Same restoration as the pypi wrapper, same reasoning: serialization of
concurrent publishers, killed-publisher reconciliation via locked readiness,
the crash-phase matrix, and multiply-linked-leaf rejection are properties of
the LOCK design, not of how many files publish.
Adaptations for one file: the mid-publication pause hooks the binary rename
itself (the runtime lock is held until publish returns, so the serialization
property is exercised exactly as before); the "partial sidecar publish" crash
phase is gone with the sidecars; backup-member expectations drop to the single
member, including cleanup-interrupted leaving 0 rather than 1; and the
hardlink-rejection guard now targets the binary leaf.
go vet + gofmt clean; full Go suite ok including the restored
TestConcurrentRuntimePublishersAreSerialized,
TestKilledRuntimePublisherIsReconciledByLockedReadiness (5 crash phases),
TestRuntimePublicationCrashHelper and
TestRuntimeReadinessRejectsMultiplyLinkedLeaves.
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>
Martin Vogel
3f54d7c7ea