before fix 6d3c67c. Optional registry arguments also work with macOS Bash 3.2 under
set -u. The full change-area suite, 28 Linux routing tests, reusable guard workflow checks, and actionlint pass locally. The trusted-base test intentionally keeps candidate detector content invalid to prove it is not executed. Final-head hosted CI is pending.Summary by CodeRabbit