Resolve the ISO date for a manifest, accepting only a strictly-formed YYYY-MM-DD value. Returns undefined when the manifest has no usable date so callers can fall through to a path-based heuristic.
YYYY-MM-DD
undefined
Parsed manifest
Strict ISO date or undefined
Resolve the ISO date for a manifest, accepting only a strictly-formed
YYYY-MM-DDvalue. Returnsundefinedwhen the manifest has no usable date so callers can fall through to a path-based heuristic.