Crate zarrs_tools

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§zarrs_tools

Latest Version msrv build

Various tools for creating and manipulating Zarr v3 data with the zarrs rust crate.

A changelog can be found here.

§Tools

All tools support input and output of Zarr V3 data. Some tools additionally support input of a V3 compatible subset of Zarr V2.

  • zarrs_reencode: reencode an array. Manipulate the chunk size, shard size, codecs, fill value, chunk key encoding separator, and attributes.
  • zarrs_filter (feature filter): apply simple image filters (transformations) to an array.
  • zarrs_ome (feature ome): convert an array to an OME-Zarr 0.5 multi-scale image.
  • zarrs_info (feature info): return metadata related info or the range/histogram of an array.
  • zarrs_validate (feature validate): validate that two arrays are equivalent.
  • zarrs_binary2zarr (feature binary2zarr): create an array from piped binary data.
  • zarrs_ncvar2zarr (feature ncvar2zarr): convert a netCDF variable to an array.

See docs/ for tool documentation.

§zarrs Benchmarking

  • zarrs_reencode: suitable for round trip benchmarking.
  • zarrs_benchmark_read_sync (feature benchmark): benchmark the zarrs sync API.
  • zarrs_benchmark_read_async (feature benchmark): benchmark the zarrs async API.

See the LDeakin/zarr_benchmarks repository for benchmarks of zarrs against other Zarr V3 implementations.

§Install

§Prebuilt Binaries

# Requires cargo-binstall https://github.com/cargo-bins/cargo-binstall
cargo binstall zarrs_tools

Prebuilt binaries are not available on all platforms.

§From crates.io

cargo install --all-features zarrs_tools

§From source

cargo install --all-features --path .
# cargo install --all-features --git https://github.com/LDeakin/zarrs_tools

§Enabling SIMD intrinsics

Encoding and decoding performance may be improved with avx2/sse2 enabled (if supported).

This can be enabled by compiling with either of:

  • RUSTFLAGS="-C target-cpu=native"
  • RUSTFLAGS="-C target-feature=+avx2,+sse2"

§Enabling non-default zarrs codecs

Non-default zarrs codecs (see zarrs crate features) can be enabled by passing them as feature flags. For example:

cargo install zarrs_tools --all-features --features zarrs/bitround,zarrs/zfp,zarrs/bz2,zarrs/pcodec

§Licence

zarrs_tools is licensed under either of

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.