zarrs bindings [do not merge]#4064

Draft

d-v-b wants to merge 46 commits into

zarr-developers:mainfrom

d-v-b:zarrs-bindings

Commits on Jun 11, 2026

docs: design spec for zarrs-backed low-level functional API

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Commits on Jun 12, 2026

Commits on Jun 13, 2026

fix: keep empty-selection decode_region result read-only

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Commits on Jun 15, 2026

docs: note decode_region overread; tidy selection normalizer

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perf: cache constructed Arrays for native filesystem stores

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fix: recover from poisoned Array-cache mutex instead of wedging

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docs: record Array construction cache in design spec

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docs: design spec for backend-agnostic CRUD layer

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docs: consistent CRUD verb set (create/read/write/delete/list)

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docs: simplify CRUD reads to two non-overlapping addressing axes

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docs: make read_encoded_chunk a facade store.get helper, not a backend method

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docs: implementation plan for backend-agnostic CRUD layer

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feat: zarr.crud skeleton — CrudBackend protocol, registry, config

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fix: friendly error for missing zarrs backend; document protocol limits

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feat: pure-Python ReferenceBackend for zarr.crud

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fix: honor v2 memory order in ReferenceBackend chunk codec spec

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feat: zarr.crud shared facade + differential suite (reference backend)

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refactor: share parse_array_metadata; document bytes contract; OOB test

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feat: ZarrsBackend conforms to CrudBackend; zarr.zarrs is now a backend

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docs/ci: zarr.crud changelog and CI coverage

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fix: reference backend matches zarrs on v2 groups and all-fill chunk drops

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test: track zarrs v2-group attribute divergence as strict xfail; document it

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Commits on Jun 17, 2026

Merge branch 'main' into zarrs-bindings
d-v-b
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