ZARR(1)

📦 version 3.3.0, in ubuntu resolute, ubuntu stonking

💖 ZARR 💖

okay bestie, gather round, because this is the migration tool that takes your zarr files from v2 to v3 and it's lowkey a lifesaver 🦋

✨ NAME ✨

zarr — the migration tool that converts zarr files from v2 to v3, no cap 💅

🌸 DESCRIPTION 🌸

Here's the whole vibe, straight up:

Usage: zarr [OPTIONS] COMMAND [ARGS]...

See the available commands below — and if you wanna get the deets on any individual one, just hit it with zarr COMMAND --help. iykyk 🎀

✨ Options ✨

  • --verbose — turns on verbose logging, which prints info about the metadata files that are getting deleted / saved. the default is no-verbose, so it stays quiet unless you ask. 👑
  • --install-completion — installs completion for whatever shell you're currently living in. slay. ✨
  • --show-completion — shows you the completion for the current shell so you can copy it or customize the installation however you want. 🎀
  • --help — shows this message and then dips. bye 💜

🌈 Commands 🌈

  • migrate — migrates all v2 metadata in a zarr hierarchy over to v3. it creates a zarr.json file for every single level (so, every group / array, bestie, every one). and the v2 files like .zarray, .zattrs etc.? those get left exactly as-is. not touched, not deleted, just vibing. 🫶
  • remove-metadata — removes all the v2 metadata files (.zarray, .zattrs, .zgroup, .zmetadata) or the v3 metadata files (zarr.json) from the Zarr you point it at.
⚠️ heads up bestie — this one removes metadata files at all levels of the hierarchy. every group and every array. it does not do a little bit. it does the whole thing. 💀

that's the whole page, fr fr. this is zarr 3.1.3, dated September 2025 — go forth and migrate, main character 🌟💖✨

📦 where this page comes from