bupstash を Homebrew, apk, MacPorts, Nix, pacman でインストール

プロジェクトリンク

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コマンドとエイリアス

• bupstash

プロジェクトの歴史

The public repository was created in August 2020, and Andrew Chambers introduced Bupstash publicly in November 2020. The README and website describe a beta-stage tool designed for efficient deduplication, strong privacy, offline decryption keys, encrypted tag search, slow-network performance, restricted remote access controls, and low memory use.

The technical overview explains the implementation model: arbitrary data streams are chunked, deduplicated, encrypted client side, stored locally or remotely, and indexed with encrypted metadata. The design uses keyed hashes for addressing chunks, a rolling hash for split points, libsodium cryptography, hash trees for large streams, and client-side metadata sync for queries.

採用の歴史

Bupstash gained enough command-line backup interest to be packaged across several ecosystems; the input metadata records apk, Homebrew, MacPorts, Nix, and Arch packages. Its adoption is narrower than older tools such as bup or Borg, but it has a clear niche among users who want encrypted deduplication without operating a large backup service.

使われ方

Typical usage starts by initializing a repository, creating a key file, setting `BUPSTASH_REPOSITORY` and `BUPSTASH_KEY`, then using commands such as `put`, `list`, `get`, `diff`, `restore`, `rm`, and `gc`. Bupstash can store file trees, tar streams, and command output, and its `put` command benefits from avoiding already-sent file content.

パッケージ好きにとっての重要性

Bupstash is significant because it shows the post-Borg/Restic generation of backup tooling: single-binary CLI distribution, strong default encryption, SSH-friendly self-hosting, and deduplication that still works with encrypted data. Its key-separation model is especially attractive for package nerds thinking about ransomware-resistant unattended backups.

タイムライン

• 2020-08: Public GitHub repository created.
• 2020-11-20: Introductory Bupstash blog post published.
• 2021: Project documentation covered garbage collection, encrypted metadata, and operational guides.
• 2026: Homebrew metadata lists Bupstash as a packaged encrypted-backup CLI.

Related projects

• Bupstash is related to bup by name and backup focus, and to Borg, Restic, Attic, Tarsnap, Duplicity, and rdiff-backup as part of the wider deduplicating and encrypted backup-tool family.

ソース

• https://acha.ninja/blog/introducing_bupstash/
• https://bupstash.io/
• https://bupstash.io/doc/guides/Getting%20Started.html
• https://bupstash.io/doc/man/bupstash.html
• https://github.com/andrewchambers/bupstash
• https://raw.githubusercontent.com/andrewchambers/bupstash/master/doc/technical_overview.md
• source_facts.package-manager