feat:metadata package - #3919

Merged

d-v-b merged 73 commits into

zarr-developers:mainfrom

d-v-b:refactor/metadata-package

May 1, 2026

Commits on Apr 21, 2026

feat(metadata): scaffold zarr-metadata package structure

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17e74a9
build(metadata): depend on zarr-metadata via local uv workspace source

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feat(metadata): add JSON, NamedConfig, NamedRequiredConfig primitives

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feat(metadata): add v3 array metadata types

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feat(metadata): add v3 consolidated metadata type

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23aed89
feat(metadata): add v3 group metadata type

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feat(metadata): wire up zarr_metadata.v3 re-exports

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feat(metadata): add faithful v2 array metadata types

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feat(metadata): add v2 group metadata type

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feat(metadata): add v2 consolidated metadata type (canonical impl, not spec)

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feat(metadata): wire up zarr_metadata.v2 re-exports

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feat(metadata): add ArrayMetadata, GroupMetadata version-polymorphic unions

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e431dee
feat(metadata): add Codec envelope and blosc codec configurations

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feat(metadata): add dtype types (DType, LengthBytesConfig, FixedLengthBytesConfig, TimeConfig)

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test(metadata): smoke + structural tests for the package

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refactor(common): re-export JSON, NamedConfig, NamedRequiredConfig from zarr-metadata

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refactor(metadata): re-export v3 types from zarr-metadata

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refactor(metadata): re-export faithful v2 array metadata type

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refactor(codecs): re-export blosc codec configurations from zarr-metadata

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1098718
refactor(abc): re-export CodecJSON from zarr-metadata

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refactor(dtype): re-export DTypeJSON from zarr-metadata

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refactor(dtype): re-export LengthBytesConfig from zarr-metadata

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refactor(dtype): re-export FixedLengthBytesConfig from zarr-metadata

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refactor(dtype): re-export TimeConfig from zarr-metadata

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refactor(metadata): use tuple[int, ...] for fixed-length fields + typed NumcodecsConfig

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refactor(metadata): fix explicit re-exports and complete DateTimeUnit migration

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refactor(metadata): extract primitives to common.py to break import cycle

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fix(metadata): address review findings

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refactor(metadata): remove consolidated_metadata from GroupMetadataV3

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chore(metadata): don't track zarr-metadata's uv.lock

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feat(metadata): add v3 codec types for bytes, crc32c, gzip, zstd, transpose, sharding

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refactor(metadata): define codec envelope TypedDicts explicitly

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feat(metadata): add Final string constants for codec names and enum-valued fields

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docs(metadata): say "codec metadata" instead of "codec envelope"

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docs(metadata): use single-backtick markdown code formatting

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feat(metadata): add v3 spec data type metadata

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refactor(metadata): per-dtype modules with fill-value types and validators

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refactor(metadata): per-grid and per-encoding modules for chunk_grid + chunk_key_encoding

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refactor(metadata): move codec/ and dtype/ under v3/

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refactor(metadata): rename v3/dtype/ -> v3/data_type/

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Commits on Apr 22, 2026

Merge branch 'main' into refactor/metadata-package
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ef4b773
feat: add zarr-metadata package

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Merge branch 'main' of github.com:zarr-developers/zarr-python into refactor/metadata-package
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Merge branch 'main' into refactor/metadata-package
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test(metadata): drop tests that don't actually test anything

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build(metadata): lower minimum Python to 3.11

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Commits on Apr 27, 2026

Merge branch 'main' into refactor/metadata-package
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331ea93

Commits on Apr 28, 2026

Commits on Apr 29, 2026

refactor: clean up codecs init
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84d5ca1
fix: correct v2 structured dtype spec
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refactor: drop readonly for numcodecs config
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docs: improve docstring
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fix: use empty typeddict for crc32c config
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fix: remove arbitrary json from consolidated model
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Merge branch 'main' into refactor/metadata-package
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fix: don't depend on zarr-metadata yet
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fix: typesize is not required
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fix: re-wire zarr-metadata up as a dependency for zarr-python
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chore: revert changes to src/zarr
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Merge branch 'main' into refactor/metadata-package
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chore: mypy ignore the new package
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Commits on Apr 30, 2026

Merge branch 'refactor/metadata-package' of https://github.com/d-v-b/zarr-python into refactor/metadata-package
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cdedda2

Commits on May 1, 2026

Merge branch 'main' into refactor/metadata-package
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df7a4f5
refactor: rename extra field
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refactor: we do a little refactoring
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test: more dtype tests
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chore: add ci
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chore: use typing extensions typeddict
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fix: unbreak ci
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chore: clean up top level exports
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chore: clarify extension fields and rename type
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allow must_understand: true, and add canonical nan strings
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