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Check-in [21d510a5bd]

Overview
Comment:landings: memoise the mergeability probe on the tip pair

The probe is a full-store scan by design and measures 2.0s here, paid on every view. Keyed on the two check-ins, so a push invalidates it by making a different key rather than by anyone clearing a cache. 1.9s cold, 50ms warm.

Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA3-256: 21d510a5bdbf65264d55b5e921381f1a30ed06809249b841a5bab0cc1c75f349
User & Date: dmestas on 2026-08-23 21:43:54.453
Other Links: manifest | tags
Context
2026-08-23
21:50
landings: prove the lifecycle end to end

open, comment, reject, accept through the forge against a real store — accept merges to trunk via zit#131's bare-store path. Also checks the record still reads as an ordinary forum thread. check-in: 9a84a5d962 user: dmestas tags: trunk

21:43
landings: memoise the mergeability probe on the tip pair

The probe is a full-store scan by design and measures 2.0s here, paid on every view. Keyed on the two check-ins, so a push invalidates it by making a different key rather than by anyone clearing a cache. 1.9s cold, 50ms warm. check-in: 21d510a5bd user: dmestas tags: trunk

21:38
landings: list the branch's check-ins

A proposal is changes with reasons attached; a diff keeps the changes and throws the reasons away. zit#133's display half, from our own index. check-in: 120277efc7 user: dmestas tags: trunk

Changes