projects@yorhel.nl
home - git - @ayo
= pgp = only used for releases
key - mit
7446 0D32 B808 10EB A9AF A2E9 6239 4C69 8C27 39FA

Cute decorative scissors, cutting through your code.

Torreas - Torrent file reassembler

Torreas is a small command-line utility to scan directories in order to find files that are mentioned in a given torrent. It does this by only comparing file sizes and checksums, not location or file name, so it can be used to reconstruct a torrent that you have already downloaded, renamed and archived.

Download

Latest version Atom feed
0.2 (File: torreas-0.2.tar.gz
Size: 9.6 KiB (9.801 bytes)
PGP: torreas-0.2.tar.gz.asc
MD5: 807186254608c12720e3c50609fb761c
SHA1: 341e8dcbd5686f2c2c2381ebb6b80dbf5966b213
SHA-256: f73eee4bb7b3ceb72edd57ff296719f6386031ba996336290724fc37aef1bf1c
torreas-0.2.tar.gz
- changes)
Build requirements
Zig 0.11
License
MIT
Development version
Available on git.

Bugs & limitations

Torreas currently does an exhaustive search and is therefore able to find all matching (duplicate) files. This is usually overkill, as you’ll only need one match for each file to reassemble a torrent. This totally hasn’t been a problem in my tests so far, but if there’s many candidate files it may be faster to stop searching after the first match. I may or may not fix this in the future.

Padding files in torrents are not yet supported. Should be easy to fix, I simply haven’t encountered such a torrent yet.

Torreas could be a lot faster if it could use multiple cores to verify checksums, but the current version is single-threaded. I don’t expect this to change anytime soon, I don’t particularly enjoy writing threaded code and Zig, in its current form, doesn’t yet have the tools to help out much in this area either.

Because torrent checksums can span multiple files, there are edge cases where torreas will run out of memory or simply never complete while it is trying to brute-force all possible file combinations. I may add more heuristics or manual user feedback in the future to better handle such cases.