File deduplication in node.js; reduce your disk usage with symlinks (github.com)

Hardlinks don't always work well with tools; IIRC, I've seen backup tools support symlinks but not hardlinks.

Hardlinks cannot link across partitions. Symlinks can. Therefore symlinks always work, so it is easier to use.

Would be trivial to move to hard links, but for all the reasons outlined below symlinks seem to make the most sense right now. Agreed that if you delete the base file, all the symlinks break is not optimal. Would appreciate help, fork it, and make it better.