This package is not currently in any snapshots. If you're interested in using it, we recommend adding it to Stackage Nightly. Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.
This program is capable of finding duplicated files and turning
one of them into a hard link to the other, effectively reducing
the space usage (as the data will not be duplicated in the disk).
It works only on POSIXish systems, and was tested in GNU/Linux only.
WARNING: As the duplicated files will point to each other, if one
of them is modified then the other will as well! You should use
make-hard-links only if the files won't be modified, only renamed,
removed, or created.
The author had a Maildir with lots of duplicated files, and in
his case make-hard-links was capable of reducing the space usage
in 29% (as measured by "du -hcs" and "du -hcs -l"). As a final note,
this program currently has a high memory usage as it has to maintain
information about all the files that are possibly duplicates in
memory at once (the author measured 1.7 GiB of memory for about
300.000 files).
