Function rolloutProgress

rolloutProgress(
rows: FleetRow[],
targetPackGeneration: string,
): { fraction: number; patched: number; total: number } | null
How far a rollout has got, as a fraction of the sites that have reported.
Parameters
- rows: FleetRow[]
- targetPackGeneration: string
Returns { fraction: number; patched: number; total: number } | null
null when nothing has reported, rather than 0 -- "no sites are patched" and "there are no sites" are different answers and only one of them means something is wrong.
- Defined in src/ops/fleet.ts:164