Reenable fail-fast in merge queues #62856
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Pull request overview
This PR re-enables fail-fast behavior specifically for merge queue runs to optimize CI execution time. When a test fails in a merge queue, it indicates either a platform flake or a runtime merge conflict, making it inefficient to continue running remaining jobs. The change uses a conditional expression to enable fail-fast only for merge_group events while keeping it disabled for regular pull requests and pushes, allowing developers to see all test failures during normal development.
Key Changes
- Modified the
fail-faststrategy to conditionally enable based on the GitHub event type - Fail-fast is now enabled (
true) only formerge_groupevents - Fail-fast remains disabled (
false) for regular CI events likepull_requestandpush
sheetalkamat
approved these changes
Dec 8, 2025
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If a job fails in a merge queue, it's either a platform flake, or a runtime merge conflict. Don't bother running all jobs and let it quit out as early as possible.