scan_unit_stats

function of dascore.io.index.indexer

source

scan_unit_stats(
    path ,
)-> ‘tuple[int | None, int | None]’

Return the (mtime_ns, size_bytes) used to detect source changes.

Index writers and readers share this check. Files return their stat values; directory formats return a manifest fingerprint because directory stats miss member content and size changes. Return (None, None) when filesystem access fails.