0.2.0

Session persistence

• Saved session state under .elixir_torrent/state/{info_hash}.term (relative to File.cwd!/0)
• On download/1, an existing session is loaded and the bitfield is verified against disk before resuming
• remove/2 deletes the session file; delete_data: true also removes downloaded files

Graceful shutdown API

• stop_and_serialize/1 — stop piece downloads, disconnect peers (BEP 3), send tracker event=stopped, persist session, then stop the torrent process
• stop_all_and_serialize/0 — same for every active torrent
• list/0 — returns info hashes for all running torrent processes

Peer disconnect

• Peers receive BEP 3 cancel / not interested / choke before TCP connections close
• Used during shutdown so peers are notified cleanly

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Install via Hex: {:elixir_torrent, "~> 0.2.0"}

0.1.0

First public release — BitTorrent client engine publishable as a Hex dependency.

This is a fully functional BitTorrent client that actually downloads torrents — not a stub or protocol sketch. It started as a course project for Functional Programming with Elixir at Sofia University. After the course ended, development continued in spare time until it was ready to publish on Hex.

Public API

• ElixirTorrent.download/1 — start a download from a .torrent file on disk
• ElixirTorrent.stats/2 — poll name, speeds, and progress for a running torrent
• Escript entrypoint for CLI usage

Protocol & networking

• Peer wire protocol (BEP 3) with choking, rarest-first piece selection, and endgame mode
• Fast Extension (BEP 6) — allowed_fast, reject on choked requests
• IPv6 tracker peers (peers6) and dual-stack listen sockets
• Multi-homed HTTP announce (BEP 7) over IPv4 and IPv6
• HTTP and UDP trackers (BEP 15), compact peer lists (BEP 23)

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Install via Hex: {:elixir_torrent, "~> 0.1.0"}