Function r2FileAvailableForRetryJob

r2FileAvailableForRetryJob(
    needsR2Head: boolean,
    r2Key: string,
    availabilityByKey: ReadonlyMap<string, boolean>,
): boolean
Resolves r2FileAvailable for a job that may need retry, using a pre-built availability map.
Parameters
- needsR2Head: boolean
  Whether any retryable failed platform on the job requires a HEAD check.
- r2Key: string
  Job R2 key, if any.
- availabilityByKey: ReadonlyMap<string, boolean>
  Map from resolveR2AvailabilityForKeys.
Returns boolean
null when no HEAD was needed; otherwise whether the file still exists.
- Defined in lib/uploads/r2-availability.ts:81