When used with -p (as is the case when building a disk/VM image),
‘guix-register’ doesn’t do any deduplication in the target store, as
noted in the source:
/* XXX: When PREFIX is non-empty, store->linksDir points to the original
store's '.links' directory, which means 'optimisePath' would try to link
to that instead of linking to the target store. Thus, disable
deduplication in this case. */
if (optimize && prefix.empty ())
{
/* Make sure deduplication is enabled. */
settings.autoOptimiseStore = true;
foreach (ValidPathInfos::const_iterator, i, infos)
store->optimisePath (i->path);
}
This should be fixed, but may need to diverge slightly from upstream
libstore.
Ludo’.
