fix: rollback plan shows new fleet IPs instead of old fleet - #945
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In 'sh1pt scale rollout --rollback <id>', the rollback plan computed 'oldIps' by filtering fleet instances against target.newInstanceIds, so the displayed IPs were the NEW instances being torn down rather than the OLD fleet being restored. The actual rollback action correctly reactivates target.oldInstanceIds (blue-green), so the plan output contradicted what the command did. Extract rollbackPlanIps() which filters against oldInstanceIds and add regression tests covering publicIp, privateIp fallback and the missing-IP placeholder.
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Submitted to ugig.net bounty (c3137a9d) — bug fix PR for sh1pt. |
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Bug
In
sh1pt scale rollout --rollback <id>, the rollback plan displayedoldIpsby filtering the fleet againsttarget.newInstanceIds:The plan therefore showed the IPs of the new instances being torn down, while the actual rollback action (lines below) correctly reactivates
target.oldInstanceIdsfor blue-green. The displayed IPs list contradicted what the command did.Fix
Extract a tested
rollbackPlanIps()helper that filters againsttarget.oldInstanceIds, and use it in the rollback plan. Adds regression tests for publicIp, privateIp fallback, and the missing-IP placeholder.Verification
pnpm vitest run packages/cli/src/commands/scale.test.ts→ 53 tests passed (3 new)build-actions.ts/ship.ts(missing built workspace packages), unchanged by this PR