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Restore dependency-depth build scheduling - #64615
Merged
Jake Bailey (jakebailey) merged 2 commits intoOct 13, 2026
Merged
Jake Bailey (jakebailey) merged 2 commits into
Jake Bailey (jakebailey) merged 2 commits into
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Parallel builders were consuming reporting order, which can leave a worker waiting on a dependency while independent projects stay queued. Project-scoped builds must retain their selected project set, and reporting must remain stable regardless of worker scheduling.
The scheduling regression needs coverage of full, selected-project, and references-only builds with two workers. The larger execution-mode matrix repeats unrelated behavior and obscures that purpose.
Jake Bailey (jakebailey)
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Isabel Duan (iisaduan)
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a balanced review from Copilot
October 3, 2026 03:28
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Copilot review overview
🟢 Approval recommended
The focused fix preserves dependency and reporting behavior, with regression coverage for all three build scopes and no identified blockers.
Review effort: Balanced
Findings: None
What changed in this PR
Restores dependency-depth scheduling after the Build Orchestrator API regression, reducing builder idle time while preserving reporting order.
Changes:
- Schedules full and selected builds by dependency depth.
- Adds regression coverage for full builds, selected projects, and references-only builds.
| File | Description |
|---|---|
tsc/internal/execute/build/orchestrator.go |
Applies dependency-depth scheduling to the selected build tasks. |
tsc/internal/execute/build/graph_test.go |
Verifies concurrent scheduling, reporting order, and selected outputs. |
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Jake Bailey (jakebailey)
requested review from
Andrew Branch (andrewbranch) and
Wesley Wigham (weswigham)
October 7, 2026 19:38
Ryan Cavanaugh (RyanCavanaugh)
approved these changes
Oct 13, 2026
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#64158 regressed #64220